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

:root {
    --industry-blue: #0A192F;
    --industry-blue-light: #1E293B;
    --innovation-orange: #FF6B35;
    
    --bg-main: #FFFFFF;
    --bg-alt: #F8FAFC;
    --text-primary: #0F172A;
    --text-secondary: #475569;
    
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 1);
    --glass-shadow: 0 20px 40px rgba(15, 23, 42, 0.06);
    
    --container-max: 1300px;
}

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

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

h1, h2, h3, h4 {
    font-family: 'Inter', sans-serif;
    color: var(--industry-blue);
}

.data-font {
    font-family: 'Space Grotesk', sans-serif;
}

/* Header */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 9999;
    padding: 1.5rem 0;
    background: transparent;
    transition: all 0.5s ease;
}

header.scrolled {
    background: rgba(255, 255, 255, 0.98);
    border-bottom: 1px solid #E2E8F0;
    padding: 1rem 0;
    box-shadow: 0 4px 20px rgba(0,0,0,0.03);
}

header nav {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 4rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo { font-size: 1.8rem; font-weight: 800; letter-spacing: -1px; color: var(--industry-blue); }
.logo span { color: var(--innovation-orange); }

.nav-menu { display: flex; align-items: center; gap: 3rem; }
.nav-links { list-style: none; display: flex; gap: 3rem; align-items: center; }
.nav-links a { text-decoration: none; color: var(--text-primary); font-size: 0.95rem; font-weight: 600; transition: 0.3s; }
.nav-links a:hover { color: var(--innovation-orange); }

/* Hamburger */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
    z-index: 10001;
}
.hamburger span {
    width: 30px;
    height: 3px;
    background: var(--industry-blue);
    border-radius: 3px;
    transition: 0.3s;
}

/* Buttons */
.btn-primary {
    background: var(--industry-blue);
    color: white;
    padding: 1.1rem 2.5rem;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    display: inline-block;
    transition: 0.3s;
    border: 1px solid transparent;
}
.btn-primary:hover {
    background: var(--innovation-orange);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(255, 107, 53, 0.2);
}

.btn-secondary {
    background: white;
    color: var(--industry-blue);
    padding: 1.1rem 2.5rem;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: 0.3s;
    border: 1px solid #E2E8F0;
    box-shadow: 0 4px 6px rgba(0,0,0,0.02);
}
.btn-secondary:hover {
    border-color: var(--industry-blue);
}

/* Base Layout */
.container { max-width: var(--container-max); margin: 0 auto; padding: 0 4rem; }
section { padding: 120px 0; }
.bg-light { background-color: var(--bg-alt); }

.section-header { margin-bottom: 5rem; text-align: center; }
.section-header.left { text-align: left; }
.section-header .pre-heading { font-family: 'Space Grotesk', sans-serif; font-size: 0.9rem; letter-spacing: 0.15em; color: var(--innovation-orange); text-transform: uppercase; font-weight: 700; margin-bottom: 1rem; display: block; }
.section-header h2 { font-size: 3.5rem; font-weight: 800; line-height: 1.1; margin-bottom: 1.5rem; letter-spacing: -0.02em; }
.section-header p { font-size: 1.15rem; color: var(--text-secondary); max-width: 650px; margin: 0 auto; }
.section-header.left p { margin: 0; }

/* Light Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 100px;
    position: relative;
    background: linear-gradient(135deg, #F8FAFC 0%, #E2E8F0 100%);
    overflow: hidden;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 4rem;
    align-items: center;
}

.hero h1 { font-size: 5.5rem; line-height: 1.05; letter-spacing: -0.04em; margin-bottom: 1.5rem; color: var(--industry-blue); }
.hero h1 span { color: var(--innovation-orange); }
.hero p { font-size: 1.3rem; color: var(--text-secondary); margin-bottom: 3rem; max-width: 550px; }
.hero-btns { display: flex; gap: 1rem; }

.hero-image-wrapper {
    position: relative;
    height: 600px;
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 30px 60px rgba(10, 25, 47, 0.15);
}
.hero-image {
    width: 100%; height: 100%;
    object-fit: cover;
}
.hero-floating-badge {
    position: absolute;
    bottom: -30px;
    left: -30px;
    background: white;
    padding: 2rem;
    border-radius: 20px;
    box-shadow: var(--glass-shadow);
    display: flex;
    align-items: center;
    gap: 1.5rem;
    border: 1px solid #F1F5F9;
    z-index: 10;
}
.hero-floating-badge .icon { font-size: 2.5rem; color: var(--innovation-orange); }
.hero-floating-badge h4 { margin-bottom: 0.2rem; font-size: 1.2rem; }

/* Stats Bar */
.stats-bar { padding: 60px 0; background: white; border-bottom: 1px solid #E2E8F0; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; text-align: center; }
.stat-item h3 { font-size: 3.5rem; font-weight: 800; color: var(--industry-blue); margin-bottom: 0.5rem; line-height: 1; }
.stat-item p { font-family: 'Space Grotesk', sans-serif; text-transform: uppercase; letter-spacing: 1px; font-size: 0.85rem; color: var(--text-secondary); font-weight: 700; }

/* Methodology */
.process-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 3rem; }
.process-card {
    background: white;
    padding: 3rem;
    border-radius: 20px;
    border: 1px solid #E2E8F0;
    transition: 0.4s;
    box-shadow: 0 10px 20px rgba(0,0,0,0.02);
}
.process-card:hover { transform: translateY(-10px); border-color: var(--innovation-orange); box-shadow: 0 20px 40px rgba(255, 107, 53, 0.08); }
.process-number { font-family: 'Space Grotesk', sans-serif; font-size: 2rem; font-weight: 800; color: var(--industry-blue); opacity: 0.1; margin-bottom: 1rem; display: block; line-height: 1; }
.process-card h3 { font-size: 1.5rem; margin-bottom: 1rem; }

/* Visual Split Section (Architecture / Connectivity) */
.split-section { display: grid; grid-template-columns: 1fr 1fr; gap: 6rem; align-items: center; }
.split-image {
    position: relative;
    border-radius: 24px;
    overflow: hidden;
    height: 550px;
    box-shadow: var(--glass-shadow);
}
.split-image img { width: 100%; height: 100%; object-fit: cover; }

/* Light Floating Glass */
.light-float {
    position: absolute;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    border: 1px solid white;
    padding: 1.5rem 2rem;
    border-radius: 16px;
    box-shadow: 0 20px 40px rgba(10, 25, 47, 0.1);
    display: flex;
    align-items: center;
    gap: 1rem;
    animation: floatLight 6s infinite ease-in-out;
}
.lf-1 { top: 10%; right: -5%; }
.lf-2 { bottom: 15%; left: -10%; animation-delay: -3s; }
.light-float .icon { background: var(--bg-alt); width: 45px; height: 45px; border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 1.5rem; color: var(--industry-blue); }
.light-float h4 { font-family: 'Space Grotesk'; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 1px; color: var(--text-secondary); margin-bottom: 0.2rem; }
.light-float .val { font-size: 1.2rem; font-weight: 700; color: var(--industry-blue); }

@keyframes floatLight { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }

/* Features Grid (Fleet) */
.fleet-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
.fleet-card { background: white; border-radius: 20px; overflow: hidden; border: 1px solid #E2E8F0; }
.fleet-img { height: 200px; background: #CBD5E1; }
.fleet-img img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(20%); }
.fleet-content { padding: 2rem; }
.fleet-content h3 { font-size: 1.3rem; margin-bottom: 0.5rem; }

/* Specialized Cargo Grid */
.cargo-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; }
.cargo-card { background: white; padding: 2.5rem 2rem; border-radius: 16px; border: 1px solid #E2E8F0; text-align: center; transition: 0.3s; }
.cargo-card:hover { transform: translateY(-5px); border-color: var(--industry-blue); box-shadow: 0 15px 30px rgba(0,0,0,0.05); }
.cargo-card .icon { font-size: 2.5rem; margin-bottom: 1rem; color: var(--innovation-orange); }
.cargo-card h4 { font-size: 1.1rem; margin-bottom: 0.5rem; }
.cargo-card p { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.5; }

/* Light FAQ Accordion */
.faq-section { background: white; }
.faq-list { max-width: 900px; margin: 0 auto; display: flex; flex-direction: column; gap: 1rem; }
.faq-item { background: var(--bg-alt); border-radius: 12px; padding: 1.5rem 2rem; border: 1px solid #E2E8F0; cursor: pointer; transition: 0.3s; }
.faq-item:hover { border-color: var(--innovation-orange); }
.faq-item h4 { font-size: 1.2rem; margin-bottom: 0; color: var(--industry-blue); display: flex; justify-content: space-between; align-items: center; }
.faq-item h4::after { content: '+'; font-size: 1.5rem; color: var(--innovation-orange); font-weight: 300; transition: 0.3s; }
.faq-item p { color: var(--text-secondary); max-height: 0; overflow: hidden; transition: 0.3s; font-size: 1rem; margin-top: 0; }
.faq-item.active { background: white; border-color: var(--innovation-orange); box-shadow: 0 10px 20px rgba(255,107,53,0.05); }
.faq-item.active h4 { margin-bottom: 1rem; }
.faq-item.active h4::after { content: '−'; transform: rotate(180deg); }
.faq-item.active p { max-height: 200px; margin-top: 1rem; }

/* Auth / Login Styles */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #F8FAFC 0%, #E2E8F0 100%);
    padding: 2rem;
}
.auth-card {
    background: white;
    width: 100%;
    max-width: 450px;
    padding: 3rem;
    border-radius: 24px;
    box-shadow: 0 30px 60px rgba(10, 25, 47, 0.08);
    border: 1px solid white;
}
.auth-card .logo {
    text-align: center;
    margin-bottom: 2rem;
    font-size: 2rem;
}
.auth-card h2 {
    text-align: center;
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}
.auth-card p {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-size: 0.95rem;
}
.form-group { margin-bottom: 1.5rem; }
.form-label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--industry-blue);
    margin-bottom: 0.5rem;
}
.form-input {
    width: 100%;
    padding: 0.9rem 1.2rem;
    border-radius: 8px;
    border: 1px solid #E2E8F0;
    background: var(--bg-alt);
    color: var(--text-primary);
    font-family: 'Inter', sans-serif;
    font-size: 0.95rem;
    transition: 0.3s;
}
.form-input:focus {
    outline: none;
    border-color: var(--innovation-orange);
    box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
}
.form-checkbox {
    width: 1rem;
    height: 1rem;
    accent-color: var(--innovation-orange);
    cursor: pointer;
}
.auth-btn {
    width: 100%;
    text-align: center;
    margin-top: 1rem;
}
.auth-footer {
    text-align: center;
    margin-top: 2rem;
    font-size: 0.9rem;
}
.auth-footer a { color: var(--innovation-orange); font-weight: 600; text-decoration: none; }

/* CTA Section */
.cta-section { background: var(--industry-blue); color: white; text-align: center; border-radius: 32px; padding: 6rem 4rem; margin: 4rem 4rem; position: relative; overflow: hidden; }
.cta-section h2 { color: white; font-size: 3.5rem; margin-bottom: 1.5rem; }
.cta-section p { font-size: 1.2rem; color: rgba(255,255,255,0.8); max-width: 600px; margin: 0 auto 3rem; }
.cta-circle { position: absolute; top: -50%; right: -10%; width: 500px; height: 500px; border-radius: 50%; background: var(--innovation-orange); opacity: 0.1; filter: blur(60px); }

/* Footer */
footer { padding: 6rem 0 2rem; border-top: 1px solid #E2E8F0; background: white; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 4rem; margin-bottom: 4rem; }
.footer-col h4 { font-family: 'Space Grotesk', sans-serif; font-size: 0.85rem; letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 1.5rem; color: var(--industry-blue); }
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 0.8rem; }
.footer-col ul a { color: var(--text-secondary); text-decoration: none; font-size: 0.95rem; transition: 0.2s; }
.footer-col ul a:hover { color: var(--innovation-orange); }
.footer-bottom { text-align: center; border-top: 1px solid #F1F5F9; padding-top: 2rem; color: var(--text-secondary); font-size: 0.85rem; }

@media (max-width: 1024px) {
    /* Mobile Navigation */
    .hamburger { display: flex; }
    
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 300px;
        height: 100vh;
        background: rgba(255, 255, 255, 0.7);
        backdrop-filter: blur(25px);
        -webkit-backdrop-filter: blur(25px);
        border-left: 1px solid rgba(255, 255, 255, 0.5);
        flex-direction: column;
        justify-content: center;
        padding: 2rem;
        transition: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
        z-index: 10000;
        box-shadow: -10px 0 30px rgba(0,0,0,0.1);
    }
    
    .nav-menu.active { right: 0; }
    
    .hamburger.active span:nth-child(1) { transform: translateY(9px) rotate(45deg); }
    .hamburger.active span:nth-child(2) { opacity: 0; }
    .hamburger.active span:nth-child(3) { transform: translateY(-9px) rotate(-45deg); }
    
    .nav-links { flex-direction: column; gap: 2rem; align-items: center; width: 100%; margin-bottom: 2rem; }
    .nav-actions { flex-direction: column; width: 100%; align-items: center; }
    
    header nav { padding: 0 2rem; }
    .container { padding: 0 2rem; }

    /* Other Mobile Adjustments */
    .hero-grid, .process-grid, .split-section, .fleet-grid, .stats-grid, .footer-grid, .cargo-grid { grid-template-columns: 1fr; }
    .hero-image-wrapper { display: none; }
    .hero h1 { font-size: 4rem; }
    .cta-section { margin: 2rem; padding: 4rem 2rem; }
}