/* ═══════════════════════════════════════════════════════════════
   Page Verticale — Scroll Animation System v1.0
   Requires: /assets/js/scroll.js
   ─ No JS framework · ~3KB · Performance-first
═══════════════════════════════════════════════════════════════ */

/* ── Scroll Progress Bar ───────────────────────────────────── */
#pv-scroll-progress {
    position: fixed;
    top: 0; left: 0;
    height: 3px;
    background: linear-gradient(90deg, #e23c52 0%, #ff8a65 60%, #e23c52 100%);
    background-size: 200% 100%;
    animation: progressShimmer 2s linear infinite;
    z-index: 9999;
    width: 0%;
    pointer-events: none;
    border-radius: 0 2px 2px 0;
    transition: width 0.1s linear;
}
@keyframes progressShimmer {
    0%   { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* ── Base Reveal ───────────────────────────────────────────── */
.reveal,
.reveal-up,
.reveal-left,
.reveal-right,
.reveal-zoom,
.reveal-fade {
    opacity: 0;
    transition:
        opacity  0.75s cubic-bezier(0.4, 0, 0.2, 1),
        transform 0.75s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: opacity, transform;
}

.reveal,
.reveal-up   { transform: translateY(40px); }
.reveal-left { transform: translateX(-48px); }
.reveal-right{ transform: translateX(48px); }
.reveal-zoom { transform: scale(0.88) translateY(24px); }
.reveal-fade { transform: translateY(0); }

/* Visible state */
.reveal.visible,
.reveal-up.visible,
.reveal-left.visible,
.reveal-right.visible,
.reveal-zoom.visible,
.reveal-fade.visible {
    opacity: 1;
    transform: none;
}

/* ── Section enter ─────────────────────────────────────────── */
.section-enter {
    opacity: 0;
    transform: translateY(24px);
    transition:
        opacity  0.9s cubic-bezier(0.4, 0, 0.2, 1),
        transform 0.9s cubic-bezier(0.4, 0, 0.2, 1);
}
.section-enter.visible { opacity: 1; transform: none; }

/* ── Delay helpers ─────────────────────────────────────────── */
.reveal-d1, .reveal-up.reveal-d1, .reveal-left.reveal-d1,
.reveal-right.reveal-d1, .reveal-zoom.reveal-d1              { transition-delay: 80ms;  }
.reveal-d2, .reveal-up.reveal-d2, .reveal-left.reveal-d2,
.reveal-right.reveal-d2, .reveal-zoom.reveal-d2              { transition-delay: 160ms; }
.reveal-d3, .reveal-up.reveal-d3, .reveal-left.reveal-d3,
.reveal-right.reveal-d3, .reveal-zoom.reveal-d3              { transition-delay: 240ms; }
.reveal-d4, .reveal-up.reveal-d4, .reveal-left.reveal-d4,
.reveal-right.reveal-d4, .reveal-zoom.reveal-d4              { transition-delay: 320ms; }
.reveal-d5, .reveal-up.reveal-d5, .reveal-left.reveal-d5,
.reveal-right.reveal-d5, .reveal-zoom.reveal-d5              { transition-delay: 400ms; }
.reveal-d6, .reveal-up.reveal-d6, .reveal-left.reveal-d6,
.reveal-right.reveal-d6, .reveal-zoom.reveal-d6              { transition-delay: 500ms; }

/* ── Stagger container ─────────────────────────────────────── */
.stagger > * {
    opacity: 0;
    transform: translateY(32px);
    transition:
        opacity  0.6s cubic-bezier(0.4, 0, 0.2, 1),
        transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: opacity, transform;
}
.stagger.visible > * { opacity: 1; transform: none; }

/* Stagger delays — nth child */
.stagger.visible > *:nth-child(1)    { transition-delay:   0ms; }
.stagger.visible > *:nth-child(2)    { transition-delay:  80ms; }
.stagger.visible > *:nth-child(3)    { transition-delay: 160ms; }
.stagger.visible > *:nth-child(4)    { transition-delay: 240ms; }
.stagger.visible > *:nth-child(5)    { transition-delay: 320ms; }
.stagger.visible > *:nth-child(6)    { transition-delay: 400ms; }
.stagger.visible > *:nth-child(7)    { transition-delay: 480ms; }
.stagger.visible > *:nth-child(8)    { transition-delay: 560ms; }
.stagger.visible > *:nth-child(9)    { transition-delay: 640ms; }
.stagger.visible > *:nth-child(10)   { transition-delay: 720ms; }
.stagger.visible > *:nth-child(n+11) { transition-delay: 800ms; }

/* ── Hover lift (interactive cards) ───────────────────────── */
.hover-lift {
    transition:
        transform   0.25s cubic-bezier(0.4, 0, 0.2, 1),
        box-shadow  0.25s ease !important;
}
.hover-lift:hover {
    transform: translateY(-5px) !important;
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.14) !important;
}

/* ── Line draw ─────────────────────────────────────────────── */
.line-draw {
    transform-origin: left center;
    transform: scaleX(0);
    transition: transform 0.9s cubic-bezier(0.4, 0, 0.2, 1);
}
.line-draw.visible { transform: scaleX(1); }

/* ── Orbit Button (rotating circle CTA) ───────────────────── */
.orbit-btn {
    background: none;
    border: 0;
    cursor: pointer;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
}
.orbit-btn svg {
    width: 100%;
    height: auto;
    display: block;
    overflow: visible;
}
.orbit-fill {
    transition: fill 0.5s ease, stroke 0.5s ease;
}
.orbit-ring {
    transform-origin: 40px 40px;
    transition: transform 2s cubic-bezier(0.620, 0.005, 0.000, 1.005);
}
.orbit-btn:hover .orbit-fill { fill: #e23c52; }
.orbit-btn:hover .orbit-ring { transform: rotate(360deg); }

/* ── Parallax wrapper ──────────────────────────────────────── */
[data-parallax] { will-change: transform; }

/* ── Respect prefers-reduced-motion ───────────────────────── */
@media (prefers-reduced-motion: reduce) {
    .reveal, .reveal-up, .reveal-left, .reveal-right,
    .reveal-zoom, .reveal-fade, .section-enter,
    .stagger > *, .line-draw,
    [data-parallax] {
        transition: none !important;
        animation:  none !important;
        transform:  none !important;
        opacity: 1  !important;
    }
    #pv-scroll-progress { display: none !important; }
    .hover-lift { transition: none !important; }
}