/* ============================================
   ARC INGÉNIERIE — Theme BTP/Ingénierie
   ============================================ */

/* --- Variables --- */
:root {
    --color-bg: #0f172a;
    --color-bg-alt: #1e293b;
    --color-text: #e2e8f0;
    --color-text-muted: #94a3b8;
    --color-primary: #f59e0b;
    --color-primary-hover: #d97706;
    --color-secondary: #3b82f6;
    --color-accent: #f97316;
    --color-whatsapp: #25D366;
    --color-success: #10b981;
    --color-border: rgba(255,255,255,0.08);
    --font-heading: 'Plus Jakarta Sans', sans-serif;
    --font-body: 'Inter', sans-serif;
    --max-width: 1200px;
    --nav-height: 72px;
}

/* --- Reset & Base --- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: hidden; }
body {
    font-family: var(--font-body);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color 0.3s; }
ul { list-style: none; }
.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 { font-family: var(--font-heading); line-height: 1.2; font-weight: 700; }
.text-accent { color: var(--color-primary); }

/* --- Section --- */
.section {
    padding: clamp(60px, 10vw, 120px) 0;
    position: relative;
}
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto clamp(40px, 6vw, 64px);
}
.section-tag {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-primary);
    background: rgba(245, 158, 11, 0.1);
    padding: 6px 16px;
    border-radius: 100px;
    margin-bottom: 16px;
}
.section-title {
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    margin-bottom: 16px;
}
.section-subtitle {
    font-size: clamp(1rem, 2vw, 1.15rem);
    color: var(--color-text-muted);
    line-height: 1.6;
}
.section-text {
    color: var(--color-text-muted);
    font-size: 1.05rem;
    line-height: 1.8;
    margin-bottom: 16px;
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: 12px;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.95rem;
    border: 2px solid transparent;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
}
.btn-primary {
    background: var(--color-primary);
    color: #0f172a;
    border-color: var(--color-primary);
}
.btn-primary:hover {
    background: var(--color-primary-hover);
    border-color: var(--color-primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(245, 158, 11, 0.3);
}
.btn-secondary {
    background: var(--color-secondary);
    color: #fff;
    border-color: var(--color-secondary);
}
.btn-secondary:hover {
    background: #2563eb;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(59, 130, 246, 0.3);
}
.btn-outline {
    background: transparent;
    color: var(--color-text);
    border-color: var(--color-border);
}
.btn-outline:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    transform: translateY(-2px);
}
.btn-whatsapp {
    background: var(--color-whatsapp);
    color: #fff;
    border-color: var(--color-whatsapp);
}
.btn-whatsapp:hover {
    background: #20bd5a;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(37, 211, 102, 0.3);
}
.btn-lg { padding: 18px 40px; font-size: 1.05rem; }
.btn .icon { width: 20px; height: 20px; }

/* --- Navbar --- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--nav-height);
    background: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--color-border);
    transition: background 0.3s;
}
.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}
.nav-logo {
    display: flex;
    align-items: center;
    gap: 8px;
}
.nav-logo-icon {
    font-size: 1.4rem;
    color: var(--color-primary);
    font-weight: 900;
}
.nav-logo-text {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 800;
    color: #fff;
}
.nav-logo-sub {
    font-size: 0.7rem;
    color: var(--color-text-muted);
    font-weight: 500;
    margin-left: 4px;
    padding-left: 8px;
    border-left: 1px solid var(--color-border);
}
.nav-menu {
    display: flex;
    align-items: center;
    gap: 8px;
}
.nav-link {
    padding: 8px 18px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-muted);
    border-radius: 8px;
    transition: all 0.3s;
}
.nav-link:hover,
.nav-link.active {
    color: #fff;
    background: rgba(255,255,255,0.06);
}
.nav-cta {
    background: var(--color-primary) !important;
    color: #0f172a !important;
    font-weight: 700;
    padding: 10px 24px;
    border-radius: 10px;
}
.nav-cta:hover {
    background: var(--color-primary-hover) !important;
    transform: translateY(-1px);
}
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}
.nav-toggle span {
    display: block;
    width: 26px;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: all 0.3s;
}

/* --- Hero --- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: var(--nav-height);
    overflow: hidden;
}
.hero-carousel {
    position: absolute;
    inset: 0;
    z-index: 0;
    overflow: hidden;
}
.hero-slide {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 1.5s ease;
    will-change: opacity;
}
.hero-slide.active {
    opacity: 1;
}
.hero-overlay {
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.6);
    z-index: 1;
}
.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}
.hero-badge {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-primary);
    background: rgba(245, 158, 11, 0.12);
    padding: 8px 20px;
    border-radius: 100px;
    margin-bottom: 24px;
    border: 1px solid rgba(245, 158, 11, 0.2);
}
.hero-title {
    font-size: clamp(2.2rem, 6vw, 4rem);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 20px;
}
.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: var(--color-text-muted);
    line-height: 1.7;
    margin-bottom: 36px;
}
.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* --- Shape Divider --- */
.shape-divider {
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 60px;
    z-index: 2;
    fill: var(--color-bg);
}
.shape-divider--flip {
    bottom: auto;
    top: -1px;
    transform: rotate(180deg);
}

/* --- Stats --- */
.stats-section {
    padding: 60px 0;
    background: var(--color-bg-alt);
}
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.stat-card {
    text-align: center;
    position: relative;
    padding: 24px;
}
.stat-number {
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 900;
    color: var(--color-primary);
    line-height: 1;
}
.stat-plus, .stat-pct {
    font-family: var(--font-heading);
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 700;
    color: var(--color-primary);
    vertical-align: super;
}
.stat-label {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    margin-top: 8px;
}

/* --- About --- */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}
.about-image {
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid var(--color-border);
}
.about-image img {
    width: 100%;
    height: 450px;
    object-fit: cover;
    transition: transform 0.6s;
}
.about-image:hover img { transform: scale(1.03); }
.about-list {
    margin: 20px 0 28px;
}
.about-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 0;
    font-size: 0.95rem;
    color: var(--color-text-muted);
}
.about-list li .icon {
    width: 18px;
    height: 18px;
    color: var(--color-success);
    flex-shrink: 0;
}

/* --- Services --- */
.services-section {
    background: var(--color-bg-alt);
}
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.service-card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: 32px 28px;
    transition: all 0.4s ease;
}
.service-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(245, 158, 11, 0.08);
}
.service-icon {
    width: 48px;
    height: 48px;
    background: rgba(245, 158, 11, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}
.service-icon svg {
    width: 26px;
    height: 26px;
    color: var(--color-primary);
}
.service-title {
    font-size: 1.15rem;
    margin-bottom: 10px;
}
.service-text {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    line-height: 1.6;
}

/* --- Sectors --- */
.sectors-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}
.sector-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.4s;
}
.sector-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-4px);
}
.sector-img {
    overflow: hidden;
}
.sector-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s;
}
.sector-card:hover .sector-img img {
    transform: scale(1.05);
}
.sector-body {
    padding: 28px 24px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}
.sector-body h3 {
    font-size: 1.15rem;
    margin-bottom: 10px;
}
.sector-body p {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    line-height: 1.6;
}

/* --- Testimonials --- */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.testimonial-card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: 32px 28px;
    transition: all 0.4s;
}
.testimonial-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-4px);
}
.testimonial-stars {
    color: var(--color-primary);
    font-size: 1.1rem;
    margin-bottom: 16px;
    letter-spacing: 2px;
}
.testimonial-text {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    line-height: 1.7;
    margin-bottom: 20px;
    font-style: italic;
}
.testimonial-author strong {
    display: block;
    font-size: 0.9rem;
    color: var(--color-text);
    margin-bottom: 4px;
}
.testimonial-author span {
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

/* --- Service card link --- */
.service-card .service-link {
    display: inline-block;
    margin-top: 12px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-primary);
    transition: all 0.3s;
}
.service-card:hover .service-link {
    color: var(--color-primary-hover);
    transform: translateX(4px);
}

/* --- Why --- */
.why-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.why-card {
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: 32px 24px;
    transition: all 0.4s;
}
.why-card:hover {
    border-color: var(--color-secondary);
    transform: translateY(-4px);
}
.why-number {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 900;
    color: rgba(59, 130, 246, 0.15);
    line-height: 1;
    margin-bottom: 16px;
}
.why-card h3 {
    font-size: 1.1rem;
    margin-bottom: 10px;
}
.why-card p {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    line-height: 1.6;
}

/* --- CTA --- */
.cta-section {
    text-align: center;
    padding: 80px 0;
}
.cta-content {
    max-width: 650px;
    margin: 0 auto;
}
.cta-title {
    font-size: clamp(1.8rem, 4vw, 2.6rem);
    margin-bottom: 16px;
}
.cta-text {
    font-size: 1.05rem;
    color: var(--color-text-muted);
    margin-bottom: 32px;
}
.cta-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* --- Footer --- */
.footer {
    background: var(--color-bg-alt);
    border-top: 1px solid var(--color-border);
    padding: 60px 0 0;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 40px;
}
.footer-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 16px;
}
.footer-desc {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    line-height: 1.6;
    margin-bottom: 20px;
}
.footer-social {
    display: flex;
    gap: 12px;
}
.footer-social a {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: rgba(255,255,255,0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
}
.footer-social a:hover {
    background: var(--color-primary);
}
.footer-social .icon {
    width: 18px;
    height: 18px;
}
.footer-col h4 {
    font-size: 1rem;
    margin-bottom: 16px;
    color: #fff;
}
.footer-col ul li {
    margin-bottom: 10px;
}
.footer-col ul li a {
    font-size: 0.9rem;
    color: var(--color-text-muted);
}
.footer-col ul li a:hover {
    color: var(--color-primary);
}
.footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 0.9rem;
    color: var(--color-text-muted);
}
.footer-contact .icon {
    width: 16px;
    height: 16px;
    margin-top: 4px;
    flex-shrink: 0;
    color: var(--color-primary);
}
.footer-bottom {
    border-top: 1px solid var(--color-border);
    padding: 20px 0;
    text-align: center;
}
.footer-bottom p {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}
.footer-bottom a {
    color: var(--color-primary);
}

/* --- Service Detail Blocks --- */
.service-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
    margin-bottom: 80px;
    padding: 40px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 20px;
    transition: all 0.4s;
}
.service-detail:hover {
    border-color: rgba(245, 158, 11, 0.3);
    box-shadow: 0 12px 48px rgba(0,0,0,0.2);
}
.service-detail--reverse {
    direction: rtl;
}
.service-detail--reverse > * {
    direction: ltr;
}
.service-detail-img {
    border-radius: 14px;
    overflow: hidden;
    height: 100%;
    min-height: 320px;
}
.service-detail-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s;
}
.service-detail:hover .service-detail-img img {
    transform: scale(1.04);
}
.service-detail-body {
    position: relative;
    padding: 8px 0;
}
.service-detail-icon {
    width: 64px;
    height: 64px;
    border-radius: 14px;
    overflow: hidden;
    margin-bottom: 16px;
    border: 2px solid var(--color-border);
}
.service-detail-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.service-detail-num {
    position: absolute;
    top: 0;
    right: 0;
    font-family: var(--font-heading);
    font-size: 3.5rem;
    font-weight: 900;
    color: rgba(245, 158, 11, 0.08);
    line-height: 1;
    pointer-events: none;
}
.service-detail--reverse .service-detail-num {
    right: auto;
    left: 0;
}
.service-detail-body h3 {
    font-size: clamp(1.3rem, 2.5vw, 1.7rem);
    margin-bottom: 12px;
    color: var(--color-primary);
}
.service-detail-body > p {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    line-height: 1.7;
    margin-bottom: 16px;
}
.service-detail-list {
    margin-bottom: 20px;
}
.service-detail-list li {
    padding: 6px 0;
    padding-left: 24px;
    position: relative;
    font-size: 0.9rem;
    color: var(--color-text-muted);
}
.service-detail-list li::before {
    content: "▸";
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: bold;
}

/* --- Blog Preview Grid --- */
.blog-preview-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.blog-card {
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.4s;
}
.blog-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(245, 158, 11, 0.08);
}
.blog-card-img {
    height: 200px;
    overflow: hidden;
}
.blog-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s;
}
.blog-card:hover .blog-card-img img {
    transform: scale(1.05);
}
.blog-card-body {
    padding: 24px 20px;
}
.blog-card-date {
    display: block;
    font-size: 0.78rem;
    color: var(--color-primary);
    font-weight: 600;
    margin-bottom: 8px;
}
.blog-card-body h3 {
    font-size: 1.05rem;
    margin-bottom: 10px;
    line-height: 1.4;
}
.blog-card-body p {
    font-size: 0.88rem;
    color: var(--color-text-muted);
    line-height: 1.6;
    margin-bottom: 12px;
}
.blog-card-link {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-primary);
    transition: all 0.3s;
}
.blog-card-link:hover {
    color: var(--color-primary-hover);
    transform: translateX(4px);
}

/* --- Modal Devis --- */
.modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 2000;
    background: rgba(0,0,0,0.7);
    backdrop-filter: blur(6px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}
.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}
.modal-container {
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: 20px;
    padding: 40px 36px;
    max-width: 640px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    transform: translateY(30px) scale(0.95);
    transition: all 0.3s ease;
}
.modal-overlay.active .modal-container {
    transform: translateY(0) scale(1);
}
.modal-close {
    position: absolute;
    top: 16px;
    right: 20px;
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--color-text-muted);
    cursor: pointer;
    transition: color 0.3s;
    line-height: 1;
}
.modal-close:hover {
    color: var(--color-primary);
}
.modal-header {
    margin-bottom: 28px;
}
.modal-header h2 {
    font-size: 1.5rem;
    margin-bottom: 8px;
}
.modal-header p {
    color: var(--color-text-muted);
    font-size: 0.95rem;
}

/* --- Form Styles --- */
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 16px;
}
.form-group {
    margin-bottom: 16px;
}
.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 6px;
}
.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    font-family: var(--font-body);
    font-size: 0.95rem;
    color: var(--color-text);
    transition: all 0.3s ease;
    outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.15);
}
.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-text-muted);
    opacity: 0.6;
}
.form-group select {
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%2394a3b8' d='M1.41 0L6 4.58 10.59 0 12 1.41l-6 6-6-6z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 40px;
    cursor: pointer;
}
.form-group select option {
    background: var(--color-bg-alt);
    color: var(--color-text);
}
.form-group textarea {
    min-height: 120px;
    resize: vertical;
}
.form-success {
    display: none;
    text-align: center;
    padding: 40px 20px;
}
.form-success.show {
    display: block;
}
.success-icon {
    font-size: 3rem;
    margin-bottom: 16px;
}
.form-success h3 {
    font-size: 1.4rem;
    margin-bottom: 8px;
    color: var(--color-success);
}
.form-success p {
    color: var(--color-text-muted);
    font-size: 0.95rem;
}

@media (max-width: 600px) {
    .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }
    .modal-container {
        padding: 28px 20px;
    }
}

/* --- Reveal Animations --- */
html.reveal-ready [data-reveal] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}
html.reveal-ready [data-reveal].revealed {
    opacity: 1;
    transform: translateY(0);
}

/* --- Mesh Background --- */
.mesh-bg {
    background: radial-gradient(ellipse at 20% 50%, rgba(245,158,11,0.08) 0%, transparent 50%),
                radial-gradient(ellipse at 80% 20%, rgba(59,130,246,0.06) 0%, transparent 50%),
                var(--color-bg);
}
.mesh-bg--dark {
    background: radial-gradient(ellipse at 50% 0%, rgba(245,158,11,0.1) 0%, transparent 50%),
                radial-gradient(ellipse at 20% 80%, rgba(59,130,246,0.06) 0%, transparent 50%),
                var(--color-bg-alt);
}

/* --- Responsive --- */
@media (max-width: 1024px) {
    .services-grid { grid-template-columns: repeat(2, 1fr); }
    .why-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .nav-toggle { display: flex; }
    .nav-menu {
        position: fixed;
        top: var(--nav-height);
        left: 0;
        right: 0;
        background: rgba(15, 23, 42, 0.98);
        backdrop-filter: blur(16px);
        flex-direction: column;
        padding: 20px;
        gap: 4px;
        transform: translateY(-120%);
        opacity: 0;
        transition: all 0.4s ease;
        border-bottom: 1px solid var(--color-border);
    }
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
    }
    .nav-link {
        width: 100%;
        padding: 14px 20px;
        font-size: 1rem;
    }
    .nav-cta { text-align: center; }
    
    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
    .about-grid { grid-template-columns: 1fr; gap: 32px; }
    .about-image img { height: 300px; }
    .services-grid { grid-template-columns: 1fr; }
    .why-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .hero-actions, .cta-actions { flex-direction: column; align-items: center; }
    .btn { width: 100%; justify-content: center; }
}

@media (max-width: 480px) {
    .container { padding: 0 16px; }
    .section { padding: 50px 0; }
    .stat-card { padding: 16px; }
    .service-card { padding: 24px 20px; }
    .why-card { padding: 24px 20px; }
}