/**
 * BuddyBoss Theme Child - Custom Stylesheet (Universal Accessibility Overrides)
 *
 * Senior AI Hub - Batch 4: The Polish Phase (WCAG 2.1 AAA Compliant)
 * - Typography Scaling: Base font-size 19px+, Headings 28px–34px+, Line-height 1.75
 * - Touch Targets: Minimum 48px x 48px on all interactive elements
 * - Contrast: Strict 7:1 ratio (Deep Slate on Pure White/Light Surface)
 * - Ergonomics: Safe-area insets, zero horizontal scrolling, single-column readability
 * - Multilingual UI Switcher: Lightweight client-side toggle styling
 * - GamiPress Active Aging Modal: Dignified golden celebration popup
 * - Anti-PII Security Alert: Visual warnings for blocked sensitive identifiers
 * - UAT Polish: Mobile safety offset (ISS-007) & prominent medical disclaimers (ISS-008)
 * - Portal Polish: Dedicated Senior Learning Portal Layout (ISS-009 Resolution)
 */

/* ==========================================================================
   1. Universal Design Typography & Readability (Subtask 4.1.1)
   ========================================================================== */
html,
body {
    font-size: 19px;
    line-height: 1.75;
    color: #1A202C;
    background-color: #FFFFFF;
    overflow-x: hidden;
    -webkit-text-size-adjust: 100%;
    -webkit-tap-highlight-color: transparent;
}

/* Fluid media */
img,
video,
iframe,
embed,
object {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
}

/* Optimal line length for senior cognitive load */
.entry-content,
.bb-lesson-content,
.activity-inner,
.bbp-topic-content,
.bbp-reply-content {
    max-width: 75ch;
    font-size: 19px !important;
    line-height: 1.8 !important;
}

/* Typography Hierarchy with strict contrast */
h1, .entry-title, .bb-title {
    font-size: 34px !important;
    font-weight: 700 !important;
    line-height: 1.35 !important;
    color: #1A365D !important;
    letter-spacing: -0.01em;
}

h2 {
    font-size: 28px !important;
    font-weight: 700 !important;
    line-height: 1.4 !important;
    color: #1A365D !important;
    margin-top: 2rem !important;
}

h3 {
    font-size: 24px !important;
    font-weight: 600 !important;
    line-height: 1.45 !important;
    color: #2D3748 !important;
    margin-top: 1.5rem !important;
}

/* Links with high contrast and explicit focus indicator */
a {
    color: #0D47A1;
    text-decoration: underline;
    text-decoration-thickness: 1.5px;
    text-underline-offset: 3px;
    transition: color 0.2s ease;
}

a:hover,
a:focus {
    color: #1565C0;
    text-decoration-thickness: 2.5px;
}

/* ==========================================================================
   2. Touch Target Optimization - Minimum 48px (Subtask 4.1.2)
   ========================================================================== */
.bb-mobile-nav a,
.bb-mobile-panel-header .bb-close-panel,
.bp-feedback,
.button,
button,
a.button,
input[type="button"],
input[type="reset"],
input[type="submit"],
.bb-course-item-wrap .btn,
.gamipress-badge-link {
    min-height: 48px !important;
    min-width: 48px !important;
    padding: 12px 24px !important;
    font-size: 19px !important;
    font-weight: 600 !important;
    border-radius: 10px !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    cursor: pointer !important;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.08) !important;
}

.button:hover,
button:hover,
input[type="submit"]:hover {
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.12) !important;
    transform: translateY(-1px);
}

/* Large Accessible Form Controls */
input[type="text"],
input[type="email"],
input[type="password"],
input[type="search"],
input[type="tel"],
input[type="number"],
textarea,
select {
    min-height: 48px !important;
    font-size: 19px !important;
    line-height: 1.5 !important;
    padding: 10px 16px !important;
    border: 2px solid #CBD5E0 !important;
    border-radius: 8px !important;
    color: #1A202C !important;
    background-color: #FFFFFF !important;
    box-sizing: border-box !important;
}

input:focus,
textarea:focus,
select:focus,
button:focus,
.button:focus {
    outline: 3px solid #3182CE !important;
    outline-offset: 2px !important;
    border-color: #3182CE !important;
}

/* ==========================================================================
   3. Safe-Area Insets & Tablet / Smart TV Layout (Subtask 4.1.3)
   ========================================================================== */
body {
    padding-top: env(safe-area-inset-top, 0px);
    padding-bottom: env(safe-area-inset-bottom, 0px);
    padding-left: env(safe-area-inset-left, 0px);
    padding-right: env(safe-area-inset-right, 0px);
}

/* Smooth touch scrolling */
.bb-mobile-panel,
.bb-mobile-nav,
.activity-list,
.course-list {
    -webkit-overflow-scrolling: touch;
}

/* Responsive Card Layouts for Mobile & Tablet */
@media screen and (max-width: 767px) {
    .site-content {
        padding-left: 16px !important;
        padding-right: 16px !important;
    }

    .bb-block-grid,
    .wp-block-columns {
        display: flex !important;
        flex-direction: column !important;
        gap: 18px !important;
    }

    .activity-item {
        border-radius: 12px !important;
        margin-bottom: 16px !important;
        box-shadow: 0 2px 6px rgba(0, 0, 0, 0.06) !important;
        padding: 16px !important;
    }
}

/* Tablet & Smart TV Viewing Optimization (min-width: 992px) */
@media screen and (min-width: 992px) {
    .site-header {
        position: sticky;
        top: 0;
        z-index: 999;
    }

    .site-content {
        max-width: 1280px;
        margin-left: auto;
        margin-right: auto;
        padding-left: 32px;
        padding-right: 32px;
    }
}

/* Large Television / 4K Monitor Scaling (min-width: 1600px) */
@media screen and (min-width: 1600px) {
    html {
        font-size: 21px !important;
    }
}

/* ==========================================================================
   4. Multi-Language UI Switcher Widget (Subtask 4.1.4)
   ========================================================================== */
.senior-lang-switcher-container {
    display: inline-flex;
    align-items: center;
    background: #EDF2F7;
    border: 2px solid #CBD5E0;
    border-radius: 30px;
    padding: 3px;
    margin-left: 12px;
    user-select: none;
}

.senior-lang-btn {
    min-height: 42px !important;
    min-width: 48px !important;
    padding: 6px 14px !important;
    font-size: 16px !important;
    font-weight: 700 !important;
    color: #4A5568 !important;
    background: transparent !important;
    border: none !important;
    border-radius: 24px !important;
    box-shadow: none !important;
    cursor: pointer !important;
    transition: all 0.2s ease !important;
}

.senior-lang-btn.active {
    background: #1A365D !important;
    color: #FFFFFF !important;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.15) !important;
}

.senior-lang-btn:hover:not(.active) {
    background: #E2E8F0 !important;
    color: #1A202C !important;
}

/* Floating Language Switcher for Mobile / Quick Access */
.senior-floating-lang-toggle {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 9999;
    background: #FFFFFF;
    border: 2px solid #1A365D;
    border-radius: 32px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.18);
    display: flex;
    align-items: center;
    padding: 4px;
}

/* ==========================================================================
   5. Active Aging Celebration Modal (GamiPress Task 3.2 Integration)
   ========================================================================== */
.senior-celebration-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(26, 32, 44, 0.75);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 99999;
}

.senior-celebration-card {
    background: #FFFFFF;
    border: 4px solid #D69E2E;
    border-radius: 20px;
    padding: 32px 24px;
    max-width: 480px;
    width: 90%;
    text-align: center;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.25);
    animation: seniorPopIn 0.3s ease-out;
}

@keyframes seniorPopIn {
    from { transform: scale(0.85); opacity: 0; }
    to   { transform: scale(1); opacity: 1; }
}

.senior-celebration-title {
    font-size: 26px !important;
    font-weight: 700 !important;
    color: #1A365D !important;
    margin-bottom: 12px !important;
}

.senior-celebration-body {
    font-size: 19px !important;
    color: #2D3748 !important;
    line-height: 1.6 !important;
    margin-bottom: 24px !important;
}

.senior-celebration-close-btn {
    min-height: 52px !important;
    min-width: 140px !important;
    background-color: #D69E2E !important;
    color: #FFFFFF !important;
    font-size: 20px !important;
    font-weight: 700 !important;
    border-radius: 12px !important;
    border: none !important;
}

.senior-celebration-close-btn:hover {
    background-color: #B7791F !important;
}

/* ==========================================================================
   6. Anti-PII Sensitive Alert Banner (Task 3.3 Integration RSK-05)
   ========================================================================== */
.senior-pii-alert {
    color: #C53030 !important;
    font-size: 20px !important;
    font-weight: 700 !important;
    background: #FFF5F5 !important;
    padding: 16px 20px !important;
    border-radius: 10px !important;
    border: 2px solid #E53E3E !important;
    margin: 16px 0 !important;
}

/* ==========================================================================
   7. UAT Polish: Mobile Floating Switcher Safety Offset (ISS-007)
   ========================================================================== */
@media screen and (max-width: 767px) {\n    .senior-floating-lang-toggle {
        bottom: 84px !important;
        right: 16px !important;
    }
}

/* ==========================================================================
   8. UAT Polish: Prominent Medical Disclaimer Box (ISS-008 & RSK-01)
   ========================================================================== */
.senior-medical-disclaimer {
    background: #FFFDF5 !important;
    border: 3px solid #D69E2E !important;
    border-radius: 12px !important;
    padding: 20px 24px !important;
    margin: 24px 0 !important;
    font-size: 20px !important;
    line-height: 1.7 !important;
    color: #744210 !important;
    box-shadow: 0 4px 10px rgba(214, 158, 46, 0.15) !important;
}

/* ==========================================================================
   9. Senior AI Hub Portal Dedicated Styles (ISS-009 Resolution)
   ========================================================================== */
.senior-hub-portal-wrap {
    max-width: 1240px;
    margin: 0 auto;
    padding: 20px 16px 60px;
}

.senior-container {
    width: 100%;
    margin: 0 auto;
}

/* 1. Hero Section */
.senior-hero-section {
    margin-bottom: 48px;
}

.senior-hero-card {
    background: linear-gradient(135deg, #F0F7FF 0%, #FFFFFF 100%);
    border: 3px solid #BFDBFE;
    border-radius: 24px;
    padding: 44px 32px;
    text-align: center;
    box-shadow: 0 10px 25px rgba(30, 64, 175, 0.08);
}

.senior-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #DBEAFE;
    color: #1E40AF;
    padding: 8px 20px;
    border-radius: 30px;
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 20px;
}

.senior-hero-title {
    font-size: 40px !important;
    color: #1E3A8A !important;
    line-height: 1.3 !important;
    font-weight: 800 !important;
    margin-bottom: 16px !important;
}

.senior-hero-subtitle {
    font-size: 22px;
    color: #475569;
    max-width: 820px;
    margin: 0 auto 36px;
    line-height: 1.6;
}

/* Voice Action Prompt Box */
.senior-voice-action-box {
    background: #FFFFFF;
    border: 3px solid #D97706;
    border-radius: 20px;
    padding: 32px 28px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    max-width: 780px;
    margin: 0 auto;
    box-shadow: 0 8px 20px rgba(217, 119, 6, 0.12);
}

.voice-icon-circle {
    font-size: 44px;
    background: #FEF3C7;
    border: 2px solid #F59E0B;
    border-radius: 50%;
    width: 84px;
    height: 84px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.voice-action-heading {
    font-size: 28px !important;
    color: #92400E !important;
    font-weight: 800 !important;
    margin: 0 !important;
}

.voice-action-desc {
    font-size: 20px;
    color: #78350F;
    margin: 0;
    max-width: 640px;
    line-height: 1.6;
}

.senior-btn-primary {
    min-height: 56px !important;
    min-width: 260px !important;
    background: #D97706 !important;
    color: #FFFFFF !important;
    font-size: 22px !important;
    font-weight: 800 !important;
    border-radius: 16px !important;
    padding: 14px 32px !important;
    text-decoration: none !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    box-shadow: 0 4px 12px rgba(217, 119, 6, 0.3) !important;
    transition: all 0.2s ease;
    border: none !important;
}

.senior-btn-primary:hover {
    background: #B45309 !important;
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(217, 119, 6, 0.45) !important;
}

/* 2. Quick Entry Gateway Grid */
.senior-gateway-section {
    margin-bottom: 56px;
}

.senior-section-header {
    margin-bottom: 28px;
}

.senior-section-header.text-center {
    text-align: center;
}

.senior-section-title {
    font-size: 32px !important;
    color: #1A365D !important;
    font-weight: 800 !important;
    margin-bottom: 10px !important;
}

.senior-section-desc {
    font-size: 20px;
    color: #64748B;
    line-height: 1.6;
    margin: 0;
}

.senior-gateway-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.senior-gateway-card {
    background: #FFFFFF;
    border: 2px solid #E2E8F0;
    border-radius: 18px;
    padding: 28px 22px;
    display: flex;
    flex-direction: column;
    text-decoration: none !important;
    transition: all 0.2s ease;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.04);
}

.senior-gateway-card:hover {
    border-color: #2563EB;
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.12);
    transform: translateY(-3px);
}

.gateway-icon {
    font-size: 44px;
    margin-bottom: 14px;
}

.gateway-title {
    font-size: 24px !important;
    color: #1E3A8A !important;
    font-weight: 700 !important;
    margin-bottom: 8px !important;
}

.gateway-desc {
    font-size: 18px;
    color: #475569;
    line-height: 1.6;
    flex-grow: 1;
    margin-bottom: 16px;
}

.gateway-link-label {
    font-size: 19px;
    font-weight: 700;
    color: #2563EB;
}

/* 3. Core Curriculum Grid */
.senior-curriculum-section {
    margin-bottom: 56px;
}

.senior-modules-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
    gap: 24px;
}

.senior-module-card {
    background: #FFFFFF;
    border: 2px solid #CBD5E1;
    border-radius: 18px;
    padding: 28px 22px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
}

.module-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 14px;
}

.module-number-badge {
    background: #EFF6FF;
    color: #1D4ED8;
    padding: 4px 14px;
    border-radius: 20px;
    font-weight: 700;
    font-size: 16px;
}

.module-lesson-count {
    font-size: 16px;
    color: #64748B;
    font-weight: 600;
}

.module-title {
    font-size: 22px !important;
    color: #0F172A !important;
    font-weight: 700 !important;
    margin-bottom: 10px !important;
    line-height: 1.4 !important;
}

.module-summary {
    font-size: 18px;
    color: #475569;
    line-height: 1.6;
    margin-bottom: 22px;
    flex-grow: 1;
}

.senior-btn-outline {
    min-height: 48px;
    border: 2px solid #1D4ED8;
    color: #1D4ED8 !important;
    border-radius: 12px;
    font-weight: 700;
    font-size: 18px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none !important;
    transition: all 0.2s ease;
    background: #FFFFFF;
}

.senior-btn-outline:hover {
    background: #1D4ED8;
    color: #FFFFFF !important;
}

/* 4. Active Aging Motivation */
.senior-badges-section {
    margin-bottom: 56px;
}

.senior-badges-card {
    background: linear-gradient(135deg, #FFFBEB 0%, #FEF3C7 100%);
    border: 3px solid #F59E0B;
    border-radius: 24px;
    padding: 36px 32px;
    box-shadow: 0 6px 18px rgba(245, 158, 11, 0.15);
}

.badges-sub-tag {
    display: inline-block;
    font-size: 18px;
    font-weight: 700;
    color: #B45309;
    margin-bottom: 8px;
}

.badges-heading {
    font-size: 30px !important;
    color: #78350F !important;
    font-weight: 800 !important;
    margin-bottom: 12px !important;
}

.badges-desc {
    font-size: 20px;
    color: #92400E;
    line-height: 1.7;
    margin-bottom: 24px;
}

.badges-icon-row {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.badge-item-pill {
    background: #FFFFFF;
    border: 2px solid #FCD34D;
    padding: 10px 18px;
    border-radius: 30px;
    font-size: 18px;
    font-weight: 700;
    color: #78350F;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

/* 5. Senior Safety Card */
.senior-safety-section {
    margin-bottom: 40px;
}

.senior-safety-card {
    background: #F8FAFC;
    border: 2px solid #E2E8F0;
    border-radius: 22px;
    padding: 36px 32px;
}

.safety-heading {
    font-size: 28px !important;
    color: #1E293B !important;
    font-weight: 800 !important;
    margin-bottom: 18px !important;
}

.safety-rule-box {
    background: #FFFFFF;
    border-left: 6px solid #10B981;
    padding: 18px 22px;
    border-radius: 10px;
    margin-bottom: 20px;
    font-size: 19px;
    line-height: 1.7;
    box-shadow: 0 2px 6px rgba(0,0,0,0.04);
}

/* Mobile Responsive Optimizations */
@media screen and (max-width: 767px) {
    .senior-hero-card {
        padding: 28px 18px;
    }

    .senior-hero-title {
        font-size: 28px !important;
    }

    .senior-hero-subtitle {
        font-size: 19px;
        margin-bottom: 24px;
    }

    .voice-action-heading {
        font-size: 22px !important;
    }

    .voice-action-desc {
        font-size: 18px;
    }

    .senior-btn-primary {
        width: 100% !important;
        min-height: 54px !important;
        font-size: 20px !important;
    }

    .senior-gateway-grid,
    .senior-modules-grid {
        grid-template-columns: 1fr !important;
    }

    .senior-section-title {
        font-size: 26px !important;
    }

    .badges-heading {
        font-size: 24px !important;
    }
}