/* Reset & Base */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg: #fafafa;
    --bg-alt: #f0f0f0;
    --text: #1a1a1a;
    --text-muted: #6b6b6b;
    --accent: #1e40af;
    --accent-hover: #1d4ed8;
    --accent-gold: #b8860b;
    --border: #e0e0e0;
    --card-bg: #ffffff;
    --radius: 12px;
    --max-width: 960px;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.7;
    font-size: 16px;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* Hero */
.hero {
    padding: 120px 0 80px;
    text-align: center;
}

.hero-greeting {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-bottom: 12px;
}

.hero-name {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 700;
    letter-spacing: -1px;
    line-height: 1.1;
    margin-bottom: 12px;
}

.hero-title {
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--accent);
    margin-bottom: 24px;
}

.hero-summary {
    max-width: 600px;
    margin: 0 auto 36px;
    color: var(--text-muted);
    font-size: 1.05rem;
    line-height: 1.8;
}

/* Buttons */
.hero-cta {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.2s ease;
}

.btn-primary {
    background: var(--accent);
    color: #fff;
}

.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-1px);
}

.btn-secondary {
    background: transparent;
    color: var(--text);
    border: 1.5px solid var(--border);
}

.btn-secondary:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-1px);
}

.icon {
    width: 18px;
    height: 18px;
}

/* Sections */
.section {
    padding: 80px 0;
}

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

.section-title {
    font-size: 1.75rem;
    font-weight: 600;
    letter-spacing: -0.5px;
    margin-bottom: 40px;
    text-align: center;
}

.section-title::after {
    content: '';
    display: block;
    width: 40px;
    height: 3px;
    background: var(--accent);
    margin: 12px auto 0;
    border-radius: 2px;
}

/* Cards */
.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px 28px;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
    border-color: var(--accent);
}

.card-icon {
    font-size: 1.75rem;
    margin-bottom: 16px;
    color: var(--accent);
}

.card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Background Grid */
.background-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
}

.bg-item {
    display: flex;
    flex-direction: column;
    padding: 24px;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.bg-label {
    font-size: 0.8rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--accent);
    margin-bottom: 6px;
}

.bg-value {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.bg-detail {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* Personal */
.personal-text {
    max-width: 640px;
    margin: 0 auto;
    text-align: center;
    color: var(--text-muted);
    font-size: 1.05rem;
    line-height: 1.8;
}

.personal-text strong {
    color: #1a5632;
}

/* Footer */
.footer {
    padding: 40px 0;
    text-align: center;
    border-top: 1px solid var(--border);
}

.footer-link {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.2s;
}

.footer-link:hover {
    color: var(--accent);
}

.footer-sep {
    color: var(--border);
    margin: 0 8px;
}

.footer-copy {
    margin-top: 16px;
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Mobile */
@media (max-width: 640px) {
    .hero {
        padding: 80px 0 60px;
    }

    .section {
        padding: 60px 0;
    }

    .cards {
        grid-template-columns: 1fr;
    }

    .background-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 400px) {
    .background-grid {
        grid-template-columns: 1fr;
    }
}