/* ============================================================
   CSS VARIABLES
   ============================================================ */
:root {
    --pink:        #ff6b9d;
    --purple:      #c678dd;
    --light-pink:  #ff9ff3;
    --dark:        #1a0828;
    --darker:      #0d0118;
    --glass:       rgba(255, 107, 157, 0.08);
    --border:      rgba(255, 107, 157, 0.25);
    --glow-pink:   0 0 30px rgba(255, 107, 157, 0.45);
    --glow-purple: 0 0 30px rgba(198, 120, 221, 0.45);

    --font-script: 'Dancing Script', cursive;
    --font-serif:  'Playfair Display', serif;
    --font-sans:   'Poppins', sans-serif;
}

/* ============================================================
   RESET & BASE
   ============================================================ */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-sans);
    background: var(--darker);
    color: #fff;
    overflow-x: hidden;
    cursor: default;
}

::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--darker); }
::-webkit-scrollbar-thumb { background: var(--pink); border-radius: 3px; }

/* ============================================================
   NAVIGATION
   ============================================================ */
.navbar {
    position: fixed;
    inset: 0 0 auto 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 2rem;
    background: rgba(13, 1, 24, 0.75);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}

.nav-brand {
    font-family: var(--font-script);
    font-size: 1.5rem;
    color: var(--pink);
    text-shadow: var(--glow-pink);
}

.music-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 0.5rem 1.4rem;
    border: none;
    border-radius: 25px;
    background: linear-gradient(135deg, var(--pink), var(--purple));
    color: #fff;
    font-family: var(--font-sans);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.25s, box-shadow 0.25s;
    box-shadow: var(--glow-pink);
}
.music-btn:hover { transform: scale(1.06); box-shadow: 0 0 40px rgba(255,107,157,.7); }
.music-btn.locked { opacity: 0.45; cursor: not-allowed; transform: none !important; box-shadow: none !important; filter: grayscale(0.4); }
.music-icon { animation: pulse 1.2s ease-in-out infinite; }

/* ============================================================
   HERO
   ============================================================ */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: radial-gradient(ellipse at 50% 40%, #2d0a50 0%, #1a0828 45%, #0d0118 100%);
}

#heroCanvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}

/* Floating CSS particles layer */
.hero-particles {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 2;
    overflow: hidden;
}

.floating-hearts {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 3;
    overflow: hidden;
}

.float-heart {
    position: absolute;
    bottom: -60px;
    opacity: 0;
    pointer-events: none;
    filter: drop-shadow(0 0 6px rgba(255,100,150,.7));
    animation: floatHeart linear infinite;
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    padding: 2rem 1.5rem;
    max-width: 820px;
}

.hero-heart {
    font-size: 5rem;
    display: block;
    margin-bottom: 0.5rem;
    animation: heartbeat 1.6s ease-in-out infinite, floatUD 3s ease-in-out infinite;
    filter: drop-shadow(0 0 24px rgba(255,100,150,.9));
}

.hero-title {
    font-family: var(--font-script);
    font-size: clamp(3.2rem, 9vw, 7.5rem);
    line-height: 1.05;
    background: linear-gradient(135deg, #ff9ff3, #ff6b9d, #c678dd);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 0 28px rgba(255,107,157,.5));
    animation: fadeDown 0.9s ease both;
}

.hero-subtitle {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: clamp(1.8rem, 5vw, 4rem);
    color: var(--light-pink);
    letter-spacing: 4px;
    margin-top: 0.3rem;
    text-shadow: 0 0 28px rgba(255,159,243,.6);
    animation: fadeUp 0.9s ease 0.25s both;
}

.hero-message {
    font-size: clamp(0.9rem, 2.2vw, 1.1rem);
    color: rgba(255,255,255,.8);
    line-height: 1.9;
    font-style: italic;
    margin: 1.5rem auto 0;
    max-width: 600px;
    animation: fadeUp 0.9s ease 0.5s both;
}

.hero-date {
    font-family: var(--font-script);
    font-size: 1.8rem;
    color: var(--pink);
    margin-top: 1rem;
    text-shadow: var(--glow-pink);
    animation: fadeUp 0.9s ease 0.75s both;
}

.surprise-btn {
    margin-top: 2rem;
    padding: 1rem 2.8rem;
    font-size: 1.05rem;
    font-weight: 600;
    font-family: var(--font-sans);
    letter-spacing: 0.5px;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    color: #fff;
    background: linear-gradient(135deg, #ff6b9d, #c678dd, #ff9ff3);
    background-size: 200% 200%;
    animation: gradientShift 3s ease infinite, fadeUp 0.9s ease 1s both;
    box-shadow: 0 6px 30px rgba(255,107,157,.5);
    transition: transform 0.25s, box-shadow 0.25s;
}
.surprise-btn:hover  { transform: translateY(-3px) scale(1.05); box-shadow: 0 12px 45px rgba(255,107,157,.7); }
.surprise-btn:active { transform: scale(0.98); }

/* ============================================================
   SHARED SECTION STYLES
   ============================================================ */
.section-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 5rem 2rem;
}

.section-title {
    font-family: var(--font-script);
    font-size: clamp(2rem, 5vw, 3.5rem);
    text-align: center;
    background: linear-gradient(135deg, var(--pink), var(--purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.section-subtitle {
    text-align: center;
    color: rgba(255,255,255,.55);
    font-size: 0.95rem;
    font-style: italic;
    margin-bottom: 3rem;
}

/* ============================================================
   COUNTDOWN
   ============================================================ */
.countdown-section {
    background: linear-gradient(180deg, #0d0118 0%, #1a0828 50%, #0d0118 100%);
}

.countdown-timer {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 1rem;
}

.time-unit {
    background: var(--glass);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 1.4rem 1.8rem;
    min-width: 105px;
    text-align: center;
    backdrop-filter: blur(10px);
    box-shadow: inset 0 0 20px rgba(255,107,157,.05), 0 0 20px rgba(255,107,157,.1);
    transition: transform 0.3s, box-shadow 0.3s;
}
.time-unit:hover { transform: translateY(-6px); box-shadow: var(--glow-pink); border-color: var(--pink); }

.time-value {
    font-family: var(--font-serif);
    font-size: 3rem;
    font-weight: 700;
    line-height: 1;
    background: linear-gradient(135deg, var(--pink), var(--light-pink));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.time-label {
    font-size: 0.72rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: rgba(255,255,255,.5);
    margin-top: 6px;
}

.time-sep {
    font-size: 3rem;
    color: var(--pink);
    font-weight: 700;
    margin-bottom: 18px;
    animation: pulse 1s ease-in-out infinite;
}

.birthday-now {
    display: none;
    text-align: center;
    margin-top: 2.5rem;
    padding: 2rem 2.5rem;
    background: var(--glass);
    border: 1px solid var(--border);
    border-radius: 20px;
    animation: glow 2s ease-in-out infinite;
}
.birthday-now .birthday-now-icon { font-size: 3rem; margin-bottom: 0.5rem; animation: heartbeat 1s infinite; }
.birthday-now h3 { font-family: var(--font-script); font-size: 2.4rem; color: var(--pink); margin-bottom: 0.5rem; }
.birthday-now p { color: rgba(255,255,255,.75); }

/* ============================================================
   GALLERY / CAROUSEL
   ============================================================ */
.gallery-section { background: linear-gradient(180deg, #0d0118, #1a0828, #0d0118); }

.carousel-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.2rem;
    min-height: 380px;
    perspective: 1200px;
    margin-bottom: 1.5rem;
}

.carousel-stage {
    position: relative;
    width: 320px;
    height: 320px;
}

/* Each slide */
.c-slide {
    position: absolute;
    inset: 0;
    border-radius: 22px;
    overflow: hidden;
    border: 2px solid var(--border);
    box-shadow: 0 20px 55px rgba(0,0,0,.55);
    transition: all 0.75s cubic-bezier(.25,.46,.45,.94);
    opacity: 0;
    pointer-events: none;
    transform: scale(0.75) translateX(0) rotateY(0deg);
}
.c-slide.is-active {
    opacity: 1;
    pointer-events: all;
    transform: scale(1) translateX(0) rotateY(0deg);
    z-index: 10;
    box-shadow: 0 20px 60px rgba(255,107,157,.3);
    border-color: rgba(255,107,157,.5);
}
.c-slide.is-prev {
    opacity: 0.45;
    transform: scale(0.8) translateX(-260px) rotateY(28deg);
    z-index: 5;
}
.c-slide.is-next {
    opacity: 0.45;
    transform: scale(0.8) translateX(260px) rotateY(-28deg);
    z-index: 5;
}

.c-slide img { width: 100%; height: 100%; object-fit: cover; display: block; }

.slide-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.8rem;
    background: linear-gradient(135deg, rgba(255,107,157,.18), rgba(198,120,221,.18));
}
.slide-placeholder .ph-icon { font-size: 3rem; animation: pulse 2s ease-in-out infinite; }
.slide-placeholder p { font-family: var(--font-script); font-size: 1.15rem; color: rgba(255,255,255,.7); }

.carousel-btn {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: 1px solid rgba(255,107,157,.4);
    background: rgba(255,107,157,.15);
    color: var(--pink);
    font-size: 1.2rem;
    cursor: pointer;
    backdrop-filter: blur(10px);
    transition: all 0.25s;
    z-index: 20;
}
.carousel-btn:hover { background: rgba(255,107,157,.35); box-shadow: var(--glow-pink); transform: scale(1.12); }

.carousel-dots { display: flex; justify-content: center; gap: 8px; }

.dot {
    width: 10px; height: 10px;
    border-radius: 50%;
    background: rgba(255,107,157,.3);
    border: 1px solid rgba(255,107,157,.5);
    cursor: pointer;
    transition: all 0.3s;
}
.dot.active { background: var(--pink); box-shadow: var(--glow-pink); transform: scale(1.35); }

/* ============================================================
   TIMELINE
   ============================================================ */
.timeline-section { background: linear-gradient(180deg, #0d0118, #1a0828); }

.timeline {
    position: relative;
    max-width: 780px;
    margin: 0 auto;
}

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

.tl-item {
    position: relative;
    padding: 1.2rem 0;
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.tl-item.visible { opacity: 1; transform: translateY(0); }

.tl-left  { padding-right: calc(50% + 44px); text-align: right; }
.tl-right { padding-left:  calc(50% + 44px); text-align: left; }

/* Timeline dot */
.tl-item::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 18px; height: 18px;
    background: var(--pink);
    border-radius: 50%;
    border: 3px solid var(--darker);
    transform: translateY(-50%);
    box-shadow: var(--glow-pink);
    z-index: 5;
}
.tl-left::after  { right: calc(50% - 9px); }
.tl-right::after { left:  calc(50% - 9px); }

.tl-card {
    background: var(--glass);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 1.4rem 1.6rem;
    backdrop-filter: blur(10px);
    transition: background 0.3s, box-shadow 0.3s, transform 0.3s;
}
.tl-card:hover { background: rgba(255,107,157,.14); box-shadow: var(--glow-pink); transform: scale(1.02); }

.tl-icon { font-size: 1.8rem; display: block; margin-bottom: 0.4rem; }
.tl-card h3 { font-family: var(--font-script); font-size: 1.45rem; color: var(--pink); margin-bottom: 0.2rem; }
.tl-date { font-size: 0.75rem; color: var(--light-pink); letter-spacing: 1px; font-weight: 600; display: block; margin-bottom: 0.5rem; }
.tl-card p { font-size: 0.88rem; line-height: 1.75; color: rgba(255,255,255,.8); }

/* ============================================================
   LOVE LETTER
   ============================================================ */
.letter-section { background: linear-gradient(180deg, #1a0828, #0d0118); }

.love-letter {
    position: relative;
    max-width: 700px;
    margin: 0 auto;
    background: var(--glass);
    border: 1px solid var(--border);
    border-radius: 28px;
    padding: 3rem;
    backdrop-filter: blur(12px);
    box-shadow: 0 20px 60px rgba(255,107,157,.1);
}

/* Gradient border glow */
.love-letter::before {
    content: '';
    position: absolute;
    inset: -1px;
    border-radius: 29px;
    background: linear-gradient(135deg, var(--pink), transparent 40%, var(--purple));
    z-index: -1;
    opacity: 0.35;
}

.letter-header { text-align: center; margin-bottom: 2rem; }
.letter-icon { font-size: 3rem; display: block; margin-bottom: 0.8rem; animation: pulse 2s ease-in-out infinite; }
.letter-header h2 {
    font-family: var(--font-script);
    font-size: 2.4rem;
    background: linear-gradient(135deg, var(--pink), var(--purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.letter-body { font-size: 0.97rem; line-height: 1.95; color: rgba(255,255,255,.84); }
.letter-sig { font-family: var(--font-script); font-size: 1.5rem; color: var(--pink); text-align: right; margin-top: 0.5rem; }

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
    background: var(--darker);
    border-top: 1px solid var(--border);
    text-align: center;
    padding: 2.5rem 2rem;
}
.footer-hearts { font-size: 1.4rem; letter-spacing: 5px; margin-bottom: 0.8rem; animation: pulse 2s ease-in-out infinite; }
.footer p { color: rgba(255,255,255,.55); font-size: 0.88rem; margin: 0.25rem 0; }
.footer-date { font-family: var(--font-script); font-size: 1.2rem !important; color: var(--pink) !important; margin-top: 0.5rem !important; }

/* ============================================================
   MODAL
   ============================================================ */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.82);
    backdrop-filter: blur(12px);
    z-index: 9000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}
.modal-overlay.active { opacity: 1; pointer-events: all; }

.modal {
    position: relative;
    background: linear-gradient(135deg, #1e0a35, #2d0a50);
    border: 1px solid rgba(255,107,157,.4);
    border-radius: 28px;
    padding: 3rem 2.5rem;
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    text-align: center;
    box-shadow: 0 20px 80px rgba(255,107,157,.3), inset 0 0 60px rgba(255,107,157,.04);
    transform: scale(0.8) translateY(20px);
    transition: transform 0.35s cubic-bezier(.34,1.56,.64,1);
}
.modal-overlay.active .modal { transform: scale(1) translateY(0); }

.modal-close {
    position: absolute;
    top: 1rem; right: 1rem;
    width: 34px; height: 34px;
    border-radius: 50%;
    border: 1px solid rgba(255,107,157,.35);
    background: rgba(255,107,157,.15);
    color: var(--pink);
    font-size: 0.95rem;
    cursor: pointer;
    transition: background 0.2s, transform 0.2s;
}
.modal-close:hover { background: rgba(255,107,157,.35); transform: rotate(90deg); }

.modal-hearts { font-size: 3rem; display: block; margin-bottom: 0.8rem; animation: heartbeat 1s ease-in-out infinite; }

.modal h2 {
    font-family: var(--font-script);
    font-size: 2.6rem;
    background: linear-gradient(135deg, var(--pink), var(--light-pink));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1.4rem;
}

.modal-msg { font-size: 0.95rem; color: rgba(255,255,255,.85); line-height: 1.85; }
.modal-wish { font-family: var(--font-script); font-size: 1.3rem; color: var(--pink); margin-top: 0.8rem; }

.modal-btn {
    margin-top: 2rem;
    padding: 0.8rem 2.2rem;
    border: none;
    border-radius: 50px;
    background: linear-gradient(135deg, var(--pink), var(--purple));
    color: #fff;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    box-shadow: var(--glow-pink);
    transition: transform 0.25s, box-shadow 0.25s;
}
.modal-btn:hover { transform: scale(1.06); box-shadow: 0 0 40px rgba(255,107,157,.7); }

/* ============================================================
   ANIMATIONS
   ============================================================ */
@keyframes heartbeat {
    0%, 100% { transform: scale(1); }
    50%       { transform: scale(1.22); }
}

@keyframes floatUD {
    0%, 100% { transform: translateY(0); }
    50%       { transform: translateY(-14px); }
}

@keyframes floatHeart {
    0%   { opacity: 0;   transform: translateY(0)     rotate(0deg)   scale(0.6); }
    8%   { opacity: 0.9; }
    90%  { opacity: 0.8; }
    100% { opacity: 0;   transform: translateY(-110vh) rotate(720deg) scale(1.4); }
}

@keyframes fadeDown {
    from { opacity: 0; transform: translateY(-25px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(25px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
    0%, 100% { transform: scale(1);    opacity: 1; }
    50%       { transform: scale(1.07); opacity: 0.8; }
}

@keyframes gradientShift {
    0%   { background-position: 0%   50%; }
    50%  { background-position: 100% 50%; }
    100% { background-position: 0%   50%; }
}

@keyframes glow {
    0%, 100% { box-shadow: 0 0 20px rgba(255,107,157,.25); }
    50%       { box-shadow: 0 0 45px rgba(255,107,157,.6); }
}

@keyframes starFloat {
    0%   { transform: translateY(0) rotate(0deg);   opacity: 0; }
    15%  { opacity: 1; }
    85%  { opacity: 1; }
    100% { transform: translateY(-80px) rotate(180deg); opacity: 0; }
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 768px) {
    .navbar { padding: 0.75rem 1rem; }
    .nav-brand { font-size: 1.15rem; }
    .music-text { display: none; }

    .hero-heart { font-size: 3.2rem; }
    .section-container { padding: 3.5rem 1.25rem; }

    /* Countdown */
    .countdown-timer { gap: 0.5rem; }
    .time-unit { padding: 1rem 1.1rem; min-width: 72px; }
    .time-value { font-size: 2rem; }
    .time-sep   { font-size: 2rem; }

    /* Carousel */
    .carousel-stage { width: 260px; height: 260px; }
    .c-slide.is-prev, .c-slide.is-next { display: none; }

    /* Timeline — stack vertically */
    .timeline::before { left: 18px; }
    .tl-item { padding-left: 55px !important; padding-right: 0 !important; text-align: left !important; }
    .tl-item::after { left: 9px !important; right: auto !important; }

    /* Letter */
    .love-letter { padding: 2rem 1.4rem; }

    /* Modal */
    .modal { padding: 2.2rem 1.5rem; }
    .modal h2 { font-size: 2rem; }
}

@media (max-width: 420px) {
    .time-unit { padding: 0.8rem 0.85rem; min-width: 62px; }
    .time-value { font-size: 1.7rem; }
    .time-sep   { font-size: 1.7rem; }
    .carousel-stage { width: 220px; height: 220px; }
}

/* ============================================================
   SURPRISE BUTTON — LOCK STATE
   ============================================================ */
.surprise-wrap {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.6rem;
}

.surprise-btn.locked {
    background: linear-gradient(135deg, #4a2060, #6a3080) !important;
    box-shadow: 0 6px 25px rgba(100, 50, 120, 0.5) !important;
    cursor: not-allowed;
    opacity: 0.75;
}
.surprise-btn.locked:hover { transform: none !important; box-shadow: 0 6px 25px rgba(100,50,120,.5) !important; }

.lock-info {
    display: none;
    align-items: center;
    gap: 6px;
    font-size: 0.82rem;
    color: rgba(255,255,255,.6);
    font-family: var(--font-sans);
    background: rgba(255,255,255,.07);
    padding: 0.35rem 1rem;
    border-radius: 20px;
    border: 1px solid rgba(255,255,255,.12);
    backdrop-filter: blur(8px);
    animation: pulse 2s ease-in-out infinite;
}
.lock-icon-sm { font-size: 0.9rem; }

/* ============================================================
   SURPRISE EXPERIENCE — FULL-SCREEN OVERLAY
   ============================================================ */
.sx-overlay {
    position: fixed;
    inset: 0;
    z-index: 9500;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s ease;
    overflow: hidden;
}
.sx-overlay.active {
    opacity: 1;
    pointer-events: all;
}

/* Dark starfield background behind the card */
.sx-overlay::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 50% 50%, #2a0440 0%, #0d0118 70%);
    z-index: 0;
}

.sx-bg-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
}

.sx-bg-hearts {
    position: absolute;
    inset: 0;
    z-index: 2;
    pointer-events: none;
    overflow: hidden;
}

/* ── The main card ── */
.sx-card {
    position: relative;
    z-index: 10;
    width: 100%;
    max-width: 940px;
    max-height: 90vh;
    border-radius: 28px;
    overflow: hidden;
    background: linear-gradient(135deg, rgba(30,10,55,.96), rgba(20,6,38,.98));
    border: 1px solid rgba(255,107,157,.35);
    box-shadow:
        0 0 0 1px rgba(255,107,157,.1),
        0 30px 80px rgba(0,0,0,.7),
        0 0 60px rgba(255,107,157,.12),
        inset 0 1px 0 rgba(255,255,255,.06);
    transform: scale(0.88) translateY(30px);
    transition: transform 0.45s cubic-bezier(.34,1.4,.64,1);
    /* Ribbon + split stack vertically */
    display: flex;
    flex-direction: column;
}
.sx-overlay.active .sx-card {
    transform: scale(1) translateY(0);
}

/* Close button */
.sx-close {
    position: absolute;
    top: 1rem; right: 1rem;
    width: 36px; height: 36px;
    border-radius: 50%;
    border: 1px solid rgba(255,107,157,.4);
    background: rgba(255,107,157,.12);
    color: var(--pink);
    font-size: 1rem;
    cursor: pointer;
    z-index: 20;
    transition: background 0.2s, transform 0.25s;
}
.sx-close:hover { background: rgba(255,107,157,.3); transform: rotate(90deg) scale(1.1); }

/* ── Split layout ── */
.sx-split {
    display: flex;
    flex: 1;          /* fills remaining height below ribbon */
    min-height: 480px;
    overflow: hidden;
}

/* LEFT — 3D canvas panel */
.sx-left {
    position: relative;
    width: 42%;
    flex-shrink: 0;
    background: linear-gradient(160deg, #1e0438, #2d0650);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-end;
    padding-bottom: 2rem;
}

/* Pink/purple radial glow behind the heart */
.sx-left-glow {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 50% 45%, rgba(255,107,157,.18) 0%, transparent 65%),
        radial-gradient(circle at 30% 70%, rgba(198,120,221,.12) 0%, transparent 55%);
    pointer-events: none;
}

.sx-heart-canvas {
    position: absolute;
    inset: 0;
    width: 100% !important;
    height: 100% !important;
}

.sx-left-label {
    position: relative;
    z-index: 5;
    text-align: center;
    font-family: var(--font-script);
    font-size: 1.3rem;
    color: rgba(255,255,255,.7);
    line-height: 1.5;
    text-shadow: 0 0 20px rgba(255,107,157,.5);
}
.sx-left-label span {
    font-size: 1.6rem;
    color: var(--pink);
    display: block;
}

/* RIGHT — content panel */
.sx-right {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 2rem 1.8rem 1.5rem;
    overflow: hidden;
}

/* ── Tab navigation ── */
.sx-tab-nav {
    display: flex;
    gap: 0.4rem;
    margin-bottom: 1.4rem;
    border-bottom: 1px solid rgba(255,107,157,.15);
    padding-bottom: 0.8rem;
    flex-shrink: 0;
}

.sx-tab {
    padding: 0.45rem 1rem;
    border-radius: 20px;
    border: 1px solid rgba(255,107,157,.2);
    background: rgba(255,107,157,.06);
    color: rgba(255,255,255,.55);
    font-family: var(--font-sans);
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.25s;
    white-space: nowrap;
}
.sx-tab:hover { background: rgba(255,107,157,.15); color: rgba(255,255,255,.85); }
.sx-tab.active {
    background: linear-gradient(135deg, rgba(255,107,157,.3), rgba(198,120,221,.25));
    border-color: rgba(255,107,157,.5);
    color: #fff;
    box-shadow: 0 0 12px rgba(255,107,157,.2);
}

/* ── Panels ── */
.sx-panel {
    display: none;
    flex: 1;
    overflow-y: auto;
    padding-right: 4px;
}
.sx-panel.active { display: flex; flex-direction: column; }

/* Scrollbar inside panels */
.sx-panel::-webkit-scrollbar { width: 3px; }
.sx-panel::-webkit-scrollbar-track { background: transparent; }
.sx-panel::-webkit-scrollbar-thumb { background: rgba(255,107,157,.4); border-radius: 3px; }

/* ── Message panel ── */
.sx-msg-scroll {
    font-family: var(--font-sans);
    font-size: 0.95rem;
    line-height: 1.95;
    color: rgba(255,255,255,.88);
    flex: 1;
}

.sx-typed {
    white-space: pre-wrap;
    font-style: italic;
}

.sx-cursor {
    display: inline-block;
    color: var(--pink);
    animation: blink 0.9s step-end infinite;
    font-weight: 300;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50%       { opacity: 0; }
}

/* ── Video panel ── */
.sx-video-area {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    flex: 1;
}

/* Portrait phone / Reel frame */
.sx-video-player {
    aspect-ratio: 9 / 16;
    max-height: 340px;
    width: auto;
    border-radius: 18px;
    overflow: hidden;
    background: #000;
    border: 2px solid rgba(255,107,157,.35);
    box-shadow:
        0 0 0 4px rgba(255,107,157,.1),
        0 12px 40px rgba(0,0,0,.6),
        0 0 30px rgba(255,107,157,.15);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.sx-video-player video {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
}

.sx-video-ph {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.7rem;
    padding: 2.5rem;
    color: rgba(255,255,255,.5);
    font-size: 0.88rem;
    text-align: center;
}
.sx-video-ph .ph-big { font-size: 2.8rem; animation: pulse 2s ease-in-out infinite; }

.sx-video-thumbs {
    display: flex;
    gap: 0.6rem;
    flex-wrap: wrap;
}

.sx-vid-thumb {
    width: 46px; height: 72px;
    border-radius: 8px;
    overflow: hidden;
    border: 2px solid rgba(255,107,157,.2);
    cursor: pointer;
    transition: all 0.2s;
    background: rgba(255,107,157,.08);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    position: relative;
    flex-shrink: 0;
}
.sx-vid-thumb:hover  { border-color: var(--pink); transform: scale(1.07); box-shadow: var(--glow-pink); }
.sx-vid-thumb.active { border-color: var(--pink); box-shadow: var(--glow-pink); }
.sx-vid-thumb video  { width: 100%; height: 100%; object-fit: cover; pointer-events: none; }
.sx-vid-label {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,.35);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
}

/* ── Memories (photo grid) panel ── */
.sx-mem-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
    padding: 0.2rem;
}

.sx-mem-item {
    aspect-ratio: 1;
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid rgba(255,107,157,.2);
    cursor: pointer;
    transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
    background: rgba(255,107,157,.08);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}
.sx-mem-item:hover { transform: scale(1.06); box-shadow: var(--glow-pink); border-color: var(--pink); }
.sx-mem-item img { width: 100%; height: 100%; object-fit: cover; display: block; }

/* ── CTA button ── */
.sx-cta {
    margin-top: 1.2rem;
    padding: 0.85rem 2rem;
    border: none;
    border-radius: 50px;
    background: linear-gradient(135deg, var(--pink), var(--purple));
    color: #fff;
    font-size: 1rem;
    font-weight: 600;
    font-family: var(--font-sans);
    cursor: pointer;
    box-shadow: var(--glow-pink);
    transition: transform 0.25s, box-shadow 0.25s;
    align-self: center;
    flex-shrink: 0;
    background-size: 200% 200%;
    animation: gradientShift 3s ease infinite;
}
.sx-cta:hover { transform: scale(1.06) translateY(-2px); box-shadow: 0 0 45px rgba(255,107,157,.7); }

/* ============================================================
   SURPRISE — RESPONSIVE
   ============================================================ */
@media (max-width: 700px) {
    .sx-card { max-height: 95vh; border-radius: 22px; }

    .sx-split {
        flex-direction: column;
        min-height: unset;
        max-height: unset;
    }

    /* Left becomes a shorter top strip */
    .sx-left {
        width: 100%;
        height: 200px;
        flex-shrink: 0;
        justify-content: center;
        padding-bottom: 1rem;
    }

    .sx-left-label { font-size: 1rem; }
    .sx-left-label span { font-size: 1.25rem; }

    .sx-right {
        padding: 1.2rem 1.2rem 1rem;
        overflow-y: auto;
        flex: 1;
    }

    .sx-tab-nav { gap: 0.3rem; }
    .sx-tab { padding: 0.4rem 0.7rem; font-size: 0.73rem; }

    .sx-mem-grid { grid-template-columns: repeat(3, 1fr); gap: 0.4rem; }

    .sx-video-player { max-height: 240px; }

    .sx-cta { padding: 0.75rem 1.6rem; font-size: 0.9rem; }
}

/* ============================================================
   COUNTDOWN — HYPE REDESIGN
   ============================================================ */
.countdown-section {
    position: relative;
    overflow: hidden;
    background: linear-gradient(180deg, #0d0118 0%, #1a0828 50%, #0d0118 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.cd-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.cd-container {
    position: relative;
    z-index: 2;
    text-align: center;
    padding-top: 6rem;
    padding-bottom: 6rem;
}

/* Animated badge */
.cd-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 0.5rem 1.4rem;
    border-radius: 30px;
    border: 1px solid rgba(255,107,157,.35);
    background: rgba(255,107,157,.08);
    backdrop-filter: blur(10px);
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--light-pink);
    margin-bottom: 2rem;
    animation: fadeDown 0.8s ease both;
}
.cd-badge-dot {
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--pink);
    box-shadow: 0 0 8px var(--pink);
    animation: pulse 1.2s ease-in-out infinite;
    flex-shrink: 0;
}

/* Headline */
.cd-headline {
    display: flex;
    flex-direction: column;
    gap: 0.1rem;
    margin-bottom: 1.2rem;
    animation: fadeDown 0.9s ease 0.1s both;
}
.cd-line-top {
    font-family: var(--font-sans);
    font-weight: 300;
    font-size: clamp(1rem, 3vw, 1.5rem);
    letter-spacing: 6px;
    text-transform: uppercase;
    color: rgba(255,255,255,.5);
}
.cd-line-mid {
    font-family: var(--font-script);
    font-size: clamp(4.5rem, 13vw, 10rem);
    line-height: 0.95;
    background: linear-gradient(135deg, #ff9ff3, #ff6b9d, #c678dd, #ff9ff3);
    background-size: 300% 300%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 4s ease infinite;
    filter: drop-shadow(0 0 40px rgba(255,107,157,.5));
}
.cd-line-bot {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: clamp(1.1rem, 3.5vw, 2rem);
    color: var(--light-pink);
    letter-spacing: 3px;
}

/* Subtitle */
.cd-sub {
    font-size: clamp(0.88rem, 2vw, 1rem);
    color: rgba(255,255,255,.6);
    font-style: italic;
    line-height: 1.9;
    margin-bottom: 3.5rem;
    animation: fadeUp 0.9s ease 0.25s both;
}

/* Decorative rings around timer */
.cd-ring-wrap {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 2.5rem;
    padding: 3rem 0;
}

.cd-ring {
    position: absolute;
    border-radius: 50%;
    border: 1px solid rgba(255,107,157,.15);
    pointer-events: none;
}
.cd-ring-1 { width: 420px; height: 420px; animation: spinRing 18s linear infinite;   border-color: rgba(255,107,157,.12); }
.cd-ring-2 { width: 540px; height: 540px; animation: spinRing 28s linear infinite reverse; border-color: rgba(198,120,221,.1); }
.cd-ring-3 { width: 660px; height: 660px; animation: spinRing 40s linear infinite;   border-color: rgba(255,159,243,.07); }

/* Small dots on rings */
.cd-ring::before, .cd-ring::after {
    content: '';
    position: absolute;
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--pink);
    box-shadow: 0 0 10px var(--pink);
}
.cd-ring::before { top: -3px; left: 50%; transform: translateX(-50%); }
.cd-ring::after  { bottom: -3px; left: 50%; transform: translateX(-50%); }

@keyframes spinRing {
    from { transform: rotate(0deg); }
    to   { transform: rotate(360deg); }
}

/* Override timer styles for hype version */
.cd-ring-wrap .countdown-timer {
    position: relative;
    z-index: 5;
    gap: 1.2rem;
}
.cd-ring-wrap .time-unit {
    min-width: 120px;
    padding: 1.6rem 1.4rem;
    background: rgba(255,107,157,.07);
    border: 1px solid rgba(255,107,157,.25);
    border-radius: 20px;
    backdrop-filter: blur(20px);
    box-shadow: 0 0 30px rgba(255,107,157,.1), inset 0 1px 0 rgba(255,255,255,.06);
    transition: transform 0.3s, box-shadow 0.3s;
}
.cd-ring-wrap .time-unit:hover { transform: translateY(-8px); box-shadow: var(--glow-pink); }
.cd-ring-wrap .time-value { font-size: 3.5rem; }
.cd-ring-wrap .time-label { font-size: 0.7rem; letter-spacing: 3px; margin-top: 8px; }
.cd-ring-wrap .time-sep   { font-size: 3.5rem; margin-bottom: 22px; }

/* Hype rotating message */
.cd-hype-wrap {
    min-height: 2.2rem;
    margin-bottom: 1.5rem;
}
.cd-hype {
    font-size: clamp(0.82rem, 2vw, 0.95rem);
    color: rgba(255,255,255,.55);
    font-style: italic;
    letter-spacing: 0.5px;
    transition: opacity 0.6s ease;
}
.cd-hype.fade { opacity: 0; }

/* Unlock hint */
.cd-unlock-hint {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    color: rgba(255,255,255,.35);
    padding: 0.4rem 1.2rem;
    border-radius: 20px;
    border: 1px solid rgba(255,255,255,.08);
    letter-spacing: 0.5px;
}

/* ============================================================
   LOCK VEIL — blurred section overlay
   ============================================================ */

/* Lockable section: position context + blur children */
section.lockable {
    position: relative;
    overflow: hidden;
}

section.lockable .section-container,
footer.lockable > *:not(.lock-veil) {
    filter: blur(18px);
    opacity: 0.18;
    pointer-events: none;
    user-select: none;
    transition: filter 1.4s ease, opacity 1.4s ease;
}

/* Revealed state */
section.lockable.revealed .section-container,
footer.lockable.revealed > *:not(.lock-veil) {
    filter: none;
    opacity: 1;
    pointer-events: all;
    user-select: auto;
}
section.lockable.revealed .lock-veil,
footer.lockable.revealed .lock-veil {
    opacity: 0;
    transform: scale(1.08);
    pointer-events: none;
}

/* The overlay itself */
.lock-veil {
    position: absolute;
    inset: 0;
    z-index: 50;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(13,1,24,.55);
    backdrop-filter: blur(6px);
    transition: opacity 1s ease, transform 1s ease;
}

/* Veil content box */
.veil-box {
    position: relative;
    text-align: center;
    padding: 2.5rem 3rem;
    background: rgba(255,107,157,.06);
    border: 1px solid rgba(255,107,157,.2);
    border-radius: 28px;
    backdrop-filter: blur(20px);
    box-shadow: 0 0 60px rgba(255,107,157,.08), inset 0 1px 0 rgba(255,255,255,.06);
    max-width: 320px;
    width: 90%;
}

/* Animated rings behind veil box */
.veil-rings { position: absolute; inset: 0; pointer-events: none; }
.vr {
    position: absolute;
    border-radius: 50%;
    border: 1px solid rgba(255,107,157,.15);
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
}
.vr1 { width: 260px; height: 260px; animation: spinRing 12s linear infinite; }
.vr2 { width: 340px; height: 340px; animation: spinRing 20s linear infinite reverse; }

.veil-emoji {
    font-size: 3rem;
    display: block;
    margin-bottom: 1rem;
    animation: floatUD 3s ease-in-out infinite;
    filter: drop-shadow(0 0 12px rgba(255,107,157,.6));
}

.veil-box h3 {
    font-family: var(--font-script);
    font-size: 1.8rem;
    color: var(--pink);
    margin-bottom: 0.5rem;
    text-shadow: var(--glow-pink);
}

.veil-box p {
    font-size: 0.88rem;
    color: rgba(255,255,255,.6);
    font-style: italic;
    line-height: 1.6;
}

/* Sparkle elements inside veil */
.veil-sparks {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
    border-radius: 28px;
}
.veil-sparks::before,
.veil-sparks::after {
    content: '✨';
    position: absolute;
    font-size: 1rem;
    animation: sparkleFloat 3s ease-in-out infinite;
    opacity: 0.6;
}
.veil-sparks::before { top: 15%; left: 10%; animation-delay: 0s; }
.veil-sparks::after  { bottom: 20%; right: 10%; animation-delay: 1.5s; }

@keyframes sparkleFloat {
    0%, 100% { transform: translateY(0) rotate(0deg);   opacity: 0.4; }
    50%       { transform: translateY(-8px) rotate(20deg); opacity: 0.9; }
}

/* Footer lockable (no section-container) */
footer.lockable {
    position: relative;
    overflow: hidden;
}
footer.lockable > *:not(.lock-veil) {
    filter: blur(18px);
    opacity: 0.18;
    pointer-events: none;
    transition: filter 1.4s ease, opacity 1.4s ease;
}
footer.lockable.revealed > *:not(.lock-veil) {
    filter: none;
    opacity: 1;
    pointer-events: all;
}

/* Countdown ring responsive */
@media (max-width: 768px) {
    .cd-ring-1 { width: 280px; height: 280px; }
    .cd-ring-2 { width: 360px; height: 360px; }
    .cd-ring-3 { display: none; }
    .cd-ring-wrap { padding: 2rem 0; }
    .cd-ring-wrap .time-unit { min-width: 72px; padding: 1rem 0.9rem; }
    .cd-ring-wrap .time-value { font-size: 2.2rem; }
    .cd-ring-wrap .time-sep   { font-size: 2.2rem; }
    .countdown-section { min-height: auto; padding: 4rem 0; }
    .cd-container { padding-top: 5rem; padding-bottom: 4rem; }
    .veil-box { padding: 2rem 1.5rem; }
    .vr1 { width: 200px; height: 200px; }
    .vr2 { width: 270px; height: 270px; }
}

/* ============================================================
   SURPRISE CARD — MORE BEAUTIFUL
   ============================================================ */

/* Animated rotating gradient border */
.sx-card::after {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: 30px;
    background: linear-gradient(0deg,
        #ff6b9d, #c678dd, #ff9ff3, #ffffff,
        #ff9ff3, #c678dd, #ff6b9d);
    background-size: 100% 400%;
    animation: borderScroll 4s linear infinite;
    z-index: -1;
    opacity: 0.55;
}
@keyframes borderScroll {
    0%   { background-position: 0% 0%; }
    100% { background-position: 0% 100%; }
}

/* Glow pulse on card */
.sx-card {
    animation: cardPulseGlow 4s ease-in-out infinite;
}
@keyframes cardPulseGlow {
    0%, 100% { box-shadow: 0 0 0 1px rgba(255,107,157,.1), 0 30px 80px rgba(0,0,0,.7), 0 0 60px rgba(255,107,157,.12); }
    50%       { box-shadow: 0 0 0 1px rgba(255,107,157,.15), 0 30px 80px rgba(0,0,0,.7), 0 0 100px rgba(255,107,157,.25); }
}

/* Ribbon banner — full-width strip at the very top of the card */
.sx-ribbon {
    position: relative;
    z-index: 30;
    width: 100%;
    text-align: center;
    padding: 0.55rem 1rem;
    background: linear-gradient(90deg, transparent, rgba(255,107,157,.18) 20%, rgba(198,120,221,.22) 50%, rgba(255,107,157,.18) 80%, transparent);
    border-bottom: 1px solid rgba(255,107,157,.25);
    font-family: var(--font-script);
    font-size: 1.1rem;
    color: var(--light-pink);
    letter-spacing: 2px;
    text-shadow: 0 0 16px rgba(255,107,157,.6);
    animation: ribbonGlow 3s ease-in-out infinite;
    flex-shrink: 0;
}

@keyframes ribbonGlow {
    0%, 100% { text-shadow: 0 0 12px rgba(255,107,157,.5); }
    50%       { text-shadow: 0 0 28px rgba(255,107,157,.9), 0 0 50px rgba(198,120,221,.5); }
}

/* Left panel — richer background */
.sx-left {
    background: linear-gradient(160deg, #200845, #320a65, #1e0438);
}
.sx-left::after {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 50% 40%, rgba(255,107,157,.22) 0%, transparent 60%),
        radial-gradient(circle at 20% 80%, rgba(198,120,221,.18) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255,159,243,.12) 0%, transparent 45%);
    pointer-events: none;
}

/* Tab active — brighter */
.sx-tab.active {
    background: linear-gradient(135deg, rgba(255,107,157,.4), rgba(198,120,221,.35));
    border-color: rgba(255,107,157,.7);
    box-shadow: 0 0 18px rgba(255,107,157,.3), inset 0 1px 0 rgba(255,255,255,.1);
    text-shadow: 0 0 10px rgba(255,107,157,.5);
}

/* Message panel — better font + indent */
.sx-msg-scroll {
    padding: 0.2rem 0.3rem;
}
.sx-typed {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: 1rem;
    line-height: 2.1;
    color: rgba(255,255,255,.92);
}

/* CTA — more dramatic */
.sx-cta {
    font-size: 1.05rem;
    padding: 1rem 2.5rem;
    letter-spacing: 0.5px;
    box-shadow: 0 6px 30px rgba(255,107,157,.5), 0 0 0 1px rgba(255,107,157,.2);
}

/* Overlay bg canvas (shooting stars) */
.sx-bg-canvas {
    opacity: 0.7;
}

/* Shake animation for locked button */
@keyframes shakeLock {
    0%, 100% { transform: translateX(0); }
    20%       { transform: translateX(-8px) rotate(-2deg); }
    40%       { transform: translateX(8px)  rotate(2deg); }
    60%       { transform: translateX(-5px); }
    80%       { transform: translateX(5px); }
}