/* ========================================
   CloudPOS.vu — Documentation Hub Styles
   ======================================== */

/* ========================================
   Page Hero (shared with features)
   ======================================== */

.page-hero {
    padding: 140px 0 60px;
    background: linear-gradient(135deg, #0f4a97 0%, #0d4a9c 38%, #0b3d8a 70%, #0a2d6b 100%);
    text-align: center;
}

.page-hero .container {
    max-width: 800px;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9375rem;
    font-weight: 500;
    margin-bottom: 24px;
    transition: color var(--transition-fast);
}

.back-link:hover {
    color: var(--white);
}

.page-hero .section-tag {
    background: rgba(255, 255, 255, 0.15);
    color: var(--white);
}

.page-hero h1 {
    color: var(--white);
    margin-bottom: 16px;
}

.page-subtitle {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.98);
    line-height: 1.7;
    text-shadow: 0 1px 12px rgba(0, 0, 0, 0.22);
}

/* ========================================
   Docs Section
   ======================================== */

.docs-section {
    padding: 80px 0;
}

.docs-section.alt-bg {
    background: var(--gray-50);
}

.docs-section-header {
    margin-bottom: 40px;
}

.docs-section-header h2 {
    font-size: 1.75rem;
    margin-bottom: 8px;
}

.docs-section-header p {
    color: var(--gray-600);
    font-size: 1.0625rem;
}

/* ========================================
   Doc Cards — Featured (2-col)
   ======================================== */

.docs-grid-featured {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.doc-card-hero {
    display: flex;
    flex-direction: column;
    padding: 32px;
    background: var(--white);
    border-radius: 20px;
    border: 1px solid var(--gray-200);
    transition: all var(--transition-base);
    text-decoration: none;
    color: inherit;
}

.doc-card-hero:hover {
    border-color: var(--primary-blue);
    box-shadow: var(--shadow-xl);
    transform: translateY(-4px);
}

.doc-card-hero .doc-card-icon {
    margin-bottom: 16px;
}

.doc-card-hero .doc-card-thumb {
    margin-top: 20px;
    border-radius: 12px;
    border: 1px solid var(--gray-200);
    overflow: hidden;
}

/* ========================================
   Doc Cards — Standard (3-col)
   ======================================== */

.docs-grid-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.doc-card {
    display: flex;
    flex-direction: column;
    padding: 28px;
    background: var(--white);
    border-radius: 16px;
    border: 1px solid var(--gray-200);
    transition: all var(--transition-base);
    text-decoration: none;
    color: inherit;
}

.doc-card:hover {
    border-color: var(--primary-blue);
    box-shadow: var(--shadow-lg);
    transform: translateY(-3px);
}

.doc-card .doc-card-thumb {
    margin-top: auto;
    padding-top: 16px;
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid var(--gray-100);
}

/* ========================================
   Doc Card — Wide (full width)
   ======================================== */

.doc-card-wide {
    display: flex;
    align-items: flex-start;
    gap: 24px;
    padding: 32px;
    background: var(--white);
    border-radius: 20px;
    border: 1px solid var(--gray-200);
    margin-bottom: 24px;
    transition: all var(--transition-base);
    text-decoration: none;
    color: inherit;
}

.doc-card-wide:hover {
    border-color: var(--primary-blue);
    box-shadow: var(--shadow-xl);
    transform: translateY(-3px);
}

.doc-card-wide .doc-card-icon {
    flex-shrink: 0;
}

/* ========================================
   Card Internals
   ======================================== */

.doc-card-icon {
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 14px;
    flex-shrink: 0;
}

.doc-card-icon svg {
    width: 26px;
    height: 26px;
}

.hero-icon {
    width: 56px;
    height: 56px;
    background: var(--gradient-primary);
    border-radius: 16px;
}

.hero-icon svg {
    width: 28px;
    height: 28px;
    stroke: var(--white);
}

.doc-card-body {
    flex: 1;
}

.doc-card-body h3 {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--gray-900);
}

.doc-card-body p {
    font-size: 0.9375rem;
    color: var(--gray-600);
    line-height: 1.6;
    margin-bottom: 12px;
}

.doc-card-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.8125rem;
    color: var(--gray-500);
}

.doc-badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.doc-badge.beginner {
    background: rgba(16, 185, 129, 0.1);
    color: #059669;
}

.doc-badge.intermediate {
    background: rgba(74, 144, 217, 0.1);
    color: var(--primary-blue);
}

.doc-badge.comprehensive {
    background: rgba(139, 92, 246, 0.1);
    color: #7c3aed;
}

/* ========================================
   Responsive
   ======================================== */

@media (max-width: 1024px) {
    .docs-grid-cards {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .docs-grid-featured {
        grid-template-columns: 1fr;
    }

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

    .doc-card-wide {
        flex-direction: column;
    }

    .docs-section {
        padding: 60px 0;
    }

    .page-hero {
        padding: 110px 0 40px;
    }
}