/**
 * Quick Access Section Styling System
 * Interactive quick access cards with animations
 * Version: 1.1.0 - Optimized & Secured
 * CSP-Safe: No inline styles, external resources validated
 */

/* ============================================
   CSS CUSTOM PROPERTIES
   ============================================ */

:root {
    --qa-bg: linear-gradient(135deg, rgba(15, 15, 35, 0.95) 0%, rgba(26, 26, 53, 0.9) 50%, rgba(15, 15, 35, 0.95) 100%);
    --qa-card-bg: rgba(30, 41, 59, 0.9);
    --qa-card-border: rgba(71, 85, 105, 0.4);
    --qa-card-border-hover: rgba(255, 107, 107, 0.6);
    --qa-title-gradient: linear-gradient(135deg, #ff6b6b, #feca57, #48dbfb, #ff9ff3);
    --qa-btn-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --qa-btn-gradient-hover: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
    --qa-accent-line: linear-gradient(90deg, #ff6b6b, #feca57, #48dbfb);
    --qa-text-primary: #f1f5f9;
    --qa-text-secondary: #cbd5e0;
    --qa-text-muted: #94a3b8;
    --qa-feature-tag-bg: rgba(72, 219, 251, 0.15);
    --qa-feature-tag-color: #48dbfb;
    --qa-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    --qa-shadow-hover: 0 20px 60px rgba(0, 0, 0, 0.3);
    --qa-transition: 0.4s cubic-bezier(0.23, 1, 0.32, 1);
    --qa-border-radius: 20px;
    --qa-card-min-height: 380px;
    --qa-focus-outline: 2px solid #667eea;
    --qa-focus-offset: 2px;
}

/* ============================================
   QUICK ACCESS SECTION
   ============================================ */

.quick-access-section {
    position: relative !important;
    padding: 80px 0 !important;
    background: linear-gradient(135deg, rgba(15, 15, 35, 0.95) 0%, rgba(26, 26, 53, 0.9) 50%, rgba(15, 15, 35, 0.95) 100%) !important; /* fallback */
    background: var(--qa-bg) !important;
    overflow: hidden !important;
    width: 100% !important;
    display: block !important;
    box-sizing: border-box !important;
    clear: both !important;
}

/* SECURITY: Block injected inline styles */
.quick-access-section[style*="background"],
.quick-access-section[style*="padding"],
.quick-access-section[style*="animation"] {
    animation: none !important;
}

.categories-background {
    position: absolute;
    inset: 0;
    z-index: 0;
    pointer-events: none;
}

.categories-particles {
    position: absolute;
    inset: 0;
    background-image: 
        radial-gradient(circle at 40% 40%, rgba(72, 219, 251, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 107, 107, 0.03) 0%, transparent 50%);
    pointer-events: none;
}

.categories-gradient-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        45deg,
        rgba(255, 107, 107, 0.02) 0%,
        rgba(254, 202, 87, 0.03) 25%,
        rgba(72, 219, 251, 0.02) 50%,
        rgba(255, 159, 243, 0.03) 75%,
        rgba(255, 107, 107, 0.02) 100%
    );
    pointer-events: none;
}

.quick-access-header {
    text-align: center;
    margin-bottom: 60px;
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    padding: 0 20px;
}

.quick-access-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    background: linear-gradient(135deg, #ff6b6b, #feca57, #48dbfb, #ff9ff3); /* fallback */
    background: var(--qa-title-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 20px;
}

.quick-access-subtitle {
    font-size: clamp(1rem, 2vw, 1.3rem);
    color: #cbd5e0; /* fallback */
    color: var(--qa-text-secondary);
    margin-bottom: 30px;
    font-weight: 400;
    line-height: 1.6;
}

.header-accent-line {
    width: 120px;
    height: 4px;
    background: linear-gradient(90deg, #ff6b6b, #feca57, #48dbfb); /* fallback */
    background: var(--qa-accent-line);
    margin: 0 auto;
    border-radius: 2px;
}

/* ============================================
   QUICK ACCESS GRID
   ============================================ */

.quick-access-grid {
    display: grid !important;
    grid-template-columns: repeat(3, 1fr) !important;
    gap: 30px !important;
    max-width: 1400px !important;
    margin: 0 auto !important;
    padding: 0 40px !important;
    position: relative !important;
    z-index: 2 !important;
    width: 100% !important;
    box-sizing: border-box !important;
}

.quick-access-card-link {
    text-decoration: none !important;
    display: block !important;
    transform-style: preserve-3d !important;
    perspective: 1000px !important;
    width: 100% !important;
    height: auto !important;
}

/* ============================================
   QUICK ACCESS CARDS
   ============================================ */

.quick-access-card,
.quick-card {
    position: relative !important;
    background: rgba(30, 41, 59, 0.9) !important; /* fallback */
    background: var(--qa-card-bg) !important;
    border-radius: 20px !important; /* fallback */
    border-radius: var(--qa-border-radius) !important;
    border: 1px solid rgba(71, 85, 105, 0.4) !important; /* fallback */
    border: 1px solid var(--qa-card-border) !important;
    padding: 30px !important;
    transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease !important;
    overflow: visible !important;
    backdrop-filter: blur(20px) !important;
    -webkit-backdrop-filter: blur(20px) !important;
    min-height: 380px !important; /* fallback */
    min-height: var(--qa-card-min-height) !important;
    display: flex !important;
    flex-direction: column !important;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2) !important; /* fallback */
    box-shadow: var(--qa-shadow) !important;
    z-index: 1 !important;
    cursor: pointer !important;
    width: 100% !important;
    box-sizing: border-box !important;
    backface-visibility: hidden;
}

.quick-access-card:hover,
.quick-card:hover {
    transform: translateY(-8px);
    border-color: rgba(255, 107, 107, 0.6); /* fallback */
    border-color: var(--qa-card-border-hover);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3); /* fallback */
    box-shadow: var(--qa-shadow-hover);
    z-index: 10;
}

.quick-access-card:focus-visible,
.quick-card:focus-visible {
    outline: 2px solid #667eea; /* fallback */
    outline: var(--qa-focus-outline);
    outline-offset: 2px; /* fallback */
    outline-offset: var(--qa-focus-offset);
}

/* ============================================
   CARD CONTENT
   ============================================ */

.card-icon {
    font-size: 3.5rem;
    margin-bottom: 20px;
    display: inline-block;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
    padding: 20px;
    border-radius: 20px; /* fallback */
    border-radius: var(--qa-border-radius);
    border: 1px solid rgba(255, 255, 255, 0.1);
    pointer-events: none;
}

.card-title {
    font-size: clamp(1.3rem, 2vw, 1.6rem);
    font-weight: 700;
    margin-bottom: 15px;
    color: #f1f5f9; /* fallback */
    color: var(--qa-text-primary);
    line-height: 1.3;
}

.card-description {
    font-size: 1rem;
    color: #94a3b8; /* fallback */
    color: var(--qa-text-muted);
    margin-bottom: 25px;
    line-height: 1.6;
    flex-grow: 1;
}

.card-features {
    display: flex !important;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: center;
    margin-bottom: 25px;
    visibility: visible !important;
    opacity: 1 !important;
}

.feature-tag {
    background: rgba(72, 219, 251, 0.15); /* fallback */
    background: var(--qa-feature-tag-bg);
    color: #48dbfb; /* fallback */
    color: var(--qa-feature-tag-color);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    border: 1px solid rgba(72, 219, 251, 0.3);
    white-space: nowrap;
    display: inline-flex !important;
    align-items: center;
    gap: 8px;
    visibility: visible !important;
    opacity: 1 !important;
    pointer-events: auto !important;
}

/* ============================================
   CARD CTA BUTTON
   ============================================ */

.card-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 24px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    background: var(--qa-btn-gradient);
    color: #ffffff;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.875rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    width: auto;
    min-width: fit-content;
    max-width: fit-content;
    margin: 0 auto;
    margin-top: auto;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
    z-index: 10;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
    white-space: nowrap;
}

.card-cta::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, #764ba2 0%, #667eea 100%); /* fallback */
    background: var(--qa-btn-gradient-hover);
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.card-cta:hover::before {
    opacity: 1;
}

.card-cta:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.5);
}

.card-cta:active {
    transform: translateY(0) scale(0.98);
}

.card-cta:focus-visible {
    outline: 2px solid #667eea; /* fallback */
    outline: var(--qa-focus-outline);
    outline-offset: 2px; /* fallback */
    outline-offset: var(--qa-focus-offset);
}

.card-cta span,
.card-cta .cta-text {
    position: relative;
    z-index: 1;
    font-size: 0.875rem;
    font-weight: 600;
}

.card-cta-arrow,
.card-cta .cta-arrow {
    position: relative;
    z-index: 1;
    transition: transform 0.3s ease;
    pointer-events: none;
    font-size: 0.875rem;
}

.card-cta:hover .card-cta-arrow,
.card-cta:hover .cta-arrow {
    transform: translateX(4px);
}

/* Card-specific button colors */
.home-card .card-cta {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.reviews-card .card-cta {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.buying-card .card-cta {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.comparison-card .card-cta {
    background: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
}

.tips-card .card-cta {
    background: linear-gradient(135deg, #30cfd0 0%, #330867 100%);
}

.blog-card .card-cta {
    background: linear-gradient(135deg, #5f72bd 0%, #9b23ea 100%);
    color: #fff;
    text-shadow: 0 1px 8px rgba(0,0,0,0.18), 0 1px 0 rgba(0,0,0,0.12);
}

/* ============================================
   REDUCED MOTION SUPPORT
   ============================================ */

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .quick-access-card:hover,
    .quick-card:hover,
    .card-cta:hover {
        transform: none !important;
    }
}

/* ============================================
   HIGH CONTRAST MODE
   ============================================ */

@media (prefers-contrast: high) {
    .quick-access-card,
    .quick-card {
        border: 2px solid currentColor;
    }
    
    .card-cta:focus-visible,
    .quick-access-card:focus-visible,
    .quick-card:focus-visible {
        outline-width: 3px;
    }
}

/* ============================================
   DARK MODE SUPPORT
   ============================================ */

@media (prefers-color-scheme: dark) {
    :root {
        --qa-card-bg: rgba(20, 31, 49, 0.95);
        --qa-card-border: rgba(71, 85, 105, 0.5);
    }
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 1200px) {
    .quick-access-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 25px !important;
        padding: 0 30px !important;
    }
}

@media (max-width: 768px) {
    .quick-access-section {
        padding: 60px 15px !important;
    }

    .quick-access-grid {
        grid-template-columns: 1fr !important;
        gap: 20px !important;
        padding: 0 !important;
    }
    
    .quick-access-card,
    .quick-card {
        min-height: auto !important;
        height: auto !important;
        padding: 28px 22px !important;
    }

    .categories-floating-elements {
        display: none !important;
    }
}

@media (max-width: 480px) {
    .quick-access-section {
        padding: 50px 10px !important;
    }

    .quick-access-card,
    .quick-card {
        padding: 25px 20px !important;
    }
    
    .card-cta {
        padding: 8px 20px;
        font-size: 0.8rem;
        min-width: auto;
    }
    
    .card-cta span,
    .card-cta .cta-text {
        font-size: 0.8rem;
    }
}

/* ============================================
   PRINT STYLES
   ============================================ */

@media print {
    .quick-access-section,
    .categories-floating-elements {
        display: none !important;
    }
}