/* story.css - Specific to the Mon Histoire 12-step page */

body.story-page {
    --bg-dark: #000000;
    --acc-green: #39ff14;
    --text-light: #ffffff;
    --font-main: 'Inter', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-light);
    font-family: var(--font-main);
    overflow-x: hidden;
    margin: 0;
    padding: 0;
}

/* === UNIVERSAL PIN SYSTEM INITIAL STATES === */
/* GSAP will animate these in and out */
.story-bg {
    opacity: 0;
    transform: scale(1.08) translateZ(0);
}
.story-text-el {
    opacity: 0;
    /* No transform on Y here — GSAP will set it from y:60 → y:0 using 'y' not transform */
    position: absolute;
    z-index: 10;
    padding: 0 2rem;
    text-align: center;
    text-shadow: 0 2px 12px rgba(0,0,0,0.8);
    width: 100%;
    /* Isolate text from GPU layer to prevent subpixel blur */
    transform: translateZ(0);
    backface-visibility: hidden;
    -webkit-font-smoothing: antialiased;
}

/* Framed Background Images (non-fullscreen) */
.story-bg.bg-image {
    /* Override the absolute fullscreen default with a centered card */
    width: 72vw;
    height: 72vh;
    top: 50%;
    left: 50%;
    transform: translateZ(0) scale(1.08); /* translate(-50%, -50%) handled strictly by GSAP to avoid double shifting */
    border-radius: 20px;
    box-shadow: 0 30px 80px rgba(0,0,0,0.7);
    background-attachment: local;
}
/* Keep fullscreen override for S11 and S12 */
.story-bg.bg-image.fullscreen {
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    transform: translateZ(0) scale(1.08);
    border-radius: 0;
    box-shadow: none;
}

body.story-page nav.nav {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 9999;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(10px);
}

body.story-page h1, body.story-page h2 {
    font-family: 'Inter', sans-serif;
    font-weight: 900;
    letter-spacing: -0.02em;
    line-height: 1.1;
    font-size: clamp(2rem, 5vw, 5rem);
    text-align: center;
    z-index: 10;
    position: relative;
    max-width: 80%;
    margin: 0 auto;
    color: #fff;
}

/* Basic Layout & Panels */
.panel {
    position: relative;
    width: 100vw;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    background: #000000;
}

/* GPU Hardware Acceleration — only on background elements, NOT text (avoids subpixel blur) */
.bg-grid, .computer-half, .nature-half, .progress-bar, .bg-parallax, .bg-blur-spufad, .bg-mask, .bg-neon-flashes, .bg-video-full, .bg-image, .bg-wipe-container, .parallax-wrap, .story-bg {
    will-change: transform, opacity;
    transform: translateZ(0);
}

.content {
    position: relative;
    z-index: 10;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
}

.bg-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    z-index: 1;
}

/* Framed / Floating Aesthetic Logic */
.bg-image.framed, .bg-wipe-container.framed, .parallax-wrap.framed {
    top: 50%;
    left: 50%;
    width: 75vw;
    height: 75vh;
    border-radius: 24px;
    box-shadow: 0 30px 60px rgba(0,0,0,0.8);
    /* GSAP will set xPercent: -50, yPercent: -50 for centering */
}

/* Fullscreen intent */
.bg-image.fullscreen, .bg-video-full.fullscreen {
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    border-radius: 0;
    box-shadow: none;
}

/* Section 1 : L'Origine */
.bg-grid {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background-size: 50px 50px;
    background-image: 
      linear-gradient(to right, rgba(255,255,255,0.05) 1px, transparent 1px),
      linear-gradient(to bottom, rgba(255,255,255,0.05) 1px, transparent 1px);
    z-index: 1;
    opacity: 0;
}
.fade-text {
    opacity: 0;
    color: #fff;
    text-shadow: 0 4px 20px rgba(0,0,0,0.5);
}

/* Section 2 : Le Dual-Core */
.bg-wipe-container {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    z-index: 1;
    display: flex;
    overflow: hidden; /* Important for clip paths to respect frame */
}
.bg-half {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    background-size: cover;
    background-position: center;
}
.nature-half {
    z-index: 1;
    filter: brightness(0.7);
}
.computer-half {
    z-index: 2;
    filter: sepia(0.8) hue-rotate(90deg) contrast(1.2);
    clip-path: inset(0 0 0 0);
}
.slide-out-text {
    opacity: 0;
}

/* Section 3 : L'Endurance */
.progress-bar-container {
    position: absolute;
    top: 50%; left: 0; width: 100%; height: 4px;
    background: rgba(255,255,255,0.1);
    z-index: 5;
    transform: translateY(-50%);
}
.progress-bar {
    width: 100%; /* Hardware accelerated scaling vs width animating */
    height: 100%;
    background: #fff;
    transform: scaleX(0);
    transform-origin: left;
}
.zoom-in-text {
    transform: scale(0.5);
    opacity: 0;
}
.bg-marathon {
    filter: brightness(0.4);
}

/* Section 3.5 : La Fierté */
.bg-podium {
    /* Set initial blur for the universal fade-in. Wait, the GSAP custom timeline will set it anyway, but putting it here prevents FOUC */
    filter: blur(35px) brightness(0.4);
}
.circle-rouge {
    position: absolute;
    width: clamp(140px, 16vw, 200px);
    aspect-ratio: 1/1;
    border: 6px solid #ff0033;
    border-radius: 50%;
    top: 43%;
    left: 65%;
    transform: translate(-50%, -50%) scale(0);
    opacity: 0;
    z-index: 20;
    pointer-events: none;
    will-change: transform, opacity;
}

/* Section 4 : La Route (Parallaxe) */
.parallax-wrap {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    overflow: hidden;
    z-index: 1;
}
.bg-parallax {
    height: 120%;
    top: -10%;
    filter: grayscale(100%) contrast(1.2) brightness(0.5);
}
.blur-text {
    filter: blur(20px);
    opacity: 0;
}

/* Section 5 : La Technique */
.typing-text {
    font-family: 'Courier New', Courier, monospace;
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.4);
    min-height: 3em; 
}
.bg-nodes {
    background-size: cover;
    filter: brightness(0.2) contrast(1.5);
    opacity: 0.2;
}

/* Section 6 : Le SPUFAD */
.bg-blur-spufad {
    filter: blur(30px) brightness(0.4);
}
.tilt-text-container {
    perspective: 1000px;
}
.tilt-text {
    transform: rotateY(30deg) rotateX(10deg);
    opacity: 0;
}

/* Section 7 : L'Innovation */
.bg-video, .bg-video-full {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    min-width: 100%; min-height: 100%;
    z-index: 1;
    object-fit: cover;
    opacity: 0.4;
}
.split-text {
    display: flex;
    justify-content: center;
}
body.story-page .story-title-container {
    width: 100%;
    text-align: center;
    position: relative;
    z-index: 10;
    padding: 0 2rem;
    pointer-events: none; /* Let clicks pass through to interactive bgs */
}
body.story-page .story-subtitle {
    font-family: 'Outfit', sans-serif;
    font-size: clamp(1.2rem, 2.5vw, 2.2rem);
    font-weight: 500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.85);
    text-shadow: 0 4px 20px rgba(0,0,0,0.9);
}
body.story-page .story-main-title {
    font-family: 'Inter', sans-serif;
    font-size: clamp(3.5rem, 8vw, 8rem);
    font-weight: 900;
    letter-spacing: -0.04em;
    color: #fff;
    text-shadow: 0 10px 40px rgba(0,0,0,0.9);
    display: inline-block;
    margin-top: 0.05em;
    line-height: 0.95;
}

/* Section 8 : Le Regard */
.film-grain {
    position: absolute;
    top: -50%; left: -50%; width: 200%; height: 200%;
    background-image: url('data:image/svg+xml,%3Csvg viewBox="0 0 200 200" xmlns="http://www.w3.org/2000/svg"%3E%3Cfilter id="noiseFilter"%3E%3CfeTurbulence type="fractalNoise" baseFrequency="0.65" numOctaves="3" stitchTiles="stitch"/%3E%3C/filter%3E%3Crect width="100%25" height="100%25" filter="url(%23noiseFilter)"/%3E%3C/svg%3E');
    opacity: 0.08;
    z-index: 3;
    animation: grain 0.5s steps(2) infinite;
    pointer-events: none;
}
@keyframes grain {
    0%, 100% { transform: translate(0, 0); }
    10% { transform: translate(-2%, -2%); }
    30% { transform: translate(1%, -2%); }
    50% { transform: translate(-1%, 2%); }
    70% { transform: translate(2%, 1%); }
    90% { transform: translate(-1%, 1%); }
}
.bg-mask {
    /* No initial clip-path here — GSAP ScrollTrigger animates circle size on scroll */
    z-index: 2;
    filter: brightness(0.6);
}

/* Section 9 : L'Implication */
.bg-empty-room {
    filter: brightness(0.4);
}

/* Section 10 : La Diffusion */
.stagger-text {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.3em;
}
.stagger-word {
    opacity: 0;
}
.bg-neon-flashes {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: radial-gradient(circle at 50% 50%, rgba(255, 0, 150, 0.4), transparent 70%);
    opacity: 0;
    z-index: 2;
    mix-blend-mode: screen;
}
.bg-nuit {
    filter: brightness(0.6);
}

/* Section 11 : L'Aboutissement */
.scale-text {
    transform: scale(0.1);
    opacity: 0;
}
.text-shadow-dark {
    text-shadow: 0 5px 30px rgba(0,0,0,0.9);
}

/* Section 12 : Le Rôle */
.pinning-panel {
    height: 100vh;
    display: block;
}
.pinning-content {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 10;
}
.sticky-text {
    font-size: clamp(3rem, 8vw, 8rem);
    text-shadow: 0 2px 20px rgba(0,0,0,0.8);
}

/* Accessibility: Reduced Motion Override */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}