/* Light article theme, matched to blog1.css */
:root {
    --page-bg: #f4f7fb;
    --surface: #ffffff;
    --surface-soft: #f0f5fc;
    --text: #273449;
    --heading: #172b4d;
    --accent: #2454a6;
    --accent-hover: #193f82;
    --border: #e1e8f0;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background: var(--page-bg);
    color: var(--text);
    font-family: 'Poppins', sans-serif;
    font-size: 17px;
    line-height: 1.8;
}

.hero {
    max-width: 1000px;
    margin: 48px auto 36px;
    padding: 0 20px;
    text-align: center;
}

.badge {
    display: inline-block;
    margin-bottom: 20px;
    padding: 7px 16px;
    border: 1px solid #d7e4f6;
    border-radius: 999px;
    background: #eaf1fb;
    color: var(--accent);
    font-size: 14px;
    font-weight: 600;
}

.hero h1 {
    margin: 0 auto 18px;
    color: var(--heading);
    font-size: clamp(30px, 5vw, 42px);
    line-height: 1.3;
}

.meta {
    margin-bottom: 25px;
    color: #526176;
    font-size: 15px;
}

.cover {
    display: block;
    width: 100%;
    height: auto;
    border: 1px solid var(--border);
    border-radius: 16px;
    box-shadow: 0 8px 24px rgba(34, 54, 82, 0.1);
}

.container {
    max-width: 900px;
    margin: 0 auto 56px;
    padding: 20px;
}

.container > p {
    max-width: 72ch;
    margin: 0 0 20px;
    color: var(--text);
}

.lead {
    margin-bottom: 30px !important;
    font-size: 19px;
}

blockquote {
    max-width: 72ch;
    margin: 30px 0;
    padding: 20px 24px;
    border-left: 4px solid var(--accent);
    border-radius: 0 12px 12px 0;
    background: var(--surface-soft);
    color: #34445c;
    font-style: italic;
}

.container > h2 {
    margin: 36px 0 12px;
    color: var(--accent);
    font-size: 26px;
    line-height: 1.4;
}

.highlight,
.about,
.next,
.progress-card {
    margin: 28px 0;
    padding: 24px;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: var(--surface);
    box-shadow: 0 5px 18px rgba(34, 54, 82, 0.05);
}

.about {
    background: var(--surface-soft);
}

.highlight h3,
.about h3,
.next h3,
.progress-card h3 {
    margin: 0 0 12px;
    color: var(--heading);
    font-size: 20px;
    line-height: 1.4;
}

.highlight p,
.about p,
.next p {
    margin: 0 0 12px;
}

.highlight p:last-child,
.about p:last-child,
.next p:last-child {
    margin-bottom: 0;
}

.highlight ul,
.progress-card ul {
    margin: 0;
    padding-left: 22px;
}

.highlight li,
.progress-card li {
    margin: 5px 0;
}

.button {
    display: inline-block;
    margin-top: 20px;
    padding: 11px 22px;
    border-radius: 8px;
    background: var(--accent);
    color: #ffffff;
    font-weight: 600;
    text-decoration: none;
    transition: background-color 0.2s ease, transform 0.2s ease;
}

.button:hover {
    transform: translateY(-2px);
    background: var(--accent-hover);
}

.button:focus-visible {
    outline: 3px solid #8db7f4;
    outline-offset: 4px;
}

@media (max-width: 768px) {
    .hero {
        margin: 34px auto 26px;
    }

    .container {
        padding: 16px 20px;
    }

    .lead {
        font-size: 18px;
    }
}

@media (max-width: 480px) {
    body {
        font-size: 16px;
    }

    .badge {
        font-size: 13px;
    }

    .highlight,
    .about,
    .next,
    .progress-card {
        padding: 20px;
    }

    .container > h2 {
        font-size: 23px;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
    }
}