/* ===== SafiVolt — Scroll-Driven Canvas Section ===== */

/* Section: 5 cards = 5 viewport-heights of scroll */
.scroll-section {
    position: relative;
    height: 500vh;
    background: #000;
}

/* Sticky viewport */
.scroll-sticky {
    position: sticky;
    top: 0;
    height: 100vh;
    overflow: hidden;
}

/* Canvas fills the sticky viewport */
#scrollCanvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

/* Left gradient so cards are readable */
.scroll-gradient {
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(0,0,0,0.8) 0%, rgba(0,0,0,0.4) 35%, transparent 60%);
    z-index: 2;
    pointer-events: none;
}

/* All cards stacked in same position — only one visible at a time */
.scroll-cards {
    position: absolute;
    inset: 0;
    z-index: 3;
    pointer-events: none;
}
.scroll-card {
    position: absolute;
    top: 50%;
    left: 6%;
    width: 420px;
    transform: translateY(-50%);
}
.scroll-card-content {
    background: rgba(10, 10, 18, 0.92);
    border: 1px solid rgba(0, 230, 118, 0.12);
    border-radius: 20px;
    padding: 2.5rem;
    backdrop-filter: blur(20px);
    pointer-events: auto;
    opacity: 0;
    transform: translateY(40px) scale(0.96);
    transition: opacity 0.5s ease, transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}
.scroll-card-content.visible {
    opacity: 1;
    transform: translateY(0) scale(1);
    border-color: rgba(0, 230, 118, 0.45);
    box-shadow: 0 0 60px rgba(0, 230, 118, 0.08), 0 20px 60px rgba(0,0,0,0.4);
}
.scroll-card-number {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 2px;
    color: #00e676;
    margin-bottom: 1rem;
    padding: 0.4rem 1rem;
    background: rgba(0, 230, 118, 0.1);
    border: 1px solid rgba(0, 230, 118, 0.25);
    border-radius: 50px;
}
.scroll-card-content h3 {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
}
.scroll-card-content p {
    font-size: 0.95rem;
    color: #aaa;
    line-height: 1.7;
}
.scroll-card-content .card-value {
    font-size: 2rem;
    font-weight: 900;
    background: linear-gradient(135deg, #00d4ff, #00ff88);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.3rem;
}

/* Right-side dots */
.scroll-indicators {
    position: absolute;
    right: 2rem;
    top: 50%;
    transform: translateY(-50%);
    z-index: 4;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}
.scroll-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255,255,255,0.15);
    transition: all 0.3s;
}
.scroll-dot.active {
    background: #00e676;
    box-shadow: 0 0 10px rgba(0,230,118,0.4);
}

/* Progress bar */
.scroll-progress-bar {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    width: 180px;
    height: 3px;
    background: rgba(255,255,255,0.08);
    border-radius: 2px;
    z-index: 4;
    overflow: hidden;
}
.scroll-progress-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, #00d4ff, #00ff88);
    border-radius: 2px;
}

/* --- 3D Scroll Animation States (car cards below) --- */
.scroll-3d-hidden {
    opacity: 0;
    transform: perspective(1000px) rotateX(12deg) translateY(50px) translateZ(-30px);
    transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.6s ease;
}
.scroll-3d-visible {
    opacity: 1;
    transform: perspective(1000px) rotateX(0deg) translateY(0) translateZ(0);
}

/* --- Card Tilt --- */
.card-tilt { transform-style: preserve-3d; will-change: transform; }
.card-tilt-glare {
    position: absolute; inset: 0; border-radius: inherit;
    background: radial-gradient(circle at var(--glare-x,50%) var(--glare-y,50%), rgba(0,255,136,0.08) 0%, transparent 60%);
    pointer-events: none; z-index: 5; opacity: 0; transition: opacity 0.3s;
}
.card-tilt:hover .card-tilt-glare { opacity: 1; }

/* --- Mobile --- */
@media (max-width: 768px) {
    .scroll-card { left: 1rem; right: 3rem; width: auto; top: auto; bottom: 4rem; transform: none; }
    .scroll-card-content { padding: 1.5rem; }
    .scroll-card-content h3 { font-size: 1.2rem; }
    .scroll-card-content .card-value { font-size: 1.5rem; }
    .scroll-indicators { right: 0.5rem; }
    .scroll-gradient { background: linear-gradient(180deg, rgba(0,0,0,0.3) 0%, rgba(0,0,0,0.7) 100%); }
}

/* --- Reduced Motion --- */
@media (prefers-reduced-motion: reduce) {
    .scroll-3d-hidden { opacity: 1; transform: none; transition: none; }
    .card-tilt { transform: none !important; }
    .scroll-card-content { opacity: 1; transform: none; }
}