/* Premium Help Center Styles */

:root {
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --color-brand: #0ea5e9; /* Sky 500 */
    --color-brand-dark: #0369a1; /* Sky 700 */
    --color-text-main: #1f2937; /* Gray 800 */
    --color-text-muted: #4b5563; /* Gray 600 */
    --bg-page: #f9fafb; /* Gray 50 */
}

body {
    font-family: var(--font-sans);
    color: var(--color-text-main);
    background-color: var(--bg-page);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography Enhancements */
h1, h2, h3, h4, h5, h6 {
    letter-spacing: -0.025em;
    color: #111827; /* Gray 900 */
}

.premium-article {
    max-width: 65ch; /* Optimal reading width */
    margin: 0 auto;
    font-size: 1.125rem; /* 18px body text */
    line-height: 1.75;
}

.premium-article p {
    margin-bottom: 1.5rem;
    color: var(--color-text-muted);
}

.premium-article h2 {
    font-size: 1.875rem;
    font-weight: 700;
    margin-top: 3rem;
    margin-bottom: 1.25rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid #e5e7eb;
}

.premium-article h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.premium-article ul, .premium-article ol {
    margin-bottom: 1.5rem;
    margin-left: 1.5rem;
}

.premium-article li {
    margin-bottom: 0.5rem;
    padding-left: 0.5rem;
}

.premium-article a {
    color: var(--color-brand);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s;
}

.premium-article a:hover {
    border-bottom-color: var(--color-brand);
}

/* Custom Components */

/* Alert Box */
.premium-alert {
    border-radius: 0.5rem;
    background-color: #eff6ff; /* Blue 50 */
    border-left: 4px solid #3b82f6; /* Blue 500 */
    padding: 1rem 1.5rem;
    margin: 2rem 0;
}

/* Step Cards */
.step-card {
    background: white;
    border: 1px solid #e5e7eb;
    border-radius: 0.75rem;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.05);
    transition: box-shadow 0.2s;
}

.step-card:hover {
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

/* Success Box */
.success-box {
    background: #f0fdf4; /* Green 50 */
    border: 1px solid #bbf7d0; /* Green 200 */
    border-radius: 0.75rem;
    padding: 2rem;
    text-align: center;
    margin-top: 3rem;
}

/* Placeholder Blocks */
.placeholder-block {
    background-color: #f3f4f6;
    border: 2px dashed #d1d5db;
    border-radius: 0.5rem;
    padding: 3rem;
    text-align: center;
    color: #9ca3af;
    font-weight: 500;
    margin: 2rem 0;
}

/* Term Cards (Glossary) */
.term-card {
    transition: transform 0.2s, box-shadow 0.2s;
}

.term-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

/* Navigation Hierarchy */
.nav-link-active {
    color: var(--color-brand);
    border-bottom: 2px solid var(--color-brand);
}

/* Category Cards Override */
.category-card {
    transition: transform 0.2s, box-shadow 0.2s;
}

.category-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

/* Buttons */
.btn-primary {
    background-color: var(--color-brand);
    color: white;
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    border-radius: 0.375rem;
    transition: background-color 0.2s;
}

.btn-primary:hover {
    background-color: var(--color-brand-dark);
}