/* ==========================================
   VARIABLES & RESET
   ========================================== */

:root {
    /* Colors - Warm Editorial Palette */
    --cream: #FFFCF7;
    --beige-light: #F5F1E8;
    --beige: #EAE4D8;
    --beige-dark: #D4CCC0;
    --gold: #C9A961;
    --gold-dark: #B8935E;
    --brown: #4A3F35;
    --brown-light: #6B5F53;

    /* Typography */
    --font-display: 'Cormorant Garamond', serif;
    --font-body: 'Crimson Text', serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    --spacing-xxl: 8rem;

    /* Transitions */
    --transition-smooth: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.3s ease;
}

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

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

body {
    font-family: var(--font-body);
    color: var(--brown);
    background-color: var(--cream);
    line-height: 1.8;
    overflow-x: hidden;
}

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

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
}

/* ==========================================
   COVER SECTION
   ========================================== */

.section-cover {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    z-index: 1000;
    transition: opacity 0.8s ease, visibility 0.8s ease;
}

.section-cover.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.cover-image-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.cover-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    filter: grayscale(20%) brightness(0.9);
}

.cover-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        135deg,
        rgba(234, 228, 216, 0.85) 0%,
        rgba(245, 241, 232, 0.75) 50%,
        rgba(255, 252, 247, 0.65) 100%
    );
}

.cover-content {
    position: relative;
    z-index: 2;
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: var(--spacing-md);
}

.cover-title {
    font-family: var(--font-display);
    font-weight: 300;
    letter-spacing: 0.02em;
    margin-bottom: var(--spacing-lg);
    animation: fadeInUp 1.2s ease;
}

.cover-name {
    display: block;
    font-size: clamp(3rem, 8vw, 6rem);
    color: var(--brown);
    margin-bottom: var(--spacing-xs);
    font-weight: 400;
}

.cover-subtitle {
    display: block;
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    color: var(--gold);
    font-style: italic;
    font-weight: 300;
}

.cover-quote {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--brown-light);
    max-width: 600px;
    line-height: 2;
    margin-bottom: var(--spacing-lg);
    opacity: 0;
    animation: fadeIn 1.5s ease 0.5s forwards;
}

.btn-enter {
    font-family: var(--font-display);
    font-size: 1.25rem;
    color: var(--cream);
    background: var(--gold);
    padding: 1rem 3rem;
    border-radius: 2px;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    font-weight: 500;
    transition: var(--transition-fast);
    position: relative;
    overflow: hidden;
    opacity: 0;
    animation: fadeIn 1.5s ease 0.8s forwards;
}

.btn-enter::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: var(--gold-dark);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
    z-index: -1;
}

.btn-enter:hover::before {
    width: 300px;
    height: 300px;
}

.btn-enter:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(201, 169, 97, 0.3);
}

.cover-decoration {
    position: absolute;
    bottom: var(--spacing-lg);
    left: 50%;
    transform: translateX(-50%);
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, transparent, var(--gold), transparent);
    opacity: 0;
    animation: fadeIn 2s ease 1.2s forwards;
}

/* ==========================================
   PASSWORD SECTION
   ========================================== */

.section-password {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: var(--beige-light);
    z-index: 999;
    display: none;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity 0.6s ease;
}

.section-password.active {
    display: flex;
    opacity: 1;
}

.section-password.hidden {
    opacity: 0;
    pointer-events: none;
}

.password-container {
    text-align: center;
    padding: var(--spacing-md);
    max-width: 500px;
}

.password-message {
    font-family: var(--font-display);
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    color: var(--brown);
    line-height: 1.8;
    margin-bottom: var(--spacing-lg);
    font-style: italic;
    font-weight: 300;
}

.password-input-group {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.password-input {
    flex: 1;
    font-family: var(--font-body);
    font-size: 1.125rem;
    padding: 1rem 1.5rem;
    border: 2px solid var(--beige-dark);
    background: var(--cream);
    color: var(--brown);
    transition: var(--transition-fast);
}

.password-input:focus {
    outline: none;
    border-color: var(--gold);
    background: white;
}

.btn-submit {
    font-size: 1.5rem;
    color: var(--cream);
    background: var(--gold);
    width: 60px;
    transition: var(--transition-fast);
}

.btn-submit:hover {
    background: var(--gold-dark);
    transform: translateX(3px);
}

.password-hint {
    font-size: 0.9rem;
    color: #c75450;
    min-height: 1.5rem;
}

/* ==========================================
   MAIN CONTENT
   ========================================== */

.main-content {
    display: none;
    padding-top: var(--spacing-xxl);
}

.main-content.active {
    display: block;
}

/* ==========================================
   CHAPTER NAVIGATION
   ========================================== */

.chapter-nav {
    position: fixed;
    right: var(--spacing-lg);
    top: 50%;
    transform: translateY(-50%);
    z-index: 100;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.nav-line {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background: var(--beige-dark);
}

.nav-dot {
    position: relative;
    width: 12px;
    height: 12px;
    background: var(--beige);
    border-radius: 50%;
    transition: var(--transition-fast);
    z-index: 2;
    align-self: center;
}

.nav-dot::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 20px;
    height: 20px;
    border: 2px solid transparent;
    border-radius: 50%;
    transition: var(--transition-fast);
}

.nav-dot.active,
.nav-dot:hover {
    background: var(--gold);
    transform: scale(1.3);
}

.nav-dot.active::before,
.nav-dot:hover::before {
    border-color: var(--gold);
}

.nav-label {
    position: absolute;
    right: calc(100% + var(--spacing-md));
    top: 50%;
    transform: translateY(-50%);
    font-family: var(--font-display);
    font-size: 0.9rem;
    color: var(--brown-light);
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition-fast);
}

.nav-dot:hover .nav-label,
.nav-dot.active .nav-label {
    opacity: 1;
}

/* ==========================================
   CHAPTERS
   ========================================== */

.chapter {
    position: relative;
    min-height: 100vh;
    padding: var(--spacing-xxl) var(--spacing-md);
    display: flex;
    align-items: center;
}

.chapter-number {
    position: absolute;
    top: var(--spacing-lg);
    left: var(--spacing-md);
    font-family: var(--font-display);
    font-size: clamp(4rem, 12vw, 8rem);
    font-weight: 300;
    color: var(--beige-dark);
    opacity: 0.3;
    line-height: 1;
    user-select: none;
}

.chapter-container {
    max-width: 900px;
    margin: 0 auto;
    width: 100%;
}

.chapter-header {
    margin-bottom: var(--spacing-xl);
}

.chapter-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 400;
    color: var(--brown);
    margin-bottom: var(--spacing-md);
    letter-spacing: 0.01em;
}

.chapter-line {
    width: 80px;
    height: 2px;
    background: var(--gold);
}

.chapter-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.chapter-text {
    max-width: 700px;
}

.chapter-lead {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-style: italic;
    color: var(--gold-dark);
    margin-bottom: var(--spacing-md);
    line-height: 1.5;
    font-weight: 400;
}

.chapter-text p {
    font-size: clamp(1.125rem, 2vw, 1.25rem);
    line-height: 2;
    margin-bottom: var(--spacing-md);
    color: var(--brown-light);
}

/* ==========================================
   GALLERY
   ========================================== */

.chapter-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.gallery-item,
.gallery-item-wide {
    position: relative;
    overflow: hidden;
    background: var(--beige-light);
}

.gallery-item-wide {
    grid-column: 1 / -1;
}

.gallery-image {
    width: 100%;
    height: auto;
    transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.gallery-item:hover .gallery-image,
.gallery-item-wide:hover .gallery-image {
    transform: scale(1.05);
}

.image-caption {
    font-family: var(--font-display);
    font-size: 1rem;
    font-style: italic;
    color: var(--brown-light);
    margin-top: var(--spacing-sm);
    text-align: center;
}

/* ==========================================
   TIMELINE
   ========================================== */

.chapter-timeline {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    padding-left: var(--spacing-lg);
    border-left: 2px solid var(--gold);
}

.timeline-item {
    position: relative;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: calc(-1 * var(--spacing-lg) - 6px);
    top: 8px;
    width: 12px;
    height: 12px;
    background: var(--gold);
    border-radius: 50%;
    box-shadow: 0 0 0 4px var(--cream);
}

.timeline-year {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--gold-dark);
    margin-bottom: var(--spacing-xs);
}

.timeline-text {
    font-size: 1.125rem;
    color: var(--brown-light);
}

/* ==========================================
   QUOTES
   ========================================== */

.quotes-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.quote {
    border-left: 4px solid var(--gold);
    padding-left: var(--spacing-lg);
    margin: var(--spacing-md) 0;
}

.quote-text {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-style: italic;
    color: var(--brown);
    line-height: 1.6;
    margin-bottom: var(--spacing-sm);
    font-weight: 400;
}

.quote-author {
    font-size: 1rem;
    color: var(--brown-light);
    font-style: normal;
}

.personal-message {
    background: var(--beige-light);
    padding: var(--spacing-xl);
    margin-top: var(--spacing-lg);
    position: relative;
}

.message-ornament {
    width: 60px;
    height: 2px;
    background: var(--gold);
    margin: 0 auto var(--spacing-md);
}

.personal-message .message-ornament:last-child {
    margin: var(--spacing-md) auto 0;
}

.message-text {
    font-family: var(--font-display);
    font-size: clamp(1.125rem, 2.5vw, 1.375rem);
    line-height: 2;
    color: var(--brown);
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

/* ==========================================
   PHOTO ALBUM
   ========================================== */

.album-filters {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    justify-content: center;
    margin-bottom: var(--spacing-xl);
}

.filter-btn {
    font-family: var(--font-display);
    font-size: 1rem;
    color: var(--brown-light);
    background: transparent;
    padding: 0.5rem 1.5rem;
    border: 1px solid var(--beige-dark);
    transition: var(--transition-fast);
    letter-spacing: 0.05em;
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--gold);
    color: var(--cream);
    border-color: var(--gold);
}

.photo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.photo-item {
    position: relative;
    overflow: hidden;
    aspect-ratio: 1;
    background: var(--beige-light);
}

.photo-item.hidden {
    display: none;
}

.photo-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.photo-image-contain {
    width: 100%;
    height: 100%;
    object-fit: contain;
    background-color: var(--beige-light);
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.photo-item:hover .photo-image {
    transform: scale(1.1);
}

.photo-item:hover .photo-image-contain {
    transform: scale(1.05);
}

/* ==========================================
   FINAL SECTION
   ========================================== */

.chapter-final {
    background: linear-gradient(135deg, var(--beige-light) 0%, var(--cream) 100%);
}

.final-content {
    text-align: center;
    padding: var(--spacing-xxl) var(--spacing-md);
}

.final-text {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    font-style: italic;
    color: var(--brown);
    line-height: 1.8;
    margin-bottom: var(--spacing-lg);
    font-weight: 300;
}

.final-ornament {
    font-size: 2rem;
    color: var(--gold);
}

/* ==========================================
   ANIMATIONS
   ========================================== */

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

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

.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ==========================================
   RESPONSIVE
   ========================================== */

@media (max-width: 768px) {
    .chapter-nav {
        right: var(--spacing-sm);
    }

    .nav-label {
        display: none;
    }

    .chapter {
        padding: var(--spacing-lg) var(--spacing-sm);
    }

    .chapter-number {
        font-size: 4rem;
        top: var(--spacing-sm);
        left: var(--spacing-sm);
    }

    .chapter-gallery {
        grid-template-columns: 1fr;
    }

    .personal-message {
        padding: var(--spacing-md);
    }

    .photo-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    .chapter-timeline {
        padding-left: var(--spacing-md);
    }

    .timeline-item::before {
        left: calc(-1 * var(--spacing-md) - 6px);
    }
}

/* ==========================================
   HIGHLIGHT CHAPTER
   ========================================== */

.chapter-highlight {
    background: linear-gradient(
        to bottom,
        var(--cream) 0%,
        var(--beige-light) 50%,
        var(--cream) 100%
    );
}