:root {
    color-scheme: light;
    --ui-bg: #f3f6f4;
    --ui-surface: #ffffff;
    --ui-surface-muted: #edf3ef;
    --ui-ink: #1c2c27;
    --ui-muted: #60716a;
    --ui-line: #dce6e0;
    --ui-accent: #315fbd;
    --ui-accent-hover: #244e9f;
    --ui-accent-soft: #e8effb;
    --ui-sidebar: #172844;
    --ui-shadow: 0 12px 34px rgba(34, 63, 107, 0.07);
    --ui-radius: 14px;
}

* {
    font-family: "Aptos", "Segoe UI Variable", "Segoe UI", sans-serif;
}

body {
    background: var(--ui-bg);
    color: var(--ui-ink);
    line-height: 1.55;
}

button,
input,
select,
textarea {
    font: inherit;
}

a,
button {
    -webkit-tap-highlight-color: transparent;
}

a {
    transition: color 160ms ease, background-color 160ms ease, border-color 160ms ease;
}

button {
    transition: color 160ms ease, background-color 160ms ease, border-color 160ms ease, transform 160ms ease;
}

button:active,
.btn:active,
a.primary-btn:active,
a.welcome-button:active {
    transform: translateY(1px);
}

:focus-visible {
    outline: 3px solid rgba(39, 107, 86, 0.34);
    outline-offset: 3px;
}

h1,
h2,
h3,
h4 {
    color: var(--ui-ink);
    font-family: "Aptos Display", "Aptos", "Segoe UI Variable", "Segoe UI", sans-serif;
    line-height: 1.2;
}

.sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    z-index: 1000;
    width: 252px;
    min-height: 100vh;
    padding: 25px 16px;
    background: var(--ui-sidebar);
    color: #f4f8f5;
    border-right: 1px solid rgba(255, 255, 255, 0.08);
}

.sidebar .logo,
.sidebar .brand {
    color: #f4f8f5;
    padding-bottom: 27px;
}

.sidebar .logo span {
    color: #a7d4bd;
}

.sidebar .brand-icon {
    background: #2c735c;
    border-radius: 11px;
}

.sidebar .brand-text span,
.sidebar .sidebar-title,
.sidebar .section-title {
    color: #a8bbb1;
}

.sidebar nav {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.sidebar nav a,
.sidebar a.nav {
    display: flex;
    align-items: center;
    min-height: 44px;
    padding: 10px 12px;
    border: 1px solid transparent;
    border-radius: 9px;
    color: #d6e1db;
    text-decoration: none;
    font-size: 14px;
    font-weight: 550;
    white-space: nowrap;
}

.sidebar nav a:hover,
.sidebar a.nav:hover {
    background: rgba(255, 255, 255, 0.08);
    color: #ffffff;
}

.sidebar nav a.active,
.sidebar a.nav.active {
    background: rgba(151, 205, 174, 0.16);
    border-color: rgba(151, 205, 174, 0.2);
    color: #ffffff;
}

.main {
    width: auto;
    max-width: none;
    min-height: 100vh;
    margin-left: 252px;
    padding: 34px clamp(22px, 4vw, 58px);
}

.layout {
    display: block;
    min-height: 0;
}

.layout > main {
    width: auto;
    max-width: 1280px;
    margin-left: 252px;
    padding: 36px clamp(22px, 4vw, 58px);
}

body > header:not(.header):not(.topbar) {
    min-height: 72px;
    height: auto;
    margin-left: 252px;
    padding: 12px clamp(22px, 4vw, 58px);
    background: var(--ui-surface);
    border-bottom: 1px solid var(--ui-line);
    box-shadow: 0 4px 18px rgba(28, 57, 46, 0.03);
}

body > header .logo {
    color: var(--ui-accent);
    font-size: 19px;
}

.sidebar + .main,
.sidebar ~ .main {
    max-width: none;
}

.topbar,
.header {
    min-height: 72px;
    height: auto;
    padding: 15px clamp(18px, 3vw, 36px);
    background: var(--ui-surface);
    color: var(--ui-ink);
    border-bottom: 1px solid var(--ui-line);
}

.topbar h1,
.header h1,
.header-left h1 {
    color: var(--ui-ink);
}

.topbar p,
.header-left p {
    color: var(--ui-muted);
}

.content,
.container {
    width: min(100% - 40px, 1100px);
    margin: 30px auto;
}

.card,
.stat-card,
.quick-start,
.feature-card,
.panel,
.box {
    border: 1px solid var(--ui-line);
    border-radius: var(--ui-radius);
    background: var(--ui-surface);
    box-shadow: var(--ui-shadow);
}

.card {
    padding: 24px;
}

.card h2,
.card h3,
.quick-start h2 {
    color: var(--ui-ink);
}

.subtitle,
.small,
.card p,
.quick-start p {
    color: var(--ui-muted);
}

.section-title {
    margin: 30px 0 14px;
    color: var(--ui-ink);
    font-size: 20px;
    font-weight: 700;
}

.primary,
.file-button,
.success-button,
.choose-btn,
.upload-btn,
.ask-btn,
.welcome-button,
.quick-buttons a,
.dashboard-btn,
.primary-btn,
.signup-btn,
.save-button,
.login-button,
.signup-button,
.container button,
.header-button,
#sendButton {
    border: 1px solid transparent;
    border-radius: 9px;
    background: var(--ui-accent);
    color: #ffffff;
    font-weight: 650;
    text-decoration: none;
    box-shadow: none;
}

.primary:hover,
.file-button:hover,
.choose-btn:hover,
.upload-btn:hover,
.ask-btn:hover,
.quick-buttons a:hover,
.dashboard-btn:hover,
.primary-btn:hover,
.signup-btn:hover,
.save-button:hover,
.login-button:hover,
.signup-button:hover,
.container button:hover,
#sendButton:hover {
    background: var(--ui-accent-hover);
    color: #ffffff;
}

.success-button {
    background: #39745c;
}

.quick-buttons a.secondary,
.dashboard-button,
.secondary-btn {
    background: var(--ui-accent-soft);
    color: var(--ui-accent);
    border-color: #d2e5d9;
}

.quick-buttons a.secondary:hover,
.dashboard-button:hover,
.secondary-btn:hover {
    background: #d8eadd;
    color: var(--ui-accent-hover);
}

.clear-button,
.reset-button,
.logout-button,
.delete-btn {
    background: #f9e9e7;
    color: #873c34;
}

.logout-button:hover,
.delete-btn:hover,
.clear-button:hover,
.reset-button:hover {
    background: #f2d8d4;
    color: #71302a;
}

input:not([type="checkbox"]):not([type="radio"]),
select,
textarea,
.input {
    border: 1px solid #cbd8d0;
    border-radius: 9px;
    background: #ffffff;
    color: var(--ui-ink);
}

input:not([type="checkbox"]):not([type="radio"]):focus,
select:focus,
textarea:focus,
.input:focus {
    border-color: var(--ui-accent);
    box-shadow: 0 0 0 3px rgba(39, 107, 86, 0.12);
    outline: none;
}

input::placeholder,
textarea::placeholder {
    color: #718078;
    opacity: 1;
}

.message.success,
.success {
    background: #e7f3eb;
    color: #24553b;
}

.message.error,
.error {
    background: #fae9e7;
    color: #873c34;
}

.message.info,
.info {
    background: #e7f0eb;
    color: #315d49;
}

.welcome {
    position: relative;
    overflow: hidden;
    border: 1px solid #214d3e;
    border-radius: 16px;
    background: linear-gradient(112deg, #183b31, #28654f);
    box-shadow: 0 14px 30px rgba(28, 70, 53, 0.13);
}

.welcome h2,
.welcome p {
    color: #f4faf6;
}

.welcome p {
    max-width: 62ch;
}

.welcome-button {
    background: #f4faf6;
    color: #204d3d;
}

.welcome-button:hover {
    background: #e3f0e7;
    color: #173f32;
}

.features {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
}

.features .card {
    box-shadow: 0 5px 18px rgba(28, 57, 46, 0.045);
    transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.features .card:hover {
    transform: translateY(-2px);
    border-color: #bfd6c8;
    box-shadow: 0 12px 25px rgba(28, 57, 46, 0.09);
}

.card-icon,
.feature-icon {
    border-radius: 11px;
    background: var(--ui-accent-soft);
    color: var(--ui-accent);
}

.card a {
    color: var(--ui-accent);
}

.chatbot-card {
    border-color: #c7dfd0;
}

.chatbot-card .card-icon {
    background: #e1efe6;
}

.chatbot-card a {
    color: var(--ui-accent);
}

.stats {
    gap: 14px;
}

.stat-card {
    box-shadow: 0 5px 18px rgba(28, 57, 46, 0.045);
}

.stat-card h4,
.stat-description {
    color: var(--ui-muted);
}

.stat-value {
    color: var(--ui-ink);
}

.upload-area {
    border-color: #9bc3aa;
    background: #f4f8f5;
}

.document-card {
    border-color: var(--ui-line);
    border-radius: 11px;
    background: var(--ui-surface);
    box-shadow: 0 4px 14px rgba(28, 57, 46, 0.04);
}

.document-name,
.file-name {
    color: var(--ui-ink);
}

.latest-box strong {
    overflow-wrap: anywhere;
}

.document-info,
.upload-area p {
    color: var(--ui-muted);
}

.latest-box,
.answer,
.answer-box,
.source-item {
    border-color: #d5e5da;
    border-radius: 10px;
    background: #f4f8f5;
    color: var(--ui-ink);
}

.answer,
.answer-box {
    border-left-color: var(--ui-accent);
}

.source-item strong {
    color: var(--ui-accent);
}

.memory-bar {
    background: #edf4ef;
    border-color: var(--ui-line);
    color: var(--ui-muted);
}

#memoryText {
    color: var(--ui-accent);
}

.chat-container {
    background: var(--ui-bg);
}

.bot .bubble,
.typing {
    border-color: var(--ui-line);
    border-radius: 13px;
    background: var(--ui-surface);
    color: var(--ui-ink);
    box-shadow: 0 4px 14px rgba(28, 57, 46, 0.04);
}

.user .bubble {
    border-radius: 13px;
    background: var(--ui-accent);
    color: #ffffff;
}

.input-area {
    border-color: var(--ui-line);
    background: var(--ui-surface);
}

.input-area .hint {
    color: #6e7d76;
}

.login-container,
.container:has(#signupForm),
.container:has(#forgotPasswordForm),
.container:has(#resetPasswordForm) {
    max-width: 460px;
    margin: 0 auto;
    padding: 24px;
}

body:has(.login-card),
body:has(#signupForm),
body:has(#forgotPasswordForm),
body:has(#resetPasswordForm) {
    display: grid;
    min-height: 100vh;
    place-items: center;
    padding: 26px 0;
    background:
        radial-gradient(ellipse at 16% 10%, rgba(208, 229, 215, 0.55), transparent 36%),
        var(--ui-bg);
}

.login-card,
.container:has(#signupForm) > .card,
.container:has(#forgotPasswordForm) > .card,
.container:has(#resetPasswordForm) > .card {
    border: 1px solid var(--ui-line);
    border-top: 4px solid var(--ui-accent);
    border-radius: 15px;
    background: var(--ui-surface);
    box-shadow: 0 18px 46px rgba(28, 57, 46, 0.1);
}

.login-card .logo,
.container:has(#signupForm) .logo,
.container:has(#forgotPasswordForm) .logo,
.container:has(#resetPasswordForm) .logo {
    color: var(--ui-accent);
    font-size: 22px;
}

.login-card .title,
.container:has(#signupForm) h1,
.container:has(#forgotPasswordForm) h1,
.container:has(#resetPasswordForm) h1 {
    color: var(--ui-ink);
}

.login-card .subtitle,
.container:has(#signupForm) .subtitle,
.container:has(#forgotPasswordForm) .subtitle,
.container:has(#resetPasswordForm) .subtitle {
    color: var(--ui-muted);
}

.signup-link a,
.login-link a,
.back-link a {
    color: var(--ui-accent);
}

.password-info,
.show-password {
    color: var(--ui-muted);
}

.navbar {
    min-height: 72px;
    height: auto;
    padding: 12px clamp(20px, 7vw, 100px);
    border-bottom: 1px solid var(--ui-line);
    box-shadow: 0 4px 18px rgba(28, 57, 46, 0.04);
}

.navbar .logo {
    color: var(--ui-accent);
}

.logo-icon {
    border-radius: 10px;
    background: var(--ui-accent);
}

.hero {
    background:
        radial-gradient(ellipse at 82% 14%, rgba(205, 229, 212, 0.45), transparent 30%),
        var(--ui-bg);
}

.hero-content h1 {
    color: var(--ui-ink);
    font-family: "Aptos Display", "Aptos", "Segoe UI Variable", "Segoe UI", sans-serif;
}

.hero-content h1 span {
    color: var(--ui-accent);
}

.hero-content p,
.feature-text span {
    color: var(--ui-muted);
}

.feature-card {
    border-radius: 14px;
    box-shadow: var(--ui-shadow);
}

.feature-card h2,
.feature-text strong {
    color: var(--ui-ink);
}

.feature {
    border-color: var(--ui-line);
}

.login-btn {
    color: var(--ui-accent);
    border-color: #b9d4c4;
}

.login-btn:hover {
    background: var(--ui-accent-soft);
}

.save-button {
    background: var(--ui-accent);
}

.setting-row {
    border-color: #e7ede9;
}

.switch input:checked + .slider {
    background: var(--ui-accent);
}

.status-dot.online,
.dot.online {
    background: #39845e;
}

.empty {
    color: var(--ui-muted);
}

html[data-dark-mode="on"] body {
    color: #e4ece7 !important;
}

html[data-dark-mode="on"] .card,
html[data-dark-mode="on"] .stat-card,
html[data-dark-mode="on"] .quick-start,
html[data-dark-mode="on"] .feature-card,
html[data-dark-mode="on"] .panel,
html[data-dark-mode="on"] .box,
html[data-dark-mode="on"] .document-card,
html[data-dark-mode="on"] .login-card,
html[data-dark-mode="on"] .container:has(#signupForm) > .card,
html[data-dark-mode="on"] .container:has(#forgotPasswordForm) > .card,
html[data-dark-mode="on"] .container:has(#resetPasswordForm) > .card {
    border-color: #344b40 !important;
    background: #172720 !important;
    color: #e4ece7 !important;
}

html[data-dark-mode="on"] h1,
html[data-dark-mode="on"] h2,
html[data-dark-mode="on"] h3,
html[data-dark-mode="on"] h4,
html[data-dark-mode="on"] .stat-value,
html[data-dark-mode="on"] .document-name,
html[data-dark-mode="on"] .file-name {
    color: #eef5f0 !important;
}

html[data-dark-mode="on"] p,
html[data-dark-mode="on"] label,
html[data-dark-mode="on"] .subtitle,
html[data-dark-mode="on"] .small,
html[data-dark-mode="on"] .setting-description,
html[data-dark-mode="on"] .document-info {
    color: #bdcbc2 !important;
}

html[data-dark-mode="on"] input:not([type="checkbox"]):not([type="radio"]),
html[data-dark-mode="on"] select,
html[data-dark-mode="on"] textarea,
html[data-dark-mode="on"] .input {
    border-color: #52675b !important;
    background: #101b16 !important;
    color: #eef5f0 !important;
}

html[data-dark-mode="on"] .upload-area,
html[data-dark-mode="on"] .latest-box,
html[data-dark-mode="on"] .answer,
html[data-dark-mode="on"] .answer-box,
html[data-dark-mode="on"] .source-item,
html[data-dark-mode="on"] .memory-bar {
    border-color: #344b40 !important;
    background: #1d3026 !important;
    color: #e4ece7 !important;
}

html[data-dark-mode="on"] .bot .bubble,
html[data-dark-mode="on"] .typing,
html[data-dark-mode="on"] .input-area {
    border-color: #344b40 !important;
    background: #172720 !important;
    color: #e4ece7 !important;
}

@media (max-width: 1050px) {
    .features {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .layout > main {
        padding: 28px 24px;
    }
}

@media (max-width: 760px) {
    .sidebar {
        inset: auto 0 0;
        display: block;
        width: 100%;
        min-height: 0;
        height: 68px;
        padding: 6px 8px max(6px, env(safe-area-inset-bottom));
        border-top: 1px solid rgba(255, 255, 255, 0.12);
        border-right: 0;
    }

    .sidebar .logo,
    .sidebar .brand,
    .sidebar .sidebar-title,
    .sidebar .section-title {
        display: none;
    }

    .sidebar nav {
        height: 100%;
        flex-direction: row;
        align-items: center;
        gap: 4px;
        overflow-x: auto;
        scrollbar-width: none;
    }

    .sidebar nav::-webkit-scrollbar {
        display: none;
    }

    .sidebar nav a,
    .sidebar a.nav {
        flex: 0 0 auto;
        min-height: 46px;
        padding: 8px 11px;
        font-size: 12px;
    }

    .sidebar .logout-button {
        flex: 0 0 auto;
        width: auto;
        margin: 0;
        padding: 9px 11px;
        text-align: center;
    }

    .main,
    .layout > main {
        width: 100%;
        min-height: calc(100vh - 68px);
        margin-left: 0;
        padding: 24px 18px 92px;
    }

    body > header:not(.header):not(.topbar) {
        min-height: 64px;
        margin-left: 0;
        padding: 10px 18px;
    }

    .content,
    .container {
        width: min(100% - 28px, 1100px);
        margin: 20px auto;
    }

    .topbar,
    .header {
        gap: 14px;
        padding: 14px 18px;
    }

    .topbar {
        align-items: flex-start;
    }

    .features,
    .stats {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .chatbot-card p,
    .card p {
        min-height: 0;
    }

    .chat-container {
        padding: 18px;
    }

    .input-area {
        padding: 12px 16px;
    }

    .main:has(#chatContainer) {
        height: calc(100dvh - 68px);
        min-height: 0;
        padding: 0;
    }

    .main:has(#chatContainer) .input-area {
        padding-bottom: 14px;
    }

    body > header:not(.header):not(.topbar) {
        justify-content: space-between;
    }
}

@media (max-width: 540px) {
    .features,
    .documents-grid,
    .grid {
        grid-template-columns: 1fr;
    }

    .stats {
        grid-template-columns: minmax(0, 1fr);
    }

    .stats > .stat-card {
        min-width: 0;
    }

    .main,
    .layout > main {
        padding-right: 14px;
        padding-left: 14px;
    }

    .welcome {
        padding: 22px;
    }

    .topbar {
        display: block;
    }

    .backend-status {
        margin-top: 12px;
    }

    .card {
        padding: 19px;
    }

    .login-container,
    .container:has(#signupForm),
    .container:has(#forgotPasswordForm),
    .container:has(#resetPasswordForm) {
        padding: 14px;
    }

    .login-card,
    .container:has(#signupForm) > .card,
    .container:has(#forgotPasswordForm) > .card,
    .container:has(#resetPasswordForm) > .card {
        padding: 25px 21px;
    }

    .navbar {
        padding: 10px 14px;
    }

    .navbar .logo {
        gap: 7px;
        font-size: 15px;
    }

    .navbar .logo-icon {
        width: 34px;
        height: 34px;
    }

    .nav-buttons {
        gap: 6px;
    }

    .nav-buttons .btn {
        padding: 9px 11px;
        font-size: 12px;
    }

    .hero {
        min-height: calc(100dvh - 64px);
        padding: 34px 18px;
    }

    .hero-content h1 {
        font-size: 36px;
    }

    .hero-content p {
        font-size: 16px;
    }

    .hero-buttons > a {
        flex: 1 1 auto;
        text-align: center;
    }

    .header-actions {
        flex-wrap: wrap;
    }

    .bubble {
        max-width: 92%;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

:root {
    color-scheme: light;
    --ui-bg: #f4f7fc;
    --ui-surface: #ffffff;
    --ui-surface-muted: #edf3fb;
    --ui-ink: #17243a;
    --ui-muted: #61718a;
    --ui-line: #dce5f0;
    --ui-accent: #315fbd;
    --ui-accent-hover: #244e9f;
    --ui-accent-soft: #e8effb;
    --ui-sidebar: #172844;
    --ui-shadow: 0 12px 34px rgba(34, 63, 107, 0.07);
    --ui-radius: 13px;
}

html {
    background: var(--ui-bg);
}

body {
    background: var(--ui-bg);
    color: var(--ui-ink);
    font-family: "Aptos", "Segoe UI Variable", "Segoe UI", sans-serif;
}

button,
input,
select,
textarea {
    font: inherit;
}

:focus-visible {
    outline: 3px solid rgba(49, 95, 189, 0.42);
    outline-offset: 3px;
}

a {
    color: var(--ui-accent);
}

.app-shell {
    --rail-width: 254px;
    display: grid;
    grid-template-columns: var(--rail-width) minmax(0, 1fr);
    min-height: 100vh;
    background: var(--ui-bg);
    transition: grid-template-columns 200ms ease;
}

.app-shell.is-collapsed {
    --rail-width: 78px;
}

.app-sidebar {
    position: sticky;
    z-index: 50;
    top: 0;
    display: flex;
    flex-direction: column;
    width: auto;
    height: 100vh;
    min-height: 0;
    padding: 22px 13px 14px;
    overflow: visible;
    background: var(--ui-sidebar);
    color: #edf4ff;
    border: 0;
}

.app-brand {
    display: flex;
    align-items: center;
    gap: 11px;
    min-height: 42px;
    margin: 0 8px 31px;
    color: #ffffff;
    text-decoration: none;
    white-space: nowrap;
}

.app-brand-mark {
    display: grid;
    flex: 0 0 36px;
    width: 36px;
    height: 36px;
    place-items: center;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    background: #4a79d2;
    color: #ffffff;
    font-size: 17px;
    font-weight: 750;
}

.app-brand-name {
    color: #f6f8fc;
    font-size: 15px;
    font-weight: 700;
    letter-spacing: 0;
}

.app-brand-name span {
    color: #a9c3f3;
}

.app-nav {
    flex: 1;
    overflow: auto;
}

.app-nav-caption {
    margin: 0 11px 9px;
    color: #9aacc8;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 1.2px;
}

.app-nav-group {
    display: grid;
    gap: 5px;
}

.app-nav-link {
    position: relative;
    display: flex;
    align-items: center;
    gap: 13px;
    min-height: 44px;
    padding: 0 12px;
    border: 1px solid transparent;
    border-radius: 8px;
    color: #c4d0e2;
    font-size: 13px;
    font-weight: 550;
    text-decoration: none;
    transition: background-color 160ms ease, color 160ms ease, border-color 160ms ease;
}

.app-nav-link:hover {
    background: rgba(255, 255, 255, 0.08);
    color: #ffffff;
}

.app-nav-link.is-active {
    border-color: rgba(147, 180, 242, 0.2);
    background: #27416a;
    color: #ffffff;
}

.app-nav-link.is-active::before {
    position: absolute;
    top: 9px;
    bottom: 9px;
    left: -13px;
    width: 3px;
    border-radius: 0 3px 3px 0;
    background: #79a5f7;
    content: "";
}

.app-nav-icon {
    display: inline-grid;
    flex: 0 0 21px;
    width: 21px;
    place-items: center;
    color: #a9c3f3;
    font-size: 17px;
    line-height: 1;
}

.app-profile {
    position: relative;
    padding-top: 13px;
    border-top: 1px solid rgba(218, 230, 250, 0.13);
}

.app-profile-menu {
    position: relative;
}

.app-profile-trigger {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
    padding: 8px 5px;
    border-radius: 8px;
    color: #ffffff;
    cursor: pointer;
    list-style: none;
}

.app-profile-trigger::-webkit-details-marker {
    display: none;
}

.app-profile-trigger:hover {
    background: rgba(255, 255, 255, 0.07);
}

.app-avatar {
    display: grid;
    flex: 0 0 34px;
    width: 34px;
    height: 34px;
    place-items: center;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    background: #405b84;
    color: #ffffff;
    font-size: 12px;
    font-weight: 700;
}

.app-profile-copy {
    display: grid;
    min-width: 0;
    gap: 2px;
}

.app-profile-copy strong {
    overflow: hidden;
    color: #f4f7fc;
    font-size: 12px;
    font-weight: 650;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.app-profile-copy > span {
    overflow: hidden;
    color: #a9b8ce;
    font-size: 11px;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.app-profile-more {
    margin-left: auto;
    color: #a9b8ce;
    font-size: 18px;
}

.app-profile-links {
    position: absolute;
    z-index: 80;
    right: 0;
    bottom: calc(100% + 8px);
    left: 0;
    display: grid;
    gap: 3px;
    padding: 6px;
    border: 1px solid var(--ui-line);
    border-radius: 9px;
    background: #ffffff;
    box-shadow: var(--ui-shadow);
}

.app-profile-links a,
.app-profile-links button {
    display: block;
    width: 100%;
    padding: 9px 10px;
    border: 0;
    border-radius: 6px;
    background: transparent;
    color: var(--ui-ink);
    font-size: 12px;
    text-align: left;
    text-decoration: none;
    cursor: pointer;
}

.app-profile-links a:hover,
.app-profile-links button:hover {
    background: var(--ui-surface-muted);
    color: var(--ui-accent);
}

.app-workspace {
    display: flex;
    flex-direction: column;
    min-width: 0;
    min-height: 100vh;
}

.app-topbar {
    position: sticky;
    z-index: 40;
    top: 0;
    display: flex;
    align-items: center;
    gap: 14px;
    min-height: 68px;
    padding: 0 clamp(20px, 3vw, 42px);
    border-bottom: 1px solid var(--ui-line);
    background: rgba(255, 255, 255, 0.96);
    color: var(--ui-ink);
    box-shadow: 0 3px 14px rgba(31, 57, 93, 0.035);
    backdrop-filter: blur(10px);
}

.app-topbar-brand {
    flex: 0 0 auto;
    color: #284a82;
    font-size: 13px;
    font-weight: 700;
    text-decoration: none;
    white-space: nowrap;
}

.app-command-search {
    position: relative;
    display: flex;
    align-items: center;
    gap: 9px;
    width: min(100%, 470px);
    height: 38px;
    margin: 0 auto;
    padding: 0 10px;
    border: 1px solid #dfe7f1;
    border-radius: 8px;
    background: #f6f8fb;
    color: #60718a;
}

.app-command-search:focus-within {
    border-color: #7196dc;
    background: #ffffff;
    box-shadow: 0 0 0 3px rgba(49, 95, 189, 0.1);
}

.app-command-search > span {
    color: #5d77a3;
    font-size: 19px;
}

.app-command-search input {
    width: 100%;
    min-width: 0;
    padding: 0;
    border: 0;
    outline: 0;
    background: transparent;
    color: var(--ui-ink);
    font-size: 12px;
}

.app-command-search input::placeholder {
    color: #78869a;
}

.app-command-search kbd {
    flex: 0 0 auto;
    padding: 2px 5px;
    border: 1px solid #dce4ef;
    border-radius: 4px;
    background: #ffffff;
    color: #718098;
    font-size: 10px;
}

.app-search-results {
    position: absolute;
    z-index: 90;
    top: calc(100% + 8px);
    right: 0;
    left: 0;
    display: grid;
    gap: 3px;
    padding: 6px;
    border: 1px solid var(--ui-line);
    border-radius: 9px;
    background: #ffffff;
    box-shadow: 0 16px 38px rgba(28, 50, 82, 0.15);
}

.app-search-results[hidden] {
    display: none;
}

.app-search-result {
    display: flex;
    align-items: center;
    gap: 9px;
    padding: 9px;
    border-radius: 6px;
    color: var(--ui-ink);
    font-size: 12px;
    text-decoration: none;
}

.app-search-result:hover,
.app-search-result:focus-visible {
    background: var(--ui-accent-soft);
    color: var(--ui-accent);
}

.app-search-result > span:last-child {
    margin-left: auto;
    color: #7e8ea5;
}

.app-search-empty {
    margin: 0;
    padding: 10px;
    color: var(--ui-muted);
    font-size: 12px;
}

.app-icon-button,
.app-history-shortcut {
    display: grid;
    flex: 0 0 36px;
    width: 36px;
    height: 36px;
    place-items: center;
    border: 1px solid transparent;
    border-radius: 8px;
    background: transparent;
    color: #506580;
    font-size: 17px;
    text-decoration: none;
    cursor: pointer;
}

.app-icon-button:hover,
.app-history-shortcut:hover {
    border-color: #d9e4f2;
    background: #f1f5fb;
    color: var(--ui-accent);
}

.app-menu-toggle {
    display: none;
}

.app-page-content {
    flex: 1;
    min-width: 0;
}

.app-page-main,
.app-shell .layout > main {
    width: auto !important;
    max-width: none !important;
    min-width: 0;
    min-height: 0 !important;
    margin: 0 !important;
    padding: 30px clamp(20px, 3vw, 44px) 52px !important;
}

.app-page-main h1,
.app-page-main .topbar h1,
.app-page-main .header h1 {
    color: var(--ui-ink);
    font-size: 26px;
    font-weight: 700;
}

.app-page-main .subtitle,
.app-page-main .topbar p,
.app-page-main .header p {
    color: var(--ui-muted);
}

.app-page-main .card,
.app-page-main .stat-card,
.app-page-main .quick-start,
.app-page-main .feature-card,
.app-page-main .panel,
.app-page-main .box,
.app-page-main .document-card {
    border: 1px solid var(--ui-line);
    border-radius: var(--ui-radius);
    background: #ffffff;
    box-shadow: 0 5px 18px rgba(34, 63, 107, 0.045);
}

.app-page-main .card h2,
.app-page-main .card h3,
.app-page-main .card h4,
.app-page-main .quick-start h2,
.app-page-main .stat-value {
    color: var(--ui-ink);
}

.app-page-main p,
.app-page-main .small,
.app-page-main .document-info,
.app-page-main .stat-description,
.app-page-main .setting-description {
    color: var(--ui-muted);
}

.app-page-main button,
.app-page-main .choose-btn,
.app-page-main .upload-btn,
.app-page-main .ask-btn,
.app-page-main .primary,
.app-page-main .file-button,
.app-page-main .save-button,
.app-page-main #sendButton,
.app-page-main .quick-buttons a:not(.secondary) {
    border-radius: 8px;
    background: var(--ui-accent);
    color: #ffffff;
}

.app-page-main button:hover,
.app-page-main .choose-btn:hover,
.app-page-main .upload-btn:hover,
.app-page-main .ask-btn:hover,
.app-page-main .primary:hover,
.app-page-main .save-button:hover,
.app-page-main #sendButton:hover {
    background: var(--ui-accent-hover);
}

.app-page-main input:not([type="checkbox"]):not([type="radio"]),
.app-page-main select,
.app-page-main textarea,
.app-page-main .input {
    border-color: #cad6e6;
    border-radius: 8px;
    background: #ffffff;
    color: var(--ui-ink);
}

.app-page-main input:focus,
.app-page-main select:focus,
.app-page-main textarea:focus,
.app-page-main .input:focus {
    border-color: #5b83cf;
    box-shadow: 0 0 0 3px rgba(49, 95, 189, 0.12);
}

.app-page-main input::placeholder,
.app-page-main textarea::placeholder {
    color: #77869b;
    opacity: 1;
}

.app-floating-ai {
    position: fixed;
    z-index: 45;
    right: 25px;
    bottom: 24px;
    display: inline-flex;
    align-items: center;
    gap: 9px;
    min-height: 48px;
    padding: 0 17px;
    border: 1px solid #254f9f;
    border-radius: 999px;
    background: #315fbd;
    color: #ffffff;
    box-shadow: 0 9px 24px rgba(41, 83, 157, 0.27);
    font-size: 13px;
    font-weight: 650;
    text-decoration: none;
    transition: transform 180ms ease, box-shadow 180ms ease, background-color 180ms ease;
}

.app-floating-ai:hover {
    transform: translateY(-2px);
    background: #244e9f;
    box-shadow: 0 13px 28px rgba(41, 83, 157, 0.32);
    color: #ffffff;
}

.app-floating-ai > span:first-child {
    color: #cfe0ff;
    font-size: 18px;
}

.app-sidebar-scrim {
    display: none;
}

.app-shell.is-collapsed .app-brand-name,
.app-shell.is-collapsed .app-nav-caption,
.app-shell.is-collapsed .app-nav-label,
.app-shell.is-collapsed .app-profile-copy,
.app-shell.is-collapsed .app-profile-more {
    display: none;
}

.app-shell.is-collapsed .app-brand {
    justify-content: center;
    margin-right: 0;
    margin-left: 0;
}

.app-shell.is-collapsed .app-nav-link {
    justify-content: center;
    padding: 0;
}

.app-shell.is-collapsed .app-nav-icon {
    flex-basis: 100%;
}

.app-shell.is-collapsed .app-nav-link::after {
    position: absolute;
    z-index: 100;
    top: 50%;
    left: calc(100% + 9px);
    padding: 7px 9px;
    transform: translateY(-50%);
    border: 1px solid #d9e2ef;
    border-radius: 6px;
    background: #ffffff;
    color: #22334d;
    box-shadow: 0 6px 16px rgba(26, 47, 79, 0.12);
    content: attr(data-label);
    font-size: 11px;
    opacity: 0;
    pointer-events: none;
    white-space: nowrap;
}

.app-shell.is-collapsed .app-nav-link:hover::after,
.app-shell.is-collapsed .app-nav-link:focus-visible::after {
    opacity: 1;
}

.app-shell.is-collapsed .app-profile-trigger {
    justify-content: center;
    padding-right: 0;
    padding-left: 0;
}

.dashboard-layout {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 16px;
    align-items: start;
}

.dashboard-widget {
    position: relative;
    min-width: 0;
    overflow: hidden;
    border: 1px solid var(--ui-line);
    border-radius: 12px;
    background: #ffffff;
    box-shadow: 0 6px 20px rgba(34, 63, 107, 0.05);
    animation: app-enter 380ms both;
    transition: border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.dashboard-widget:hover {
    border-color: #c3d3e9;
    box-shadow: 0 11px 27px rgba(34, 63, 107, 0.09);
}

.dashboard-widget.is-dragging {
    z-index: 3;
    transform: scale(0.99);
    border-color: #5f88d2;
    box-shadow: 0 18px 36px rgba(38, 83, 161, 0.2);
    opacity: 0.72;
}

.dashboard-widget.is-drop-target {
    outline: 2px dashed #5881cb;
    outline-offset: 3px;
}

.dashboard-widget.is-collapsed .widget-body {
    display: none;
}

.widget-toolbar {
    display: flex;
    align-items: center;
    gap: 9px;
    min-height: 46px;
    padding: 9px 15px;
    border-bottom: 1px solid #e8edf4;
    background: #ffffff;
}

.widget-toolbar h2,
.widget-toolbar h3 {
    flex: 1;
    margin: 0;
    color: #25344d;
    font-size: 13px;
    font-weight: 700;
}

.widget-drag-handle,
.widget-collapse-toggle {
    display: grid;
    flex: 0 0 28px;
    width: 28px;
    height: 28px;
    place-items: center;
    padding: 0;
    border: 1px solid transparent !important;
    border-radius: 6px !important;
    background: transparent !important;
    color: #7b8ca6 !important;
    font-size: 15px;
    cursor: grab;
}

.widget-collapse-toggle {
    cursor: pointer;
}

.widget-drag-handle:hover,
.widget-collapse-toggle:hover {
    border-color: #dce5f0 !important;
    background: #f1f5fb !important;
    color: #315fbd !important;
}

.widget-body {
    min-width: 0;
    padding: 16px;
}

.dashboard-widget[data-widget="welcome"] {
    grid-column: span 8;
    border-color: #2c579c;
    background: linear-gradient(115deg, #244b8d, #3769bd);
    color: #ffffff;
}

.dashboard-widget[data-widget="welcome"] .widget-toolbar {
    border-color: rgba(255, 255, 255, 0.13);
    background: rgba(17, 45, 90, 0.25);
}

.dashboard-widget[data-widget="welcome"] .widget-toolbar h2 {
    color: #dce9ff;
}

.dashboard-widget[data-widget="welcome"] .widget-body {
    padding: 25px 28px 27px;
}
.dashboard-widget[data-widget="welcome"] .welcome {
    margin: 0;
    padding: 0;
    border: 0;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
}

.dashboard-widget[data-widget="welcome"] h2 {
    margin: 0 0 9px;
    color: #ffffff;
    font-size: clamp(24px, 2.6vw, 33px);
    line-height: 1.18;
}

.dashboard-widget[data-widget="welcome"] p {
    max-width: 54ch;
    margin: 0;
    color: #d6e4fb;
    font-size: 14px;
}

.dashboard-hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 9px;
    margin-top: 20px;
}

.dashboard-hero-actions a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 38px;
    padding: 0 13px;
    border: 1px solid rgba(255, 255, 255, 0.24);
    border-radius: 7px;
    background: #ffffff;
    color: #244b8d;
    font-size: 12px;
    font-weight: 700;
    text-decoration: none;
    transition: transform 150ms ease, background-color 150ms ease;
}

.dashboard-hero-actions a:hover {
    transform: translateY(-2px);
    background: #edf4ff;
}

.dashboard-hero-actions a.secondary {
    background: rgba(255, 255, 255, 0.1);
    color: #ffffff;
}

.dashboard-hero-actions a.secondary:hover {
    background: rgba(255, 255, 255, 0.2);
}

.dashboard-widget[data-widget="assistant"] {
    grid-column: span 4;
    border-color: #d3e0f3;
    background: #eaf1fb;
}

.assistant-copy {
    margin: 0 0 15px;
    color: #405470;
    font-size: 13px;
}

.assistant-links {
    display: grid;
    gap: 8px;
}

.assistant-links a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 38px;
    padding: 0 11px;
    border: 1px solid #d2def0;
    border-radius: 7px;
    background: #ffffff;
    color: #294f91;
    font-size: 12px;
    font-weight: 650;
    text-decoration: none;
}

.assistant-links a:hover {
    border-color: #97b2df;
    background: #f8fbff;
}

.dashboard-widget[data-widget="stats"] {
    grid-column: span 12;
}

.dashboard-widget[data-widget="stats"] .widget-body {
    padding: 12px;
}

.dashboard-widget[data-widget="stats"] .stats {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
    margin: 0;
}

.dashboard-widget[data-widget="stats"] .stat-card {
    min-width: 0;
    padding: 13px 14px;
    border: 0;
    border-right: 1px solid #e6ebf2;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
}

.dashboard-widget[data-widget="stats"] .stat-card:last-child {
    border-right: 0;
}

.dashboard-widget[data-widget="stats"] .stat-card h4 {
    margin: 0 0 5px;
    color: #71819a;
    font-size: 11px;
    font-weight: 600;
}

.dashboard-widget[data-widget="stats"] .stat-value {
    font-size: 20px;
}

.dashboard-widget[data-widget="stats"] .stat-description {
    margin-top: 3px;
    font-size: 10px;
}

.dashboard-widget[data-widget="recent"] {
    grid-column: span 7;
}

.dashboard-widget[data-widget="tools"] {
    grid-column: span 5;
}

.dashboard-widget[data-widget="quick"] {
    grid-column: span 12;
}

.recent-document-list {
    display: grid;
    gap: 0;
}

.recent-document {
    display: grid;
    grid-template-columns: 34px minmax(0, 1fr) auto;
    align-items: center;
    gap: 11px;
    padding: 11px 0;
    border-bottom: 1px solid #e9eef5;
}

.recent-document:last-child {
    border-bottom: 0;
}

.recent-document-icon {
    display: grid;
    width: 34px;
    height: 38px;
    place-items: center;
    border: 1px solid #d8e4f6;
    border-radius: 7px;
    background: #edf3fc;
    color: #315fbd;
    font-size: 11px;
    font-weight: 750;
}

.recent-document-copy {
    min-width: 0;
}

.recent-document-copy strong {
    display: block;
    overflow: hidden;
    color: #25344d;
    font-size: 12px;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.recent-document-copy span {
    display: block;
    margin-top: 3px;
    color: #78869b;
    font-size: 10px;
}

.recent-document-actions {
    display: flex;
    gap: 5px;
}

.recent-document-actions a {
    padding: 6px 8px;
    border: 1px solid #d8e2f0;
    border-radius: 6px;
    color: #315fbd;
    font-size: 10px;
    font-weight: 650;
    text-decoration: none;
    white-space: nowrap;
}

.recent-document-actions a:hover {
    border-color: #a9bfdf;
    background: #f0f5fc;
}

.recent-empty {
    padding: 17px 4px;
    color: var(--ui-muted);
    font-size: 12px;
}

.dashboard-widget[data-widget="tools"] .features {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
    margin: 0;
}

.dashboard-widget[data-widget="tools"] .card {
    min-width: 0;
    padding: 12px;
    border: 1px solid #e4eaf2;
    border-radius: 8px;
    background: #ffffff;
    box-shadow: none;
}

.dashboard-widget[data-widget="tools"] .card-icon {
    display: none;
}

.dashboard-widget[data-widget="tools"] .card h3 {
    margin: 0 0 5px;
    font-size: 12px;
}

.dashboard-widget[data-widget="tools"] .card p {
    min-height: 0;
    margin-bottom: 9px;
    font-size: 10px;
    line-height: 1.45;
}

.dashboard-widget[data-widget="tools"] .card a {
    font-size: 10px;
}

.dashboard-widget[data-widget="quick"] .quick-start {
    padding: 0;
    border: 0;
    border-radius: 0;
    box-shadow: none;
}

.dashboard-widget[data-widget="quick"] .quick-start h2 {
    margin: 0 0 4px;
    font-size: 14px;
}

.dashboard-widget[data-widget="quick"] .quick-start p {
    margin-bottom: 12px;
    font-size: 12px;
}

.dashboard-widget[data-widget="quick"] .quick-buttons a {
    min-height: 36px;
    padding: 8px 12px;
    border-radius: 7px;
    font-size: 11px;
}

.dashboard-heading-row {
    margin: 0 0 18px;
    padding: 0;
    border: 0;
    background: transparent;
}

.dashboard-heading-row h1 {
    margin: 0;
}

.dashboard-heading-row p {
    margin: 4px 0 0;
    font-size: 13px;
}

.app-page-main .section-title {
    margin: 0;
}

.app-page-main .empty,
.app-page-main .latest-box,
.app-page-main .answer-box,
.app-page-main .answer,
.app-page-main .source-item {
    border-color: #dce6f2;
    border-radius: 9px;
    background: #f3f7fc;
    color: var(--ui-ink);
}

.app-page-main .answer,
.app-page-main .answer-box {
    border-left-color: var(--ui-accent);
}

.app-page-main .upload-area {
    border: 1px dashed #86a5d8;
    border-radius: 10px;
    background: #f4f8fe;
    transition: border-color 160ms ease, background-color 160ms ease;
}

.app-page-main .upload-area.is-dragging {
    border-color: #315fbd;
    background: #e8f0fc;
}

.app-page-main .backend-status {
    border: 1px solid #dfe7f1;
    border-radius: 7px;
    background: #f1f5fa;
    color: #50627c;
}

.documents-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 13px;
}

.documents-toolbar input {
    width: min(100%, 340px);
    min-height: 38px;
    padding: 8px 11px;
}

.documents-toolbar .documents-result-count {
    color: var(--ui-muted);
    font-size: 11px;
}

.app-page-main .documents-grid {
    grid-template-columns: repeat(auto-fill, minmax(min(250px, 100%), 1fr));
    gap: 12px;
}

.app-page-main .document-card {
    padding: 16px;
    transition: transform 170ms ease, border-color 170ms ease, box-shadow 170ms ease;
}

.app-page-main .document-card:hover {
    transform: translateY(-2px);
    border-color: #c0d1e8;
    box-shadow: 0 10px 25px rgba(40, 71, 119, 0.1);
}

.app-page-main .document-icon {
    display: grid;
    width: 38px;
    height: 42px;
    place-items: center;
    border: 1px solid #d9e5f4;
    border-radius: 7px;
    background: #edf3fc;
    color: #315fbd;
    font-size: 15px;
}

.app-page-main .document-name {
    margin-top: 9px;
    color: #20314b;
    font-size: 13px;
}

.app-page-main .document-info {
    font-size: 11px;
}

.app-page-main .document-actions {
    flex-wrap: wrap;
}

.app-page-main .delete-btn {
    border: 1px solid #ead9d9;
    background: #fbf0f0;
    color: #913f48;
}

.app-page-main .delete-btn:hover {
    background: #f6e2e3;
}

.app-page-main .progress-container {
    height: 7px;
    border-radius: 99px;
    background: #e7edf5;
}

.app-page-main .progress-bar {
    border-radius: inherit;
    background: #4c78cb;
}

.app-page-main .documents-search-label,
.app-page-main .documents-filter-label {
    display: grid;
    flex: 1 1 220px;
    gap: 5px;
    color: #52637c;
    font-size: 11px;
    font-weight: 650;
}

.app-page-main .documents-search,
.app-page-main .documents-filter {
    width: 100%;
    min-height: 38px;
    padding: 8px 10px;
    font-size: 12px;
}

.app-page-main .document-text-status {
    display: inline-flex;
    align-items: center;
    min-height: 21px;
    margin: 7px 0;
    padding: 3px 7px;
    border: 1px solid #cfe4d8;
    border-radius: 99px;
    background: #edf7f1;
    color: #286344;
    font-size: 10px;
    font-weight: 650;
}

.app-page-main .document-text-status[data-state="empty"] {
    border-color: #eadfce;
    background: #faf5ec;
    color: #785d35;
}

.app-page-main .document-view-button {
    border: 1px solid #d8e2f0 !important;
    background: #ffffff !important;
    color: #4e6381 !important;
}

.app-page-main .document-view-button:hover {
    border-color: #aec2e0 !important;
    background: #f2f6fc !important;
    color: #315fbd !important;
}

.app-page-main .document-card.details-open {
    border-color: #afc4e2;
}

.app-page-main .document-card .document-info[hidden] {
    display: none;
}

.app-page-main .container {
    display: grid;
    grid-template-columns: minmax(220px, 0.72fr) minmax(320px, 1.5fr) minmax(220px, 0.85fr);
    align-items: start;
    gap: 14px;
    width: 100%;
    max-width: 1500px;
    margin: 0;
    padding: 0;
}

.app-page-main > .header {
    grid-column: 1 / -1;
    min-height: 0;
    margin: 0 0 14px;
    padding: 0 0 14px;
    border: 0;
    border-bottom: 1px solid var(--ui-line);
    background: transparent;
    box-shadow: none;
}

.app-page-main > .header h1 {
    margin: 0;
    font-size: 25px;
}

.app-page-main .container > .card {
    min-width: 0;
    margin: 0;
    padding: 18px;
}

.app-page-main .container > .card:first-of-type {
    grid-column: 1;
    grid-row: 2;
}

.app-page-main .container > .card:nth-of-type(2) {
    grid-column: 2;
    grid-row: 2;
}

.app-page-main .container > #sourcesSection {
    grid-column: 3;
    grid-row: 2;
}

.app-page-main .container > .card h2 {
    font-size: 15px;
}

.app-page-main .container > .card textarea {
    min-height: 150px;
    resize: vertical;
}

.app-page-main .answer-box {
    min-height: 270px;
    padding: 22px;
    border: 1px solid #dce6f2;
    border-left: 3px solid #4775c5;
    background: #fbfcfe;
    line-height: 1.72;
}

.app-page-main .answer-box h1,
.app-page-main .answer-box h2,
.app-page-main .answer-box h3 {
    margin: 1em 0 0.45em;
    font-size: 1.12em;
}

.app-page-main .source-item {
    border: 1px solid #dce6f2;
    background: #f6f9fd;
    font-size: 12px;
}

.app-page-main .loading {
    color: #315fbd;
}

.answer-heading-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.answer-heading-row h2 {
    margin-bottom: 0;
}

.app-page-main .answer-copy-button {
    flex: 0 0 auto;
    padding: 7px 10px;
    border: 1px solid #d4dfed !important;
    border-radius: 6px !important;
    background: #ffffff !important;
    color: #315fbd !important;
    font-size: 10px;
}

.app-page-main .answer-copy-button:hover:not(:disabled) {
    border-color: #a8bfdf !important;
    background: #edf3fc !important;
}

.app-page-main .answer-copy-button:disabled {
    color: #8b98aa !important;
    cursor: not-allowed;
    opacity: 0.65;
}

.app-page-main .message-tools {
    opacity: 0;
    transition: opacity 140ms ease;
}

.app-page-main .message.bot:hover .message-tools,
.app-page-main .message.bot:focus-within .message-tools {
    opacity: 1;
}

.app-page-main .message-copy {
    padding: 4px 7px;
    border: 1px solid transparent !important;
    border-radius: 5px !important;
    background: transparent !important;
    color: #6b7b91 !important;
    font-size: 10px;
}

.app-page-main .message-copy:hover {
    border-color: #d8e2ef !important;
    background: #f0f4fa !important;
    color: #315fbd !important;
}

.history-page-header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 21px;
}

.history-page-header h1 {
    margin: 0;
}

.history-page-header .subtitle {
    margin: 5px 0 0;
}

.history-library-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 37px;
    padding: 0 12px;
    border: 1px solid #d2deee;
    border-radius: 7px;
    background: #ffffff;
    color: #315fbd;
    font-size: 11px;
    font-weight: 650;
    text-decoration: none;
    white-space: nowrap;
}

.history-library-link:hover {
    border-color: #a8bfdf;
    background: #f1f5fb;
}

.history-panel {
    max-width: 900px;
    padding: 20px 23px;
    border: 1px solid var(--ui-line);
    border-radius: 12px;
    background: #ffffff;
    box-shadow: 0 6px 20px rgba(34, 63, 107, 0.05);
}

.history-controls {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    gap: 6px 14px;
    padding-bottom: 17px;
    border-bottom: 1px solid #e6ecf4;
}

.history-controls label {
    grid-column: 1;
    color: #50627c;
    font-size: 11px;
    font-weight: 650;
}

.history-controls input {
    grid-column: 1;
    min-height: 38px;
    padding: 8px 10px;
    font-size: 12px;
}

.activity-status {
    grid-column: 2;
    grid-row: 2;
    color: #708098;
    font-size: 10px;
}

.activity-timeline {
    padding-top: 5px;
}

.activity-day {
    padding: 18px 0 4px;
}

.activity-day h2 {
    margin: 0 0 11px;
    color: #445671;
    font-size: 12px;
    font-weight: 700;
}

.activity-list {
    display: grid;
    gap: 0;
    margin: 0;
    padding: 0;
    list-style: none;
}

.activity-item {
    position: relative;
    display: grid;
    grid-template-columns: 15px minmax(0, 1fr) auto;
    align-items: start;
    gap: 12px;
    min-height: 65px;
    padding: 0 0 17px;
}

.activity-item:not(:last-child)::before {
    position: absolute;
    top: 13px;
    bottom: 0;
    left: 5px;
    width: 1px;
    background: #dbe5f1;
    content: "";
}

.activity-marker {
    position: relative;
    z-index: 1;
    width: 11px;
    height: 11px;
    margin-top: 3px;
    border: 2px solid #7898cc;
    border-radius: 50%;
    background: #ffffff;
}

.activity-body {
    min-width: 0;
}

.activity-body strong {
    display: block;
    overflow-wrap: anywhere;
    color: #263650;
    font-size: 12px;
}

.activity-body p {
    margin: 3px 0 0;
    color: #74839a;
    font-size: 10px;
}

.activity-side {
    display: flex;
    align-items: center;
    gap: 11px;
}

.activity-side time {
    color: #78879c;
    font-size: 10px;
    white-space: nowrap;
}

.activity-side a {
    color: #315fbd;
    font-size: 10px;
    font-weight: 650;
    text-decoration: none;
    white-space: nowrap;
}

.activity-empty {
    padding: 23px 5px;
    color: #6c7c93;
    font-size: 12px;
}

.history-note {
    margin: 10px 0 0;
    padding-top: 13px;
    border-top: 1px solid #e8edf4;
    color: #718098;
    font-size: 10px;
}

.tool-launcher-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 13px;
}

.tool-launcher {
    display: grid;
    grid-template-columns: 42px minmax(0, 1fr) auto 16px;
    align-items: center;
    gap: 13px;
    min-width: 0;
    min-height: 112px;
    padding: 17px;
    border: 1px solid #dce5f0;
    border-radius: 11px;
    background: #ffffff;
    box-shadow: 0 5px 18px rgba(34, 63, 107, 0.04);
    color: #25344d;
    text-decoration: none;
    transition: transform 170ms ease, border-color 170ms ease, box-shadow 170ms ease;
}

.tool-launcher:hover {
    transform: translateY(-2px);
    border-color: #b8cbe6;
    box-shadow: 0 12px 26px rgba(34, 63, 107, 0.09);
}

.tool-launcher-icon {
    display: grid;
    width: 42px;
    height: 42px;
    place-items: center;
    border-radius: 9px;
    background: #eaf0fa;
    color: #315fbd;
    font-size: 18px;
}

.tool-launcher-copy {
    display: grid;
    gap: 5px;
}

.tool-launcher-copy strong {
    color: #25344d;
    font-size: 13px;
}

.tool-launcher-copy span {
    color: #687993;
    font-size: 11px;
    line-height: 1.45;
}

.tool-launcher-status {
    padding: 4px 7px;
    border: 1px solid #d5e2f3;
    border-radius: 99px;
    background: #f2f6fc;
    color: #4f6d9e;
    font-size: 9px;
    font-weight: 650;
    white-space: nowrap;
}

.tool-launcher-arrow {
    color: #7687a0;
    font-size: 13px;
}

.hero-visual {
    position: relative;
    min-width: 0;
    aspect-ratio: 1.08;
    margin: 0;
    overflow: hidden;
    border: 1px solid #d4deeb;
    border-radius: 12px;
    background: #dce7f4;
    box-shadow: 0 17px 38px rgba(36, 66, 111, 0.12);
}

.hero-visual img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-visual figcaption {
    position: absolute;
    right: 15px;
    bottom: 15px;
    left: 15px;
    display: grid;
    gap: 5px;
    padding: 14px 16px;
    border: 1px solid rgba(255, 255, 255, 0.55);
    border-radius: 8px;
    background: rgba(20, 39, 68, 0.86);
    color: #ffffff;
    backdrop-filter: blur(8px);
}

.hero-visual figcaption span {
    color: #cad9f2;
    font-size: 9px;
    font-weight: 700;
    letter-spacing: 1px;
}

.hero-visual figcaption strong {
    color: #ffffff;
    font-size: 13px;
}

.landing-workflow {
    display: grid;
    grid-template-columns: minmax(210px, 0.75fr) minmax(0, 1.8fr);
    gap: 34px;
    max-width: 1240px;
    margin: 0 auto;
    padding: 34px 7% 58px;
    border-top: 1px solid #e0e7f0;
}

.landing-workflow-heading h2 {
    max-width: 18ch;
    margin: 0;
    color: #1c2b43;
    font-size: 21px;
}

.landing-workflow-heading p {
    margin: 7px 0 0;
    color: #697991;
    font-size: 12px;
}

.landing-workflow-links {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
}

.landing-workflow-links a {
    position: relative;
    display: grid;
    align-content: start;
    gap: 7px;
    min-height: 108px;
    padding: 13px;
    border: 1px solid #dce5f0;
    border-radius: 8px;
    background: #ffffff;
    color: #263650;
    text-decoration: none;
    transition: transform 150ms ease, border-color 150ms ease, box-shadow 150ms ease;
}

.landing-workflow-links a:hover {
    transform: translateY(-2px);
    border-color: #b7c9e2;
    box-shadow: 0 9px 20px rgba(34, 63, 107, 0.08);
}

.landing-workflow-links a > span {
    color: #416ab1;
    font-size: 10px;
    font-weight: 700;
}

.landing-workflow-links strong {
    color: #243650;
    font-size: 12px;
}

.landing-workflow-links small {
    max-width: 26ch;
    color: #6c7b92;
    font-size: 10px;
    line-height: 1.45;
}

.landing-workflow-links b {
    position: absolute;
    top: 12px;
    right: 13px;
    color: #7385a0;
    font-size: 12px;
}

.settings-account {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    max-width: 1040px;
    margin: 0 0 17px;
    padding: 16px 19px;
    border: 1px solid #dce5f0;
    border-radius: 10px;
    background: #ffffff;
}

.settings-account h2 {
    margin: 0 0 4px;
    color: #25344d;
    font-size: 13px;
}

.settings-account p {
    margin: 0;
    color: #718098;
    font-size: 10px;
}

.settings-account-identity {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
}

.settings-account-avatar {
    display: grid;
    flex: 0 0 35px;
    width: 35px;
    height: 35px;
    place-items: center;
    border: 1px solid #cddcf0;
    border-radius: 50%;
    background: #eaf0fa;
    color: #315fbd;
    font-size: 11px;
    font-weight: 700;
}

.settings-account-copy {
    display: grid;
    gap: 2px;
    min-width: 0;
}

.settings-account-copy strong,
.settings-account-copy span {
    overflow: hidden;
    max-width: 36ch;
    color: #2a3a54;
    font-size: 11px;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.settings-account-copy span {
    color: #718098;
    font-size: 10px;
}

html[data-dark-mode="on"] .settings-account {
    border-color: #2b3a52 !important;
    background: #17243a !important;
}

html[data-dark-mode="on"] .settings-account h2,
html[data-dark-mode="on"] .settings-account-copy strong {
    color: #e7edf7 !important;
}

html[data-dark-mode="on"] .settings-account p,
html[data-dark-mode="on"] .settings-account-copy span {
    color: #aab8cc !important;
}

html[data-dark-mode="on"] .history-panel,
html[data-dark-mode="on"] .tool-launcher {
    border-color: #2b3a52 !important;
    background: #17243a !important;
}

html[data-dark-mode="on"] .activity-body strong,
html[data-dark-mode="on"] .tool-launcher-copy strong {
    color: #e7edf7 !important;
}

html[data-dark-mode="on"] .history-note,
html[data-dark-mode="on"] .activity-body p,
html[data-dark-mode="on"] .activity-side time,
html[data-dark-mode="on"] .tool-launcher-copy span {
    color: #aab8cc !important;
}

.app-page-main .main:has(#chatContainer) {
    height: calc(100vh - 68px);
    min-height: 0;
    padding: 0 !important;
    overflow: hidden;
}

.app-shell[data-page="chatbot.html"] .app-page-main {
    display: flex;
    flex-direction: column;
    height: calc(100vh - 68px);
    padding: 0 !important;
    overflow: hidden;
}

.app-shell[data-page="chatbot.html"] .app-page-main > .header {
    min-height: 64px;
    margin: 0;
    padding: 10px 24px;
    border-bottom: 1px solid var(--ui-line);
    background: #ffffff;
}

.app-shell[data-page="chatbot.html"] .chat-container {
    flex: 1;
    width: 100%;
    max-width: 900px;
    align-self: center;
    background: transparent;
}

.app-shell[data-page="chatbot.html"] .input-area {
    width: 100%;
    border-top: 1px solid var(--ui-line);
    background: #ffffff;
}

.app-shell[data-page="chatbot.html"] .input-box {
    max-width: 900px;
}

.app-shell[data-page="chatbot.html"] .memory-bar {
    background: #f0f5fc;
    color: #52647d;
}

.app-shell[data-page="chatbot.html"] .bot .bubble {
    border: 1px solid #dce5f0;
    background: #ffffff;
    color: #23334d;
}

.app-shell[data-page="chatbot.html"] .user .bubble {
    background: #315fbd;
    color: #ffffff;
}

.app-shell[data-page="chatbot.html"] .message-tools {
    display: flex;
    justify-content: flex-end;
    margin-top: 4px;
}

.app-shell[data-page="chatbot.html"] .message-copy {
    border: 0;
    background: transparent;
    color: #6b7b91;
    font-size: 10px;
    cursor: pointer;
}
.widget-move {
    display: grid;
    flex: 0 0 26px;
    width: 26px;
    height: 26px;
    place-items: center;
    padding: 0;
    border: 1px solid transparent !important;
    border-radius: 6px !important;
    background: transparent !important;
    color: #71819a !important;
    font-size: 12px;
    cursor: pointer;
}
.widget-move:hover {
    border-color: #dce5f0 !important;
    background: #f1f5fb !important;
    color: #315fbd !important;
}
.dashboard-widget[data-widget="tools"] .dashboard-launcher {
    display: grid;
    grid-template-columns: 30px minmax(0, 1fr) auto;
    align-items: center;
    gap: 8px;
    min-width: 0;
    padding: 10px;
    border: 1px solid #e1e8f2;
    border-radius: 8px;
    background: #ffffff;
    color: #526681;
    text-decoration: none;
    transition: border-color 150ms ease, background-color 150ms ease, transform 150ms ease;
}
.dashboard-widget[data-widget="tools"] .dashboard-launcher:hover {
    transform: translateY(-1px);
    border-color: #b8cbe6;
    background: #f5f8fd;
}
.dashboard-widget[data-widget="tools"] .launcher-icon {
    display: grid;
    width: 30px;
    height: 30px;
    place-items: center;
    border-radius: 7px;
    background: #eaf0fa;
    color: #315fbd;
    font-size: 14px;
}
.dashboard-widget[data-widget="tools"] .dashboard-launcher strong,
.dashboard-widget[data-widget="tools"] .dashboard-launcher small {
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.dashboard-widget[data-widget="tools"] .dashboard-launcher strong {
    color: #2a3b57;
    font-size: 11px;
}
.dashboard-widget[data-widget="tools"] .dashboard-launcher small {
    margin-top: 2px;
    color: #72819a;
    font-size: 9px;
}
.widget-footer-link {
    display: inline-block;
    margin-top: 11px;
    color: #315fbd;
    font-size: 11px;
    font-weight: 650;
    text-decoration: none;
}

.app-shell[data-page="chatbot.html"] .message-copy:hover {
    color: #315fbd;
}

.app-shell[data-page="chatbot.html"] .message-label {
    color: #71819a;
}

.app-page-main .setting-row {
    min-height: 69px;
    border-color: #e8edf4;
}

.app-page-main .card-header {
    border-color: #e7edf5;
}

.app-page-main .setting-title {
    color: #25344d;
}

.app-page-main .switch input:checked + .slider {
    background: #315fbd;
}

.app-page-main .nav.active {
    background: #315fbd;
}

.app-page-main .grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 13px;
}

.app-page-main .layout {
    display: block;
}

.app-shell [data-dark-mode="on"] {
    color: inherit;
}

html[data-dark-mode="on"] .app-shell {
    background: #101a2b;
}

html[data-dark-mode="on"] .app-topbar,
html[data-dark-mode="on"] .app-profile-links,
html[data-dark-mode="on"] .app-search-results,
html[data-dark-mode="on"] .widget-toolbar,
html[data-dark-mode="on"] .dashboard-widget,
html[data-dark-mode="on"] .app-page-main .card,
html[data-dark-mode="on"] .app-page-main .stat-card,
html[data-dark-mode="on"] .app-page-main .quick-start,
html[data-dark-mode="on"] .app-page-main .feature-card,
html[data-dark-mode="on"] .app-page-main .document-card {
    border-color: #2b3a52 !important;
    background: #17243a !important;
    color: #e7edf7 !important;
}

html[data-dark-mode="on"] .app-topbar-brand,
html[data-dark-mode="on"] .app-profile-links a,
html[data-dark-mode="on"] .app-profile-links button,
html[data-dark-mode="on"] .app-search-result,
html[data-dark-mode="on"] .widget-toolbar h2,
html[data-dark-mode="on"] .widget-toolbar h3,
html[data-dark-mode="on"] .app-page-main h1,
html[data-dark-mode="on"] .app-page-main h2,
html[data-dark-mode="on"] .app-page-main h3,
html[data-dark-mode="on"] .app-page-main h4,
html[data-dark-mode="on"] .app-page-main .setting-title,
html[data-dark-mode="on"] .app-page-main .stat-value,
html[data-dark-mode="on"] .recent-document-copy strong {
    color: #e7edf7 !important;
}

html[data-dark-mode="on"] .app-command-search,
html[data-dark-mode="on"] .assistant-links a,
html[data-dark-mode="on"] .recent-document-icon,
html[data-dark-mode="on"] .app-page-main .upload-area,
html[data-dark-mode="on"] .app-page-main .answer-box,
html[data-dark-mode="on"] .app-page-main .source-item,
html[data-dark-mode="on"] .app-page-main .latest-box,
html[data-dark-mode="on"] .app-page-main .memory-bar {
    border-color: #334763 !important;
    background: #1c2c45 !important;
    color: #dce6f3 !important;
}

html[data-dark-mode="on"] .app-page-main input:not([type="checkbox"]):not([type="radio"]),
html[data-dark-mode="on"] .app-page-main select,
html[data-dark-mode="on"] .app-page-main textarea,
html[data-dark-mode="on"] .app-command-search input {
    border-color: #435571 !important;
    background: #101a2b !important;
    color: #e7edf7 !important;
}

html[data-dark-mode="on"] .app-page-main p,
html[data-dark-mode="on"] .app-page-main .subtitle,
html[data-dark-mode="on"] .app-page-main .small,
html[data-dark-mode="on"] .app-page-main .setting-description,
html[data-dark-mode="on"] .app-page-main .document-info {
    color: #aab8cc !important;
}

body:has(.login-card),
body:has(#signupForm),
body:has(#forgotPasswordForm),
body:has(#resetPasswordForm) {
    display: grid;
    grid-template-columns: minmax(0, 1.02fr) minmax(390px, 0.98fr);
    align-items: stretch;
    min-height: 100vh;
    padding: 0;
    background: #f4f7fc;
}

.auth-story {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 100vh;
    padding: clamp(36px, 7vw, 92px);
    overflow: hidden;
    background: #1a3766;
    color: #ffffff;
}

.auth-story::after {
    position: absolute;
    right: -130px;
    bottom: -170px;
    width: 430px;
    height: 430px;
    border: 1px solid rgba(203, 221, 252, 0.16);
    border-radius: 50%;
    box-shadow: 0 0 0 32px rgba(203, 221, 252, 0.045), 0 0 0 68px rgba(203, 221, 252, 0.035);
    content: "";
    pointer-events: none;
}

.auth-story-brand {
    position: relative;
    z-index: 1;
    display: inline-flex;
    align-items: center;
    gap: 11px;
    color: #ffffff;
    font-size: 15px;
    font-weight: 700;
    text-decoration: none;
}

.auth-story-copy {
    position: relative;
    z-index: 1;
    max-width: 520px;
    margin: auto 0;
    padding: 60px 0;
}

.auth-story-copy h2 {
    margin: 0 0 17px;
    color: #ffffff;
    font-size: clamp(34px, 4vw, 56px);
    line-height: 1.06;
}

.auth-story-copy p {
    max-width: 48ch;
    margin: 0;
    color: #c9d8f1;
    font-size: 15px;
    line-height: 1.7;
}

.auth-story-points {
    display: grid;
    gap: 13px;
    margin-top: 30px;
    color: #e1eafa;
    font-size: 13px;
}

.auth-story-points span {
    display: flex;
    align-items: center;
    gap: 10px;
}

.auth-story-points span::before {
    display: grid;
    width: 20px;
    height: 20px;
    place-items: center;
    border: 1px solid rgba(205, 224, 255, 0.4);
    border-radius: 50%;
    color: #caddff;
    content: "✓";
    font-size: 11px;
}

.auth-story-foot {
    position: relative;
    z-index: 1;
    color: #aebfda;
    font-size: 11px;
}

.login-container,
body:has(#signupForm) > .container,
body:has(#forgotPasswordForm) > .container,
body:has(#resetPasswordForm) > .container {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    max-width: none;
    min-height: 100vh;
    margin: 0;
    padding: clamp(24px, 6vw, 84px);
}

.login-card,
body:has(#signupForm) .container > .card,
body:has(#forgotPasswordForm) .container > .card,
body:has(#resetPasswordForm) .container > .card {
    width: 100%;
    max-width: 430px;
    padding: 0;
    border: 0;
    border-radius: 0;
    border-top: 0;
    background: transparent;
    box-shadow: none;
}

.login-card .logo,
body:has(#signupForm) .logo,
body:has(#forgotPasswordForm) .logo,
body:has(#resetPasswordForm) .logo {
    margin-bottom: 27px;
    color: #315fbd;
    font-size: 14px;
    text-align: left;
}

.login-card .title,
body:has(#signupForm) h1,
body:has(#forgotPasswordForm) h1,
body:has(#resetPasswordForm) h1 {
    color: #192941;
    font-size: 30px;
    text-align: left;
}

.login-card .subtitle,
body:has(#signupForm) .subtitle,
body:has(#forgotPasswordForm) .subtitle,
body:has(#resetPasswordForm) .subtitle {
    margin: 9px 0 25px;
    color: #64748b;
    text-align: left;
}

body:has(#signupForm) .container,
body:has(#forgotPasswordForm) .container,
body:has(#resetPasswordForm) .container {
    max-width: none;
}

.login-card .form-group,
body:has(#signupForm) .form-group,
body:has(#forgotPasswordForm) .form-group,
body:has(#resetPasswordForm) .form-group {
    margin-bottom: 16px;
}

.login-card label,
body:has(#signupForm) label,
body:has(#forgotPasswordForm) label,
body:has(#resetPasswordForm) label {
    color: #263650;
    font-size: 12px;
}

.login-card input:not([type="checkbox"]),
body:has(#signupForm) input:not([type="checkbox"]),
body:has(#forgotPasswordForm) input:not([type="checkbox"]),
body:has(#resetPasswordForm) input:not([type="checkbox"]) {
    min-height: 45px;
    padding: 11px 13px;
    border-color: #cbd6e5;
    border-radius: 7px;
    background: #ffffff;
    color: #17243a;
    font-size: 13px;
}

.login-button,
.signup-button,
body:has(#forgotPasswordForm) form button,
body:has(#resetPasswordForm) form button {
    min-height: 45px;
    margin-top: 5px;
    border-radius: 7px;
    background: #315fbd;
    color: #ffffff;
    font-size: 13px;
}

.login-button:hover,
.signup-button:hover,
body:has(#forgotPasswordForm) form button:hover,
body:has(#resetPasswordForm) form button:hover {
    background: #244e9f;
}

.login-link,
.signup-link,
.back-link {
    color: #61718a;
}

.login-link a,
.signup-link a,
.back-link a {
    color: #315fbd;
}

.message.error {
    background: #fff0ef;
    color: #913f48;
}

.message.success {
    background: #e9f4ed;
    color: #286344;
}

.password-strength {
    height: 4px;
    margin-top: 8px;
    overflow: hidden;
    border-radius: 99px;
    background: #e1e8f1;
}

.password-strength span {
    display: block;
    width: 0;
    height: 100%;
    border-radius: inherit;
    background: #315fbd;
    transition: width 160ms ease, background-color 160ms ease;
}

.password-strength-label {
    display: block;
    min-height: 16px;
    margin-top: 4px;
    color: #697a93;
    font-size: 10px;
}

.app-enter {
    animation: app-enter 360ms both;
}

@keyframes app-enter {
    from { opacity: 0; transform: translateY(7px); }
    to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 1100px) {
    .dashboard-widget[data-widget="welcome"] { grid-column: span 7; }
    .dashboard-widget[data-widget="assistant"] { grid-column: span 5; }
    .dashboard-widget[data-widget="recent"] { grid-column: span 7; }
    .dashboard-widget[data-widget="tools"] { grid-column: span 5; }
    .app-page-main .container {
        grid-template-columns: minmax(210px, 0.7fr) minmax(300px, 1.3fr);
    }
    .app-page-main .container > #sourcesSection {
        grid-column: 1 / -1;
        grid-row: auto;
    }

    .landing-workflow {
        grid-template-columns: 1fr;
        gap: 18px;
    }
}

@media (max-width: 820px) {
    .app-shell {
        display: block;
        min-height: 100vh;
    }

    .app-shell.is-collapsed {
        --rail-width: 254px;
    }

    .app-sidebar {
        position: fixed;
        z-index: 120;
        inset: 0 auto 0 0;
        width: min(84vw, 285px);
        height: 100dvh;
        padding: 22px 13px max(16px, env(safe-area-inset-bottom));
        transform: translateX(-102%);
        transition: transform 220ms ease;
        box-shadow: 12px 0 34px rgba(15, 31, 57, 0.2);
    }

    .app-shell.nav-open .app-sidebar {
        transform: translateX(0);
    }

    .app-sidebar-scrim {
        position: fixed;
        z-index: 110;
        inset: 0;
        display: block;
        border: 0;
        background: rgba(14, 26, 44, 0.42);
        opacity: 0;
        pointer-events: none;
        transition: opacity 180ms ease;
    }

    .app-shell.nav-open .app-sidebar-scrim {
        opacity: 1;
        pointer-events: auto;
    }

    .app-topbar {
        min-height: 62px;
        gap: 8px;
        padding: 0 14px;
    }

    .app-menu-toggle {
        display: grid;
    }

    .app-collapse-toggle {
        display: none;
    }

    .app-topbar-brand {
        display: none;
    }

    .app-command-search {
        width: auto;
        flex: 1;
        margin: 0 3px;
    }

    .app-page-main,
    .app-shell .layout > main {
        padding: 24px 18px 88px !important;
    }

    .app-floating-ai {
        right: 16px;
        bottom: 17px;
    }

    .app-shell[data-page="chatbot.html"] .app-page-main {
        height: calc(100dvh - 62px);
        padding: 0 !important;
    }

    .app-page-main .container {
        grid-template-columns: minmax(200px, 0.75fr) minmax(0, 1.25fr);
    }

    .app-shell.is-collapsed .app-brand-name,
    .app-shell.is-collapsed .app-nav-caption,
    .app-shell.is-collapsed .app-nav-label,
    .app-shell.is-collapsed .app-profile-copy,
    .app-shell.is-collapsed .app-profile-more {
        display: initial;
    }
}

@media (max-width: 620px) {
    .dashboard-layout {
        grid-template-columns: minmax(0, 1fr);
        gap: 12px;
    }

    .dashboard-widget[data-widget="welcome"],
    .dashboard-widget[data-widget="assistant"],
    .dashboard-widget[data-widget="stats"],
    .dashboard-widget[data-widget="recent"],
    .dashboard-widget[data-widget="tools"],
    .dashboard-widget[data-widget="quick"] {
        grid-column: 1;
    }

    .dashboard-widget[data-widget="welcome"] .widget-body {
        padding: 21px 19px;
    }

    .dashboard-widget[data-widget="welcome"] h2 {
        font-size: 25px;
    }

    .dashboard-widget[data-widget="stats"] .stats {
        grid-template-columns: minmax(0, 1fr);
        gap: 0;
    }

    .dashboard-widget[data-widget="stats"] .stat-card {
        display: grid;
        grid-template-columns: 1fr auto;
        gap: 3px 10px;
        padding: 10px 9px;
        border-right: 0;
        border-bottom: 1px solid #e8edf4;
    }

    .dashboard-widget[data-widget="stats"] .stat-card:last-child {
        border-bottom: 0;
    }

    .dashboard-widget[data-widget="stats"] .stat-card h4 {
        grid-column: 1;
        grid-row: 1;
        align-self: end;
    }

    .dashboard-widget[data-widget="stats"] .stat-value {
        grid-column: 2;
        grid-row: 1 / span 2;
        align-self: center;
        max-width: 45vw;
        text-align: right;
    }

    .dashboard-widget[data-widget="stats"] .stat-description {
        grid-column: 1;
        grid-row: 2;
    }

    .dashboard-widget[data-widget="tools"] .features {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .recent-document {
        grid-template-columns: 32px minmax(0, 1fr);
    }

    .recent-document-actions {
        grid-column: 2;
    }

    .app-page-main .container {
        grid-template-columns: minmax(0, 1fr);
    }

    .tool-launcher-grid {
        grid-template-columns: minmax(0, 1fr);
    }

    .tool-launcher {
        grid-template-columns: 38px minmax(0, 1fr) auto 12px;
        min-height: 92px;
        gap: 9px;
        padding: 13px;
    }

    .tool-launcher-icon {
        width: 38px;
        height: 38px;
    }

    .activity-item {
        grid-template-columns: 15px minmax(0, 1fr);
        gap: 9px;
    }

    .activity-side {
        grid-column: 2;
        justify-content: space-between;
        margin-top: 4px;
    }

    .history-page-header {
        align-items: flex-start;
        flex-direction: column;
        gap: 12px;
    }

    .history-panel {
        padding: 16px;
    }

    .activity-status {
        grid-column: 1 / -1;
        grid-row: auto;
    }

    .app-page-main > .header,
    .app-page-main .container > .card:first-of-type,
    .app-page-main .container > .card:nth-of-type(2),
    .app-page-main .container > #sourcesSection {
        grid-column: 1;
        grid-row: auto;
    }

    .app-page-main .answer-box {
        min-height: 190px;
    }

    .documents-toolbar {
        align-items: stretch;
        flex-direction: column;
    }

    .documents-toolbar input {
        width: 100%;
    }

    .app-shell[data-page="chatbot.html"] .app-page-main > .header {
        align-items: flex-start;
        padding: 10px 14px;
    }

    .app-shell[data-page="chatbot.html"] .header-left p {
        display: none;
    }

    .app-shell[data-page="chatbot.html"] .header-left h1 {
        font-size: 17px;
    }

    .app-shell[data-page="chatbot.html"] .header-actions {
        flex-wrap: wrap;
    }

    .app-shell[data-page="chatbot.html"] .header-button {
        padding: 7px 9px;
        font-size: 10px;
    }

    .app-shell[data-page="chatbot.html"] .memory-bar {
        padding: 7px 12px;
        font-size: 10px;
    }

    .app-shell[data-page="chatbot.html"] .memory-bar > div:last-child {
        display: none;
    }

    .app-shell[data-page="chatbot.html"] .chat-container {
        padding: 14px 12px;
    }

    .app-shell[data-page="chatbot.html"] .input-area {
        padding: 10px 12px;
    }

    .app-shell[data-page="chatbot.html"] .hint {
        font-size: 9px;
    }
}

@media (max-width: 760px) {
    body:has(.login-card),
    body:has(#signupForm),
    body:has(#forgotPasswordForm),
    body:has(#resetPasswordForm) {
        grid-template-columns: 1fr;
    }

    .auth-story {
        min-height: 0;
        padding: 21px 22px;
    }

    .auth-story-copy {
        padding: 24px 0 17px;
    }

    .auth-story-copy h2 {
        max-width: 14ch;
        margin-bottom: 7px;
        font-size: 25px;
    }

    .auth-story-copy p,
    .auth-story-points,
    .auth-story-foot {
        display: none;
    }

    .login-container,
    body:has(#signupForm) > .container,
    body:has(#forgotPasswordForm) > .container,
    body:has(#resetPasswordForm) > .container {
        min-height: 0;
        padding: 23px 22px 36px;
    }

    .settings-account {
        align-items: flex-start;
        flex-direction: column;
    }
}

@media (max-width: 800px) {
    .hero {
        min-height: 0;
        padding: 40px 22px 28px;
    }

    .hero-container {
        grid-template-columns: minmax(0, 1fr);
        gap: 26px;
    }

    .hero-visual {
        width: 100%;
        aspect-ratio: 1.45;
    }

    .landing-workflow {
        padding: 28px 22px 42px;
    }
}

@media (max-width: 540px) {
    .landing-workflow-links {
        grid-template-columns: minmax(0, 1fr);
    }

    .landing-workflow-links a {
        min-height: 94px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .app-shell,
    .app-sidebar,
    .app-floating-ai,
    .dashboard-widget,
    .app-page-main .document-card {
        transition: none !important;
        animation: none !important;
    }
}