/* Base reset-ish */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    line-height: 1.6;
    color: #111827;
    background-color: #f9fafb;
}

/* Layout helpers */
.container {
    max-width: 1080px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section {
    padding: 4rem 0;
}

.section-alt {
    padding: 4rem 0;
    background-color: #eef2f7;
}

.section h2 {
    font-size: 1.9rem;
    margin-bottom: 1rem;
}

.section-intro {
    max-width: 44rem;
    margin-bottom: 2.5rem;
    color: #4b5563;
}

/* Header */
.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    background-color: #0b1120;
    color: #e5e7eb;
    box-shadow: 0 1px 4px rgba(15, 23, 42, 0.5);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.8rem 1.5rem;
}

.logo-main {
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    font-size: 0.9rem;
}

.logo-sub {
    display: block;
    font-size: 0.75rem;
    color: #9ca3af;
}

.main-nav a {
    margin-left: 1.2rem;
    font-size: 0.9rem;
    color: #e5e7eb;
    text-decoration: none;
}

.main-nav a:hover {
    color: #93c5fd;
}

/* Hero */
.hero {
    background: radial-gradient(circle at top left, #0f172a, #020617);
    color: #e5e7eb;
    padding: 5rem 0 4rem;
}

.hero-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.hero-text h1 {
    font-size: 2.4rem;
    line-height: 1.2;
    margin-bottom: 1.2rem;
}

.hero-text p {
    max-width: 36rem;
    margin-bottom: 1.5rem;
    color: #d1d5db;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.btn-primary,
.btn-secondary {
    display: inline-block;
    padding: 0.6rem 1.2rem;
    border-radius: 999px;
    font-size: 0.9rem;
    font-weight: 500;
    text-decoration: none;
    border: 1px solid transparent;
}

.btn-primary {
    background-color: #2563eb;
    color: #f9fafb;
    border-color: #1d4ed8;
}

.btn-primary:hover {
    background-color: #1d4ed8;
}

.btn-secondary {
    background-color: transparent;
    color: #e5e7eb;
    border-color: #4b5563;
}

.btn-secondary:hover {
    border-color: #9ca3af;
}

.hero-meta {
    font-size: 0.85rem;
    color: #9ca3af;
}

/* Cards & grid */
.grid {
    display: grid;
    gap: 1.5rem;
}

.grid.three {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card {
    background-color: #ffffff;
    border-radius: 0.75rem;
    padding: 1.5rem;
    box-shadow: 0 1px 4px rgba(15, 23, 42, 0.08);
}

.section-alt .card {
    background-color: #ffffff;
}

.card h3 {
    font-size: 1.05rem;
    margin-bottom: 0.6rem;
}

.card p {
    font-size: 0.95rem;
    color: #4b5563;
}

.card ul {
    list-style: disc;
    padding-left: 1.1rem;
    font-size: 0.93rem;
    color: #4b5563;
}

.card ul li + li {
    margin-top: 0.25rem;
}

/* About */
.about-layout {
    display: flex;
    gap: 2rem;
}

.about-text {
    flex: 2;
}

.about-text h3 {
    font-size: 1.1rem;
    margin-bottom: 0.75rem;
}

/* Contact */
.contact-box {
    background-color: #0b1120;
    color: #e5e7eb;
    border-radius: 0.8rem;
    padding: 1.5rem;
}

.contact-box a {
    color: #93c5fd;
    text-decoration: none;
}

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

.contact-note {
    font-size: 0.85rem;
    color: #9ca3af;
    margin-top: 0.8rem;
}

/* Footer */
.site-footer {
    padding: 1.5rem 0 2rem;
    background-color: #020617;
    color: #9ca3af;
    font-size: 0.85rem;
}

.footer-inner {
    text-align: center;
}

.footer-small {
    margin-top: 0.25rem;
}

/* Responsive */
@media (max-width: 900px) {
    .grid.three {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .hero-inner {
        flex-direction: column;
        align-items: flex-start;
    }

    .main-nav {
        display: none; /* keep it simple for first cut; can add mobile nav later */
    }
}

@media (max-width: 640px) {
    .grid.three {
        grid-template-columns: 1fr;
    }

    .hero {
        padding-top: 4rem;
    }

    .header-inner {
        justify-content: space-between;
    }
}