/* ==============================
   CYBERDANCE — DA cyberpunk
   ============================== */

:root {
    --bg-primary: #05070d;
    --bg-secondary: #0b0f1a;
    --bg-elevated: #111827;
    --text-primary: #f0f4ff;
    --text-secondary: #a3b3c7;
    --text-muted: #6b7a94;
    --neon-cyan: #00f0ff;
    --neon-magenta: #ff00c8;
    --neon-violet: #8b5cf6;
    --neon-yellow: #f5ff00;
    --border-subtle: rgba(255, 255, 255, 0.08);
    --border-glow: rgba(0, 240, 255, 0.4);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Rajdhani', -apple-system, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

/* ==== Background effects ==== */
.grid-bg {
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(rgba(0, 240, 255, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 240, 255, 0.04) 1px, transparent 1px);
    background-size: 60px 60px;
    z-index: -2;
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
}

.noise {
    position: fixed;
    inset: 0;
    z-index: -1;
    opacity: 0.03;
    pointer-events: none;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

body::before {
    content: '';
    position: fixed;
    top: -20%;
    left: -10%;
    width: 60vw;
    height: 60vh;
    background: radial-gradient(circle, rgba(0, 240, 255, 0.15), transparent 60%);
    z-index: -1;
    pointer-events: none;
    filter: blur(80px);
}

body::after {
    content: '';
    position: fixed;
    bottom: -20%;
    right: -10%;
    width: 60vw;
    height: 60vh;
    background: radial-gradient(circle, rgba(255, 0, 200, 0.12), transparent 60%);
    z-index: -1;
    pointer-events: none;
    filter: blur(80px);
}

/* ==== Navbar ==== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 3rem;
    background: rgba(5, 7, 13, 0.75);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-subtle);
}

.logo {
    display: inline-flex;
    align-items: center;
    text-decoration: none;
    line-height: 0;
}

.logo img {
    height: 42px;
    width: auto;
    display: block;
    filter: drop-shadow(0 0 12px rgba(139, 92, 246, 0.35));
    transition: filter 0.25s ease, transform 0.25s ease;
}

.logo:hover img {
    filter: drop-shadow(0 0 18px rgba(0, 240, 255, 0.55));
    transform: scale(1.03);
}

@media (max-width: 768px) {
    .logo img {
        height: 34px;
    }
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    transition: color 0.2s ease;
}

.nav-links a:hover {
    color: var(--neon-cyan);
}

/* cta-nav removed */

/* ==== Hero section ==== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8rem 2rem 4rem;
    position: relative;
}

.hero-content {
    text-align: center;
    max-width: 900px;
}

.tagline {
    font-family: 'Orbitron', sans-serif;
    font-size: 0.85rem;
    color: var(--neon-cyan);
    letter-spacing: 0.4em;
    margin-bottom: 2rem;
    text-shadow: 0 0 8px rgba(0, 240, 255, 0.6);
}

.hero-title {
    font-family: 'Orbitron', sans-serif;
    font-size: clamp(3rem, 9vw, 7rem);
    font-weight: 900;
    line-height: 0.95;
    letter-spacing: 0.02em;
    margin-bottom: 2rem;
}

.hero-title-accent {
    display: block;
    background: linear-gradient(90deg, var(--neon-cyan), var(--neon-magenta));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 0 20px rgba(0, 240, 255, 0.3));
}

.glitch {
    position: relative;
    display: inline-block;
}

.glitch::before,
.glitch::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.75;
}

.glitch::before {
    color: var(--neon-cyan);
    animation: glitch-1 3s infinite linear alternate-reverse;
    clip-path: polygon(0 0, 100% 0, 100% 45%, 0 45%);
}

.glitch::after {
    color: var(--neon-magenta);
    animation: glitch-2 2.5s infinite linear alternate-reverse;
    clip-path: polygon(0 55%, 100% 55%, 100% 100%, 0 100%);
}

@keyframes glitch-1 {
    0%, 100% { transform: translate(0); }
    20% { transform: translate(-2px, 1px); }
    40% { transform: translate(-1px, -1px); }
    60% { transform: translate(1px, 2px); }
    80% { transform: translate(2px, -1px); }
}

@keyframes glitch-2 {
    0%, 100% { transform: translate(0); }
    20% { transform: translate(2px, -1px); }
    40% { transform: translate(1px, 1px); }
    60% { transform: translate(-2px, -2px); }
    80% { transform: translate(-1px, 1px); }
}

.hero-subtitle {
    font-size: clamp(1.05rem, 1.4vw, 1.25rem);
    color: var(--text-secondary);
    max-width: 640px;
    margin: 0 auto 4rem;
    line-height: 1.6;
    font-weight: 400;
}

.scroll-indicator {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-muted);
    font-family: 'Orbitron', sans-serif;
    font-size: 0.7rem;
    letter-spacing: 0.3em;
}

.scroll-line {
    width: 1px;
    height: 50px;
    background: linear-gradient(180deg, var(--neon-cyan), transparent);
    animation: scroll-pulse 2s ease-in-out infinite;
}

@keyframes scroll-pulse {
    0%, 100% { opacity: 0.3; transform: scaleY(0.6); }
    50% { opacity: 1; transform: scaleY(1); }
}

/* ==== Parcours section ==== */
.parcours-section {
    padding: 4rem 3rem 8rem;
    max-width: 1400px;
    margin: 0 auto;
}

.parcours-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.25rem;
    max-width: 560px;
    margin: 0 auto;
}

/* ==== Neon cards (simplified) ==== */
.neon-card {
    display: block;
    text-decoration: none;
    color: inherit;
    perspective: 1000px;
}

.neon-card-inner {
    position: relative;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    background:
        radial-gradient(ellipse at 50% 30%, rgba(139, 92, 246, 0.35), transparent 55%),
        radial-gradient(ellipse at 20% 80%, rgba(255, 0, 200, 0.2), transparent 60%),
        radial-gradient(ellipse at 80% 80%, rgba(0, 240, 255, 0.2), transparent 60%),
        linear-gradient(180deg, #05050f 0%, #0a0518 60%, #050208 100%);
    border: 1px solid rgba(255, 255, 255, 0.06);
    transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.4s ease, box-shadow 0.4s ease;
}

.neon-card:hover .neon-card-inner {
    transform: translateY(-8px) scale(1.01);
    border-color: rgba(255, 255, 255, 0.15);
}

.neon-card-a:hover .neon-card-inner {
    box-shadow: 0 30px 80px rgba(255, 0, 200, 0.35), 0 0 60px rgba(139, 92, 246, 0.25);
}

.neon-card-b:hover .neon-card-inner {
    box-shadow: 0 30px 80px rgba(0, 240, 255, 0.35), 0 0 60px rgba(139, 92, 246, 0.25);
}

/* Particles — light rays emanating from top */
.neon-particles {
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(2px 2px at 15% 20%, rgba(255, 0, 200, 0.9), transparent),
        radial-gradient(1px 1px at 30% 15%, rgba(139, 92, 246, 0.8), transparent),
        radial-gradient(2px 2px at 55% 10%, rgba(0, 240, 255, 0.9), transparent),
        radial-gradient(1px 1px at 75% 25%, rgba(255, 0, 200, 0.7), transparent),
        radial-gradient(2px 2px at 85% 15%, rgba(139, 92, 246, 0.9), transparent),
        radial-gradient(1px 1px at 10% 40%, rgba(0, 240, 255, 0.7), transparent),
        radial-gradient(1.5px 1.5px at 45% 35%, rgba(255, 0, 200, 0.8), transparent),
        radial-gradient(1px 1px at 90% 45%, rgba(139, 92, 246, 0.7), transparent),
        radial-gradient(2px 2px at 25% 55%, rgba(0, 240, 255, 0.6), transparent),
        radial-gradient(1px 1px at 65% 50%, rgba(255, 0, 200, 0.6), transparent);
    background-size: 100% 100%;
    opacity: 0.9;
}

.neon-particles::before,
.neon-particles::after {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    width: 200%;
    height: 100%;
    background: repeating-linear-gradient(
        170deg,
        transparent 0,
        transparent 12px,
        rgba(139, 92, 246, 0.08) 12px,
        rgba(139, 92, 246, 0.08) 13px,
        transparent 13px,
        transparent 40px
    );
    transform: translateX(-50%) rotate(-2deg);
    pointer-events: none;
    mask-image: linear-gradient(180deg, black 0%, transparent 70%);
}

.neon-particles::after {
    background: repeating-linear-gradient(
        190deg,
        transparent 0,
        transparent 25px,
        rgba(255, 0, 200, 0.06) 25px,
        rgba(255, 0, 200, 0.06) 26px,
        transparent 26px,
        transparent 55px
    );
    transform: translateX(-50%) rotate(2deg);
}

/* Neon text */
.neon-text {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.4em;
    font-family: 'Orbitron', sans-serif;
    font-weight: 900;
    font-style: italic;
    letter-spacing: 0.02em;
    z-index: 2;
    padding: 0 1rem;
}

.neon-word {
    font-size: clamp(2rem, 5.5vw, 4rem);
    background: linear-gradient(180deg, #ff5cf0 0%, #b026ff 45%, #6c1fd6 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    filter:
        drop-shadow(0 0 6px rgba(255, 0, 200, 0.9))
        drop-shadow(0 0 18px rgba(176, 38, 255, 0.6))
        drop-shadow(0 0 35px rgba(139, 92, 246, 0.4));
    text-shadow: 0 2px 0 rgba(0, 0, 0, 0.6);
}

.neon-letter {
    font-size: clamp(3rem, 8vw, 6rem);
    background: linear-gradient(180deg, #7dd7ff 0%, #2a9dff 50%, #1a4bff 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    filter:
        drop-shadow(0 0 6px rgba(0, 240, 255, 0.9))
        drop-shadow(0 0 18px rgba(42, 157, 255, 0.7))
        drop-shadow(0 0 35px rgba(26, 75, 255, 0.5));
    line-height: 0.9;
}

/* Parcours B inverts the accent letter color */
.neon-card-b .neon-word {
    background: linear-gradient(180deg, #ff5cf0 0%, #b026ff 45%, #6c1fd6 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.neon-card-b .neon-letter {
    background: linear-gradient(180deg, #7dd7ff 0%, #2a9dff 50%, #1a4bff 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Ground reflection */
.neon-reflection {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 35%;
    background:
        linear-gradient(180deg, transparent 0%, rgba(255, 0, 200, 0.08) 40%, rgba(0, 240, 255, 0.08) 100%),
        repeating-linear-gradient(90deg, transparent 0, transparent 2px, rgba(255, 255, 255, 0.03) 2px, rgba(255, 255, 255, 0.03) 3px);
    mask-image: linear-gradient(180deg, transparent 0%, black 60%, black 100%);
    filter: blur(0.5px);
    pointer-events: none;
}

.neon-reflection::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 50% 100%, rgba(139, 92, 246, 0.25), transparent 60%);
}

.parcours-card {
    position: relative;
    display: block;
    padding: 3rem 2.5rem;
    background: linear-gradient(145deg, rgba(17, 24, 39, 0.9), rgba(11, 15, 26, 0.9));
    border: 1px solid var(--border-subtle);
    text-decoration: none;
    color: inherit;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    clip-path: polygon(0 0, 100% 0, 100% calc(100% - 30px), calc(100% - 30px) 100%, 0 100%);
}

.parcours-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border: 1px solid transparent;
    background: linear-gradient(135deg, var(--neon-cyan), transparent 50%, var(--neon-magenta)) border-box;
    -webkit-mask:
        linear-gradient(#fff 0 0) padding-box,
        linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

.parcours-card:hover {
    transform: translateY(-8px);
    border-color: transparent;
}

.parcours-card:hover::before {
    opacity: 1;
}

.parcours-a:hover {
    box-shadow: 0 20px 60px rgba(0, 240, 255, 0.2), 0 0 40px rgba(0, 240, 255, 0.15);
}

.parcours-b:hover {
    box-shadow: 0 20px 60px rgba(255, 0, 200, 0.2), 0 0 40px rgba(255, 0, 200, 0.15);
}

.card-glow {
    position: absolute;
    top: -50%;
    right: -30%;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.3;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

.parcours-a .card-glow {
    background: var(--neon-cyan);
}

.parcours-b .card-glow {
    background: var(--neon-magenta);
}

.parcours-card:hover .card-glow {
    opacity: 0.6;
}

.card-number {
    font-family: 'Orbitron', sans-serif;
    font-size: 5rem;
    font-weight: 900;
    line-height: 1;
    color: transparent;
    -webkit-text-stroke: 1.5px rgba(255, 255, 255, 0.15);
    position: absolute;
    top: 1.5rem;
    right: 2rem;
}

.card-badge {
    display: inline-block;
    padding: 0.35rem 0.9rem;
    font-family: 'Orbitron', sans-serif;
    font-size: 0.65rem;
    letter-spacing: 0.25em;
    border: 1px solid var(--border-subtle);
    margin-bottom: 2rem;
}

.parcours-a .card-badge {
    color: var(--neon-cyan);
    border-color: rgba(0, 240, 255, 0.3);
    background: rgba(0, 240, 255, 0.05);
}

.parcours-b .card-badge {
    color: var(--neon-magenta);
    border-color: rgba(255, 0, 200, 0.3);
    background: rgba(255, 0, 200, 0.05);
}

.card-content {
    position: relative;
    z-index: 2;
}

.card-title {
    font-family: 'Orbitron', sans-serif;
    font-size: 2.5rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    margin-bottom: 1.25rem;
    color: var(--text-primary);
}

.parcours-a .card-title span {
    color: var(--neon-cyan);
    text-shadow: 0 0 15px rgba(0, 240, 255, 0.6);
}

.parcours-b .card-title span {
    color: var(--neon-magenta);
    text-shadow: 0 0 15px rgba(255, 0, 200, 0.6);
}

.card-desc {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 2rem;
    font-size: 1rem;
}

.card-features {
    list-style: none;
    margin-bottom: 2.5rem;
}

.card-features li {
    padding: 0.6rem 0;
    border-bottom: 1px solid var(--border-subtle);
    color: var(--text-primary);
    font-weight: 500;
    display: flex;
    align-items: center;
    letter-spacing: 0.02em;
}

.card-features li::before {
    content: '▸';
    margin-right: 0.75rem;
    font-size: 0.9rem;
}

.parcours-a .card-features li::before {
    color: var(--neon-cyan);
}

.parcours-b .card-features li::before {
    color: var(--neon-magenta);
}

.card-cta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1rem;
    font-family: 'Orbitron', sans-serif;
    font-size: 0.85rem;
    letter-spacing: 0.2em;
    font-weight: 700;
    text-transform: uppercase;
    transition: gap 0.3s ease;
}

.parcours-a .card-cta { color: var(--neon-cyan); }
.parcours-b .card-cta { color: var(--neon-magenta); }

.card-cta .arrow {
    display: inline-block;
    transition: transform 0.3s ease;
    font-size: 1.4rem;
}

.parcours-card:hover .card-cta .arrow {
    transform: translateX(10px);
}

/* ==== Footer ==== */
.footer {
    padding: 2rem;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
    letter-spacing: 0.1em;
    border-top: 1px solid var(--border-subtle);
}

/* ==============================
   PARCOURS DETAIL PAGES
   ============================== */

.detail-hero {
    min-height: 70vh;
    display: flex;
    align-items: center;
    padding: 10rem 3rem 4rem;
    position: relative;
    overflow: hidden;
}

.detail-hero-content {
    max-width: 1000px;
    margin: 0 auto;
    width: 100%;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    text-decoration: none;
    font-family: 'Orbitron', sans-serif;
    font-size: 0.75rem;
    letter-spacing: 0.25em;
    margin-bottom: 3rem;
    transition: color 0.2s ease;
}

.back-link:hover { color: var(--neon-cyan); }

.detail-eyebrow {
    font-family: 'Orbitron', sans-serif;
    font-size: 0.85rem;
    letter-spacing: 0.4em;
    margin-bottom: 1.5rem;
}

.detail-a .detail-eyebrow { color: var(--neon-cyan); }
.detail-b .detail-eyebrow { color: var(--neon-magenta); }

.detail-title {
    font-family: 'Orbitron', sans-serif;
    font-size: clamp(3.5rem, 10vw, 8rem);
    font-weight: 900;
    line-height: 0.9;
    margin-bottom: 2rem;
}

.detail-a .detail-title span {
    color: var(--neon-cyan);
    text-shadow: 0 0 30px rgba(0, 240, 255, 0.5);
}

.detail-b .detail-title span {
    color: var(--neon-magenta);
    text-shadow: 0 0 30px rgba(255, 0, 200, 0.5);
}

.detail-lead {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 700px;
    line-height: 1.6;
    margin-bottom: 3rem;
}

.detail-meta {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 2rem;
    padding: 2rem 0;
    border-top: 1px solid var(--border-subtle);
    border-bottom: 1px solid var(--border-subtle);
    max-width: 800px;
}

.meta-item .meta-label {
    font-family: 'Orbitron', sans-serif;
    font-size: 0.7rem;
    letter-spacing: 0.25em;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.meta-item .meta-value {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.detail-a .meta-item .meta-value { color: var(--neon-cyan); }
.detail-b .meta-item .meta-value { color: var(--neon-magenta); }

.challenges-section {
    padding: 6rem 3rem;
    max-width: 1200px;
    margin: 0 auto;
}

.section-title {
    font-family: 'Orbitron', sans-serif;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 3rem;
    letter-spacing: 0.05em;
}

.section-title::before {
    content: '// ';
    color: var(--neon-cyan);
}

.detail-b .section-title::before { color: var(--neon-magenta); }

.challenges-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.challenge-card {
    padding: 2rem 1.75rem;
    background: rgba(17, 24, 39, 0.5);
    border: 1px solid var(--border-subtle);
    transition: all 0.3s ease;
    position: relative;
}

.challenge-card:hover {
    transform: translateY(-4px);
    background: rgba(17, 24, 39, 0.9);
    border-color: rgba(0, 240, 255, 0.3);
}

.detail-b .challenge-card:hover {
    border-color: rgba(255, 0, 200, 0.3);
}

.challenge-num {
    font-family: 'Orbitron', sans-serif;
    font-size: 0.8rem;
    color: var(--text-muted);
    letter-spacing: 0.2em;
    margin-bottom: 0.75rem;
}

.challenge-title {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.challenge-desc {
    color: var(--text-secondary);
    line-height: 1.5;
    font-size: 0.95rem;
}

.cta-section {
    padding: 6rem 3rem;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.cta-title {
    font-family: 'Orbitron', sans-serif;
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 900;
    margin-bottom: 1.5rem;
    letter-spacing: 0.03em;
}

.cta-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 3rem;
}

.btn-primary {
    display: inline-block;
    padding: 1.25rem 3rem;
    font-family: 'Orbitron', sans-serif;
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    text-decoration: none;
    background: transparent;
    border: 2px solid var(--neon-cyan);
    color: var(--neon-cyan);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
    clip-path: polygon(15px 0, 100% 0, calc(100% - 15px) 100%, 0 100%);
}

.btn-primary:hover {
    background: var(--neon-cyan);
    color: var(--bg-primary);
    box-shadow: 0 0 40px rgba(0, 240, 255, 0.6);
}

.detail-b .btn-primary {
    border-color: var(--neon-magenta);
    color: var(--neon-magenta);
}

.detail-b .btn-primary:hover {
    background: var(--neon-magenta);
    color: var(--bg-primary);
    box-shadow: 0 0 40px rgba(255, 0, 200, 0.6);
}

/* ==== Responsive ==== */
@media (max-width: 768px) {
    .navbar {
        padding: 1rem 1.25rem;
    }

    .nav-links {
        gap: 1rem;
    }

    .nav-links a {
        font-size: 0.8rem;
    }

    .parcours-section {
        padding: 4rem 1.25rem 6rem;
    }

    .parcours-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .parcours-card {
        padding: 2rem 1.5rem;
    }

    .card-number {
        font-size: 3.5rem;
    }

    .card-title {
        font-size: 2rem;
    }

    .detail-hero {
        padding: 8rem 1.25rem 3rem;
    }

    .challenges-section, .cta-section {
        padding: 4rem 1.25rem;
    }

    .hero-image-section {
        padding: 6rem 1.25rem 2rem;
    }

    .salle-section {
        padding: 3rem 0 3rem 1.25rem;
    }

    .carousel-item {
        flex: 0 0 85%;
    }
}

/* ==============================
   HERO IMAGE + CAROUSEL (parcours detail)
   ============================== */

.hero-image-section {
    padding: 8rem 2rem 3rem;
    max-width: 1100px;
    margin: 0 auto;
    text-align: center;
}

.hero-image-section .back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    text-decoration: none;
    font-family: 'Orbitron', sans-serif;
    font-size: 0.75rem;
    letter-spacing: 0.25em;
    margin-bottom: 2.5rem;
    transition: color 0.2s ease;
}

.hero-image-section .back-link:hover {
    color: var(--neon-cyan);
}

.hero-image-wrap {
    position: relative;
    display: inline-block;
    max-width: 720px;
    width: 100%;
}

.hero-image-wrap::before {
    content: '';
    position: absolute;
    inset: -30px;
    background: radial-gradient(ellipse at center, rgba(139, 92, 246, 0.35), transparent 65%);
    filter: blur(30px);
    z-index: -1;
}

.hero-image {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 8px;
}

/* Salle sections */
.salle-section {
    padding: 4rem 0 4rem 3rem;
    max-width: 1400px;
    margin: 0 auto;
}

.salle-header {
    margin-bottom: 2rem;
    padding-right: 3rem;
}

.salle-tag {
    font-family: 'Orbitron', sans-serif;
    font-size: 0.75rem;
    letter-spacing: 0.35em;
    color: var(--neon-cyan);
    margin-bottom: 0.75rem;
    text-shadow: 0 0 8px rgba(0, 240, 255, 0.5);
}

.salle-title {
    font-family: 'Orbitron', sans-serif;
    font-size: clamp(1.5rem, 3vw, 2.25rem);
    font-weight: 700;
    letter-spacing: 0.05em;
    color: var(--text-primary);
}

/* Carousel */
.carousel {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-areas:
        "track track"
        "prev  next";
    gap: 1.25rem;
    align-items: start;
}

.carousel-track {
    grid-area: track;
    display: flex;
    gap: 1.25rem;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scroll-behavior: smooth;
    padding: 0.5rem 0 1rem 0;
    scrollbar-width: thin;
    scrollbar-color: rgba(0, 240, 255, 0.35) transparent;
}

.carousel-track::-webkit-scrollbar {
    height: 6px;
}

.carousel-track::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.04);
}

.carousel-track::-webkit-scrollbar-thumb {
    background: linear-gradient(90deg, var(--neon-cyan), var(--neon-magenta));
    border-radius: 4px;
}

.carousel-item {
    flex: 0 0 340px;
    scroll-snap-align: start;
    position: relative;
    overflow: hidden;
    border: 1px solid var(--border-subtle);
    background: rgba(11, 15, 26, 0.5);
    transition: transform 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease;
}

.carousel-item:hover {
    transform: translateY(-4px);
    border-color: rgba(0, 240, 255, 0.35);
    box-shadow: 0 15px 40px rgba(0, 240, 255, 0.15);
}

.carousel-item img {
    display: block;
    width: 100%;
    height: auto;
}

/* Carousel buttons — placed below the track */
.carousel-btn {
    width: 52px;
    height: 52px;
    border: 1px solid var(--neon-cyan);
    background: rgba(5, 7, 13, 0.85);
    color: var(--neon-cyan);
    font-family: 'Orbitron', sans-serif;
    font-size: 1.8rem;
    line-height: 1;
    cursor: pointer;
    backdrop-filter: blur(10px);
    transition: all 0.25s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-bottom: 4px;
}

.carousel-btn:hover {
    background: var(--neon-cyan);
    color: var(--bg-primary);
    box-shadow: 0 0 25px rgba(0, 240, 255, 0.6);
}

.carousel-btn.is-disabled {
    opacity: 0.25;
    pointer-events: none;
}

.carousel-prev {
    grid-area: prev;
    justify-self: end;
}

.carousel-next {
    grid-area: next;
    justify-self: start;
}

/* ==============================
   MISSION CARDS (index)
   ============================== */

.mission-card {
    display: block;
    text-decoration: none;
    color: inherit;
    overflow: hidden;
    border: 1px solid var(--border-subtle);
    background: #000;
    transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.4s ease, box-shadow 0.4s ease;
    position: relative;
}

.mission-card::after {
    content: '';
    position: absolute;
    inset: -1px;
    border-radius: inherit;
    background: linear-gradient(135deg, rgba(255, 0, 200, 0.35), transparent 40%, transparent 60%, rgba(0, 240, 255, 0.35));
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
    mix-blend-mode: overlay;
}

.mission-card:hover {
    transform: translateY(-10px) scale(1.01);
    border-color: rgba(255, 255, 255, 0.15);
    box-shadow:
        0 30px 80px rgba(255, 0, 200, 0.3),
        0 0 50px rgba(0, 240, 255, 0.25);
}

.mission-card:hover::after {
    opacity: 1;
}

.mission-image {
    display: block;
    width: 100%;
    height: auto;
    transition: transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.mission-card:hover .mission-image {
    transform: scale(1.03);
}

/* ==============================
   DÉFI FINAL SECTION (parcours pages)
   ============================== */

.defi-final-section {
    padding: 4rem 3rem 6rem;
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3rem;
}

.defi-final-header {
    text-align: center;
    position: relative;
}

.defi-final-header::before {
    content: '';
    position: absolute;
    inset: -40px;
    background: radial-gradient(ellipse at center, rgba(139, 92, 246, 0.35), transparent 65%);
    filter: blur(40px);
    z-index: -1;
}

.defi-final-logo {
    display: block;
    max-width: 520px;
    width: 100%;
    height: auto;
    border-radius: 12px;
}

.defi-final-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    width: 100%;
    max-width: 1100px;
}

.defi-final-poster {
    display: block;
    width: 100%;
    height: auto;
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    transition: transform 0.4s ease, border-color 0.4s ease, box-shadow 0.4s ease;
}

.defi-final-poster:hover {
    transform: translateY(-6px);
    border-color: rgba(0, 240, 255, 0.35);
    box-shadow: 0 20px 50px rgba(0, 240, 255, 0.2);
}

@media (max-width: 768px) {
    .defi-final-section {
        padding: 3rem 1.25rem 4rem;
    }
    .defi-final-content {
        grid-template-columns: 1fr;
    }
}