/* 
  TECHLEARN SARL - Global Styles & Design System
  Colors: Deep Blue, Gold, Premium Black, Cyan, Coral Red
  Typography: Outfit (Headings), Inter (Body)
*/

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800&display=swap');

:root {
    /* Colors */
    --primary: #0A0A0B;
    --primary-light: #18181B;
    --accent-coral: #FF5F5F;
    --accent-coral-glow: rgba(255, 95, 95, 0.2);
    --accent-emerald: #10B981;
    --accent-emerald-glow: rgba(16, 185, 129, 0.2);
    
    --bg-dark: #0A0A0B;
    --bg-light: #F8FAFC;
    --bg-white: #FFFFFF;
    
    --text-main: #0F172A;
    --text-muted: #64748B;
    --text-white: #FFFFFF;
    --border-color: #E2E8F0;

    /* Glassmorphism Refined */
    --glass-bg: rgba(15, 23, 42, 0.03);
    --glass-border: rgba(15, 23, 42, 0.08);
    --glass-blur: blur(20px);

    /* Spacing & Layout */
    --section-padding: 120px 5%;
    --container-max-width: 1300px;

    /* Transitions & Curves */
    --transition-smooth: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-bounce: all 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-white);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
    line-height: 1.2;
    color: var(--primary);
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-smooth);
}

ul {
    list-style: none;
}

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

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}
::-webkit-scrollbar-track {
    background: var(--bg-light);
}
::-webkit-scrollbar-thumb {
    background: var(--text-muted);
    border-radius: 5px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--accent-coral);
}

/* Utility Classes */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: var(--section-padding);
}

.text-gradient {
    background: linear-gradient(135deg, #FFFFFF, var(--accent-coral));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.text-gradient-dark {
    background: linear-gradient(135deg, var(--primary), var(--accent-coral));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    border-radius: 8px;
    font-weight: 600;
    font-family: 'Outfit', sans-serif;
    cursor: pointer;
    transition: var(--transition-smooth);
    gap: 8px;
    border: none;
}

.btn-primary {
    background-color: var(--accent-coral);
    color: var(--text-white);
}

.btn-primary:hover {
    background-color: #e54e4e;
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 15px 30px var(--accent-coral-glow);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
}

.btn-outline:hover {
    background-color: var(--primary);
    color: var(--text-white);
    transform: translateY(-4px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
}

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

.btn-white:hover {
    transform: translateY(-4px);
    box-shadow: 0 15px 30px rgba(255,255,255,0.2);
}

.glass-card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 40px;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(15, 23, 42, 0.03);
}

.glass-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent-coral);
    box-shadow: 0 30px 60px rgba(15, 23, 42, 0.08);
}

/* Animations */
.reveal, .reveal-left, .reveal-right, .reveal-up {
    opacity: 0;
    filter: blur(10px);
    transition: opacity 1s cubic-bezier(0.16, 1, 0.3, 1),
                transform 1.2s cubic-bezier(0.16, 1, 0.3, 1),
                filter 1s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal { transform: translateY(50px); }
.reveal-left { transform: translateX(-60px); }
.reveal-right { transform: translateX(60px); }
.reveal-up { transform: translateY(-50px); }

.reveal.active, .reveal-left.active, .reveal-right.active, .reveal-up.active {
    opacity: 1;
    transform: translate(0, 0);
    filter: blur(0);
}

/* Floating Animation */
@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-12px); }
}

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

/* Background Overlays */
.bg-immersive {
    position: relative;
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    overflow: hidden;
}

.bg-immersive::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(10, 10, 11, 0.85), rgba(24, 24, 27, 0.75));
    z-index: 1;
}

.bg-immersive .container {
    position: relative;
    z-index: 2;
}

/* Header & Navigation */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 0;
    transition: var(--transition-smooth);
    background: var(--primary);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

header.scrolled {
    background: rgba(10, 10, 11, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 15px 0;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo img {
    height: 50px;
    width: auto;
    object-fit: contain;
}

.nav-links {
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav-links a {
    font-weight: 500;
    font-size: 15px;
    color: rgba(255, 255, 255, 0.8);
    position: relative;
}

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

.nav-links a.active-link {
    color: var(--accent-coral);
    font-weight: 600;
}

/* Language Switcher */
.lang-switcher {
    display: flex;
    gap: 8px;
    background: rgba(255, 255, 255, 0.1);
    padding: 4px 8px;
    border-radius: 20px;
    align-items: center;
}

.lang-btn {
    border: none;
    background: transparent;
    color: white;
    cursor: pointer;
    font-size: 12px;
    font-weight: 600;
    padding: 4px 8px;
    border-radius: 12px;
    transition: var(--transition-smooth);
}

.lang-btn.active {
    background: var(--accent-coral);
    color: white;
}

/* Mobile Nav Toggle */
.mobile-toggle {
    display: none;
    cursor: pointer;
    color: var(--text-white);
}

/* Floating CTA Button */
.floating-cta {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background-color: var(--accent-coral);
    color: var(--text-white);
    padding: 15px 25px;
    border-radius: 50px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
    font-size: 15px;
    z-index: 999;
    box-shadow: 0 10px 30px var(--accent-coral-glow);
    transition: var(--transition-bounce);
}

.floating-cta:hover {
    transform: scale(1.05) translateY(-5px);
    background-color: #e54e4e;
    box-shadow: 0 15px 40px rgba(255, 95, 95, 0.5);
}

/* Portfolio Filters */
.filter-btn-group {
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
    margin-bottom: 50px;
}

.filter-btn {
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    padding: 10px 20px;
    border-radius: 30px;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: var(--transition-smooth);
    color: var(--text-main);
}

.filter-btn.active, .filter-btn:hover {
    background: var(--accent-coral);
    color: white;
    border-color: var(--accent-coral);
    box-shadow: 0 10px 20px var(--accent-coral-glow);
}

.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 40px;
}

.project-card {
    border-radius: 20px;
    overflow: hidden;
    background: white;
    border: 1px solid var(--border-color);
    box-shadow: 0 10px 30px rgba(0,0,0,0.02);
    transition: var(--transition-smooth);
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 30px 60px rgba(0,0,0,0.08);
    border-color: var(--accent-coral);
}

.project-card-image {
    height: 240px;
    background: linear-gradient(135deg, var(--primary), var(--accent-coral));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    position: relative;
    overflow: hidden;
}

.project-card-image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.4);
    opacity: 0;
    transition: var(--transition-smooth);
}

.project-card:hover .project-card-image::after {
    opacity: 1;
}

.project-card-link-icon {
    position: absolute;
    z-index: 2;
    opacity: 0;
    transform: translateY(20px);
    transition: var(--transition-smooth);
    background: white;
    color: var(--primary);
    padding: 12px;
    border-radius: 50%;
}

.project-card:hover .project-card-link-icon {
    opacity: 1;
    transform: translateY(0);
}

.project-card-content {
    padding: 30px;
}

/* Interactive Quote Estimator */
.quote-container {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 40px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.05);
}

.quote-option-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.quote-option-card {
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.quote-option-card:hover {
    border-color: var(--accent-coral);
    background: rgba(255,95,95,0.02);
}

.quote-option-card.selected {
    border-color: var(--accent-coral);
    background: rgba(255,95,95,0.05);
    box-shadow: 0 10px 20px var(--accent-coral-glow);
}

.quote-total {
    background: var(--primary);
    color: white;
    padding: 25px;
    border-radius: 12px;
    text-align: center;
    margin-top: 30px;
}

.quote-total h4 {
    color: var(--accent-coral);
    font-size: 32px;
    margin-top: 10px;
}

/* Blog Layout */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-top: 50px;
}

.blog-card {
    border-radius: 20px;
    overflow: hidden;
    background: white;
    border: 1px solid var(--border-color);
    transition: var(--transition-smooth);
    box-shadow: 0 10px 30px rgba(0,0,0,0.02);
}

.blog-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 35px 70px rgba(0,0,0,0.06);
    border-color: var(--accent-coral);
}

.blog-card-image {
    height: 200px;
    background-size: cover;
    background-position: center;
}

.blog-card-content {
    padding: 30px;
}

.blog-meta {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 10px;
    display: flex;
    gap: 15px;
}

/* Interactive Admin / CMS Styles */
.admin-sidebar {
    background: var(--primary);
    color: white;
    padding: 40px 20px;
    min-height: 100vh;
}

.admin-nav li {
    margin-bottom: 15px;
}

.admin-nav a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    border-radius: 8px;
    color: rgba(255,255,255,0.7);
}

.admin-nav a:hover, .admin-nav a.active {
    background: rgba(255,255,255,0.1);
    color: white;
}

.admin-content {
    padding: 40px;
    background: var(--bg-light);
    min-height: 100vh;
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.02);
}

.admin-table th, .admin-table td {
    padding: 18px 24px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.admin-table th {
    background: #F1F5F9;
    font-weight: 600;
}

.admin-table tr:last-child td {
    border-bottom: none;
}

.status-badge {
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.status-badge.active {
    background: #DEF7EC;
    color: #03543F;
}

.status-badge.inactive {
    background: #FDE8E8;
    color: #9B1C1C;
}

/* Form Controls */
.form-group {
    display: grid;
    gap: 8px;
    margin-bottom: 20px;
}

.form-group label {
    font-weight: 600;
    font-size: 14px;
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-family: inherit;
    font-size: 15px;
    transition: var(--transition-smooth);
}

.form-control:focus {
    outline: none;
    border-color: var(--accent-coral);
    box-shadow: 0 0 0 3px rgba(255,95,95,0.15);
}

/* Maintenance Overlay Screen */
.maintenance-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--primary);
    z-index: 9999;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: white;
    text-align: center;
    padding: 40px;
}

/* Toast System */
.toast-container {
    position: fixed;
    bottom: 30px;
    left: 30px;
    z-index: 10000;
    display: grid;
    gap: 10px;
}

.toast {
    background: white;
    border-left: 5px solid var(--accent-coral);
    padding: 15px 25px;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
    display: flex;
    align-items: center;
    gap: 15px;
    transform: translateX(-100px);
    opacity: 0;
    transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.toast.show {
    transform: translateX(0);
    opacity: 1;
}

/* Commercial Proposal Devis details styling */
.devis-header {
    background: var(--primary);
    color: white;
    padding: 80px 0;
}

.devis-meta-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-top: 40px;
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 30px;
}

.devis-block {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 30px;
    margin-bottom: 30px;
}

.price-table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}

.price-table th, .price-table td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.price-table th {
    background: var(--bg-light);
    font-weight: 700;
}

.price-table td.amount {
    font-weight: 700;
    color: var(--accent-coral);
    text-align: right;
}

.price-table th.amount {
    text-align: right;
}

/* Print Styles */
@media print {
    header, footer, .floating-cta, .btn, .lang-switcher {
        display: none !important;
    }
    body {
        background: white;
        color: black;
    }
    .devis-block {
        border: none;
        box-shadow: none;
        padding: 0;
    }
    .price-table th {
        background: #f1f5f9 !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }
}

/* Responsive Queries */
@media (max-width: 992px) {
    .section {
        padding: 80px 5%;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: fixed;
        top: 80px;
        left: 0;
        width: 100%;
        background: var(--primary);
        flex-direction: column;
        padding: 40px 20px;
        gap: 20px;
        border-bottom: 1px solid rgba(255,255,255,0.1);
    }

    .nav-links.mobile-active {
        display: flex;
    }

    .mobile-toggle {
        display: block;
    }

    .quote-option-grid {
        grid-template-columns: 1fr;
    }

    .admin-layout {
        grid-template-columns: 1fr !important;
    }
    
    .admin-sidebar {
        min-height: auto;
    }
}

/* ===================================================
   PREMIUM CONTENT SECTIONS — TECHLEARN SARL AFRIQUE
   =================================================== */

/* WHY US — Differentiators grid */
.why-us-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 60px;
}
.why-us-card {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 40px 35px;
    position: relative;
    overflow: hidden;
    transition: var(--transition-smooth);
}
.why-us-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 4px; height: 100%;
    background: var(--accent-coral);
    transform: scaleY(0);
    transform-origin: bottom;
    transition: transform 0.4s ease;
}
.why-us-card:hover { transform: translateY(-6px); box-shadow: 0 30px 60px rgba(0,0,0,0.1); }
.why-us-card:hover::before { transform: scaleY(1); }
.why-us-icon {
    width: 56px; height: 56px;
    background: var(--accent-coral-glow);
    border-radius: 14px;
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 22px;
    color: var(--accent-coral);
}
.why-us-card h3 { font-size: 18px; margin-bottom: 12px; }
.why-us-card p { font-size: 14px; color: var(--text-muted); line-height: 1.7; }

/* TESTIMONIALS */
.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
    margin-top: 60px;
}
.testimonial-card {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 40px;
    position: relative;
    transition: var(--transition-smooth);
}
.testimonial-card:hover { transform: translateY(-5px); box-shadow: 0 25px 50px rgba(0,0,0,0.08); }
.testimonial-quote {
    font-size: 15px;
    line-height: 1.8;
    color: var(--text-muted);
    font-style: italic;
    margin-bottom: 30px;
    padding-left: 20px;
    border-left: 3px solid var(--accent-coral);
}
.testimonial-author {
    display: flex;
    align-items: center;
    gap: 15px;
}
.testimonial-avatar {
    width: 48px; height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-coral), #ff8a80);
    display: flex; align-items: center; justify-content: center;
    color: white; font-weight: 800; font-size: 18px; font-family: 'Outfit', sans-serif;
    flex-shrink: 0;
}
.testimonial-name { font-weight: 700; font-size: 15px; }
.testimonial-title { font-size: 13px; color: var(--text-muted); }
.star-rating { color: #FFB800; font-size: 14px; letter-spacing: 2px; margin-top: 4px; }

/* EXPERTISE BANNER */
.expertise-banner {
    background: linear-gradient(135deg, var(--primary) 0%, #1a1a2e 50%, #16213e 100%);
    color: white;
    padding: 80px 5%;
    border-radius: 24px;
    margin: 60px 0;
    position: relative;
    overflow: hidden;
}
.expertise-banner::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 500px; height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255,95,95,0.15) 0%, transparent 70%);
    pointer-events: none;
}
.expertise-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-top: 50px;
}
.expertise-item {
    text-align: center;
    padding: 30px 20px;
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 16px;
    transition: var(--transition-smooth);
}
.expertise-item:hover {
    background: rgba(255,255,255,0.05);
    border-color: var(--accent-coral);
    transform: translateY(-4px);
}
.expertise-item .number {
    font-size: 42px;
    font-weight: 800;
    font-family: 'Outfit', sans-serif;
    color: var(--accent-coral);
    display: block;
}
.expertise-item .label {
    font-size: 13px;
    opacity: 0.7;
    margin-top: 8px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* PROCESS STEPS */
.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-top: 60px;
    position: relative;
}
.process-step {
    text-align: center;
    padding: 40px 25px;
    position: relative;
}
.process-step-num {
    width: 60px; height: 60px;
    border-radius: 50%;
    background: var(--accent-coral);
    color: white;
    font-size: 22px;
    font-weight: 800;
    font-family: 'Outfit', sans-serif;
    display: flex; align-items: center; justify-content: center;
    margin: 0 auto 20px;
    position: relative;
    z-index: 1;
}
.process-step h4 { font-size: 16px; margin-bottom: 10px; }
.process-step p { font-size: 13px; color: var(--text-muted); line-height: 1.6; }

/* TRUST BADGES */
.trust-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    margin-top: 30px;
}
.trust-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: 30px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-main);
    transition: var(--transition-smooth);
}
.trust-badge:hover {
    background: var(--accent-coral-glow);
    border-color: var(--accent-coral);
    color: var(--accent-coral);
}

/* HIGHLIGHT CARD — dark style */
.highlight-card {
    background: linear-gradient(135deg, var(--primary), #1e1e2f);
    color: white;
    border-radius: 24px;
    padding: 50px;
    position: relative;
    overflow: hidden;
}
.highlight-card::before {
    content: '';
    position: absolute;
    bottom: -30%;
    right: -10%;
    width: 300px; height: 300px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255,95,95,0.2) 0%, transparent 70%);
}

/* SECTOR TAG */
.sector-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 14px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    background: var(--accent-coral-glow);
    color: var(--accent-coral);
    border: 1px solid rgba(255,95,95,0.2);
}

/* TIMELINE vertical */
.timeline { position: relative; padding-left: 40px; }
.timeline::before {
    content: '';
    position: absolute;
    left: 14px; top: 0; bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--accent-coral), transparent);
}
.timeline-item { position: relative; margin-bottom: 50px; }
.timeline-dot {
    position: absolute;
    left: -40px;
    top: 4px;
    width: 14px; height: 14px;
    border-radius: 50%;
    background: var(--accent-coral);
    border: 3px solid white;
    box-shadow: 0 0 0 3px var(--accent-coral);
}
.timeline-year {
    font-size: 12px;
    font-weight: 800;
    color: var(--accent-coral);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 8px;
}
.timeline-item h4 { font-size: 18px; margin-bottom: 8px; }
.timeline-item p { font-size: 14px; color: var(--text-muted); line-height: 1.7; }

/* IMPACT ROW */
.impact-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    background: var(--border-color);
    border-radius: 20px;
    overflow: hidden;
    margin-top: 60px;
}
.impact-cell {
    background: white;
    padding: 40px 30px;
    text-align: center;
}
.impact-cell .big-num {
    font-size: 48px;
    font-weight: 800;
    color: var(--accent-coral);
    font-family: 'Outfit', sans-serif;
    line-height: 1;
}
.impact-cell .desc { font-size: 13px; color: var(--text-muted); margin-top: 10px; }
@media (max-width: 768px) {
    .impact-row { grid-template-columns: repeat(2, 1fr); }
    .expertise-grid { grid-template-columns: repeat(2, 1fr); }
    .process-steps { grid-template-columns: 1fr; }
}

/* --- EXTRA MOBILE RESPONSIVE OPTIMIZATIONS & SEO BEST PRACTICES --- */
@media (max-width: 992px) {
    /* Handle two-column grid pages */
    .bio-container, 
    .devis-header > div,
    .devis-block + div,
    .projects-grid,
    .why-us-grid,
    .testimonial-grid {
        grid-template-columns: 1fr !important;
        gap: 30px !important;
    }
    
    .profile-sticky-card, 
    div[style*="position: sticky"] {
        position: static !important;
        width: 100% !important;
    }
}

@media (max-width: 768px) {
    /* Section paddings */
    .section {
        padding: 60px 15px !important;
    }
    
    /* Hero sections sizing */
    .hero h1, 
    section.bg-immersive h1 {
        font-size: clamp(28px, 6vw, 36px) !important;
        line-height: 1.2 !important;
    }
    
    section.bg-immersive p {
        font-size: 15px !important;
        line-height: 1.6 !important;
    }

    /* Grids & Cards */
    .why-us-grid {
        grid-template-columns: 1fr !important;
        gap: 20px !important;
    }

    .testimonial-grid {
        grid-template-columns: 1fr !important;
        gap: 20px !important;
    }

    .impact-row {
        grid-template-columns: 1fr !important;
        border-radius: 12px !important;
    }

    .expertise-grid {
        grid-template-columns: 1fr !important;
        gap: 20px !important;
    }

    .devis-meta-grid {
        grid-template-columns: 1fr !important;
        gap: 15px !important;
    }

    /* Tables responsiveness */
    .price-table {
        display: block !important;
        overflow-x: auto !important;
        white-space: nowrap !important;
        width: 100% !important;
    }

    /* Floating CTA */
    .floating-cta {
        bottom: 20px !important;
        right: 20px !important;
        padding: 12px 18px !important;
        font-size: 12px !important;
    }

    /* Logo size adjustments for mobile */
    .logo img {
        height: 44px !important;
    }
    
    /* Navigation burger and mobile nav menu */
    .nav-links {
        display: none !important;
    }
    
    .nav-links.mobile-active {
        display: flex !important;
        animation: slideDown 0.3s ease forwards;
        z-index: 1000 !important;
    }

    /* Footer adjustments */
    footer div[style*="display: grid"] {
        grid-template-columns: 1fr !important;
        gap: 40px !important;
        text-align: center !important;
    }
}

@media (max-width: 480px) {
    .section {
        padding: 40px 10px !important;
    }
    
    .btn {
        width: 100% !important;
        text-align: center !important;
        justify-content: center !important;
    }
    
    .timeline-item {
        padding-left: 20px !important;
    }
    
    .timeline::before {
        left: 0 !important;
    }
    
    .timeline-dot {
        left: -4px !important;
    }
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}