@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    --primary: #0277bd; /* Sea Blue */
    --primary-hover: #01579b;
    --bg-color: #f4f8fb; /* Very light marine tint */
    --surface: #ffffff;
    --surface-border: #e1e8ed;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
}

/* RESET */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* BODY */
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
}

/* HEADER */
.header {
    padding: 60px 20px 40px;
    background: var(--surface);
    border-bottom: 1px solid var(--surface-border);
    text-align: center;
    box-shadow: 0 4px 6px -1px rgba(2, 119, 189, 0.05);
}

.header h1 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--primary);
}

.subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    font-weight: 500;
}

.updated {
    font-size: 14px;
    color: #9aa0a6;
    margin-top: 12px;
}

/* CONTAINER */
.container {
    max-width: 820px;
    margin: 40px auto;
    padding: 40px;
    background: var(--surface);
    border: 1px solid var(--surface-border);
    border-radius: 16px;
    box-shadow: 0 10px 25px -5px rgba(2, 119, 189, 0.05);
}

/* SECTIONS */
section {
    margin-bottom: 36px;
}

/* HEADINGS */
h2 {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--primary);
    border-bottom: 2px solid #e2e8f0;
    padding-bottom: 8px;
    text-align: left;
}

h3 {
    font-size: 18px;
    font-weight: 600;
    margin-top: 24px;
    margin-bottom: 12px;
    color: var(--text-primary);
    text-align: left;
}

/* TEXT */
p {
    margin-bottom: 16px;
    color: var(--text-secondary);
    text-align: left;
}

/* LISTS */
ul {
    padding-left: 24px;
    margin-bottom: 16px;
    text-align: left;
}

li {
    margin-bottom: 8px;
    color: var(--text-secondary);
    text-align: left;
}

/* FOOTER */
.footer {
    text-align: center;
    padding: 30px 20px;
    font-size: 14px;
    color: var(--text-secondary);
    margin-top: 20px;
}

/* LINKS */
a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
}

a:hover {
    color: var(--primary-hover);
    text-decoration: underline;
}

/* MOBILE */
@media (max-width: 600px) {
    .header {
        padding: 40px 16px 24px;
    }

    .header h1 {
        font-size: 26px;
    }

    .container {
        margin: 20px 16px;
        padding: 24px 20px;
    }
}