/* ========================================
   PASSIONS SCROLL ANIMATION
   ======================================== */

/* The scroll container: 400vh so each stage gets ~100vh */
.passions-scroll {
    position: relative;
    height: 500vh; /* 4 stages * 100vh + buffer */
}

/* Sticky viewport fills the screen */
.passions-viewport {
    position: sticky;
    top: 0;
    height: 100vh;
    overflow: hidden;
    width: 100%;
}

/* ---- BACKGROUNDS ---- */
.passions-bg {
    position: absolute; inset: 0;
    transition: opacity 0.8s ease;
}
.bg-sky {
    position: absolute; top: 0; left: 0; right: 0; height: 45%;
    background: linear-gradient(180deg, #0a0a2e 0%, #1a1a4e 100%);
    transition: background 1s ease;
}
.bg-water {
    position: absolute; top: 45%; left: 0; right: 0; bottom: 0;
    background: linear-gradient(180deg, #0c2d48 0%, #061a2e 100%);
    opacity: 0;
    transition: opacity 1s ease;
}
.bg-ground {
    position: absolute; bottom: 0; left: 0; right: 0; height: 20%;
    background: linear-gradient(180deg, #1a3a1a 0%, #0d200d 100%);
    opacity: 0;
    transition: opacity 1s ease;
}

/* Stage 0 & 1: underwater */
.passions-viewport[data-stage="0"] .bg-sky,
.passions-viewport[data-stage="1"] .bg-sky {
    background: linear-gradient(180deg, #061a2e 0%, #0c2d48 100%);
}
.passions-viewport[data-stage="0"] .bg-water,
.passions-viewport[data-stage="1"] .bg-water {
    opacity: 1;
}

/* Stage 2 & 3: ground/sky */
.passions-viewport[data-stage="2"] .bg-sky,
.passions-viewport[data-stage="3"] .bg-sky {
    background: linear-gradient(180deg, #0a0a2e 0%, #1a2a4e 60%, #2a4a2a 100%);
}
.passions-viewport[data-stage="2"] .bg-ground,
.passions-viewport[data-stage="3"] .bg-ground {
    opacity: 1;
}

/* ---- WATER LINE ---- */
.passions-viewport::after {
    content: '';
    position: absolute;
    top: 45%; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, rgba(100, 180, 255, 0.4), transparent);
    opacity: 0;
    transition: opacity 1s ease;
    z-index: 2;
}
.passions-viewport[data-stage="0"]::after,
.passions-viewport[data-stage="1"]::after {
    opacity: 1;
}

/* ---- CHARACTER ---- */
.character {
    position: absolute;
    z-index: 10;
    transition: transform 0.3s ease-out;
    will-change: transform, left, top;
    filter: drop-shadow(0 2px 8px rgba(0,0,0,0.3));
}
.character-svg {
    display: none;
    animation: characterBob 1.5s ease-in-out infinite;
}
/* Show correct costume per stage */
.passions-viewport[data-stage="0"] .char-diving {
    display: block;
}
.passions-viewport[data-stage="1"] .char-gaming {
    display: block;
}
.passions-viewport[data-stage="2"] .char-football {
    display: block;
}
.passions-viewport[data-stage="3"] .char-travel {
    display: block;
}
@keyframes characterBob {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-4px); }
}
/* Swimming animation override */
.character.swimming .character-svg {
    animation: characterSwim 1s ease-in-out infinite;
}
@keyframes characterSwim {
    0%, 100% { transform: translateY(0) rotate(-5deg); }
    50% { transform: translateY(-6px) rotate(5deg); }
}
/* Running animation */
.character.running .character-svg {
    animation: characterRun 0.4s ease-in-out infinite;
}
@keyframes characterRun {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}
/* Flying (in airplane) */
.character.flying {
    opacity: 0;
    transition: opacity 0.5s;
}

/* ---- BUBBLES ---- */
.bubble {
    position: absolute;
    width: 8px; height: 8px;
    border-radius: 50%;
    background: rgba(100, 200, 255, 0.3);
    border: 1px solid rgba(100, 200, 255, 0.5);
    opacity: 0;
    z-index: 5;
    animation: bubbleFloat 3s ease-in-out infinite;
}
.passions-viewport[data-stage="0"] .bubble,
.passions-viewport[data-stage="1"] .bubble {
    opacity: 1;
}
.bubble-1 { left: 20%; top: 55%; width: 6px; height: 6px; animation-delay: 0s; animation-duration: 2.5s; }
.bubble-2 { left: 35%; top: 65%; width: 10px; height: 10px; animation-delay: 0.5s; animation-duration: 3.5s; }
.bubble-3 { left: 50%; top: 58%; animation-delay: 1s; }
.bubble-4 { left: 65%; top: 70%; width: 5px; height: 5px; animation-delay: 1.5s; animation-duration: 2.8s; }
.bubble-5 { left: 80%; top: 60%; width: 12px; height: 12px; animation-delay: 2s; animation-duration: 4s; }

@keyframes bubbleFloat {
    0% { transform: translateY(0) scale(1); opacity: 0.6; }
    50% { transform: translateY(-30px) scale(1.1); opacity: 0.3; }
    100% { transform: translateY(-60px) scale(0.8); opacity: 0; }
}

/* ---- SPLASH ---- */
.splash {
    position: absolute;
    top: 43%; left: 50%;
    width: 60px; height: 30px;
    transform: translateX(-50%);
    opacity: 0;
    z-index: 8;
}
.splash.active {
    animation: splashAnim 0.8s ease-out forwards;
}
@keyframes splashAnim {
    0% { opacity: 0; transform: translateX(-50%) scale(0.5); }
    30% { opacity: 1; transform: translateX(-50%) scale(1.5); }
    100% { opacity: 0; transform: translateX(-50%) scale(2) translateY(-20px); }
}
.splash::before, .splash::after {
    content: '💦';
    position: absolute;
    font-size: 1.5rem;
}
.splash::before { left: 0; }
.splash::after { right: 0; animation-delay: 0.1s; }

/* ---- FOOTBALL ---- */
.football {
    position: absolute;
    bottom: 25%; left: 55%;
    width: 20px; height: 20px;
    border-radius: 50%;
    background: radial-gradient(circle at 35% 35%, #fff 0%, #ddd 50%, #aaa 100%);
    border: 1.5px solid #888;
    opacity: 0;
    z-index: 8;
    transition: opacity 0.5s, transform 0.3s;
}
.passions-viewport[data-stage="2"] .football {
    opacity: 1;
    animation: ballBounce 0.6s ease-in-out infinite;
}
@keyframes ballBounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

/* ---- RUBIK'S CUBE ---- */
.rubiks {
    position: absolute;
    bottom: 22%; left: 70%;
    width: 16px; height: 16px;
    background: linear-gradient(135deg, #e74c3c, #f39c12, #2ecc71, #3498db);
    border-radius: 2px;
    opacity: 0;
    z-index: 8;
    transition: opacity 0.5s;
}
.passions-viewport[data-stage="3"] .rubiks {
    opacity: 1;
    animation: rubiksSpin 3s linear infinite;
}
@keyframes rubiksSpin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ---- AIRPLANE ---- */
.airplane {
    position: absolute;
    top: 20%; right: 15%;
    font-size: 3rem;
    opacity: 0;
    z-index: 12;
    transition: opacity 0.5s;
    filter: drop-shadow(0 4px 12px rgba(0,0,0,0.4));
}
.passions-viewport[data-stage="3"] .airplane {
    opacity: 1;
    animation: planeFly 6s ease-in-out infinite;
}
@keyframes planeFly {
    0% { transform: translateX(0) translateY(0) rotate(-5deg); }
    25% { transform: translateX(-30px) translateY(-20px) rotate(0deg); }
    50% { transform: translateX(0) translateY(-10px) rotate(5deg); }
    75% { transform: translateX(30px) translateY(-15px) rotate(0deg); }
    100% { transform: translateX(0) translateY(0) rotate(-5deg); }
}

/* ---- JAPANESE DECORATIONS (Travel Stage) ---- */
.japan-deco {
    position: absolute;
    opacity: 0;
    z-index: 7;
    transition: opacity 0.8s ease;
}
.passions-viewport[data-stage="3"] .japan-deco {
    opacity: 1;
}
.torii {
    bottom: 22%; left: 25%;
    font-size: 2.5rem;
    animation: toriiGlow 3s ease-in-out infinite;
}
@keyframes toriiGlow {
    0%, 100% { filter: drop-shadow(0 0 5px rgba(255, 100, 100, 0.3)); }
    50% { filter: drop-shadow(0 0 15px rgba(255, 100, 100, 0.6)); }
}
.sakura-1 { top: 25%; left: 20%; font-size: 1.5rem; animation: sakuraFall 4s ease-in-out infinite; }
.sakura-2 { top: 35%; left: 35%; font-size: 1.2rem; animation: sakuraFall 5s ease-in-out infinite 0.5s; }
.sakura-3 { top: 20%; right: 30%; font-size: 1.4rem; animation: sakuraFall 4.5s ease-in-out infinite 1s; }
.sakura-4 { top: 30%; right: 20%; font-size: 1rem; animation: sakuraFall 5.5s ease-in-out infinite 1.5s; }
.fuji {
    bottom: 20%; right: 25%;
    font-size: 2rem;
    animation: fujiFloat 4s ease-in-out infinite;
}
@keyframes fujiFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}
@keyframes sakuraFall {
    0% { transform: translateY(0) rotate(0deg); opacity: 0.8; }
    50% { transform: translateY(30px) rotate(180deg); opacity: 1; }
    100% { transform: translateY(60px) rotate(360deg); opacity: 0.4; }
}

/* ---- PIXEL EFFECTS ---- */
.pixel-effects {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 6;
    opacity: 0;
    transition: opacity 0.5s;
}
.passions-viewport[data-stage="1"] .pixel-effects {
    opacity: 1;
}
.pixel {
    position: absolute;
    font-size: 1.2rem;
    color: var(--gold);
    opacity: 0.7;
}
.px-1 { top: 40%; left: 45%; animation: pixelFloat 2s ease-in-out infinite; }
.px-2 { top: 50%; left: 55%; animation: pixelFloat 2.5s ease-in-out infinite 0.3s; }
.px-3 { top: 35%; left: 60%; animation: pixelFloat 1.8s ease-in-out infinite 0.6s; }
.px-4 { top: 55%; left: 40%; animation: pixelFloat 2.2s ease-in-out infinite 0.9s; }
@keyframes pixelFloat {
    0%, 100% { transform: translateY(0) scale(1); opacity: 0.7; }
    50% { transform: translateY(-10px) scale(1.3); opacity: 1; }
}

/* ---- PASSION CARDS ---- */
.passion-card {
    position: absolute;
    right: 8%;
    width: min(380px, 40vw);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2rem;
    opacity: 0;
    transform: translateX(60px);
    transition: opacity 0.6s ease, transform 0.6s ease;
    z-index: 15;
    backdrop-filter: blur(8px);
}
.passion-card.visible {
    opacity: 1;
    transform: translateX(0);
}
.passion-card-icon {
    font-size: 2.5rem;
    margin-bottom: 0.75rem;
}
.passion-card-title {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 0.5rem;
}
.passion-card-desc {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.6;
}
/* Vertical positioning per card */
#card-diving  { top: 25%; }
#card-gaming   { top: 30%; }
#card-football { top: 25%; }
#card-travel   { top: 20%; }

/* ---- STAGE PROGRESS DOTS ---- */
.stage-progress {
    position: absolute;
    left: 2rem;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    gap: 12px;
    z-index: 20;
}
.stage-dot {
    width: 10px; height: 10px;
    border-radius: 50%;
    background: var(--border);
    transition: background 0.3s, transform 0.3s;
}
.stage-dot.active {
    background: var(--gold);
    transform: scale(1.4);
}

/* ---- MUSIC TOGGLE ---- */
.music-toggle {
    position: fixed;
    bottom: 2rem; left: 2rem;
    z-index: 1000;
    display: flex; align-items: center; gap: 8px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 30px;
    padding: 8px 16px;
    color: var(--text-muted);
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.3s;
    font-family: var(--font-body);
    backdrop-filter: blur(8px);
}
.music-toggle:hover {
    border-color: var(--gold);
    color: var(--gold);
}
.music-toggle.playing {
    border-color: var(--gold);
}
.music-toggle.playing .music-icon {
    animation: musicPulse 1s ease-in-out infinite;
}
@keyframes musicPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.2); }
}
.music-icon { font-size: 1.2rem; }
.music-label {
    transition: opacity 0.3s;
}

/* ---- MOBILE FALLBACK ---- */
@media (max-width: 768px) {
    .passions-scroll {
        height: auto;
    }
    .passions-viewport {
        position: relative;
        height: auto;
        overflow: visible;
    }
    .passions-bg,
    .passions-scenery,
    .character,
    .pixel-effects,
    .stage-progress {
        display: none;
    }
    .passion-card {
        position: relative;
        right: auto;
        width: 100%;
        max-width: 500px;
        margin: 1.5rem auto;
        opacity: 1;
        transform: none;
    }
    .music-toggle {
        bottom: 1rem; left: 1rem;
        padding: 6px 12px;
    }
    .music-label { display: none; }
}