/* ========================================
   WAKINAH v2 | Design System
   ======================================== */

:root {
    --color-bg: #0A0A0A;
    --color-surface: #111111;
    --color-surface-elevated: #1A1A1A;
    --color-border: #262626;
    --color-border-light: #333333;
    --color-text: #E5E5E5;
    --color-text-muted: #888888;
    --color-text-dim: #555555;
    --color-accent: #C9A96E;
    --color-accent-hover: #D4B87A;
    --color-accent-dim: rgba(201, 169, 110, 0.15);

    --font-serif: 'Playfair Display', Georgia, serif;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

    --transition: cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --radius: 2px;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

::selection {
    background: var(--color-accent);
    color: var(--color-bg);
}

/* ========================================
   UTILITAIRES
   ======================================== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.hidden {
    display: none !important;
}

.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s var(--transition), transform 0.8s var(--transition);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ========================================
   BOUTONS
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    text-decoration: none;
    border: 1px solid transparent;
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.3s var(--transition);
    white-space: nowrap;
}

.btn-primary {
    background: var(--color-accent);
    color: var(--color-bg);
    border-color: var(--color-accent);
}

.btn-primary:hover {
    background: var(--color-accent-hover);
    border-color: var(--color-accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(201, 169, 110, 0.2);
}

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

.btn-outline:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
    transform: translateY(-2px);
}

.btn-full {
    width: 100%;
}

/* ========================================
   NAVIGATION
   ======================================== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 24px 0;
    transition: all 0.4s var(--transition);
    border-bottom: 1px solid transparent;
}

.nav.scrolled {
    background: rgba(10, 10, 10, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom-color: var(--color-border);
    padding: 16px 0;
}

.nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--color-text);
    text-decoration: none;
    letter-spacing: 0.1em;
    transition: color 0.3s;
}

.logo:hover {
    color: var(--color-accent);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 40px;
}

.nav-links a {
    font-size: 0.8125rem;
    font-weight: 400;
    color: var(--color-text-muted);
    text-decoration: none;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    transition: color 0.3s;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--color-accent);
    transition: width 0.3s var(--transition);
}

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

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 1.5px;
    background: var(--color-text);
    transition: all 0.3s;
}

/* ========================================
   HERO
   ======================================== */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 120px 24px 80px;
    position: relative;
    background: radial-gradient(ellipse at center, #141414 0%, var(--color-bg) 70%);
}

.hero-content {
    max-width: 800px;
    z-index: 2;
}

.hero-label {
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: 24px;
}

.hero-title {
    font-family: var(--font-serif);
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 400;
    line-height: 1.1;
    color: var(--color-text);
    margin-bottom: 28px;
}

.hero-title em {
    font-style: italic;
    color: var(--color-accent);
}

.hero-sub {
    font-size: 1.0625rem;
    font-weight: 300;
    color: var(--color-text-muted);
    line-height: 1.7;
    max-width: 600px;
    margin: 0 auto 40px;
}

.hero-cta {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--color-text-dim);
    font-size: 0.625rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
}

.hero-scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--color-text-dim), transparent);
    animation: scrollPulse 2s infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.3; transform: scaleY(1); }
    50% { opacity: 1; transform: scaleY(1.2); }
}

/* ========================================
   SECTIONS
   ======================================== */
.section {
    padding: 120px 0;
}

.section-tag {
    display: block;
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: 20px;
}

.section-title {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 400;
    line-height: 1.2;
    color: var(--color-text);
}

/* ========================================
   MISSIONS
   ======================================== */
.missions {
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.missions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1px;
    background: var(--color-border);
    margin-top: 60px;
}

.mission-card {
    background: var(--color-surface);
    padding: 48px 36px;
    position: relative;
    transition: background 0.4s;
    overflow: hidden;
}

.mission-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--color-accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.5s var(--transition);
}

.mission-card:hover {
    background: var(--color-surface-elevated);
}

.mission-card:hover::before {
    transform: scaleX(1);
}

.mission-num {
    position: absolute;
    top: 24px;
    right: 28px;
    font-family: var(--font-serif);
    font-size: 0.875rem;
    color: var(--color-text-dim);
    font-style: italic;
}

.mission-icon {
    width: 48px;
    height: 48px;
    color: var(--color-accent);
    margin-bottom: 24px;
}

.mission-icon svg {
    width: 100%;
    height: 100%;
}

.mission-card h3 {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 500;
    margin-bottom: 12px;
    color: var(--color-text);
}

.mission-card p {
    font-size: 0.9375rem;
    color: var(--color-text-muted);
    line-height: 1.7;
    font-weight: 300;
}

/* ========================================
   ÉCOSYSTÈME
   ======================================== */
.ecosystem {
    background: var(--color-bg);
}

.ecosystem-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
}

.ecosystem-left {
    position: sticky;
    top: 140px;
}

.ecosystem-lead {
    font-size: 1.0625rem;
    color: var(--color-text-muted);
    line-height: 1.8;
    margin-top: 24px;
    font-weight: 300;
}

.eco-item {
    display: flex;
    gap: 28px;
    padding: 28px 0;
    border-bottom: 1px solid var(--color-border);
    transition: all 0.3s;
}

.eco-item:first-child {
    border-top: 1px solid var(--color-border);
}

.eco-item:hover {
    padding-left: 12px;
}

.eco-item:hover .eco-num {
    color: var(--color-accent);
}

.eco-num {
    font-family: var(--font-serif);
    font-size: 0.875rem;
    color: var(--color-text-dim);
    font-style: italic;
    min-width: 30px;
    transition: color 0.3s;
}

.eco-content h4 {
    font-family: var(--font-serif);
    font-size: 1.125rem;
    font-weight: 500;
    margin-bottom: 6px;
    color: var(--color-text);
}

.eco-content p {
    font-size: 0.9375rem;
    color: var(--color-text-muted);
    font-weight: 300;
    line-height: 1.6;
}

/* ========================================
   APPROCHE
   ======================================== */
.approach {
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.approach-layout {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 80px;
    align-items: start;
}

.approach-left {
    position: sticky;
    top: 140px;
}

.approach-lead {
    font-size: 1.125rem;
    color: var(--color-text);
    line-height: 1.7;
    margin-bottom: 24px;
    font-weight: 400;
}

.approach-body {
    font-size: 1rem;
    color: var(--color-text-muted);
    line-height: 1.8;
    margin-bottom: 20px;
    font-weight: 300;
}

.approach-body strong {
    color: var(--color-text);
    font-weight: 500;
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
    background: var(--color-bg);
    border-top: 1px solid var(--color-border);
    padding: 60px 0 30px;
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 40px;
    flex-wrap: wrap;
    gap: 30px;
}

.footer-brand .logo {
    display: block;
    margin-bottom: 8px;
}

.footer-brand p {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    font-weight: 300;
}

.footer-links {
    display: flex;
    gap: 32px;
    flex-wrap: wrap;
}

.footer-links a {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: var(--color-accent);
}

.footer-bottom {
    border-top: 1px solid var(--color-border);
    padding-top: 24px;
    text-align: center;
}

.footer-bottom p {
    font-size: 0.75rem;
    color: var(--color-text-dim);
}

/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width: 900px) {
    .ecosystem-layout,
    .approach-layout {
        grid-template-columns: 1fr;
        gap: 60px;
    }

    .ecosystem-left,
    .approach-left {
        position: static;
    }

    .section {
        padding: 80px 0;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        max-width: 300px;
        height: 100vh;
        background: var(--color-surface);
        flex-direction: column;
        padding: 100px 40px;
        gap: 24px;
        transition: right 0.4s var(--transition);
        border-left: 1px solid var(--color-border);
    }

    .nav-links.open {
        right: 0;
    }

    .nav-toggle {
        display: flex;
        z-index: 1001;
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 280px;
    }

    .section {
        padding: 80px 0;
    }

    .missions-grid {
        grid-template-columns: 1fr;
    }

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

    .footer-links {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 100px 20px 60px;
    }
}