/*
 * Kaya - Main Application Styles
 * Following GNOME Human Interface Guidelines
 * https://brand.gnome.org/ & https://developer.gnome.org/hig/
 */

/* ============================================
   CSS Custom Properties - Light Theme (Default)
   Using GNOME Color Palette
   ============================================ */
:root {
    /* Primary Blue (GNOME Blue 3) */
    --color-primary: #3584e4;
    --color-primary-hover: #1c71d8; /* Blue 4 */
    --color-primary-light: #62a0ea; /* Blue 2 */
    --color-primary-lighter: #99c1f1; /* Blue 1 */

    /* Secondary Colors from GNOME Palette */
    --color-success: #33d17a; /* Green 3 */
    --color-success-dark: #26a269; /* Green 5 */
    --color-warning: #f6d32d; /* Yellow 3 */
    --color-error: #e01b24; /* Red 3 */
    --color-error-dark: #c01c28; /* Red 4 */

    /* Neutrals - Light Theme */
    --color-background: #ffffff; /* Light 1 */
    --color-background-alt: #f6f5f4; /* Light 2 */
    --color-surface: #ffffff; /* Light 1 */
    --color-surface-alt: #f6f5f4; /* Light 2 */
    --color-border: #deddda; /* Light 3 */
    --color-border-strong: #c0bfbc; /* Light 4 */

    /* Text Colors - Light Theme */
    --color-text: #241f31; /* Dark 4 */
    --color-text-secondary: #5e5c64; /* Dark 2 */
    --color-text-muted: #77767b; /* Dark 1 */
    --color-text-on-primary: #ffffff;

    /* Typography - Inter (as specified for web) */
    --font-family:
        "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen,
        Ubuntu, Cantarell, sans-serif;

    /* Font Sizes following GNOME HIG hierarchy */
    --font-size-caption: 0.75rem; /* 12px - Caption */
    --font-size-body: 0.875rem; /* 14px - Body */
    --font-size-body-large: 1rem; /* 16px */
    --font-size-title-4: 1.125rem; /* 18px - Title 4 */
    --font-size-title-3: 1.25rem; /* 20px - Title 3 */
    --font-size-title-2: 1.5rem; /* 24px - Title 2 */
    --font-size-title-1: 2rem; /* 32px - Title 1 */
    --font-size-large-title: 2.5rem; /* 40px - Large Title */

    /* Font Weights */
    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-heavy: 800;

    /* Line Heights */
    --line-height-tight: 1.2;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.6;

    /* Spacing (based on 6px base unit, common in GNOME) */
    --spacing-1: 0.375rem; /* 6px */
    --spacing-2: 0.75rem; /* 12px */
    --spacing-3: 1.125rem; /* 18px */
    --spacing-4: 1.5rem; /* 24px */
    --spacing-5: 2.25rem; /* 36px */
    --spacing-6: 3rem; /* 48px */
    --spacing-8: 4.5rem; /* 72px */

    /* Border Radius (GNOME uses rounded corners) */
    --radius-small: 6px;
    --radius-medium: 9px;
    --radius-large: 12px;
    --radius-xlarge: 18px;
    --radius-full: 9999px;

    /* Shadows - Light Theme */
    --shadow-small: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-medium: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-large: 0 4px 16px rgba(0, 0, 0, 0.12);

    /* Transitions */
    --transition-fast: 100ms ease;
    --transition-normal: 200ms ease;
    --transition-slow: 300ms ease;

    /* Focus ring */
    --focus-ring: 0 0 0 2px var(--color-primary-light);
}

/* ============================================
   Dark Theme
   Triggered by system preference or manual toggle
   ============================================ */
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        /* Backgrounds - Dark Theme */
        --color-background: #241f31; /* Dark 4 */
        --color-background-alt: #3d3846; /* Dark 3 */
        --color-surface: #3d3846; /* Dark 3 */
        --color-surface-alt: #5e5c64; /* Dark 2 */
        --color-border: #5e5c64; /* Dark 2 */
        --color-border-strong: #77767b; /* Dark 1 */

        /* Text Colors - Dark Theme */
        --color-text: #ffffff; /* Light 1 */
        --color-text-secondary: #deddda; /* Light 3 */
        --color-text-muted: #9a9996; /* Light 5 */

        /* Adjusted primary for dark (slightly lighter for contrast) */
        --color-primary: #62a0ea; /* Blue 2 */
        --color-primary-hover: #3584e4; /* Blue 3 */
        --color-primary-light: #99c1f1; /* Blue 1 */

        /* Shadows - Dark Theme (more subtle) */
        --shadow-small: 0 1px 3px rgba(0, 0, 0, 0.2);
        --shadow-medium: 0 2px 8px rgba(0, 0, 0, 0.25);
        --shadow-large: 0 4px 16px rgba(0, 0, 0, 0.3);
    }
}

/* Manual dark theme override */
:root[data-theme="dark"] {
    --color-background: #241f31;
    --color-background-alt: #3d3846;
    --color-surface: #3d3846;
    --color-surface-alt: #5e5c64;
    --color-border: #5e5c64;
    --color-border-strong: #77767b;
    --color-text: #ffffff;
    --color-text-secondary: #deddda;
    --color-text-muted: #9a9996;
    --color-primary: #62a0ea;
    --color-primary-hover: #3584e4;
    --color-primary-light: #99c1f1;
    --shadow-small: 0 1px 3px rgba(0, 0, 0, 0.2);
    --shadow-medium: 0 2px 8px rgba(0, 0, 0, 0.25);
    --shadow-large: 0 4px 16px rgba(0, 0, 0, 0.3);
}

/* ============================================
   Reset & Base Styles
   ============================================ */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-body);
    line-height: var(--line-height-normal);
    color: var(--color-text);
    background-color: var(--color-background);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-primary-hover);
}

a:focus-visible {
    outline: none;
    box-shadow: var(--focus-ring);
    border-radius: var(--radius-small);
}

img {
    max-width: 100%;
    height: auto;
}

/* ============================================
   Typography Classes (GNOME HIG Style)
   ============================================ */
.large-title {
    font-size: var(--font-size-large-title);
    font-weight: var(--font-weight-heavy);
    line-height: var(--line-height-tight);
    letter-spacing: -0.02em;
}

.title-1 {
    font-size: var(--font-size-title-1);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
    letter-spacing: -0.01em;
}

.title-2 {
    font-size: var(--font-size-title-2);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
}

.title-3 {
    font-size: var(--font-size-title-3);
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-tight);
}

.title-4 {
    font-size: var(--font-size-title-4);
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-normal);
}

.body {
    font-size: var(--font-size-body);
    font-weight: var(--font-weight-regular);
    line-height: var(--line-height-normal);
}

.caption {
    font-size: var(--font-size-caption);
    font-weight: var(--font-weight-regular);
    color: var(--color-text-muted);
}

/* ============================================
   Header Styles
   ============================================ */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: var(--color-background);
    border-bottom: 1px solid var(--color-border);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-2) var(--spacing-4);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-1);
    text-decoration: none;
}

.logo-link:focus-visible {
    box-shadow: var(--focus-ring);
}

.logo-icon {
    flex-shrink: 0;
}

.logo-text {
    font-size: var(--font-size-title-3);
    font-weight: var(--font-weight-bold);
    color: var(--color-text);
    letter-spacing: -0.02em;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

.nav-greeting {
    color: var(--color-text-muted);
    font-size: var(--font-size-body);
}

/* ============================================
   Button Styles (GNOME HIG)
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-1);
    padding: var(--spacing-1) var(--spacing-3);
    font-family: var(--font-family);
    font-size: var(--font-size-body);
    font-weight: var(--font-weight-medium);
    line-height: var(--line-height-normal);
    text-decoration: none;
    border: none;
    border-radius: var(--radius-medium);
    cursor: pointer;
    transition: all var(--transition-normal);
    min-height: 34px;
}

.btn:focus-visible {
    outline: none;
    box-shadow: var(--focus-ring);
}

/* Primary/Suggested Button */
.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-text-on-primary);
}

.btn-primary:hover {
    background-color: var(--color-primary-hover);
    color: var(--color-text-on-primary);
}

.btn-primary:active {
    background-color: var(--color-primary-hover);
    transform: translateY(1px);
}

/* Secondary/Default Button */
.btn-secondary {
    background-color: var(--color-surface-alt);
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    background-color: var(--color-border);
    color: var(--color-text);
}

.btn-secondary:active {
    background-color: var(--color-border-strong);
}

/* Large Button Variant */
.btn-large {
    padding: var(--spacing-2) var(--spacing-4);
    font-size: var(--font-size-body-large);
    min-height: 42px;
}

/* Full Width Button */
.btn-full {
    width: 100%;
}

/* OAuth Button Style */
.btn-oauth {
    width: 100%;
    padding: var(--spacing-2);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-medium);
    font-size: var(--font-size-body);
    color: var(--color-text);
    position: relative;
    min-height: 44px;
}

.btn-oauth:hover {
    background-color: var(--color-surface-alt);
    border-color: var(--color-border-strong);
}

.btn-oauth.btn-disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-oauth.btn-disabled:hover {
    background: var(--color-surface);
    border-color: var(--color-border);
}

.oauth-icon {
    flex-shrink: 0;
}

.coming-soon {
    font-size: var(--font-size-caption);
    color: var(--color-text-muted);
    background: var(--color-surface-alt);
    padding: 2px 8px;
    border-radius: var(--radius-full);
    margin-left: auto;
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: calc(60px + var(--spacing-6)) var(--spacing-4) var(--spacing-6);
    max-width: 1200px;
    margin: 0 auto;
    gap: var(--spacing-6);
}

.hero-content {
    flex: 1;
    max-width: 560px;
}

.hero-title {
    font-size: var(--font-size-large-title);
    font-weight: var(--font-weight-heavy);
    line-height: var(--line-height-tight);
    letter-spacing: -0.03em;
    margin-bottom: var(--spacing-3);
    color: var(--color-text);
}

.hero-title .highlight {
    color: var(--color-primary);
}

.hero-subtitle {
    font-size: var(--font-size-body-large);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-4);
    max-width: 460px;
    line-height: var(--line-height-relaxed);
}

.hero-cta {
    display: flex;
    gap: var(--spacing-2);
    flex-wrap: wrap;
}

.hero-visual {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.cards-preview {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-3);
    transform: rotate(-3deg);
}

.preview-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xlarge);
    padding: var(--spacing-4);
    width: 200px;
    box-shadow: var(--shadow-large);
    transition: transform var(--transition-normal);
}

.preview-card:hover {
    transform: translateY(-4px);
}

.note-card {
    transform: rotate(2deg);
}

.bookmark-card {
    transform: rotate(-2deg);
}

.card-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-large);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-2);
}

.note-card .card-icon {
    background: #f9f06b; /* Yellow 1 */
    color: #865e00; /* Yellow 5 */
}

.bookmark-card .card-icon {
    background: #8ff0a4; /* Green 1 */
    color: #1a7f37; /* Green 5 */
}

.document-card {
    transform: rotate(-1deg);
}

.document-card .card-icon {
    background: #f66151; /* Red 1 */
    color: #8b1a10; /* Red 5 */
}

.image-card {
    transform: rotate(1deg);
}

.image-card .card-icon {
    background: #99c1f1; /* Blue 1 */
    color: #1a5fb4; /* Blue 5 */
}

.card-label {
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-title-4);
    display: block;
    margin-bottom: var(--spacing-1);
    color: var(--color-text);
}

.card-desc {
    font-size: var(--font-size-body);
    color: var(--color-text-muted);
    line-height: var(--line-height-normal);
}

/* ============================================
   Features Section
   ============================================ */
.features-section {
    padding: var(--spacing-8) var(--spacing-4);
    background: var(--color-background-alt);
}

.features-container {
    max-width: 1000px;
    margin: 0 auto;
}

.section-title {
    font-size: var(--font-size-title-1);
    font-weight: var(--font-weight-bold);
    text-align: center;
    margin-bottom: var(--spacing-6);
    letter-spacing: -0.01em;
    color: var(--color-text);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-4);
}

.feature {
    background: var(--color-surface);
    padding: var(--spacing-4);
    border-radius: var(--radius-xlarge);
    border: 1px solid var(--color-border);
}

.feature-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-large);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-2);
}

.feature-icon.blue {
    background: #99c1f1; /* Blue 1 */
    color: #1a5fb4; /* Blue 5 */
}

.feature-icon.green {
    background: #8ff0a4; /* Green 1 */
    color: #1a7f37; /* Green 5 */
}

.feature-icon.purple {
    background: #dc8add; /* Purple 1 */
    color: #613583; /* Purple 5 */
}

.feature h3 {
    font-size: var(--font-size-title-4);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-1);
    color: var(--color-text);
}

.feature p {
    color: var(--color-text-secondary);
    font-size: var(--font-size-body);
    line-height: var(--line-height-relaxed);
}

/* ============================================
   Footer Styles
   ============================================ */
.site-footer {
    padding: var(--spacing-4);
    border-top: 1px solid var(--color-border);
    background: var(--color-background);
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-2);
}

.footer-copyright {
    color: var(--color-text-muted);
    font-size: var(--font-size-body);
}

.theme-toggle {
    display: flex;
    align-items: center;
    gap: var(--spacing-1);
}

.theme-toggle-label {
    font-size: var(--font-size-body);
    color: var(--color-text-muted);
}

.theme-toggle-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-1);
    padding: var(--spacing-1) var(--spacing-2);
    background: var(--color-surface-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-medium);
    font-family: var(--font-family);
    font-size: var(--font-size-body);
    color: var(--color-text);
    cursor: pointer;
    transition: all var(--transition-normal);
    min-height: 32px;
}

.theme-toggle-btn:hover {
    background: var(--color-border);
    border-color: var(--color-border-strong);
}

.theme-toggle-btn:focus-visible {
    outline: none;
    box-shadow: var(--focus-ring);
}

.theme-toggle-btn svg {
    width: 16px;
    height: 16px;
}

/* Hide theme icons based on current theme */
.theme-icon-light,
.theme-icon-dark,
.theme-icon-auto {
    display: none;
}

/* Show appropriate icon based on data-theme */
:root:not([data-theme]) .theme-icon-auto,
:root[data-theme="auto"] .theme-icon-auto {
    display: block;
}

:root[data-theme="light"] .theme-icon-light {
    display: block;
}

:root[data-theme="dark"] .theme-icon-dark {
    display: block;
}

/* ============================================
   Auth Pages (Login/Signup)
   ============================================ */
.auth-page {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background: var(--color-background-alt);
}

.auth-page-content {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-4);
}

.auth-container {
    width: 100%;
    max-width: 400px;
    background: var(--color-surface);
    padding: var(--spacing-5);
    border-radius: var(--radius-xlarge);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-large);
}

.auth-header {
    text-align: center;
    margin-bottom: var(--spacing-4);
}

.auth-logo {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-1);
    margin-bottom: var(--spacing-3);
}

.auth-logo .logo-text {
    font-size: var(--font-size-title-2);
}

.auth-logo .logo-icon {
    flex-shrink: 0;
}

.auth-header h1 {
    font-size: var(--font-size-title-2);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-1);
    letter-spacing: -0.01em;
    color: var(--color-text);
}

.auth-subtitle {
    color: var(--color-text-muted);
    font-size: var(--font-size-body);
}

/* OAuth Buttons Container */
.oauth-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-1);
    margin-bottom: var(--spacing-3);
}

/* Auth Divider */
.auth-divider {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    margin-bottom: var(--spacing-3);
}

.auth-divider::before,
.auth-divider::after {
    content: "";
    flex: 1;
    height: 1px;
    background: var(--color-border);
}

.auth-divider span {
    color: var(--color-text-muted);
    font-size: var(--font-size-body);
}

/* Auth Form */
.auth-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-1);
}

.form-group label {
    font-size: var(--font-size-body);
    font-weight: var(--font-weight-medium);
    color: var(--color-text);
}

.form-input {
    width: 100%;
    padding: var(--spacing-2);
    font-family: var(--font-family);
    font-size: var(--font-size-body);
    color: var(--color-text);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-medium);
    transition:
        border-color var(--transition-fast),
        box-shadow var(--transition-fast);
    min-height: 40px;
}

.form-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: var(--focus-ring);
}

.form-input::placeholder {
    color: var(--color-text-muted);
}

.form-hint {
    font-size: var(--font-size-caption);
    color: var(--color-text-muted);
}

.form-actions {
    display: flex;
    justify-content: flex-end;
}

.forgot-link {
    font-size: var(--font-size-body);
    color: var(--color-text-muted);
}

.forgot-link:hover {
    color: var(--color-primary);
}

/* Auth Footer */
.auth-footer {
    text-align: center;
    margin-top: var(--spacing-3);
    font-size: var(--font-size-body);
    color: var(--color-text-muted);
}

.auth-footer a {
    font-weight: var(--font-weight-medium);
}

/* Auth Page Footer (for theme toggle) */
.auth-page .site-footer {
    background: transparent;
    border-top: none;
}

/* ============================================
   Alerts
   ============================================ */
.alert {
    padding: var(--spacing-2);
    border-radius: var(--radius-medium);
    font-size: var(--font-size-body);
    margin-bottom: var(--spacing-2);
}

.alert-error {
    background: #f66151; /* Red 1 - lighter for better readability */
    color: #a51d2d; /* Red 5 */
    border: 1px solid #ed333b; /* Red 2 */
}

/* Dark mode alert adjustments */
:root[data-theme="dark"] .alert-error,
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .alert-error {
        background: rgba(224, 27, 36, 0.15);
        color: #f66151;
        border-color: rgba(224, 27, 36, 0.3);
    }
}

.alert-success {
    background: #8ff0a4; /* Green 1 */
    color: #26a269; /* Green 5 */
    border: 1px solid #57e389; /* Green 2 */
}

:root[data-theme="dark"] .alert-success,
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .alert-success {
        background: rgba(51, 209, 122, 0.15);
        color: #8ff0a4;
        border-color: rgba(51, 209, 122, 0.3);
    }
}

.alert ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.alert li {
    padding: var(--spacing-1) 0;
}

.alert li:first-child {
    padding-top: 0;
}

.alert li:last-child {
    padding-bottom: 0;
}

/* Flash messages (global) */
.flash-container {
    position: fixed;
    top: 70px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1000;
    max-width: 500px;
    width: calc(100% - var(--spacing-4));
}

.flash-message {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-2);
    box-shadow: var(--shadow-large);
    animation: flash-slide-in 0.3s ease;
}

.flash-message.flash-hiding {
    animation: flash-slide-out 0.3s ease forwards;
}

.flash-close {
    background: none;
    border: none;
    font-size: var(--font-size-title-3);
    line-height: 1;
    cursor: pointer;
    opacity: 0.7;
    padding: 0;
    color: inherit;
}

.flash-close:hover {
    opacity: 1;
}

@keyframes flash-slide-in {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes flash-slide-out {
    from {
        opacity: 1;
        transform: translateY(0);
    }
    to {
        opacity: 0;
        transform: translateY(-10px);
    }
}

/* ============================================
   Profile Avatar (Header)
   ============================================ */
.profile-link {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.profile-link:focus-visible {
    outline: none;
    border-radius: var(--radius-full);
    box-shadow: var(--focus-ring);
}

.profile-avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background: var(--color-primary);
    color: var(--color-text-on-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-body);
    font-weight: var(--font-weight-semibold);
    transition:
        transform var(--transition-fast),
        box-shadow var(--transition-fast);
}

.profile-link:hover .profile-avatar {
    transform: scale(1.05);
    box-shadow: var(--shadow-medium);
}

.profile-avatar-large {
    width: 80px;
    height: 80px;
    font-size: var(--font-size-title-1);
}

/* ============================================
   Account Page
   ============================================ */
.account-page {
    min-height: 100vh;
    padding: calc(60px + var(--spacing-4)) var(--spacing-4) var(--spacing-4);
    background: var(--color-background-alt);
}

.account-container {
    max-width: 600px;
    margin: 0 auto;
}

.account-header {
    text-align: center;
    margin-bottom: var(--spacing-4);
}

.account-header .profile-avatar {
    margin: 0 auto var(--spacing-3);
}

.account-header h1 {
    margin-bottom: var(--spacing-1);
    color: var(--color-text);
}

.account-email {
    color: var(--color-text-muted);
    font-size: var(--font-size-body);
}

.account-section {
    background: var(--color-surface);
    padding: var(--spacing-4);
    border-radius: var(--radius-xlarge);
    border: 1px solid var(--color-border);
    margin-bottom: var(--spacing-3);
}

.account-section h2 {
    margin-bottom: var(--spacing-2);
    color: var(--color-text);
}

.account-section .section-description {
    color: var(--color-text-muted);
    font-size: var(--font-size-body);
    margin-bottom: var(--spacing-2);
}

.account-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
}

.account-form .form-actions {
    margin-top: var(--spacing-1);
}

/* Connected Accounts */
.connected-accounts {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
    margin-bottom: var(--spacing-3);
}

.connected-account {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-2);
    background: var(--color-surface-alt);
    border-radius: var(--radius-medium);
    border: 1px solid var(--color-border);
}

.connected-account-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

.provider-icon {
    display: flex;
    align-items: center;
    justify-content: center;
}

.provider-name {
    font-weight: var(--font-weight-medium);
    color: var(--color-text);
}

.no-accounts {
    color: var(--color-text-muted);
    font-size: var(--font-size-body);
    text-align: center;
    padding: var(--spacing-2);
}

/* OAuth Connect Buttons */
.oauth-connect-buttons {
    padding-top: var(--spacing-2);
    border-top: 1px solid var(--color-border);
}

.oauth-buttons-row {
    display: flex;
    gap: var(--spacing-2);
    flex-wrap: wrap;
}

.btn-small {
    padding: var(--spacing-1) var(--spacing-2);
    font-size: var(--font-size-body);
    min-height: 34px;
}

/* ============================================
   Avatar Upload
   ============================================ */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.avatar-upload-button {
    position: relative;
    background: none;
    border: none;
    padding: 0;
    cursor: pointer;
    border-radius: var(--radius-full);
    overflow: hidden;
    width: 80px;
    height: 80px;
}

.avatar-upload-button:focus-visible {
    outline: none;
    box-shadow: var(--focus-ring);
}

.avatar-upload-button .profile-avatar,
.avatar-upload-button .profile-avatar-image {
    width: 80px;
    height: 80px;
}

.avatar-upload-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 80px;
    height: 80px;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-normal);
    border-radius: var(--radius-full);
    color: white;
}

.avatar-upload-button:hover .avatar-upload-overlay,
.avatar-upload-button:focus-visible .avatar-upload-overlay {
    opacity: 1;
}

/* Avatar images - fixed sizes */
.profile-avatar-image {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    object-fit: cover;
}

.profile-avatar-image.profile-avatar-large {
    width: 80px;
    height: 80px;
}

/* Avatar Modal */
.avatar-modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-4);
    background: rgba(0, 0, 0, 0.6);
}

.avatar-modal.active {
    display: flex;
}

.avatar-modal-content {
    background: var(--color-surface);
    border-radius: var(--radius-xlarge);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-large);
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.avatar-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-3) var(--spacing-4);
    border-bottom: 1px solid var(--color-border);
}

.avatar-modal-header h2 {
    margin: 0;
}

.avatar-modal-close {
    background: none;
    border: none;
    font-size: var(--font-size-title-1);
    color: var(--color-text-muted);
    cursor: pointer;
    padding: 0;
    line-height: 1;
}

.avatar-modal-close:hover {
    color: var(--color-text);
}

.avatar-modal-body {
    padding: var(--spacing-4);
    display: flex;
    gap: var(--spacing-4);
    overflow: hidden;
    flex: 1;
}

.avatar-cropper-container {
    flex: 1;
    min-width: 0;
    max-height: 400px;
    background: var(--color-background-alt);
    border-radius: var(--radius-medium);
    overflow: hidden;
}

.avatar-cropper-image {
    display: block;
    max-width: 100%;
}

.avatar-preview-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-2);
}

.avatar-preview-image {
    width: 120px;
    height: 120px;
    border-radius: var(--radius-full);
    object-fit: cover;
    border: 2px solid var(--color-border);
}

.avatar-modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-4);
    border-top: 1px solid var(--color-border);
}

/* Cropper.js overrides for circular crop */
.cropper-view-box,
.cropper-face {
    border-radius: 50%;
}

.cropper-view-box {
    outline: 0;
    box-shadow: 0 0 0 1px #39f;
}

@media (max-width: 600px) {
    .avatar-modal-body {
        flex-direction: column;
    }

    .avatar-cropper-container {
        max-height: 300px;
    }

    .avatar-preview-container {
        flex-direction: row;
        justify-content: center;
    }

    .avatar-preview-image {
        width: 80px;
        height: 80px;
    }
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 768px) {
    .hero {
        flex-direction: column;
        text-align: center;
        padding-top: calc(60px + var(--spacing-4));
        min-height: auto;
        padding-bottom: var(--spacing-4);
    }

    .hero-content {
        max-width: 100%;
    }

    .hero-title {
        font-size: var(--font-size-title-1);
    }

    .hero-subtitle {
        max-width: 100%;
    }

    .hero-cta {
        justify-content: center;
    }

    .hero-visual {
        margin-top: var(--spacing-4);
    }

    .cards-preview {
        transform: rotate(0);
        grid-template-columns: 1fr;
        max-width: 260px;
        margin: 0 auto;
    }

    .preview-card {
        width: 100%;
    }

    .note-card,
    .bookmark-card,
    .document-card,
    .image-card {
        transform: none;
    }

    .section-title {
        font-size: var(--font-size-title-2);
    }

    .auth-container {
        padding: var(--spacing-4);
    }

    .footer-container {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .header-container {
        padding: var(--spacing-2);
    }

    .nav-links {
        gap: var(--spacing-1);
    }

    .btn {
        padding: var(--spacing-1) var(--spacing-2);
        font-size: var(--font-size-body);
    }

    .btn-large {
        padding: var(--spacing-1) var(--spacing-3);
    }

    .hero-title {
        font-size: var(--font-size-title-2);
    }
}

/* ============================================
   Inter Font Import
   ============================================ */
@font-face {
    font-family: "Inter";
    font-style: normal;
    font-weight: 100 900;
    font-display: swap;
    src: url("https://fonts.gstatic.com/s/inter/v13/UcCO3FwrK3iLTeHuS_fvQtMwCp50KnMw2boKoduKmMEVuLyfAZ9hiJ-Ek-_EeA.woff2")
        format("woff2");
}

/* ============================================
   Hamburger Menu
   ============================================ */
.hamburger-menu {
    position: relative;
}

.hamburger-button {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    border-radius: var(--radius-medium);
    cursor: pointer;
    color: var(--color-text);
    transition: background-color var(--transition-fast);
}

.hamburger-button:hover {
    background-color: var(--color-surface-alt);
}

.hamburger-button:focus-visible {
    outline: none;
    box-shadow: var(--focus-ring);
}

.hamburger-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    margin-top: var(--spacing-1);
    min-width: 200px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-medium);
    box-shadow: var(--shadow-large);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-normal);
    z-index: 200;
}

.hamburger-dropdown.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.hamburger-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-2) var(--spacing-3);
    color: var(--color-text);
    text-decoration: none;
    transition: background-color var(--transition-fast);
}

.hamburger-item:hover {
    background-color: var(--color-surface-alt);
    color: var(--color-text);
}

.hamburger-item:first-child {
    border-radius: var(--radius-medium) var(--radius-medium) 0 0;
}

.hamburger-item:last-child {
    border-radius: 0 0 var(--radius-medium) var(--radius-medium);
}

.hamburger-item:only-child {
    border-radius: var(--radius-medium);
}

.hamburger-item.active {
    background-color: var(--color-primary);
    color: var(--color-text-on-primary);
}

.hamburger-item.active:hover {
    background-color: var(--color-primary-hover);
    color: var(--color-text-on-primary);
}

/* ============================================
   Everything Page
   ============================================ */
.everything-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: calc(60px + var(--spacing-4)) var(--spacing-4) var(--spacing-4);
}

.search-container {
    margin-bottom: var(--spacing-4);
}

.search-form {
    width: 100%;
}

.search-input {
    width: 100%;
    padding: var(--spacing-2) var(--spacing-3);
    font-family: var(--font-family);
    font-size: var(--font-size-body-large);
    color: var(--color-text);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-large);
    transition:
        border-color var(--transition-fast),
        box-shadow var(--transition-fast);
}

.search-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: var(--focus-ring);
}

.search-input::placeholder {
    color: var(--color-text-muted);
}

/* ============================================
   Anga Grid
   ============================================ */
.anga-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-3);
}

.anga-tile {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-large);
    overflow: hidden;
    transition:
        transform var(--transition-fast),
        box-shadow var(--transition-fast);
    cursor: pointer;
}

.anga-tile:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.anga-tile-content {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-2);
    overflow: hidden;
}

.anga-tile-filename {
    padding: var(--spacing-2);
    font-size: var(--font-size-caption);
    color: var(--color-text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    border-top: 1px solid var(--color-border);
    background: var(--color-surface-alt);
}

/* Note Tiles */
.anga-tile-note {
    background: var(--color-background-alt);
    align-items: flex-start;
    justify-content: flex-start;
}

.note-preview {
    font-size: var(--font-size-body);
    font-weight: var(--font-weight-medium);
    line-height: var(--line-height-normal);
    color: var(--color-text);
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 8;
    -webkit-box-orient: vertical;
    word-break: break-word;
}

/* Bookmark Tiles */
.anga-tile-bookmark {
    background: #fdf6e3;
}

:root[data-theme="dark"] .anga-tile-bookmark {
    background: #4a4458;
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .anga-tile-bookmark {
        background: #4a4458;
    }
}

.anga-tile-bookmark svg {
    width: 64px;
    height: 64px;
    color: var(--color-primary);
}

.bookmark-favicon {
    width: 64px;
    height: 64px;
    object-fit: contain;
}

/* Image Tiles */
.anga-tile-image {
    padding: 0;
}

.anga-tile-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* PDF Tiles */
.anga-tile-pdf {
    background: #fff5f5;
}

:root[data-theme="dark"] .anga-tile-pdf {
    background: #4a4458;
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .anga-tile-pdf {
        background: #4a4458;
    }
}

.anga-tile-pdf svg {
    width: 64px;
    height: 64px;
    color: var(--color-primary);
}

/* Generic File Tiles */
.anga-tile-file {
    background: var(--color-surface-alt);
}

.file-extension {
    font-size: var(--font-size-title-3);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-muted);
    text-transform: uppercase;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: var(--spacing-8) var(--spacing-4);
    color: var(--color-text-muted);
}

.empty-state p {
    font-size: var(--font-size-body-large);
}

/* Responsive Grid */
@media (max-width: 1024px) {
    .anga-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .anga-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .anga-grid {
        grid-template-columns: 1fr;
    }

    .everything-container {
        padding: calc(60px + var(--spacing-2)) var(--spacing-2) var(--spacing-2);
    }
}

/* ============================================
   Preview Modal (GNOME HIG Dialog Style)
   ============================================ */
.preview-modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-4);
    background: rgba(0, 0, 0, 0.6);
}

.preview-modal.active {
    display: flex;
}

.preview-modal-dialog {
    background: var(--color-surface);
    border-radius: var(--radius-xlarge);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-large);
    width: 100%;
    max-width: 900px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.preview-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-2) var(--spacing-3);
    border-bottom: 1px solid var(--color-border);
    background: var(--color-surface-alt);
    gap: var(--spacing-2);
}

.preview-modal-title {
    font-size: var(--font-size-body);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text);
    margin: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex: 1;
    min-width: 0;
}

.preview-modal-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    flex-shrink: 0;
}

.preview-modal-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    padding: 0;
    background: none;
    border: none;
    border-radius: var(--radius-medium);
    color: var(--color-text-muted);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.preview-modal-close:hover {
    background: var(--color-border);
    color: var(--color-text);
}

.preview-modal-close:focus-visible {
    outline: none;
    box-shadow: var(--focus-ring);
}

.preview-modal-content {
    flex: 1;
    overflow: auto;
    padding: var(--spacing-4);
    min-height: 200px;
}

/* Preview Loading State */
.preview-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    min-height: 200px;
    color: var(--color-text-muted);
    font-size: var(--font-size-body);
}

/* Preview Error State */
.preview-error {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    min-height: 200px;
    color: var(--color-error);
    font-size: var(--font-size-body);
}

/* Preview Unsupported State */
.preview-unsupported {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    min-height: 200px;
    color: var(--color-text-muted);
    font-size: var(--font-size-body);
}

/* Text Preview (notes, txt files) */
.preview-note {
    font-family: var(--font-family);
    font-size: var(--font-size-body);
    line-height: var(--line-height-relaxed);
    color: var(--color-text);
    white-space: pre-wrap;
    word-wrap: break-word;
    margin: 0;
    padding: 0;
}

/* Image Preview */
.preview-image {
    display: block;
    max-width: 100%;
    max-height: 70vh;
    margin: 0 auto;
    border-radius: var(--radius-medium);
}

/* PDF Preview */
.preview-pdf {
    width: 100%;
    height: 70vh;
    border: none;
    border-radius: var(--radius-medium);
}

/* Cached Webpage Preview */
.preview-cached-page {
    width: 100%;
    height: 70vh;
    border: none;
    border-radius: var(--radius-medium);
    background: white;
}

/* Bookmark Preview */
.preview-bookmark {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
}

.preview-bookmark-notice {
    color: var(--color-text-muted);
    font-size: var(--font-size-body);
    font-style: italic;
    margin: 0;
}

.preview-caching-status {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-3);
    background: var(--color-surface-alt);
    border-radius: var(--radius-medium);
}

.preview-caching-status .preview-bookmark-notice {
    font-style: normal;
}

.caching-spinner {
    width: 20px;
    height: 20px;
    border: 2px solid var(--color-border);
    border-top-color: var(--color-accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.preview-cache-error {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-1);
    padding: var(--spacing-3);
    background: var(--color-error-bg, #fef2f2);
    border: 1px solid var(--color-error-border, #fecaca);
    border-radius: var(--radius-medium);
}

:root[data-theme="dark"] .preview-cache-error {
    background: #4a2020;
    border-color: #7f1d1d;
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .preview-cache-error {
        background: #4a2020;
        border-color: #7f1d1d;
    }
}

.preview-cache-error .preview-bookmark-notice {
    font-style: normal;
    font-weight: var(--font-weight-medium);
    color: var(--color-error, #dc2626);
}

.preview-error-details {
    font-size: var(--font-size-caption);
    color: var(--color-text-muted);
    margin: 0;
    word-break: break-word;
}

.preview-bookmark-content {
    font-family: monospace;
    font-size: var(--font-size-body);
    line-height: var(--line-height-normal);
    color: var(--color-text);
    background: var(--color-background-alt);
    padding: var(--spacing-3);
    border-radius: var(--radius-medium);
    white-space: pre-wrap;
    word-wrap: break-word;
    margin: 0;
}

/* Hidden utility class */
.hidden {
    display: none !important;
}

/* Preview Modal Responsive */
@media (max-width: 768px) {
    .preview-modal {
        padding: var(--spacing-2);
    }

    .preview-modal-dialog {
        max-height: 95vh;
    }

    .preview-modal-content {
        padding: var(--spacing-3);
    }

    .preview-pdf {
        height: 60vh;
    }
}

@media (max-width: 480px) {
    .preview-modal {
        padding: 0;
    }

    .preview-modal-dialog {
        border-radius: 0;
        max-height: 100vh;
        height: 100vh;
    }

    .preview-modal-header {
        padding: var(--spacing-2);
    }

    .preview-modal-content {
        padding: var(--spacing-2);
    }

    .preview-image {
        max-height: 50vh;
    }

    .preview-pdf {
        height: 50vh;
    }
}

/* ============================================
   Header Left (Hamburger + Add Button)
   ============================================ */
.header-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-1);
}

.add-button {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    border-radius: var(--radius-medium);
    cursor: pointer;
    color: var(--color-text);
    transition: background-color var(--transition-fast);
}

.add-button:hover {
    background-color: var(--color-surface-alt);
}

.add-button:focus-visible {
    outline: none;
    box-shadow: var(--focus-ring);
}

/* ============================================
   Add Modal (GNOME HIG Dialog Style)
   ============================================ */
.add-modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-4);
    background: rgba(0, 0, 0, 0.6);
}

.add-modal.active {
    display: flex;
}

.add-modal-dialog {
    background: var(--color-surface);
    border-radius: var(--radius-xlarge);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-large);
    width: 100%;
    max-width: 500px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.add-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-2) var(--spacing-3);
    border-bottom: 1px solid var(--color-border);
    background: var(--color-surface-alt);
}

.add-modal-title {
    font-size: var(--font-size-body);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text);
    margin: 0;
}

.add-modal-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    padding: 0;
    background: none;
    border: none;
    border-radius: var(--radius-medium);
    color: var(--color-text-muted);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.add-modal-close:hover {
    background: var(--color-border);
    color: var(--color-text);
}

.add-modal-close:focus-visible {
    outline: none;
    box-shadow: var(--focus-ring);
}

.add-modal-content {
    padding: var(--spacing-4);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
}

/* Dropzone */
.add-modal-dropzone {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
    padding: var(--spacing-3);
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-large);
    background: var(--color-background-alt);
    transition: all var(--transition-fast);
}

.add-modal-dropzone.drag-over {
    border-color: var(--color-primary);
    background: var(--color-primary-lighter);
}

:root[data-theme="dark"] .add-modal-dropzone.drag-over {
    background: rgba(98, 160, 234, 0.15);
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .add-modal-dropzone.drag-over {
        background: rgba(98, 160, 234, 0.15);
    }
}

.add-input {
    width: 100%;
    padding: var(--spacing-2);
    font-family: var(--font-family);
    font-size: var(--font-size-body);
    color: var(--color-text);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-medium);
    resize: vertical;
    min-height: 100px;
    transition:
        border-color var(--transition-fast),
        box-shadow var(--transition-fast);
}

.add-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: var(--focus-ring);
}

.add-input::placeholder {
    color: var(--color-text-muted);
}

.add-dropzone-hint {
    text-align: center;
    color: var(--color-text-muted);
    font-size: var(--font-size-body);
}

/* Modal Footer */
.add-modal-footer {
    display: flex;
    justify-content: flex-end;
}

/* Pill Button (GNOME style) */
.btn-pill {
    border-radius: var(--radius-full);
    padding: var(--spacing-1) var(--spacing-4);
    font-weight: var(--font-weight-semibold);
}

/* Status Messages */
.add-modal-status {
    padding: var(--spacing-2);
    border-radius: var(--radius-medium);
    font-size: var(--font-size-body);
    text-align: center;
}

.add-modal-status-info {
    background: var(--color-primary-lighter);
    color: var(--color-primary-hover);
}

.add-modal-status-success {
    background: #8ff0a4;
    color: #26a269;
}

.add-modal-status-error {
    background: #f66151;
    color: #a51d2d;
}

:root[data-theme="dark"] .add-modal-status-info {
    background: rgba(98, 160, 234, 0.2);
    color: var(--color-primary-light);
}

:root[data-theme="dark"] .add-modal-status-success {
    background: rgba(51, 209, 122, 0.2);
    color: #8ff0a4;
}

:root[data-theme="dark"] .add-modal-status-error {
    background: rgba(224, 27, 36, 0.2);
    color: #f66151;
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .add-modal-status-info {
        background: rgba(98, 160, 234, 0.2);
        color: var(--color-primary-light);
    }

    :root:not([data-theme="light"]) .add-modal-status-success {
        background: rgba(51, 209, 122, 0.2);
        color: #8ff0a4;
    }

    :root:not([data-theme="light"]) .add-modal-status-error {
        background: rgba(224, 27, 36, 0.2);
        color: #f66151;
    }
}

/* Add Modal Responsive */
@media (max-width: 480px) {
    .add-modal {
        padding: var(--spacing-2);
    }

    .add-modal-dialog {
        max-width: 100%;
    }

    .add-modal-content {
        padding: var(--spacing-3);
    }
}

/* ============================================
   Preview Modal with Sidebar
   Following GNOME HIG patterns
   ============================================ */
.preview-modal-with-sidebar {
    max-width: 1100px;
    display: flex;
    flex-direction: column;
}

.preview-modal-body {
    display: flex;
    flex: 1;
    overflow: hidden;
    min-height: 0;
}

.preview-modal-with-sidebar .preview-modal-content {
    flex: 1;
    overflow: auto;
    min-width: 0;
}

/* Sidebar */
.preview-sidebar {
    width: 280px;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    border-left: 1px solid var(--color-border);
    background: var(--color-surface-alt);
    transition:
        width var(--transition-normal),
        margin var(--transition-normal);
    overflow: hidden;
}

.preview-sidebar.collapsed {
    width: 40px;
}

.preview-sidebar.collapsed .sidebar-content {
    opacity: 0;
    pointer-events: none;
}

.preview-sidebar.collapsed .sidebar-toggle svg {
    transform: rotate(180deg);
}

.sidebar-toggle {
    display: flex;
    align-items: center;
    gap: var(--spacing-1);
    padding: var(--spacing-2);
    background: none;
    border: none;
    border-bottom: 1px solid var(--color-border);
    color: var(--color-text-muted);
    cursor: pointer;
    font-size: var(--font-size-caption);
    transition:
        color var(--transition-fast),
        background-color var(--transition-fast);
    width: 100%;
    text-align: left;
}

.sidebar-toggle:hover {
    color: var(--color-text);
    background-color: var(--color-border);
}

.sidebar-toggle:focus-visible {
    outline: none;
    box-shadow: var(--focus-ring);
}

.sidebar-toggle svg {
    flex-shrink: 0;
    transition: transform var(--transition-normal);
}

.sidebar-toggle-label {
    white-space: nowrap;
    overflow: hidden;
}

.preview-sidebar.collapsed .sidebar-toggle-label {
    display: none;
}

.sidebar-content {
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    transition: opacity var(--transition-fast);
}

/* Sidebar Sections */
.sidebar-section {
    padding: var(--spacing-3);
    border-bottom: 1px solid var(--color-border);
}

.sidebar-section:last-of-type {
    border-bottom: none;
}

.sidebar-section-title {
    font-size: var(--font-size-caption);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-2);
}

/* Tags */
.tags-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
}

.tags-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-1);
}

.tag {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 8px;
    background: var(--color-primary-lighter);
    color: var(--color-primary-hover);
    border-radius: var(--radius-full);
    font-size: var(--font-size-caption);
    font-weight: var(--font-weight-medium);
}

:root[data-theme="dark"] .tag {
    background: rgba(98, 160, 234, 0.2);
    color: var(--color-primary-light);
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .tag {
        background: rgba(98, 160, 234, 0.2);
        color: var(--color-primary-light);
    }
}

.tag-text {
    max-width: 150px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.tag-remove {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    padding: 0;
    background: none;
    border: none;
    border-radius: var(--radius-full);
    color: inherit;
    cursor: pointer;
    opacity: 0.7;
    transition:
        opacity var(--transition-fast),
        background-color var(--transition-fast);
    font-size: 14px;
    line-height: 1;
}

.tag-remove:hover {
    opacity: 1;
    background: rgba(0, 0, 0, 0.1);
}

.tag-input-container {
    display: flex;
    gap: var(--spacing-1);
}

.tag-input {
    flex: 1;
    padding: var(--spacing-1) var(--spacing-2);
    font-family: var(--font-family);
    font-size: var(--font-size-body);
    color: var(--color-text);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-medium);
    transition:
        border-color var(--transition-fast),
        box-shadow var(--transition-fast);
    min-width: 0;
}

.tag-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: var(--focus-ring);
}

.tag-input::placeholder {
    color: var(--color-text-muted);
}

.tag-add-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    padding: 0;
    background: var(--color-primary);
    color: var(--color-text-on-primary);
    border: none;
    border-radius: var(--radius-medium);
    cursor: pointer;
    font-size: var(--font-size-title-4);
    font-weight: var(--font-weight-bold);
    transition: background-color var(--transition-fast);
    flex-shrink: 0;
}

.tag-add-btn:hover {
    background: var(--color-primary-hover);
}

.tag-add-btn:focus-visible {
    outline: none;
    box-shadow: var(--focus-ring);
}

/* Note Editor */
.sidebar-section-note {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 150px;
}

.note-editor {
    flex: 1;
    width: 100%;
    padding: var(--spacing-2);
    font-family: var(--font-family);
    font-size: var(--font-size-body);
    line-height: var(--line-height-relaxed);
    color: var(--color-text);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-medium);
    resize: none;
    transition:
        border-color var(--transition-fast),
        box-shadow var(--transition-fast);
}

.note-editor:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: var(--focus-ring);
}

.note-editor::placeholder {
    color: var(--color-text-muted);
}

/* Sidebar Actions */
.sidebar-actions {
    padding: var(--spacing-3);
    border-top: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
    margin-top: auto;
}

.sidebar-action-btn {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: var(--spacing-2);
    width: 100%;
    padding: var(--spacing-2);
    text-decoration: none;
}

.sidebar-action-btn svg {
    flex-shrink: 0;
}

.sidebar-action-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.sidebar-action-btn.success {
    background: var(--color-success);
    color: white;
    border-color: var(--color-success);
}

/* Modal Footer */
.preview-modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-2);
    padding: var(--spacing-3);
    border-top: 1px solid var(--color-border);
    background: var(--color-surface-alt);
}

/* Preview Modal Responsive with Sidebar */
@media (max-width: 900px) {
    .preview-modal-with-sidebar {
        max-width: 100%;
    }

    .preview-sidebar {
        width: 240px;
    }
}

@media (max-width: 768px) {
    .preview-modal-body {
        flex-direction: column;
    }

    .preview-sidebar {
        width: 100%;
        max-height: 300px;
        border-left: none;
        border-top: 1px solid var(--color-border);
    }

    .preview-sidebar.collapsed {
        width: 100%;
        max-height: 40px;
    }

    .sidebar-toggle svg {
        transform: rotate(90deg);
    }

    .preview-sidebar.collapsed .sidebar-toggle svg {
        transform: rotate(-90deg);
    }
}

@media (max-width: 480px) {
    .preview-modal-with-sidebar {
        border-radius: 0;
    }

    .preview-modal-footer {
        padding: var(--spacing-2);
    }

    .sidebar-section {
        padding: var(--spacing-2);
    }

    .sidebar-actions {
        padding: var(--spacing-2);
    }
}