/* ============================================
   TextVideoHub.uz - Main Stylesheet
   Design: Green Modern Style
   Created: November 2025
   ============================================ */

/* === CSS VARIABLES === */
:root {
    /* Primary Colors */
    --primary: #059669;
    --primary-dark: #047857;
    --primary-light: #10B981;

    /* Backgrounds */
    --background: #FFFFFF;
    --background-alt: #F0FDF4;
    --background-dark: #1F2937;

    /* Text */
    --text-primary: #1F2937;
    --text-secondary: #4B5563;
    --text-light: #9CA3AF;
    --text-white: #FFFFFF;

    /* Additional */
    --success: #22C55E;
    --warning: #F59E0B;
    --error: #EF4444;
    --border: #E5E7EB;

    /* Spacing */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;
    --space-3xl: 64px;
    --space-4xl: 96px;

    /* Container */
    --container-max: 1200px;
    --container-padding: 20px;

    /* Typography */
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* === RESET & BASE === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background);
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--primary-dark);
}

img {
    max-width: 100%;
    height: auto;
}

ul {
    list-style: none;
}

/* === CONTAINER === */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* === TYPOGRAPHY === */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-primary);
}

h1 {
    font-size: 48px;
}

h2 {
    font-size: 36px;
    margin-bottom: var(--space-lg);
}

h3 {
    font-size: 24px;
}

h4 {
    font-size: 20px;
}

p {
    margin-bottom: var(--space-md);
}

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

.text-primary {
    color: var(--primary);
}

/* === BUTTONS === */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    text-align: center;
}

.btn-primary {
    background: var(--primary);
    color: var(--text-white);
}

.btn-primary:hover {
    background: var(--primary-dark);
    color: var(--text-white);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(5, 150, 105, 0.3);
}

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

.btn-secondary:hover {
    background: var(--primary);
    color: var(--text-white);
}

.btn-white {
    background: var(--text-white);
    color: var(--primary);
}

.btn-white:hover {
    background: var(--background-alt);
    color: var(--primary-dark);
    transform: translateY(-2px);
}

/* === HEADER / NAVIGATION === */
.header {
    background: var(--background);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-md) 0;
}

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

.logo span {
    color: var(--text-primary);
}

.nav-menu {
    display: flex;
    gap: var(--space-xl);
}

.nav-menu a {
    color: var(--text-secondary);
    font-weight: 500;
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width 0.3s ease;
}

.nav-menu a:hover {
    color: var(--primary);
}

.nav-menu a:hover::after {
    width: 100%;
}

.nav-cta {
    display: flex;
    gap: var(--space-md);
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-primary);
}

/* === HERO SECTION === */
.hero {
    padding: 160px 0 80px;
    background: linear-gradient(135deg, var(--background) 0%, var(--background-alt) 100%);
}

.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    margin-bottom: var(--space-lg);
}

.hero h1 span {
    color: var(--primary);
}

.hero-subtitle {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
}

.hero-features {
    display: flex;
    justify-content: center;
    gap: var(--space-xl);
    margin-bottom: var(--space-xl);
    flex-wrap: wrap;
}

.hero-feature {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--text-secondary);
}

.hero-feature i {
    color: var(--primary);
}

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

/* === SECTIONS === */
.section {
    padding: 80px 0;
}

.section-alt {
    background: var(--background-alt);
}

.section-dark {
    background: var(--background-dark);
    color: var(--text-white);
}

.section-green {
    background: var(--primary);
    color: var(--text-white);
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

.section-header h2 {
    position: relative;
    display: inline-block;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--primary);
}

.section-dark .section-header h2::after,
.section-green .section-header h2::after {
    background: var(--text-white);
}

.section-header p {
    color: var(--text-secondary);
    font-size: 18px;
    margin-top: var(--space-lg);
}

.section-dark .section-header p {
    color: var(--text-light);
}

/* === ABOUT SECTION === */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

.about-text h3 {
    margin-bottom: var(--space-md);
    color: var(--primary);
}

.about-text p {
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
}

.about-stats {
    display: flex;
    gap: var(--space-xl);
    margin-top: var(--space-xl);
}

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

.stat-number {
    font-size: 48px;
    font-weight: 700;
    color: var(--primary);
}

.stat-label {
    color: var(--text-secondary);
    font-size: 14px;
}

/* === SERVICES / PRICING CARDS === */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}

.service-card {
    background: var(--background);
    border-radius: 12px;
    padding: var(--space-xl);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    text-align: center;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
}

.service-card.featured {
    border: 2px solid var(--primary);
    position: relative;
}

.service-card.featured::before {
    content: 'Популярный';
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    color: var(--text-white);
    padding: 4px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.service-icon {
    width: 64px;
    height: 64px;
    background: var(--background-alt);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-lg);
    color: var(--primary);
    font-size: 24px;
}

.service-card h3 {
    margin-bottom: var(--space-sm);
}

.service-price {
    font-size: 36px;
    font-weight: 700;
    color: var(--primary);
    margin: var(--space-md) 0;
}

.service-price span {
    font-size: 16px;
    color: var(--text-secondary);
    font-weight: 400;
}

.service-features {
    text-align: left;
    margin: var(--space-lg) 0;
}

.service-features li {
    padding: var(--space-sm) 0;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.service-features li::before {
    content: '✓';
    color: var(--primary);
    font-weight: 700;
}

/* === ADVANTAGES === */
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-xl);
}

.advantage-item {
    text-align: center;
    padding: var(--space-lg);
}

.advantage-icon {
    width: 80px;
    height: 80px;
    background: var(--background-alt);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-lg);
    color: var(--primary);
    font-size: 32px;
    transition: all 0.3s ease;
}

.advantage-item:hover .advantage-icon {
    background: var(--primary);
    color: var(--text-white);
    transform: scale(1.1);
}

.advantage-item h4 {
    margin-bottom: var(--space-sm);
}

.advantage-item p {
    color: var(--text-secondary);
    font-size: 14px;
}

/* === CTA SECTION === */
.cta-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.cta-content h2 {
    color: var(--text-white);
    margin-bottom: var(--space-md);
}

.cta-content p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 18px;
    margin-bottom: var(--space-xl);
}

.cta-highlight {
    background: rgba(255, 255, 255, 0.2);
    padding: var(--space-md) var(--space-xl);
    border-radius: 8px;
    display: inline-block;
    margin-bottom: var(--space-xl);
}

/* === PORTFOLIO === */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}

.portfolio-card {
    background: var(--background);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.portfolio-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
}

.portfolio-image {
    height: 200px;
    background: var(--background-alt);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
}

.portfolio-content {
    padding: var(--space-lg);
}

.portfolio-tag {
    display: inline-block;
    background: var(--background-alt);
    color: var(--primary);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

.portfolio-content h4 {
    margin-bottom: var(--space-sm);
}

.portfolio-content p {
    color: var(--text-secondary);
    font-size: 14px;
}

/* === CONTACT INFO === */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-xl);
}

.contact-item {
    text-align: center;
    padding: var(--space-xl);
    background: var(--background);
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.contact-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
}

.contact-icon {
    width: 64px;
    height: 64px;
    background: var(--background-alt);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-md);
    color: var(--primary);
    font-size: 24px;
}

.contact-item h4 {
    margin-bottom: var(--space-sm);
}

.contact-item p {
    color: var(--text-secondary);
    font-size: 14px;
}

.contact-item a {
    font-weight: 600;
}

/* === FOOTER === */
.footer {
    background: var(--background-dark);
    color: var(--text-white);
    padding: var(--space-3xl) 0 var(--space-xl);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-3xl);
    margin-bottom: var(--space-2xl);
}

.footer-brand .logo {
    margin-bottom: var(--space-md);
}

.footer-brand p {
    color: var(--text-light);
    font-size: 14px;
}

.footer h5 {
    margin-bottom: var(--space-lg);
    font-size: 16px;
}

.footer-links li {
    margin-bottom: var(--space-sm);
}

.footer-links a {
    color: var(--text-light);
    font-size: 14px;
}

.footer-links a:hover {
    color: var(--text-white);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--space-xl);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-bottom p {
    color: var(--text-light);
    font-size: 14px;
    margin: 0;
}

/* === ANIMATIONS === */
.fade-up {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.6s ease forwards;
}

@keyframes fadeUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* === RESPONSIVE === */

/* Tablet */
@media (max-width: 991px) {
    h1 {
        font-size: 36px;
    }

    h2 {
        font-size: 28px;
    }

    .nav-menu {
        display: none;
    }

    .mobile-menu-btn {
        display: block;
    }

    .about-content {
        grid-template-columns: 1fr;
    }

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

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

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

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

    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
}

/* Mobile */
@media (max-width: 767px) {
    h1 {
        font-size: 32px;
    }

    h2 {
        font-size: 24px;
    }

    .section {
        padding: 48px 0;
    }

    .hero {
        padding: 120px 0 48px;
    }

    .hero-features {
        flex-direction: column;
        align-items: center;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .hero-buttons .btn {
        width: 100%;
        max-width: 280px;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .advantages-grid {
        grid-template-columns: 1fr;
    }

    .portfolio-grid {
        grid-template-columns: 1fr;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }

    .about-stats {
        flex-direction: column;
        gap: var(--space-lg);
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-bottom {
        flex-direction: column;
        gap: var(--space-md);
        text-align: center;
    }

    .nav-cta {
        display: none;
    }
}

/* Mobile Menu (when active) */
.nav-menu.active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--background);
    padding: var(--space-lg);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    gap: var(--space-md);
}