/* style-a.css — clean, professional landing style */

:root {
    --bg: #0f172a;
    --panel: rgba(255, 255, 255, 0.06);
    --border: rgba(255, 255, 255, 0.15);
    --text: #e5e7eb;
    --muted: #9ca3af;
    --accent: #60a5fa;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
    background: linear-gradient(180deg, #020617, #0f172a);
    color: var(--text);
}

/* Header */
.site-header {
    position: sticky;
    top: 0;
    background: rgba(2, 6, 23, 0.85);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--border);
}

.header-inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 14px 18px;
    display: flex;
    align-items: center;
    gap: 14px;
}

.site-brand {
    font-weight: 800;
    letter-spacing: 0.4px;
}

.site-nav {
    display: flex;
    gap: 12px;
    margin-left: auto;
}

.site-nav a {
    padding: 8px 10px;
    border-radius: 8px;
    color: var(--muted);
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
    color: var(--text);
    background: var(--panel);
    text-decoration: none;
}

.style-toggle {
    margin-left: 8px;
    padding: 8px 10px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--panel);
    color: var(--text);
    cursor: pointer;
}

/* Layout */
.page {
    max-width: 1100px;
    margin: 0 auto;
    padding: 40px 18px 80px;
}

/* Hero */
.hero {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 40px 22px;
    text-align: center;
}

.headshot {
    width: 200px;
    height: 200px;
    object-fit: cover;
    border-radius: 999px;
    border: 1px solid var(--border);
    margin-bottom: 20px;
}

.hero-title {
    font-size: 2.6rem;
    margin: 0 0 12px;
}

.hero-subtitle {
    max-width: 60ch;
    margin: 0 auto 20px;
    color: var(--muted);
    line-height: 1.6;
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 14px;
}

.button {
    padding: 10px 14px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.08);
    color: var(--text);
    font-weight: 600;
}

.button.primary {
    border-color: var(--accent);
}

.button:hover {
    background: rgba(255, 255, 255, 0.14);
    text-decoration: none;
}

/* Sections */
.section-title {
    margin: 40px 0 16px;
    font-size: 1.4rem;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.card {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 16px;
}

.card-title {
    margin: 0 0 8px;
}

.card-text {
    color: var(--muted);
    line-height: 1.6;
}

/* Footer */
.site-footer {
    border-top: 1px solid var(--border);
    padding: 24px;
    text-align: center;
    color: var(--muted);
}

/* Responsive */
@media (max-width: 900px) {
    .card-grid {
        grid-template-columns: 1fr;
    }

    .site-nav {
        flex-wrap: wrap;
        margin-left: 0;
    }
}