/**
 * IB Math Master — AA vs AI Page
 * File: assets/css/aa-vs-ai.css
 * Loaded conditionally on /aa-vs-ai/ via is_page()
 *
 * Dependencies: tokens.css (variables), shared.css (FAQ, CTA, buttons)
 * Astra owns: body, h1-h6 base sizes, links, primary buttons, container
 * Prefix: aavi- to avoid collisions
 */


/* =========================================
   HERO — Light Gradient
   ========================================= */

.aavi-hero {
    background: linear-gradient(160deg, #f0f7ff 0%, #e8f2fc 40%, #f5f8ff 100%);
    border-bottom: 1px solid var(--ib-border);
    overflow: hidden;
    padding: 100px 0 90px;
    position: relative;
}

.aavi-hero::before {
    background: radial-gradient(circle, rgba(56, 189, 248, 0.08) 0%, transparent 65%);
    border-radius: var(--ib-radius-circle);
    content: '';
    height: 450px;
    position: absolute;
    right: -80px;
    top: -120px;
    width: 450px;
}

.aavi-hero::after {
    background: radial-gradient(circle, rgba(28, 64, 112, 0.04) 0%, transparent 65%);
    border-radius: var(--ib-radius-circle);
    bottom: -60px;
    content: '';
    height: 300px;
    left: 5%;
    position: absolute;
    width: 300px;
}

.aavi-hero-grid {
    align-items: center;
    display: grid;
    gap: var(--ib-space-64);
    grid-template-columns: 1fr 380px;
    position: relative;
    z-index: 1;
}

.aavi-hero-tag {
    background: rgba(28, 64, 112, 0.08);
    border-radius: 6px;
    color: var(--ib-navy-light);
    display: inline-block;
    font-size: var(--ib-font-size-sm);
    font-weight: 700;
    letter-spacing: 1px;
    margin-bottom: var(--ib-space-20);
    padding: var(--ib-space-6) var(--ib-space-16);
    text-transform: uppercase;
}

.aavi-hero h1 {
    color: var(--ib-navy);
    font-size: 40px;
    font-weight: 800;
    line-height: 1.15;
    margin: 0 0 var(--ib-space-16);
}

.aavi-hero h1 span {
    color: var(--ib-accent-hover);
}

.aavi-hero-sub {
    color: var(--ib-text-secondary);
    font-size: var(--ib-font-size-body);
    line-height: 1.65;
    margin-bottom: var(--ib-space-24);
}

.aavi-hero-credentials {
    display: flex;
    flex-wrap: wrap;
    gap: var(--ib-space-12);
    margin-bottom: var(--ib-space-20);
}

.aavi-hero-credential {
    align-items: center;
    background: rgba(28, 64, 112, 0.06);
    border-radius: var(--ib-radius-xs);
    border: 1px solid rgba(28, 64, 112, 0.1);
    color: var(--ib-text-secondary);
    display: inline-flex;
    font-size: 14px;
    gap: var(--ib-space-6);
    padding: var(--ib-space-10) var(--ib-space-20);
}

.aavi-hero-credential strong {
    color: var(--ib-navy-light);
    font-weight: 700;
}

.aavi-hero-meta {
    color: var(--ib-text-muted);
    font-size: var(--ib-font-size-sm);
    margin-top: var(--ib-space-8);
}


/* =========================================
   GLANCE CARD — Navy sidebar in hero
   ========================================= */

.aavi-glance {
    background: linear-gradient(135deg, var(--ib-navy-light) 0%, #225484 100%);
    border-radius: var(--ib-radius-md);
    box-shadow: var(--ib-shadow-hero-card);
    padding: var(--ib-space-28) var(--ib-space-24);
}

.aavi-glance-title {
    color: rgba(255, 255, 255, 0.5);
    font-size: var(--ib-font-size-xs);
    font-weight: 700;
    letter-spacing: 1px;
    margin-bottom: var(--ib-space-16);
    text-align: center;
    text-transform: uppercase;
}

.aavi-glance-grid {
    align-items: start;
    display: grid;
    gap: var(--ib-space-20);
    grid-template-columns: 1fr 1fr;
}

.aavi-glance-col {
    text-align: center;
}

.aavi-glance-label {
    border-bottom: 2px solid;
    color: var(--ib-white);
    font-size: 14px;
    font-weight: 700;
    margin-bottom: var(--ib-space-12);
    padding-bottom: var(--ib-space-8);
}

.aavi-glance-col:first-child .aavi-glance-label {
    border-color: var(--ib-accent);
}

.aavi-glance-col:last-child .aavi-glance-label {
    border-color: #818cf8;
}

.aavi-glance-item {
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--ib-font-size-sm);
    line-height: 1.4;
    padding: var(--ib-space-6) 0;
}


/* =========================================
   SECTION HEADER — Centered (page-wide)
   ========================================= */

.aavi-section-header {
    margin: 0 auto var(--ib-space-48);
    max-width: 720px;
    text-align: center;
}

.aavi-section-header h2 {
    color: var(--ib-navy);
    font-size: 32px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--ib-space-14);
}

.aavi-section-header h2 span {
    color: var(--ib-accent-hover);
}

.aavi-section-header p {
    color: var(--ib-text-muted);
    font-size: var(--ib-font-size-md);
    line-height: 1.75;
    margin-bottom: var(--ib-space-8);
}

.aavi-section-header p:last-child {
    margin-bottom: 0;
}


/* =========================================
   SECTION BACKGROUNDS
   ========================================= */

.aavi-section {
    border-bottom: 1px solid var(--ib-border);
    padding: var(--ib-section-pad) 0;
}

.aavi-section--light {
    background: var(--ib-light);
}


/* =========================================
   INTRO SECTION
   ========================================= */

.aavi-intro p {
    color: var(--ib-text-secondary);
    font-size: var(--ib-font-size-md);
    line-height: 1.75;
    margin-bottom: var(--ib-space-16);
    max-width: 720px;
}

.aavi-intro-factors {
    display: grid;
    gap: var(--ib-space-12);
    grid-template-columns: 1fr 1fr;
    margin-top: var(--ib-space-24);
}

.aavi-intro-factor {
    align-items: center;
    background: var(--ib-light);
    border-radius: var(--ib-radius-xs);
    border: 1px solid var(--ib-border);
    color: var(--ib-text-secondary);
    display: flex;
    font-size: 14px;
    gap: var(--ib-space-10);
    padding: var(--ib-space-14) var(--ib-space-16);
}

.aavi-intro-dot {
    background: var(--ib-accent);
    border-radius: var(--ib-radius-circle);
    flex-shrink: 0;
    height: 8px;
    width: 8px;
}


/* =========================================
   COURSE DETAIL CARDS
   ========================================= */

.aavi-course-grid {
    display: grid;
    gap: var(--ib-space-24);
    grid-template-columns: 1fr 1fr;
    margin-bottom: var(--ib-space-40);
}

.aavi-course-card {
    background: var(--ib-white);
    border-radius: var(--ib-radius-md);
    border: 1px solid var(--ib-border);
    overflow: hidden;
    padding: var(--ib-space-32) var(--ib-space-28);
    position: relative;
}

.aavi-course-card::before {
    content: '';
    height: 3px;
    left: 0;
    position: absolute;
    top: 0;
    width: 100%;
}

.aavi-course-card--aa::before {
    background: linear-gradient(90deg, var(--ib-navy), var(--ib-accent));
}

.aavi-course-card--ai::before {
    background: linear-gradient(90deg, #7c7cf0, #818cf8);
}

.aavi-course-label {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 1px;
    margin-bottom: var(--ib-space-6);
    text-transform: uppercase;
}

.aavi-course-card--aa .aavi-course-label {
    color: var(--ib-accent-hover);
}

.aavi-course-card--ai .aavi-course-label {
    color: var(--ib-course-ai-hl);
}

.aavi-course-card h3 {
    color: var(--ib-navy);
    font-size: var(--ib-font-size-xl);
    font-weight: 700;
    margin-bottom: var(--ib-space-14);
}

.aavi-course-card p {
    color: var(--ib-text-secondary);
    font-size: var(--ib-font-size-base);
    line-height: 1.7;
    margin-bottom: var(--ib-space-12);
}

.aavi-course-card p:last-child {
    margin-bottom: 0;
}


/* =========================================
   COMPARISON TABLE
   ========================================= */

.aavi-compare-table {
    background: var(--ib-white);
    border-collapse: collapse;
    border-radius: var(--ib-radius-sm);
    border: 1px solid var(--ib-border);
    overflow: hidden;
    width: 100%;
}

.aavi-compare-table th {
    font-size: var(--ib-font-size-sm);
    font-weight: 700;
    letter-spacing: 0.5px;
    padding: var(--ib-space-14) var(--ib-space-16);
    text-align: left;
    text-transform: uppercase;
}

.aavi-compare-table th:first-child {
    background: var(--ib-light);
    color: var(--ib-text-muted);
    width: 200px;
}

.aavi-compare-table th:nth-child(2) {
    background: rgba(14, 165, 233, 0.08);
    color: #0284c7;
}

.aavi-compare-table th:nth-child(3) {
    background: rgba(99, 102, 241, 0.08);
    color: var(--ib-course-ai-hl);
}

.aavi-compare-table td {
    border-top: 1px solid #f1f5f9;
    color: var(--ib-text-secondary);
    font-size: 14px;
    padding: var(--ib-space-14) var(--ib-space-16);
}

.aavi-compare-table td:first-child {
    background: var(--ib-off-white);
    color: var(--ib-navy);
    font-weight: 600;
}


/* =========================================
   FIT SUMMARY
   ========================================= */

.aavi-fit-summary {
    display: grid;
    gap: var(--ib-space-20);
    grid-template-columns: 1fr 1fr;
    margin-top: var(--ib-space-32);
}

.aavi-fit-col {
    border-radius: var(--ib-radius-xs);
    border: 1px solid var(--ib-border);
    padding: var(--ib-space-20) var(--ib-space-24);
}

.aavi-fit-col--aa {
    background: var(--ib-accent-bg);
    border-color: var(--ib-accent-soft);
}

.aavi-fit-col--ai {
    background: #f5f3ff;
    border-color: #e0ddfc;
}

.aavi-fit-col h4 {
    color: var(--ib-navy);
    font-size: 14px;
    font-weight: 700;
    margin-bottom: var(--ib-space-6);
}

.aavi-fit-col p {
    color: var(--ib-text-secondary);
    font-size: 14px;
    line-height: 1.6;
    margin: 0;
}


/* =========================================
   SL vs HL TABLE
   ========================================= */

.aavi-slhl-table {
    background: var(--ib-light);
    border-collapse: collapse;
    border-radius: var(--ib-radius-sm);
    border: 1px solid var(--ib-border);
    overflow: hidden;
    width: 100%;
}

.aavi-slhl-table th {
    background: #f1f5f9;
    color: var(--ib-text-muted);
    font-size: var(--ib-font-size-xs);
    font-weight: 700;
    letter-spacing: 0.5px;
    padding: var(--ib-space-12) var(--ib-space-16);
    text-align: left;
    text-transform: uppercase;
}

.aavi-slhl-table td {
    border-top: 1px solid var(--ib-border);
    color: var(--ib-text-secondary);
    font-size: 14px;
    padding: var(--ib-space-12) var(--ib-space-16);
}

.aavi-slhl-table td:first-child {
    color: var(--ib-navy);
    font-weight: 600;
}


/* =========================================
   ASSESSMENT — Pills + Exam Cards
   ========================================= */

.aavi-assess-pills {
    display: flex;
    gap: var(--ib-space-16);
    margin-bottom: var(--ib-space-40);
}

.aavi-pill {
    border-radius: var(--ib-radius-xs);
    font-size: 14px;
    font-weight: 600;
    padding: var(--ib-space-10) var(--ib-space-24);
}

.aavi-pill--exam {
    background: rgba(14, 165, 233, 0.1);
    color: #0284c7;
}

.aavi-pill--ia {
    background: rgba(16, 185, 129, 0.1);
    color: #059669;
}

.aavi-exam-grid {
    display: grid;
    gap: var(--ib-space-20);
    grid-template-columns: 1fr 1fr;
}

.aavi-exam-card {
    background: var(--ib-white);
    border-radius: var(--ib-radius-sm);
    border: 1px solid var(--ib-border);
    overflow: hidden;
}

.aavi-exam-header {
    color: var(--ib-white);
    font-size: var(--ib-font-size-md);
    font-weight: 700;
    padding: var(--ib-space-16) var(--ib-space-20);
}

.aavi-exam-header--aa {
    background: linear-gradient(135deg, var(--ib-navy-light), #225484);
}

.aavi-exam-header--ai {
    background: linear-gradient(135deg, var(--ib-course-ai-hl), #818cf8);
}

.aavi-exam-row {
    align-items: center;
    color: var(--ib-text-secondary);
    display: flex;
    font-size: 14px;
    justify-content: space-between;
    padding: var(--ib-space-12) var(--ib-space-20);
}

.aavi-exam-row:not(:last-child) {
    border-bottom: 1px solid #f1f5f9;
}

.aavi-exam-name {
    color: var(--ib-navy);
    font-weight: 600;
}

.aavi-exam-detail {
    align-items: center;
    display: flex;
    gap: var(--ib-space-12);
}

.aavi-badge {
    border-radius: var(--ib-space-12);
    font-size: 11px;
    font-weight: 700;
    padding: 3px var(--ib-space-10);
}

.aavi-badge--no-calc {
    background: #fef2f2;
    color: #dc2626;
}

.aavi-badge--calc {
    background: #f0fdf4;
    color: #16a34a;
}


/* =========================================
   IA SECTION
   ========================================= */

.aavi-ia-grid {
    display: grid;
    gap: var(--ib-space-24);
    grid-template-columns: 1fr 1fr;
    margin-bottom: var(--ib-space-32);
}

.aavi-ia-card {
    border-radius: var(--ib-radius-sm);
    border: 1px solid var(--ib-border);
    overflow: hidden;
    padding: var(--ib-space-28) var(--ib-space-24);
    position: relative;
}

.aavi-ia-card::before {
    content: '';
    height: 3px;
    left: 0;
    position: absolute;
    top: 0;
    width: 100%;
}

.aavi-ia-card--aa {
    background: var(--ib-accent-bg);
}

.aavi-ia-card--aa::before {
    background: var(--ib-accent-hover);
}

.aavi-ia-card--ai {
    background: #f5f3ff;
}

.aavi-ia-card--ai::before {
    background: #818cf8;
}

.aavi-ia-card h3 {
    color: var(--ib-navy);
    font-size: var(--ib-font-size-body);
    font-weight: 700;
    margin-bottom: var(--ib-space-10);
}

.aavi-ia-card p {
    color: var(--ib-text-secondary);
    font-size: var(--ib-font-size-base);
    line-height: 1.7;
    margin: 0;
}

.aavi-ia-link {
    margin-top: var(--ib-space-24);
}

.aavi-ia-link a {
    color: var(--ib-accent-hover);
    font-size: var(--ib-font-size-base);
    font-weight: 600;
    text-decoration: none;
}

.aavi-ia-link a:hover {
    text-decoration: underline;
}


/* =========================================
   FAQ ACCENT BAR
   (FAQ structure uses shared.css classes;
    only the accent bar is page-specific)
   ========================================= */

.aavi-faq-accent {
    background: var(--ib-accent);
    border-radius: 2px;
    height: 3px;
    margin-top: var(--ib-space-20);
    width: 48px;
}


/* =========================================
   RESPONSIVE — 1024px
   ========================================= */

@media (max-width: 1024px) {
    .aavi-hero-grid {
        gap: var(--ib-space-40);
        grid-template-columns: 1fr;
    }

    .aavi-glance {
        max-width: 400px;
    }

    .aavi-course-grid,
    .aavi-ia-grid,
    .aavi-exam-grid,
    .aavi-fit-summary {
        grid-template-columns: 1fr;
    }

    .aavi-intro-factors {
        grid-template-columns: 1fr;
    }
}


/* =========================================
   RESPONSIVE — 768px
   ========================================= */

@media (max-width: 768px) {
    .aavi-hero {
        padding: 72px 0 56px;
    }

    .aavi-hero h1 {
        font-size: 30px;
    }

    .aavi-section-header h2 {
        font-size: 26px;
    }
}