/* متغیرهای تم */
:root {
  /* Default: Dark Mode */
  --bg-primary: #0a051a;
  --bg-secondary: #1e0c3a;
  --card-bg: #1a102e;
  --card-bg-hover: #140c24;
  --text-color: #ffffff;
  --text-secondary: #e0d6ff;
  --text-muted: #6b7280;
  --border-color: #2d1b45;
  --accent-gradient-start: #4ade80;
  --accent-gradient-end: #fbbf24;
  --accent-color: #4ade80;
  --error-color: #ef4444;
  --scrollbar-thumb: #4ade80;
  --scrollbar-track: #1a102e;
}

[data-theme="light"] {
  --bg-primary: #ffffff;
  --bg-secondary: #f8f9fa;
  --card-bg: #ffffff;
  --card-bg-hover: #f1f3f5;
  --text-color: #1a102e;
  --text-secondary: #2d1b45;
  --text-muted: #6b7280;
  --border-color: #cbd5e1;
  --accent-gradient-start: #22c55e;
  --accent-gradient-end: #f59e0b;
  --accent-color: #22c55e;
  --error-color: #dc2626;
  --scrollbar-thumb: #22c55e;
  --scrollbar-track: #f1f3f5;
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: 'Vazirmatn', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-color);
    line-height: 1.6;
    direction: rtl;
}
.section-title {
    text-align: center;
    font-size: 2rem;
    margin: 3rem 0 2rem;
    color: var(--text-secondary);
    position: relative;
    padding-bottom: 1rem;
}
.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-gradient-start), var(--accent-gradient-end));
    border-radius: 2px;
}

/* Pricing Section */
.pricing-section {
    padding: 3rem 2rem;
    background: linear-gradient(135deg, var(--bg-secondary), var(--bg-primary));
    position: relative;
    overflow: hidden;
}
.pricing-section::before {
    content: '';
    position: absolute;
    top: -100px;
    left: -100px;
    right: -100px;
    height: 300px;
    background: radial-gradient(circle, rgba(74, 222, 128, 0.1) 0%, rgba(0, 0, 0, 0) 70%);
    z-index: -1;
}
.plans-container {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
    max-width: 1200px;
    margin: 0 auto;
}
.plan-card {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    min-width: 300px;
    max-width: 350px;
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
    flex-grow: 1;
}
.plan-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(34, 197, 94, 0.2);
}
.plan-card.special,
.plan-card.professional,
.plan-card.economical {
    background: linear-gradient(135deg, var(--card-bg), var(--card-bg-hover));
}
.plan-header {
    background: linear-gradient(90deg, var(--accent-gradient-start), var(--accent-gradient-end));
    color: var(--bg-primary);
    padding: 1rem;
    border-radius: 8px 8px 0 0;
    font-weight: 600;
    text-align: center;
    font-size: 1.1rem;
    margin: -2rem -2rem 1rem -2rem;
}
.price {
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-color);
    margin: 1rem 0;
    text-align: center;
}
.old-price {
    font-size: 1rem;
    color: var(--text-muted);
    text-decoration: line-through;
    margin-bottom: 1.5rem;
    text-align: center;
}
.features {
    list-style: none;
    margin-top: 1.5rem;
    max-height: 600px;
    overflow-y: auto;
    padding-right: 0.5rem;
    scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
    scrollbar-width: thin;
}
.features::-webkit-scrollbar {
    width: 6px;
}
.features::-webkit-scrollbar-thumb {
    background-color: var(--scrollbar-thumb);
    border-radius: 3px;
}
.features::-webkit-scrollbar-track {
    background-color: var(--scrollbar-track);
}
.feature-item {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    font-size: 0.95rem;
}
.feature-item i {
    font-size: 1rem;
    flex-shrink: 0;
}
.feature-item .fas.fa-check-circle {
    color: var(--accent-color);
}
.feature-item .fas.fa-times-circle {
    color: var(--error-color);
}

/* FAQ Section */
.faq-section {
    padding: 3rem 2rem;
    background: linear-gradient(135deg, var(--bg-primary), var(--bg-secondary));
    margin-top: 3rem;
}
.stn {
    background: linear-gradient(90deg, var(--accent-gradient-start), var(--accent-gradient-end)) !important;
    font-weight: 800 !important;
    color: var(--bg-primary) !important;
}
.faq-item {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}
.faq-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 30px rgba(34, 197, 94, 0.1);
}
.faq-item h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem;
    border-bottom: 2px solid transparent;
    transition: border-color 0.3s ease;
}
.faq-item h3:hover {
    border-color: var(--accent-color);
}
.faq-content {
    margin-top: 1rem;
    padding: 2rem;
    background: var(--card-bg-hover);
    border-radius: 8px;
    line-height: 1.8;
    color: var(--text-color);
}
.faq-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
    background: var(--card-bg-hover);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}
.faq-content th,
.faq-content td {
    padding: 0.75rem 1rem;
    text-align: center;
    border: 1px solid var(--border-color);
    color: var(--text-color);
}
.faq-content th {
    background: linear-gradient(90deg, var(--accent-gradient-start), var(--accent-gradient-end));
    font-weight: 800 !important;
    color: #5c0081;
}
.faq-content tr:nth-child(even) {
    background: var(--card-bg-hover);
}
.faq-content ul {
    padding-right: 1.5rem;
    padding-left: 0;
    margin: 1rem 0;
}
.faq-content li {
    margin-bottom: 0.5rem;
}

/* Responsive Design */
@media (max-width: 1200px) {
    .plans-container {
        flex-direction: column;
        align-items: center;
    }
    .plan-card {
        max-width: 600px;
        width: 90%;
    }
}
@media (max-width: 768px) {
    .section-title {
        font-size: 1.5rem;
    }
    .pricing-section,
    .faq-section {
        padding: 2rem 1rem;
    }
    .plan-header {
        font-size: 1rem;
        padding: 0.75rem;
    }
    .price {
        font-size: 1.5rem;
    }
    .faq-content {
        padding: 0.75rem;
    }
    .faq-content table {
        display: block;
        overflow-x: auto;
        white-space: nowrap;
        font-size: 0.85rem;
        max-width: 100%;
    }
    .faq-content th,
    .faq-content td {
        padding: 0.5rem 0.75rem;
    }
}
@media (max-width: 480px) {
    .section-title {
        font-size: 1.25rem;
    }
    .plan-card {
        padding: 1.5rem;
        min-width: unset;
        width: 100%;
    }
    .plan-card .price {
        font-size: 1.75rem;
    }
    .features {
        max-height: 400px;
        padding-right: 0;
    }
    .feature-item {
        padding: 0.5rem;
        font-size: 0.85rem;
    }
    .faq-item {
        padding: 1.5rem;
    }
    .faq-content {
        padding: 0.5rem;
    }
    .faq-content table {
        font-size: 0.75rem;
    }
}

/* دکمه شناور تم */
#theme-toggle {
    position: fixed;
    bottom: 20px;
    left: 20px;
    z-index: 10000;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--card-bg);
    border: 2px solid var(--accent-color);
    color: var(--text-color);
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
    transition: all 0.3s ease;
}
#theme-toggle:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 16px rgba(0,0,0,0.4);
}