/* ============================================
   MadaIA Solutions — Design System
   Aesthetic: Dark African Tech / Bold & Clean
   ============================================ */

:root {
    --green: #00E676;
    --green-dim: #00C853;
    --green-glow: rgba(0, 230, 118, 0.15);
    --dark: #080C0A;
    --dark-2: #0F1612;
    --dark-3: #162019;
    --surface: #1A2820;
    --surface-2: #1F3028;
    --border: rgba(0, 230, 118, 0.15);
    --text: #E8F5E9;
    --text-dim: #7A9E85;
    --text-muted: #4A6B52;
    --white: #FFFFFF;
    --font-display: 'Syne', sans-serif;
    --font-mono: 'Space Mono', monospace;
    --radius: 4px;
    --radius-lg: 12px;
    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html { scroll-behavior: smooth; }

body {
    background: var(--dark);
    color: var(--text);
    font-family: var(--font-mono);
    font-size: 15px;
    line-height: 1.7;
    overflow-x: hidden;
}

/* ---- SCROLLBAR ---- */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--dark); }
::-webkit-scrollbar-thumb { background: var(--green); border-radius: 2px; }

/* ---- SELECTION ---- */
::selection { background: var(--green); color: var(--dark); }

/* ============ NAVBAR ============ */
.navbar {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    padding: 20px 0;
    background: transparent;
    transition: background var(--transition), padding var(--transition);
    border-bottom: 1px solid transparent;
}
.navbar.scrolled {
    background: rgba(8, 12, 10, 0.95);
    backdrop-filter: blur(20px);
    padding: 14px 0;
    border-bottom-color: var(--border);
}
.nav-container {
    max-width: 1200px; margin: 0 auto;
    padding: 0 32px;
    display: flex; align-items: center; justify-content: space-between;
}
.nav-logo {
    text-decoration: none;
    font-family: var(--font-display);
    font-weight: 800; font-size: 20px;
    letter-spacing: -0.5px;
}
.logo-mada { color: var(--text); }
.logo-ia { color: var(--green); }
.logo-solutions {
    color: var(--text-dim); font-size: 13px;
    font-weight: 400; margin-left: 4px;
    vertical-align: middle;
    font-family: var(--font-mono);
}
.nav-links {
    display: flex; align-items: center; gap: 32px;
}
.nav-link {
    color: var(--text-dim); text-decoration: none;
    font-size: 13px; letter-spacing: 0.05em;
    transition: color var(--transition);
    position: relative;
}
.nav-link::after {
    content: ''; position: absolute; bottom: -4px; left: 0; right: 0;
    height: 1px; background: var(--green);
    transform: scaleX(0); transition: transform var(--transition);
    transform-origin: left;
}
.nav-link:hover { color: var(--text); }
.nav-link:hover::after, .nav-link.active::after { transform: scaleX(1); }
.nav-link.active { color: var(--text); }
.nav-cta {
    background: var(--green); color: var(--dark) !important;
    padding: 8px 18px; border-radius: var(--radius);
    font-weight: 700; font-size: 12px; letter-spacing: 0.08em;
    transition: background var(--transition), transform var(--transition) !important;
}
.nav-cta::after { display: none; }
.nav-cta:hover { background: var(--green-dim); transform: translateY(-1px); }

/* Language toggle */
.lang-toggle { display: flex; align-items: center; gap: 6px; margin-left: 8px; }
.lang-btn {
    background: none; border: none; cursor: pointer;
    color: var(--text-muted); font-family: var(--font-mono);
    font-size: 11px; letter-spacing: 0.1em;
    transition: color var(--transition);
    padding: 0;
}
.lang-btn.active { color: var(--green); }
.lang-btn:hover { color: var(--text); }
.lang-sep { color: var(--text-muted); font-size: 11px; }

/* Hamburger */
.hamburger {
    display: none; flex-direction: column; gap: 5px;
    background: none; border: none; cursor: pointer; padding: 4px;
}
.hamburger span {
    width: 24px; height: 2px; background: var(--text);
    transition: transform var(--transition), opacity var(--transition);
}

/* ============ HERO ============ */
.hero {
    min-height: 100vh;
    display: flex; align-items: center;
    padding: 120px 32px 80px;
    position: relative; overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute; top: 0; right: -200px;
    width: 600px; height: 600px;
    background: radial-gradient(circle, rgba(0,230,118,0.08) 0%, transparent 70%);
    pointer-events: none;
}
.hero::after {
    content: '';
    position: absolute; bottom: -100px; left: -100px;
    width: 400px; height: 400px;
    background: radial-gradient(circle, rgba(0,230,118,0.05) 0%, transparent 70%);
    pointer-events: none;
}
/* Grid overlay */
.hero-grid {
    position: absolute; inset: 0;
    background-image:
        linear-gradient(rgba(0,230,118,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0,230,118,0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
}
.hero-container {
    max-width: 1200px; margin: 0 auto; width: 100%;
    position: relative; z-index: 1;
}
.hero-badge {
    display: inline-flex; align-items: center; gap: 8px;
    background: var(--green-glow); border: 1px solid var(--border);
    padding: 6px 14px; border-radius: 100px;
    font-size: 11px; letter-spacing: 0.12em; color: var(--green);
    margin-bottom: 32px;
    animation: fadeUp 0.6s ease both;
}
.hero-badge::before {
    content: ''; width: 6px; height: 6px;
    background: var(--green); border-radius: 50%;
    animation: pulse 2s infinite;
}
@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.8); }
}
.hero-title {
    font-family: var(--font-display);
    font-size: clamp(48px, 7vw, 88px);
    font-weight: 800; line-height: 1.0;
    letter-spacing: -2px;
    margin-bottom: 28px;
    animation: fadeUp 0.6s 0.1s ease both;
}
.hero-title .line-1 { color: var(--text); display: block; }
.hero-title .line-2 { color: var(--green); display: block; }
.hero-title .line-3 { color: var(--text-dim); display: block; font-size: 0.6em; font-weight: 600; }

.hero-description {
    max-width: 540px;
    color: var(--text-dim); font-size: 15px; line-height: 1.8;
    margin-bottom: 48px;
    animation: fadeUp 0.6s 0.2s ease both;
}
.hero-actions {
    display: flex; gap: 16px; flex-wrap: wrap;
    animation: fadeUp 0.6s 0.3s ease both;
}
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 14px 28px; border-radius: var(--radius);
    font-family: var(--font-mono); font-size: 13px;
    font-weight: 700; letter-spacing: 0.06em;
    cursor: pointer; transition: all var(--transition);
    text-decoration: none; border: none;
}
.btn-primary {
    background: var(--green); color: var(--dark);
}
.btn-primary:hover { background: var(--green-dim); transform: translateY(-2px); box-shadow: 0 8px 32px rgba(0,230,118,0.3); }
.btn-secondary {
    background: transparent; color: var(--text);
    border: 1px solid var(--border);
}
.btn-secondary:hover { border-color: var(--green); color: var(--green); transform: translateY(-2px); }

/* Hero stats */
.hero-stats {
    display: flex; gap: 48px; margin-top: 72px;
    padding-top: 48px; border-top: 1px solid var(--border);
    animation: fadeUp 0.6s 0.4s ease both;
}
.stat-item {}
.stat-number {
    font-family: var(--font-display); font-size: 36px;
    font-weight: 800; color: var(--green); line-height: 1;
    margin-bottom: 4px;
}
.stat-label { font-size: 11px; color: var(--text-muted); letter-spacing: 0.1em; }

/* ============ SECTIONS ============ */
section { padding: 100px 32px; }
.section-container { max-width: 1200px; margin: 0 auto; }
.section-label {
    display: inline-block;
    font-size: 11px; letter-spacing: 0.15em;
    color: var(--green); margin-bottom: 16px;
    font-weight: 700;
}
.section-title {
    font-family: var(--font-display);
    font-size: clamp(32px, 4vw, 52px);
    font-weight: 800; line-height: 1.1;
    letter-spacing: -1px; margin-bottom: 16px;
}
.section-subtitle {
    color: var(--text-dim); font-size: 15px;
    max-width: 520px; line-height: 1.8;
    margin-bottom: 64px;
}

/* ============ SERVICES CARDS ============ */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
}
.service-card {
    background: var(--dark-2);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    transition: all var(--transition);
    position: relative; overflow: hidden;
    cursor: pointer;
}
.service-card::before {
    content: ''; position: absolute;
    top: 0; left: 0; right: 0; height: 2px;
    background: var(--green);
    transform: scaleX(0); transition: transform var(--transition);
    transform-origin: left;
}
.service-card:hover { border-color: rgba(0,230,118,0.3); transform: translateY(-4px); }
.service-card:hover::before { transform: scaleX(1); }
.service-icon {
    font-size: 32px; margin-bottom: 24px; display: block;
}
.service-tag {
    display: inline-block; font-size: 10px; letter-spacing: 0.15em;
    color: var(--green); background: var(--green-glow);
    padding: 4px 10px; border-radius: 100px; margin-bottom: 16px;
    border: 1px solid var(--border);
}
.service-name {
    font-family: var(--font-display); font-size: 22px;
    font-weight: 700; margin-bottom: 12px; color: var(--text);
}
.service-desc { color: var(--text-dim); font-size: 14px; line-height: 1.7; margin-bottom: 24px; }
.service-price {
    font-family: var(--font-display); font-size: 18px;
    color: var(--green); font-weight: 700;
    border-top: 1px solid var(--border); padding-top: 20px;
}
.service-price span { font-size: 12px; color: var(--text-muted); font-family: var(--font-mono); font-weight: 400; }

/* ============ WHY ME ============ */
.why-section { background: var(--dark-2); }
.why-grid {
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 60px; align-items: center;
}
.why-list { display: flex; flex-direction: column; gap: 24px; }
.why-item {
    display: flex; gap: 20px; align-items: flex-start;
    padding: 24px; background: var(--surface);
    border: 1px solid var(--border); border-radius: var(--radius-lg);
    transition: border-color var(--transition);
}
.why-item:hover { border-color: rgba(0,230,118,0.3); }
.why-number {
    font-family: var(--font-display); font-size: 36px;
    font-weight: 800; color: var(--green-glow);
    line-height: 1; min-width: 48px;
    -webkit-text-stroke: 1px var(--green);
    color: transparent;
}
.why-text h4 { font-family: var(--font-display); font-size: 17px; font-weight: 700; margin-bottom: 6px; }
.why-text p { color: var(--text-dim); font-size: 13px; line-height: 1.7; }
.why-visual {
    position: relative; display: flex;
    justify-content: center; align-items: center;
}
.code-block {
    background: var(--dark-3); border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 32px;
    font-size: 13px; line-height: 1.8; width: 100%;
    position: relative; overflow: hidden;
}
.code-block::before {
    content: '● ● ●';
    display: block; color: var(--text-muted);
    font-size: 12px; letter-spacing: 6px;
    margin-bottom: 16px; padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
}
.code-line { display: block; }
.code-comment { color: var(--text-muted); }
.code-key { color: #82AAFF; }
.code-val { color: var(--green); }
.code-str { color: #F78C6C; }

/* ============ CTA SECTION ============ */
.cta-section {
    text-align: center;
    background: linear-gradient(135deg, var(--dark-2) 0%, var(--dark-3) 100%);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}
.cta-section .section-title { color: var(--text); }
.cta-section .section-subtitle { margin: 0 auto 40px; }

/* ============ FOOTER ============ */
.footer {
    background: var(--dark-2);
    border-top: 1px solid var(--border);
    padding: 60px 32px 0;
}
.footer-container {
    max-width: 1200px; margin: 0 auto;
    display: grid; grid-template-columns: 2fr 1fr 1fr;
    gap: 60px; padding-bottom: 48px;
}
.footer-brand .nav-logo { font-size: 22px; display: inline-flex; align-items: center; gap: 0; }
.footer-tagline { color: var(--text-muted); font-size: 13px; margin-top: 12px; }
.footer-links { display: flex; flex-direction: column; gap: 12px; }
.footer-links a { color: var(--text-dim); text-decoration: none; font-size: 13px; transition: color var(--transition); }
.footer-links a:hover { color: var(--green); }
.footer-newsletter p { font-size: 13px; color: var(--text-dim); margin-bottom: 12px; }
.newsletter-form { display: flex; gap: 8px; }
.newsletter-form input {
    flex: 1; background: var(--dark); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 10px 14px;
    color: var(--text); font-family: var(--font-mono); font-size: 13px;
    outline: none; transition: border-color var(--transition);
}
.newsletter-form input:focus { border-color: var(--green); }
.newsletter-form button {
    background: var(--green); color: var(--dark);
    border: none; border-radius: var(--radius);
    width: 40px; cursor: pointer; font-size: 18px; font-weight: 700;
    transition: background var(--transition);
}
.newsletter-form button:hover { background: var(--green-dim); }
.newsletter-msg { font-size: 12px; color: var(--green); margin-top: 8px; height: 16px; }
.footer-bottom {
    border-top: 1px solid var(--border); padding: 20px 0;
    text-align: center;
    color: var(--text-muted); font-size: 12px;
    max-width: 1200px; margin: 0 auto;
}

/* ============ FORMS ============ */
.form-group { margin-bottom: 20px; }
.form-label { display: block; font-size: 12px; letter-spacing: 0.1em; color: var(--text-dim); margin-bottom: 8px; }
.form-input, .form-textarea, .form-select {
    width: 100%; background: var(--dark);
    border: 1px solid var(--border); border-radius: var(--radius);
    padding: 12px 16px; color: var(--text);
    font-family: var(--font-mono); font-size: 14px;
    outline: none; transition: border-color var(--transition);
}
.form-input:focus, .form-textarea:focus, .form-select:focus { border-color: var(--green); }
.form-textarea { min-height: 120px; resize: vertical; }
.form-select { cursor: pointer; }
.form-select option { background: var(--dark-2); }
.form-msg { padding: 12px 16px; border-radius: var(--radius); font-size: 13px; margin-top: 16px; display: none; }
.form-msg.success { background: rgba(0,230,118,0.1); border: 1px solid var(--green); color: var(--green); display: block; }
.form-msg.error { background: rgba(255,82,82,0.1); border: 1px solid #FF5252; color: #FF5252; display: block; }

/* ============ ANIMATIONS ============ */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(24px); }
    to { opacity: 1; transform: translateY(0); }
}
.reveal {
    opacity: 0; transform: translateY(32px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ============ RESPONSIVE ============ */
@media (max-width: 768px) {
    .nav-links {
        position: fixed; top: 0; right: -100%; width: 280px; height: 100vh;
        background: var(--dark-2); border-left: 1px solid var(--border);
        flex-direction: column; justify-content: center; gap: 24px;
        padding: 40px; transition: right var(--transition);
        z-index: 999;
    }
    .nav-links.open { right: 0; }
    .hamburger { display: flex; z-index: 1001; }
    .hero { padding: 100px 24px 60px; }
    .hero-stats { gap: 32px; flex-wrap: wrap; }
    .why-grid { grid-template-columns: 1fr; }
    .why-visual { display: none; }
    .footer-container { grid-template-columns: 1fr; gap: 40px; }
    section { padding: 60px 24px; }
}