/* ==========================================================================
   SNERD GROUPE - CSS Premium
   ========================================================================== */

/* Variables */
:root {
    /* Colors */
    --primary-color: #0f172a; /* Deep Navy / Industrial */
    --primary-light: #1e293b;
    --secondary-color: #ea580c; /* Accent Copper/Orange */
    --secondary-hover: #c2410c;
    --text-main: #334155;
    --text-light: #64748b;
    --bg-light: #f8fafc;
    --white: #ffffff;
    --metallic-silver: #e2e8f0;
    --metallic-dark: #94a3b8;
    
    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Spacing */
    --section-padding: 100px 0;
    
    /* Transitions */
    --transition-fast: 0.3s ease;
    --transition-smooth: 0.5s cubic-bezier(0.25, 0.8, 0.25, 1);
    
    /* Shadows */
    --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--text-main);
    line-height: 1.6;
    background-color: var(--bg-light);
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--primary-color);
    line-height: 1.2;
}

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

ul {
    list-style: none;
}

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

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

.text-center {
    text-align: center;
}

/* Typography Utilities */
.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: -0.5px;
}

.section-title.light {
    color: var(--white);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto 3rem;
}

.section-subtitle.light {
    color: var(--metallic-silver);
}

.title-underline {
    height: 4px;
    width: 60px;
    background-color: var(--secondary-color);
    margin-bottom: 2rem;
    border-radius: 2px;
}

.title-underline.center {
    margin: 0 auto 2rem;
}

.text-highlight {
    color: var(--secondary-color);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1rem;
    border-radius: 4px;
    cursor: pointer;
    border: none;
    transition: var(--transition-smooth);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn-primary {
    background-color: var(--secondary-color);
    color: var(--white);
    box-shadow: 0 4px 14px rgba(234, 88, 12, 0.4);
}

.btn-primary:hover {
    background-color: var(--secondary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(234, 88, 12, 0.6);
}

.btn-primary-small {
    background-color: var(--secondary-color);
    color: var(--white);
    padding: 10px 20px;
    border-radius: 4px;
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

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

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

.btn-block {
    width: 100%;
}

/* Header */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: var(--transition-smooth);
    padding: 20px 0;
}

header.scrolled {
    background-color: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    padding: 15px 0;
    box-shadow: var(--shadow-sm);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: 1px;
    display: flex;
    align-items: center;
}

.logo-snerd {
    color: var(--secondary-color);
}

.logo-groupe {
    color: var(--white);
    margin-left: 5px;
}

header:not(.scrolled) .nav-links a:not(.btn-primary-small) {
    color: var(--white);
}

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

.nav-links a:not(.btn-primary-small) {
    color: var(--white);
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
}

.nav-links a:not(.btn-primary-small)::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--secondary-color);
    transition: var(--transition-smooth);
}

.nav-links a:not(.btn-primary-small):hover::after {
    width: 100%;
}

.mobile-menu-btn {
    display: none;
    color: var(--white);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #050810 0%, #1e293b 50%, #0a0f18 100%);
    background-size: 200% 200%;
    z-index: 1;
    animation: gradientShift 15s ease infinite;
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

@keyframes slowZoom {
    0% { transform: scale(1); }
    100% { transform: scale(1.1); }
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, rgba(15, 23, 42, 0.9) 0%, rgba(15, 23, 42, 0.6) 100%);
    z-index: 2;
}

.hero-content {
    position: relative;
    z-index: 3;
    max-width: 800px;
    margin: 0;
}

.badge {
    display: inline-block;
    padding: 6px 12px;
    background-color: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(4px);
    border-left: 3px solid var(--secondary-color);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 20px;
    font-weight: 600;
}

.hero h1 {
    font-size: 4rem;
    color: var(--white);
    margin-bottom: 20px;
}

.hero p {
    font-size: 1.2rem;
    color: var(--metallic-silver);
    margin-bottom: 40px;
    max-width: 600px;
}

.hero-actions {
    display: flex;
    gap: 20px;
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
}

.mouse {
    width: 30px;
    height: 50px;
    border: 2px solid rgba(255, 255, 255, 0.6);
    border-radius: 20px;
    display: block;
    position: relative;
}

.wheel {
    width: 4px;
    height: 8px;
    background-color: var(--secondary-color);
    border-radius: 2px;
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll 1.5s infinite;
}

@keyframes scroll {
    0% { top: 8px; opacity: 1; }
    100% { top: 25px; opacity: 0; }
}

/* About Section */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text p {
    margin-bottom: 1.5rem;
    font-size: 1.05rem;
}

.stats-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-top: 40px;
    padding-top: 30px;
    border-top: 1px solid var(--metallic-silver);
}

.stat-item i {
    font-size: 2rem;
    color: var(--secondary-color);
    margin-bottom: 15px;
}

.stat-item h4 {
    font-size: 1.2rem;
    margin-bottom: 5px;
}

.stat-item p {
    color: var(--text-light);
    margin-bottom: 0;
    font-size: 0.95rem;
}

.image-wrapper {
    position: relative;
}

.rounded-shadow {
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
}

.experience-badge {
    position: absolute;
    bottom: -30px;
    right: -30px;
    background-color: var(--primary-color);
    color: var(--white);
    padding: 30px;
    border-radius: 8px;
    box-shadow: var(--shadow-md);
    border-bottom: 4px solid var(--secondary-color);
}

.exp-title {
    display: block;
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--secondary-color);
}

.exp-sub {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Expertise Section */
.bg-dark {
    background-color: var(--primary-color);
}

.expertise-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.expertise-card {
    background-color: var(--white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition-smooth);
}

.expertise-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.card-image {
    height: 250px;
    position: relative;
    overflow: hidden;
    background-color: var(--metallic-dark);
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.expertise-card:hover .card-image img {
    transform: scale(1.1);
}

.bg-copper {
    background: linear-gradient(135deg, #b85e2c, #8a4018);
}

.card-icon {
    position: absolute;
    bottom: -25px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: var(--secondary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    box-shadow: var(--shadow-sm);
    z-index: 2;
}

.card-content {
    padding: 40px 30px 30px;
}

.card-content h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.card-content p {
    color: var(--text-light);
    margin-bottom: 20px;
}

.feature-list li {
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-main);
    font-weight: 500;
}

.feature-list i {
    color: var(--secondary-color);
}

/* Contact Section */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
    background-color: var(--white);
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.contact-info {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 50px 40px;
}

.contact-info h2 {
    color: var(--white);
    margin-bottom: 20px;
}

.contact-info > p {
    color: var(--metallic-silver);
    margin-bottom: 40px;
}

.info-items {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.info-item {
    display: flex;
    gap: 20px;
}

.icon-box {
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--secondary-color);
    font-size: 1.1rem;
    flex-shrink: 0;
}

.info-item h5 {
    color: var(--white);
    font-size: 1.1rem;
    margin-bottom: 5px;
}

.info-item p, .info-item a {
    color: var(--metallic-silver);
    font-size: 0.95rem;
}

.info-item a:hover {
    color: var(--secondary-color);
}

.contact-form-container {
    padding: 50px 40px;
}

.contact-form h3 {
    margin-bottom: 30px;
    font-size: 1.8rem;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--primary-color);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--metallic-dark);
    border-radius: 4px;
    font-family: var(--font-body);
    font-size: 1rem;
    transition: var(--transition-fast);
    background-color: var(--bg-light);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(234, 88, 12, 0.1);
}

.btn-block i {
    margin-left: 10px;
}

/* Footer */
footer {
    background-color: #080b12;
    color: var(--metallic-silver);
    padding: 60px 0 20px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
    padding-bottom: 30px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-tagline {
    margin-top: 10px;
    font-size: 0.9rem;
}

.footer-links {
    text-align: right;
}

.footer-links a {
    color: var(--white);
    font-weight: 600;
    font-size: 1.1rem;
}

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

.social-links {
    margin-top: 15px;
    display: flex;
    gap: 15px;
    justify-content: flex-end;
}

.social-links a {
    width: 35px;
    height: 35px;
    background-color: rgba(255,255,255,0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
}

.social-links a:hover {
    background-color: var(--secondary-color);
    color: var(--white);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    font-size: 0.85rem;
}

/* Scroll Animations */
.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.5, 0, 0, 1);
}

.scroll-reveal.active {
    opacity: 1;
    transform: translateY(0);
}

.fade-right {
    transform: translateX(50px);
}

.fade-right.active {
    transform: translateX(0);
}

/* Responsive Design */
@media (max-width: 992px) {
    .hero h1 { font-size: 3rem; }
    .about-grid, .expertise-grid { grid-template-columns: 1fr; }
    .experience-badge { right: 0; bottom: -20px; }
    .contact-wrapper { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background-color: var(--primary-color);
        flex-direction: column;
        justify-content: center;
        transition: var(--transition-smooth);
        box-shadow: -5px 0 15px rgba(0,0,0,0.1);
    }
    
    .nav-links.active {
        right: 0;
    }
    
    .mobile-menu-btn {
        display: block;
        z-index: 1001;
    }
    
    .hero h1 { font-size: 2.5rem; }
    .hero-actions { flex-direction: column; }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: 30px;
    }
    .footer-links { text-align: center; }
    .social-links { justify-content: center; }
}