@import url('https://fonts.googleapis.com/css2?family=Montserrat:ital,wght@0,400;0,500;0,600;0,700;0,800;1,400;1,600&family=Roboto:ital,wght@0,300;0,400;0,500;0,700;1,400&display=swap');

/* --- Design Tokens & Variables --- */
:root {
    --font-heading: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-body: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --transition-smooth: all 0.25s cubic-bezier(0.165, 0.84, 0.44, 1);
    --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.05), 0 1px 3px rgba(0, 0, 0, 0.03);
    --shadow-glow: 0 8px 20px rgba(255, 107, 139, 0.3);
    --radius-lg: 20px;
    --radius-md: 14px;
    --radius-sm: 8px;
}

/* Theme 1: Rose Gold (Romantic Light Mode) */
body.rose-gold {
    --bg-gradient: linear-gradient(135deg, #fff0f5 0%, #fdf6f0 40%, #ffe4e8 100%);
    --text-primary: #2d2424;
    --text-secondary: #6e5d5c;
    --accent: #ff5277;
    --accent-secondary: #ff7597;
    --card-bg: rgba(255, 255, 255, 0.88);
    --card-border: rgba(255, 255, 255, 0.9);
    --btn-text: #ffffff;
    --input-bg: #ffffff;
    --shadow-color: rgba(255, 82, 119, 0.12);
    --nav-bg: rgba(255, 255, 255, 0.85);
    --quote-card-bg: #ffffff;
    --border-glass: 1px solid rgba(255, 182, 193, 0.4);
}

/* Theme 2: Midnight Plum (Romantic Dark Mode) */
body.midnight-plum {
    --bg-gradient: linear-gradient(135deg, #0e0a14 0%, #1a0e22 45%, #260a1c 100%);
    --text-primary: #f8eef6;
    --text-secondary: #c0b0c6;
    --accent: #ff5277;
    --accent-secondary: #e63964;
    --card-bg: rgba(28, 18, 38, 0.92);
    --card-border: rgba(255, 255, 255, 0.08);
    --btn-text: #ffffff;
    --input-bg: #1f142b;
    --shadow-color: rgba(0, 0, 0, 0.4);
    --nav-bg: rgba(18, 11, 26, 0.9);
    --quote-card-bg: #1c1226;
    --border-glass: 1px solid rgba(255, 255, 255, 0.1);
}

/* --- Base Reset & Performance Optimizations --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

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

/* High performance fixed background layer without layout repaints */
body {
    font-family: var(--font-body);
    color: var(--text-primary);
    overflow-x: hidden;
    min-height: 100vh;
    line-height: 1.6;
    padding-bottom: 70px;
    position: relative;
    background-color: #fff0f5;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: var(--bg-gradient);
    z-index: -2;
    pointer-events: none;
    transform: translateZ(0);
    will-change: transform;
}

@media (min-width: 993px) {
    body {
        padding-bottom: 0;
    }
}

#heart-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    pointer-events: none;
    transform: translateZ(0);
}

.container {
    width: 92%;
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 10px;
}

/* --- Panels (High Performance, zero lag) --- */
.glass-panel {
    background: var(--card-bg);
    border: var(--border-glass);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    padding: 30px;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    transform: translateZ(0);
}

/* --- Typography --- */
h1, h2, h3 {
    font-family: var(--font-heading);
    font-weight: 700;
    letter-spacing: -0.3px;
}

.section-title {
    font-size: 2.3rem;
    text-align: center;
    margin-bottom: 6px;
    color: var(--text-primary);
    position: relative;
    font-weight: 700;
}

.section-title::after {
    content: '♥';
    font-size: 1.1rem;
    display: block;
    color: var(--accent);
    margin-top: 4px;
    animation: heartBeat 2.2s infinite;
}

.section-subtitle {
    font-size: 0.95rem;
    text-align: center;
    margin-bottom: 40px;
    color: var(--text-secondary);
    font-family: var(--font-heading);
    font-weight: 500;
    letter-spacing: 0.5px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.text-left-title {
    text-align: left;
    margin-bottom: 5px;
    margin-top: 0;
}
.text-left-title::after {
    display: inline-block;
    margin-left: 8px;
}
.text-left-sub {
    text-align: left;
    margin-bottom: 0;
}

/* --- Top Navigation Header --- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: var(--nav-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: var(--border-glass);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
    transform: translateZ(0);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 62px;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
}

.heart-beat-icon {
    color: var(--accent);
    animation: heartBeat 1.8s infinite;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 16px;
    align-items: center;
}

.nav-item a {
    text-decoration: none;
    color: var(--text-primary);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.85rem;
    position: relative;
    padding: 6px 12px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition-smooth);
}

.nav-item a i {
    font-size: 0.8rem;
    color: var(--accent);
}

.nav-item a:hover {
    background: rgba(255, 82, 119, 0.12);
    color: var(--accent);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

/* --- Mobile Bottom Navigation Bar --- */
.mobile-bottom-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 60px;
    background: var(--nav-bg);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-top: var(--border-glass);
    box-shadow: 0 -4px 15px rgba(0, 0, 0, 0.06);
    z-index: 1000;
    justify-content: space-around;
    align-items: center;
    padding: 0 4px;
    padding-bottom: env(safe-area-inset-bottom, 0px);
    transform: translateZ(0);
}

.m-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 0.65rem;
    font-family: var(--font-heading);
    font-weight: 600;
    padding: 6px;
    border-radius: 10px;
    gap: 3px;
    transition: color 0.15s ease;
    min-width: 48px;
}

.m-nav-item i {
    font-size: 1.15rem;
    transition: transform 0.15s ease;
}

.m-nav-item.active {
    color: var(--accent);
}

.m-nav-item.active i {
    transform: scale(1.15);
}

/* --- Buttons --- */
.btn-primary {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-secondary) 100%);
    color: var(--btn-text);
    border: none;
    padding: 12px 28px;
    border-radius: 50px;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    box-shadow: var(--shadow-glow);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: var(--transition-smooth);
    touch-action: manipulation;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(255, 82, 119, 0.45);
}

.btn-primary:active {
    transform: translateY(0);
}

.pulse-btn {
    animation: pulse 3s infinite;
}

.btn-icon {
    background: var(--card-bg);
    border: var(--border-glass);
    color: var(--text-primary);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1rem;
    transition: var(--transition-smooth);
    box-shadow: var(--shadow-card);
}

.btn-icon:hover {
    background: var(--accent);
    color: white;
}

/* --- Hero Section --- */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 100px 0 50px;
    position: relative;
}

.hero-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    max-width: 880px;
}

.couple-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 82, 119, 0.12);
    color: var(--accent);
    border: 1px solid rgba(255, 82, 119, 0.25);
    padding: 6px 18px;
    border-radius: 30px;
    font-family: var(--font-heading);
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    margin-bottom: 18px;
    text-transform: uppercase;
}

.couple-names {
    font-family: var(--font-heading);
    font-size: 3.4rem;
    font-weight: 800;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    flex-wrap: wrap;
    line-height: 1.2;
    margin-bottom: 12px;
}

.heart-pulse-container {
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.heart-pulse {
    color: var(--accent);
    font-size: 2.6rem;
    animation: heartBeat 1.6s infinite;
}

.hero-subtitle {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 30px;
    font-weight: 500;
}

/* --- Timer Container --- */
.timer-container {
    width: 100%;
    max-width: 620px;
    padding: 26px 20px;
    margin: 0 auto;
    border-radius: var(--radius-lg);
    background: var(--card-bg);
}

.timer-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-bottom: 18px;
}

.timer-icon {
    color: var(--accent);
    font-size: 1.15rem;
}

.timer-title {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-primary);
}

.timer-display {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-bottom: 18px;
}

.timer-segment {
    background: rgba(255, 82, 119, 0.08);
    border: 1px solid rgba(255, 82, 119, 0.2);
    border-radius: var(--radius-md);
    padding: 10px 12px;
    min-width: 78px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.timer-val {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--accent);
    line-height: 1;
}

.timer-label {
    font-size: 0.75rem;
    font-family: var(--font-heading);
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    margin-top: 4px;
}

.timer-colon {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--accent);
    opacity: 0.6;
    animation: blink 1.5s infinite;
}

.timer-footer {
    display: flex;
    justify-content: center;
}

.anniversary-badge {
    font-size: 0.82rem;
    font-family: var(--font-heading);
    color: var(--text-secondary);
    background: rgba(255, 255, 255, 0.6);
    padding: 5px 14px;
    border-radius: 20px;
    border: var(--border-glass);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-weight: 600;
}

.anniversary-badge i {
    color: var(--accent);
}

/* --- Timeline Section --- */
.timeline-section {
    padding: 70px 0;
}

.timeline {
    position: relative;
    max-width: 850px;
    margin: 0 auto;
    padding: 20px 0;
}

.timeline::after {
    content: '';
    position: absolute;
    width: 3px;
    background: linear-gradient(to bottom, var(--accent), var(--accent-secondary), transparent);
    top: 0;
    bottom: 0;
    left: 50%;
    margin-left: -1.5px;
    border-radius: 3px;
}

.timeline-item {
    padding: 10px 40px;
    position: relative;
    width: 50%;
    content-visibility: auto;
    contain-intrinsic-size: 1px 180px;
}

.timeline-left { left: 0; }
.timeline-right { left: 50%; }

.timeline-item::after {
    content: '♥';
    position: absolute;
    width: 28px;
    height: 28px;
    right: -14px;
    background: var(--accent);
    color: white;
    top: 25px;
    border-radius: 50%;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    box-shadow: 0 0 12px var(--shadow-color);
}

.timeline-right::after { left: -14px; }

.timeline-card {
    padding: 22px;
    border-radius: var(--radius-md);
}

.timeline-badge-date {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-family: var(--font-heading);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--accent);
    background: rgba(255, 82, 119, 0.12);
    padding: 4px 10px;
    border-radius: 12px;
    margin-bottom: 8px;
}

.timeline-card h3 {
    font-size: 1.25rem;
    margin-bottom: 6px;
    color: var(--text-primary);
}

.timeline-card p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* --- Poems Section --- */
.poems-section {
    padding: 70px 0;
}

.poems-container {
    max-width: 780px;
    margin: 0 auto;
    padding: 30px 24px;
    text-align: center;
}

.poem-tabs {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 25px;
    flex-wrap: wrap;
}

.poem-tab {
    background: rgba(255, 255, 255, 0.5);
    border: var(--border-glass);
    padding: 7px 16px;
    border-radius: 25px;
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition-smooth);
}

.poem-tab.active,
.poem-tab:hover {
    background: var(--accent);
    color: white;
    border-color: var(--accent);
}

.poem-content {
    display: none;
}

.poem-content.active {
    display: block;
    animation: fadeIn 0.4s ease;
}

.poem-body {
    font-family: var(--font-body);
    font-size: 1.1rem;
    line-height: 1.9;
    color: var(--text-primary);
    font-style: italic;
    margin-bottom: 18px;
}

.poem-author {
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--accent);
    text-transform: uppercase;
}

/* --- Memory Gallery Section (Ultra-High Scroll Performance) --- */
.gallery-section {
    padding: 70px 0;
}

.gallery-stats-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 18px;
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 600;
}

.gallery-hint {
    color: var(--text-secondary);
    font-size: 0.8rem;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 18px;
}

/* Optimized Gallery Card (content-visibility enabled for 120fps scrolling) */
.gallery-card {
    background: var(--quote-card-bg);
    border-radius: var(--radius-md);
    border: var(--border-glass);
    overflow: hidden;
    box-shadow: var(--shadow-card);
    display: flex;
    flex-direction: column;
    cursor: pointer;
    position: relative;
    content-visibility: auto;
    contain-intrinsic-size: 1px 340px;
    transform: translateZ(0);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.gallery-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 25px var(--shadow-color);
}

.gallery-thumb-wrap {
    position: relative;
    width: 100%;
    height: 240px;
    overflow: hidden;
    background: rgba(0, 0, 0, 0.04);
}

.gallery-thumb-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transform: translateZ(0);
    transition: transform 0.3s ease;
}

.gallery-card:hover .gallery-thumb-wrap img {
    transform: scale(1.05);
}

.gallery-zoom-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    background: rgba(0, 0, 0, 0.5);
    color: white;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
}

/* Quotes are ALWAYS visible */
.gallery-quote-box {
    padding: 12px 14px;
    display: flex;
    align-items: flex-start;
    gap: 8px;
    border-top: 1px solid rgba(255, 82, 119, 0.12);
    min-height: 65px;
}

.quote-heart-icon {
    color: var(--accent);
    font-size: 0.85rem;
    margin-top: 3px;
    flex-shrink: 0;
}

.gallery-quote-text {
    font-family: var(--font-body);
    font-size: 0.92rem;
    line-height: 1.45;
    color: var(--text-primary);
    font-weight: 500;
    margin: 0;
}

/* --- Virtual Love Lock Wall --- */
.lock-section {
    padding: 70px 0;
}

.lock-container {
    text-align: center;
}

.lock-action-wrapper {
    margin-bottom: 20px;
}

.lock-fence {
    position: relative;
    height: 360px;
    border-radius: var(--radius-lg);
    background: 
        repeating-linear-gradient(45deg, rgba(255, 82, 119, 0.08) 0px, rgba(255, 82, 119, 0.08) 2px, transparent 2px, transparent 24px),
        repeating-linear-gradient(-45deg, rgba(255, 82, 119, 0.08) 0px, rgba(255, 82, 119, 0.08) 2px, transparent 2px, transparent 24px);
    overflow: hidden;
    border: 2px dashed rgba(255, 82, 119, 0.35);
}

.padlock-item {
    position: absolute;
    cursor: pointer;
    transform: translate(-50%, -50%);
    transition: transform 0.2s ease;
    z-index: 5;
}

.padlock-item:hover {
    transform: translate(-50%, -50%) scale(1.2);
    z-index: 20;
}

.padlock-body {
    width: 44px;
    height: 36px;
    border-radius: 6px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.65rem;
    box-shadow: 0 4px 10px rgba(0,0,0,0.15);
    position: relative;
}

.padlock-shackle {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 22px;
    height: 16px;
    border: 3px solid #8c8c8c;
    border-bottom: none;
    border-radius: 12px 12px 0 0;
    z-index: -1;
}

.lock-rose .padlock-body { background: linear-gradient(135deg, #ff5277, #ff7597); }
.lock-gold .padlock-body { background: linear-gradient(135deg, #f59f00, #fda085); }
.lock-teal .padlock-body { background: linear-gradient(135deg, #20c997, #4dabf7); }
.lock-purple .padlock-body { background: linear-gradient(135deg, #9775fa, #7048e8); }
.lock-blue .padlock-body { background: linear-gradient(135deg, #339af0, #22b8cf); }

.padlock-tooltip {
    position: absolute;
    bottom: 120%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--card-bg);
    border: var(--border-glass);
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    box-shadow: 0 6px 18px rgba(0,0,0,0.12);
    white-space: nowrap;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.15s ease;
    min-width: 130px;
    max-width: 220px;
    text-align: center;
}

.padlock-item:hover .padlock-tooltip {
    opacity: 1;
    pointer-events: auto;
}

.tooltip-names {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.78rem;
    color: var(--accent);
}

.tooltip-msg {
    font-size: 0.72rem;
    color: var(--text-primary);
    margin: 2px 0;
    white-space: normal;
}

.delete-lock-btn {
    position: absolute;
    top: 2px;
    right: 4px;
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.9rem;
}
.delete-lock-btn:hover { color: red; }

/* --- Couple Promises & Rules Section --- */
.promises-section {
    padding: 70px 0;
}

.promises-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 22px;
    max-width: 1000px;
    margin: 0 auto;
}

.promise-card {
    padding: 26px;
    border-radius: var(--radius-lg);
    content-visibility: auto;
    contain-intrinsic-size: 1px 300px;
}

.promise-card-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 18px;
    border-bottom: 1px solid rgba(255, 82, 119, 0.12);
    padding-bottom: 12px;
}

.icon-circle {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.icon-gold { background: rgba(245, 159, 0, 0.12); color: #f59f00; }
.icon-pink { background: rgba(255, 82, 119, 0.12); color: var(--accent); }

.promise-card-header h3 {
    font-size: 1.2rem;
    margin-bottom: 2px;
    color: var(--text-primary);
}

.promise-card-sub {
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-family: var(--font-heading);
    text-transform: uppercase;
}

.love-rules-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.love-rules-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 0.95rem;
    color: var(--text-primary);
    line-height: 1.5;
}

.rule-num {
    background: var(--accent);
    color: white;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-size: 0.75rem;
    font-weight: 700;
    flex-shrink: 0;
    margin-top: 2px;
}

.bucket-check {
    background: rgba(12, 166, 120, 0.12);
    color: #0ca678;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    flex-shrink: 0;
    margin-top: 2px;
}

/* --- Sticky Notes Letters Section --- */
.notes-section {
    padding: 70px 0;
}

.notes-header-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 25px;
    flex-wrap: wrap;
    gap: 15px;
}

.notes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.note-card {
    padding: 20px;
    border-radius: var(--radius-md);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 190px;
    position: relative;
    border: 1px solid rgba(255, 255, 255, 0.6);
    content-visibility: auto;
    contain-intrinsic-size: 1px 200px;
    transition: transform 0.2s ease;
}

.note-card:hover {
    transform: translateY(-3px);
}

.note-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
}

.note-avatar {
    font-size: 1.15rem;
}

.note-writer {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.9rem;
    color: #2b2024;
}

.note-content-text {
    font-size: 0.95rem;
    color: #332a2c;
    line-height: 1.6;
    margin-bottom: 12px;
    white-space: pre-wrap;
    word-break: break-word;
}

.note-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px dashed rgba(0, 0, 0, 0.12);
    padding-top: 8px;
    font-size: 0.78rem;
    color: #6d5b60;
}

.note-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.note-like-btn, .note-delete-btn {
    background: rgba(255, 255, 255, 0.7);
    border: none;
    padding: 4px 8px;
    border-radius: 12px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 0.75rem;
    color: #4a3e3d;
}

.note-like-btn:hover { background: #ff5277; color: white; }
.note-delete-btn:hover { background: #ff4757; color: white; }

/* Sticky note pastel themes */
.note-bg-pastel-pink { background: linear-gradient(135deg, #ffd1dc, #ffe0eb); }
.note-bg-pastel-yellow { background: linear-gradient(135deg, #fff3b0, #fff7cd); }
.note-bg-pastel-blue { background: linear-gradient(135deg, #cbe3fb, #e0effe); }
.note-bg-pastel-purple { background: linear-gradient(135deg, #e4d3f5, #efe3fb); }
.note-bg-pastel-green { background: linear-gradient(135deg, #d3f0d8, #e4f7e8); }

/* --- Modals --- */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.6);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease;
    padding: 15px;
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-content {
    position: relative;
    width: 100%;
    max-width: 440px;
    max-height: 90vh;
    overflow-y: auto;
    border-radius: var(--radius-lg);
    padding: 26px;
    background: var(--card-bg);
}

.close-modal {
    position: absolute;
    top: 14px;
    right: 16px;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-secondary);
}

.modal-header {
    text-align: center;
    margin-bottom: 18px;
}

.modal-icon {
    font-size: 1.8rem;
    color: var(--accent);
    margin-bottom: 4px;
}

.modal-content h3 {
    font-size: 1.35rem;
    color: var(--text-primary);
}

.form-group {
    margin-bottom: 14px;
}

.form-group label {
    display: block;
    font-family: var(--font-heading);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    margin-bottom: 4px;
    color: var(--text-secondary);
}

.form-control {
    width: 100%;
    padding: 10px 12px;
    background: var(--input-bg);
    border: var(--border-glass);
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 0.95rem;
    color: var(--text-primary);
    outline: none;
}

.form-control:focus {
    border-color: var(--accent);
}

.readonly-input {
    background: rgba(0, 0, 0, 0.04);
    cursor: not-allowed;
    color: var(--text-secondary);
    font-weight: 600;
}

.form-hint {
    display: block;
    font-size: 0.72rem;
    color: var(--accent);
    margin-top: 4px;
}

.submit-full-btn {
    width: 100%;
    margin-top: 8px;
}

/* --- Lightbox for Gallery --- */
.lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.92);
    z-index: 3000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease;
    padding: 15px;
}

.lightbox.active {
    opacity: 1;
    pointer-events: auto;
}

.lightbox-content {
    position: relative;
    max-width: 92%;
    max-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox-img-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    max-width: 100%;
}

.lightbox-content img {
    max-width: 85vw;
    max-height: 75vh;
    border-radius: var(--radius-sm);
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    object-fit: contain;
    transition: opacity 0.15s ease;
}

.lightbox-caption {
    margin-top: 10px;
    font-family: var(--font-body);
    font-size: 1.05rem;
    color: #fff;
    text-align: center;
    font-style: italic;
    max-width: 600px;
    background: rgba(0, 0, 0, 0.5);
    padding: 6px 16px;
    border-radius: 20px;
}

.close-lightbox {
    position: absolute;
    top: -40px;
    right: 0;
    background: none;
    border: none;
    color: white;
    font-size: 2rem;
    cursor: pointer;
}

.lb-nav-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.25);
    color: white;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
}

.lb-prev { left: -55px; }
.lb-next { right: -55px; }

/* --- Floating Music Player --- */
.floating-player {
    position: fixed;
    bottom: 20px;
    left: 20px;
    background: var(--card-bg);
    border: var(--border-glass);
    border-radius: 50px;
    box-shadow: 0 6px 20px rgba(0,0,0,0.1);
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 5px 14px 5px 5px;
    z-index: 1050;
    max-width: 260px;
    transform: translateZ(0);
}

.player-disk-container {
    position: relative;
    width: 38px;
    height: 38px;
}

.player-disk {
    width: 100%;
    height: 100%;
    background: #222;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    font-size: 0.9rem;
    border: 2px solid rgba(255, 82, 119, 0.4);
}

.player-disk.spinning {
    animation: spin 3.5s linear infinite;
}

.music-visualizer {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    align-items: center;
    gap: 2px;
    opacity: 0;
    transition: opacity 0.2s ease;
}

.music-visualizer.playing {
    opacity: 1;
}

.visualizer-bar {
    width: 2px;
    height: 10px;
    background: white;
    border-radius: 2px;
    animation: bounce 0.6s ease infinite alternate;
}
.visualizer-bar:nth-child(1) { animation-delay: 0.1s; }
.visualizer-bar:nth-child(2) { animation-delay: 0.3s; }
.visualizer-bar:nth-child(3) { animation-delay: 0.2s; }
.visualizer-bar:nth-child(4) { animation-delay: 0.4s; }

.player-info {
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.player-info h4 {
    font-family: var(--font-heading);
    font-size: 0.85rem;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin: 0;
}

.player-info span {
    font-size: 0.7rem;
    color: var(--text-secondary);
    font-family: var(--font-body);
}

.player-play-btn {
    background: var(--accent);
    color: white;
    border: none;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    flex-shrink: 0;
}

/* --- Toast Notifications --- */
#toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 4000;
    display: flex;
    flex-direction: column;
    gap: 8px;
    pointer-events: none;
}

.toast-notification {
    background: var(--card-bg);
    border: var(--border-glass);
    padding: 10px 18px;
    border-radius: 10px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.1);
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    font-family: var(--font-heading);
    transform: translateX(120%);
    transition: transform 0.25s ease;
    pointer-events: auto;
}

.toast-notification.show {
    transform: translateX(0);
}

.text-rose { color: var(--accent); }

/* --- Scroll Animations Classes --- */
[data-aos] {
    pointer-events: none;
}

[data-aos="fade-up"] {
    transform: translateY(20px);
    opacity: 0;
    transition-property: transform, opacity;
    transition-duration: 0.4s;
}

[data-aos="fade-down"] {
    transform: translateY(-20px);
    opacity: 0;
    transition-property: transform, opacity;
    transition-duration: 0.4s;
}

[data-aos="zoom-in"] {
    transform: scale(0.94);
    opacity: 0;
    transition-property: transform, opacity;
    transition-duration: 0.35s;
}

[data-aos].aos-animate {
    pointer-events: auto;
    transform: none;
    opacity: 1;
}

/* --- Footer --- */
footer {
    text-align: center;
    padding: 40px 0 25px;
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-family: var(--font-heading);
    border-top: var(--border-glass);
}

footer i {
    color: var(--accent);
    animation: heartBeat 1.5s infinite;
}

/* --- Keyframes --- */
@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes bounce {
    0% { height: 3px; }
    100% { height: 12px; }
}

@keyframes blink {
    0%, 100% { opacity: 0.8; }
    50% { opacity: 0.2; }
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.04); }
    100% { transform: scale(1); }
}

@keyframes heartBeat {
    0% { transform: scale(1); }
    14% { transform: scale(1.12); }
    28% { transform: scale(1); }
    42% { transform: scale(1.12); }
    70% { transform: scale(1); }
}

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

/* ==========================================================================
   MOBILE RESPONSIVENESS
   ========================================================================== */

@media (max-width: 992px) {
    .nav-menu { display: none; }
    .mobile-bottom-nav { display: flex; }
    
    .couple-names { font-size: 2.6rem; }
    .heart-pulse { font-size: 2rem; }
    
    .timeline::after { left: 20px; }
    .timeline-item { width: 100%; padding-left: 50px; padding-right: 8px; }
    .timeline-right { left: 0; }
    .timeline-item::after { left: 6px; right: auto; }
    
    .lb-prev { left: 8px; }
    .lb-next { right: 8px; }
    
    .floating-player {
        bottom: 72px;
        left: 10px;
        max-width: 210px;
        padding: 4px 10px 4px 4px;
    }
}

@media (max-width: 768px) {
    .section-title { font-size: 1.85rem; }
    .section-subtitle { font-size: 0.85rem; margin-bottom: 30px; }
    
    .couple-names { font-size: 2rem; gap: 6px; }
    .heart-pulse { font-size: 1.6rem; }
    .hero-subtitle { font-size: 0.92rem; }
    
    .timer-container { padding: 20px 12px; }
    .timer-display { gap: 6px; }
    .timer-segment { min-width: 58px; padding: 8px 4px; }
    .timer-val { font-size: 1.6rem; }
    .timer-label { font-size: 0.65rem; }
    .timer-colon { font-size: 1.3rem; }
    
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }
    .gallery-thumb-wrap { height: 170px; }
    .gallery-quote-box { padding: 8px 10px; min-height: 55px; }
    .gallery-quote-text { font-size: 0.78rem; }
    
    .lock-fence { height: 300px; }
    
    .notes-header-row {
        flex-direction: column;
        align-items: stretch;
        text-align: center;
    }
    .text-left-title, .text-left-sub { text-align: center; }
    
    #toast-container {
        left: 15px;
        right: 15px;
        top: 15px;
    }
    .toast-notification {
        transform: translateY(-120%);
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .couple-names { font-size: 1.7rem; }
    .timer-segment { min-width: 50px; padding: 6px 2px; }
    .timer-val { font-size: 1.35rem; }
    
    .gallery-grid {
        grid-template-columns: 1fr;
        gap: 14px;
    }
    .gallery-thumb-wrap { height: 210px; }
    .gallery-quote-text { font-size: 0.85rem; }
    
    .floating-player {
        bottom: 68px;
        left: 8px;
        max-width: 170px;
        gap: 6px;
    }
    .player-disk-container { width: 32px; height: 32px; }
    .player-play-btn { width: 26px; height: 26px; font-size: 0.65rem; }
    .player-info h4 { font-size: 0.75rem; }
    .player-info span { font-size: 0.6rem; }
    
    .modal-content {
        padding: 20px 15px;
    }
}