/**
 * Enhanced Frontend Styles - استایل‌های بازنویسی شده
 * 
 * @package ParfiumoFragranceTest
 * @version 2.0
 */

/* 🎨 Base Styles */

:root {
    --pft-primary: #667eea;
    --pft-secondary: #764ba2;
    --pft-success: #4CAF50;
    --pft-warning: #FF9800;
    --pft-error: #f44336;
    --pft-text: #333333;
    --pft-text-light: #666666;
    --pft-border: #e0e0e0;
    --pft-background: #fafafa;
    --pft-white: #ffffff;
    --pft-shadow: 0 5px 20px rgba(0,0,0,0.1);
    --pft-radius: 15px;
    --pft-transition: all 0.3s ease;
}

/* 📱 RTL Support */
.pft-test-container {
    direction: rtl;
    text-align: right;
}

.pft-test-container * {
    box-sizing: border-box;
}

/* 🌟 Animation Keyframes */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    33% { transform: translateY(-10px) rotate(1deg); }
    66% { transform: translateY(5px) rotate(-1deg); }
}

@keyframes shimmer {
    0% { background-position: -200px 0; }
    100% { background-position: 200px 0; }
}

/* 🚀 Hero Section Enhanced */
.pft-hero-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    border-radius: 25px;
    padding: 60px 40px;
    text-align: center;
    color: white;
    margin-bottom: 40px;
    position: relative;
    overflow: hidden;
    animation: fadeInUp 0.8s ease;
}

.pft-hero-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    animation: float 8s ease-in-out infinite;
}

.hero-title {
    font-size: clamp(2em, 5vw, 3em);
    margin: 0 0 20px;
    font-weight: 700;
    text-shadow: 0 2px 10px rgba(0,0,0,0.2);
    position: relative;
    z-index: 2;
}

.hero-emoji {
    display: inline-block;
    font-size: 1.2em;
    margin-left: 15px;
    animation: pulse 2s ease-in-out infinite;
}

.hero-subtitle {
    font-size: clamp(1em, 3vw, 1.3em);
    margin: 0 0 40px;
    opacity: 0.95;
    line-height: 1.7;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    position: relative;
    z-index: 2;
}

.hero-features {
    display: flex;
    justify-content: center;
    gap: 25px;
    flex-wrap: wrap;
    position: relative;
    z-index: 2;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(255,255,255,0.15);
    padding: 12px 24px;
    border-radius: 30px;
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255,255,255,0.2);
    transition: var(--pft-transition);
    font-weight: 500;
}

.feature-item:hover {
    background: rgba(255,255,255,0.25);
    transform: translateY(-2px);
}

.feature-icon {
    font-size: 1.3em;
}

/* 📊 Enhanced Progress Bar */
.pft-progress-container {
    background: var(--pft-white);
    border-radius: 20px;
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: var(--pft-shadow);
    animation: fadeInUp 0.8s ease 0.2s both;
}

.progress-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.progress-text {
    font-weight: 600;
    color: var(--pft-text);
    font-size: 1.1em;
}

.progress-fraction {
    color: var(--pft-primary);
    font-weight: 700;
    font-size: 1.1em;
}

.progress-bar {
    height: 12px;
    background: var(--pft-background);
    border-radius: 6px;
    overflow: hidden;
    margin-bottom: 25px;
    position: relative;
}

.progress-bar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    transform: translateX(-100%);
    animation: shimmer 2s infinite;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--pft-primary), var(--pft-secondary));
    border-radius: 6px;
    transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.progress-stages {
    display: flex;
    justify-content: space-between;
    position: relative;
}

.progress-stages::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 16px;
    right: 16px;
    height: 2px;
    background: var(--pft-border);
    z-index: 1;
}

.stage-dot {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--pft-white);
    border: 3px solid var(--pft-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: 700;
    color: var(--pft-text-light);
    transition: var(--pft-transition);
    position: relative;
    z-index: 2;
}

.stage-dot.active {
    background: linear-gradient(135deg, var(--pft-primary), var(--pft-secondary));
    border-color: var(--pft-primary);
    color: white;
    transform: scale(1.15);
    box-shadow: 0 0 20px rgba(102, 126, 234, 0.4);
}

.stage-dot.completed {
    background: var(--pft-success);
    border-color: var(--pft-success);
    color: white;
}

.stage-dot.completed::before {
    content: '✓';
    font-size: 16px;
}

/* 📝 Enhanced Question Slides */
.question-slide {
    background: var(--pft-white);
    border-radius: 25px;
    padding: 50px;
    margin-bottom: 30px;
    box-shadow: var(--pft-shadow);
    transition: var(--pft-transition);
    animation: fadeInUp 0.8s ease;
    border: 1px solid var(--pft-border);
}

.question-slide:hover {
    box-shadow: 0 10px 40px rgba(0,0,0,0.15);
}

.question-header {
    margin-bottom: 50px;
    text-align: center;
}

.question-number {
    background: linear-gradient(135deg, var(--pft-primary), var(--pft-secondary));
    color: white;
    padding: 12px 25px;
    border-radius: 30px;
    display: inline-block;
    margin-bottom: 25px;
    font-weight: 700;
    font-size: 1.1em;
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.3);
}

.question-title {
    font-size: clamp(1.5em, 4vw, 2.2em);
    margin: 0 0 15px;
    color: var(--pft-text);
    line-height: 1.3;
    font-weight: 700;
}

.question-subtitle {
    color: var(--pft-primary);
    font-weight: 600;
    margin: 0 0 20px;
    font-size: 1.1em;
}

.question-description {
    color: var(--pft-text-light);
    line-height: 1.7;
    margin: 0 0 20px;
    font-size: 1.05em;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.visual-hint {
    background: linear-gradient(135deg, #f0f8ff, #e8f2ff);
    border: 2px solid var(--pft-primary);
    border-radius: 15px;
    padding: 16px 20px;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 0.95em;
    color: var(--pft-primary);
    font-weight: 500;
    box-shadow: 0 3px 10px rgba(102, 126, 234, 0.1);
}

.hint-icon {
    font-size: 1.2em;
    animation: pulse 2s infinite;
}

/* 🎯 Enhanced Options Grid */
.options-grid {
    display: grid;
    gap: 25px;
    margin-bottom: 50px;
}

.options-2 { grid-template-columns: repeat(2, 1fr); }
.options-3 { grid-template-columns: repeat(3, 1fr); }
.options-4 { grid-template-columns: repeat(2, 1fr); }

@media (max-width: 768px) {
    .options-grid {
        grid-template-columns: 1fr !important;
        gap: 20px;
    }
    
    .question-slide {
        padding: 30px 25px;
    }
    
    .hero-features {
        gap: 15px;
    }
    
    .feature-item {
        padding: 10px 16px;
        font-size: 0.9em;
    }
}

.option-card {
    position: relative;
    transition: var(--pft-transition);
}

.option-card:hover {
    transform: translateY(-8px);
}

.option-card input[type="radio"] {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.option-label {
    display: block;
    background: var(--pft-background);
    border: 3px solid var(--pft-border);
    border-radius: 20px;
    padding: 30px 25px;
    cursor: pointer;
    transition: var(--pft-transition);
    height: 100%;
    position: relative;
    overflow: hidden;
    text-align: center;
}

.option-label::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(102, 126, 234, 0.1), transparent);
    transition: left 0.5s ease;
}

.option-label:hover {
    border-color: var(--pft-primary);
    background: #f8f9ff;
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.15);
}

.option-label:hover::before {
    left: 100%;
}

.option-card input:checked + .option-label {
    border-color: var(--pft-primary);
    background: linear-gradient(135deg, #f8f9ff, #e8f2ff);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.25);
    transform: translateY(-5px);
}

.option-visual {
    margin-bottom: 20px;
}

.option-emoji {
    font-size: 4em;
    margin-bottom: 15px;
    display: block;
    animation: float 6s ease-in-out infinite;
}

.option-color {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    margin: 0 auto 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.2);
    border: 4px solid white;
}

.option-title {
    font-size: 1.2em;
    font-weight: 700;
    margin: 0 0 12px;
    color: var(--pft-text);
    line-height: 1.3;
}

.option-description {
    color: var(--pft-text-light);
    margin: 0 0 20px;
    line-height: 1.5;
    font-size: 0.95em;
}

.option-insight,
.scent-match {
    background: rgba(102, 126, 234, 0.1);
    border: 1px solid rgba(102, 126, 234, 0.2);
    border-radius: 12px;
    padding: 12px 16px;
    margin: 10px 0;
    font-size: 0.9em;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--pft-primary);
    font-weight: 500;
}

.insight-icon,
.match-icon {
    font-size: 1.1em;
}

.option-selected {
    position: absolute;
    top: 20px;
    left: 20px;
    width: 36px;
    height: 36px;
    background: var(--pft-success);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
    font-size: 18px;
    opacity: 0;
    transform: scale(0);
    transition: var(--pft-transition);
    box-shadow: 0 3px 10px rgba(76, 175, 80, 0.3);
}

.option-card input:checked + .option-label .option-selected {
    opacity: 1;
    transform: scale(1);
}

/* 🧭 Enhanced Navigation */
.question-navigation {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 25px;
    margin-top: 40px;
}

.nav-btn,
.submit-btn {
    padding: 18px 35px;
    border: none;
    border-radius: 50px;
    font-size: 1.1em;
    font-weight: 600;
    cursor: pointer;
    transition: var(--pft-transition);
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.nav-btn::before,
.submit-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s ease;
}

.nav-btn:hover::before,
.submit-btn:hover::before {
    left: 100%;
}

.prev-btn {
    background: var(--pft-background);
    color: var(--pft-text-light);
    border: 2px solid var(--pft-border);
}

.prev-btn:hover {
    background: #e8e8e8;
    border-color: #ccc;
    transform: translateY(-2px);
}

.next-btn,
.submit-btn {
    background: linear-gradient(135deg, var(--pft-primary), var(--pft-secondary));
    color: white;
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.3);
}

.next-btn:hover,
.submit-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
}

.next-btn:disabled,
.submit-btn:disabled {
    background: #ccc;
    color: #999;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.btn-icon {
    font-size: 1.2em;
}

/* 🔄 Enhanced Loading Animation */
.pft-loading {
    background: var(--pft-white);
    border-radius: 25px;
    padding: 80px 40px;
    text-align: center;
    box-shadow: var(--pft-shadow);
    animation: fadeIn 0.5s ease;
}

.loading-animation {
    max-width: 500px;
    margin: 0 auto;
}

.dna-helix {
    width: 120px;
    height: 120px;
    margin: 0 auto 40px;
    position: relative;
}

.helix-strand {
    position: absolute;
    width: 100%;
    height: 100%;
    border: 4px solid;
    border-radius: 50%;
    animation: rotate 2s linear infinite;
}

.helix-strand.strand-1 {
    border-color: var(--pft-primary) transparent var(--pft-primary) transparent;
}

.helix-strand.strand-2 {
    border-color: transparent var(--pft-secondary) transparent var(--pft-secondary);
    animation-delay: 1s;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.loading-title {
    color: var(--pft-text);
    margin: 0 0 20px;
    font-size: 1.8em;
    font-weight: 700;
}

.loading-description {
    color: var(--pft-text-light);
    margin: 0 0 40px;
    font-size: 1.1em;
    line-height: 1.6;
}

.loading-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 20px;
    justify-content: center;
}

.step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding: 20px;
    border-radius: 15px;
    opacity: 0.3;
    transition: var(--pft-transition);
    background: var(--pft-background);
}

.step.active {
    opacity: 1;
    background: linear-gradient(135deg, #f8f9ff, #e8f2ff);
    transform: scale(1.05);
}

.step-icon {
    font-size: 2em;
}

.step-text {
    font-size: 0.9em;
    text-align: center;
    font-weight: 500;
    color: var(--pft-text);
}

/* 📋 Results Section */
.pft-results {
    background: var(--pft-white);
    border-radius: 25px;
    padding: 50px;
    box-shadow: var(--pft-shadow);
    animation: fadeInUp 0.8s ease;
}

.results-header {
    text-align: center;
    margin-bottom: 50px;
}

.results-title {
    font-size: 2.5em;
    margin: 0 0 20px;
    color: var(--pft-text);
    font-weight: 700;
}

.dna-code-display {
    background: linear-gradient(135deg, var(--pft-primary), var(--pft-secondary));
    color: white;
    padding: 20px 30px;
    border-radius: 20px;
    font-size: 2em;
    font-weight: bold;
    letter-spacing: 5px;
    margin: 20px 0;
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.3);
}

/* 🎨 Dark Theme Support */
.pft-test-container.dark-theme {
    --pft-text: #ffffff;
    --pft-text-light: #cccccc;
    --pft-background: #2d3748;
    --pft-white: #1a202c;
    --pft-border: #4a5568;
    --pft-shadow: 0 5px 20px rgba(0,0,0,0.3);
}

.dark-theme .question-slide,
.dark-theme .pft-progress-container,
.dark-theme .pft-loading,
.dark-theme .pft-results {
    background: var(--pft-white);
    border: 1px solid var(--pft-border);
}

/* 🔧 Utility Classes */
.pft-fade-in {
    animation: fadeIn 0.5s ease;
}

.pft-slide-up {
    animation: fadeInUp 0.5s ease;
}

.pft-slide-right {
    animation: slideInRight 0.5s ease;
}

.pft-pulse {
    animation: pulse 2s infinite;
}

.pft-float {
    animation: float 6s ease-in-out infinite;
}

/* 📱 Responsive Design */
@media (max-width: 480px) {
    .pft-hero-section {
        padding: 40px 25px;
    }
    
    .hero-title {
        font-size: 1.8em;
    }
    
    .hero-subtitle {
        font-size: 1em;
    }
    
    .question-slide {
        padding: 25px 20px;
    }
    
    .question-title {
        font-size: 1.4em;
    }
    
    .option-label {
        padding: 20px 15px;
    }
    
    .option-emoji {
        font-size: 2.5em;
    }
    
    .nav-btn,
    .submit-btn {
        padding: 15px 25px;
        font-size: 1em;
    }
    
    .question-navigation {
        flex-direction: column;
        gap: 15px;
    }
    
    .question-navigation .nav-btn,
    .question-navigation .submit-btn {
        width: 100%;
        justify-content: center;
    }
}

/* 🖨️ Print Styles */
@media print {
    .pft-test-container {
        background: white !important;
        color: black !important;
    }
    
    .question-navigation,
    .pft-loading,
    .floating-elements {
        display: none !important;
    }
    
    .question-slide {
        break-inside: avoid;
        box-shadow: none !important;
        border: 1px solid #ccc !important;
    }
}

/* Enhanced CSS for no products found message */
.no-products-found {
    text-align: center;
    padding: 40px 20px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 15px;
    border: 2px solid #dee2e6;
    margin: 20px 0;
}

.no-products-icon {
    font-size: 4rem;
    margin-bottom: 20px;
    opacity: 0.6;
}

.no-products-found h4 {
    color: #495057;
    margin-bottom: 15px;
    font-size: 1.5rem;
    font-weight: 600;
}

.no-products-found p {
    color: #6c757d;
    margin-bottom: 10px;
    line-height: 1.6;
}

.no-products-found p:last-child {
    margin-bottom: 0;
    font-weight: 500;
    color: #007bff;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.product-card {
    border: 1px solid #ddd;
    border-radius: 10px;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    background: #fff;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.compatibility-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    background: #28a745;
    color: white;
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}