/* ══════════════════════════════════════════════
   FRIENDSHIP DAY — For My Ankuu
   Fonts: Fraunces, Quicksand, Caveat
   Palette: Pink, Cream, Lavender
══════════════════════════════════════════════ */
:root {
    --pink-soft:    #ffeef4;
    --pink-mid:     #f5c6d6;
    --pink-deep:    #ca789b;
    --pink-dark:    #b15e8a;
    --peach:        #fce4d6;
    --cream:        #fffef7;
    --lavender:     #e8daf7;
    --lavender-deep:#c4a6e3;
    --text-dark:    #2c2b3a;
    --text-mid:     #5e4b5a;
    --text-light:   #a0697e;
    --bg:           linear-gradient(145deg, #f9f3e6 0%, #ffe6f0 50%, #f0e0f8 100%);
    --glass-bg:     rgba(255, 255, 255, 0.55);
    --glass-border: rgba(255, 255, 255, 0.85);
    --glass-shadow: 0 12px 40px rgba(202, 120, 155, 0.18);
}

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

html, body {
    height: 100%;
    overflow-x: clip;
    font-family: 'Quicksand', sans-serif;
    background: var(--bg);
    color: var(--text-dark);
    -webkit-tap-highlight-color: transparent;
}

.cursive { font-family: 'Caveat', cursive; }

/* ══════ AMBIENT ══════ */
#particles-canvas {
    position: fixed; inset: 0;
    pointer-events: none; z-index: 0;
}
#floating-hearts {
    position: fixed; inset: 0;
    pointer-events: none; z-index: 0;
    overflow: hidden;
}
.float-heart {
    position: absolute; bottom: -20px;
    font-size: 1rem; opacity: 0;
    animation: floatUp linear infinite;
}
@keyframes floatUp {
    0%   { opacity: 0; transform: translateY(0) rotate(0deg); }
    10%  { opacity: 0.6; }
    90%  { opacity: 0.2; }
    100% { opacity: 0; transform: translateY(-100vh) rotate(360deg); }
}

/* ══════ SECTIONS ══════ */
.sec {
    position: fixed; inset: 0;
    z-index: 10;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    overflow-y: auto;
    padding: 2rem 1rem;
    -webkit-overflow-scrolling: touch;
}
.sec.hidden { display: none; }
.sec.active { display: flex; animation: fadeIn 0.7s ease forwards; }

#sec-0 { background: var(--bg); }
#sec-1 { background: linear-gradient(145deg, #1a1228 0%, #2a1a2e 50%, #1a2030 100%); }
#sec-2 { background: var(--bg); }
#sec-3 { background: var(--bg); }
#sec-4 { background: var(--bg); }
#sec-5 { background: linear-gradient(145deg, #1a1228 0%, #231530 50%, #1a2030 100%); }
#sec-6 { background: var(--bg); }

@keyframes fadeIn {
    from { opacity: 0; transform: scale(0.98); }
    to   { opacity: 1; transform: scale(1); }
}

.sec-inner {
    position: relative; z-index: 2;
    display: flex; flex-direction: column;
    align-items: center; text-align: center;
    gap: 1.5rem;
    padding: clamp(2rem, 5vh, 4rem) 1.5rem;
    margin: auto 0;
    max-width: 560px; width: 100%;
}

/* ══════ SHARED UI ══════ */
.pill-badge {
    display: inline-block;
    background: rgba(255,255,255,0.7);
    backdrop-filter: blur(10px);
    padding: 0.4rem 1.2rem;
    border-radius: 60px;
    font-size: 0.72rem; font-weight: 700;
    letter-spacing: 2px; text-transform: uppercase;
    color: var(--pink-dark);
    border: 1px solid rgba(255, 192, 203, 0.5);
}
.memory-pill {
    font-size: 0.68rem; letter-spacing: 2.5px;
    text-transform: uppercase; font-weight: 700;
    color: #f5c6d6;
    background: rgba(245, 198, 214, 0.15);
    border: 1px solid rgba(245, 198, 214, 0.35);
    padding: 0.4rem 1.2rem; border-radius: 50px;
}

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

.section-title {
    font-family: 'Fraunces', serif;
    font-size: clamp(1.8rem, 6vw, 2.6rem);
    font-weight: 400; line-height: 1.2;
    color: var(--text-dark);
}
.section-sub {
    font-size: clamp(1.1rem, 3.5vw, 1.4rem);
    color: var(--text-light);
}

.next-btn {
    display: inline-flex; align-items: center; gap: 0.6rem;
    background: linear-gradient(135deg, var(--pink-deep), var(--pink-dark));
    color: white; border: none; border-radius: 50px;
    padding: 0.9rem 2rem;
    font-family: 'Quicksand', sans-serif;
    font-size: 0.95rem; font-weight: 700;
    cursor: pointer; letter-spacing: 0.5px;
    transition: transform 0.2s, box-shadow 0.2s;
    box-shadow: 0 6px 20px rgba(202,120,155,0.35);
    margin-top: 0.5rem;
}
.next-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(202,120,155,0.45);
}
.next-dark {
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    box-shadow: none;
    color: rgba(255,255,255,0.9);
}
.next-dark:hover {
    background: rgba(245,198,214,0.15);
    box-shadow: 0 6px 20px rgba(245,198,214,0.15);
}
.btn-arrow {
    display: inline-block; transition: transform 0.2s;
}
.next-btn:hover .btn-arrow { transform: translateX(4px); }

/* ══════════════════════════════════════
   SECTION 0: FRIENDSHIP BAND
══════════════════════════════════════ */
.hero-title {
    font-family: 'Fraunces', serif;
    font-size: clamp(2.2rem, 7vw, 3.6rem);
    font-weight: 400; line-height: 1.1;
    background: linear-gradient(135deg, var(--pink-deep), var(--lavender-deep));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-sub {
    font-size: clamp(1.1rem, 3.5vw, 1.5rem);
    color: var(--text-light);
}

.band-wrap {
    padding: 1.5rem 0;
    animation: bandFloat 3s ease-in-out infinite alternate;
}
@keyframes bandFloat {
    0%   { transform: translateY(0) rotate(-2deg); }
    100% { transform: translateY(-8px) rotate(2deg); }
}

.band {
    position: relative;
    display: flex; align-items: center; justify-content: center;
    padding: 0.8rem 0;
}
.band-beads {
    display: flex; gap: 6px;
    position: relative; z-index: 2;
}
.bead {
    width: 38px; height: 38px;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 0.9rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}
.bead:nth-child(odd) { animation: beadBounce 2s ease-in-out infinite; }
.bead:nth-child(even) { animation: beadBounce 2s ease-in-out 0.3s infinite; }
@keyframes beadBounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-4px); }
}
.bead-letter {
    background: linear-gradient(135deg, #fff, var(--pink-soft));
    color: var(--pink-dark);
    border: 2px solid var(--pink-mid);
    font-family: 'Fraunces', serif;
}
.bead-heart {
    background: linear-gradient(135deg, var(--pink-mid), var(--lavender));
    color: white; font-size: 1rem;
    border: 2px solid rgba(255,255,255,0.5);
}
.band-thread {
    position: absolute; top: 50%; left: -10px; right: -10px;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--pink-mid), var(--lavender-deep), var(--pink-mid), transparent);
    border-radius: 3px;
    z-index: 1;
}

/* ══════════════════════════════════════
   SECTION 1: FLASHBACK
══════════════════════════════════════ */
.flashback-date {
    display: flex; flex-direction: column;
    align-items: center; gap: 0.2rem;
}
.fb-day {
    font-family: 'Fraunces', serif;
    font-size: clamp(3.5rem, 12vw, 5.5rem);
    font-weight: 300; color: white; line-height: 1;
}
.fb-year {
    font-size: 0.9rem; color: rgba(255,255,255,0.5);
    letter-spacing: 4px; font-weight: 600;
}

.flashback-text { display: flex; flex-direction: column; gap: 0.5rem; }
.fb-line {
    font-family: 'Caveat', cursive;
    font-size: clamp(1.5rem, 5vw, 2.2rem);
    color: rgba(255,255,255,0.7); line-height: 1.3;
    opacity: 0; transform: translateY(12px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}
.fb-line.visible { opacity: 1; transform: translateY(0); }
.fb-highlight { color: var(--pink-mid); font-weight: 600; }

.flashback-counter {
    display: flex; flex-direction: column;
    align-items: center; gap: 0.3rem;
    margin-top: 1rem;
}
.fc-number {
    font-family: 'Fraunces', serif;
    font-size: clamp(3rem, 10vw, 4.5rem);
    color: white; font-weight: 300;
    font-variant-numeric: tabular-nums;
}
.fc-label {
    font-size: 0.85rem; color: rgba(255,255,255,0.5);
    font-weight: 600; letter-spacing: 0.5px;
}

/* ══════════════════════════════════════
   SECTION 2: STATS GRID
══════════════════════════════════════ */
.stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.8rem;
    width: 100%;
}
.stat-card {
    padding: 1.2rem 0.8rem;
    display: flex; flex-direction: column;
    align-items: center; gap: 0.3rem;
    opacity: 0; transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}
.stat-card.revealed { opacity: 1; transform: translateY(0); }
.stat-icon { font-size: 1.4rem; }
.stat-val {
    font-family: 'Fraunces', serif;
    font-size: clamp(1.8rem, 6vw, 2.4rem);
    color: var(--text-dark); font-weight: 400;
    font-variant-numeric: tabular-nums;
}
.stat-lbl {
    font-size: 0.72rem; color: var(--text-light);
    text-transform: uppercase; letter-spacing: 1.2px;
    font-weight: 700; line-height: 1.4;
}
.stat-note {
    font-style: italic; font-size: 0.62rem;
    color: var(--pink-deep); text-transform: none;
    letter-spacing: 0; font-weight: 500;
}

/* ══════════════════════════════════════
   SECTION 3: GROWTH CHART
══════════════════════════════════════ */
.growth-chart {
    width: 100%; padding: 1.5rem;
    margin: 0.5rem 0;
}
.growth-bar-wrap {
    display: flex; align-items: flex-end;
    gap: clamp(1rem, 4vw, 2rem);
    height: 200px;
    justify-content: center;
    padding-bottom: 2rem;
    position: relative;
}
.growth-line {
    position: absolute; bottom: 28px; left: 1.5rem; right: 1.5rem;
    height: 1px;
    background: rgba(202,120,155,0.2);
}
.growth-bar {
    display: flex; flex-direction: column;
    align-items: center; gap: 0.4rem;
    width: clamp(40px, 12vw, 65px);
    position: relative;
}
.growth-fill {
    width: 100%;
    border-radius: 12px 12px 4px 4px;
    background: linear-gradient(180deg, var(--pink-deep), var(--lavender-deep));
    height: 0;
    transition: height 1.2s cubic-bezier(0.34, 1.56, 0.64, 1);
    min-height: 8px;
}
.growth-aug {
    background: linear-gradient(180deg, rgba(202,120,155,0.4), rgba(196,166,227,0.3));
    border: 1px dashed rgba(202,120,155,0.4);
}
.growth-val {
    font-family: 'Fraunces', serif;
    font-size: clamp(0.7rem, 2.5vw, 0.9rem);
    color: var(--text-dark); font-weight: 400;
    white-space: nowrap;
}
.growth-month {
    font-size: 0.7rem; color: var(--text-light);
    font-weight: 700; text-transform: uppercase;
    letter-spacing: 1px;
}
.growth-caption {
    font-size: clamp(1.1rem, 3.5vw, 1.3rem);
    color: var(--text-light);
}

/* ══════════════════════════════════════
   SECTION 4: REASON CARDS (FLIP)
══════════════════════════════════════ */
.reasons-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.8rem; width: 100%;
}
.reason-card {
    perspective: 600px;
    height: 140px; cursor: pointer;
    border: none; background: none;
    position: relative;
}
.reason-front, .reason-back {
    position: absolute; inset: 0;
    border-radius: 20px;
    display: flex; align-items: center; justify-content: center;
    backface-visibility: hidden;
    transition: transform 0.6s ease;
    padding: 1rem;
}
.reason-front {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    font-size: 2rem;
}
.reason-back {
    background: linear-gradient(135deg, var(--pink-deep), var(--lavender-deep));
    color: white;
    font-family: 'Caveat', cursive;
    font-size: clamp(0.95rem, 3vw, 1.15rem);
    line-height: 1.3;
    transform: rotateY(180deg);
    border: 1px solid rgba(255,255,255,0.2);
}
.reason-card.flipped .reason-front { transform: rotateY(180deg); }
.reason-card.flipped .reason-back { transform: rotateY(0deg); }

/* ══════════════════════════════════════
   SECTION 5: MOOD BOOST
══════════════════════════════════════ */
#sec-5 .section-title {
    color: white; font-size: clamp(1.6rem, 5.5vw, 2.2rem);
}
#sec-5 .section-sub { color: rgba(255,255,255,0.5); }

.boost-list {
    display: flex; flex-direction: column; gap: 1rem;
    width: 100%; text-align: left;
}
.boost-item {
    display: flex; gap: 1rem; align-items: flex-start;
    padding: 1rem 1.2rem;
    border-radius: 16px;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.1);
    opacity: 0; transform: translateX(-15px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.boost-item.visible { opacity: 1; transform: translateX(0); }
.boost-num {
    font-family: 'Fraunces', serif;
    font-size: 1.4rem; color: var(--pink-mid);
    font-weight: 300; flex-shrink: 0;
    line-height: 1.5;
}
.boost-item p {
    font-size: 0.9rem; color: rgba(255,255,255,0.78);
    line-height: 1.6;
}
.boost-item em {
    color: var(--pink-mid); font-style: italic;
}

/* ══════════════════════════════════════
   SECTION 6: CLOSING
══════════════════════════════════════ */
.closing-band-wrap {
    padding: 1rem 0;
}
.closing-band {
    font-size: 3.5rem;
    animation: bandPulse 2s ease-in-out infinite;
}
@keyframes bandPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.15) rotate(5deg); }
}

.closing-title {
    font-family: 'Fraunces', serif;
    font-size: clamp(1.8rem, 6vw, 2.6rem);
    font-weight: 400; line-height: 1.2;
}
.closing-name {
    font-size: clamp(2.5rem, 8vw, 3.5rem);
    background: linear-gradient(135deg, var(--pink-deep), var(--lavender-deep));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.closing-body {
    font-size: 0.95rem; color: var(--text-mid);
    line-height: 1.6; max-width: 380px;
}

.closing-timer {
    display: flex; gap: 0.6rem;
}
.timer-chip {
    background: var(--glass-bg);
    backdrop-filter: blur(15px);
    border: 1px solid var(--glass-border);
    border-radius: 14px;
    padding: 0.8rem 0.6rem;
    display: flex; flex-direction: column;
    align-items: center; gap: 2px;
    min-width: 55px;
}
.tv {
    font-family: 'Fraunces', serif;
    font-size: clamp(1.3rem, 4vw, 1.8rem);
    color: var(--text-dark); font-weight: 400;
    font-variant-numeric: tabular-nums;
}
.tl {
    font-size: 0.55rem; text-transform: uppercase;
    letter-spacing: 1.5px; color: var(--text-light);
    font-weight: 700;
}
.timer-label {
    font-size: 1rem; color: var(--text-light);
}
.closing-final {
    font-size: clamp(1.3rem, 4vw, 1.8rem);
    color: var(--pink-deep);
    margin-top: 0.5rem;
}

/* ══════ CONFETTI ══════ */
#confetti-container {
    position: fixed; inset: 0;
    pointer-events: none; z-index: 100;
    overflow: hidden;
}
.confetti-piece {
    position: absolute; top: -10px;
    width: 8px; height: 14px;
    border-radius: 2px;
    animation: confettiFall linear forwards;
}
@keyframes confettiFall {
    0%   { opacity: 1; transform: translateY(0) rotate(0deg); }
    100% { opacity: 0; transform: translateY(100vh) rotate(720deg); }
}

/* ══════ SPARKLE CURSOR ══════ */
.sparkle {
    position: fixed; pointer-events: none;
    font-size: 13px; z-index: 9999;
    animation: sparkleFade 0.8s ease-out forwards;
}
@keyframes sparkleFade {
    0%   { opacity: 1; transform: translateY(0) scale(1); }
    100% { opacity: 0; transform: translateY(-22px) scale(0); }
}

/* ══════ RESPONSIVE ══════ */
@media (max-width: 480px) {
    .bead { width: 34px; height: 34px; font-size: 0.8rem; }
    .stats-grid { gap: 0.6rem; }
    .stat-card { padding: 1rem 0.6rem; }
    .reason-card { height: 120px; }
    .reason-back { font-size: 0.88rem; padding: 0.7rem; }
    .timer-chip { min-width: 48px; padding: 0.6rem 0.4rem; }
    .boost-item { padding: 0.8rem 1rem; }
}