*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --text: #1a1a2e;
    --text-secondary: #4a4a6a;
    --bg: #ffffff;
    --bg-alt: #f7f8fb;
    --accent: #1b4d7a;
    --accent-hover: #143d62;
    --border: #e2e4ea;
    --max-width: 780px;
}

html {
    scroll-behavior: smooth;
}

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

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

/* Header */

header {
    border-bottom: 1px solid var(--border);
    padding: 18px 0;
    position: sticky;
    top: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(8px);
    z-index: 100;
}

header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-family: 'Lora', Georgia, serif;
    font-weight: 600;
    font-size: 18px;
    color: var(--accent);
    letter-spacing: -0.3px;
}

nav {
    display: flex;
    gap: 28px;
}

nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 13.5px;
    font-weight: 500;
    letter-spacing: 0.2px;
    transition: color 0.2s;
}

nav a:hover {
    color: var(--accent);
}

/* Hero */

.hero {
    padding: 80px 0 64px;
    border-bottom: 1px solid var(--border);
}

.overline {
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 1.8px;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 16px;
}

h1 {
    font-family: 'Lora', Georgia, serif;
    font-size: 38px;
    font-weight: 600;
    line-height: 1.25;
    color: var(--text);
    margin-bottom: 20px;
    letter-spacing: -0.5px;
}

.hero-sub {
    font-size: 17px;
    color: var(--text-secondary);
    line-height: 1.65;
    max-width: 620px;
}

/* Content Sections */

.content-section {
    padding: 64px 0;
}

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

h2 {
    font-family: 'Lora', Georgia, serif;
    font-size: 26px;
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 24px;
    color: var(--text);
    letter-spacing: -0.3px;
}

.content-section p {
    font-size: 15.5px;
    color: var(--text-secondary);
    margin-bottom: 18px;
    line-height: 1.75;
}

.content-section p:last-of-type {
    margin-bottom: 0;
}

/* CTA Button */

.cta {
    display: inline-block;
    margin-top: 32px;
    padding: 13px 32px;
    background: var(--accent);
    color: #ffffff;
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.3px;
    border-radius: 6px;
    transition: background 0.2s, transform 0.15s;
}

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

.cta:active {
    transform: translateY(0);
}

/* Footer */

footer {
    border-top: 1px solid var(--border);
    padding: 32px 0;
    text-align: center;
}

footer p {
    font-size: 13px;
    color: var(--text-secondary);
}

/* Responsive */

@media (max-width: 640px) {
    nav {
        display: none;
    }

    .hero {
        padding: 56px 0 48px;
    }

    h1 {
        font-size: 28px;
    }

    h2 {
        font-size: 22px;
    }

    .content-section {
        padding: 48px 0;
    }
}