/* Reset & Base */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    color: #1a1a2e;
    line-height: 1.6;
    background: #fff;
}
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; height: auto; }

/* Container */
.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

/* Buttons */
.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.2s;
    cursor: pointer;
    border: none;
}
.btn-primary {
    background: #2563eb;
    color: #fff;
}
.btn-primary:hover { background: #1d4ed8; transform: translateY(-1px); }
.btn-outline {
    border: 2px solid #fff;
    color: #fff;
    background: transparent;
}
.btn-outline:hover { background: rgba(255,255,255,0.15); }
.btn-nav {
    background: #2563eb;
    color: #fff;
    padding: 10px 24px;
    font-size: 0.9rem;
}
.btn-nav:hover { background: #1d4ed8; }

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid #e5e7eb;
    padding: 16px 0;
}
.nav-container { display: flex; align-items: center; justify-content: space-between; }
.nav-logo { display: flex; align-items: center; gap: 10px; }
.logo-img { height: 40px; width: auto; }
.logo-text { font-size: 1.4rem; font-weight: 800; color: #1a1a2e; }
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a { font-weight: 500; color: #4b5563; transition: color 0.2s; }
.nav-links a:hover { color: #2563eb; }
.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 4px; }
.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: #1a1a2e;
    margin: 6px 0;
    transition: 0.3s;
}

/* Hero */
.hero {
    padding: 160px 0 100px;
    background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 50%, #2563eb 100%);
    color: #fff;
    text-align: center;
}
.hero h1 {
    font-size: clamp(2.2rem, 5vw, 3.5rem);
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 24px;
}
.hero-logo { max-width: 320px; margin-bottom: 32px; }
.highlight { color: #60a5fa; }
.hero-sub {
    font-size: 1.15rem;
    max-width: 640px;
    margin: 0 auto 40px;
    opacity: 0.9;
    line-height: 1.7;
}
.hero-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* Sections */
.section { padding: 96px 0; }
.section-dark { background: #f8fafc; }
.section-title {
    font-size: 2rem;
    font-weight: 800;
    text-align: center;
    margin-bottom: 16px;
}
.section-sub {
    text-align: center;
    color: #6b7280;
    max-width: 500px;
    margin: 0 auto 48px;
}

/* About */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; margin-top: 48px; }
.about-text p { color: #4b5563; margin-bottom: 16px; font-size: 1.05rem; }
.stats-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.stat {
    background: #f0f7ff;
    border-radius: 12px;
    padding: 28px;
    text-align: center;
}
.stat-number { display: block; font-size: 2.2rem; font-weight: 800; color: #2563eb; }
.stat-label { display: block; font-size: 0.85rem; color: #6b7280; margin-top: 4px; font-weight: 500; }

/* Cards */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 24px; margin-top: 48px; }
.card {
    background: #fff;
    border-radius: 12px;
    padding: 36px 28px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.06);
    transition: transform 0.2s, box-shadow 0.2s;
}
.card:hover { transform: translateY(-4px); box-shadow: 0 8px 24px rgba(0,0,0,0.08); }
.card-icon { font-size: 2rem; margin-bottom: 16px; }
.card h3 { font-size: 1.15rem; margin-bottom: 10px; font-weight: 700; }
.card p { color: #6b7280; font-size: 0.95rem; }

/* Opportunities */
.opp-content { max-width: 640px; margin: 48px auto 0; }
.opp-text h3 { font-size: 1.5rem; font-weight: 700; margin-bottom: 16px; }
.opp-text p { color: #4b5563; margin-bottom: 24px; font-size: 1.05rem; }
.opp-list { margin-bottom: 32px; }
.opp-list li {
    padding: 10px 0;
    padding-left: 28px;
    position: relative;
    color: #4b5563;
}
.opp-list li::before {
    content: "\2713";
    position: absolute;
    left: 0;
    color: #2563eb;
    font-weight: 700;
}

/* Contact */
.contact-grid { display: grid; grid-template-columns: 1fr 1.5fr; gap: 48px; margin-top: 48px; align-items: start; }
.contact-info { display: flex; flex-direction: column; gap: 24px; }
.contact-item strong { display: block; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.5px; color: #6b7280; margin-bottom: 4px; }
.contact-item a { color: #2563eb; font-size: 1.1rem; font-weight: 500; }
.contact-form { display: flex; flex-direction: column; gap: 16px; }
.contact-form input,
.contact-form textarea {
    padding: 14px 18px;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    background: #fff;
    transition: border-color 0.2s;
}
.contact-form input:focus,
.contact-form textarea:focus { outline: none; border-color: #2563eb; }

/* Footer */
.footer {
    padding: 32px 0;
    border-top: 1px solid #e5e7eb;
}
.footer-content { display: flex; justify-content: space-between; align-items: center; }
.footer-content p { color: #9ca3af; font-size: 0.9rem; }
.social-links { display: flex; gap: 20px; }
.social-links a { color: #9ca3af; font-weight: 600; font-size: 0.9rem; transition: color 0.2s; }
.social-links a:hover { color: #2563eb; }

/* Mobile */
@media (max-width: 768px) {
    .nav-toggle { display: block; }
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        padding: 24px;
        gap: 16px;
        border-bottom: 1px solid #e5e7eb;
    }
    .nav-links.active { display: flex; }
    .hero { padding: 130px 0 80px; }
    .about-grid { grid-template-columns: 1fr; gap: 40px; }
    .contact-grid { grid-template-columns: 1fr; }
    .footer-content { flex-direction: column; gap: 16px; text-align: center; }
}