/* ============================================
   HUI XIN SURPRISE WEBSITE — MAIN STYLES v4
   Theme: Hello Kitty, soft pink, pastel
   Bilingual: English + Chinese
   ============================================ */

:root {
    --pink-50: #fff5f7;
    --pink-100: #ffe0eb;
    --pink-200: #ffc4d6;
    --pink-300: #ff9ec0;
    --pink-400: #ff7aa8;
    --pink-500: #ff6690;
    --pink-600: #e64876;

    --peach: #ffd4c4;
    --lavender: #e5d0ff;
    --lavender-deep: #c9a6f5;
    --mint: #c7f0e4;
    --cream: #fff8f0;

    --ink: #4a2c3d;
    --ink-soft: #7d5468;
    --muted: #a88fa0;

    --grad-pink: linear-gradient(135deg, #ffc4d6 0%, #e5d0ff 50%, #ffd4c4 100%);
    --grad-rose: linear-gradient(135deg, #ff9ec0 0%, #ff6690 100%);
    --grad-soft: linear-gradient(180deg, #fff5f7 0%, #ffe0eb 50%, #e5d0ff 100%);
    --grad-modal: linear-gradient(135deg, #fff5f7 0%, #f0e0ff 100%);

    --glass-bg: rgba(255, 255, 255, 0.35);
    --glass-bg-strong: rgba(255, 255, 255, 0.6);
    --glass-border: rgba(255, 255, 255, 0.6);
    --glass-shadow: 0 8px 32px rgba(255, 102, 144, 0.15);

    --font-display: 'Playfair Display', Georgia, serif;
    --font-body: 'Quicksand', -apple-system, sans-serif;
    --font-script: 'Sacramento', cursive;
    --font-cn-serif: 'Noto Serif SC', 'Ma Shan Zheng', serif;
    --font-cn-display: 'Ma Shan Zheng', 'Noto Serif SC', cursive;

    --radius-sm: 12px;
    --radius-md: 20px;
    --radius-lg: 32px;
    --radius-xl: 48px;

    --shadow-sm: 0 4px 16px rgba(255, 102, 144, 0.12);
    --shadow-md: 0 10px 40px rgba(255, 102, 144, 0.18);
    --shadow-lg: 0 20px 60px rgba(255, 102, 144, 0.25);
    --shadow-modal: 0 30px 80px rgba(74, 44, 61, 0.3);

    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    color: var(--ink);
    background: var(--grad-soft);
    background-attachment: fixed;
    overflow-x: hidden;
    min-height: 100vh;
    line-height: 1.6;
    -webkit-overflow-scrolling: touch;
}

img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
a { text-decoration: none; color: inherit; }

/* Chinese text styling */
[class*="-cn"] {
    font-family: var(--font-cn-serif);
    font-weight: 400;
    color: var(--ink-soft);
    opacity: 0.85;
}

/* ---------- CURSOR GLOW ---------- */
.cursor-glow {
    position: fixed;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 158, 192, 0.18) 0%, rgba(229, 208, 255, 0.12) 40%, transparent 70%);
    pointer-events: none;
    z-index: 9999;
    transform: translate(-50%, -50%);
    transition: opacity 0.3s ease;
    mix-blend-mode: screen;
    opacity: 0;
}

body:hover .cursor-glow { opacity: 1; }

/* ---------- LOADING SCREEN ---------- */
.loading-screen {
    position: fixed;
    inset: 0;
    background: var(--grad-soft);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.8s var(--ease-out), visibility 0.8s;
}

.loading-screen.hidden {
    opacity: 0;
    visibility: hidden;
}

.loading-content { text-align: center; }

.loading-hello-kitty {
    margin-bottom: 2rem;
    animation: floatGentle 3s ease-in-out infinite;
}

.hello-kitty-face {
    position: relative;
    width: 140px;
    height: 120px;
    margin: 0 auto;
    background: white;
    border-radius: 50%;
    box-shadow: var(--shadow-md);
}

.kitty-bow {
    position: absolute;
    top: 12px;
    right: 18px;
    font-size: 2rem;
    animation: bowBob 2s ease-in-out infinite;
}

.kitty-eye {
    position: absolute;
    width: 10px;
    height: 14px;
    background: var(--ink);
    border-radius: 50%;
    top: 50px;
    animation: blink 4s ease-in-out infinite;
}
.kitty-eye.left { left: 40px; }
.kitty-eye.right { right: 40px; }

.kitty-nose {
    position: absolute;
    width: 10px;
    height: 8px;
    background: var(--pink-400);
    border-radius: 50%;
    top: 65px;
    left: 50%;
    transform: translateX(-50%);
}

.kitty-whisker {
    position: absolute;
    width: 25px;
    height: 2px;
    background: var(--ink-soft);
    border-radius: 2px;
    top: 68px;
}
.kitty-whisker.w1 { left: 5px; transform: rotate(8deg); }
.kitty-whisker.w2 { left: 5px; top: 78px; }
.kitty-whisker.w3 { left: 5px; top: 88px; transform: rotate(-8deg); }
.kitty-whisker.w4 { right: 5px; transform: rotate(-8deg); }
.kitty-whisker.w5 { right: 5px; top: 78px; }
.kitty-whisker.w6 { right: 5px; top: 88px; transform: rotate(8deg); }

.loading-text {
    font-family: var(--font-display);
    font-size: 1.2rem;
    color: var(--ink-soft);
    margin-bottom: 0.5rem;
    letter-spacing: 0.05em;
}

.loading-text-cn {
    font-family: var(--font-cn-serif);
    font-size: 1rem;
    color: var(--ink-soft);
    opacity: 0.7;
    margin-bottom: 1.5rem;
}

.loading-bar-container {
    width: 220px;
    height: 6px;
    background: rgba(255, 196, 214, 0.5);
    border-radius: 10px;
    margin: 0 auto;
    overflow: hidden;
}

.loading-bar {
    width: 0%;
    height: 100%;
    background: var(--grad-rose);
    border-radius: 10px;
    transition: width 0.3s var(--ease-out);
}

/* ---------- SCROLL PROGRESS ---------- */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 4px;
    background: var(--grad-rose);
    width: 0%;
    z-index: 9998;
    transition: width 0.1s linear;
    box-shadow: 0 0 12px rgba(255, 102, 144, 0.6);
}

/* ---------- NAVIGATION ---------- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1.2rem 0;
    transition: all 0.4s var(--ease-out);
}

.navbar.scrolled {
    background: rgba(255, 245, 247, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: var(--shadow-sm);
    padding: 0.8rem 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--ink);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: transform 0.3s var(--ease-bounce);
}

.nav-logo:hover { transform: scale(1.05); }

.nav-heart {
    color: var(--pink-500);
    font-size: 1.3rem;
    animation: pulseHeart 1.5s ease-in-out infinite;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 0.5rem;
    position: relative;
}

/* Close button - hidden on desktop */
.nav-close {
    display: none;
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.7);
    border: none;
    color: var(--ink);
    font-size: 1.2rem;
    cursor: pointer;
    transition: all 0.3s ease;
    align-items: center;
    justify-content: center;
    z-index: 1002;
}

.nav-close:hover {
    background: rgba(255, 255, 255, 0.9);
    transform: scale(1.1);
}

.nav-link {
    padding: 0.6rem 1.2rem;
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--ink-soft);
    border-radius: 999px;
    transition: all 0.3s var(--ease-out);
    display: flex;
    flex-direction: column;
    align-items: center;
    line-height: 1.2;
}

.nav-link-cn {
    font-size: 0.7rem;
    opacity: 0.7;
    font-family: var(--font-cn-serif);
}

.nav-link:hover {
    color: var(--pink-600);
    background: rgba(255, 196, 214, 0.4);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    width: 30px;
    height: 24px;
    justify-content: space-between;
}

.nav-toggle span {
    display: block;
    height: 3px;
    background: var(--ink);
    border-radius: 3px;
    transition: all 0.3s var(--ease-out);
}

.nav-toggle.open span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* ---------- PARTICLES CANVAS ---------- */
#particlesCanvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 5;
}

/* ---------- MUSIC CONTROLS ---------- */
.music-controls {
    position: fixed;
    bottom: 2rem;
    left: 2rem;
    z-index: 999;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.8rem;
}

.music-btn {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.8);
    box-shadow: var(--shadow-md), 0 0 20px rgba(255, 102, 144, 0.15);
    color: var(--pink-600);
    font-size: 1.2rem;
    transition: all 0.3s var(--ease-bounce);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.music-btn:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-lg), 0 0 30px rgba(255, 102, 144, 0.3);
}

.music-btn.playing {
    background: var(--grad-rose);
    color: white;
}

.music-btn.playing::before {
    content: '';
    position: absolute;
    inset: -4px;
    border-radius: 50%;
    border: 2px solid rgba(255, 102, 144, 0.3);
    animation: pulseRing 2s ease-out infinite;
}

.music-bars {
    display: flex;
    align-items: flex-end;
    gap: 2px;
    height: 16px;
}

.music-bars span {
    display: block;
    width: 3px;
    background: currentColor;
    border-radius: 2px;
    height: 6px;
    transition: height 0.2s ease;
}

.music-btn.playing .music-bars span {
    animation: musicBar 0.8s ease-in-out infinite;
}

.music-bars span:nth-child(1) { animation-delay: 0s; }
.music-bars span:nth-child(2) { animation-delay: 0.15s; }
.music-bars span:nth-child(3) { animation-delay: 0.3s; }
.music-bars span:nth-child(4) { animation-delay: 0.1s; }

.volume-panel {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.8);
    border-radius: 999px;
    padding: 0.5rem 1rem 0.5rem 0.8rem;
    box-shadow: var(--shadow-sm);
    max-width: 0;
    opacity: 0;
    overflow: hidden;
    transition: all 0.4s var(--ease-out);
}

.music-controls.expanded .volume-panel {
    max-width: 200px;
    opacity: 1;
}

.volume-icon {
    color: var(--pink-500);
    font-size: 0.85rem;
    flex-shrink: 0;
}

.volume-slider {
    -webkit-appearance: none;
    appearance: none;
    width: 100px;
    height: 4px;
    background: rgba(255, 196, 214, 0.6);
    border-radius: 10px;
    outline: none;
    cursor: pointer;
}

.volume-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 14px;
    height: 14px;
    background: var(--pink-500);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(255, 102, 144, 0.4);
}

/* ---------- HERO ---------- */
.hero {
    min-height: 100vh;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6rem 2rem 4rem;
    overflow: hidden;
}

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

.hero-gradient {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 20% 30%, rgba(255, 196, 214, 0.6) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(229, 208, 255, 0.5) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(255, 248, 240, 0.8) 0%, transparent 70%);
}

.hello-kitty-bg-decoration {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.kitty-svg {
    position: absolute;
    opacity: 0.5;
    animation: floatSlow 8s ease-in-out infinite;
}

.kitty-svg-1 {
    width: 200px;
    height: 200px;
    top: 10%;
    left: 8%;
}

.kitty-svg-2 {
    width: 160px;
    height: 160px;
    bottom: 15%;
    right: 8%;
    animation-delay: -4s;
    transform: scaleX(-1);
}

.floating-clouds {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.cloud {
    position: absolute;
    background: rgba(255, 255, 255, 0.5);
    border-radius: 50px;
    animation: cloudDrift 30s linear infinite;
}

.cloud::before, .cloud::after {
    content: '';
    position: absolute;
    background: inherit;
    border-radius: 50%;
}

.cloud-1 {
    width: 120px;
    height: 40px;
    top: 20%;
    left: -150px;
    animation-duration: 35s;
}
.cloud-1::before { width: 50px; height: 50px; top: -20px; left: 20px; }
.cloud-1::after { width: 60px; height: 60px; top: -25px; left: 50px; }

.cloud-2 {
    width: 80px;
    height: 30px;
    top: 60%;
    left: -100px;
    animation-duration: 45s;
    animation-delay: -15s;
    opacity: 0.4;
}
.cloud-2::before { width: 40px; height: 40px; top: -15px; left: 15px; }

.cloud-3 {
    width: 100px;
    height: 35px;
    top: 40%;
    left: -130px;
    animation-duration: 40s;
    animation-delay: -25s;
    opacity: 0.6;
}
.cloud-3::before { width: 45px; height: 45px; top: -18px; left: 18px; }

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
}

.hero-ribbon {
    font-size: 2rem;
    color: var(--pink-400);
    margin-bottom: 0.5rem;
    animation: spin 6s linear infinite;
}

.hero-subtitle {
    font-family: var(--font-script);
    font-size: 1.8rem;
    color: var(--pink-500);
    margin-bottom: 0.3rem;
    letter-spacing: 0.05em;
}

.hero-subtitle-cn {
    font-family: var(--font-cn-display);
    font-size: 1.3rem;
    color: var(--pink-500);
    margin-bottom: 1rem;
    opacity: 0.85;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1rem;
}

.hero-greeting {
    display: block;
    font-weight: 400;
    font-style: italic;
    color: var(--ink-soft);
    font-size: 0.55em;
    margin-bottom: 0.2em;
}

.hero-greeting-cn {
    display: block;
    font-family: var(--font-cn-display);
    font-size: 0.4em;
    color: var(--ink-soft);
    margin-bottom: 0.3em;
    opacity: 0.8;
}

.hero-name {
    background: linear-gradient(135deg, #ff6690 0%, #e64876 50%, #ff9ec0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
    animation: shimmer 3s ease-in-out infinite;
    background-size: 200% 100%;
}

.hero-message {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--ink-soft);
    margin-bottom: 0.5rem;
    line-height: 1.8;
}

.hero-message-cn {
    font-family: var(--font-cn-serif);
    font-size: clamp(0.9rem, 1.8vw, 1.1rem);
    color: var(--ink-soft);
    margin-bottom: 2.5rem;
    line-height: 1.8;
    opacity: 0.85;
}

.heart-icon {
    display: inline-block;
    animation: pulseHeart 1.5s ease-in-out infinite;
}

.cta-button {
    position: relative;
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    gap: 0.3rem;
    padding: 1.2rem 2.5rem;
    background: var(--grad-rose);
    color: white;
    font-family: var(--font-body);
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 999px;
    box-shadow: var(--shadow-md), 0 0 40px rgba(255, 102, 144, 0.3);
    transition: all 0.4s var(--ease-bounce);
    overflow: visible;
    letter-spacing: 0.02em;
}

.cta-text-cn {
    font-family: var(--font-cn-serif);
    font-size: 0.85rem;
    font-weight: 400;
    opacity: 0.9;
}

.cta-button:hover {
    transform: translateY(-4px) scale(1.05);
    box-shadow: var(--shadow-lg), 0 0 60px rgba(255, 102, 144, 0.5);
}

.cta-sparkle {
    position: absolute;
    font-size: 1rem;
    animation: sparkleFloat 2s ease-in-out infinite;
}
.cta-sparkle.sparkle-1 { top: -12px; left: 20%; }
.cta-sparkle.sparkle-2 { top: 50%; right: -15px; animation-delay: 0.5s; }
.cta-sparkle.sparkle-3 { bottom: -10px; left: 35%; animation-delay: 1s; }

/* ---------- SECTIONS COMMON ---------- */
.section {
    position: relative;
    padding: 6rem 2rem;
    overflow: hidden;
}

.section-container {
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-label {
    display: block;
    font-family: var(--font-script);
    font-size: 1.5rem;
    color: var(--pink-500);
    margin-bottom: 0.3rem;
}

.section-label-cn {
    display: block;
    font-family: var(--font-cn-display);
    font-size: 1.2rem;
    color: var(--pink-500);
    margin-bottom: 1rem;
    opacity: 0.85;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    line-height: 1.2;
    color: var(--ink);
    margin-bottom: 0.3rem;
}

.section-title-cn {
    font-family: var(--font-cn-display);
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    font-weight: 500;
    color: var(--ink-soft);
    margin-bottom: 1rem;
    opacity: 0.85;
}

.section-subtitle {
    font-size: clamp(1rem, 2vw, 1.15rem);
    color: var(--ink-soft);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.8;
    margin-bottom: 0.5rem;
}

.section-subtitle-cn {
    font-family: var(--font-cn-serif);
    font-size: clamp(0.95rem, 1.8vw, 1.05rem);
    color: var(--ink-soft);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.8;
    opacity: 0.85;
}

.section-subtitle em {
    font-style: italic;
    color: var(--pink-600);
    font-family: var(--font-display);
}

.section-decoration {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin: 2rem 0;
    color: var(--pink-300);
    font-size: 1.5rem;
}

.deco-star { animation: sparkle 2s ease-in-out infinite; }
.deco-star:nth-child(3) { animation-delay: 1s; }
.deco-heart { animation: pulseHeart 1.5s ease-in-out infinite; color: var(--pink-400); }

/* ---------- SECTION 1: SPECIAL ---------- */
.special-section {
    background: linear-gradient(180deg, var(--pink-50) 0%, var(--cream) 100%);
}

.special-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.special-illustration {
    display: flex;
    justify-content: center;
}

.illustration-frame {
    position: relative;
    width: 280px;
    height: 280px;
}

.illustration-inner {
    width: 100%;
    height: 100%;
    background: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    border: 4px solid var(--pink-100);
}

.frame-glow {
    position: absolute;
    inset: -20px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 158, 192, 0.3) 0%, transparent 70%);
    animation: pulseGlow 3s ease-in-out infinite;
    z-index: -1;
}

.cute-kitty-art {
    position: relative;
    width: 180px;
    height: 180px;
}

.art-kitty-face { position: relative; width: 100%; height: 100%; }

.art-ear {
    position: absolute;
    width: 0;
    height: 0;
    border-left: 25px solid transparent;
    border-right: 25px solid transparent;
    border-bottom: 35px solid white;
    top: 10px;
}
.art-ear.left { left: 15px; }
.art-ear.right { right: 15px; }

.art-face-oval {
    position: absolute;
    top: 40px;
    left: 50%;
    transform: translateX(-50%);
    width: 140px;
    height: 120px;
    background: white;
    border-radius: 50%;
    border: 2px solid var(--pink-100);
}

.art-eye {
    position: absolute;
    width: 8px;
    height: 12px;
    background: var(--ink);
    border-radius: 50%;
    top: 40px;
}
.art-eye.left { left: 40px; }
.art-eye.right { right: 40px; }

.art-nose {
    position: absolute;
    width: 10px;
    height: 8px;
    background: var(--pink-400);
    border-radius: 50%;
    top: 58px;
    left: 50%;
    transform: translateX(-50%);
}

.art-mouth {
    position: absolute;
    top: 68px;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 15px;
    border-bottom: 2px solid var(--ink-soft);
    border-radius: 0 0 15px 15px;
}

.art-whisker {
    position: absolute;
    width: 25px;
    height: 2px;
    background: var(--ink-soft);
    top: 70px;
}
.art-whisker.l1 { left: 8px; transform: rotate(10deg); }
.art-whisker.l2 { left: 8px; top: 78px; }
.art-whisker.l3 { left: 8px; top: 86px; transform: rotate(-10deg); }
.art-whisker.r1 { right: 8px; transform: rotate(-10deg); }
.art-whisker.r2 { right: 8px; top: 78px; }
.art-whisker.r3 { right: 8px; top: 86px; transform: rotate(10deg); }

.art-bow {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 2rem;
    animation: bowBob 2s ease-in-out infinite;
}

.art-hearts { position: absolute; inset: 0; pointer-events: none; }

.art-heart {
    position: absolute;
    color: var(--pink-400);
    font-size: 1.5rem;
    animation: floatHeart 4s ease-in-out infinite;
}
.art-heart.h1 { top: 10%; left: 0; }
.art-heart.h2 { top: 30%; right: -5%; animation-delay: 1.5s; }
.art-heart.h3 { bottom: 20%; left: 10%; animation-delay: 3s; }

.special-text {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.explore-btn {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    gap: 0.3rem;
    padding: 1rem 2rem;
    background: white;
    color: var(--pink-600);
    font-weight: 600;
    border-radius: 999px;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s var(--ease-bounce);
    align-self: flex-start;
    margin-top: 1rem;
}

.explore-btn-cn {
    font-family: var(--font-cn-serif);
    font-size: 0.85rem;
    font-weight: 400;
    opacity: 0.8;
}

.explore-btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    gap: 0.5rem;
}

.explore-btn i { animation: floatGentle 2s ease-in-out infinite; }

/* ---------- SECTION 2: GALLERY ---------- */
.gallery-section {
    background: linear-gradient(180deg, var(--cream) 0%, var(--pink-50) 50%, var(--lavender) 100%);
    padding-bottom: 4rem;
}

.gallery-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    justify-content: center;
}

/* Fixed size - simple and works on ALL browsers */
.gallery-item {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    transition: all 0.5s var(--ease-out);
    background: var(--pink-100);
    width: 280px;
    height: 360px;
    flex-shrink: 0;
}

.gallery-item:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-lg);
}

.gallery-item:active {
    transform: scale(0.97);
}

/* Image fills container - NO position absolute */
.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.8s var(--ease-out);
}

.gallery-item:hover img { transform: scale(1.08); }

/* Overlay gradient on top of image */
.gallery-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180deg, transparent 40%, rgba(74, 44, 61, 0.5) 100%);
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
    z-index: 1;
}

.gallery-item:hover::before { opacity: 1; }
.gallery-item.show-overlay::before { opacity: 1; }

.gallery-item-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 1.5rem;
    color: white;
    transform: translateY(100%);
    transition: transform 0.5s var(--ease-out);
    pointer-events: none;
    z-index: 2;
}

.gallery-item:hover .gallery-item-overlay { transform: translateY(0); }
.gallery-item.show-overlay .gallery-item-overlay { transform: translateY(0); }

.gallery-item-number {
    font-family: var(--font-script);
    font-size: 1.3rem;
    color: var(--pink-200);
    margin-bottom: 0.3rem;
}

.gallery-item-title {
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 600;
    line-height: 1.4;
    margin-bottom: 0.3rem;
}

.gallery-item-title-cn {
    font-family: var(--font-cn-serif);
    font-size: 0.8rem;
    opacity: 0.9;
    line-height: 1.3;
}

.gallery-item-hint {
    font-size: 0.75rem;
    opacity: 0.8;
    margin-top: 0.3rem;
    font-style: italic;
}

/* Gallery Modal */
.gallery-modal {
    position: fixed;
    inset: 0;
    z-index: 10001;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.5s var(--ease-out);
    padding: 1rem;
}

.gallery-modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(74, 44, 61, 0.75);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
}

.modal-content {
    position: relative;
    z-index: 2;
    width: 100%;
    max-width: 520px;
    max-height: 92vh;
    background: var(--grad-modal);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-modal);
    transform: scale(0.85) translateY(30px);
    transition: transform 0.5s var(--ease-bounce);
    display: flex;
    flex-direction: column;
}

.gallery-modal.active .modal-content {
    transform: scale(1) translateY(0);
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.9);
    color: var(--ink);
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 3;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
}

.modal-close:hover {
    transform: rotate(90deg) scale(1.1);
    background: white;
}

.modal-image-wrap {
    width: 100%;
    /* aspect-ratio for modal image */
    aspect-ratio: 3 / 4;
    min-height: 200px;
    max-height: 60vh;
    overflow: hidden;
    background: var(--pink-50);
    flex-shrink: 0;
    position: relative;
}

.modal-image-wrap img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.modal-message-area {
    padding: 2rem 2rem 1.5rem;
    text-align: center;
    flex-shrink: 0;
}

.modal-message-photo-label {
    font-family: var(--font-script);
    font-size: 1.4rem;
    color: var(--pink-400);
    margin-bottom: 0.8rem;
}

.modal-message {
    font-family: var(--font-display);
    font-style: italic;
    font-size: 1.1rem;
    color: var(--ink);
    line-height: 1.7;
    min-height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.5rem;
}

.modal-message-cn {
    font-family: var(--font-cn-serif);
    font-size: 0.95rem;
    color: var(--ink-soft);
    line-height: 1.6;
    opacity: 0.85;
}

.modal-message-heart {
    display: inline-block;
    color: var(--pink-500);
    animation: pulseHeart 1.5s ease-in-out infinite;
    margin-left: 0.3rem;
}

.modal-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    padding: 1rem 2rem 1.5rem;
}

.modal-nav-btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.7);
    color: var(--pink-600);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
    font-size: 0.9rem;
}

.modal-nav-btn:hover {
    background: white;
    transform: scale(1.1);
    box-shadow: var(--shadow-md);
}

.modal-counter {
    font-family: var(--font-script);
    font-size: 1.3rem;
    color: var(--ink-soft);
    min-width: 60px;
    text-align: center;
}

/* ---------- SECTION 3: AMAZING CARDS ---------- */
.amazing-section {
    background: linear-gradient(180deg, var(--lavender) 0%, var(--pink-50) 100%);
}

.amazing-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    justify-content: center;
}

.amazing-card {
    position: relative;
    width: 280px;
    height: 300px;
    perspective: 1000px;
    cursor: pointer;
    flex-shrink: 0;
}

.card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transition: transform 0.8s var(--ease-out);
    transform-style: preserve-3d;
    -webkit-transform-style: preserve-3d;
}

.amazing-card:hover .card-inner,
.amazing-card.flipped .card-inner {
    transform: rotateY(180deg);
}

.card-front, .card-back {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    text-align: center;
}

.card-front {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
}

.card-back {
    background: var(--grad-pink);
    transform: rotateY(180deg);
    box-shadow: var(--shadow-md);
}

.card-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.6);
    border-radius: 50%;
    transition: all 0.3s var(--ease-bounce);
}

.amazing-card:hover .card-icon {
    transform: scale(1.1) rotate(10deg);
}

.card-front-title {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--ink);
    margin-bottom: 0.3rem;
}

.card-front-title-cn {
    font-family: var(--font-cn-serif);
    font-size: 1rem;
    color: var(--ink-soft);
    opacity: 0.85;
    margin-bottom: 0.5rem;
}

.card-front-hint {
    font-size: 0.85rem;
    color: var(--muted);
    font-style: italic;
}

.card-back-text {
    font-family: var(--font-display);
    font-size: 1.1rem;
    line-height: 1.6;
    color: var(--ink);
    font-style: italic;
    margin-bottom: 0.8rem;
}

.card-back-text-cn {
    font-family: var(--font-cn-serif);
    font-size: 0.95rem;
    line-height: 1.5;
    color: var(--ink);
    opacity: 0.9;
}

.card-back-deco {
    margin-top: 1rem;
    color: var(--pink-600);
    font-size: 1.2rem;
    letter-spacing: 0.3em;
}

/* ---------- SECTION 4: TIMELINE ---------- */
.little-things-section {
    background: linear-gradient(180deg, var(--pink-50) 0%, var(--cream) 50%, var(--pink-50) 100%);
}

.timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, transparent, var(--pink-300), transparent);
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    width: 50%;
    padding: 1.5rem 3rem;
    margin-bottom: 2rem;
    box-sizing: border-box;
}

.timeline-item:nth-child(odd) {
    margin-left: 0;
    text-align: right;
    padding-right: 3rem;
    padding-left: 1rem;
}

.timeline-item:nth-child(even) {
    margin-left: 50%;
    text-align: left;
    padding-left: 3rem;
    padding-right: 1rem;
}

.timeline-dot {
    position: absolute;
    top: 2rem;
    width: 16px;
    height: 16px;
    background: var(--grad-rose);
    border-radius: 50%;
    border: 3px solid white;
    box-shadow: 0 0 0 4px var(--pink-100), var(--shadow-sm);
}

.timeline-item:nth-child(odd) .timeline-dot { right: -8px; }
.timeline-item:nth-child(even) .timeline-dot { left: -8px; }

.timeline-content {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: 1.5rem 2rem;
    box-shadow: var(--glass-shadow);
    transition: all 0.3s var(--ease-out);
}

.timeline-content:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.timeline-number {
    font-family: var(--font-script);
    font-size: 2rem;
    color: var(--pink-400);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.timeline-text {
    font-family: var(--font-display);
    font-size: 1.1rem;
    line-height: 1.6;
    color: var(--ink);
    font-style: italic;
    margin-bottom: 0.5rem;
}

.timeline-text-cn {
    font-family: var(--font-cn-serif);
    font-size: 0.95rem;
    line-height: 1.5;
    color: var(--ink-soft);
    opacity: 0.85;
}

/* ---------- SECTION 5: LETTER ---------- */
.letter-section {
    background: linear-gradient(180deg, var(--pink-50) 0%, var(--cream) 50%, var(--pink-50) 100%);
}

.letter-container {
    position: relative;
    max-width: 700px;
    margin: 0 auto;
    padding: 2rem;
}

.letter-ribbon {
    position: absolute;
    top: -25px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 3rem;
    animation: bowBob 3s ease-in-out infinite;
    z-index: 2;
}

.letter {
    background: rgba(255, 255, 255, 0.65);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: 4rem 3rem;
    box-shadow: var(--shadow-lg), 0 0 100px rgba(255, 158, 192, 0.2);
    position: relative;
    overflow: hidden;
}

.letter::before, .letter::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    height: 6px;
    background: var(--grad-rose);
}

.letter::before { top: 0; }
.letter::after { bottom: 0; }

.letter-header {
    text-align: center;
    margin-bottom: 2rem;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.8s var(--ease-out);
}

.letter-header.visible {
    opacity: 1;
    transform: translateY(0);
}

.letter-date {
    font-family: var(--font-script);
    font-size: 1.5rem;
    color: var(--pink-500);
    letter-spacing: 0.1em;
}

.letter-body {
    font-family: var(--font-display);
    font-size: 1.15rem;
    line-height: 2;
    color: var(--ink);
    min-height: 300px;
    position: relative;
}

.letter-body .typewriter-line {
    display: block;
    margin-bottom: 0.8em;
    min-height: 1.5em;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.letter-body .typewriter-line.visible {
    opacity: 1;
}

.letter-body .typewriter-line.highlight {
    color: var(--pink-600);
    font-weight: 600;
}

.letter-body .typewriter-line.cn-line {
    font-family: var(--font-cn-serif);
    font-size: 1rem;
    color: var(--ink-soft);
    opacity: 0.85;
    margin-bottom: 1.2em;
    margin-top: -0.3em;
}

.letter-body .typewriter-line.cn-line.visible {
    opacity: 0.85;
}

.typewriter-cursor {
    display: inline-block;
    width: 2px;
    height: 1.2em;
    background: var(--pink-500);
    margin-left: 2px;
    vertical-align: text-bottom;
    animation: blinkCursor 0.8s infinite;
}

.letter-signature {
    text-align: center;
    margin-top: 2rem;
    opacity: 0;
    transform: scale(0.8);
    transition: all 0.8s var(--ease-bounce);
}

.letter-signature.visible {
    opacity: 1;
    transform: scale(1);
}

.signature-heart {
    display: inline-block;
    font-size: 2.5rem;
    color: var(--pink-500);
    animation: pulseHeart 1.5s ease-in-out infinite;
}

.signature-text {
    display: block;
    font-family: var(--font-script);
    font-size: 1.8rem;
    color: var(--pink-500);
    margin-top: 0.5rem;
}

/* ---------- FOOTER ---------- */
.footer {
    background: var(--grad-soft);
    padding: 3rem 2rem;
    padding-bottom: calc(3rem + env(safe-area-inset-bottom, 0px));
    text-align: center;
    border-top: 1px solid rgba(255, 196, 214, 0.4);
}

.footer-content {
    max-width: 600px;
    margin: 0 auto;
}

.footer-hearts {
    font-size: 1.5rem;
    color: var(--pink-400);
    letter-spacing: 0.5em;
    margin-bottom: 1rem;
}

.footer-hearts span:nth-child(even) { color: var(--pink-500); }

.footer-text {
    font-family: var(--font-display);
    font-size: 1.1rem;
    color: var(--ink);
    margin-bottom: 0.3rem;
}

.footer-text-cn {
    font-family: var(--font-cn-serif);
    font-size: 0.95rem;
    color: var(--ink-soft);
    opacity: 0.85;
    margin-bottom: 0.5rem;
}

.footer-heart {
    display: inline-block;
    animation: pulseHeart 1.5s ease-in-out infinite;
}

.footer-small {
    font-family: var(--font-script);
    font-size: 1.2rem;
    color: var(--ink-soft);
    margin-bottom: 0.3rem;
}

.footer-small-cn {
    font-family: var(--font-cn-serif);
    font-size: 1rem;
    color: var(--ink-soft);
    opacity: 0.85;
}

/* ---------- BACK TO TOP ---------- */
.back-to-top {
    position: fixed;
    bottom: 6rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.8);
    box-shadow: var(--shadow-md);
    color: var(--pink-600);
    font-size: 1rem;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s var(--ease-bounce);
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-4px) scale(1.1);
    background: white;
}


/* ---------- MOBILE PERFORMANCE HELPERS ---------- */
.section,
.gallery-item,
.amazing-card,
.timeline-content,
.letter {
    -webkit-tap-highlight-color: transparent;
}

.gallery-item img,
.modal-image-wrap img {
    content-visibility: auto;
}

@media (max-width: 900px), (pointer: coarse) {
    html { scroll-padding-top: 72px; }
    body { overscroll-behavior-y: contain; }

    .gallery-item,
    .amazing-card,
    .timeline-content,
    .letter-container {
        contain: layout paint;
    }

    .gallery-item:hover,
    .timeline-content:hover,
    .amazing-card:hover .card-icon,
    .cta-button:hover,
    .explore-btn:hover,
    .back-to-top:hover,
    .music-btn:hover {
        transform: none;
    }
}