User wanted a more deliberate descent. Bumps the transform transition from 1.2 s to 2.2 s and the opacity transition from 0.5 s to 0.9 s. Easing kept (slight overshoot spring). Halo delay (1 s) unchanged so it kicks in mid-emerge while the button is still settling. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
231 lines
6.4 KiB
CSS
231 lines
6.4 KiB
CSS
/* =========================================================================
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PARALLAX INTRO — MVA Global Fret
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Page unique. Photo aérienne d'Antananarivo en fond + avion 3D piloté
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par la souris (entre par le haut-gauche, sort par la droite). Bouton
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CTA doré centré, toujours visible.
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========================================================================= */
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:root {
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--navy: #1a1a3e;
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--navy-deep: #050518;
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--gold: #c5a55a;
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--gold-light: #e0c98a;
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--red: #ff2a3d;
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--white: #fff;
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--mx: 0;
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--my: 0;
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}
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* { box-sizing: border-box; margin: 0; padding: 0; }
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html, body {
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height: 100%;
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background: var(--navy-deep);
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}
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.parallax-body {
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font-family: 'Inter', sans-serif;
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color: var(--white);
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overflow: hidden;
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}
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/* ── HEADER ─────────────────────────────────────────────────────────────── */
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.parallax-header {
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position: fixed;
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top: 0; left: 0; right: 0;
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display: flex;
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align-items: center;
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justify-content: space-between;
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padding: 22px 36px;
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z-index: 100;
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}
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.parallax-logo {
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display: inline-flex;
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align-items: center;
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gap: 12px;
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color: var(--white);
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font-family: 'Poppins', sans-serif;
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font-weight: 700;
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letter-spacing: 1.2px;
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font-size: 0.92rem;
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text-transform: uppercase;
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user-select: none;
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}
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.parallax-logo img {
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height: 44px;
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width: auto;
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filter: drop-shadow(0 4px 14px rgba(0, 0, 0, 0.65));
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}
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.lang-switcher {
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display: inline-flex;
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background: rgba(255, 255, 255, 0.08);
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border: 1px solid rgba(255, 255, 255, 0.18);
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border-radius: 50px;
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padding: 4px;
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backdrop-filter: blur(10px);
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-webkit-backdrop-filter: blur(10px);
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}
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.lang-switcher button {
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background: transparent;
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border: none;
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color: rgba(255, 255, 255, 0.7);
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padding: 6px 14px;
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cursor: pointer;
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border-radius: 50px;
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font-weight: 600;
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font-size: 0.78rem;
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font-family: inherit;
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transition: all 0.2s;
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}
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.lang-switcher button.active {
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background: var(--gold);
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color: var(--navy);
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}
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.lang-switcher button:hover:not(.active) { color: var(--white); }
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/* ── STAGE ──────────────────────────────────────────────────────────────── */
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.stage {
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position: relative;
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width: 100vw;
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height: 100vh;
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overflow: hidden;
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}
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.layer {
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position: absolute;
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inset: 0;
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width: 100%;
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height: 100%;
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pointer-events: none;
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will-change: transform;
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}
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/* Photo de fond — léger zoom + parallaxe souris discrète */
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.layer-bg {
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object-fit: cover;
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object-position: center;
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transform: translate(calc(var(--mx) * -16px), calc(var(--my) * -10px)) scale(1.05);
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}
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.layer-tint {
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background:
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radial-gradient(ellipse at center, transparent 0%, rgba(5, 5, 24, 0.32) 100%),
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linear-gradient(180deg, transparent 55%, rgba(5, 5, 24, 0.40) 100%);
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}
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.layer-three { display: block; z-index: 2; }
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/* ── BOUTON CTA centré ────────────────────────────────────────────────────
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État caché : positionné là où l'avion est au centre de sa course
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(~27% au-dessus du centre du viewport), à scale ≈ 0. Quand le JS
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ajoute la classe `.revealed` (au moment où l'avion atteint p ≥ 0.5),
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les variables CSS basculent et le bouton « sort » de l'avion en
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grossissant jusqu'à sa taille finale au centre. */
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.cta-btn {
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--cta-y: -27vh; /* offset vertical : 0 = centré */
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--cta-scale: 0.05;
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--cta-opacity: 0;
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position: absolute;
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top: 50%;
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left: 50%;
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transform: translate(-50%, calc(-50% + var(--cta-y))) scale(var(--cta-scale));
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opacity: var(--cta-opacity);
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pointer-events: none;
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z-index: 10;
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display: inline-flex;
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align-items: center;
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gap: 16px;
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padding: 22px 56px;
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background: linear-gradient(135deg, var(--gold) 0%, var(--gold-light) 50%, var(--gold) 100%);
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color: var(--navy);
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text-decoration: none;
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border-radius: 50px;
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font-family: 'Poppins', sans-serif;
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font-weight: 700;
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font-size: 1.1rem;
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letter-spacing: 0.6px;
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overflow: hidden;
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white-space: nowrap;
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box-shadow:
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0 20px 60px rgba(197, 165, 90, 0.55),
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0 0 0 0 rgba(197, 165, 90, 0.4),
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inset 0 1px 0 rgba(255, 255, 255, 0.45);
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transition:
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transform 2.2s cubic-bezier(0.34, 1.4, 0.64, 1),
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opacity 0.9s ease 0.1s,
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box-shadow 0.32s cubic-bezier(0.2, 0.8, 0.2, 1);
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}
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.cta-btn.revealed {
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--cta-y: 0vh;
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--cta-scale: 1;
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--cta-opacity: 1;
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pointer-events: auto;
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}
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/* Hover seulement après la révélation, avec une transition rapide */
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.cta-btn.revealed:hover {
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--cta-scale: 1.04;
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transition:
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transform 0.32s cubic-bezier(0.2, 0.8, 0.2, 1),
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box-shadow 0.32s cubic-bezier(0.2, 0.8, 0.2, 1);
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box-shadow:
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0 28px 75px rgba(197, 165, 90, 0.7),
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0 0 0 12px rgba(197, 165, 90, 0.12),
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inset 0 1px 0 rgba(255, 255, 255, 0.55);
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}
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.cta-btn-shine {
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position: absolute;
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top: 0; left: -120%;
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width: 60%; height: 100%;
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background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.65), transparent);
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transform: skewX(-22deg);
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transition: left 0.7s ease;
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pointer-events: none;
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}
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.cta-btn:hover .cta-btn-shine { left: 130%; }
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.cta-btn i {
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font-size: 0.95rem;
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transition: transform 0.32s ease;
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}
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.cta-btn:hover i { transform: translateX(8px); }
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.cta-btn::after {
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content: '';
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position: absolute;
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inset: -3px;
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border-radius: 50px;
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border: 2px solid rgba(197, 165, 90, 0.55);
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animation: none; /* halo dormant tant que le bouton n'est pas révélé */
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pointer-events: none;
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}
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.cta-btn.revealed::after {
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animation: ctaPulse 2.8s ease-out 1s infinite; /* démarre après l'arrivée du bouton */
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}
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@keyframes ctaPulse {
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0% { transform: scale(1); opacity: 0.7; }
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100% { transform: scale(1.18); opacity: 0; }
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}
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/* ── RESPONSIVE ─────────────────────────────────────────────────────────── */
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@media (max-width: 768px) {
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.parallax-header { padding: 14px 18px; }
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.parallax-logo span { display: none; }
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.parallax-logo img { height: 38px; }
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.lang-switcher button { padding: 5px 10px; font-size: 0.74rem; }
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.cta-btn {
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padding: 16px 36px;
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font-size: 0.98rem;
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}
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}
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@media (prefers-reduced-motion: reduce) {
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.cta-btn::after { animation: none; }
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}
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