@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');
@import url('https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/css/all.min.css');

:root {
    /* Light theme */
    --bg-primary: #F5F5F5;
    --bg-secondary: #ffffff;
    --bg-tertiary: #fafafa;
    --text-primary: #1a1a1a;
    --text-secondary: #666666;
    --text-tertiary: #999999;
    --border-color: #e5e5e5;
    --btn-gradient: linear-gradient(135deg, #0AB1FF 0%, #005ED0 100%);
    --btn-hover: linear-gradient(135deg, #009FE8 0%, #0052C0 100%);
    --border-radius-sm: 8px;
    --border-radius-md: 12px;
    --border-radius-lg: 16px;
    --transition: all 0.15s ease;
}

[data-theme="dark"] {
    --bg-primary: #121212;
    --bg-secondary: #1e1e1e;
    --bg-tertiary: #2a2a2a;
    --text-primary: #ffffff;
    --text-secondary: #cccccc;
    --text-tertiary: #888888;
    --border-color: #333333;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
    font-size: 14px;
    -webkit-font-smoothing: antialiased;
    touch-action: manipulation;
    user-select: none;
    overflow-x: hidden;
}

/* Allow text selection for specific elements */
input, textarea, .selectable, p, .card-text, .description, .post-content {
    user-select: text;
    -webkit-user-select: text;
}

/* Remove default browser styles */
input, button, select, textarea {
    border: none;
    outline: none;
    font-family: inherit;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 16px;
}

/* Header - Clean iOS style */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 0.5px solid var(--border-color);
}

[data-theme="dark"] .header {
    background: rgba(18, 18, 18, 0.85);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 0;
    min-height: 56px;
}

.logo {
    font-size: 17px;
    font-weight: 600;
    color: var(--text-primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo-icon {
    width: 24px;
    height: 24px;
    background: var(--btn-gradient);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 12px;
}

/* Navigation */
.nav {
    display: flex;
    align-items: center;
    gap: 20px;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 14px;
    transition: var(--transition);
    padding: 8px 0;
}

.nav-link:hover, .nav-link.active {
    color: var(--text-primary);
}

/* Support button - Extended */
.telegram-support {
    background: var(--btn-gradient);
    border: none;
    height: 32px;
    padding: 0 16px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    cursor: pointer;
    transition: var(--transition);
    color: white;
    font-size: 13px;
    font-weight: 500;
    text-decoration: none;
}

.telegram-support:hover {
    background: var(--btn-hover);
    transform: translateY(-1px);
}

/* Theme toggle - New icon */
.theme-toggle {
    background: var(--bg-tertiary);
    border: none;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    font-size: 14px;
    color: var(--text-secondary);
}

.theme-toggle:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

/* Mobile controls */
.mobile-controls {
    display: none;
    align-items: center;
    gap: 12px;
}

.mobile-menu-toggle {
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 18px;
    cursor: pointer;
    padding: 8px;
    border-radius: 6px;
    transition: var(--transition);
}

.mobile-menu-toggle:hover {
    background: var(--bg-tertiary);
}

.mobile-menu {
    position: fixed;
    top: 0;
    left: -100%;
    width: 280px;
    height: 100vh;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 1000;
    transition: left 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    padding: 80px 0 20px;
    overflow-y: auto;
}

[data-theme="dark"] .mobile-menu {
    background: rgba(30, 30, 30, 0.85);
}

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

.mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.3);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.mobile-menu-overlay.active {
    opacity: 1;
    visibility: visible;
}

.mobile-menu .nav-link {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 24px;
    border-bottom: 0.5px solid var(--border-color);
    font-size: 15px;
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition);
}

.mobile-menu .nav-link:hover {
    background: var(--bg-tertiary);
}

.mobile-menu .nav-link i {
    color: var(--text-tertiary);
    font-size: 16px;
    width: 20px;
    text-align: center;
}

/* Buttons - Clean style */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    border-radius: var(--border-radius-md);
    font-weight: 500;
    font-size: 14px;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    outline: none;
    min-height: 44px;
    white-space: nowrap;
}

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

.btn-primary:hover {
    background: var(--btn-hover);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 0.5px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--bg-tertiary);
}

.btn-large {
    padding: 16px 32px;
    font-size: 16px;
    min-height: 52px;
}

.btn-small {
    padding: 8px 16px;
    font-size: 13px;
    min-height: 36px;
}

/* Cards - Clean no border */
.card {
    background: var(--bg-secondary);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-2px);
    border-color: rgba(10, 177, 255, 0.3);
}

.card-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: var(--border-radius-md) var(--border-radius-md) 0 0;
}

.card-video {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: var(--border-radius-md) var(--border-radius-md) 0 0;
    background: var(--bg-tertiary);
    transition: opacity 0.3s ease;
    preload: metadata;
}

.card-video:hover {
    opacity: 0.9;
}

.card-content {
    padding: 16px;
}

.card-title {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
    line-height: 1.3;
}

.card-text {
    color: var(--text-secondary);
    margin-bottom: 12px;
    font-size: 13px;
    line-height: 1.4;
}

/* Forms - Clean */
.form-input {
    width: 100%;
    padding: 14px 16px;
    border: 0.5px solid var(--border-color);
    border-radius: var(--border-radius-md);
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 14px;
    transition: var(--transition);
    min-height: 48px;
}

.form-input:focus {
    border-color: #0AB1FF;
}

.input-group {
    margin-bottom: 20px;
}

.input-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-primary);
    font-size: 13px;
}

/* Price styling */
.price {
    font-size: 18px;
    font-weight: 700;
    background: var(--btn-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Status badges */
.status-badge {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.status-available {
    background: rgba(34, 197, 94, 0.1);
    color: #16a34a;
}

.status-pending {
    background: rgba(251, 191, 36, 0.1);
    color: #d97706;
}

.status-sold {
    background: rgba(239, 68, 68, 0.1);
    color: #dc2626;
}

/* Grid system */
.grid {
    display: grid;
    gap: 16px;
}

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

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

/* Hero section */
.hero {
    text-align: center;
    padding: 40px 0 20px;
    background: var(--bg-primary);
}

.hero-title {
    font-size: 36px;
    font-weight: 800;
    margin-bottom: 12px;
    background: var(--btn-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
    animation: colorChange 8s infinite;
}

@keyframes colorChange {
    0% { background: linear-gradient(135deg, #0AB1FF 0%, #005ED0 100%); -webkit-background-clip: text; }
    25% { background: linear-gradient(135deg, #C280FF 0%, #7A3FF0 100%); -webkit-background-clip: text; }
    50% { background: linear-gradient(135deg, #A1F75C 0%, #32C95A 100%); -webkit-background-clip: text; }
    75% { background: linear-gradient(135deg, #FFD670 0%, #FF8800 100%); -webkit-background-clip: text; }
    100% { background: linear-gradient(135deg, #0AB1FF 0%, #005ED0 100%); -webkit-background-clip: text; }
}

.hero-subtitle {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 32px;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.4;
}

/* Section styling */
.section {
    padding: 32px 0;
}

.section-title {
    font-size: 24px;
    font-weight: 600;
    text-align: center;
    margin-bottom: 32px;
    color: var(--text-primary);
}

/* FAQ - Smooth animations */
.faq-item {
    background: var(--bg-secondary);
    border-radius: var(--border-radius-md);
    margin-bottom: 8px;
    overflow: hidden;
    border: 0.5px solid var(--border-color);
    transition: var(--transition);
}

.faq-question {
    width: 100%;
    background: none;
    border: none;
    text-align: left;
    padding: 16px 20px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.faq-question:hover {
    background: var(--bg-tertiary);
}

.faq-question i {
    transition: transform 0.2s ease;
}

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

.faq-answer {
    padding: 0 20px;
    color: var(--text-secondary);
    font-size: 13px;
    line-height: 1.5;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 200px;
    padding: 0 20px 16px;
}

/* Image slider - No frame */
.image-slider {
    position: relative;
    max-width: 1100px;
    margin: 0 auto 40px;
    overflow: visible;
}

.slider-container {
    position: relative;
    width: 100%;
    height: 400px;
    overflow: hidden;
    border-radius: var(--border-radius-lg);
    cursor: grab;
}

.slider-container:active {
    cursor: grabbing;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: all 0.6s cubic-bezier(0.25, 0.8, 0.25, 1);
    transform: translateX(20px);
}

.slide.active {
    opacity: 1;
    transform: translateX(0);
}

.slide img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: var(--bg-tertiary);
    border-radius: var(--border-radius-lg);
}

.slider-arrows {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0,0,0,0.5);
    color: white;
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 16px;
    transition: var(--transition);
}

.slider-arrows:hover {
    background: rgba(0,0,0,0.7);
}

.slider-prev { left: 16px; }
.slider-next { right: 16px; }

.slider-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    padding: 16px;
    background: var(--bg-secondary);
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #666;
    cursor: pointer;
    transition: var(--transition);
}

[data-theme="dark"] .dot {
    background: #ccc;
}

.dot.active {
    background: #000;
    transform: scale(1.3);
}

[data-theme="dark"] .dot.active {
    background: #fff;
}

/* Features section - 4 items */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 24px;
    margin: 40px 0;
}

.feature-item {
    text-align: center;
    padding: 24px 16px;
    background: var(--bg-secondary);
    border-radius: var(--border-radius-lg);
    transition: var(--transition);
}

.feature-item:hover {
    transform: translateY(-1px);
}

.feature-icon {
    width: 36px;
    height: 36px;
    background: var(--btn-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    color: white;
    font-size: 16px;
    pointer-events: none;
}

[data-theme="dark"] .feature-icon {
    color: white;
}

.feature-title {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.feature-text {
    color: var(--text-secondary);
    font-size: 13px;
    line-height: 1.4;
}

/* Footer - Ultra modern */
.footer {
    background: var(--bg-secondary);
    padding: 50px 0 30px;
    margin-top: 80px;
    border-radius: 24px 24px 0 0;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.footer-section p,
.footer-section a {
    color: var(--text-secondary);
    font-size: 13px;
    text-decoration: none;
    line-height: 1.5;
    margin-bottom: 8px;
    display: block;
}

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

.footer-bottom {
    border-top: 0.5px solid var(--border-color);
    padding-top: 20px;
    text-align: center;
    color: var(--text-tertiary);
    font-size: 12px;
}

/* Responsive */
@media (max-width: 768px) {
    .nav {
        display: none;
    }
    
    .mobile-controls {
        display: flex;
    }
    
    .header-content {
        padding: 10px 0;
    }
    
    .hero-title {
        font-size: 30px;
    }
    
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
        text-align: center;
    }
    
    .footer-section {
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    
    .container {
        padding: 0 12px;
    }
    
    .section {
        padding: 24px 0;
    }
    
    .section-title {
        font-size: 22px;
    }
    
    .slider-container {
        height: 280px;
    }
    
    .slider-arrows {
        display: none;
    }
}

/* Modern Checkboxes */
.checkbox-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--bg-tertiary);
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: var(--transition);
    user-select: none;
}

.checkbox-item:hover {
    background: var(--bg-secondary);
    transform: translateY(-1px);
}

.checkbox-item input[type="checkbox"] {
    display: none;
}

.checkbox-custom {
    width: 18px;
    height: 18px;
    border-radius: 4px;
    background: var(--bg-secondary);
    border: 1.5px solid var(--border-color);
    position: relative;
    transition: var(--transition);
}

.checkbox-item input:checked + .checkbox-custom {
    background: var(--btn-gradient);
    border-color: transparent;
}

.checkbox-item input:checked + .checkbox-custom::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 12px;
    font-weight: bold;
}

.checkbox-content {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
}

.checkbox-content i {
    font-size: 16px;
}

/* Loading and animations */
.fade-in {
    animation: fadeIn 0.4s ease;
}

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

/* Smooth scrolling enhancement */
html {
    scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}