/* ==========================================================================
   Our Memory Book — Design System
   Aesthetic: "Intimate Warmth" — literary elegance meets personal warmth
   ========================================================================== */

/* ---------- Fonts ---------- */
/* Font loading moved to <head> in base.html for faster preconnect */

/* ---------- Design Tokens ---------- */
:root {
    /* Typography */
    --font-display: 'Cormorant Garamond', 'Georgia', serif;
    --font-body: 'Outfit', system-ui, sans-serif;

    /* Palette — warm, grounded, intimate */
    --color-bg: #F8F5F0;
    --color-bg-warm: #F3EDE5;
    --color-bg-card: #FFFCF8;
    --color-bg-card-hover: #FFF9F2;
    --color-surface: #EDE8E0;

    --color-text: #1A1614;
    --color-text-secondary: #5C524A;
    --color-text-muted: #8A7F76;

    --color-primary: #B85C38;
    --color-primary-hover: #9E4D2E;
    --color-primary-light: #D4A574;
    --color-primary-glow: rgba(184, 92, 56, 0.12);

    --color-accent: #7D8471;
    --color-accent-light: #A8B09E;

    --color-border: #DDD5CB;
    --color-border-light: #EAE4DC;
    --color-border-focus: var(--color-primary);

    --color-success: #5E8B65;
    --color-error: #C0503E;
    --color-warning: #C49333;
    --color-info: #5B7FA0;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2.5rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;

    /* Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 20px;

    /* Shadows — warm-tinted */
    --shadow-sm: 0 1px 3px rgba(26, 22, 20, 0.06);
    --shadow-md: 0 4px 12px rgba(26, 22, 20, 0.08);
    --shadow-lg: 0 8px 30px rgba(26, 22, 20, 0.10);
    --shadow-glow: 0 0 0 3px var(--color-primary-glow);

    /* Transitions */
    --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
    --duration-fast: 150ms;
    --duration-normal: 300ms;
    --duration-slow: 500ms;
}

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-weight: 400;
    color: var(--color-text);
    background-color: var(--color-bg);
    line-height: 1.65;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    position: relative;
}

/* Subtle grain overlay for tactile depth */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.03'/%3E%3C/svg%3E");
    background-repeat: repeat;
    background-size: 256px 256px;
    pointer-events: none;
    z-index: 9999;
}

/* ---------- Typography ---------- */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 600;
    line-height: 1.2;
    color: var(--color-text);
    letter-spacing: -0.01em;
}

h1 {
    font-size: clamp(2.2rem, 5vw, 3.2rem);
    font-weight: 700;
}

h2 {
    font-size: clamp(1.6rem, 3.5vw, 2.2rem);
}

h3 {
    font-size: clamp(1.2rem, 2.5vw, 1.6rem);
}

p {
    max-width: 60ch;
}

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

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

/* ---------- Layout ---------- */
.container {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

main {
    flex: 1;
    padding: var(--space-2xl) 0;
}

/* ---------- Header / Navigation ---------- */
header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(248, 245, 240, 0.85);
    backdrop-filter: blur(16px) saturate(1.2);
    -webkit-backdrop-filter: blur(16px) saturate(1.2);
    border-bottom: 1px solid var(--color-border-light);
}

header nav {
    max-width: 1100px;
    margin: 0 auto;
    padding: var(--space-md) var(--space-lg);
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.nav-brand {
    font-family: var(--font-display);
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--color-text);
    letter-spacing: -0.02em;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    transition: opacity var(--duration-fast) var(--ease-out);
}

.nav-brand:hover {
    opacity: 0.8;
    color: var(--color-text);
}

.nav-brand-icon {
    width: 28px;
    height: 28px;
    background: var(--color-primary);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 0.8rem;
    font-weight: 600;
    transform: rotate(-3deg);
    box-shadow: 0 2px 6px rgba(184, 92, 56, 0.25);
}

.nav-spacer {
    flex: 1;
}

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

.nav-links a {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    transition: all var(--duration-fast) var(--ease-out);
}

.nav-links a:hover {
    color: var(--color-text);
    background: var(--color-primary-glow);
}

.nav-links a.btn-primary {
    color: white;
    background: var(--color-primary);
    padding: 0.45rem 1rem;
    font-weight: 600;
}

.nav-links a.btn-primary:hover {
    color: white;
    background: var(--color-primary-hover);
    box-shadow: 0 2px 8px rgba(184, 92, 56, 0.3);
}

.nav-user {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    font-weight: 400;
}

.nav-separator {
    width: 1px;
    height: 20px;
    background: var(--color-border);
}

.nav-logout-form {
    display: inline;
    margin: 0;
    padding: 0;
}

.nav-logout-btn {
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    background: none;
    border: none;
    cursor: pointer;
    transition: color var(--duration-fast) var(--ease-out),
                background var(--duration-fast) var(--ease-out);
}

.nav-logout-btn:hover {
    color: var(--color-text);
    background: var(--color-primary-glow);
}

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 500;
    padding: 0.7rem 1.5rem;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--duration-normal) var(--ease-out);
    text-decoration: none;
    line-height: 1;
}

.btn-primary {
    background: var(--color-primary);
    color: white;
    box-shadow: 0 2px 8px rgba(184, 92, 56, 0.2);
}

.btn-primary:hover {
    background: var(--color-primary-hover);
    color: white;
    box-shadow: 0 4px 16px rgba(184, 92, 56, 0.3);
    transform: translateY(-1px);
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: 0 1px 4px rgba(184, 92, 56, 0.2);
}

.btn-secondary {
    background: transparent;
    color: var(--color-text);
    border: 1.5px solid var(--color-border);
}

.btn-secondary:hover {
    border-color: var(--color-primary-light);
    background: var(--color-primary-glow);
    color: var(--color-primary);
}

.btn-lg {
    padding: 0.85rem 2rem;
    font-size: 1.05rem;
    border-radius: var(--radius-lg);
}

.btn-sm {
    padding: 0.45rem 1rem;
    font-size: 0.85rem;
}

.btn-block {
    width: 100%;
}

/* ---------- Cards ---------- */
.card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    box-shadow: var(--shadow-sm);
    transition: all var(--duration-normal) var(--ease-out);
}

.card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--color-border);
}

/* ---------- Forms ---------- */
.form-group {
    margin-bottom: var(--space-lg);
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xs);
    letter-spacing: 0.02em;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"],
.form-group input[type="url"],
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.7rem 0.9rem;
    font-family: var(--font-body);
    font-size: 0.95rem;
    color: var(--color-text);
    background: var(--color-bg);
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all var(--duration-fast) var(--ease-out);
    outline: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    border-color: var(--color-border-focus);
    box-shadow: var(--shadow-glow);
    background: white;
}

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

.form-group .helptext {
    display: block;
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-top: var(--space-xs);
    line-height: 1.5;
}

.form-group .helptext ul {
    list-style: none;
    padding: 0;
}

.form-group .helptext li {
    padding: var(--space-xs) 0;
}

.form-group .helptext li::before {
    content: '·';
    margin-right: var(--space-sm);
    color: var(--color-primary-light);
    font-weight: 700;
}

.form-group .errorlist {
    list-style: none;
    padding: 0;
    margin-top: var(--space-xs);
}

.form-group .errorlist li {
    font-size: 0.82rem;
    color: var(--color-error);
    padding: var(--space-xs) 0;
}

/* Style Django's default form rendering */
form p {
    margin-bottom: var(--space-lg);
}

form p label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xs);
    letter-spacing: 0.02em;
}

form p input[type="text"],
form p input[type="email"],
form p input[type="password"],
form p input[type="url"],
form p textarea,
form p select {
    width: 100%;
    padding: 0.7rem 0.9rem;
    font-family: var(--font-body);
    font-size: 0.95rem;
    color: var(--color-text);
    background: var(--color-bg);
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all var(--duration-fast) var(--ease-out);
    outline: none;
}

form p input:focus,
form p textarea:focus,
form p select:focus {
    border-color: var(--color-border-focus);
    box-shadow: var(--shadow-glow);
    background: white;
}

form p .helptext {
    display: block;
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-top: var(--space-xs);
    line-height: 1.5;
}

form p .helptext ul {
    list-style: none;
    padding: 0;
}

form p .helptext li {
    padding: 2px 0;
}

form p .helptext li::before {
    content: '·';
    margin-right: var(--space-sm);
    color: var(--color-primary-light);
    font-weight: 700;
}

form p .errorlist,
form .errorlist {
    list-style: none;
    padding: 0;
    margin: var(--space-xs) 0;
}

form p .errorlist li,
form .errorlist li {
    font-size: 0.82rem;
    color: var(--color-error);
    padding: 2px 0;
}

/* ---------- Messages / Alerts ---------- */
.messages {
    max-width: 1100px;
    margin: 0 auto var(--space-lg);
    padding: 0 var(--space-lg);
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.message {
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    font-weight: 500;
    border-left: 3px solid;
    animation: slideDown var(--duration-normal) var(--ease-out) both;
}

.message.success {
    background: #f0f7f1;
    color: var(--color-success);
    border-color: var(--color-success);
}

.message.error {
    background: #fdf2f0;
    color: var(--color-error);
    border-color: var(--color-error);
}

.message.warning {
    background: #fdf6ec;
    color: var(--color-warning);
    border-color: var(--color-warning);
}

.message.info {
    background: #eef4f9;
    color: var(--color-info);
    border-color: var(--color-info);
}

/* ---------- Footer ---------- */
footer {
    border-top: 1px solid var(--color-border-light);
    padding: var(--space-xl) var(--space-lg);
    text-align: center;
}

footer p {
    font-size: 0.82rem;
    color: var(--color-text-muted);
    max-width: none;
    font-weight: 400;
    letter-spacing: 0.02em;
}

/* ---------- Auth Pages Layout ---------- */
.auth-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: calc(100vh - 200px);
    padding: var(--space-xl) var(--space-lg);
}

.auth-card {
    width: 100%;
    max-width: 440px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    box-shadow: var(--shadow-lg);
    animation: fadeUp var(--duration-slow) var(--ease-out) both;
}

.auth-card h1 {
    text-align: center;
    margin-bottom: var(--space-xs);
    font-size: 2rem;
}

.auth-subtitle {
    text-align: center;
    color: var(--color-text-muted);
    font-size: 0.95rem;
    margin-bottom: var(--space-xl);
    max-width: none;
}

.auth-footer {
    text-align: center;
    margin-top: var(--space-lg);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-border-light);
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

.auth-footer a {
    font-weight: 500;
}

/* ---------- Home / Hero ---------- */
.hero {
    text-align: center;
    padding: var(--space-3xl) var(--space-lg);
    max-width: 800px;
    margin: 0 auto;
    animation: fadeUp var(--duration-slow) var(--ease-out) both;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--color-primary);
    background: var(--color-primary-glow);
    padding: var(--space-xs) var(--space-md);
    border-radius: 100px;
    margin-bottom: var(--space-lg);
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.hero h1 {
    font-size: clamp(2.5rem, 6vw, 4rem);
    line-height: 1.1;
    margin-bottom: var(--space-lg);
    font-weight: 700;
}

.hero h1 em {
    font-style: italic;
    color: var(--color-primary);
}

.hero-description {
    font-size: clamp(1.05rem, 2.5vw, 1.2rem);
    color: var(--color-text-secondary);
    max-width: 55ch;
    margin: 0 auto var(--space-xl);
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.hero-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--space-lg);
    max-width: 900px;
    margin: var(--space-3xl) auto 0;
    padding: 0 var(--space-lg);
    animation: fadeUp var(--duration-slow) var(--ease-out) 200ms both;
}

.hero-feature {
    text-align: center;
    padding: var(--space-xl) var(--space-lg);
    border-radius: var(--radius-lg);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border-light);
    transition: all var(--duration-normal) var(--ease-out);
}

.hero-feature:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-border);
}

.hero-feature-icon {
    font-size: 1.6rem;
    margin-bottom: var(--space-md);
    display: block;
}

.hero-feature h3 {
    font-size: 1.1rem;
    margin-bottom: var(--space-sm);
}

.hero-feature p {
    font-size: 0.88rem;
    color: var(--color-text-muted);
    max-width: none;
    line-height: 1.6;
}

/* ---------- Decorative Divider ---------- */
.divider {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin: var(--space-xl) 0;
    color: var(--color-text-muted);
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

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

/* ---------- Animations ---------- */
@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(16px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* ---------- Utilities ---------- */
.text-center { text-align: center; }
.text-muted { color: var(--color-text-muted); }
.text-sm { font-size: 0.85rem; }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }

/* ==========================================================================
   Interior Pages — Component Library
   ========================================================================== */

/* ---------- Page Layout ---------- */
.page-header {
    max-width: 1100px;
    margin: 0 auto var(--space-xl);
    padding: 0 var(--space-lg);
    animation: fadeUp var(--duration-slow) var(--ease-out) both;
}

.page-header h1 {
    margin-bottom: var(--space-sm);
}

.page-header p {
    color: var(--color-text-secondary);
    font-size: 1.05rem;
    line-height: 1.7;
}

.page-header-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--space-md);
}

.page-content {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
    animation: fadeUp var(--duration-slow) var(--ease-out) 100ms both;
}

.page-actions {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

.page-section {
    margin-top: var(--space-xl);
}

.page-section h2 {
    font-size: 1.3rem;
    margin-bottom: var(--space-md);
    color: var(--color-text);
}

/* ---------- Cover Image ---------- */
.book-cover-image {
    width: 100%;
    max-height: 300px;
    object-fit: cover;
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-lg);
    box-shadow: var(--shadow-md);
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 0.9rem;
    color: var(--color-text-muted);
    margin-top: var(--space-xl);
    transition: color var(--duration-fast) var(--ease-out);
}

.back-link::before {
    content: '\2190';
}

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

/* ---------- Stats Grid ---------- */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: var(--space-md);
}

.stat-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    text-align: center;
    transition: all var(--duration-normal) var(--ease-out);
}

.stat-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--color-border);
}

.stat-card-number {
    font-family: var(--font-display);
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
    margin-bottom: var(--space-xs);
}

.stat-card-label {
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ---------- Book Grid & Cards ---------- */
.book-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--space-lg);
}

.book-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    box-shadow: var(--shadow-sm);
    transition: all var(--duration-normal) var(--ease-out);
    display: flex;
    flex-direction: column;
}

.book-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-border);
}

.book-card h3 {
    font-size: 1.3rem;
    margin-bottom: var(--space-sm);
}

.book-card h3 a {
    color: var(--color-text);
    text-decoration: none;
    transition: color var(--duration-fast) var(--ease-out);
}

.book-card h3 a:hover {
    color: var(--color-primary);
}

.book-card p {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
    flex: 1;
    max-width: none;
}

.book-card-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: var(--space-md);
    padding-top: var(--space-md);
    border-top: 1px solid var(--color-border-light);
    font-size: 0.82rem;
    color: var(--color-text-muted);
}

/* ---------- Badges ---------- */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.2rem 0.65rem;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    border-radius: 100px;
    line-height: 1.4;
}

.badge-active {
    background: rgba(94, 139, 101, 0.12);
    color: var(--color-success);
}

.badge-closed {
    background: rgba(196, 147, 51, 0.12);
    color: var(--color-warning);
}

.badge-archived {
    background: rgba(138, 127, 118, 0.12);
    color: var(--color-text-muted);
}

.badge-pending {
    background: rgba(196, 147, 51, 0.12);
    color: var(--color-warning);
}

/* ---------- Shareable Link ---------- */
.share-link {
    display: flex;
    gap: var(--space-sm);
    align-items: center;
    max-width: 600px;
}

.share-link input[type="text"] {
    flex: 1;
    padding: 0.7rem 0.9rem;
    font-family: var(--font-body);
    font-size: 0.9rem;
    color: var(--color-text);
    background: var(--color-bg);
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-md);
    outline: none;
}

.share-link input[type="text"]:focus {
    border-color: var(--color-border-focus);
    box-shadow: var(--shadow-glow);
}

.share-code {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: 0.05em;
    text-align: center;
    padding: var(--space-lg) 0;
}

/* ---------- Memory Stream (Public) ---------- */
.memory-stream {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
    margin-top: var(--space-xl);
}

.memory-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    box-shadow: var(--shadow-sm);
    transition: all var(--duration-normal) var(--ease-out);
    animation: fadeUp var(--duration-slow) var(--ease-out) both;
}

.memory-card:hover {
    box-shadow: var(--shadow-md);
}

.memory-card-text {
    font-family: var(--font-display);
    font-size: 1.2rem;
    line-height: 1.7;
    color: var(--color-text);
    max-width: none;
    font-weight: 400;
}

.memory-card-media {
    margin-top: var(--space-md);
}

.memory-card-media img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.memory-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: var(--space-md);
    padding-top: var(--space-md);
    border-top: 1px solid var(--color-border-light);
    font-size: 0.82rem;
    color: var(--color-text-muted);
}

/* ---------- Moderation Queue ---------- */
.mod-queue {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.mod-item {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    box-shadow: var(--shadow-sm);
}

.mod-item-header {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
    font-size: 0.85rem;
}

.mod-item-header strong {
    color: var(--color-text);
    font-size: 0.95rem;
}

.mod-item-header span {
    color: var(--color-text-muted);
}

.mod-item p {
    font-family: var(--font-display);
    font-size: 1.1rem;
    line-height: 1.7;
    color: var(--color-text);
    max-width: none;
    margin-bottom: var(--space-md);
}

.mod-item-actions {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    flex-wrap: wrap;
    padding-top: var(--space-md);
    border-top: 1px solid var(--color-border-light);
}

.mod-item-actions form {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
}

.mod-item-actions input[type="text"] {
    padding: 0.45rem 0.75rem;
    font-family: var(--font-body);
    font-size: 0.85rem;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-bg);
    outline: none;
    transition: all var(--duration-fast) var(--ease-out);
}

.mod-item-actions input[type="text"]:focus {
    border-color: var(--color-border-focus);
    box-shadow: var(--shadow-glow);
}

.mod-filters {
    display: flex;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
    flex-wrap: wrap;
}

/* Button variants for moderation */
.btn-approve {
    background: var(--color-success);
    color: white;
    box-shadow: 0 2px 8px rgba(94, 139, 101, 0.2);
}

.btn-approve:hover {
    background: #4d7a54;
    color: white;
    box-shadow: 0 4px 16px rgba(94, 139, 101, 0.3);
    transform: translateY(-1px);
}

.btn-reject {
    background: transparent;
    color: var(--color-error);
    border: 1.5px solid var(--color-error);
}

.btn-reject:hover {
    background: var(--color-error);
    color: white;
    transform: translateY(-1px);
}

/* ---------- Form Pages ---------- */
.form-page {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    min-height: calc(100vh - 300px);
    padding: var(--space-xl) var(--space-lg);
}

.form-card {
    width: 100%;
    max-width: 580px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    box-shadow: var(--shadow-lg);
    animation: fadeUp var(--duration-slow) var(--ease-out) both;
}

.form-card h1 {
    text-align: center;
    margin-bottom: var(--space-xs);
    font-size: 2rem;
}

.form-card-subtitle {
    text-align: center;
    color: var(--color-text-muted);
    font-size: 0.95rem;
    margin-bottom: var(--space-xl);
    max-width: none;
}

.form-card .form-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
    margin-top: var(--space-lg);
}

.form-card .form-footer a {
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

/* ---------- Danger Card (Delete) ---------- */
.danger-card {
    width: 100%;
    max-width: 500px;
    background: #fdf2f0;
    border: 1.5px solid rgba(192, 80, 62, 0.25);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    box-shadow: var(--shadow-lg);
    animation: fadeUp var(--duration-slow) var(--ease-out) both;
    text-align: center;
}

.danger-card h1 {
    color: var(--color-error);
    margin-bottom: var(--space-md);
    font-size: 1.8rem;
}

.danger-card p {
    color: var(--color-text-secondary);
    max-width: none;
    margin-bottom: var(--space-lg);
}

.danger-card .btn-danger {
    background: var(--color-error);
    color: white;
    box-shadow: 0 2px 8px rgba(192, 80, 62, 0.2);
}

.danger-card .btn-danger:hover {
    background: #a8412f;
    color: white;
    box-shadow: 0 4px 16px rgba(192, 80, 62, 0.3);
    transform: translateY(-1px);
}

.danger-card .form-footer {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-lg);
    margin-top: var(--space-lg);
}

/* ---------- Success Card ---------- */
.success-card {
    width: 100%;
    max-width: 500px;
    background: #f0f7f1;
    border: 1.5px solid rgba(94, 139, 101, 0.25);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    box-shadow: var(--shadow-lg);
    animation: fadeUp var(--duration-slow) var(--ease-out) both;
    text-align: center;
}

.success-card h1 {
    color: var(--color-success);
    margin-bottom: var(--space-md);
}

.success-card p {
    color: var(--color-text-secondary);
    max-width: none;
    margin-bottom: var(--space-md);
}

/* ---------- Verification Card ---------- */
.verify-card {
    width: 100%;
    max-width: 500px;
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    box-shadow: var(--shadow-lg);
    animation: fadeUp var(--duration-slow) var(--ease-out) both;
    text-align: center;
}

.verify-card.verify-success {
    background: #f0f7f1;
    border: 1.5px solid rgba(94, 139, 101, 0.25);
}

.verify-card.verify-success h1 {
    color: var(--color-success);
}

.verify-card.verify-error {
    background: #fdf2f0;
    border: 1.5px solid rgba(192, 80, 62, 0.25);
}

.verify-card.verify-error h1 {
    color: var(--color-error);
}

.verify-card p {
    color: var(--color-text-secondary);
    max-width: none;
    margin-top: var(--space-md);
}

/* ---------- Empty State ---------- */
.empty-state {
    text-align: center;
    padding: var(--space-3xl) var(--space-lg);
    color: var(--color-text-muted);
}

.empty-state-icon {
    font-size: 2.5rem;
    margin-bottom: var(--space-md);
    display: block;
    opacity: 0.6;
}

.empty-state h3 {
    font-size: 1.3rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-sm);
}

.empty-state p {
    max-width: 40ch;
    margin: 0 auto var(--space-lg);
    font-size: 0.95rem;
}

/* ---------- Public Page ---------- */
.public-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--space-xl);
    padding: var(--space-xl) var(--space-lg);
    animation: fadeUp var(--duration-slow) var(--ease-out) both;
}

.public-header h1 {
    font-size: clamp(2.2rem, 5vw, 3.5rem);
    margin-bottom: var(--space-md);
}

.public-header p {
    color: var(--color-text-secondary);
    font-size: 1.05rem;
    max-width: none;
    margin-bottom: var(--space-xl);
    line-height: 1.7;
}

/* ---------- Sharing Page ---------- */
.sharing-section {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    margin-bottom: var(--space-lg);
}

.sharing-section h2 {
    font-size: 1.1rem;
    margin-bottom: var(--space-md);
    color: var(--color-text-secondary);
}

.qr-preview {
    width: 200px;
    height: 200px;
    background: white;
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    padding: var(--space-md);
    margin-bottom: var(--space-lg);
    box-shadow: var(--shadow-sm);
}

.qr-preview svg {
    width: 100%;
    height: 100%;
}

.qr-actions {
    display: flex;
    gap: var(--space-sm);
}

/* ---------- Tables (Admin) ---------- */
.admin-nav {
    display: flex;
    gap: var(--space-sm);
    margin-bottom: var(--space-xl);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--color-border-light);
}

.admin-nav a {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--radius-sm);
    transition: all var(--duration-fast) var(--ease-out);
}

.admin-nav a:hover,
.admin-nav a.active {
    color: var(--color-primary);
    background: var(--color-primary-glow);
}

.table-wrapper {
    overflow-x: auto;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border-light);
    background: var(--color-bg-card);
}

.table-wrapper table {
    width: 100%;
    border-collapse: collapse;
}

.table-wrapper thead {
    background: var(--color-bg-warm);
}

.table-wrapper th {
    font-family: var(--font-body);
    font-size: 0.78rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
    padding: var(--space-md) var(--space-lg);
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.table-wrapper td {
    font-size: 0.9rem;
    color: var(--color-text);
    padding: var(--space-md) var(--space-lg);
    border-bottom: 1px solid var(--color-border-light);
}

.table-wrapper tbody tr:last-child td {
    border-bottom: none;
}

.table-wrapper tbody tr:hover {
    background: var(--color-bg-warm);
}

.admin-search {
    display: flex;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
    max-width: 400px;
}

.admin-search input[type="text"] {
    flex: 1;
    padding: 0.6rem 0.9rem;
    font-family: var(--font-body);
    font-size: 0.9rem;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-bg);
    outline: none;
    transition: all var(--duration-fast) var(--ease-out);
}

.admin-search input[type="text"]:focus {
    border-color: var(--color-border-focus);
    box-shadow: var(--shadow-glow);
}

/* ---------- Info Row (export status, digest info) ---------- */
.info-row {
    display: flex;
    gap: var(--space-lg);
    flex-wrap: wrap;
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
}

.info-row strong {
    color: var(--color-text);
}

/* ---------- Responsive ---------- */
@media (max-width: 640px) {
    header nav {
        padding: var(--space-sm) var(--space-md);
        gap: var(--space-sm);
    }

    .nav-links {
        gap: var(--space-sm);
    }

    .nav-links a {
        font-size: 0.82rem;
        padding: var(--space-xs);
    }

    .nav-logout-btn {
        font-size: 0.82rem;
        padding: var(--space-xs);
    }

    .nav-user {
        display: none;
    }

    .nav-separator {
        display: none;
    }

    .auth-card {
        padding: var(--space-xl) var(--space-lg);
        border-radius: var(--radius-lg);
    }

    .hero {
        padding: var(--space-xl) var(--space-md);
    }

    .hero-actions {
        flex-direction: column;
    }

    .hero-actions .btn {
        width: 100%;
    }

    .hero-features {
        grid-template-columns: 1fr;
        padding: 0 var(--space-md);
    }

    .page-header,
    .page-content {
        padding: 0 var(--space-md);
    }

    .page-header-row {
        flex-direction: column;
        align-items: flex-start;
    }

    .book-grid {
        grid-template-columns: 1fr;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .form-card,
    .danger-card,
    .success-card,
    .verify-card {
        padding: var(--space-xl) var(--space-lg);
        border-radius: var(--radius-lg);
    }

    .mod-item-actions {
        flex-direction: column;
        align-items: flex-start;
    }

    .share-link {
        flex-direction: column;
    }

    .share-link input[type="text"] {
        width: 100%;
    }

    .danger-card .form-footer {
        flex-direction: column;
    }

    .error-page {
        padding: var(--space-2xl) var(--space-md);
    }

    .error-actions {
        flex-direction: column;
    }

    .error-actions .btn {
        width: 100%;
    }

    .torn-page {
        width: 140px;
        height: 170px;
    }

    .torn-page-number {
        font-size: 2.5rem;
    }

    .sealed-book-cover {
        width: 110px;
        height: 140px;
    }
}

/* ==========================================================================
   Error Pages
   ========================================================================== */

.error-page {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    min-height: calc(100vh - 200px);
    padding: var(--space-3xl) var(--space-lg);
    animation: fadeUp var(--duration-slow) var(--ease-out) both;
}

.error-illustration {
    margin-bottom: var(--space-xl);
}

.error-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 600;
    line-height: 1.15;
    margin-bottom: var(--space-md);
    color: var(--color-text);
}

.error-subtitle {
    font-size: 1.05rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
    max-width: 440px;
    margin: 0 auto var(--space-xl);
}

.error-actions {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    flex-wrap: wrap;
}

.error-trail {
    display: flex;
    gap: 6px;
    margin-top: var(--space-3xl);
}

.error-trail-dot {
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--color-border);
    animation: trailPulse 2s ease-in-out infinite;
}

.error-trail-dot:nth-child(2) {
    animation-delay: 0.3s;
}

.error-trail-dot:nth-child(3) {
    animation-delay: 0.6s;
}

@keyframes trailPulse {
    0%, 100% { opacity: 0.3; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.4); }
}

/* ---------- Torn Page (404, 400) ---------- */

.torn-page {
    position: relative;
    width: 160px;
    height: 200px;
    margin: 0 auto;
}

.torn-page-inner {
    position: relative;
    width: 100%;
    height: 100%;
    background: var(--color-bg-card);
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    box-shadow: var(--shadow-md);
    overflow: hidden;
    animation: pageDrift 4s ease-in-out infinite;
}

.torn-page-number {
    display: block;
    font-family: var(--font-display);
    font-size: 3.2rem;
    font-weight: 700;
    color: var(--color-primary);
    text-align: center;
    padding-top: var(--space-xl);
    opacity: 0.7;
    letter-spacing: 0.05em;
}

.torn-edge {
    position: absolute;
    bottom: 0;
    left: -2px;
    right: -2px;
    height: 30px;
    background: var(--color-bg-card);
    clip-path: polygon(
        0% 0%, 5% 60%, 12% 20%, 20% 70%, 28% 30%,
        35% 80%, 42% 25%, 50% 65%, 58% 15%, 65% 75%,
        72% 35%, 80% 85%, 88% 20%, 95% 55%, 100% 0%,
        100% 100%, 0% 100%
    );
    border-bottom: none;
}

.torn-fragment {
    position: absolute;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border-light);
    opacity: 0;
    animation: fragmentDrift var(--duration-slow) var(--ease-out) forwards;
}

.torn-fragment-1 {
    width: 24px;
    height: 18px;
    bottom: -20px;
    left: 20px;
    clip-path: polygon(10% 0%, 90% 20%, 70% 100%, 0% 80%);
    transform: rotate(-15deg);
    animation-delay: 0.3s;
}

.torn-fragment-2 {
    width: 18px;
    height: 14px;
    bottom: -25px;
    right: 30px;
    clip-path: polygon(0% 10%, 100% 0%, 80% 100%, 20% 90%);
    transform: rotate(12deg);
    animation-delay: 0.5s;
}

.torn-fragment-3 {
    width: 12px;
    height: 10px;
    bottom: -15px;
    left: 70px;
    clip-path: polygon(20% 0%, 100% 30%, 60% 100%, 0% 60%);
    transform: rotate(-8deg);
    animation-delay: 0.7s;
}

@keyframes pageDrift {
    0%, 100% { transform: rotate(-1.5deg); }
    50% { transform: rotate(1deg); }
}

@keyframes fragmentDrift {
    from { opacity: 0; transform: translateY(-8px) rotate(0deg); }
    to { opacity: 0.6; transform: translateY(0) rotate(var(--frag-rotate, 5deg)); }
}

/* ---------- Sealed Book (403) ---------- */

.sealed-book {
    position: relative;
    margin: 0 auto;
    perspective: 600px;
}

.sealed-book-cover {
    position: relative;
    width: 130px;
    height: 170px;
    margin: 0 auto;
    background: linear-gradient(145deg, #5C524A 0%, #3D352F 100%);
    border-radius: 4px var(--radius-md) var(--radius-md) 4px;
    box-shadow:
        -4px 0 0 #4A423B,
        -6px 1px 0 #3D352F,
        var(--shadow-lg);
    animation: bookBreathe 3s ease-in-out infinite;
}

.sealed-book-cover::before {
    content: '';
    position: absolute;
    top: 12px;
    bottom: 12px;
    left: 12px;
    right: 12px;
    border: 1.5px solid rgba(212, 165, 116, 0.3);
    border-radius: 2px;
}

.sealed-book-cover::after {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 12px;
    background: linear-gradient(90deg, rgba(0,0,0,0.15), transparent);
    border-radius: 4px 0 0 4px;
}

.sealed-book-clasp {
    position: absolute;
    right: -8px;
    top: 50%;
    transform: translateY(-50%);
    width: 16px;
    height: 40px;
    background: linear-gradient(135deg, var(--color-primary-light), #A0794F);
    border-radius: 0 6px 6px 0;
    box-shadow: 1px 1px 3px rgba(0,0,0,0.2);
}

.sealed-book-keyhole {
    position: absolute;
    right: -4px;
    top: 50%;
    transform: translateY(-50%);
    width: 6px;
    height: 6px;
    background: #3D352F;
    border-radius: 50%;
    box-shadow: inset 0 1px 2px rgba(0,0,0,0.4);
}

.sealed-book-keyhole::after {
    content: '';
    position: absolute;
    top: 5px;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 6px;
    background: #3D352F;
    border-radius: 0 0 1px 1px;
}

@keyframes bookBreathe {
    0%, 100% { transform: rotateY(0deg) scale(1); }
    50% { transform: rotateY(-3deg) scale(1.01); }
}

/* ---------- Pagination ---------- */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    margin-top: var(--space-xl);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-border-light);
}

.pagination-info {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}
