/* ============================================================
   📔 My Scrapbook — Modern Elegant Wedding Scrapbook
   ============================================================ */

/* ────────────────────────────────────────────────────────────
   1. FONTS & VARIABLES
   ──────────────────────────────────────────────────────────── */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,500;0,600;1,300;1,400&family=Montserrat:wght@300;400;500;600&family=Playfair+Display:ital,wght@0,400;0,500;0,600;0,700;1,400;1,500&display=swap');

:root {
    --ivory: #faf8f5;
    --cream: #f5f0eb;
    --blush: #e8d5c8;
    --blush-light: #f2e6de;
    --sage: #b5c4b1;
    --sage-light: #d4e0d0;
    --sage-dark: #8fa88a;
    --gold: #c9a96e;
    --gold-light: #dfc494;
    --gold-dark: #a8874d;
    --charcoal: #2c2c2c;
    --graphite: #4a4a4a;
    --mist: #8a8a8a;
    --frost: #b8b8b8;
    --white: #ffffff;
    --rose: #d4a0a0;
    --rose-light: #e8c4c4;

    --bg: var(--ivory);
    --bg-alt: var(--cream);
    --surface: var(--white);
    --surface-hover: #faf8f5;
    --glass: rgba(255, 255, 255, 0.72);
    --glass-border: rgba(255, 255, 255, 0.3);

    --shadow-sm: 0 1px 3px rgba(44, 44, 44, 0.04), 0 1px 2px rgba(44, 44, 44, 0.06);
    --shadow-md: 0 4px 16px rgba(44, 44, 44, 0.06), 0 2px 6px rgba(44, 44, 44, 0.04);
    --shadow-lg: 0 12px 40px rgba(44, 44, 44, 0.08), 0 4px 12px rgba(44, 44, 44, 0.04);
    --shadow-xl: 0 24px 60px rgba(44, 44, 44, 0.10), 0 8px 20px rgba(44, 44, 44, 0.06);

    --font-display: 'Playfair Display', Georgia, serif;
    --font-body: 'Cormorant Garamond', 'Times New Roman', serif;
    --font-sans: 'Montserrat', -apple-system, sans-serif;
    --fs-xs: 0.75rem;
    --fs-sm: 0.875rem;
    --fs-base: 1.0625rem;
    --fs-lg: 1.25rem;
    --fs-xl: 1.5rem;
    --fs-2xl: 2rem;
    --fs-3xl: 2.75rem;
    --fs-4xl: 3.5rem;
    --fs-hero: 4.5rem;

    --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-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
    --duration-fast: 0.15s;
    --duration-normal: 0.3s;
    --duration-slow: 0.6s;
    --duration-xl: 1s;
}

/* ────────────────────────────────────────────────────────────
   2. RESET & BASE
   ──────────────────────────────────────────────────────────── */

*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-body);
    font-size: var(--fs-base);
    font-weight: 400;
    line-height: 1.7;
    color: var(--charcoal);
    background-color: var(--bg);
    background-image:
        radial-gradient(ellipse at 20% 0%, rgba(232, 213, 200, 0.25) 0%, transparent 60%),
        radial-gradient(ellipse at 80% 100%, rgba(181, 196, 177, 0.12) 0%, transparent 50%);
    min-height: 100vh;
    overflow-x: hidden;
    padding: var(--space-lg);
}

::selection {
    background: var(--blush);
    color: var(--charcoal);
}

.container {
    max-width: 1320px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

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

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

/* ────────────────────────────────────────────────────────────
   3. KEYFRAME ANIMATIONS
   ──────────────────────────────────────────────────────────── */

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

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-6px); }
}

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

@keyframes toastSlide {
    from {
        opacity: 0;
        transform: translateX(100%) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateX(0) scale(1);
    }
}

@keyframes toastExit {
    from {
        opacity: 1;
        transform: translateX(0) scale(1);
    }
    to {
        opacity: 0;
        transform: translateX(100%) scale(0.95);
    }
}

@keyframes progressShrink {
    from { width: 100%; }
    to { width: 0%; }
}

@keyframes lightboxIn {
    from {
        opacity: 0;
        transform: scale(0.92);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes confirmIn {
    from {
        opacity: 0;
        transform: scale(0.9) translateY(10px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

@keyframes heroFloat {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    33% { transform: translateY(-8px) rotate(1deg); }
    66% { transform: translateY(-4px) rotate(-0.5deg); }
}

@keyframes lineExpand {
    from { width: 0; }
    to { width: 60px; }
}

@keyframes letterReveal {
    from {
        opacity: 0;
        transform: translateY(20px) rotateX(-15deg);
    }
    to {
        opacity: 1;
        transform: translateY(0) rotateX(0);
    }
}

/* ────────────────────────────────────────────────────────────
   4. SCROLL ANIMATIONS
   ──────────────────────────────────────────────────────────── */

.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--duration-slow) var(--ease-out),
                transform var(--duration-slow) var(--ease-out);
}

.animate-on-scroll.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* ────────────────────────────────────────────────────────────
   5. NAVBAR — Glass morphism, minimal
   ──────────────────────────────────────────────────────────── */

.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 1.25rem var(--space-lg);
    background: var(--glass);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--glass-border);
    transition: all var(--duration-normal) var(--ease-out);
}

.navbar.scrolled {
    padding: 0.75rem 0;
    box-shadow: var(--shadow-md);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 500;
    letter-spacing: -0.02em;
    color: var(--charcoal);
    transition: all var(--duration-normal) var(--ease-out);
}

.logo:hover {
    color: var(--gold);
    transform: translateY(-1px);
}

.logo::before {
    content: '✦';
    margin-right: 0.5rem;
    font-size: 0.75rem;
    color: var(--gold);
    vertical-align: middle;
}

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

/* ────────────────────────────────────────────────────────────
   6. BUTTONS — Refined, elegant
   ──────────────────────────────────────────────────────────── */

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.75rem;
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    text-decoration: none;
    font-family: var(--font-sans);
    font-size: var(--fs-sm);
    font-weight: 500;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    transition: all var(--duration-normal) var(--ease-out);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.2), transparent);
    opacity: 0;
    transition: opacity var(--duration-normal) var(--ease-out);
}

.btn:hover::before {
    opacity: 1;
}

.btn-primary {
    background: linear-gradient(135deg, var(--charcoal) 0%, var(--graphite) 100%);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    color: var(--white);
}

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

.btn-secondary:hover {
    border-color: var(--charcoal);
    background: var(--surface);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
    color: var(--charcoal);
}

.btn-danger {
    background: transparent;
    color: var(--rose);
    border: 1.5px solid var(--rose-light);
}

.btn-danger:hover {
    background: var(--rose-light);
    border-color: var(--rose);
    color: var(--charcoal);
}

.btn-sm {
    padding: 0.5rem 1.25rem;
    font-size: var(--fs-xs);
}

.btn-lg {
    padding: 1rem 2.5rem;
    font-size: var(--fs-base);
}

.btn-icon {
    font-size: 0.875rem;
}

/* ────────────────────────────────────────────────────────────
   7. HERO — Full-bleed, editorial
   ──────────────────────────────────────────────────────────── */

.hero {
    position: relative;
    min-height: 85vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: linear-gradient(160deg, var(--cream) 0%, var(--blush-light) 50%, var(--sage-light) 100%);
    padding: var(--space-2xl) var(--space-lg);
}

.hero-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.hero-particles {
    position: absolute;
    inset: 0;
}

.particle {
    position: absolute;
    font-size: var(--fs-xl);
    color: var(--white);
    opacity: 0.4;
    animation: heroFloat 8s ease-in-out infinite;
    animation-delay: var(--delay);
    left: var(--x);
    filter: blur(0.5px);
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: var(--space-3xl) var(--space-lg);
    max-width: 800px;
}

.hero-title {
    font-family: var(--font-display);
    font-size: var(--fs-hero);
    font-weight: 400;
    line-height: 1.1;
    letter-spacing: -0.03em;
    color: var(--charcoal);
    margin-bottom: var(--space-lg);
    animation: letterReveal 1s var(--ease-out) backwards;
}

.hero-subtitle {
    font-family: var(--font-body);
    font-size: var(--fs-xl);
    font-weight: 300;
    font-style: italic;
    color: var(--graphite);
    margin-bottom: var(--space-2xl);
    animation: fadeInUp 1s var(--ease-out) 0.3s backwards;
}

.hero-cta {
    animation: fadeInUp 1s var(--ease-out) 0.6s backwards;
}

.hero-divider {
    width: 60px;
    height: 1px;
    background: var(--gold);
    margin: var(--space-xl) auto;
    animation: lineExpand 1.2s var(--ease-out) 0.5s backwards;
}

/* ────────────────────────────────────────────────────────────
   8. TRIPS MASONRY — Clean, airy
   ──────────────────────────────────────────────────────────── */

.trips-section {
    padding: var(--space-3xl) var(--space-lg);
}

.trips-masonry {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: var(--space-xl);
}

.trip-card {
    position: relative;
    background: var(--surface);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--duration-slow) var(--ease-out);
    transform: rotate(var(--start-rotation, 0deg));
}

.trip-card:hover {
    transform: rotate(0deg) translateY(-6px);
    box-shadow: var(--shadow-xl);
}

.trip-card-inner {
    padding: var(--space-xl);
}

.trip-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--space-md);
    gap: var(--space-md);
}

.trip-card-title {
    font-family: var(--font-display);
    font-size: var(--fs-2xl);
    font-weight: 500;
    line-height: 1.2;
    color: var(--charcoal);
}

.trip-actions {
    display: flex;
    gap: var(--space-sm);
    flex-shrink: 0;
}

.trip-description {
    font-size: var(--fs-base);
    color: var(--mist);
    line-height: 1.6;
    margin-bottom: var(--space-md);
}

.trip-dates {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-sans);
    font-size: var(--fs-xs);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--frost);
    margin-bottom: var(--space-lg);
}

.date-icon {
    font-size: var(--fs-sm);
}

.date-separator {
    margin: 0 var(--space-xs);
}

.trip-entries-count {
    font-family: var(--font-sans);
    font-size: var(--fs-xs);
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--gold);
    margin-bottom: var(--space-lg);
}

.trip-card-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
}

.arrow {
    transition: transform var(--duration-normal) var(--ease-out);
}

.trip-card:hover .arrow {
    transform: translateX(4px);
}

/* ────────────────────────────────────────────────────────────
   9. TRIP DETAIL — Editorial layout
   ──────────────────────────────────────────────────────────── */

.trip-header {
    background: var(--surface);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl) var(--space-2xl);
    margin: var(--space-2xl) 0;
    box-shadow: var(--shadow-md);
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--space-xl);
}

.trip-title {
    font-family: var(--font-display);
    font-size: var(--fs-3xl);
    font-weight: 400;
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: var(--charcoal);
    margin-bottom: var(--space-md);
}

.trip-header-actions {
    display: flex;
    gap: var(--space-md);
    flex-shrink: 0;
}

/* ────────────────────────────────────────────────────────────
   10. SCRAPBOOK MASONRY — Full-bleed images
   ──────────────────────────────────────────────────────────── */

.scrapbook-masonry {
    columns: 3;
    column-gap: var(--space-lg);
    padding: var(--space-xl) 0;
}

@media (max-width: 1024px) {
    .scrapbook-masonry {
        columns: 2;
    }
}

@media (max-width: 640px) {
    .scrapbook-masonry {
        columns: 1;
    }
}

.scrapbook-entry {
    break-inside: avoid;
    margin-bottom: var(--space-lg);
    background: var(--surface);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--duration-slow) var(--ease-out);
}

.scrapbook-entry:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.entry-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 4/5;
}

.entry-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--duration-xl) var(--ease-out);
}

.scrapbook-entry:hover .entry-image img {
    transform: scale(1.05);
}

.entry-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--cream) 0%, var(--blush-light) 100%);
    font-size: 3rem;
}

.entry-content {
    padding: var(--space-lg);
}

.entry-title {
    font-family: var(--font-display);
    font-size: var(--fs-lg);
    font-weight: 500;
    line-height: 1.3;
    color: var(--charcoal);
    margin-bottom: var(--space-sm);
}

.entry-description {
    font-size: var(--fs-sm);
    color: var(--mist);
    line-height: 1.6;
    margin-bottom: var(--space-md);
}

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

/* ────────────────────────────────────────────────────────────
   11. FORMS — Clean, minimal
   ──────────────────────────────────────────────────────────── */

.form-container {
    max-width: 680px;
    margin: var(--space-2xl) auto;
    background: var(--surface);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    box-shadow: var(--shadow-lg);
}

.form-page {
    position: relative;
}

.form-header {
    margin-bottom: var(--space-2xl);
    text-align: center;
}

.form-title {
    font-family: var(--font-display);
    font-size: var(--fs-2xl);
    font-weight: 400;
    letter-spacing: -0.02em;
    color: var(--charcoal);
    margin-bottom: var(--space-sm);
}

.form-subtitle {
    font-family: var(--font-body);
    font-style: italic;
    color: var(--mist);
    font-size: var(--fs-base);
}

.scrapbook-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

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

.form-group label {
    font-family: var(--font-sans);
    font-size: var(--fs-xs);
    font-weight: 500;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--graphite);
}

.required {
    color: var(--rose);
}

.form-input,
.form-textarea {
    width: 100%;
    padding: 0.875rem 1.25rem;
    border: 1.5px solid var(--frost);
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: var(--fs-base);
    color: var(--charcoal);
    background: var(--surface);
    transition: all var(--duration-normal) var(--ease-out);
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--gold);
    box-shadow: 0 0 0 3px rgba(201, 169, 110, 0.1);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--frost);
    font-style: italic;
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
}

@media (max-width: 640px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}

.form-actions {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
    margin-top: var(--space-lg);
}

.form-help {
    font-family: var(--font-sans);
    font-size: var(--fs-xs);
    color: var(--mist);
}

.file-upload-wrapper {
    position: relative;
}

.file-input {
    display: none;
}

.file-upload-label {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-xl);
    border: 2px dashed var(--frost);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--duration-normal) var(--ease-out);
    text-align: center;
}

.file-upload-label:hover {
    border-color: var(--gold);
    background: rgba(201, 169, 110, 0.03);
}

.file-upload-icon {
    font-size: 2rem;
}

.file-upload-text {
    font-family: var(--font-sans);
    font-size: var(--fs-sm);
    color: var(--mist);
}

.file-upload-preview {
    margin-top: var(--space-md);
    padding: var(--space-md);
    background: var(--bg-alt);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.preview-thumb {
    width: 60px;
    height: 60px;
    object-fit: cover;
    border-radius: var(--radius-sm);
}

.preview-name {
    font-family: var(--font-sans);
    font-size: var(--fs-xs);
    color: var(--graphite);
}

/* Drag and Drop States */
.file-upload-label.dragover {
    border-color: var(--gold);
    background: rgba(201, 169, 110, 0.08);
    transform: scale(1.02);
}

.file-upload-label.dragover .file-upload-icon {
    transform: scale(1.1);
}

.file-upload-label.dragover .file-upload-text {
    color: var(--gold-dark);
    font-weight: 500;
}

.file-upload-wrapper.dragover {
    border-color: var(--gold);
    background: rgba(201, 169, 110, 0.05);
}

/* ────────────────────────────────────────────────────────────
   12. EMPTY STATE — Elegant
   ──────────────────────────────────────────────────────────── */

.empty-state {
    text-align: center;
    padding: var(--space-3xl) var(--space-lg);
}

.empty-state-icon {
    font-size: 4rem;
    margin-bottom: var(--space-lg);
    opacity: 0.6;
}

.empty-state p {
    font-family: var(--font-body);
    font-size: var(--fs-xl);
    font-style: italic;
    color: var(--mist);
    margin-bottom: var(--space-xl);
}

/* ────────────────────────────────────────────────────────────
   13. FOOTER — Minimal
   ──────────────────────────────────────────────────────────── */

.footer {
    text-align: center;
    padding: var(--space-2xl) var(--space-lg);
    margin-top: var(--space-3xl);
    border-top: 1px solid var(--frost);
}

.footer-text {
    font-family: var(--font-sans);
    font-size: var(--fs-xs);
    letter-spacing: 0.05em;
    color: var(--mist);
}

/* ────────────────────────────────────────────────────────────
   14. TOAST NOTIFICATIONS — Glass morphism
   ──────────────────────────────────────────────────────────── */

.toast-container {
    position: fixed;
    top: 100px;
    right: 24px;
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    max-width: 380px;
    pointer-events: none;
}

.toast {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-lg);
    background: var(--glass);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-lg);
    pointer-events: auto;
    opacity: 0;
    transform: translateX(100%);
    animation: toastSlide 0.4s var(--ease-out) forwards;
}

.toast.is-dismissing {
    animation: toastExit 0.3s var(--ease-out) forwards;
}

.toast-success {
    border-left: 3px solid var(--sage-dark);
}

.toast-error {
    border-left: 3px solid var(--rose);
}

.toast-info {
    border-left: 3px solid var(--gold);
}

.toast-icon {
    font-size: 1.25rem;
    flex-shrink: 0;
}

.toast-success .toast-icon { color: var(--sage-dark); }
.toast-error .toast-icon { color: var(--rose); }
.toast-info .toast-icon { color: var(--gold); }

.toast-message {
    flex: 1;
    font-family: var(--font-sans);
    font-size: var(--fs-sm);
    color: var(--charcoal);
    line-height: 1.4;
}

.toast-close {
    background: none;
    border: none;
    font-size: 1.25rem;
    cursor: pointer;
    color: var(--mist);
    padding: 0;
    line-height: 1;
    opacity: 0.6;
    transition: opacity var(--duration-fast) var(--ease-out);
}

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

.toast-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 2px;
    background: currentColor;
    opacity: 0.2;
    animation: progressShrink linear forwards;
}

/* ────────────────────────────────────────────────────────────
   15. LIGHTBOX — Minimal, elegant
   ──────────────────────────────────────────────────────────── */

.lightbox-overlay {
    position: fixed;
    inset: 0;
    z-index: 10000;
    background: rgba(44, 44, 44, 0.92);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--duration-normal) var(--ease-out);
}

.lightbox-overlay.is-active {
    opacity: 1;
    visibility: visible;
}

.lightbox-content {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
    animation: lightboxIn 0.4s var(--ease-out);
}

.lightbox-image {
    max-width: 100%;
    max-height: 85vh;
    object-fit: contain;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
}

.lightbox-caption {
    text-align: center;
    margin-top: var(--space-md);
    font-family: var(--font-body);
    font-style: italic;
    color: var(--cream);
    font-size: var(--fs-lg);
}

.lightbox-close,
.lightbox-prev,
.lightbox-next {
    position: absolute;
    background: none;
    border: none;
    color: var(--cream);
    cursor: pointer;
    transition: all var(--duration-normal) var(--ease-out);
    z-index: 10;
}

.lightbox-close {
    top: -50px;
    right: 0;
    font-size: 2rem;
    opacity: 0.7;
}

.lightbox-close:hover {
    opacity: 1;
    transform: rotate(90deg);
}

.lightbox-prev,
.lightbox-next {
    top: 50%;
    transform: translateY(-50%);
    font-size: 3rem;
    padding: var(--space-md);
    opacity: 0.5;
}

.lightbox-prev { left: -60px; }
.lightbox-next { right: -60px; }

.lightbox-prev:hover,
.lightbox-next:hover {
    opacity: 1;
}

/* ────────────────────────────────────────────────────────────
   16. CONFIRM DIALOG — Elegant modal
   ──────────────────────────────────────────────────────────── */

.confirm-overlay {
    position: fixed;
    inset: 0;
    z-index: 10001;
    background: rgba(44, 44, 44, 0.6);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--duration-normal) var(--ease-out);
}

.confirm-overlay.is-active {
    opacity: 1;
    visibility: visible;
}

.confirm-dialog {
    background: var(--surface);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    max-width: 420px;
    width: 90%;
    box-shadow: var(--shadow-xl);
    text-align: center;
    animation: confirmIn 0.3s var(--ease-out);
}

.confirm-icon {
    font-size: 3rem;
    margin-bottom: var(--space-md);
    opacity: 0.8;
}

.confirm-message {
    font-family: var(--font-body);
    font-size: var(--fs-lg);
    color: var(--charcoal);
    margin-bottom: var(--space-xl);
    line-height: 1.5;
}

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

/* ────────────────────────────────────────────────────────────
   17. LOADING SPINNER
   ──────────────────────────────────────────────────────────── */

.spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: var(--white);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

.btn.is-loading {
    pointer-events: none;
    opacity: 0.8;
}

.btn-text {
    margin-left: var(--space-sm);
}

/* ────────────────────────────────────────────────────────────
   18. SLIDESHOW — Hero background slideshow
   ──────────────────────────────────────────────────────────── */

.slideshow-container {
    position: absolute;
    inset: 0;
    overflow: hidden;
    z-index: 1;
}

.slideshow-slide {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    opacity: 0;
    animation: slideshowFade 20s infinite;
}

.slideshow-slide:nth-child(1) { animation-delay: 0s; }
.slideshow-slide:nth-child(2) { animation-delay: 5s; }
.slideshow-slide:nth-child(3) { animation-delay: 10s; }
.slideshow-slide:nth-child(4) { animation-delay: 15s; }

@keyframes slideshowFade {
    0%, 20% { opacity: 0; }
    25%, 45% { opacity: 0.4; }
    50%, 100% { opacity: 0; }
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 2;
}

.hero-content {
    position: relative;
    z-index: 3;
}

/* ────────────────────────────────────────────────────────────
   19. AUTHENTICATION — Login/Register Pages
   ──────────────────────────────────────────────────────────── */

.auth-container {
    min-height: calc(100vh - 200px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-2xl) var(--space-lg);
}

.auth-card {
    background: var(--surface);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    max-width: 440px;
    width: 100%;
    box-shadow: var(--shadow-lg);
}

.auth-header {
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.auth-title {
    font-family: var(--font-display);
    font-size: var(--fs-2xl);
    font-weight: 500;
    letter-spacing: -0.02em;
    color: var(--charcoal);
    margin-bottom: var(--space-sm);
}

.auth-subtitle {
    font-family: var(--font-body);
    font-style: italic;
    color: var(--mist);
    font-size: var(--fs-base);
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.auth-footer {
    text-align: center;
    margin-top: var(--space-xl);
    padding-top: var(--space-xl);
    border-top: 1px solid var(--frost);
}

.auth-footer p {
    font-family: var(--font-sans);
    font-size: var(--fs-sm);
    color: var(--mist);
}

.auth-footer a {
    color: var(--gold);
    font-weight: 500;
    transition: color var(--duration-fast) var(--ease-out);
}

.auth-footer a:hover {
    color: var(--gold-dark);
}

.btn-block {
    width: 100%;
    justify-content: center;
}

/* ────────────────────────────────────────────────────────────
   20. ADMIN CONSOLE
   ──────────────────────────────────────────────────────────── */

.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-2xl);
    padding-bottom: var(--space-lg);
    border-bottom: 2px solid var(--gold-light);
}

.admin-header h1 {
    font-family: var(--font-display);
    font-size: var(--fs-3xl);
    font-weight: 500;
    color: var(--charcoal);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-lg);
    margin-bottom: var(--space-2xl);
}

.stat-card {
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    text-align: center;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--glass-border);
    transition: all var(--duration-normal) var(--ease-out);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.stat-number {
    font-family: var(--font-display);
    font-size: var(--fs-3xl);
    font-weight: 600;
    color: var(--gold);
    margin-bottom: var(--space-xs);
}

.stat-label {
    font-family: var(--font-sans);
    font-size: var(--fs-sm);
    color: var(--mist);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.admin-actions {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-2xl);
}

.admin-section {
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    margin-bottom: var(--space-xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--glass-border);
}

.admin-section h2 {
    font-family: var(--font-display);
    font-size: var(--fs-xl);
    font-weight: 500;
    color: var(--charcoal);
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--frost);
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
    font-family: var(--font-sans);
    font-size: var(--fs-sm);
}

.admin-table th,
.admin-table td {
    padding: var(--space-md);
    text-align: left;
    border-bottom: 1px solid var(--blush-light);
}

.admin-table th {
    background: var(--bg-alt);
    font-weight: 600;
    color: var(--graphite);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: var(--fs-xs);
}

.admin-table tr:hover {
    background: var(--surface-hover);
}

.admin-table .actions {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

.badge {
    display: inline-block;
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-full);
    font-size: var(--fs-xs);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.badge-admin {
    background: var(--gold-light);
    color: var(--gold-dark);
}

.badge-user {
    background: var(--sage-light);
    color: var(--sage-dark);
}

.badge-verified {
    background: var(--sage);
    color: var(--white);
}

.badge-unverified {
    background: var(--frost);
    color: var(--graphite);
}

.admin-form {
    max-width: 600px;
}

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

.form-group label {
    display: block;
    margin-bottom: var(--space-xs);
    font-family: var(--font-sans);
    font-size: var(--fs-sm);
    font-weight: 500;
    color: var(--graphite);
}

.form-control {
    width: 100%;
    padding: var(--space-md);
    border: 1px solid var(--frost);
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: var(--fs-base);
    transition: all var(--duration-fast) var(--ease-out);
}

.form-control:focus {
    outline: none;
    border-color: var(--gold);
    box-shadow: 0 0 0 3px rgba(201, 169, 110, 0.1);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.form-text {
    display: block;
    margin-top: var(--space-xs);
    font-size: var(--fs-xs);
    color: var(--mist);
}

.form-info {
    background: var(--bg-alt);
    padding: var(--space-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-xl);
}

.form-info p {
    margin-bottom: var(--space-xs);
    font-family: var(--font-sans);
    font-size: var(--fs-sm);
    color: var(--graphite);
}

.form-info p:last-child {
    margin-bottom: 0;
}

.form-actions {
    display: flex;
    gap: var(--space-md);
    margin-top: var(--space-xl);
}

.btn-admin {
    background: var(--gold);
    color: var(--white);
    border: none;
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--radius-md);
    font-family: var(--font-sans);
    font-size: var(--fs-sm);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--duration-fast) var(--ease-out);
}

.btn-admin:hover {
    background: var(--gold-dark);
    transform: translateY(-2px);
}

.btn-warning {
    background: var(--rose);
    color: var(--white);
    border: none;
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--radius-sm);
    font-family: var(--font-sans);
    font-size: var(--fs-xs);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--duration-fast) var(--ease-out);
}

.btn-warning:hover {
    background: var(--rose-light);
}

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

.page-info {
    font-family: var(--font-sans);
    font-size: var(--fs-sm);
    color: var(--mist);
}

/* ────────────────────────────────────────────────────────────
   21. RESPONSIVE
   ──────────────────────────────────────────────────────────── */

/* Mobile menu toggle */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-sm);
    min-width: 44px;
    min-height: 44px;
    align-items: center;
    justify-content: center;
}

.hamburger,
.hamburger::before,
.hamburger::after {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--charcoal);
    transition: all var(--duration-normal) var(--ease-out);
}

.hamburger {
    position: relative;
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    left: 0;
}

.hamburger::before {
    top: -8px;
}

.hamburger::after {
    top: 8px;
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger {
    background: transparent;
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger::before {
    top: 0;
    transform: rotate(45deg);
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger::after {
    top: 0;
    transform: rotate(-45deg);
}

@media (max-width: 768px) {
    :root {
        --fs-hero: 3rem;
        --fs-3xl: 2rem;
        --fs-4xl: 2.5rem;
    }

    .hero {
        min-height: 70vh;
    }

    .trip-header {
        flex-direction: column;
        align-items: stretch;
    }

    .trip-header-actions {
        justify-content: stretch;
    }

    .trip-header-actions .btn {
        flex: 1;
        justify-content: center;
    }

    .trips-masonry {
        grid-template-columns: 1fr;
    }

    .form-container {
        padding: var(--space-lg);
    }

    .lightbox-prev { left: 10px; }
    .lightbox-next { right: 10px; }
    
    /* Mobile navigation */
    .mobile-menu-toggle {
        display: flex;
    }
    
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--glass);
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
        padding: var(--space-md);
        flex-direction: column;
        gap: var(--space-sm);
        box-shadow: var(--shadow-lg);
        border-top: 1px solid var(--glass-border);
    }
    
    .nav-links.is-open {
        display: flex;
    }
    
    .nav-links .btn {
        width: 100%;
        text-align: center;
        min-height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .user-greeting {
        display: none;
    }
    
    /* Stack form rows on mobile */
    .form-row {
        flex-direction: column;
        gap: var(--space-md);
    }
    
    /* Improve touch targets */
    .btn,
    .btn-sm,
    a.btn {
        min-height: 44px;
        min-width: 44px;
    }
    
    /* Lightbox swipe support */
    .lightbox-prev,
    .lightbox-next {
        width: 50px;
        height: 100px;
        top: 50%;
        transform: translateY(-50%);
    }
    
    .lightbox-prev { left: 10px; }
    .lightbox-next { right: 10px; }
    
    /* Reduce particle animation on mobile for performance */
    .particle {
        animation-duration: 4s !important;
    }
}

/* Small mobile devices */
@media (max-width: 480px) {
    .hero {
        min-height: 60vh;
    }
    
    .hero-title {
        font-size: var(--fs-3xl);
    }
    
    .trip-card {
        margin: var(--space-sm);
    }
    
    .form-container {
        padding: var(--space-md);
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .form-actions .btn {
        width: 100%;
    }
}