:root {
    --bg: #ffffff;
    --text: #1f2933;
    --muted: #52606d;
    --accent: #0b5cad;
    --border: #e4e7eb;
    --hero-bg: #102a43;
    --hero-text: #f0f4f8;
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --bg: #121826;
        --text: #e4e7eb;
        --muted: #9aa5b1;
        --accent: #6cb4ff;
        --border: #2a3441;
        --hero-bg: #0b1320;
        --hero-text: #f0f4f8;
    }
}

:root[data-theme="dark"] {
    --bg: #121826;
    --text: #e4e7eb;
    --muted: #9aa5b1;
    --accent: #6cb4ff;
    --border: #2a3441;
    --hero-bg: #0b1320;
    --hero-text: #f0f4f8;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg);
}

.hero {
    background: var(--hero-bg);
    color: var(--hero-text);
    padding: 4rem 1rem;
    text-align: center;
}

.hero h1 {
    margin: 0 0 0.5rem;
    font-size: 2.25rem;
}

.tagline {
    margin: 0;
    color: var(--hero-text);
    opacity: 0.85;
}

main {
    max-width: 760px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

section {
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--border);
}

section:last-child {
    border-bottom: none;
}

h2 {
    font-size: 1.4rem;
    margin: 0 0 0.75rem;
}

p {
    margin: 0 0 0.75rem;
    color: var(--muted);
}

a {
    color: var(--accent);
    word-break: break-word;
}

.email {
    font-weight: 600;
}

footer {
    text-align: center;
    padding: 2rem 1rem;
    color: var(--muted);
    font-size: 0.9rem;
    border-top: 1px solid var(--border);
}

footer p {
    margin: 0;
    color: var(--muted);
}