/* ============================================
   TRAIT D'UNION STUDIO - Premium CSS
   « Quand l'élégance se conçoit, la performance se déploie. »
   ============================================ */

:root {
    /* Couleurs officielles - Charte Graphique TUS */
    --tus-black-rgb: 7 8 10;
    --tus-white-rgb: 246 247 251;
    --surface-dark-rgb: 13 16 22;
    --stroke-dark-rgb: 246 247 251;

    --tus-black: #07080A;
    --tus-white: #F6F7FB;
    --tus-blue: #0B2DFF;
    --tus-blue-a11y: #4D6FFF; /* WCAG AA compliant sur fond #07080A (ratio 4.6:1) */
    --tus-green: #22C55E;
    --tus-green-light: #4ADE80;
    --surface-dark: #0D1016;
    --stroke-dark: rgba(246,247,251,0.10);
    /* ❌ Couleurs hors charte supprimées : tus-gray, tus-gray-light, tus-red */
    
    /* Opacités accessibles WCAG AA (ratio min 4.5:1 sur #07080A) */
    /* text-tus-white/80 = #C5C6C9 → ratio 9.4:1 ✅ AA */
    /* text-tus-white/70 = #AEB0B5 → ratio 7.6:1 ✅ AA */
    /* text-tus-white/60 = #979AA0 → ratio 6.0:1 ✅ AA */
    /* ⚠️ text-tus-white/50 = #7E8087 → ratio 4.5:1 → borderline, remonter à /60 préféré */
    /* ❌ text-tus-white/40 = #656870 → ratio 3.3:1 → FAIL AA, utiliser /50 minimum */
    /* ❌ text-tus-white/30 = #4D505A → ratio 2.3:1 → FAIL AA, OK pour décoratif uniquement */
}

/* Utility classes missing from Tailwind config */
.bg-tus-surface {
    background-color: var(--surface-dark);
}

.font-space {
    font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
}

#navbar {
    view-transition-name: navbar;
}

.main-view-transition {
    view-transition-name: main-content;
}

.mobile-menu-overlay {
    background-color: var(--tus-black) !important;
    background: linear-gradient(180deg, var(--tus-black) 0%, #000033 60%, #0B2DFF 100%) !important;
    overflow-y: auto;
    height: 100vh;
}

/* Accessibility overrides for legacy opacity utility classes */
.text-tus-white\/40,
.text-tus-white\/30 {
    color: rgb(var(--tus-white-rgb) / 0.6) !important;
}

.placeholder-tus-white\/40::placeholder,
.placeholder-tus-white\/30::placeholder {
    color: rgb(var(--tus-white-rgb) / 0.5) !important;
}

/* ============================================
   Base
   ============================================ */
* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'DM Sans', system-ui, sans-serif;
    background-color: var(--tus-black);
    color: var(--tus-white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-weight: 400;
    letter-spacing: -0.01em;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.025em;
}

h1 {
    font-weight: 800;
    letter-spacing: -0.035em;
}

h2 {
    font-weight: 700;
    letter-spacing: -0.03em;
}

h3 {
    font-weight: 700;
    letter-spacing: -0.02em;
}

h4, h5, h6 {
    font-weight: 600;
    letter-spacing: -0.015em;
}

/* ============================================
   Links & Buttons
   ============================================ */
a {
    color: inherit;
    text-decoration: none;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: var(--tus-blue);
    color: var(--tus-white);
    padding: 0.875rem 2rem;
    border-radius: 9999px;
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-weight: 600;
    letter-spacing: -0.01em;
    transition: all 150ms cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 24px rgba(11, 45, 255, 0.3);
}

.btn-primary:active {
    transform: translateY(0) scale(0.98);
    transition-duration: 80ms;
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: transparent;
    color: var(--tus-white);
    padding: 0.875rem 2rem;
    border: 1px solid var(--stroke-dark);
    border-radius: 9999px;
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-weight: 600;
    letter-spacing: -0.01em;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-secondary:hover {
    border-color: var(--tus-blue);
    background-color: rgba(11, 45, 255, 0.1);
}

.btn-secondary:active {
    transform: scale(0.98);
    transition-duration: 80ms;
}

/* ============================================
   Cards Premium
   ============================================ */
.card-premium {
    background: linear-gradient(180deg, rgb(var(--tus-white-rgb) / 0.03), rgb(var(--tus-white-rgb) / 0.01));
    border: 1px solid var(--stroke-dark);
    border-radius: 18px;
    padding: 2rem;
    transition: transform 150ms cubic-bezier(0.4, 0, 0.2, 1),
               border-color 150ms cubic-bezier(0.4, 0, 0.2, 1),
               box-shadow 150ms cubic-bezier(0.4, 0, 0.2, 1);
}

.card-premium:hover {
    border-color: rgba(11, 45, 255, 0.3);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
}

/* ============================================
   Gradient Text
   ============================================ */
.gradient-text {
    background: linear-gradient(90deg, var(--tus-blue), #2D5BFF, var(--tus-white));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ============================================
   Glass Effect
   ============================================ */
.glass {
    background: rgba(13, 16, 22, 0.8);
    -webkit-backdrop-filter: blur(20px);
    backdrop-filter: blur(20px);
}

/* ============================================
   Form Inputs Premium
   ============================================ */
input, select, textarea {
    font-family: 'DM Sans', sans-serif;
}

input:focus, select:focus, textarea:focus {
    outline: none;
}

/* Custom select arrow */
select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%23F6F7FB'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 1.25rem;
    padding-right: 3rem;
}

/* ============================================
   Loading States
   ============================================ */
.htmx-request {
    opacity: 0.6;
    transition: opacity 0.3s ease;
}

/* ============================================
   FAQ Accordion (HTMX)
   ============================================ */
.faq-item .faq-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 220ms cubic-bezier(0, 0, 0.2, 1);
}

.faq-item.open .faq-content {
    max-height: 500px;
}

.faq-item .faq-icon {
    transition: transform 150ms cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-item.open .faq-icon {
    transform: rotate(180deg);
}

.faq-item {
    transition: border-color 150ms cubic-bezier(0.4, 0, 0.2, 1),
               background-color 150ms cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-item.open {
    border-color: rgba(11, 45, 255, 0.3);
    background: rgb(var(--tus-white-rgb) / 0.03);
}

.htmx-request::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid transparent;
    border-top-color: var(--tus-blue);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ============================================
   Scrollbar Premium
   ============================================ */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--tus-black);
}

::-webkit-scrollbar-thumb {
    background: var(--stroke-dark);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgb(var(--tus-white-rgb) / 0.2);
}

/* ============================================
   Selection
   ============================================ */
::selection {
    background-color: var(--tus-blue);
    color: var(--tus-white);
}

/* ============================================
   Glow Effects
   ============================================ */
.glow-blue {
    box-shadow: 0 0 60px rgba(11, 45, 255, 0.3);
}

.glow-blue-hover:hover {
    box-shadow: 0 0 80px rgba(11, 45, 255, 0.5);
}

/* ============================================
   Apple-like Animations (Phase 2)
   ============================================ */

/* Fade Slide Up - entrée élégante */
@keyframes fadeSlideUp {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-slide-up {
    animation: fadeSlideUp 280ms cubic-bezier(0, 0, 0.2, 1) forwards;
}

/* Scale apparition */
@keyframes fadeScaleIn {
    from {
        opacity: 0;
        transform: scale(0.96);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.animate-scale-in {
    animation: fadeScaleIn 280ms cubic-bezier(0, 0, 0.2, 1) forwards;
}

/* Pulse lent pour backgrounds */
@keyframes pulseSlow {
    0%, 100% {
        opacity: 0.15;
        transform: scale(1);
    }
    50% {
        opacity: 0.25;
        transform: scale(1.05);
    }
}

.animate-pulse-slow {
    animation: pulseSlow 4s ease-in-out infinite;
}

/* Gradient shift horizontal */
@keyframes gradientShiftX {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}

.animate-gradient-x {
    background-size: 200% 200%;
    animation: gradientShiftX 3s ease infinite;
}

/* Float effet flottant */
@keyframes float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    25% {
        transform: translateY(-10px) rotate(1deg);
    }
    75% {
        transform: translateY(10px) rotate(-1deg);
    }
}

.animate-float {
    animation: float 6s ease-in-out infinite;
}

/* Ticker premium (contact page) */
.ticker-premium {
    animation: tickerPremium 28s linear infinite;
    padding-left: 100%;
}

.ticker-word {
    display: inline-block;
    margin: 0 0.3em;
    color: rgb(var(--tus-white-rgb) / 0.7);
    animation: wordShimmer 3s ease-in-out infinite;
    background: linear-gradient(90deg,
        rgb(var(--tus-white-rgb) / 0.7) 0%,
        var(--tus-white) 50%,
        rgb(var(--tus-white-rgb) / 0.7) 100%);
    background-size: 200% 100%;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

@keyframes tickerPremium {
    0% { transform: translateX(0); }
    100% { transform: translateX(-100%); }
}

@keyframes wordShimmer {
    0%, 100% { background-position: 200% center; }
    50% { background-position: -200% center; }
}

/* ============================================
   Client Portal - Palette Enforcement
   ============================================ */
.client-portal {
    background: var(--tus-black) !important;
}

.client-sidebar {
    background: var(--surface-dark) !important;
    border-right: 1px solid var(--stroke-dark) !important;
}

.nav-item.active {
    background: rgba(11, 45, 255, 0.12) !important;
    color: var(--tus-blue) !important;
}

.nav-item.active svg {
    stroke: var(--tus-blue) !important;
}

.nav-item.logout {
    color: rgba(246, 247, 251, 0.6) !important;
}

.nav-item.logout:hover {
    background: rgba(246, 247, 251, 0.06) !important;
    color: var(--tus-white) !important;
}

.client-portal .btn-client-primary,
.client-portal .btn-primary {
    background: var(--tus-blue) !important;
    border-radius: 10px;
    color: var(--tus-white) !important;
}

.client-portal .btn-client-primary:hover,
.client-portal .btn-primary:hover {
    background: rgba(11, 45, 255, 0.9) !important;
    box-shadow: 0 4px 20px rgba(11, 45, 255, 0.35) !important;
}

.client-portal .status-delivered,
.client-portal .status-accepted,
.client-portal .status-paid {
    background: rgba(34, 197, 94, 0.2) !important;
    color: var(--tus-green) !important;
}

.client-portal .status-briefing,
.client-portal .status-design,
.client-portal .status-development,
.client-portal .status-review,
.client-portal .status-sent {
    background: rgba(11, 45, 255, 0.15) !important;
    color: var(--tus-blue) !important;
}

.client-portal .status-paused,
.client-portal .status-expired,
.client-portal .status-draft,
.client-portal .status-rejected,
.client-portal .status-overdue,
.client-portal .status-cancelled {
    background: rgba(246, 247, 251, 0.12) !important;
    color: rgba(246, 247, 251, 0.7) !important;
}

.client-portal .empty-icon {
    background: rgba(11, 45, 255, 0.12) !important;
}

.client-portal .empty-icon svg {
    stroke: var(--tus-blue) !important;
}

/* Stagger delay utilities */
.stagger-1 { animation-delay: 0.1s; }
.stagger-2 { animation-delay: 0.2s; }
.stagger-3 { animation-delay: 0.3s; }
.stagger-4 { animation-delay: 0.4s; }
.stagger-5 { animation-delay: 0.5s; }
.stagger-6 { animation-delay: 0.6s; }
.stagger-7 { animation-delay: 0.7s; }
.stagger-8 { animation-delay: 0.8s; }

/* Magnetic button effect base */
.btn-magnetic {
    transition: transform 150ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Card interactive premium */
.card-interactive {
    transition: transform 150ms cubic-bezier(0.4, 0, 0.2, 1),
               box-shadow 150ms cubic-bezier(0.4, 0, 0.2, 1),
               border-color 150ms cubic-bezier(0.4, 0, 0.2, 1);
}

.card-interactive:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3),
               0 0 20px rgba(11, 45, 255, 0.08);
}

/* Link underline animation */
.link-animated {
    position: relative;
    display: inline-flex;
    align-items: center;
}

.link-animated::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--tus-blue), #00D4FF);
    transition: width 150ms cubic-bezier(0.4, 0, 0.2, 1);
}

.link-animated:hover::after {
    width: 100%;
}

/* Shine effect on hover */
.shine-hover {
    position: relative;
    overflow: hidden;
}

.shine-hover::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgb(var(--tus-white-rgb) / 0.06),
        transparent
    );
    transition: left 320ms cubic-bezier(0.4, 0, 0.2, 1);
}

.shine-hover:hover::before {
    left: 100%;
}

/* ============================================
   ULTRA-PREMIUM PORTFOLIO SYSTEM
   Senior-level design craft
   ============================================ */

/* --- Film Grain Texture Overlay --- */
.grain-overlay::after {
    content: '';
    position: fixed;
    inset: 0;
    z-index: 9990;
    pointer-events: none;
    opacity: 0.028;
    mix-blend-mode: overlay;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='1'/%3E%3C/svg%3E");
    background-repeat: repeat;
    background-size: 256px 256px;
}

/* --- Custom Scrollbar --- */
::-webkit-scrollbar {
    width: 6px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: rgba(11, 45, 255, 0.25);
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
    background: rgba(11, 45, 255, 0.45);
}

/* --- Hero Mouse-Following Glow --- */
.hero-glow-cursor {
    position: absolute;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(11,45,255,0.08) 0%, rgba(11,45,255,0.03) 35%, transparent 70%);
    pointer-events: none;
    transform: translate(-50%, -50%);
    transition: left 0.8s cubic-bezier(0.16, 1, 0.3, 1), top 0.8s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.6s ease;
    will-change: left, top;
    opacity: 0;
    z-index: 1;
}
.hero-glow-cursor.visible {
    opacity: 1;
}

/* --- Premium Scroll Indicator --- */
.scroll-capsule {
    width: 28px;
    height: 48px;
    border: 1.5px solid rgb(var(--tus-white-rgb) / 0.15);
    border-radius: 14px;
    position: relative;
    overflow: hidden;
}
.scroll-capsule::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 3px;
    height: 10px;
    background: linear-gradient(180deg, rgba(11,45,255,0.8), rgba(11,45,255,0.2));
    border-radius: 2px;
    animation: scrollPulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}
@keyframes scrollPulse {
    0%, 100% { top: 8px; opacity: 1; height: 10px; }
    50% { top: 26px; opacity: 0.3; height: 6px; }
}

/* --- Gradient Shimmer on Text --- */
.text-shimmer {
    background: linear-gradient(
        120deg,
        rgb(var(--tus-white-rgb) / 0.04) 0%,
        rgb(var(--tus-white-rgb) / 0.08) 30%,
        rgba(11,45,255,0.12) 50%,
        rgb(var(--tus-white-rgb) / 0.08) 70%,
        rgb(var(--tus-white-rgb) / 0.04) 100%
    );
    background-size: 300% 100%;
    -webkit-background-clip: text;
    background-clip: text;
    animation: shimmerSlide 8s ease-in-out infinite;
}
@keyframes shimmerSlide {
    0%, 100% { background-position: 300% center; }
    50% { background-position: 0% center; }
}

/* --- Chapter Accent Bar --- */
.chapter-accent {
    width: 3px;
    height: 0;
    background: linear-gradient(180deg, var(--accent, rgba(11,45,255,0.8)), transparent);
    border-radius: 2px;
    transition: height 1.2s cubic-bezier(0.16, 1, 0.3, 1) 0.3s;
}
.reveal-left.active .chapter-accent,
.reveal-right.active .chapter-accent,
.reveal.active .chapter-accent {
    height: 64px;
}

/* --- Code Editor Scanline --- */
.code-scanline {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
    z-index: 2;
}
.code-scanline::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, rgba(11,45,255,0.15), transparent);
    box-shadow: 0 0 20px 4px rgba(11,45,255,0.06);
    animation: scanline 6s ease-in-out infinite;
    opacity: 0;
}
.group:hover .code-scanline::after {
    opacity: 1;
}
@keyframes scanline {
    0% { top: -2px; }
    100% { top: 100%; }
}

/* --- Gallery Tilt Effect --- */
.gallery-tilt {
    transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.5s ease;
    transform-style: preserve-3d;
    perspective: 1000px;
}
.gallery-tilt:hover {
    box-shadow: 0 25px 80px rgba(0,0,0,0.5), 0 0 40px rgba(11,45,255,0.08);
}

/* --- Glassmorphism Cards --- */
.glass-card {
    background: rgb(var(--tus-white-rgb) / 0.02);
    -webkit-backdrop-filter: blur(16px);
    backdrop-filter: blur(16px);
    border: 1px solid rgb(var(--tus-white-rgb) / 0.08);
    position: relative;
    overflow: hidden;
    transition: border-color 0.5s ease, box-shadow 0.5s ease, transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}
.glass-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(135deg, rgba(11,45,255,0.2), transparent 40%, transparent 60%, rgba(34,197,94,0.15));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.5s ease;
    pointer-events: none;
}
.glass-card:hover::before {
    opacity: 1;
}
.glass-card:hover {
    border-color: rgba(11,45,255,0.15);
    box-shadow: 0 20px 60px rgba(0,0,0,0.4), 0 0 40px rgba(11,45,255,0.06);
    transform: translateY(-4px);
}

/* --- Glass Card Light Leak --- */
.glass-card-glow {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 30% 30%, rgba(11,45,255,0.06), transparent 50%);
    opacity: 0;
    transition: opacity 0.6s ease;
    pointer-events: none;
}
.glass-card:hover .glass-card-glow {
    opacity: 1;
}

/* --- Magnetic CTA Wrapper --- */
.magnetic-wrap {
    display: inline-flex;
    perspective: 500px;
}
.magnetic-wrap > * {
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

/* --- Enhanced Hero Decorative Line --- */
.hero-rule {
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(11,45,255,0.4), rgba(34,197,94,0.3), transparent);
    opacity: 0;
    transform: scaleX(0);
    transition: opacity 1s ease 0.5s, transform 1.2s cubic-bezier(0.16, 1, 0.3, 1) 0.5s;
}
.hero-rule.active {
    opacity: 1;
    transform: scaleX(1);
}

/* --- Success Glow for Ch.04 --- */
.success-glow {
    position: absolute;
    inset: -100px;
    background: radial-gradient(ellipse at center, rgba(34,197,94,0.06) 0%, transparent 65%);
    pointer-events: none;
    opacity: 0;
    transition: opacity 1.5s ease;
}
.narrative-chapter[data-chapter="4"] .success-glow.visible {
    opacity: 1;
}

/* --- Timeline Pulse Dots --- */
.timeline-pulse {
    position: absolute;
    inset: -3px;
    border-radius: 50%;
    border: 1px solid currentColor;
    opacity: 0;
    animation: timelinePulse 2.5s ease-out infinite;
}
@keyframes timelinePulse {
    0% { transform: scale(1); opacity: 0.5; }
    100% { transform: scale(2.2); opacity: 0; }
}

/* --- Dual Spark (second spark from right) --- */
.suspense-divider .divider-spark-right {
    opacity: 0;
    right: 0;
    left: auto;
}
.suspense-divider.active .divider-spark-right {
    animation: spark-traverse-right 1.4s cubic-bezier(0.4, 0, 0.2, 1) 0.8s forwards;
}
@keyframes spark-traverse-right {
    0% { opacity: 0; right: 5%; filter: blur(2px); }
    8% { opacity: 1; filter: blur(0); }
    75% { opacity: 1; filter: blur(0); }
    100% { opacity: 0; right: 50%; transform: translateY(-50%) scale(0.3); filter: blur(1px); }
}

/* --- Echo Shockwave (second delayed ring) --- */
.suspense-divider .divider-echo {
    opacity: 0;
    width: 0;
    height: 0;
}
.suspense-divider.active .divider-echo {
    animation: echo-burst 1s ease-out 2.5s forwards;
}
@keyframes echo-burst {
    0% { opacity: 0.4; width: 0; height: 0; border-width: 1.5px; }
    40% { opacity: 0.25; }
    100% { opacity: 0; width: 180px; height: 180px; border-width: 0.5px; }
}

/* --- Magnetic Field Distortion --- */
.suspense-divider .divider-field {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 400px;
    height: 80px;
    opacity: 0;
    background: radial-gradient(ellipse, rgba(11,45,255,0.04) 0%, transparent 60%);
    transition: opacity 1s ease 3s;
    pointer-events: none;
}
.suspense-divider[data-color="green"] .divider-field {
    background: radial-gradient(ellipse, rgba(34,197,94,0.04) 0%, transparent 60%);
}
.suspense-divider.active .divider-field {
    opacity: 1;
}

/* --- Divider Label Letter-Spacing Reveal --- */
.suspense-divider .divider-label span {
    letter-spacing: 0.8em;
    transition: letter-spacing 1.5s cubic-bezier(0.16, 1, 0.3, 1) 4s, opacity 1s ease 4.2s, transform 1s cubic-bezier(0.16, 1, 0.3, 1) 4.2s;
}
.suspense-divider.active .divider-label span {
    letter-spacing: 0.35em;
}

/* --- Image Luminance Border on Hover --- */
.image-luminance {
    position: relative;
}
.image-luminance::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    border: 1px solid transparent;
    transition: border-color 0.6s ease;
    pointer-events: none;
}
.image-luminance:hover::after {
    border-color: rgba(11,45,255,0.15);
}

/* --- Floating Badge --- */
.badge-float {
    transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.5s ease;
}
.badge-float:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(11,45,255,0.15);
}

/* --- Section Fade Edges --- */
.section-vignette::before,
.section-vignette::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    height: 120px;
    pointer-events: none;
    z-index: 2;
}
.section-vignette::before {
    top: 0;
    background: linear-gradient(180deg, var(--tus-black), transparent);
}
.section-vignette::after {
    bottom: 0;
    background: linear-gradient(0deg, var(--tus-black), transparent);
}

/* --- Premium Number Counter Style --- */
.number-display {
    font-variant-numeric: tabular-nums;
    letter-spacing: -0.06em;
    background: linear-gradient(180deg, rgb(var(--tus-white-rgb) / 0.06) 0%, rgb(var(--tus-white-rgb) / 0.02) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 0 30px rgba(11,45,255,0.05));
}

/* ============================================
   APPLE-LIKE SCROLL REVEAL
   ============================================ */
/* ---- MOTION TOKENS v2 — Premium / Visible ----
   reveal       : 800ms  ease-out-expo
   reveal-fast  : 500ms  ease-out-expo
   stagger      : 120ms per child
   offset       : 60px vertical, 80px horizontal
   blur-start   : 8px
   ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1)
   ---- */

.reveal {
    opacity: 0;
    transform: translateY(60px);
    filter: blur(8px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
               transform 0.8s cubic-bezier(0.16, 1, 0.3, 1),
               filter 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
    filter: blur(0);
}

.reveal-scale {
    opacity: 0;
    transform: scale(0.9);
    filter: blur(6px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
               transform 0.8s cubic-bezier(0.16, 1, 0.3, 1),
               filter 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-scale.active {
    opacity: 1;
    transform: scale(1);
    filter: blur(0);
}

.reveal-left {
    opacity: 0;
    transform: translateX(-80px);
    filter: blur(8px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
               transform 0.8s cubic-bezier(0.16, 1, 0.3, 1),
               filter 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-left.active {
    opacity: 1;
    transform: translateX(0);
    filter: blur(0);
}

.reveal-right {
    opacity: 0;
    transform: translateX(80px);
    filter: blur(8px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
               transform 0.8s cubic-bezier(0.16, 1, 0.3, 1),
               filter 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-right.active {
    opacity: 1;
    transform: translateX(0);
    filter: blur(0);
}

/* Reveal avec rotation subtile */
.reveal-rotate {
    opacity: 0;
    transform: translateY(40px) rotate(3deg);
    filter: blur(6px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
               transform 0.8s cubic-bezier(0.16, 1, 0.3, 1),
               filter 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-rotate.active {
    opacity: 1;
    transform: translateY(0) rotate(0);
    filter: blur(0);
}

/* Clip-reveal (text wipe from bottom) */
.reveal-clip {
    clip-path: inset(100% 0 0 0);
    transition: clip-path 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-clip.active {
    clip-path: inset(0 0 0 0);
}

/* Stagger children — appliqué par JS */
.stagger-children > * {
    opacity: 0;
    transform: translateY(40px);
    filter: blur(6px);
    transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
               transform 0.6s cubic-bezier(0.16, 1, 0.3, 1),
               filter 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.stagger-children.active > * {
    opacity: 1;
    transform: translateY(0);
    filter: blur(0);
}

/* Progress-reveal pour la timeline method */
.step-reveal {
    opacity: 0;
    transform: translateX(-40px);
    filter: blur(8px);
    transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
               transform 0.7s cubic-bezier(0.16, 1, 0.3, 1),
               filter 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.step-reveal.active {
    opacity: 1;
    transform: translateX(0);
    filter: blur(0);
}

/* La ligne de la timeline qui grandit */
.timeline-line {
    transform-origin: top;
    transform: scaleY(0);
    transition: transform 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.timeline-line.active {
    transform: scaleY(1);
}

/* Le cercle numéroté qui pulse à l'apparition */
.step-number {
    transform: scale(0);
    transition: transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.step-number.active {
    transform: scale(1);
}

@keyframes stepPulse {
    0% { box-shadow: 0 0 0 0 rgba(11, 45, 255, 0.6); }
    70% { box-shadow: 0 0 0 14px rgba(11, 45, 255, 0); }
    100% { box-shadow: 0 0 0 0 rgba(11, 45, 255, 0); }
}

.step-number.active {
    animation: stepPulse 0.8s ease-out 0.3s;
}

/* Parallax-like scroll offset — see global section below */

/* ============================================
   NAVBAR SCROLL EFFECTS
   ============================================ */
.navbar-scrolled {
    background-color: rgba(7, 8, 10, 0.95) !important;
    -webkit-backdrop-filter: blur(30px) saturate(180%) !important;
    backdrop-filter: blur(30px) saturate(180%) !important;
    border-color: rgba(246, 247, 251, 0.08) !important;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

/* ============================================
   CUSTOM CURSOR — Immersive (hides OS cursor)
   ============================================ */
html.has-custom-cursor,
html.has-custom-cursor * {
    cursor: none !important;
}

.cursor-dot {
    width: 8px;
    height: 8px;
    background: var(--tus-white);
    border-radius: 50%;
    position: fixed;
    pointer-events: none;
    z-index: 99999;
    transform: translate(-50%, -50%);
    mix-blend-mode: difference;
    will-change: left, top;
}

.cursor-dot.clicking {
    transform: translate(-50%, -50%) scale(0.6);
}

.cursor-ring {
    width: 40px;
    height: 40px;
    border: 1.5px solid rgba(246, 247, 251, 0.5);
    border-radius: 50%;
    position: fixed;
    pointer-events: none;
    z-index: 99998;
    transform: translate(-50%, -50%);
    will-change: left, top, width, height;
    transition: width 0.4s cubic-bezier(0.16, 1, 0.3, 1),
               height 0.4s cubic-bezier(0.16, 1, 0.3, 1),
               border-color 0.3s ease,
               background 0.3s ease,
               opacity 0.3s ease;
    mix-blend-mode: difference;
}

.cursor-ring.hover {
    width: 64px;
    height: 64px;
    background: rgba(246, 247, 251, 0.08);
    border-color: rgba(246, 247, 251, 0.8);
}

.cursor-ring.hover-text {
    width: 100px;
    height: 100px;
    background: rgba(11, 45, 255, 0.9);
    border-color: transparent;
    mix-blend-mode: normal;
}

.cursor-ring.hover-text::after {
    content: 'Voir';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 12px;
    font-weight: 600;
    color: var(--tus-white);
    letter-spacing: 0.05em;
}

.cursor-ring.clicking {
    width: 32px;
    height: 32px;
    transition-duration: 0.1s;
}

/* Hide on touch devices */
@media (hover: none) {
    html.has-custom-cursor,
    html.has-custom-cursor * {
        cursor: auto !important;
    }
    .cursor-dot, .cursor-ring {
        display: none !important;
    }
}

/* ============================================
   BENTO GRID (Apple Style)
   ============================================ */
.bento-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-auto-rows: minmax(200px, auto);
    gap: 1rem;
}

.bento-item {
    background: linear-gradient(180deg, rgb(var(--tus-white-rgb) / 0.05) 0%, rgb(var(--tus-white-rgb) / 0.02) 100%);
    border: 1px solid rgb(var(--tus-white-rgb) / 0.08);
    border-radius: 24px;
    padding: 2rem;
    overflow: hidden;
    position: relative;
    transition: transform 150ms cubic-bezier(0.4, 0, 0.2, 1),
               border-color 150ms cubic-bezier(0.4, 0, 0.2, 1),
               box-shadow 150ms cubic-bezier(0.4, 0, 0.2, 1);
}

.bento-item::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(11, 45, 255, 0.15) 0%, transparent 50%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.bento-item:hover::before {
    opacity: 1;
}

.bento-item:hover {
    border-color: rgba(11, 45, 255, 0.3);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3),
               0 0 16px rgba(11, 45, 255, 0.06);
}

.bento-large {
    grid-column: span 2;
    grid-row: span 2;
}

.bento-wide {
    grid-column: span 2;
}

.bento-tall {
    grid-row: span 2;
}

@media (max-width: 1024px) {
    .bento-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .bento-large {
        grid-column: span 2;
        grid-row: span 1;
    }
}

@media (max-width: 640px) {
    .bento-grid {
        grid-template-columns: 1fr;
    }
    .bento-large, .bento-wide, .bento-tall {
        grid-column: span 1;
        grid-row: span 1;
    }
}

/* ============================================
   TEXT GRADIENT ANIMATION
   ============================================ */
.text-gradient-animated {
    background: linear-gradient(
        90deg,
        var(--tus-white) 0%,
        var(--tus-blue) 25%,
        #00D4FF 50%,
        var(--tus-blue) 75%,
        var(--tus-white) 100%
    );
    background-size: 200% auto;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: textGradient 4s linear infinite;
}

@keyframes textGradient {
    0% { background-position: 0% center; }
    100% { background-position: 200% center; }
}

/* ============================================
   GLOW BUTTON PREMIUM
   ============================================ */
.btn-glow {
    position: relative;
    overflow: visible;
}

.btn-glow::before {
    content: '';
    position: absolute;
    inset: -2px;
    background: linear-gradient(90deg, var(--tus-blue), #00D4FF, var(--tus-blue));
    border-radius: inherit;
    z-index: -1;
    opacity: 0;
    filter: blur(10px);
    transition: opacity 150ms cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-glow:hover::before {
    opacity: 0.5;
}

/* ============================================
   3D CARD TILT
   ============================================ */
.card-3d {
    transform-style: preserve-3d;
    perspective: 1000px;
    transition: transform 0.3s ease;
}

.card-3d-inner {
    transition: transform 0.3s ease;
}

.card-tilt {
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1),
               box-shadow 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.card-tilt:hover {
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4),
               0 0 30px rgba(11, 45, 255, 0.1);
}

/* Service card hover glow overlay */
.service-card-glow {
    transition: opacity 0.5s ease, transform 0.5s cubic-bezier(0.16, 1, 0.3, 1),
               border-color 0.3s ease, box-shadow 0.3s ease;
}

.service-card-glow:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3),
               0 0 20px rgba(11, 45, 255, 0.1);
}

/* ============================================
   MARQUEE SCROLL
   ============================================ */
.marquee-container {
    overflow: hidden;
    white-space: nowrap;
}

.marquee-content {
    display: inline-block;
    animation: marqueeScroll 30s linear infinite;
}

@keyframes marqueeScroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* ============================================
   BLOB ANIMATED BACKGROUND
   ============================================ */
.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
    animation: blobMove 20s ease-in-out infinite;
}

@keyframes blobMove {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    25% {
        transform: translate(30px, -50px) scale(1.1);
    }
    50% {
        transform: translate(-20px, 20px) scale(0.9);
    }
    75% {
        transform: translate(50px, 50px) scale(1.05);
    }
}

/* ============================================
   NUMBER COUNTER ANIMATION
   ============================================ */
.counter {
    display: inline-block;
    font-variant-numeric: tabular-nums;
}

/* Respect user preferences */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    
    html.has-custom-cursor,
    html.has-custom-cursor * {
        cursor: auto !important;
    }
    .cursor-dot, .cursor-ring {
        display: none !important;
    }
    
    .animate-pulse-slow,
    .animate-float,
    .animate-gradient-x,
    .reveal,
    .reveal-scale,
    .reveal-left,
    .reveal-right,
    .reveal-rotate,
    .reveal-clip,
    .step-reveal,
    .step-number,
    .timeline-line,
    .stagger-children > * {
        animation: none !important;
        opacity: 1 !important;
        transform: none !important;
        filter: none !important;
        clip-path: none !important;
    }
    
    .parallax-slow {
        transform: none !important;
    }
    
    .narrative-word {
        opacity: 1 !important;
    }
    
    .hero-word {
        transform: none !important;
        opacity: 1 !important;
    }
}

/* ============================================
   LENIS SMOOTH SCROLL
   ============================================ */
html.lenis, html.lenis body {
    height: auto;
}

.lenis.lenis-smooth {
    scroll-behavior: auto !important;
}

.lenis.lenis-smooth [data-lenis-prevent] {
    overscroll-behavior: contain;
}

.lenis.lenis-stopped {
    overflow: hidden;
}

/* ============================================
   SCROLL PROGRESS BAR
   ============================================ */
#scroll-progress {
    transition: none;
    pointer-events: none;
    -webkit-backdrop-filter: blur(4px);
    backdrop-filter: blur(4px);
}

/* ============================================
   CHAPTER NAVIGATION DOTS
   ============================================ */
#chapter-nav .chapter-dot span:first-child {
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ============================================
   CHAPTER DIVIDERS — Suspense cinématique VIVANT
   5 actes : silence → étincelle → traversée → impact → révélation
   ============================================ */

/* --- Acte 0 : Tout est invisible, tension silencieuse --- */
.suspense-divider .divider-track {
    transform: scaleX(0);
    transition: transform 1.6s cubic-bezier(0.22, 1, 0.36, 1);
}

.suspense-divider .divider-spark {
    opacity: 0;
    left: 0;
}

.suspense-divider .divider-shockwave {
    opacity: 0;
    width: 0;
    height: 0;
}

.suspense-divider .divider-glow {
    opacity: 0;
    transform: translate(-50%, -50%) scale(0.2);
}

.suspense-divider .divider-orb {
    opacity: 0;
    transform: translate(-50%, -50%) scale(0);
}

.suspense-divider .divider-line-left,
.suspense-divider .divider-line-right {
    width: 0;
}

.suspense-divider .divider-sparks {
    opacity: 0;
}

.suspense-divider .divider-sparks .spark {
    opacity: 0;
}

.suspense-divider .divider-label {
    opacity: 0;
    transform: translate(-50%, 0) translateY(15px);
    transition: opacity 1s ease 4.2s, transform 1s cubic-bezier(0.16, 1, 0.3, 1) 4.2s;
}

/* --- Acte 1 : Track apparaît doucement (0→1.6s) --- */
.suspense-divider.active .divider-track {
    transform: scaleX(1);
}

/* --- Acte 2 : Spark traverse de gauche au centre (0.8→2.2s) --- */
.suspense-divider.active .divider-spark {
    animation: spark-traverse 1.4s cubic-bezier(0.4, 0, 0.2, 1) 0.8s forwards;
}

/* --- Acte 3 : Impact au centre — shockwave + glow + orb (2.2s) --- */
.suspense-divider.active .divider-shockwave {
    animation: shockwave-burst 0.8s ease-out 2.2s forwards;
}

.suspense-divider.active .divider-glow {
    animation: glow-ignite 1.4s cubic-bezier(0.16, 1, 0.3, 1) 2.2s forwards,
               glow-breathe 4s ease-in-out 3.6s infinite;
}

.suspense-divider.active .divider-orb {
    animation: orb-materialize 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) 2.4s forwards,
               orb-heartbeat 3s ease-in-out 3.2s infinite;
}

/* --- Acte 3b : Étincelles à l'impact (2.3s) --- */
.suspense-divider.active .divider-sparks {
    opacity: 1;
    animation: sparks-burst 0.6s ease-out 2.3s forwards;
}

.suspense-divider.active .divider-sparks .spark:nth-child(1) {
    animation: spark-fly 0.7s ease-out 2.3s forwards;
    --spark-x: -18px;
    --spark-y: -22px;
}
.suspense-divider.active .divider-sparks .spark:nth-child(2) {
    animation: spark-fly 0.6s ease-out 2.35s forwards;
    --spark-x: 22px;
    --spark-y: -16px;
}
.suspense-divider.active .divider-sparks .spark:nth-child(3) {
    animation: spark-fly 0.8s ease-out 2.28s forwards;
    --spark-x: -12px;
    --spark-y: 20px;
}
.suspense-divider.active .divider-sparks .spark:nth-child(4) {
    animation: spark-fly 0.5s ease-out 2.32s forwards;
    --spark-x: 16px;
    --spark-y: 18px;
}
.suspense-divider.active .divider-sparks .spark:nth-child(5) {
    animation: spark-fly 0.65s ease-out 2.26s forwards;
    --spark-x: -8px;
    --spark-y: -26px;
}

/* --- Acte 4 : Lignes d'énergie s'étendent (2.8s) --- */
.suspense-divider.active .divider-line-left,
.suspense-divider.active .divider-line-right {
    animation: line-extend 2s cubic-bezier(0.16, 1, 0.3, 1) 2.8s forwards;
}

/* --- Acte 5 : Label final (4.2s) --- */
.suspense-divider.active .divider-label {
    opacity: 1;
    transform: translate(-50%, 0) translateY(0);
}

/* ============================================
   KEYFRAMES — L'âme de l'animation
   ============================================ */

/* Particule qui traverse la scène */
@keyframes spark-traverse {
    0% {
        opacity: 0;
        left: 5%;
        filter: blur(2px);
    }
    8% {
        opacity: 1;
        filter: blur(0);
    }
    75% {
        opacity: 1;
        filter: blur(0);
    }
    100% {
        opacity: 0;
        left: 50%;
        transform: translateY(-50%) scale(0.3);
        filter: blur(1px);
    }
}

/* Onde de choc à l'impact */
@keyframes shockwave-burst {
    0% {
        opacity: 0.7;
        width: 0;
        height: 0;
        border-width: 2px;
    }
    50% {
        opacity: 0.4;
        border-width: 1px;
    }
    100% {
        opacity: 0;
        width: 120px;
        height: 120px;
        border-width: 0.5px;
    }
}

/* Halo qui prend vie */
@keyframes glow-ignite {
    0% {
        opacity: 0;
        transform: translate(-50%, -50%) scale(0.2);
    }
    60% {
        opacity: 0.9;
        transform: translate(-50%, -50%) scale(1.15);
    }
    100% {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }
}

/* Halo qui respire — organique, pas mécanique */
@keyframes glow-breathe {
    0%, 100% {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }
    30% {
        opacity: 0.6;
        transform: translate(-50%, -50%) scale(1.08);
    }
    70% {
        opacity: 0.85;
        transform: translate(-50%, -50%) scale(0.95);
    }
}

/* Orbe qui se matérialise avec un léger rebond */
@keyframes orb-materialize {
    0% {
        opacity: 0;
        transform: translate(-50%, -50%) scale(0);
        filter: brightness(3);
    }
    50% {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1.4);
        filter: brightness(2);
    }
    75% {
        transform: translate(-50%, -50%) scale(0.85);
        filter: brightness(1.2);
    }
    100% {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
        filter: brightness(1);
    }
}

/* Battement de cœur de l'orbe — asymétrique, organique */
@keyframes orb-heartbeat {
    0%, 100% {
        transform: translate(-50%, -50%) scale(1);
        filter: brightness(1);
    }
    15% {
        transform: translate(-50%, -50%) scale(1.5);
        filter: brightness(1.6);
    }
    25% {
        transform: translate(-50%, -50%) scale(0.9);
        filter: brightness(0.95);
    }
    35% {
        transform: translate(-50%, -50%) scale(1.25);
        filter: brightness(1.3);
    }
    50% {
        transform: translate(-50%, -50%) scale(1);
        filter: brightness(1);
    }
}

/* Étincelle individuelle qui s'envole */
@keyframes spark-fly {
    0% {
        opacity: 1;
        transform: translate(0, 0) scale(1);
    }
    100% {
        opacity: 0;
        transform: translate(var(--spark-x), var(--spark-y)) scale(0);
    }
}

/* Lignes qui s'étendent avec de l'élan */
@keyframes line-extend {
    0% {
        width: 0;
        opacity: 0;
    }
    15% {
        opacity: 1;
    }
    100% {
        width: 42%;
        opacity: 1;
    }
}

/* ============================================
   STRATEGY TIMELINE LINE
   ============================================ */
.strategy-timeline-line {
    transform: scaleY(0);
    transform-origin: top;
    transition: transform 1.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-left.is-visible ~ .reveal-left .strategy-timeline-line,
section[data-chapter="3"].is-visible .strategy-timeline-line,
.strategy-timeline-line {
    transform: scaleY(0);
}

section[data-chapter="3"] .reveal-left.is-visible .strategy-timeline-line {
    transform: scaleY(1);
}

/* Simple fallback: just animate on section visibility */
section[data-chapter="3"].narrative-chapter .strategy-timeline-line {
    animation: timeline-grow 1.8s cubic-bezier(0.16, 1, 0.3, 1) 0.5s both;
}

@keyframes timeline-grow {
    from { transform: scaleY(0); }
    to   { transform: scaleY(1); }
}

/* ============================================
   NARRATIVE TEXT EFFECTS
   ============================================ */
.narrative-text {
    line-height: 1.7;
    font-family: 'DM Sans', system-ui, sans-serif;
    font-weight: 300;
    letter-spacing: -0.005em;
}

/* ============================================
   PROSE CHAPTER — Rich HTML content from TinyMCE
   Override Tailwind CDN preflight resets
   Premium typography hierarchy
   ============================================ */
.prose-chapter {
    font-family: 'DM Sans', system-ui, sans-serif;
    font-weight: 400;
    line-height: 1.75;
    letter-spacing: -0.005em;
    text-rendering: optimizeLegibility;
}
.prose-chapter p {
    display: block !important;
    margin-bottom: 1em;
}
.prose-chapter p:last-child {
    margin-bottom: 0;
}
.prose-chapter ul,
.prose-chapter ol {
    display: block !important;
    margin: 1em 0 !important;
    padding-left: 1.5em !important;
}
.prose-chapter ul {
    list-style-type: disc !important;
}
.prose-chapter ol {
    list-style-type: decimal !important;
}
.prose-chapter li {
    display: list-item !important;
    margin-bottom: 0.5em;
    line-height: 1.75;
    font-weight: 400;
    color: rgb(var(--tus-white-rgb) / 0.88);
}
.prose-chapter li::marker {
    color: rgba(11, 45, 255, 0.6);
}
.prose-chapter strong,
.prose-chapter b {
    font-weight: 700 !important;
    color: var(--tus-white);
    letter-spacing: -0.01em;
}
.prose-chapter em,
.prose-chapter i {
    font-style: italic !important;
    color: rgb(var(--tus-white-rgb) / 0.92);
}
.prose-chapter u {
    text-decoration: underline !important;
    text-underline-offset: 3px;
    text-decoration-color: rgba(11, 45, 255, 0.4);
}
.prose-chapter blockquote {
    display: block !important;
    border-left: 3px solid rgba(11, 45, 255, 0.5);
    padding-left: 1.5em;
    margin: 1.5em 0;
    color: rgb(var(--tus-white-rgb) / 0.75);
    font-style: italic;
    font-weight: 400;
}
.prose-chapter h3 {
    display: block !important;
    font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
    font-size: 1.3em;
    font-weight: 700 !important;
    letter-spacing: -0.02em;
    margin: 1.8em 0 0.6em;
    color: rgb(var(--tus-white-rgb) / 0.95);
}
.prose-chapter h4 {
    display: block !important;
    font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
    font-size: 1.15em;
    font-weight: 600 !important;
    letter-spacing: -0.015em;
    margin: 1.4em 0 0.5em;
    color: rgb(var(--tus-white-rgb) / 0.9);
}
.prose-chapter h5 {
    display: block !important;
    font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
    font-size: 1em;
    font-weight: 600 !important;
    letter-spacing: -0.01em;
    margin: 1.2em 0 0.4em;
    color: rgb(var(--tus-white-rgb) / 0.85);
    text-transform: uppercase;
    font-size: 0.85em;
    letter-spacing: 0.05em;
}
.prose-chapter a {
    color: rgba(11, 45, 255, 0.9);
    text-decoration: underline !important;
    text-underline-offset: 3px;
    text-decoration-color: rgba(11, 45, 255, 0.3);
    transition: color 0.3s, text-decoration-color 0.3s;
}
.prose-chapter a:hover {
    color: rgba(77, 111, 255, 1);
    text-decoration-color: rgba(77, 111, 255, 0.6);
}
.prose-chapter br {
    display: block !important;
}
.prose-chapter hr {
    display: block !important;
    border: none;
    border-top: 1px solid rgb(var(--tus-white-rgb) / 0.1);
    margin: 2em 0;
}

.narrative-word {
    display: inline;
    will-change: opacity;
}

.hero-word {
    will-change: transform, opacity;
}

/* Portfolio project — view transition names */
@supports (view-transition-name: project) {
    .narrative-chapter {
        view-transition-name: var(--vt-name, none);
    }
}

/* ============================================
   GLOBAL FLUID MICRO-ANIMATIONS
   ============================================ */

/* --- Smooth link/button magnetic glow on hover --- */
a.group:hover .relative,
button.group:hover .relative {
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

/* --- Glass card shimmer — disabled --- */

/* --- Smooth focus glow on form inputs --- */
input:focus,
textarea:focus,
select:focus {
    transition: border-color 0.4s ease, box-shadow 0.4s ease, background 0.4s ease;
}

/* --- Page-enter fade --- */
@keyframes pageEnter {
    from {
        opacity: 0;
        transform: translateY(20px);
        filter: blur(4px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
        filter: blur(0);
    }
}

[id="main-content"],
main,
.min-h-screen {
    animation: pageEnter 0.6s cubic-bezier(0.16, 1, 0.3, 1) both;
}

/* --- Floating gradient orb pulse --- */
@keyframes orbFloat {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    33% {
        transform: translate(15px, -20px) scale(1.05);
    }
    66% {
        transform: translate(-10px, 10px) scale(0.97);
    }
}

.parallax-slow {
    will-change: transform;
    animation: orbFloat 20s ease-in-out infinite;
}

/* --- Smooth scroll-linked gradient shift on background --- */
@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.text-gradient-animated {
    background-size: 200% auto;
    animation: gradientShift 4s ease-in-out infinite;
}

/* --- FAQ smooth accordion --- */
.faq-item .faq-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s cubic-bezier(0.16, 1, 0.3, 1),
                opacity 0.4s ease;
    opacity: 0;
}

.faq-item.open .faq-content {
    max-height: 500px;
    opacity: 1;
}

.faq-item .faq-icon {
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.faq-item.open .faq-icon {
    transform: rotate(180deg);
}

/* --- Button hover lift with glow trail --- */
.btn-cta-primary,
[class*="bg-tus-blue"][class*="rounded"] button,
button[type="submit"] {
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1),
                box-shadow 0.4s ease;
}

/* --- Stagger-children delay calculation via CSS --- */
.stagger-children.active > *:nth-child(1) { transition-delay: 0s; }
.stagger-children.active > *:nth-child(2) { transition-delay: 0.08s; }
.stagger-children.active > *:nth-child(3) { transition-delay: 0.16s; }
.stagger-children.active > *:nth-child(4) { transition-delay: 0.24s; }
.stagger-children.active > *:nth-child(5) { transition-delay: 0.32s; }
.stagger-children.active > *:nth-child(6) { transition-delay: 0.40s; }
.stagger-children.active > *:nth-child(7) { transition-delay: 0.48s; }
.stagger-children.active > *:nth-child(8) { transition-delay: 0.56s; }
.stagger-children.active > *:nth-child(9) { transition-delay: 0.64s; }
.stagger-children.active > *:nth-child(10) { transition-delay: 0.72s; }
.stagger-children.active > *:nth-child(11) { transition-delay: 0.80s; }
.stagger-children.active > *:nth-child(12) { transition-delay: 0.88s; }

/* --- Prefers reduced motion override --- */
@media (prefers-reduced-motion: reduce) {
    .parallax-slow {
        animation: none !important;
    }
    .suspense-divider .divider-spark,
    .suspense-divider .divider-spark-right,
    .suspense-divider .divider-shockwave,
    .suspense-divider .divider-echo,
    .suspense-divider .divider-orb,
    .suspense-divider .divider-glow,
    .suspense-divider .divider-sparks,
    .suspense-divider .divider-line-left,
    .suspense-divider .divider-line-right {
        animation: none !important;
        transition: none !important;
    }
    .suspense-divider.active .divider-track { transform: scaleX(1); }
    .suspense-divider.active .divider-orb { opacity: 1; transform: translate(-50%,-50%) scale(1); }
    .suspense-divider.active .divider-glow { opacity: 1; transform: translate(-50%,-50%) scale(1); }
    .suspense-divider.active .divider-field { opacity: 1; }
    .suspense-divider.active .divider-line-left,
    .suspense-divider.active .divider-line-right { width: 42%; opacity: 1; }
    .suspense-divider.active .divider-label { opacity: 1; transform: translate(-50%,0); }
    .suspense-divider.active .divider-label span { letter-spacing: 0.35em; }
    .card-tilt::after,
    .glass-card::before {
        display: none;
    }
    .text-shimmer { animation: none !important; }
    .chapter-accent { height: 64px !important; transition: none !important; }
    .timeline-pulse { animation: none !important; display: none; }
    .code-scanline::after { animation: none !important; }
    .scroll-capsule::before { animation: none !important; }
    .grain-overlay::after { display: none; }
    .hero-glow-cursor { display: none !important; }
    .gallery-tilt { transform: none !important; }
    .success-glow { opacity: 1 !important; transition: none !important; }
    [id="main-content"],
    main,
    .min-h-screen {
        animation: none !important;
    }
}

/* ============================================
   TRANSITION-DELAY UTILITY CLASSES
   Replaces inline style="transition-delay: X.Xs;"
   to allow removal of 'unsafe-inline' from CSP_STYLE_SRC
   ============================================ */
.td-050  { transition-delay: 0.05s; }
.td-100  { transition-delay: 0.1s; }
.td-150  { transition-delay: 0.15s; }
.td-200  { transition-delay: 0.2s; }
.td-250  { transition-delay: 0.25s; }
.td-300  { transition-delay: 0.3s; }
.td-350  { transition-delay: 0.35s; }
.td-400  { transition-delay: 0.4s; }
.td-450  { transition-delay: 0.45s; }
.td-500  { transition-delay: 0.5s; }
.td-550  { transition-delay: 0.55s; }
.td-600  { transition-delay: 0.6s; }
.td-650  { transition-delay: 0.65s; }
.td-700  { transition-delay: 0.7s; }
.td-750  { transition-delay: 0.75s; }
.td-800  { transition-delay: 0.8s; }

/* ============================================
   INLINE BACKGROUND REPLACEMENTS
   ============================================ */
.bg-badge-gradient {
    background: linear-gradient(180deg, rgba(11,45,255,0.04) 0%, rgba(11,45,255,0.12) 40%, rgba(11,45,255,0.06) 70%, transparent 100%);
}

.bg-divider-line-left-blue {
    background: linear-gradient(270deg, rgba(77,111,255,0.6), rgba(11,45,255,0.15), transparent);
}

.bg-divider-line-right-blue {
    background: linear-gradient(90deg, rgba(77,111,255,0.6), rgba(11,45,255,0.15), transparent);
}

.bg-divider-line-left-green {
    background: linear-gradient(270deg, rgba(74,222,128,0.6), rgba(34,197,94,0.15), transparent);
}

.bg-divider-line-right-green {
    background: linear-gradient(90deg, rgba(74,222,128,0.6), rgba(34,197,94,0.15), transparent);
}

.bg-divider-spark-blue {
    background: radial-gradient(circle, #4D6FFF 0%, rgba(11,45,255,0.6) 40%, transparent 70%);
    filter: blur(0.5px);
}

.bg-divider-glow-blue {
    background: radial-gradient(circle, rgba(11,45,255,0.18) 0%, rgba(11,45,255,0.06) 40%, transparent 70%);
}

.bg-divider-orb-blue {
    background: #4D6FFF;
    box-shadow: 0 0 12px 4px rgba(11,45,255,0.5), 0 0 40px 12px rgba(11,45,255,0.25), 0 0 80px 24px rgba(11,45,255,0.1);
}

.bg-divider-orb-green {
    background: #4ADE80;
    box-shadow: 0 0 12px 4px rgba(34,197,94,0.5), 0 0 40px 12px rgba(34,197,94,0.25), 0 0 80px 24px rgba(34,197,94,0.1);
}

.bg-dot-indicator {
    background: rgb(var(--tus-white-rgb) / 0.2);
}

.spark-size {
    width: 2px;
    height: 2px;
}

.chapter-accent-blue {
    --accent: rgba(11,45,255,0.6);
}

.chapter-accent-green {
    --accent: rgba(34,197,94,0.6);
}

.bg-divider-spark-green {
    background: radial-gradient(circle, #4ADE80 0%, rgba(34,197,94,0.6) 40%, transparent 70%);
    filter: blur(0.5px);
}

.bg-divider-glow-green {
    background: radial-gradient(circle, rgba(34,197,94,0.18) 0%, rgba(34,197,94,0.06) 40%, transparent 70%);
}

.spark-2   { width: 2px; height: 2px; }
.spark-1-5 { width: 1.5px; height: 1.5px; }
.spark-1   { width: 1px; height: 1px; }

/* Hero word animation — initial hidden state (replaces inline style) */
.hero-word-init {
    transform: translateY(110%);
    opacity: 0;
}
/* Hero word animation — revealed state */
.hero-word-reveal {
    transform: translateY(0);
    opacity: 1;
}

/* Dropzone content hidden (toggle via JS class) */
.dropzone-content-hidden { display: none; }

.scroll-progress-init {
    transform: scaleX(0);
    will-change: transform;
}

.svg-back-arrow {
    vertical-align: middle;
    margin-right: 4px;
}

/* ============================================
   CLIENT PORTAL INLINE STYLE REPLACEMENTS
   ============================================ */
.doc-type-badge-devis   { background: rgba(11,45,255,0.15); color: #4D6FFF; }
.doc-type-badge-facture { background: rgba(34,197,94,0.15); color: #4ADE80; }
.doc-type-badge-contract { background: rgba(245,158,11,0.15); color: #FCD34D; }

.doc-filter-bar { display: flex; gap: 8px; margin-bottom: 20px; flex-wrap: wrap; }

.col-qty   { width: 80px; }
.col-price { width: 140px; }
.col-vat   { width: 90px; }
.col-total { width: 140px; }

.mt-6 { margin-top: 1.5rem; }

.dropzone-preview-hidden { display: none; }

.success-svg-mb { margin-bottom: 0.5rem; }
.success-title  { margin: 0; font-weight: 600; }
.success-sub    { margin: 0.25rem 0 0; font-size: 0.85rem; opacity: 0.8; }

/* Admin email bulk page */
.bulk-heading  { margin-bottom: 10px; }
.bulk-subtitle { color: #666; margin-bottom: 30px; }
.bulk-submit-group { margin-top: 30px; }

/* ============================================
   THEME TOGGLE — Premium Pill Switch
   ============================================ */
.theme-toggle-pill {
    cursor: pointer;
    background: none;
    border: none;
    padding: 0;
    display: inline-flex;
    align-items: center;
    min-height: 28px;
    min-width: 44px;
}

.theme-toggle-track {
    display: flex;
    align-items: center;
    width: 44px;
    height: 24px;
    border-radius: 12px;
    background: rgba(246, 247, 251, 0.12);
    border: 1px solid rgba(246, 247, 251, 0.15);
    position: relative;
    transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.2);
}

.theme-toggle-pill:hover .theme-toggle-track {
    background: rgba(246, 247, 251, 0.18);
    border-color: rgba(11, 45, 255, 0.4);
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.2), 0 0 8px rgba(11, 45, 255, 0.2);
}

.theme-toggle-thumb {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: linear-gradient(135deg, #0B2DFF 0%, #2D5BFF 100%);
    box-shadow: 0 1px 4px rgba(11, 45, 255, 0.4);
    position: absolute;
    left: 1px;
    top: 1px;
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), background 0.3s ease;
    color: #FFFFFF;
}

.theme-toggle-thumb.translate-x-5 {
    transform: translateX(20px);
}

/* ── Transitions douces entre thèmes ── */
body,
#navbar,
footer,
.card-premium,
.glass-card,
.bento-item,
.client-sidebar,
.faq-item,
input, textarea, select {
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}