/* Ultra Intelligence Logistics — Corporate Website Styles */

:root {
    --primary: #0a3d62;
    --primary-light: #1e5f8e;
    --primary-dark: #072a47;
    --accent: #e8b830;
    --accent-light: #f0d06a;
    --text: #2d3436;
    --text-light: #636e72;
    --bg: #ffffff;
    --bg-alt: #f8f9fa;
    --bg-dark: #0a1628;
    --border: #e2e8f0;
    --shadow: 0 4px 24px rgba(0,0,0,0.08);
    --shadow-lg: 0 12px 48px rgba(0,0,0,0.12);
    --radius: 12px;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* ── Navbar ──────────────────────────────── */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    transition: box-shadow 0.3s;
}

.navbar.scrolled { box-shadow: var(--shadow); }

.nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--primary);
    font-weight: 700;
    font-size: 1.2rem;
}

.nav-logo-img {
    width: auto;
    height: 36px;
    border-radius: 6px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-light);
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.2s;
}

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

.nav-cta {
    background: var(--accent);
    color: var(--primary-dark) !important;
    padding: 10px 24px;
    border-radius: 8px;
    font-weight: 600 !important;
    transition: background 0.2s, transform 0.2s;
}

.nav-cta:hover {
    background: var(--accent-light);
    transform: translateY(-1px);
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text);
    margin: 5px 0;
    transition: 0.3s;
}

/* ── Hero ────────────────────────────────── */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    background: linear-gradient(135deg, var(--bg-dark) 0%, #0d2b4a 50%, #1a3f5c 100%);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(232,184,48,0.06) 0%, transparent 70%);
    pointer-events: none;
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 120px 24px 80px;
    position: relative;
    z-index: 1;
}

.hero-logo {
    display: block;
    width: 100px;
    height: 100px;
    border-radius: var(--radius);
    margin-bottom: 24px;
    box-shadow: 0 0 32px rgba(232,184,48,0.15);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(232,184,48,0.15);
    border: 1px solid rgba(232,184,48,0.3);
    color: var(--accent);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 32px;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    color: white;
    line-height: 1.15;
    margin-bottom: 20px;
    max-width: 700px;
}

.hero h1 span { color: var(--accent); }

.hero p {
    font-size: 1.2rem;
    color: rgba(255,255,255,0.7);
    max-width: 560px;
    margin-bottom: 40px;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: 10px;
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    transition: all 0.3s;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--accent);
    color: var(--primary-dark);
}

.btn-primary:hover {
    background: var(--accent-light);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(232,184,48,0.3);
}

.btn-outline {
    background: transparent;
    color: white;
    border: 2px solid rgba(255,255,255,0.3);
}

.btn-outline:hover {
    border-color: white;
    background: rgba(255,255,255,0.08);
    transform: translateY(-2px);
}

.hero-stats {
    display: flex;
    gap: 48px;
    margin-top: 64px;
    padding-top: 40px;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.hero-stat-number {
    font-size: 2rem;
    font-weight: 800;
    color: white;
}

.hero-stat-label {
    font-size: 0.85rem;
    color: rgba(255,255,255,0.5);
    margin-top: 4px;
}

/* ── Sections ───────────────────────────── */

.section {
    padding: 100px 24px;
}

.section-alt { background: var(--bg-alt); }

.section-inner {
    max-width: 1200px;
    margin: 0 auto;
}

.section-label {
    display: inline-block;
    color: var(--primary-light);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 12px;
}

.section-title {
    font-size: 2.4rem;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-light);
    max-width: 600px;
    line-height: 1.7;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.about-logo {
    display: block;
    width: 80px;
    height: 80px;
    border-radius: var(--radius);
    margin: 0 auto 24px;
}

.section-header .section-subtitle { margin: 0 auto; }

/* ── Services Grid ───────────────────────── */

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.service-card {
    background: white;
    border-radius: var(--radius);
    padding: 40px 32px;
    border: 1px solid var(--border);
    transition: all 0.3s;
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.service-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, rgba(10,61,98,0.08), rgba(30,95,142,0.08));
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    font-size: 1.5rem;
}

.service-card h3 {
    font-size: 1.2rem;
    color: var(--primary-dark);
    margin-bottom: 12px;
}

.service-card p {
    color: var(--text-light);
    font-size: 0.92rem;
    line-height: 1.7;
}

/* ── Features ────────────────────────────── */

.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.feature-item {
    display: flex;
    gap: 20px;
    padding: 32px;
    background: white;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    transition: box-shadow 0.3s;
}

.feature-item:hover { box-shadow: var(--shadow); }

.feature-check {
    width: 32px;
    height: 32px;
    min-width: 32px;
    background: rgba(10,61,98,0.08);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-weight: 700;
}

.feature-item h4 {
    font-size: 1.05rem;
    color: var(--primary-dark);
    margin-bottom: 8px;
}

.feature-item p {
    color: var(--text-light);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* ── Process Steps ───────────────────────── */

.process-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    position: relative;
    counter-reset: step;
}

.step-card {
    text-align: center;
    padding: 40px 24px;
    background: white;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    position: relative;
    counter-increment: step;
    transition: all 0.3s;
}

.step-card:hover { box-shadow: var(--shadow); }

.step-number {
    width: 48px;
    height: 48px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.2rem;
    margin: 0 auto 20px;
}

.step-card h4 {
    font-size: 1.05rem;
    color: var(--primary-dark);
    margin-bottom: 10px;
}

.step-card p {
    color: var(--text-light);
    font-size: 0.88rem;
    line-height: 1.6;
}

/* ── CTA ─────────────────────────────────── */

.cta-section {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    text-align: center;
    padding: 100px 24px;
}

.cta-section h2 {
    font-size: 2.4rem;
    font-weight: 700;
    color: white;
    margin-bottom: 16px;
}

.cta-section p {
    color: rgba(255,255,255,0.7);
    font-size: 1.1rem;
    max-width: 500px;
    margin: 0 auto 36px;
}

/* ── Footer ──────────────────────────────── */

.footer {
    background: var(--bg-dark);
    color: rgba(255,255,255,0.6);
    padding: 64px 24px 32px;
}

.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 40px;
}

.footer-logo {
    width: auto;
    height: 42px;
    border-radius: 6px;
    margin-bottom: 16px;
}

.footer-brand h3 {
    color: white;
    font-size: 1.2rem;
    margin-bottom: 8px;
}

.footer-brand p {
    font-size: 0.88rem;
    max-width: 320px;
    line-height: 1.6;
}

.footer-contact h4 {
    color: white;
    font-size: 1rem;
    margin-bottom: 12px;
}

.footer-contact p {
    font-size: 0.88rem;
    margin-bottom: 6px;
}

.footer-contact a {
    color: var(--accent);
    text-decoration: none;
}

.footer-contact a:hover { text-decoration: underline; }

.footer-bottom {
    max-width: 1200px;
    margin: 40px auto 0;
    padding-top: 24px;
    border-top: 1px solid rgba(255,255,255,0.1);
    text-align: center;
    font-size: 0.82rem;
    color: rgba(255,255,255,0.4);
}

/* ── Mobile ──────────────────────────────── */

@media (max-width: 900px) {
    .services-grid { grid-template-columns: repeat(2, 1fr); }
    .features-grid { grid-template-columns: 1fr; }
    .process-steps { grid-template-columns: repeat(2, 1fr); }
    .hero h1 { font-size: 2.5rem; }
}

@media (max-width: 640px) {
    .nav-links { display: none; }
    .nav-links.open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: white;
        padding: 24px;
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow);
        gap: 16px;
    }
    .mobile-toggle { display: block; }
    .services-grid { grid-template-columns: 1fr; }
    .process-steps { grid-template-columns: 1fr; }
    .hero h1 { font-size: 2rem; }
    .hero-stats { flex-direction: column; gap: 24px; }
    .section-title { font-size: 1.8rem; }
    .hero-stat-number { font-size: 1.6rem; }
    .footer-inner { flex-direction: column; }
}