/* ============================================================
   QUICK LIB — DESIGN SYSTEM
   Variables, typographie, composants partagés
   ============================================================ */

/* Google Fonts — Inter */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

/* ============================================================
   TOKENS
   ============================================================ */
:root {
    /* Couleurs */
    --primary: #2563eb;
    --primary-dark: #1e40af;
    --primary-light: #dbeafe;
    --secondary: #7c3aed;
    --secondary-light: #ede9fe;
    --accent: #0ea5e9;
    --success: #10b981;
    --success-light: #d1fae5;
    --warning: #f59e0b;
    --error: #ef4444;

    /* Neutres */
    --dark: #0f172a;
    --dark-light: #1e293b;
    --gray-700: #334155;
    --gray-500: #64748b;
    --gray-300: #cbd5e1;
    --gray-100: #f1f5f9;
    --gray-50: #f8fafc;
    --white: #ffffff;

    /* Gradient signature */
    --gradient: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    --gradient-subtle: linear-gradient(135deg, #eff6ff 0%, #f5f3ff 100%);

    /* Typographie */
    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;

    /* Espacements */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;

    /* Rayons */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Ombres */
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.04);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.08), 0 2px 6px rgba(0,0,0,0.04);
    --shadow-lg: 0 10px 40px rgba(0,0,0,0.1), 0 4px 12px rgba(0,0,0,0.05);
    --shadow-primary: 0 8px 30px rgba(37, 99, 235, 0.25);
    --shadow-secondary: 0 8px 30px rgba(124, 58, 237, 0.25);

    /* Transitions */
    --transition: 0.2s ease;
    --transition-slow: 0.4s ease;

    /* Layout */
    --max-width: 1200px;
    --nav-height: 70px;
}

/* ============================================================
   RESET & BASE
   ============================================================ */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    color-scheme: light only;
    overflow-x: hidden;
}

body {
    font-family: var(--font);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--dark);
    background: var(--white);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
}

ul, ol {
    list-style: none;
}

/* ============================================================
   TYPOGRAPHIE
   ============================================================ */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--dark);
}

h1 { font-size: clamp(2rem, 5vw, var(--font-size-5xl)); }
h2 { font-size: clamp(1.5rem, 3vw, var(--font-size-4xl)); }
h3 { font-size: clamp(1.125rem, 2vw, var(--font-size-2xl)); }
h4 { font-size: var(--font-size-xl); }

p {
    color: var(--gray-500);
    line-height: 1.7;
}

/* ============================================================
   BOUTONS
   ============================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: 0.75rem 1.75rem;
    border-radius: var(--radius-md);
    font-family: var(--font);
    font-size: var(--font-size-base);
    font-weight: 600;
    line-height: 1;
    text-decoration: none;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all var(--transition);
    white-space: nowrap;
}

.btn-primary {
    background: var(--gradient);
    color: var(--white);
    box-shadow: var(--shadow-primary);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 35px rgba(37, 99, 235, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    border-color: rgba(255,255,255,0.4);
}

.btn-secondary:hover {
    background: rgba(255,255,255,0.1);
    border-color: rgba(255,255,255,0.7);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border-color: var(--primary);
}

.btn-outline:hover {
    background: var(--primary);
    color: var(--white);
    transform: translateY(-2px);
}

.btn-ghost {
    background: var(--gray-100);
    color: var(--dark);
    border-color: transparent;
}

.btn-ghost:hover {
    background: var(--gray-300);
    transform: translateY(-2px);
}

.btn-lg {
    padding: 1rem 2.25rem;
    font-size: var(--font-size-lg);
}

.btn-sm {
    padding: 0.5rem 1.25rem;
    font-size: var(--font-size-sm);
    border-radius: var(--radius-sm);
}

/* ============================================================
   LAYOUT
   ============================================================ */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-8);
}

.section {
    padding: var(--space-24) var(--space-8);
    max-width: var(--max-width);
    margin: 0 auto;
}

.section-alt {
    background: var(--gray-50);
}

.section-dark {
    background: var(--dark);
    color: var(--white);
}

.section-dark p {
    color: rgba(255,255,255,0.7);
}

.section-dark h2,
.section-dark h3 {
    color: var(--white);
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-16);
    max-width: 680px;
    margin-left: auto;
    margin-right: auto;
}

.section-header h2 {
    margin-bottom: var(--space-4);
}

.section-eyebrow {
    display: inline-block;
    font-size: var(--font-size-sm);
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--primary);
    background: var(--primary-light);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    margin-bottom: var(--space-4);
}

/* ============================================================
   CARTES
   ============================================================ */
.card {
    background: var(--white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-100);
    padding: var(--space-8);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
}

.card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
    border-color: var(--gray-300);
}

.card-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-md);
    background: var(--gradient-subtle);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-6);
    color: var(--primary);
}

.card-icon svg {
    width: 24px;
    height: 24px;
}

/* ============================================================
   BADGES / TAGS
   ============================================================ */
.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 600;
    letter-spacing: 0.03em;
}

.badge-primary {
    background: var(--primary-light);
    color: var(--primary-dark);
}

.badge-secondary {
    background: var(--secondary-light);
    color: var(--secondary);
}

.badge-success {
    background: var(--success-light);
    color: #065f46;
}

.badge-dark {
    background: var(--dark-light);
    color: var(--white);
}

.badge-gray {
    background: var(--gray-100);
    color: var(--gray-700);
}

/* ============================================================
   NAVIGATION PRINCIPALE
   ============================================================ */
#ql-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 9999;
    background: rgba(15, 23, 42, 0.97);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(255,255,255,0.08);
    transition: background var(--transition);
}

.ql-nav-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-8);
    height: var(--nav-height);
    display: flex;
    align-items: center;
    gap: var(--space-6);
}

.ql-nav-logo img {
    height: 46px;
    width: auto;
}

.ql-nav-links {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: space-evenly;
    list-style: none;
    margin: 0;
    padding: 0;
}

.ql-nav-right {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    flex-shrink: 0;
}

.ql-nav-links a {
    color: rgba(255,255,255,0.8);
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: color var(--transition);
    position: relative;
}

.ql-nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient);
    border-radius: 2px;
    transition: width var(--transition);
}

.ql-nav-links a:hover {
    color: var(--white);
}

.ql-nav-links a:hover::after {
    width: 100%;
}

.ql-nav-links a.active {
    color: var(--white);
}

.ql-nav-links a.active::after {
    width: 100%;
}

.ql-nav-cta {
    background: var(--gradient) !important;
    color: var(--white) !important;
    padding: 0.55rem 1.25rem;
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(37,99,235,0.3);
    transition: all var(--transition);
    white-space: nowrap;
}

.ql-nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(37,99,235,0.4) !important;
}

.ql-nav-cta::after {
    display: none !important;
}

/* CTA dans le menu mobile — masqué sur desktop */
.ql-nav-menu-cta {
    display: none;
}

.ql-nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-2);
    width: 36px;
    height: 36px;
}

.ql-nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--white);
    border-radius: 2px;
    transition: all var(--transition);
    transform-origin: center;
}

/* X animation when menu is open */
.ql-nav-toggle.open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.ql-nav-toggle.open span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}
.ql-nav-toggle.open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ============================================================
   PAGE HERO COMMUN
   ============================================================ */
.page-hero {
    padding: calc(var(--nav-height) + var(--space-20)) var(--space-8) var(--space-16);
    background: var(--gradient);
    color: var(--white);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.page-hero-content {
    position: relative;
    max-width: 700px;
    margin: 0 auto;
}

.page-hero h1 {
    color: var(--white);
    margin-bottom: var(--space-4);
}

.page-hero p {
    color: rgba(255,255,255,0.85);
    font-size: var(--font-size-lg);
    max-width: 560px;
    margin: 0 auto;
}

/* ============================================================
   FOOTER
   ============================================================ */
#ql-footer {
    background: var(--dark);
    color: var(--white);
    padding: var(--space-16) var(--space-8) var(--space-8);
}

.footer-grid {
    max-width: var(--max-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-12);
    padding-bottom: var(--space-12);
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-brand img {
    height: 46px;
    width: auto;
    margin-bottom: var(--space-4);
}

.footer-brand p {
    color: rgba(255,255,255,0.5);
    font-size: var(--font-size-sm);
    line-height: 1.6;
    margin-bottom: var(--space-6);
}

.footer-social {
    display: flex;
    gap: var(--space-3);
}

.footer-social a {
    width: 38px;
    height: 38px;
    border-radius: var(--radius-md);
    background: rgba(255,255,255,0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255,255,255,0.6);
    transition: all var(--transition);
}

.footer-social a:hover {
    background: var(--primary);
    color: var(--white);
    transform: translateY(-2px);
}

.footer-col h4 {
    color: var(--white);
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: var(--space-6);
}

.footer-col ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.footer-col ul li a {
    color: rgba(255,255,255,0.5);
    font-size: var(--font-size-sm);
    transition: color var(--transition);
}

.footer-col ul li a:hover {
    color: var(--white);
}

.footer-bottom {
    max-width: var(--max-width);
    margin: 0 auto;
    padding-top: var(--space-8);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-4);
    flex-wrap: wrap;
}

.footer-bottom p {
    color: rgba(255,255,255,0.35);
    font-size: var(--font-size-xs);
}

.footer-bottom-links {
    display: flex;
    gap: var(--space-6);
}

.footer-bottom-links a {
    color: rgba(255,255,255,0.35);
    font-size: var(--font-size-xs);
    transition: color var(--transition);
}

.footer-bottom-links a:hover {
    color: rgba(255,255,255,0.7);
}

/* ============================================================
   ANIMATIONS AU SCROLL
   ============================================================ */
.fade-in {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.fade-in-delay-1 { transition-delay: 0.1s; }
.fade-in-delay-2 { transition-delay: 0.2s; }
.fade-in-delay-3 { transition-delay: 0.3s; }
.fade-in-delay-4 { transition-delay: 0.4s; }
.fade-in-delay-5 { transition-delay: 0.5s; }

/* ============================================================
   UTILITAIRES
   ============================================================ */
.text-center { text-align: center; }
.text-gradient {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.divider {
    width: 48px;
    height: 4px;
    background: var(--gradient);
    border-radius: 2px;
    margin: var(--space-4) auto var(--space-6);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-8);
    }
    .footer-brand {
        grid-column: 1 / -1;
    }
}

@media (max-width: 768px) {
    :root {
        --nav-height: 64px;
    }

    .ql-nav-links {
        display: none;
        position: fixed;
        top: var(--nav-height);
        left: 0;
        width: 100%;
        flex-direction: column;
        background: rgba(15, 23, 42, 0.99);
        padding: var(--space-6) var(--space-8);
        gap: var(--space-6);
        border-bottom: 1px solid rgba(255,255,255,0.08);
        align-items: flex-start;
        justify-content: flex-start;
        z-index: 9998;
    }

    .ql-nav-links.open {
        display: flex;
    }

    .ql-nav-links a {
        font-size: var(--font-size-base);
    }

    .ql-nav-inner {
        position: relative;
        justify-content: flex-start;
    }

    .ql-nav-logo {
        position: absolute;
        left: 50%;
        transform: translateX(-50%);
        z-index: 1;
    }

    .ql-nav-right {
        order: -1;
        margin-left: 0;
    }

    .ql-nav-toggle {
        display: flex;
    }

    .ql-nav-cta {
        display: none;
    }

    /* Afficher le CTA en bas du dropdown mobile */
    .ql-nav-menu-cta {
        display: block;
        width: 100%;
        padding-top: var(--space-4);
        margin-top: var(--space-2);
        border-top: 1px solid rgba(255,255,255,0.1);
    }

    .ql-nav-menu-cta .ql-nav-cta {
        display: flex;
        justify-content: center;
        width: 100%;
        border-radius: var(--radius-md);
        text-align: center;
    }

    .section {
        padding: var(--space-16) var(--space-6);
    }

    .container {
        padding: 0 var(--space-6);
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--space-8);
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }

    .page-hero {
        padding: calc(var(--nav-height) + var(--space-12)) var(--space-6) var(--space-12);
    }
}

@media (max-width: 480px) {
    .btn-lg {
        padding: 0.875rem 1.5rem;
        font-size: var(--font-size-base);
    }
}