/* ============================================
   MPC-HC Official Website - Main Stylesheet
   ============================================ */

:root {
    --primary-dark: #1a1a2e;
    --primary-darker: #0f1419;
    --accent-cyan: #00d4aa;
    --accent-blue: #00b8d4;
    --gray-light: #f5f5f5;
    --gray-medium: #e0e0e0;
    --gray-dark: #666;
    --white: #ffffff;
    --text-dark: #333;
    --text-light: #888;
    --shadow: rgba(0, 0, 0, 0.1);
    --shadow-hover: rgba(0, 212, 170, 0.3);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--white);
    overflow-x: hidden;
}

/* ============================================
   Typography
   ============================================ */

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--primary-dark);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p {
    margin-bottom: 1rem;
    color: var(--text-dark);
}

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

a:hover {
    color: var(--accent-blue);
}

/* ============================================
   Header & Navigation
   ============================================ */

header {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

nav {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1.25rem 2.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 3rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
    text-decoration: none;
    transition: transform 0.3s ease;
}

.logo:hover {
    transform: translateY(-2px);
}

.logo img {
    height: 44px;
    width: auto;
    transition: transform 0.3s ease;
}

.logo:hover img {
    transform: scale(1.05);
}

.logo-text {
    font-size: 1.6rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--accent-cyan) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.5px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 0.75rem;
    align-items: center;
    margin: 0 auto;
}

.nav-links a {
    color: var(--text-dark);
    font-weight: 600;
    padding: 0.75rem 1.25rem;
    position: relative;
    border-radius: 8px;
    transition: all 0.3s ease;
    font-size: 0.95rem;
}

.nav-links a::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
    border-radius: 8px;
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: -1;
}

.nav-links a:hover {
    color: var(--white);
    transform: translateY(-2px);
}

.nav-links a:hover::before {
    opacity: 1;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.75rem;
    cursor: pointer;
    color: var(--primary-dark);
    padding: 0.5rem;
    border-radius: 6px;
    transition: all 0.3s ease;
}

.mobile-menu-toggle:hover {
    background: var(--gray-light);
    color: var(--accent-cyan);
}

/* ============================================
   Language Selector
   ============================================ */

.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-left: 2rem;
}

.language-selector {
    position: relative;
}

.language-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--white);
    border: 1px solid var(--gray-medium);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 600;
    color: var(--text-dark);
    font-size: 0.9rem;
}

.language-btn:hover {
    background: var(--gray-light);
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
}

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

.language-selector.active .language-btn svg {
    transform: rotate(180deg);
}

.flag-icon {
    width: 20px;
    height: 15px;
    object-fit: cover;
    border-radius: 2px;
    border: 1px solid rgba(0, 0, 0, 0.1);
}

.language-dropdown {
    position: absolute;
    top: calc(100% + 0.5rem);
    right: 0;
    background: var(--white);
    border-radius: 12px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
    min-width: 180px;
    max-height: 400px;
    overflow-y: auto;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 1000;
    border: 1px solid var(--gray-medium);
}

.language-selector.active .language-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.language-option {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    color: var(--text-dark);
    text-decoration: none;
    transition: all 0.3s ease;
    border-bottom: 1px solid var(--gray-light);
}

.language-option:last-child {
    border-bottom: none;
}

.language-option:hover {
    background: var(--gray-light);
    color: var(--accent-cyan);
    padding-left: 1.25rem;
}

.language-option .flag-icon {
    flex-shrink: 0;
}

.language-option span {
    font-size: 0.9rem;
    font-weight: 500;
}

/* ============================================
   Hero Section
   ============================================ */

.hero {
    background: linear-gradient(135deg, #0f1419 0%, #1a1a2e 50%, #16213e 100%);
    color: var(--white);
    padding: 0;
    position: relative;
    overflow: hidden;
    min-height: 90vh;
    display: flex;
    align-items: center;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(0, 212, 170, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(0, 184, 212, 0.1) 0%, transparent 50%);
    z-index: 0;
}

.hero-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 6rem 2rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-badge {
    display: inline-block;
    padding: 0.5rem 1.25rem;
    background: rgba(0, 212, 170, 0.15);
    border: 1px solid rgba(0, 212, 170, 0.3);
    border-radius: 50px;
    margin-bottom: 2rem;
    animation: fadeInUp 0.6s ease;
}

.hero-badge span {
    color: var(--accent-cyan);
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.hero-title {
    margin-bottom: 1.5rem;
    animation: fadeInUp 0.8s ease;
}

.hero-title-main {
    display: block;
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    color: var(--white);
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, #ffffff 0%, rgba(255, 255, 255, 0.9) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-title-sub {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-cyan);
    line-height: 1.2;
}

.hero-description {
    font-size: 1.25rem;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 2.5rem;
    max-width: 550px;
    animation: fadeInUp 1s ease;
}

.hero-features {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-bottom: 2.5rem;
    animation: fadeInUp 1.2s ease;
}

.hero-feature-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.95rem;
}

.hero-feature-item svg {
    color: var(--accent-cyan);
    flex-shrink: 0;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 3rem;
    animation: fadeInUp 1.4s ease;
}

.hero-actions .btn {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
}

.hero-stats {
    display: flex;
    gap: 3rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    animation: fadeInUp 1.6s ease;
}

.hero-stat {
    text-align: left;
}

.hero-stat-number {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--accent-cyan);
    margin-bottom: 0.25rem;
}

.hero-stat-label {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.7);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.hero-image-wrapper {
    position: relative;
    animation: fadeInUp 1.2s ease;
}

.hero-image-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120%;
    height: 120%;
    background: radial-gradient(circle, rgba(0, 212, 170, 0.3) 0%, transparent 70%);
    filter: blur(60px);
    z-index: 0;
    animation: pulse 3s ease-in-out infinite;
}

.hero-image-container {
    position: relative;
    z-index: 1;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 
        0 25px 50px rgba(0, 0, 0, 0.5),
        0 0 0 1px rgba(255, 255, 255, 0.1);
    transform: perspective(1000px) rotateY(-5deg) rotateX(5deg);
    transition: transform 0.3s ease;
}

.hero-image-container:hover {
    transform: perspective(1000px) rotateY(0deg) rotateX(0deg) scale(1.02);
}

.hero-main-image {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 20px;
}

.hero-image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 212, 170, 0.1) 0%, transparent 100%);
    pointer-events: none;
}

.hero-floating-elements {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 0;
    pointer-events: none;
}

.floating-element {
    position: absolute;
    border-radius: 50%;
    background: rgba(0, 212, 170, 0.1);
    backdrop-filter: blur(10px);
    animation: float 6s ease-in-out infinite;
}

.floating-1 {
    width: 100px;
    height: 100px;
    top: 10%;
    left: -5%;
    animation-delay: 0s;
}

.floating-2 {
    width: 60px;
    height: 60px;
    bottom: 20%;
    right: -3%;
    animation-delay: 2s;
}

.floating-3 {
    width: 80px;
    height: 80px;
    top: 60%;
    right: 10%;
    animation-delay: 4s;
}

.hero-wave {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 120px;
    z-index: 1;
    overflow: hidden;
}

.hero-wave svg {
    width: 100%;
    height: 100%;
    display: block;
}

@keyframes pulse {
    0%, 100% {
        opacity: 0.5;
        transform: translate(-50%, -50%) scale(1);
    }
    50% {
        opacity: 0.8;
        transform: translate(-50%, -50%) scale(1.1);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) translateX(0);
    }
    33% {
        transform: translateY(-20px) translateX(10px);
    }
    66% {
        transform: translateY(10px) translateX(-10px);
    }
}

/* ============================================
   Buttons
   ============================================ */

.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
    text-decoration: none;
}

.btn-primary {
    background: var(--accent-cyan);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(0, 212, 170, 0.4);
}

.btn-primary:hover {
    background: #0097a7;
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 151, 167, 0.5);
}

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

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

.btn-large {
    padding: 1.25rem 3rem;
    font-size: 1.25rem;
}

/* ============================================
   Container & Sections
   ============================================ */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: 5rem 0;
}

.section-title {
    text-align: center;
    margin-bottom: 4rem;
    position: relative;
}

.section-title::before {
    content: '';
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-cyan), var(--accent-blue));
    border-radius: 2px;
}

.section-title h2 {
    font-size: 2.75rem;
    margin-bottom: 1rem;
    font-weight: 700;
    color: var(--primary-dark);
}

.section-title p {
    font-size: 1.125rem;
    color: var(--text-light);
    max-width: 650px;
    margin: 0 auto;
    line-height: 1.8;
}

/* ============================================
   Features Grid
   ============================================ */

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    background: var(--white);
    padding: 2.5rem 2rem;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    text-align: center;
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-cyan), var(--accent-blue));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(0, 212, 170, 0.2);
    border-color: rgba(0, 212, 170, 0.2);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    box-shadow: 0 4px 15px rgba(0, 212, 170, 0.3);
    transition: all 0.3s ease;
}

.feature-card:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 6px 20px rgba(0, 212, 170, 0.4);
}

.feature-card h3 {
    margin-bottom: 1rem;
    color: var(--primary-dark);
    font-size: 1.5rem;
    font-weight: 700;
}

.feature-card p {
    color: var(--text-light);
    line-height: 1.8;
    font-size: 0.95rem;
}

.feature-image {
    width: 100%;
    height: 220px;
    object-fit: cover;
    border-radius: 12px;
    margin-bottom: 1.5rem;
    transition: transform 0.3s ease;
}

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

/* ============================================
   Screenshots Gallery
   ============================================ */

.screenshots-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 3rem;
}

.screenshot-item {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    cursor: pointer;
    box-shadow: 0 4px 15px var(--shadow);
    transition: all 0.3s ease;
}

.screenshot-item:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 25px var(--shadow-hover);
}

.screenshot-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    display: block;
}

.screenshot-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.screenshot-item:hover .screenshot-overlay {
    opacity: 1;
}

.screenshot-overlay svg {
    width: 48px;
    height: 48px;
    fill: var(--white);
}

/* ============================================
   Showcase Block Section
   ============================================ */

.showcase-section {
    background: var(--white);
}

.showcase-block {
    margin-bottom: 6rem;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.showcase-block.visible {
    opacity: 1;
    transform: translateY(0);
}

.showcase-block:last-child {
    margin-bottom: 0;
}

.showcase-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.showcase-reverse {
    direction: rtl;
}

.showcase-reverse > * {
    direction: ltr;
}

.showcase-text {
    padding: 2rem 0;
}

.showcase-text h2 {
    font-size: 2.5rem;
    color: var(--primary-dark);
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.showcase-text p {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--text-dark);
    margin-bottom: 2rem;
}

.showcase-features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.showcase-features li {
    display: flex;
    align-items: center;
    gap: 1rem;
    color: var(--text-dark);
    font-size: 1rem;
}

.showcase-features li svg {
    color: var(--accent-cyan);
    flex-shrink: 0;
}

.showcase-image {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.showcase-image:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 50px rgba(0, 212, 170, 0.2);
}

.showcase-image img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 16px;
}

/* ============================================
   Page Hero (for inner pages)
   ============================================ */

.page-hero {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-darker) 100%);
    color: var(--white);
    padding: 5rem 0;
    position: relative;
    overflow: hidden;
}

.page-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(0, 212, 170, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(0, 184, 212, 0.12) 0%, transparent 50%);
    z-index: 0;
}

.page-hero .container {
    position: relative;
    z-index: 1;
}

.page-hero-content {
    text-align: center;
    position: relative;
    z-index: 1;
    max-width: 900px;
    margin: 0 auto;
    padding: 0 2rem;
}

.page-hero-content h1 {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--white);
    margin-bottom: 1.5rem;
    line-height: 1.2;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.page-hero-content p {
    font-size: 1.35rem;
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: 2.5rem;
    line-height: 1.8;
    text-shadow: 0 1px 5px rgba(0, 0, 0, 0.2);
}

.page-hero-content .btn {
    margin-top: 1rem;
}

/* ============================================
   Why Choose Section
   ============================================ */

.why-choose {
    background: var(--gray-light);
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2.5rem;
    margin-top: 3rem;
}

.why-item {
    text-align: center;
    padding: 2.5rem 2rem;
    background: var(--white);
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.why-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-cyan), var(--accent-blue));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.why-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 30px rgba(0, 212, 170, 0.2);
    border-color: rgba(0, 212, 170, 0.2);
}

.why-item:hover::before {
    transform: scaleX(1);
}

.why-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    transition: all 0.3s ease;
}

.why-item:hover .why-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 8px 20px rgba(0, 212, 170, 0.4);
}

.why-item h3 {
    color: var(--primary-dark);
    margin-bottom: 1rem;
    font-size: 1.5rem;
    font-weight: 700;
}

.why-item p {
    color: var(--text-light);
    line-height: 1.8;
    font-size: 0.95rem;
}

/* ============================================
   Download Card Section
   ============================================ */

.download-section {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-darker) 100%);
    position: relative;
    overflow: hidden;
}

.download-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 30% 50%, rgba(0, 212, 170, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 70% 80%, rgba(0, 184, 212, 0.1) 0%, transparent 50%);
    z-index: 0;
}

.download-card {
    background: var(--white);
    border-radius: 24px;
    padding: 3rem;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    position: relative;
    z-index: 1;
    max-width: 900px;
    margin: 0 auto;
}

.download-card-header {
    text-align: center;
    margin-bottom: 3rem;
}

.download-badge {
    display: inline-block;
    margin-bottom: 1.5rem;
}

.badge-text {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
    color: var(--white);
    font-size: 0.875rem;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    border-radius: 50px;
    box-shadow: 0 4px 15px rgba(0, 212, 170, 0.4);
    animation: badgePulse 4s ease-in-out infinite;
}

@keyframes badgePulse {
    0%, 100% {
        box-shadow: 0 4px 15px rgba(0, 212, 170, 0.4);
        transform: scale(1);
    }
    50% {
        box-shadow: 0 6px 20px rgba(0, 212, 170, 0.5);
        transform: scale(1.02);
    }
}

.download-title-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.download-icon {
    width: 48px;
    height: 48px;
    object-fit: contain;
}

.download-card-header h2 {
    font-size: 2.5rem;
    color: var(--primary-dark);
    margin: 0;
}

.download-card-header p {
    font-size: 1.125rem;
    color: var(--text-light);
}

.download-card-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.download-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.download-feature {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-dark);
    font-size: 1rem;
}

.download-feature svg {
    color: var(--accent-cyan);
    flex-shrink: 0;
}

.download-action {
    text-align: center;
    padding: 2rem;
    background: var(--gray-light);
    border-radius: 16px;
}

.download-action .btn {
    width: 100%;
    justify-content: center;
    margin-bottom: 1rem;
    font-size: 1.25rem;
    padding: 1.25rem 2rem;
}

.download-info {
    font-size: 0.875rem;
    color: var(--text-light);
    margin: 0;
    line-height: 1.6;
}

/* ============================================
   Footer
   ============================================ */

footer {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-darker) 100%);
    color: var(--white);
    padding: 4rem 0 2rem;
    position: relative;
    overflow: hidden;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 30%, rgba(0, 212, 170, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(0, 184, 212, 0.1) 0%, transparent 50%);
    z-index: 0;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
    position: relative;
    z-index: 1;
}

.footer-about {
    max-width: 350px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

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

.footer-logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
}

.footer-about p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.footer-download-btn {
    margin-top: 1.5rem;
}

.footer-download-btn .btn {
    padding: 0.75rem 1.5rem;
    font-size: 0.95rem;
}

.footer-section h3 {
    color: var(--white);
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    font-weight: 600;
    position: relative;
    padding-bottom: 0.75rem;
}

.footer-section h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: var(--accent-cyan);
}

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

.footer-section ul li {
    margin-bottom: 0.75rem;
}

.footer-section a {
    color: rgba(255, 255, 255, 0.75);
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.95rem;
}

.footer-section a:hover {
    color: var(--accent-cyan);
    transform: translateX(5px);
}

.footer-section a svg {
    flex-shrink: 0;
    opacity: 0.7;
    transition: opacity 0.3s ease;
}

.footer-section a:hover svg {
    opacity: 1;
}

.footer-version {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-version p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.85rem;
    margin-bottom: 0.5rem;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
    position: relative;
    z-index: 1;
}

/* ============================================
   Lightbox
   ============================================ */

.lightbox {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    z-index: 9999;
    justify-content: center;
    align-items: center;
    flex-direction: column;
}

.lightbox.active {
    display: flex;
}

.lightbox-content {
    position: relative;
    max-width: 90%;
    max-height: 80vh;
    margin-bottom: 1rem;
}

.lightbox-content img {
    max-width: 100%;
    max-height: 80vh;
    object-fit: contain;
    border-radius: 8px;
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 30px;
    font-size: 3rem;
    color: var(--white);
    cursor: pointer;
    background: none;
    border: none;
    z-index: 10000;
    transition: transform 0.3s ease;
}

.lightbox-close:hover {
    transform: rotate(90deg);
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.2);
    color: var(--white);
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox-nav:hover {
    background: rgba(255, 255, 255, 0.3);
}

.lightbox-prev {
    left: 20px;
}

.lightbox-next {
    right: 20px;
}

.lightbox-thumbnails {
    display: flex;
    gap: 0.5rem;
    padding: 1rem;
    overflow-x: auto;
    max-width: 90%;
    justify-content: center;
}

.lightbox-thumbnail {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border-radius: 4px;
    cursor: pointer;
    opacity: 0.6;
    transition: opacity 0.3s ease;
    border: 2px solid transparent;
}

.lightbox-thumbnail:hover,
.lightbox-thumbnail.active {
    opacity: 1;
    border-color: var(--accent-cyan);
}

.lightbox-info {
    color: var(--white);
    text-align: center;
    margin-top: 1rem;
}

/* ============================================
   Changelog
   ============================================ */

.changelog-item {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    margin-bottom: 2rem;
    border: 2px solid transparent;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.changelog-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.changelog-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0, 212, 170, 0.15);
    border-color: rgba(0, 212, 170, 0.2);
}

.changelog-item:hover::before {
    opacity: 1;
}

.changelog-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--gray-light);
}

.changelog-version {
    color: var(--accent-cyan);
    font-size: 1.75rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.changelog-date {
    color: var(--text-light);
    font-size: 0.95rem;
    font-weight: 500;
    padding: 0.5rem 1rem;
    background: var(--gray-light);
    border-radius: 8px;
}

.changelog-content {
    position: relative;
}

.changelog-content p {
    font-size: 1.125rem;
    color: var(--text-dark);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.changelog-content ul {
    margin-left: 1.5rem;
    margin-top: 1rem;
    list-style: none;
    padding: 0;
}

.changelog-content li {
    margin-bottom: 0.75rem;
    color: var(--text-dark);
    padding-left: 1.5rem;
    position: relative;
    line-height: 1.7;
}

.changelog-content li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent-cyan);
    font-weight: 700;
    font-size: 1.1rem;
}

/* ============================================
   Help & FAQ
   ============================================ */

.faq-item {
    background: var(--white);
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 2px 10px var(--shadow);
    margin-bottom: 1rem;
}

.faq-question {
    font-weight: 600;
    color: var(--primary-dark);
    margin-bottom: 0.5rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-answer {
    color: var(--text-light);
    margin-top: 1rem;
    display: none;
}

.faq-item.active .faq-answer {
    display: block;
}

/* ============================================
   Contact Form
   ============================================ */

.contact-form {
    max-width: 600px;
    margin: 0 auto;
    background: var(--white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 15px var(--shadow);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--gray-medium);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-cyan);
}

.form-group textarea {
    resize: vertical;
    min-height: 150px;
}

/* ============================================
   Animations
   ============================================ */

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

.fade-in {
    animation: fadeInUp 0.6s ease;
}

/* ============================================
   Responsive Design
   ============================================ */

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
    }

    .header-actions {
        order: -1;
    }

    .language-btn span {
        display: none;
    }

    .language-dropdown {
        right: auto;
        left: 0;
    }

    .nav-links {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        background: var(--white);
        flex-direction: column;
        padding: 2rem;
        box-shadow: 0 4px 15px var(--shadow);
        transition: left 0.3s ease;
    }

    .nav-links.active {
        left: 0;
    }

    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }

    .hero-container {
        grid-template-columns: 1fr;
        gap: 3rem;
        padding: 4rem 1.5rem;
        text-align: center;
    }

    .hero-title-main {
        font-size: 2.5rem;
    }

    .hero-title-sub {
        font-size: 1.75rem;
    }

    .hero-description {
        font-size: 1.1rem;
        max-width: 100%;
    }

    .hero-features {
        justify-content: center;
    }

    .hero-actions {
        justify-content: center;
    }

    .hero-stats {
        justify-content: center;
    }

    .hero-image-container {
        transform: none;
    }

    .hero-image-container:hover {
        transform: scale(1.02);
    }

    .showcase-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .showcase-reverse {
        direction: ltr;
    }

    .showcase-text {
        text-align: center;
        padding: 1rem 0;
    }

    .showcase-text h2 {
        font-size: 2rem;
    }

    .showcase-features {
        align-items: flex-start;
    }

    .download-card {
        padding: 2rem 1.5rem;
    }

    .download-card-header h2 {
        font-size: 2rem;
    }

    .download-card-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .download-features {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .footer-about {
        max-width: 100%;
    }

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

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

    .section {
        padding: 3rem 0;
    }

    .lightbox-nav {
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }

    .lightbox-prev {
        left: 10px;
    }

    .lightbox-next {
        right: 10px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }

    .hero {
        padding: 3rem 1rem;
    }

    .btn {
        padding: 0.75rem 1.5rem;
        font-size: 1rem;
    }

    .btn-large {
        padding: 1rem 2rem;
        font-size: 1.1rem;
    }
}

/* ============================================
   Utility Classes
   ============================================ */

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

.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }

.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mb-3 { margin-bottom: 3rem; }