/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; font-size: 16px; }
body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    color: #334155; background: #fff; line-height: 1.6;
    -webkit-font-smoothing: antialiased; overflow-x: hidden;
}
:root {
    --primary: #0d6efd; --primary-dark: #0b5ed7; --primary-light: #e8f0fe;
    --dark: #0a1628; --dark-2: #111d32; --dark-3: #1a2940;
    --gray-50: #f8fafc; --gray-100: #f1f5f9; --gray-200: #e2e8f0;
    --gray-300: #cbd5e1; --gray-400: #94a3b8; --gray-500: #64748b;
    --gray-600: #475569; --gray-700: #334155; --gray-800: #1e293b;
    --white: #ffffff; --accent: #00b4d8;
    --radius-sm: 6px; --radius: 10px; --radius-lg: 16px; --radius-xl: 20px;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.06); --shadow: 0 4px 10px rgba(0,0,0,0.07);
    --shadow-md: 0 10px 25px rgba(0,0,0,0.08); --shadow-lg: 0 20px 40px rgba(0,0,0,0.10);
    --transition: 0.3s cubic-bezier(0.4,0,0.2,1);
    --max-width: 1200px; --header-height: 72px;
}

/* ===== HEADER ===== */
.header {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    background: rgba(10,22,40,0.95); backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(255,255,255,0.08); height: var(--header-height);
    transition: var(--transition);
}
.header.scrolled { box-shadow: 0 4px 20px rgba(0,0,0,0.3); }
.header-inner {
    max-width: var(--max-width); margin: 0 auto; padding: 0 24px;
    display: flex; align-items: center; justify-content: space-between; height: 100%;
}
.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.logo-img { width: 40px; height: 40px; border-radius: var(--radius-sm); }
.logo span { font-weight: 700; font-size: 1.3rem; color: #fff; letter-spacing: -0.3px; }
.nav-links { display: flex; list-style: none; gap: 4px; align-items: center; }
.nav-links a {
    text-decoration: none; color: #cbd5e1; padding: 10px 16px;
    border-radius: var(--radius-sm); font-weight: 500; font-size: 0.95rem;
    transition: var(--transition); position: relative;
}
.nav-links a:hover, .nav-links a.active { color: #fff; background: rgba(255,255,255,0.07); }
.nav-links .btn-nav {
    background: var(--primary); color: #fff !important; padding: 10px 20px;
    font-weight: 600; margin-left: 8px;
}
.nav-links .btn-nav:hover { background: var(--primary-dark); box-shadow: 0 4px 14px rgba(13,110,253,0.4); }
.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; background: none; border: none; padding: 8px; z-index: 1001; }
.hamburger span { width: 26px; height: 2.5px; background: #fff; border-radius: 2px; transition: var(--transition); }
.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px,5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px,-5px); }
.nav-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 998; }
.nav-overlay.show { display: block; }

/* ===== HERO ===== */
.hero {
    background: var(--dark);
    background-image: radial-gradient(ellipse at 20% 50%, rgba(13,110,253,0.12) 0%, transparent 55%),
                      radial-gradient(ellipse at 75% 30%, rgba(0,180,216,0.1) 0%, transparent 55%);
    min-height: 100vh; display: flex; align-items: center; padding: 100px 24px 80px;
    position: relative; overflow: hidden;
}
.hero::before {
    content: ''; position: absolute; inset: 0;
    background: repeating-linear-gradient(0deg, transparent, transparent 40px, rgba(255,255,255,0.008) 40px, rgba(255,255,255,0.008) 41px);
    pointer-events: none;
}
.hero-content { max-width: var(--max-width); margin: 0 auto; width: 100%; position: relative; z-index: 1; display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.hero-text h1 { font-size: clamp(2.2rem, 4.5vw, 3.2rem); font-weight: 800; color: #fff; line-height: 1.2; letter-spacing: -0.6px; margin-bottom: 20px; }
.hero-text h1 .highlight { background: linear-gradient(135deg, #60a5fa, #00b4d8); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-text p { font-size: 1.1rem; color: #cbd5e1; margin-bottom: 32px; max-width: 540px; }
.hero-buttons { display: flex; gap: 14px; flex-wrap: wrap; }
.btn {
    display: inline-flex; align-items: center; gap: 8px; padding: 14px 28px;
    font-size: 1rem; font-weight: 600; border-radius: var(--radius); text-decoration: none;
    cursor: pointer; border: none; transition: var(--transition); white-space: nowrap;
}
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 4px 16px rgba(13,110,253,0.35); }
.btn-primary:hover { background: #0b5ed7; box-shadow: 0 6px 22px rgba(13,110,253,0.5); transform: translateY(-2px); }
.btn-outline { background: transparent; color: #fff; border: 2px solid rgba(255,255,255,0.35); }
.btn-outline:hover { border-color: #fff; background: rgba(255,255,255,0.06); transform: translateY(-2px); }
.hero-visual { display: flex; align-items: center; justify-content: center; }
.hero-card-stack { position: relative; width: 100%; max-width: 420px; aspect-ratio: 1/1; }
.hero-floating-card {
    position: absolute; background: rgba(255,255,255,0.05); backdrop-filter: blur(12px);
    border: 1px solid rgba(255,255,255,0.12); border-radius: var(--radius-lg);
    padding: 20px 24px; color: #fff; animation: float 6s ease-in-out infinite;
}
.hero-floating-card:nth-child(1) { top:5%; left:5%; animation-delay:0s; }
.hero-floating-card:nth-child(2) { top:30%; right:0%; animation-delay:-1.5s; }
.hero-floating-card:nth-child(3) { bottom:10%; left:15%; animation-delay:-3s; }
.hero-floating-card:nth-child(4) { bottom:25%; right:8%; animation-delay:-4.5s; }
.hero-floating-card .fc-icon { font-size:2rem; margin-bottom:6px; }
.hero-floating-card .fc-label { font-weight:600; font-size:0.9rem; }
.hero-floating-card .fc-sub { font-size:0.75rem; color:#94a3b8; }
@keyframes float { 0%,100% { transform:translateY(0); } 50% { transform:translateY(-16px); } }

/* ===== SECTIONS ===== */
.section { padding: 80px 24px; }
.section-alt { background: var(--gray-50); }
.section-dark { background: var(--dark); color: #e2e8f0; }
.section-inner { max-width: var(--max-width); margin: 0 auto; }
.section-header { text-align: center; margin-bottom: 56px; }
.section-header h2 { font-size: 2.1rem; font-weight: 700; color: var(--dark); letter-spacing: -0.4px; margin-bottom: 12px; }
.section-dark .section-header h2 { color: #fff; }
.section-header p { max-width: 600px; margin: 0 auto; color: var(--gray-500); }
.section-tag {
    display: inline-block; background: var(--primary-light); color: var(--primary);
    font-weight: 600; font-size: 0.85rem; padding: 6px 16px; border-radius: 20px;
    margin-bottom: 14px; text-transform: uppercase; letter-spacing: 0.3px;
}
.section-dark .section-tag { background: rgba(13,110,253,0.2); color: #60a5fa; }

/* ===== CAPABILITY CARDS (3D TILT) ===== */
.capabilities-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    perspective: 1200px;
}

.capability-card {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 28px 20px;
    text-align: center;
    box-shadow: var(--shadow);
    border: 1px solid var(--gray-200);
    transition: box-shadow 0.3s ease, transform 0.1s ease;
    transform-style: preserve-3d;
    transform: rotateX(0deg) rotateY(0deg);
    cursor: pointer;
    will-change: transform;
}

.capability-card:hover {
    box-shadow: var(--shadow-lg);
    z-index: 2;
}

.cap-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 16px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.2rem;
    color: #fff;
    letter-spacing: 1px;
}

.capability-card h4 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 8px;
}

.capability-card p {
    font-size: 0.9rem;
    color: var(--gray-500);
    line-height: 1.5;
}

/* ===== SERVICES CARDS ===== */
.services-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px,1fr)); gap: 24px; }
.service-card {
    background: #fff; border-radius: var(--radius-lg); padding: 28px 24px;
    box-shadow: var(--shadow); border: 1px solid var(--gray-200); transition: var(--transition);
    position: relative; overflow: hidden;
}
.service-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--primary); }
.service-card .card-icon {
    width: 52px; height: 52px; border-radius: var(--radius); display: flex; align-items: center;
    justify-content: center; font-size: 1.3rem; margin-bottom: 16px;
    background: var(--primary-light); font-weight: 700; color: var(--primary);
}
.service-card h4 { font-size: 1.05rem; font-weight: 700; color: var(--dark); margin-bottom: 8px; }
.service-card p { color: var(--gray-500); font-size: 0.9rem; line-height: 1.5; }
.service-card .card-badge {
    position: absolute; top: 16px; right: 16px; font-size: 0.7rem; background: #e8f0fe;
    color: var(--primary); padding: 3px 10px; border-radius: 12px; font-weight: 600;
}

/* ===== WHY CHOOSE US ===== */
.why-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px,1fr)); gap: 24px; }
.why-card {
    background: var(--dark-3); border-radius: var(--radius-lg); padding: 28px 24px;
    border: 1px solid rgba(255,255,255,0.06); transition: var(--transition);
}
.why-card:hover { border-color: rgba(255,255,255,0.2); transform: translateY(-4px); }
.why-card .wc-icon { font-size: 2rem; margin-bottom: 12px; color: var(--accent); }
.why-card h4 { color: #fff; font-weight: 700; margin-bottom: 6px; font-size: 1.05rem; }
.why-card p { color: #94a3b8; font-size: 0.9rem; }

/* ===== INDUSTRIES ===== */
.industries-grid { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.industry-tag {
    background: #fff; border: 1px solid var(--gray-200); padding: 12px 22px;
    border-radius: 30px; font-weight: 600; font-size: 0.9rem; color: var(--gray-700);
    transition: var(--transition); cursor: default; box-shadow: var(--shadow-sm);
}
.industry-tag:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-light); transform: translateY(-2px); }

/* ===== CONTACT ===== */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.contact-info h3 { font-size: 1.5rem; font-weight: 700; color: var(--dark); margin-bottom: 12px; }
.contact-intro {
    margin-bottom: 24px;
    color: var(--gray-600);
    line-height: 1.8;
    font-size: 1rem;
}
.contact-map {
    margin-bottom: 24px;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}
.contact-details-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.contact-detail { display: flex; align-items: flex-start; gap: 12px; }
.contact-detail .cd-icon {
    width: 42px; height: 42px; background: var(--primary-light); border-radius: var(--radius);
    display: flex; align-items: center; justify-content: center; font-size: 1rem; font-weight: 700;
    color: var(--primary); flex-shrink: 0;
}
.contact-detail strong { display: block; color: var(--dark); font-size: 0.9rem; }
.contact-detail span { color: var(--gray-500); font-size: 0.9rem; }
.contact-form-wrapper {
    background: #fff; border-radius: var(--radius-lg); padding: 32px;
    box-shadow: var(--shadow-md); border: 1px solid var(--gray-200);
}
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-weight: 600; margin-bottom: 5px; color: var(--gray-700); font-size: 0.9rem; }
.form-group input, .form-group select, .form-group textarea {
    width: 100%; padding: 12px 16px; border: 1.5px solid var(--gray-200);
    border-radius: var(--radius); font-family: inherit; font-size: 0.95rem;
    transition: var(--transition); background: var(--gray-50); color: var(--gray-800);
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(13,110,253,0.1); background: #fff;
}
.form-group textarea { resize: vertical; min-height: 120px; }
.form-submit {
    width: 100%; padding: 14px; font-size: 1rem; font-weight: 600; background: var(--primary);
    color: #fff; border: none; border-radius: var(--radius); cursor: pointer; transition: var(--transition);
}
.form-submit:hover { background: var(--primary-dark); box-shadow: 0 6px 20px rgba(13,110,253,0.4); }
.form-message { padding: 12px 16px; border-radius: var(--radius-sm); margin-bottom: 16px; font-weight: 500; font-size: 0.9rem; display: none; }
.form-message.success { display: block; background: #d1fae5; color: #065f46; border: 1px solid #a7f3d0; }
.form-message.error { display: block; background: #fee2e2; color: #991b1b; border: 1px solid #fecaca; }

/* ===== FOOTER ===== */
.footer { background: var(--dark-2); color: #94a3b8; padding: 48px 24px 24px; }
.footer-inner { max-width: var(--max-width); margin: 0 auto; display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; }
.footer-col h4 { color: #fff; margin-bottom: 16px; font-weight: 700; font-size: 1rem; }
.footer-col p, .footer-col ul li { font-size: 0.9rem; line-height: 1.7; }
.footer-col ul { list-style: none; }
.footer-col ul li a { color: #94a3b8; text-decoration: none; transition: var(--transition); }
.footer-col ul li a:hover { color: #fff; }
.footer-bottom { max-width: var(--max-width); margin: 32px auto 0; padding-top: 20px; border-top: 1px solid rgba(255,255,255,0.08); text-align: center; font-size: 0.85rem; color: #64748b; }

/* ===== BACK TO TOP ===== */
.back-to-top {
    position: fixed; bottom: 28px; right: 28px; width: 44px; height: 44px;
    background: var(--primary); color: #fff; border: none; border-radius: 50%;
    cursor: pointer; font-size: 1.2rem; z-index: 999; opacity: 0; transform: translateY(20px);
    pointer-events: none; transition: var(--transition); box-shadow: var(--shadow-md);
}
.back-to-top.visible { opacity: 1; transform: translateY(0); pointer-events: auto; }
.back-to-top:hover { background: var(--primary-dark); transform: translateY(-3px); }

/* ===== ANIMATIONS (Scroll) ===== */
.fade-up {
    opacity: 0; transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-up.visible { opacity: 1; transform: translateY(0); }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .hero-content { grid-template-columns: 1fr; text-align: center; }
    .hero-text p { margin: 0 auto 32px; }
    .hero-buttons { justify-content: center; }
    .hero-visual { display: none; }
    .contact-grid { grid-template-columns: 1fr; }
    .footer-inner { grid-template-columns: 1fr 1fr; }
    .capabilities-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 768px) {
    .nav-links { position: fixed; top:0; right:-100%; width:280px; height:100vh; background: var(--dark-2); flex-direction: column; padding: 90px 24px 40px; gap: 8px; transition: var(--transition); box-shadow: var(--shadow-xl); }
    .nav-links.open { right:0; }
    .nav-links a { font-size:1rem; padding:12px 16px; }
    .nav-links .btn-nav { margin-left:0; text-align:center; }
    .hamburger { display:flex; }
    .services-grid { grid-template-columns: 1fr 1fr; }
    .why-grid { grid-template-columns: 1fr 1fr; }
    .capabilities-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
    .services-grid, .why-grid { grid-template-columns: 1fr; }
    .hero-buttons { flex-direction: column; align-items: center; }
    .btn { width: 100%; justify-content: center; }
    .industries-grid { gap: 8px; }
    .industry-tag { padding: 10px 16px; font-size: 0.8rem; }
    .contact-form-wrapper { padding: 20px; }
    .capabilities-grid { grid-template-columns: 1fr; }
}