/**
 * Sub2Unlock - Professional Dark Theme with Red Accents
 * Enhanced with friendly design and better responsiveness
 */

:root {
    --dark-bg: #0d0d0d;
    --dark-card: #1a1a1a;
    --dark-hover: #252525;
    --red-primary: #ff3838;
    --red-hover: #ff5252;
    --red-dark: #cc2d2d;
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --text-muted: #707070;
    --border-color: #2a2a2a;
    --success: #00ff88;
    --warning: #ffaa00;
    --gradient-primary: linear-gradient(135deg, #ff3838, #ff5252);
    --gradient-dark: linear-gradient(180deg, #1a1a1a, #0d0d0d);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.6);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
}

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

html {
    scroll-behavior: smooth;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    background: rgba(26, 26, 26, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    padding: 1.2rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-md);
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
    text-decoration: none;
    transition: transform 0.3s ease;
}

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

.logo i {
    color: var(--red-primary);
    font-size: 2rem;
    filter: drop-shadow(0 0 10px rgba(255, 56, 56, 0.5));
}

nav {
    display: flex;
    gap: 35px;
    align-items: center;
}

nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    position: relative;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
}

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

nav a.active {
    color: var(--red-primary);
    background: rgba(255, 56, 56, 0.1);
}

nav a.active::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    background: var(--dark-card);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    font-size: 1.5rem;
    padding: 10px 15px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.3s ease;
}

.mobile-menu-toggle:hover {
    background: var(--red-primary);
    border-color: var(--red-primary);
}

.mobile-menu-toggle.active i:before {
    content: '\f00d'; /* Font Awesome times icon */
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 32px;
    border-radius: var(--radius-md);
    font-weight: 700;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    cursor: pointer;
    font-size: 1rem;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 20px rgba(255, 56, 56, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(255, 56, 56, 0.6);
}

.btn-primary:active {
    transform: translateY(-1px);
}

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

.btn-secondary:hover {
    background: var(--dark-card);
    border-color: var(--red-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-outline:hover {
    background: var(--red-primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(255, 56, 56, 0.4);
}

.btn-large {
    padding: 18px 40px;
    font-size: 1.1rem;
}

/* Hero Section */
.hero {
    padding: 80px 0;
    text-align: center;
    background: linear-gradient(180deg, var(--dark-bg) 0%, var(--dark-card) 100%);
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    background: linear-gradient(135deg, var(--text-primary), var(--red-primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto 40px;
}

/* Cards */
.card {
    background: var(--dark-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 30px;
    transition: all 0.3s;
}

.card:hover {
    border-color: var(--red-primary);
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(255, 56, 56, 0.1);
}

.card h3 {
    color: var(--text-primary);
    margin-bottom: 15px;
    font-size: 1.5rem;
}

.card p {
    color: var(--text-secondary);
}

/* Grid */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin: 40px 0;
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
}

/* Form */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-secondary);
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px;
    background: var(--dark-hover);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: all 0.3s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--red-primary);
    box-shadow: 0 0 0 3px rgba(255, 56, 56, 0.1);
}

.form-group small {
    display: block;
    margin-top: 5px;
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* Platform Badge */
.platform-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--dark-hover);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.platform-badge i {
    font-size: 1.1rem;
}

/* Stats */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin: 30px 0;
}

.stat-card {
    background: var(--dark-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 25px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--red-primary);
}

.stat-card i {
    font-size: 2.5rem;
    color: var(--red-primary);
    margin-bottom: 15px;
    opacity: 0.8;
}

.stat-card .value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 5px;
}

.stat-card .label {
    color: var(--text-secondary);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Alerts */
.alert {
    padding: 15px 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    border-left: 4px solid;
}

.alert-success {
    background: rgba(0, 255, 136, 0.1);
    border-color: var(--success);
    color: var(--success);
}

.alert-error {
    background: rgba(255, 56, 56, 0.1);
    border-color: var(--red-primary);
    color: var(--red-primary);
}

.alert-info {
    background: rgba(255, 170, 0, 0.1);
    border-color: var(--warning);
    color: var(--warning);
}

/* Table */
table {
    width: 100%;
    border-collapse: collapse;
    background: var(--dark-card);
    border-radius: 12px;
    overflow: hidden;
}

thead {
    background: var(--dark-hover);
}

th {
    padding: 15px;
    text-align: left;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    font-size: 0.875rem;
    letter-spacing: 0.5px;
}

td {
    padding: 15px;
    border-top: 1px solid var(--border-color);
    color: var(--text-primary);
}

tr:hover {
    background: var(--dark-hover);
}

/* Badge */
.badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.badge-success {
    background: rgba(0, 255, 136, 0.1);
    color: var(--success);
}

.badge-danger {
    background: rgba(255, 56, 56, 0.1);
    color: var(--red-primary);
}

.badge-warning {
    background: rgba(255, 170, 0, 0.1);
    color: var(--warning);
}

/* Footer */
footer {
    background: var(--dark-card);
    border-top: 1px solid var(--border-color);
    padding: 40px 0;
    margin-top: 80px;
    text-align: center;
}

footer p {
    color: var(--text-muted);
}

/* Social Icons */
.social-icons {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin: 20px 0;
}

.social-icon {
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--dark-hover);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    color: var(--text-secondary);
    font-size: 1.25rem;
    transition: all 0.3s;
    text-decoration: none;
}

.social-icon:hover {
    background: var(--red-primary);
    border-color: var(--red-primary);
    color: white;
    transform: translateY(-3px);
}

/* Platform Selector - Enhanced with Icons */
.platform-selector {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 15px;
    margin: 25px 0;
}

.platform-option {
    background: var(--dark-hover);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px 15px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.platform-option::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 56, 56, 0.1) 0%, transparent 70%);
    transform: scale(0);
    transition: transform 0.6s ease;
}

.platform-option:hover::before {
    transform: scale(1);
}

.platform-option:hover {
    border-color: var(--red-primary);
    background: var(--dark-card);
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.platform-option.selected {
    border-color: var(--red-primary);
    background: rgba(255, 56, 56, 0.15);
    box-shadow: 0 0 20px rgba(255, 56, 56, 0.3);
}

.platform-option.selected::after {
    content: '\f058'; /* Font Awesome check-circle */
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    top: 8px;
    right: 8px;
    color: var(--success);
    font-size: 1.2rem;
}

.platform-option i {
    font-size: 3rem;
    margin-bottom: 12px;
    display: block;
    transition: transform 0.3s ease;
}

.platform-option:hover i {
    transform: scale(1.15);
}

.platform-option span {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.platform-option.selected span {
    color: var(--text-primary);
}

/* Platform Colors */
.platform-option[data-platform="YouTube"] i { color: #FF0000; }
.platform-option[data-platform="Instagram"] i { 
    background: linear-gradient(45deg, #f09433 0%, #e6683c 25%, #dc2743 50%, #cc2366 75%, #bc1888 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.platform-option[data-platform="Facebook"] i { color: #1877F2; }
.platform-option[data-platform="Twitter"] i { color: #1DA1F2; }
.platform-option[data-platform="TikTok"] i { color: #000000; }
.platform-option[data-platform="LinkedIn"] i { color: #0A66C2; }
.platform-option[data-platform="Telegram"] i { color: #0088cc; }
.platform-option[data-platform="Discord"] i { color: #5865F2; }
.platform-option[data-platform="Twitch"] i { color: #9146FF; }
.platform-option[data-platform="Reddit"] i { color: #FF4500; }

/* Blog */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
    margin: 40px 0;
}

.blog-card {
    background: var(--dark-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s;
    text-decoration: none;
    color: inherit;
}

.blog-card:hover {
    transform: translateY(-5px);
    border-color: var(--red-primary);
    box-shadow: 0 10px 40px rgba(255, 56, 56, 0.1);
}

.blog-image {
    width: 100%;
    height: 200px;
    background: var(--dark-hover);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: var(--red-primary);
    opacity: 1;
}

.blog-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.blog-content {
    padding: 25px;
}

.blog-meta {
    display: flex;
    gap: 15px;
    margin-bottom: 15px;
    font-size: 0.875rem;
    color: var(--text-muted);
}

.blog-title {
    font-size: 1.25rem;
    margin-bottom: 10px;
    color: var(--text-primary);
}

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

/* Responsive */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    
    nav {
        gap: 15px;
    }
    
    .grid,
    .grid-2,
    .blog-grid {
        grid-template-columns: 1fr;
    }
    
    .platform-selector {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Loading Animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid var(--dark-hover);
    border-radius: 50%;
    border-top-color: var(--red-primary);
    animation: spin 1s linear infinite;
}

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

/* Fade In Animation */
.fade-in {
    animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Ad Integration */
.ad-container {
    background: var(--dark-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px;
    margin: 30px 0;
    text-align: center;
    min-height: 250px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.ad-container::before {
    content: 'Advertisement';
    position: absolute;
    top: 10px;
    left: 10px;
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.ad-placeholder {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Sticky Ad Sidebar */
.ad-sidebar {
    position: sticky;
    top: 100px;
    background: var(--dark-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Enhanced Responsive Design */
@media (max-width: 1200px) {
    .container {
        max-width: 100%;
        padding: 0 30px;
    }
    
    .grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }
}

@media (max-width: 992px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .ad-sidebar {
        display: none;
    }
}

@media (max-width: 768px) {
    header {
        padding: 1rem 0;
    }
    
    nav {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 280px;
        height: calc(100vh - 70px);
        background: rgba(26, 26, 26, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        align-items: flex-start;
        padding: 30px;
        gap: 20px;
        transition: left 0.3s ease;
        box-shadow: var(--shadow-xl);
        border-right: 1px solid var(--border-color);
        z-index: 999;
    }
    
    nav.active {
        left: 0;
    }
    
    nav a {
        width: 100%;
        padding: 12px 20px;
        border-radius: var(--radius-md);
    }
    
    nav a.active::after {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .hero h1 {
        font-size: 2rem;
        line-height: 1.2;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .grid,
    .grid-2,
    .blog-grid {
        grid-template-columns: 1fr;
    }
    
    .platform-selector {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .lock-generator {
        padding: 25px 20px;
    }
    
    .form-group input,
    .form-group select,
    .form-group textarea {
        font-size: 16px; /* Prevents zoom on iOS */
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .ad-container {
        min-height: 200px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero {
        padding: 50px 0;
    }
    
    .hero h1 {
        font-size: 1.75rem;
    }
    
    .logo {
        font-size: 1.25rem;
    }
    
    .logo i {
        font-size: 1.5rem;
    }
    
    .stat-card .value {
        font-size: 2rem;
    }
    
    .platform-option {
        padding: 15px 10px;
    }
    
    .platform-option i {
        font-size: 2.5rem;
    }
}

/* Accessibility Improvements */
*:focus {
    outline: 2px solid var(--red-primary);
    outline-offset: 2px;
}

button:focus,
a:focus {
    outline: 2px solid var(--red-primary);
}

/* Smooth Scrollbar */
::-webkit-scrollbar {
    width: 12px;
}

::-webkit-scrollbar-track {
    background: var(--dark-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--dark-hover);
    border-radius: 6px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--red-primary);
}

/* Selection */
::selection {
    background: var(--red-primary);
    color: white;
}

/* Tooltips */
[data-tooltip] {
    position: relative;
}

[data-tooltip]::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(-8px);
    background: var(--dark-card);
    color: var(--text-primary);
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s, transform 0.3s;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
}

[data-tooltip]:hover::after {
    opacity: 1;
    transform: translateX(-50%) translateY(-12px);
}

/* Platform Selector Grid in Form */
.platform-selector-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 10px;
    margin: 10px 0;
}

.platform-card {
    background: var(--dark-hover);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 15px 10px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.platform-card:hover {
    border-color: var(--red-primary);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.platform-card.selected {
    border-color: var(--red-primary);
    background: rgba(255, 56, 56, 0.1);
    box-shadow: 0 0 15px rgba(255, 56, 56, 0.3);
}

.platform-card i {
    font-size: 2rem;
    display: block;
    margin-bottom: 8px;
}

.platform-card span {
    font-size: 0.75rem;
    display: block;
    color: var(--text-secondary);
    font-weight: 600;
}

.platform-card.selected span {
    color: var(--text-primary);
}

/* Lock Generator Enhanced */
.lock-generator {
    background: var(--dark-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 45px;
    max-width: 900px;
    margin: 40px auto;
    box-shadow: var(--shadow-xl);
    position: relative;
}

.lock-generator::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}