/* ========================================
   سیستم لندینگ پیج ثاقب
   Material Design + Dark/Light Mode
   Mobile-First + Responsive
======================================== */

/* بدون Google Fonts — در برخی شبکه‌ها پاسخ HTML برمی‌گردد و MIME mismatch می‌دهد */
@font-face {
    font-family: 'VazirLocal';
    src: local('Vazir'), local('Vazir FD'), local('Tahoma');
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}

/* ========================================
   متغیرهای CSS
======================================== */
:root {
    /* رنگ‌های اصلی */
    --primary-color: #d4a017;
    --primary-dark: #b8860b;
    --primary-light: #f0c14b;
    --secondary-color: #1e293b;
    --accent-color: #06b6d4;
    
    /* رنگ‌های حالت روز */
    --bg-color: #FFFFFF;
    --bg-secondary: #F5F5F5;
    --text-color: #212121;
    --text-secondary: #757575;
    --border-color: #E0E0E0;
    --card-bg: #FFFFFF;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.15);
    
    /* تایپوگرافی */
    --font-family: 'VazirLocal', 'Tahoma', 'Segoe UI', sans-serif;
    --font-size-base: 16px;
    --line-height-base: 1.6;
    
    /* فاصله‌ها */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 32px;
    --spacing-xl: 48px;
    
    /* انیمیشن */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s ease;
}

/* حالت شب */
body.dark-mode {
    --bg-color: #121212;
    --bg-secondary: #1E1E1E;
    --text-color: #FFFFFF;
    --text-secondary: #B0B0B0;
    --border-color: #2C2C2C;
    --card-bg: #1E1E1E;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.5);
}

/* ========================================
   استایل‌های پایه
======================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: var(--font-size-base);
}

body {
    font-family: var(--font-family);
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: var(--line-height-base);
    transition: background-color 0.3s ease, color 0.3s ease;
    overflow-x: hidden;
    position: relative;
}

/* بک‌گراند ثابت برای کل صفحه */
.fixed-background-wrapper {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.fixed-background-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('../images/background-1.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    background-blend-mode: overlay;
    transition: background-color 0.3s ease;
}

body.light-mode .fixed-background-image {
    background-color: rgba(0, 0, 0, 0.75);
}

body.dark-mode .fixed-background-image {
    background-color: rgba(0, 0, 0, 0.9);
}

.fixed-background-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(25, 118, 210, 0.3), rgba(33, 150, 243, 0.2));
    z-index: 1;
}

.fixed-particles-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
}

.fixed-particles-container canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* محتوای لندینگ */
.landing-content-wrapper {
    position: relative;
    z-index: 1;
    background: transparent;
}

/* تمام بخش‌ها باید شفاف باشند تا بک‌گراند دیده شود */
.section-padding,
.hero-section,
.features-section,
.benefits-section,
.databases-section,
.timeline-section,
.gallery-section,
.testimonials-section,
.trust-logos-section,
.faq-section,
.blog-section,
.demo-section,
.contact-section,
.pricing-section {
    background: transparent;
    position: relative;
}

/* کارت‌ها و باکس‌ها با پس‌زمینه نیمه شفاف */
.card,
.benefit-card,
.database-card,
.testimonial-card,
.blog-card,
.gallery-item,
.pricing-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

body.dark-mode .card,
body.dark-mode .benefit-card,
body.dark-mode .database-card,
body.dark-mode .testimonial-card,
body.dark-mode .blog-card,
body.dark-mode .gallery-item,
body.dark-mode .pricing-card {
    background: rgba(30, 30, 30, 0.95);
}

/* نوار ناوبری */
.landing-navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

body.dark-mode .landing-navbar {
    background: rgba(30, 30, 30, 0.95);
}

/* فوتر */
.landing-footer {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

body.dark-mode .landing-footer {
    background: rgba(30, 30, 30, 0.95);
}

/* ========================================
   نوار ناوبری
======================================== */
.landing-navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: var(--card-bg);
    box-shadow: var(--shadow);
    z-index: 1000;
    transition: var(--transition);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-sm) var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-md);
}

.nav-logo h2 {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
}

.nav-logo img {
    height: 40px;
    width: auto;
}

.nav-menu {
    display: flex;
    gap: var(--spacing-md);
}

.nav-link {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 8px;
    transition: var(--transition);
}

.nav-link:hover {
    background: var(--bg-secondary);
    color: var(--primary-color);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

/* دکمه تغییر تم */
.theme-toggle {
    background: var(--bg-secondary);
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}

.theme-toggle:hover {
    background: var(--primary-light);
    transform: rotate(180deg);
}

.theme-toggle .sun-icon,
.theme-toggle .moon-icon {
    position: absolute;
    transition: var(--transition);
}

body.light-mode .moon-icon {
    opacity: 0;
    transform: rotate(90deg);
}

body.dark-mode .sun-icon {
    opacity: 0;
    transform: rotate(-90deg);
}

/* دکمه‌ها */
.btn-primary,
.btn-outline,
.btn-secondary,
.btn-cta {
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-size: 16px;
    font-family: inherit;
}

.btn-primary {
    background: var(--primary-color);
    color: #FFFFFF;
    box-shadow: 0 2px 8px rgba(25, 118, 210, 0.3);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(25, 118, 210, 0.4);
}

.btn-outline {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-outline:hover {
    background: var(--primary-color);
    color: #FFFFFF;
}

.btn-cta {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: #FFFFFF;
    padding: 16px 32px;
    font-size: 18px;
    box-shadow: 0 4px 16px rgba(25, 118, 210, 0.4);
}

.btn-cta:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(25, 118, 210, 0.5);
}

.btn-large {
    padding: 16px 40px;
    font-size: 18px;
}

/* منوی موبایل */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-btn span {
    width: 24px;
    height: 3px;
    background: var(--text-color);
    border-radius: 2px;
    transition: var(--transition);
}

.mobile-menu {
    position: fixed;
    top: 72px;
    right: -100%;
    width: 280px;
    height: calc(100vh - 72px);
    background: var(--card-bg);
    box-shadow: var(--shadow);
    padding: var(--spacing-md);
    transition: var(--transition);
    z-index: 999;
}

.mobile-menu.active {
    right: 0;
}

.mobile-nav-link {
    display: block;
    color: var(--text-color);
    text-decoration: none;
    padding: var(--spacing-sm);
    border-radius: 8px;
    margin-bottom: var(--spacing-xs);
    transition: var(--transition);
}

.mobile-nav-link:hover {
    background: var(--bg-secondary);
    color: var(--primary-color);
}

.mobile-actions {
    margin-top: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

/* ========================================
   بخش Hero
======================================== */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    margin-top: 72px;
}

.hero-section.page-section {
    margin-top: 0;
}

.full-width-screen {
    width: 100%;
    height: 100vh;
    position: relative;
}

.hero-content-overlay {
    width: 100%;
    height: 100vh;
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-content-wrapper {
    position: relative;
    z-index: 2;
    width: 100%;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    text-align: center;
    padding: var(--spacing-xl);
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-md);
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.hero-text {
    color: #FFFFFF;
    z-index: 3;
    position: relative;
}

.hero-title.sub-title {
    font-size: 3.5rem;
    font-weight: 900;
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    color: #fff;
    display: block;
    text-align: center;
}

.hero-subtitle.detail-text {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.95;
    line-height: 1.8;
    color: #fff;
    display: block;
    text-align: center;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
}

.hero-buttons .back-btn {
    margin-top: 15px;
    z-index: 5;
    text-decoration: none;
}

.hero-buttons .back-btn .btn {
    padding: 14px 36px;
    color: #fff;
    border-radius: 999px;
    font-size: 16px;
    font-weight: 700;
    transition: all 0.3s ease;
    display: inline-block;
    letter-spacing: 0.02em;
}

/* دکمه ثانویه عمومی */
.btn-secondary {
    background: rgba(255, 255, 255, 0.2);
    color: #FFFFFF;
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.5);
}

.hero-video {
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    position: relative;
    background: #000;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hero-video:hover {
    transform: translateY(-5px);
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.4);
}

.video-wrapper {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 Aspect Ratio */
    height: 0;
    overflow: hidden;
    background: #000;
}

.video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
    z-index: 2;
}

.video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 3;
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.hero-video:hover .video-overlay {
    opacity: 1;
}

.video-play-icon {
    width: 80px;
    height: 80px;
    background: rgba(25, 118, 210, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: pulse 2s infinite;
    box-shadow: 0 4px 20px rgba(25, 118, 210, 0.5);
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 4px 20px rgba(25, 118, 210, 0.5);
    }
    50% {
        transform: scale(1.1);
        box-shadow: 0 6px 30px rgba(25, 118, 210, 0.7);
    }
}

.video-play-icon svg {
    width: 40px;
    height: 40px;
    margin-left: 4px; /* برای وسط‌چین شدن در RTL */
}

/* ========================================
   بخش‌های عمومی
======================================== */
.section-padding {
    padding: var(--spacing-xl) var(--spacing-md);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

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

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--text-color);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
}

/* ========================================
   بخش قابلیت‌ها (تب‌بندی پیشرفته)
======================================== */
.features-wrapper {
    background: var(--card-bg);
    border-radius: 24px;
    padding: var(--spacing-xl);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

body.dark-mode .features-wrapper {
    border-color: rgba(255, 255, 255, 0.05);
}

.tabs-header-wrapper {
    position: relative;
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--border-color);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    scrollbar-color: var(--primary-color) transparent;
}

.tabs-header-wrapper::-webkit-scrollbar {
    height: 6px;
}

.tabs-header-wrapper::-webkit-scrollbar-track {
    background: transparent;
}

.tabs-header-wrapper::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 3px;
}

.tabs-header {
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: nowrap;
    justify-content: center;
    position: relative;
    min-width: max-content;
    padding-bottom: 8px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.tabs-header::-webkit-scrollbar {
    display: none;
}

.tab-btn {
    position: relative;
    background: transparent;
    border: none;
    padding: 0;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-family: var(--font-family);
    overflow: hidden;
}

.tab-btn-inner {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 16px 24px;
    border-radius: 12px;
    transition: all 0.3s ease;
    position: relative;
    z-index: 2;
    white-space: nowrap;
}

.tab-btn:hover .tab-btn-inner {
    background: var(--bg-secondary);
    transform: translateY(-2px);
}

.tab-btn.active .tab-btn-inner {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: #FFFFFF;
    box-shadow: 0 4px 16px rgba(25, 118, 210, 0.3);
}

.tab-indicator {
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 2px 2px 0 0;
}

.tab-btn.active .tab-indicator {
    transform: scaleX(1);
}

.tab-icon {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s ease;
}

.tab-btn:hover .tab-icon {
    transform: scale(1.1) rotate(5deg);
}

.tab-btn.active .tab-icon {
    transform: scale(1.15);
}

.tab-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: brightness(0) invert(1);
}

.tab-btn:not(.active) .tab-icon img {
    filter: none;
}

.tab-icon svg {
    width: 100%;
    height: 100%;
}

.tab-text {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-color);
    transition: color 0.3s ease;
}

.tab-btn.active .tab-text {
    color: #FFFFFF;
}

.tabs-content-wrapper {
    position: relative;
    min-height: 400px;
}

.tab-content {
    display: none;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.tab-content.active {
    display: block;
    opacity: 1;
    transform: translateY(0);
    animation: featureSlideIn 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes featureSlideIn {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.feature-content-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.feature-text-wrapper {
    padding: var(--spacing-lg);
}

.feature-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 16px;
    margin-bottom: var(--spacing-md);
    box-shadow: 0 8px 24px rgba(25, 118, 210, 0.25);
    animation: badgePulse 2s ease-in-out infinite;
}

@keyframes badgePulse {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 8px 24px rgba(25, 118, 210, 0.25);
    }
    50% {
        transform: scale(1.05);
        box-shadow: 0 12px 32px rgba(25, 118, 210, 0.35);
    }
}

.badge-icon {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #FFFFFF;
}

.badge-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: brightness(0) invert(1);
}

.badge-icon svg {
    width: 100%;
    height: 100%;
}

.feature-title {
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--text-color);
    line-height: 1.3;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.feature-description {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
    font-weight: 400;
}

.feature-details {
    background: var(--bg-secondary);
    border-radius: 16px;
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    border-right: 4px solid var(--primary-color);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.feature-details-content {
    color: var(--text-secondary);
    line-height: 1.9;
    font-size: 1.05rem;
}

.feature-cta {
    margin-top: var(--spacing-lg);
}

.btn-feature-cta {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 16px 32px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: #FFFFFF;
    border-radius: 12px;
    font-weight: 600;
    font-size: 16px;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 16px rgba(25, 118, 210, 0.3);
}

.btn-feature-cta:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(25, 118, 210, 0.4);
}

.btn-feature-cta svg {
    transition: transform 0.3s ease;
}

.btn-feature-cta:hover svg {
    transform: translateX(4px);
}

.feature-visual {
    position: relative;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-image-wrapper {
    position: relative;
    width: 100%;
    max-width: 500px;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.feature-image-glow {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(25, 118, 210, 0.2) 0%, transparent 70%);
    animation: glowRotate 8s linear infinite;
    pointer-events: none;
}

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

.feature-image {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 20px;
    transition: transform 0.5s ease;
}

.feature-image-wrapper:hover .feature-image {
    transform: scale(1.05);
}

.feature-placeholder {
    width: 100%;
    height: 400px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    border-radius: 20px;
    border: 2px dashed var(--border-color);
    color: var(--text-secondary);
    text-align: center;
    padding: var(--spacing-xl);
}

.placeholder-icon {
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

.feature-placeholder p {
    font-size: 14px;
    margin-top: var(--spacing-sm);
}

.feature-image img {
    width: 100%;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

/* ========================================
   مزایای کلیدی
======================================== */
.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.benefit-card {
    background: var(--card-bg);
    padding: var(--spacing-lg);
    border-radius: 16px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
}

.benefit-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.benefit-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-light), var(--accent-color));
    border-radius: 50%;
    color: #FFFFFF;
}

.benefit-icon img {
    width: 48px;
    height: 48px;
}

.benefit-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-color);
}

.benefit-description {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ========================================
   بانک‌های اطلاعاتی (شمارنده)
======================================== */
.databases-section {
    background: transparent;
}

.databases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.database-card {
    background: var(--card-bg);
    padding: var(--spacing-lg);
    border-radius: 16px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
}

.database-card:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-hover);
}

.database-icon {
    width: 100px;
    height: 100px;
    margin: 0 auto var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
}

.database-icon img {
    width: 80px;
    height: 80px;
}

.database-name {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-color);
}

.database-counter {
    display: flex;
    flex-direction: column;
    margin-bottom: var(--spacing-md);
}

.counter {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 4px;
}

.counter-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.database-description {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* ========================================
   Timeline
======================================== */
.timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 100%;
    background: linear-gradient(to bottom, var(--primary-color), var(--accent-color));
    border-radius: 4px;
}

.timeline-item {
    position: relative;
    margin-bottom: var(--spacing-xl);
    width: calc(50% - 40px);
}

.timeline-item.right {
    margin-right: auto;
    padding-left: 40px;
}

.timeline-item.left {
    margin-left: auto;
    padding-right: 40px;
    text-align: left;
}

.timeline-content {
    background: var(--card-bg);
    padding: var(--spacing-md);
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.timeline-content:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-hover);
}

.timeline-year {
    display: inline-block;
    background: var(--primary-color);
    color: #FFFFFF;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.timeline-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--text-color);
}

.timeline-description {
    color: var(--text-secondary);
    line-height: 1.6;
}

.timeline-dot {
    position: absolute;
    top: 20px;
    width: 20px;
    height: 20px;
    background: var(--primary-color);
    border: 4px solid var(--bg-color);
    border-radius: 50%;
    box-shadow: 0 0 0 4px var(--primary-light);
}

.timeline-item.right .timeline-dot {
    right: -50px;
}

.timeline-item.left .timeline-dot {
    left: -50px;
}

/* ========================================
   سوالات متداول (Accordion)
======================================== */
.faq-accordion {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--card-bg);
    border-radius: 12px;
    margin-bottom: var(--spacing-sm);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: var(--transition);
}

.faq-question {
    width: 100%;
    background: none;
    border: none;
    padding: var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-family: var(--font-family);
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-color);
    text-align: right;
    transition: var(--transition);
}

.faq-question:hover {
    color: var(--primary-color);
}

.faq-icon {
    transition: transform 0.3s ease;
    flex-shrink: 0;
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 var(--spacing-md) var(--spacing-md);
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ========================================
   نظرات کاربران
======================================== */
.testimonials-slider {
    position: relative;
    overflow: hidden;
    padding: var(--spacing-md) 0;
}

.testimonials-container {
    display: flex;
    gap: var(--spacing-lg);
    transition: transform 0.5s ease;
}

.testimonial-card {
    background: var(--card-bg);
    padding: var(--spacing-lg);
    border-radius: 16px;
    box-shadow: var(--shadow);
    min-width: calc(33.333% - var(--spacing-lg));
    flex-shrink: 0;
}

.testimonial-header {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.testimonial-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
}

.testimonial-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.avatar-placeholder {
    width: 100%;
    height: 100%;
    background: var(--primary-color);
    color: #FFFFFF;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
}

.testimonial-name {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 4px;
}

.testimonial-position,
.testimonial-company {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.testimonial-rating {
    display: flex;
    gap: 4px;
    margin-bottom: var(--spacing-sm);
}

.star {
    color: #E0E0E0;
}

.star.filled {
    color: #FFC107;
}

.testimonial-comment {
    color: var(--text-secondary);
    line-height: 1.8;
}

.slider-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: var(--card-bg);
    border: none;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--shadow);
    transition: var(--transition);
    z-index: 10;
}

.slider-btn:hover {
    background: var(--primary-color);
    color: #FFFFFF;
}

.prev-btn {
    right: -24px;
}

.next-btn {
    left: -24px;
}

/* ========================================
   لوگوهای اعتمادسازی
======================================== */
.logos-marquee {
    overflow: hidden;
    padding: var(--spacing-lg) 0;
}

.logos-track {
    display: flex;
    gap: 60px;
}

.logo-item {
    flex-shrink: 0;
    width: 150px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    filter: grayscale(100%);
    opacity: 0.6;
    transition: var(--transition);
}

.logo-item:hover {
    filter: grayscale(0%);
    opacity: 1;
}

.logo-item img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

/* ========================================
   گالری
======================================== */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.gallery-item {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    cursor: pointer;
    aspect-ratio: 16 / 9;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.gallery-item:hover img {
    transform: scale(1.1);
}

.gallery-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
    color: #FFFFFF;
    padding: var(--spacing-md);
    transform: translateY(100%);
    transition: var(--transition);
}

.gallery-item:hover .gallery-overlay {
    transform: translateY(0);
}

.gallery-overlay h4 {
    font-size: 1.125rem;
    margin-bottom: 4px;
}

/* Lightbox */
.lightbox {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    z-index: 9999;
    justify-content: center;
    align-items: center;
    padding: var(--spacing-md);
}

.lightbox-img {
    max-width: 90%;
    max-height: 90%;
    border-radius: 8px;
}

.lightbox-close {
    position: absolute;
    top: 20px;
    left: 40px;
    font-size: 48px;
    color: #FFFFFF;
    cursor: pointer;
}

/* ========================================
   بلاگ
======================================== */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-lg);
}

.blog-card {
    background: var(--card-bg);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.blog-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.blog-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.blog-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.blog-card:hover .blog-image img {
    transform: scale(1.1);
}

.blog-category {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    background: var(--primary-color);
    color: #FFFFFF;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

.blog-content {
    padding: var(--spacing-md);
}

.blog-meta {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.blog-meta span {
    display: flex;
    align-items: center;
    gap: 4px;
}

.blog-title {
    margin-bottom: var(--spacing-sm);
}

.blog-title a {
    color: var(--text-color);
    text-decoration: none;
    font-size: 1.25rem;
    font-weight: 600;
    transition: var(--transition);
}

.blog-title a:hover {
    color: var(--primary-color);
}

.blog-excerpt {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
}

.blog-read-more {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: var(--transition);
}

.blog-read-more:hover {
    gap: 8px;
}

.blog-more {
    text-align: center;
    margin-top: var(--spacing-xl);
}

/* ========================================
   دمو
======================================== */
.demo-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.demo-credentials {
    background: var(--bg-secondary);
    padding: var(--spacing-md);
    border-radius: 12px;
    margin: var(--spacing-md) 0;
    display: flex;
    gap: var(--spacing-md);
}

.credential-box {
    flex: 1;
}

.credential-label {
    display: block;
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.credential-value {
    background: var(--card-bg);
    padding: var(--spacing-sm);
    border-radius: 8px;
    display: block;
    font-family: 'Courier New', monospace;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--primary-color);
}

.demo-features {
    margin: var(--spacing-md) 0 var(--spacing-lg);
}

.demo-feature {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    color: var(--text-color);
}

.demo-feature svg {
    color: var(--primary-color);
    flex-shrink: 0;
}

.demo-mockup {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.mockup-decoration {
    position: absolute;
    width: 100%;
    height: 100%;
    color: var(--primary-color);
    animation: rotate 20s linear infinite;
}

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

.mockup-screen {
    position: relative;
    z-index: 2;
    color: var(--primary-color);
}

/* ========================================
   فرم تماس
======================================== */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-xl);
}

.contact-info h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-color);
}

.contact-info p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.contact-item {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.contact-item svg {
    color: var(--primary-color);
    flex-shrink: 0;
}

.contact-item h4 {
    font-size: 1.125rem;
    margin-bottom: 4px;
    color: var(--text-color);
}

.contact-item p {
    color: var(--text-secondary);
    margin: 0;
}

.contact-form {
    background: var(--card-bg);
    padding: var(--spacing-lg);
    border-radius: 16px;
    box-shadow: var(--shadow);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
    color: var(--text-color);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-sm);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-family: var(--font-family);
    font-size: 16px;
    background: var(--bg-color);
    color: var(--text-color);
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(25, 118, 210, 0.1);
}

.form-message {
    margin-top: var(--spacing-md);
    padding: var(--spacing-sm);
    border-radius: 8px;
    display: none;
}

.form-message.success {
    background: #E8F5E9;
    color: #2E7D32;
    display: block;
}

.form-message.error {
    background: #FFEBEE;
    color: #C62828;
    display: block;
}

/* ========================================
   فوتر
======================================== */
.landing-footer {
    background: var(--bg-secondary);
    padding: var(--spacing-xl) var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: var(--spacing-md);
    color: var(--text-color);
}

.footer-section p,
.footer-section ul {
    color: var(--text-secondary);
    line-height: 1.8;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: var(--spacing-xs);
}

.footer-section a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
}

.footer-section a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
}

/* ========================================
   دکمه بازگشت به بالا
======================================== */
.back-to-top {
    position: fixed;
    bottom: var(--spacing-md);
    left: var(--spacing-md);
    width: 48px;
    height: 48px;
    background: var(--primary-color);
    color: #FFFFFF;
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--shadow);
    transition: var(--transition);
    opacity: 0;
    pointer-events: none;
    z-index: 999;
}

.back-to-top.show {
    opacity: 1;
    pointer-events: all;
}

.back-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

/* ========================================
   Responsive Design (Mobile-First)
======================================== */

/* تبلت */
@media (max-width: 1024px) {
    .hero-content,
    .feature-content-grid,
    .demo-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .timeline::before {
        right: 20px;
        left: auto;
    }
    
    .timeline-item,
    .timeline-item.right,
    .timeline-item.left {
        width: 100%;
        padding-right: 40px;
        padding-left: 0;
        text-align: right;
        margin-left: 0;
        margin-right: 0;
    }
    
    .timeline-dot {
        right: 10px !important;
        left: auto !important;
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
}

/* موبایل */
@media (max-width: 768px) {
    :root {
        --font-size-base: 14px;
        --spacing-xs: 6px;
        --spacing-sm: 12px;
        --spacing-md: 18px;
        --spacing-lg: 24px;
        --spacing-xl: 32px;
    }
    
    .nav-menu {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    /* بک‌گراند ثابت در موبایل */
    .fixed-background-image {
        background-attachment: scroll;
    }
    
    .hero-title.sub-title {
        font-size: 2rem;
    }
    
    .hero-subtitle.detail-text {
        font-size: 1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .hero-buttons .back-btn .btn {
        padding: 10px 24px;
        font-size: 14px;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .tabs-header-wrapper {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    .tabs-header {
        flex-direction: row;
        flex-wrap: nowrap;
        justify-content: flex-start;
        gap: var(--spacing-xs);
        padding-right: var(--spacing-md);
        padding-left: var(--spacing-md);
    }
    
    .tab-btn {
        flex-shrink: 0;
        min-width: auto;
    }
    
    .tab-btn-inner {
        padding: 12px 18px;
        white-space: nowrap;
    }
    
    .tab-text {
        font-size: 14px;
    }
    
    .tab-icon {
        width: 22px;
        height: 22px;
    }
    
    .feature-content-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .feature-visual {
        order: -1;
    }
    
    .feature-image-wrapper {
        max-width: 100%;
    }
    
    .benefits-grid,
    .databases-grid,
    .blog-grid,
    .gallery-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonial-card {
        min-width: 100%;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .slider-btn {
        width: 40px;
        height: 40px;
    }
    
    .prev-btn {
        right: -20px;
    }
    
    .next-btn {
        left: -20px;
    }
}

/* ========================================
   بهینه‌سازی‌های اضافی
======================================== */

/* اسکرول نرم */
html {
    scroll-padding-top: 80px;
}

/* بهینه‌سازی فونت */
body {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

/* انتخاب متن */
::selection {
    background: var(--primary-color);
    color: #FFFFFF;
}

/* لودینگ تصاویر */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* بهبود عملکرد انیمیشن */
* {
    will-change: auto;
}

.benefit-card,
.database-card,
.blog-card,
.gallery-item {
    will-change: transform;
}

/* پایان استایل‌ها */