/* Modern Design System for Thales Thailand */
:root {
    --primary: #003399; /* Thales Blue */
    --accent: #00A3E0;
    --text: #1a1a1a;
    --text-muted: #666;
    --bg: #ffffff;
    --bg-alt: #f8fafc;
    --border: #e2e8f0;
    --shadow: 0 10px 30px rgba(0, 51, 153, 0.08);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    color: var(--text);
    background-color: var(--bg);
    line-height: 1.6;
}

/* Typography */
h1, h2, h3 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--primary);
}

h1 { font-size: 3.5rem; margin-bottom: 1.5rem; }
h2 { font-size: 2.5rem; margin-bottom: 2rem; text-align: center; }
h3 { font-size: 1.5rem; margin-bottom: 1rem; }

p { font-size: 1.1rem; color: var(--text-muted); margin-bottom: 1.5rem; }

/* Navigation */
nav {
    padding: 1.5rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--border);
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.nav-links a {
    text-decoration: none;
    color: var(--text);
    font-weight: 500;
    transition: var(--transition);
}

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

.btn-back {
    padding: 0.8rem 1.5rem;
    background: var(--primary);
    color: white !important;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.9rem;
}

.btn-back:hover {
    background: var(--accent);
    transform: translateY(-2px);
}

/* Hero Section */
.hero {
    height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 5%;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #f0f7ff 0%, #ffffff 100%);
}

.hero-content {
    max-width: 800px;
    z-index: 2;
    text-align: center;
}

.hero::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    /* Hero image will be here */
    opacity: 0.15;
    z-index: 1;
}

/* Products Section */
.section {
    padding: 6rem 5%;
}

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

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    margin-top: 3rem;
}

.product-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--border);
    display: flex;
    flex-direction: column;
}

.product-card:hover {
    transform: translateY(-10px);
}

.product-img {
    height: 250px;
    background-color: #f0f4f8;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.product-img img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.product-info {
    padding: 2rem;
    flex-grow: 1;
}

.tag {
    display: inline-block;
    padding: 0.3rem 0.8rem;
    background: var(--bg-alt);
    color: var(--primary);
    border-radius: 10px;
    font-size: 0.8rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

/* Features List */
.features-list {
    list-style: none;
    margin-top: 1rem;
}

.features-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
    color: var(--text-muted);
}

.features-list li::before {
    content: '✓';
    color: var(--accent);
    font-weight: bold;
}

/* Use Cases Section */
.use-cases {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.case-card {
    padding: 2rem;
    background: white;
    border-radius: 16px;
    text-align: center;
    border: 1px solid var(--border);
}

.case-icon {
    width: 60px;
    height: 60px;
    background: var(--bg-alt);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 1.5rem;
}

/* Contact Section */
footer {
    background: var(--primary);
    color: white;
    padding: 5rem 5% 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 4rem;
    margin-bottom: 4rem;
}

.footer-info h4 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    text-align: center;
    font-size: 0.9rem;
    opacity: 0.8;
}

/* Animations */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate {
    animation: fadeInUp 0.8s ease forwards;
}

/* Responsive */
@media (max-width: 768px) {
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    .nav-links { display: none; }
}