/**
 * ZonaTech NG - Glassmorphism Effects
 * OPTIMIZED for blazing fast performance
 */

/* Glass Effect Base - OPTIMIZED: reduced blur for performance */
.glass-effect {
    background: rgba(26, 26, 46, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    /* GPU acceleration */
    transform: translateZ(0);
    will-change: transform;
}

.glass-effect-light {
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transform: translateZ(0);
}

.glass-effect-purple {
    background: rgba(139, 92, 246, 0.12);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(139, 92, 246, 0.2);
    box-shadow: 0 0 20px rgba(139, 92, 246, 0.1);
    transform: translateZ(0);
}

/* Glass Cards - OPTIMIZED */
.glass-card {
    background: rgba(26, 26, 46, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    padding: var(--space-lg);
    transition: transform 0.15s ease-out, box-shadow 0.15s ease-out;
    position: relative;
    overflow: hidden;
    /* GPU acceleration */
    transform: translateZ(0);
    will-change: transform;
}

.glass-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(255, 255, 255, 0.2), 
        transparent
    );
}

.glass-card:hover {
    transform: translateY(-3px) translateZ(0);
    border-color: rgba(139, 92, 246, 0.3);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.4);
}

/* Service Card - OPTIMIZED */
.service-card {
    background: rgba(26, 26, 46, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    text-align: center;
    transition: transform 0.15s ease-out, box-shadow 0.15s ease-out;
    position: relative;
    overflow: hidden;
    /* GPU acceleration */
    transform: translateZ(0);
    will-change: transform;
}

.service-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.08) 0%, transparent 50%);
    opacity: 0;
    transition: opacity 0.15s ease-out;
}

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

.service-card:hover {
    transform: translateY(-5px) scale(1.01) translateZ(0);
    border-color: rgba(139, 92, 246, 0.4);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.service-card-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto var(--space-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    border-radius: var(--radius-lg);
    position: relative;
    z-index: 1;
}

.service-card-icon.purple {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.2) 0%, rgba(124, 58, 237, 0.1) 100%);
    color: var(--zona-purple-light);
    box-shadow: 0 0 30px rgba(139, 92, 246, 0.2);
}

.service-card-icon.green {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.2) 0%, rgba(22, 163, 74, 0.1) 100%);
    color: var(--zona-success);
    box-shadow: 0 0 30px rgba(34, 197, 94, 0.2);
}

.service-card-icon.orange {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.2) 0%, rgba(217, 119, 6, 0.1) 100%);
    color: var(--zona-warning);
    box-shadow: 0 0 30px rgba(245, 158, 11, 0.2);
}

.service-card-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
    position: relative;
    z-index: 1;
    color: var(--zona-white);
}

.service-card-desc {
    font-size: 0.8rem;
    color: var(--zona-white-muted);
    margin-bottom: var(--space-md);
    position: relative;
    z-index: 1;
}

.service-card-price {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--zona-purple-light);
    margin-bottom: var(--space-md);
    position: relative;
    z-index: 1;
}

/* Feature Card */
.feature-card {
    background: rgba(26, 26, 46, 0.4);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    transition: all var(--transition-normal);
}

.feature-card:hover {
    background: rgba(26, 26, 46, 0.6);
    border-color: rgba(139, 92, 246, 0.2);
    transform: translateX(5px);
}

.feature-icon {
    width: 45px;
    height: 45px;
    min-width: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--zona-gradient-purple);
    border-radius: var(--radius-md);
    font-size: 1rem;
}

.feature-content h4 {
    font-size: 0.9rem;
    margin-bottom: var(--space-xs);
    color: var(--zona-white);
}

.feature-content p {
    font-size: 0.8rem;
    margin: 0;
    color: var(--zona-white-muted);
}

/* Stats Card */
.stats-card {
    background: rgba(26, 26, 46, 0.6);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.stats-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--zona-gradient-purple);
}

.stats-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--zona-white);
    margin-bottom: var(--space-xs);
}

.stats-label {
    font-size: 0.75rem;
    color: var(--zona-white-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Question Card */
.question-card {
    background: rgba(26, 26, 46, 0.6);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    margin-bottom: var(--space-md);
}

.question-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    background: var(--zona-gradient-purple);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: var(--space-md);
}

.question-text {
    font-size: 0.9rem;
    line-height: 1.7;
    margin-bottom: var(--space-md);
    color: var(--zona-white);
}

.question-options {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.option-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.option-item:hover {
    background: rgba(139, 92, 246, 0.1);
    border-color: rgba(139, 92, 246, 0.3);
}

.option-item.selected {
    background: rgba(139, 92, 246, 0.15);
    border-color: var(--zona-purple);
}

.option-item.correct {
    background: rgba(34, 197, 94, 0.15);
    border-color: var(--zona-success);
}

.option-item.wrong {
    background: rgba(239, 68, 68, 0.15);
    border-color: var(--zona-error);
}

.option-letter {
    width: 28px;
    height: 28px;
    min-width: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
}

.option-item.selected .option-letter {
    background: var(--zona-purple);
}

.option-item.correct .option-letter {
    background: var(--zona-success);
}

.option-item.wrong .option-letter {
    background: var(--zona-error);
}

/* Past Questions Option (Interactive) */
.pq-option {
    display: flex;
    align-items: center;
    padding: 0.75rem 1rem;
    margin-bottom: 0.5rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.pq-option:hover {
    background: rgba(139, 92, 246, 0.1);
    border-color: rgba(139, 92, 246, 0.3);
    transform: translateY(-1px);
}

.pq-option:active {
    transform: translateY(0);
}

.pq-option .option-letter {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    min-width: 28px;
    border-radius: 6px;
    font-weight: 600;
    font-size: 0.85rem;
    margin-right: 12px;
    background: rgba(139, 92, 246, 0.2);
    color: #8b5cf6;
}

.pq-option .option-text {
    flex: 1;
    color: #a1a1aa;
}

.pq-option .option-icon {
    margin-left: auto;
}

/* Past Questions Explanation Box */
.pq-explanation-box {
    display: none;
    margin-top: 1rem;
    padding: 1rem 1.25rem;
    background: rgba(139, 92, 246, 0.1);
    border-left: 4px solid #8b5cf6;
    border-radius: 0 10px 10px 0;
}

.pq-explanation-box .explanation-title {
    color: #8b5cf6;
    font-weight: 600;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.pq-explanation-box .explanation-content {
    margin: 0;
    line-height: 1.6;
    color: #a1a1aa;
}

.option-text {
    font-size: 0.85rem;
    flex: 1;
    color: var(--zona-white);
}

/* Auth Card */
.auth-card {
    max-width: 420px;
    margin: var(--space-2xl) auto;
    background: rgba(26, 26, 46, 0.7);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    position: relative;
    overflow: hidden;
}

.auth-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--zona-gradient-purple);
}

.auth-header {
    text-align: center;
    margin-bottom: var(--space-xl);
}

.auth-header h2 {
    margin-bottom: var(--space-xs);
}

.auth-header p {
    margin: 0;
}

.auth-divider {
    display: flex;
    align-items: center;
    margin: var(--space-lg) 0;
    color: var(--zona-white-muted);
    font-size: 0.8rem;
}

.auth-divider::before,
.auth-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: rgba(255, 255, 255, 0.1);
}

.auth-divider span {
    padding: 0 var(--space-md);
}

/* Payment Card */
.payment-card {
    background: rgba(26, 26, 46, 0.6);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-md);
}

.payment-info {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.payment-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--zona-gradient-purple);
    border-radius: var(--radius-md);
    font-size: 1.25rem;
}

.payment-details h4 {
    font-size: 0.9rem;
    margin-bottom: 0.2rem;
    color: var(--zona-white);
}

.payment-details p {
    font-size: 0.75rem;
    margin: 0;
    color: var(--zona-white-muted);
}

.payment-amount {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--zona-purple-light);
}

/* Result Card */
.result-card {
    background: rgba(26, 26, 46, 0.7);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    text-align: center;
    max-width: 500px;
    margin: 0 auto;
}

.result-score {
    width: 150px;
    height: 150px;
    margin: 0 auto var(--space-xl);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: var(--zona-gradient-purple);
    border-radius: 50%;
    box-shadow: 0 0 50px rgba(139, 92, 246, 0.3);
}

.result-score .score-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--zona-white);
}

.result-score .score-label {
    font-size: 0.8rem;
    opacity: 0.8;
    color: var(--zona-white);
}

.result-grade {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--space-md);
    color: var(--zona-white);
}

.result-stats {
    display: flex;
    justify-content: center;
    gap: var(--space-xl);
    margin: var(--space-xl) 0;
}

.result-stat {
    text-align: center;
}

.result-stat .stat-value {
    font-size: 1.5rem;
    font-weight: 600;
}

.result-stat.correct .stat-value { color: var(--zona-success); }
.result-stat.wrong .stat-value { color: var(--zona-error); }

.result-stat .stat-label {
    font-size: 0.75rem;
    color: var(--zona-white-muted);
}

/* Reflective/Mirror Effect */
.glass-reflection {
    position: relative;
}

.glass-reflection::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 50%;
    background: linear-gradient(
        180deg,
        rgba(255, 255, 255, 0.08) 0%,
        transparent 100%
    );
    pointer-events: none;
    border-radius: inherit;
}