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

:root {
    --color-bg: #0a0a0a;
    --color-surface: #1a1a1a;
    --color-surface-light: #2a2a2a;
    --color-surface-lighter: #3a3a3a;
    --color-text: #f0f0f0;
    --color-text-secondary: #b0b0b0;
    --color-text-muted: #888;
    --color-accent: #e60000;
    --color-accent-hover: #ff3333;
    --color-accent-light: rgba(230, 0, 0, 0.1);
    --color-border: #333;
    --color-border-light: #444;
    --color-success: #00cc66;
    --color-warning: #ff9900;
    --color-danger: #ff3333;
    
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    --font-family-mono: 'SF Mono', Monaco, 'Cascadia Code', monospace;
    
    --border-radius-sm: 4px;
    --border-radius: 8px;
    --border-radius-lg: 12px;
    --border-radius-xl: 16px;
    
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-xxl: 48px;
    --spacing-xxxl: 64px;
    
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    
    --transition: all 0.3s ease;
    --transition-fast: all 0.15s ease;
    
    --container-max: 1200px;
    --header-height: 80px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    overflow-x: hidden;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
}

.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
}

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: 3rem;
    letter-spacing: -0.5px;
}

h2 {
    font-size: 2.25rem;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

@media (max-width: 992px) {
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    h3 { font-size: 1.375rem; }
}

@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.25rem; }
}

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

a {
    color: var(--color-text);
    text-decoration: none;
    transition: var(--transition-fast);
}

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

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: var(--color-accent);
    margin: var(--spacing-sm) auto;
    border-radius: 2px;
}

.section-subtitle {
    text-align: center;
    color: var(--color-text-secondary);
    font-size: 1.125rem;
    max-width: 800px;
    margin: 0 auto var(--spacing-xl);
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-xl);
    font-weight: 600;
    font-size: 1rem;
    border-radius: var(--border-radius);
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    white-space: nowrap;
}

.btn-small {
    padding: var(--spacing-xs) var(--spacing-lg);
    font-size: 0.875rem;
}

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

.btn-primary:hover {
    background-color: var(--color-accent-hover);
    border-color: var(--color-accent-hover);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-text);
    border-color: var(--color-border);
}

.btn-secondary:hover {
    background-color: var(--color-surface-light);
    border-color: var(--color-text);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.btn-outline {
    background-color: transparent;
    color: var(--color-accent);
    border-color: var(--color-accent);
}

.btn-outline:hover {
    background-color: var(--color-accent-light);
    border-color: var(--color-accent-hover);
    color: var(--color-accent-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

/* ============================================
   HEADER
   ============================================ */
.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 2px solid var(--color-accent);
    height: var(--header-height);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
    padding: var(--spacing-sm) 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 700;
    font-size: 1.5rem;
    color: white;
    text-decoration: none;
}

.logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: var(--color-accent);
    color: white;
    font-weight: 900;
    font-size: 1.5rem;
    border-radius: var(--border-radius-sm);
    transition: var(--transition);
}

.logo:hover .logo-icon {
    transform: rotate(15deg) scale(1.1);
}

.logo-text {
    font-size: 1.25rem;
}

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

.nav-list {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
}

.nav-link {
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    position: relative;
}

.nav-link:hover {
    color: var(--color-accent);
}

.nav-link.active {
    color: var(--color-accent);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    right: 0;
    height: 2px;
    background-color: var(--color-accent);
    border-radius: 1px;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 20px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
}

.mobile-menu-toggle span {
    display: block;
    height: 2px;
    width: 100%;
    background-color: var(--color-text);
    border-radius: 2px;
    transition: var(--transition);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    padding: var(--spacing-xxxl) 0;
    background: linear-gradient(135deg, rgba(230, 0, 0, 0.1) 0%, rgba(10, 10, 10, 1) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: radial-gradient(circle at top right, rgba(230, 0, 0, 0.05) 0%, transparent 70%);
    z-index: 0;
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: var(--spacing-md);
    position: relative;
    z-index: 1;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    max-width: 700px;
    margin-bottom: var(--spacing-xl);
    position: relative;
    z-index: 1;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    position: relative;
    z-index: 1;
}

@media (max-width: 768px) {
    .hero {
        padding: var(--spacing-xxl) 0;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.125rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: stretch;
    }
    
    .hero-buttons .btn {
        width: 100%;
    }
}

/* ============================================
   SECTIONS
   ============================================ */
.section {
    padding: var(--spacing-xxxl) 0;
}

.section:not(:last-child) {
    border-bottom: 1px solid var(--color-border);
}

/* ============================================
   CHARACTERISTICS
   ============================================ */
.characteristics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.characteristic-card {
    background-color: var(--color-surface);
    border-radius: var(--border-radius);
    padding: var(--spacing-xl);
    border: 1px solid var(--color-border);
    transition: var(--transition);
    text-align: center;
}

.characteristic-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-accent);
    box-shadow: var(--shadow);
}

.characteristic-title {
    color: var(--color-accent);
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.characteristic-text {
    color: var(--color-text-secondary);
    margin-bottom: 0;
}

/* ============================================
   WHY SECTION
   ============================================ */
.why-header {
    text-align: center;
    margin-bottom: var(--spacing-xxl);
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
}

.why-card {
    background-color: var(--color-surface);
    border-radius: var(--border-radius);
    padding: var(--spacing-xl);
    border: 1px solid var(--color-border);
    transition: var(--transition);
}

.why-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-accent);
    box-shadow: var(--shadow);
}

.why-card-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

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

.why-card-text {
    color: var(--color-text-secondary);
    margin-bottom: 0;
}

/* ============================================
   CATEGORIES
   ============================================ */
.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.category-card {
    background-color: var(--color-surface);
    border-radius: var(--border-radius);
    padding: var(--spacing-xl);
    border: 2px solid var(--color-border);
    text-align: center;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.category-card:hover {
    border-color: var(--color-accent);
    transform: translateY(-4px);
    box-shadow: var(--shadow);
}

.category-card-title {
    color: var(--color-accent);
    margin-bottom: var(--spacing-md);
}

.category-card-text {
    color: var(--color-text-secondary);
    flex-grow: 1;
    margin-bottom: var(--spacing-lg);
}

.category-card-price {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-accent);
    margin-bottom: var(--spacing-lg);
}

/* ============================================
   WORKFLOW
   ============================================ */
.workflow-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.workflow-step {
    text-align: center;
    padding: var(--spacing-lg);
}

.workflow-step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background-color: var(--color-accent);
    color: white;
    font-weight: 700;
    font-size: 1.5rem;
    border-radius: 50%;
    margin-bottom: var(--spacing-md);
}

.workflow-step-title {
    font-size: 1.125rem;
}

/* ============================================
   LEARNING
   ============================================ */
.learning-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--spacing-xl);
}

.learning-text {
    max-width: 800px;
}

/* ============================================
   CATALOG SPECIFIC
   ============================================ */
.catalog-header {
    padding: var(--spacing-xxl) 0 var(--spacing-xl);
    background-color: var(--color-surface);
    border-bottom: 2px solid var(--color-border);
}

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

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

.catalog-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.catalog-filters {
    background-color: var(--color-surface);
    border-radius: var(--border-radius);
    padding: var(--spacing-xl);
    border: 1px solid var(--color-border);
    height: fit-content;
    position: sticky;
    top: calc(var(--header-height) + var(--spacing-xl));
}

.filter-group {
    margin-bottom: var(--spacing-xl);
}

.filter-group:last-child {
    margin-bottom: 0;
}

.filter-group-title {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
    border-bottom: 1px solid var(--color-border-light);
    padding-bottom: var(--spacing-sm);
}

.filter-options {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.filter-option {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    padding: var(--spacing-xs) 0;
    transition: var(--transition-fast);
    color: var(--color-text-secondary);
}

.filter-option:hover {
    color: var(--color-text);
}

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

.filter-checkbox {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    border: 2px solid var(--color-border-light);
    border-radius: var(--border-radius-sm);
    background-color: transparent;
    transition: var(--transition-fast);
    position: relative;
}

.filter-checkbox::after {
    content: '';
    position: absolute;
    width: 10px;
    height: 10px;
    background-color: var(--color-accent);
    border-radius: 2px;
    opacity: 0;
    transform: scale(0);
    transition: var(--transition-fast);
}

.filter-option input[type="checkbox"]:checked + .filter-checkbox {
    border-color: var(--color-accent);
    background-color: var(--color-accent-light);
}

.filter-option input[type="checkbox"]:checked + .filter-checkbox::after {
    opacity: 1;
    transform: scale(1);
}

.year-range {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.year-range-display {
    text-align: center;
    font-weight: 600;
    color: var(--color-accent);
    font-size: 1.125rem;
}

.year-slider {
    position: relative;
    height: 20px;
}

.year-slider input[type="range"] {
    position: absolute;
    width: 100%;
    height: 4px;
    background: var(--color-border-light);
    border-radius: 2px;
    outline: none;
    -webkit-appearance: none;
}

.year-slider input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    background: var(--color-accent);
    border-radius: 50%;
    cursor: pointer;
    border: 3px solid var(--color-bg);
}

.year-range-inputs {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.year-range-inputs input {
    flex: 1;
    padding: var(--spacing-sm);
    background-color: var(--color-surface-light);
    border: 1px solid var(--color-border-light);
    border-radius: var(--border-radius-sm);
    color: var(--color-text);
    text-align: center;
}

.year-range-inputs span {
    color: var(--color-text-secondary);
}

.filter-reset {
    width: 100%;
    margin-top: var(--spacing-xl);
}

.catalog-channels {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    align-content: start;
}

.channel-card {
    background-color: var(--color-surface);
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
    overflow: hidden;
    transition: var(--transition);
}

.channel-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-accent);
    box-shadow: var(--shadow);
}

.channel-badge {
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    background-color: var(--color-accent);
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    font-weight: 600;
    font-size: 0.875rem;
    z-index: 1;
}

.channel-screenshot {
    position: relative;
    height: 180px;
    background-color: var(--color-surface-light);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-secondary);
    font-style: italic;
    overflow: hidden;
}

.channel-content {
    padding: var(--spacing-lg);
}

.channel-title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
}

.channel-description {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.channel-description::before {
    content: '•';
    color: var(--color-accent);
}

.channel-details {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.detail-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.detail-label {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.detail-value {
    font-weight: 600;
    color: var(--color-text);
}

.channel-price {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.price-main {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-accent);
    line-height: 1;
    margin-bottom: var(--spacing-xs);
}

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

.channel-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-sm);
}

.loading {
    grid-column: 1 / -1;
    text-align: center;
    padding: var(--spacing-xxl);
    color: var(--color-text-secondary);
    font-style: italic;
}

.no-results {
    grid-column: 1 / -1;
    text-align: center;
    padding: var(--spacing-xxl);
    color: var(--color-text-secondary);
}

.no-results-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

.selection-tips {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.selection-tip {
    background-color: var(--color-surface);
    border-radius: var(--border-radius);
    padding: var(--spacing-xl);
    border: 1px solid var(--color-border);
}

.tip-title {
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
}

.tip-text {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
}

.tip-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--color-accent);
    font-weight: 600;
}

.tip-link:hover {
    color: var(--color-accent-hover);
}

/* ============================================
   CONTACTS SPECIFIC
   ============================================ */
.contacts-header {
    padding: var(--spacing-xxxl) 0 var(--spacing-xl);
    text-align: center;
}

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

.contacts-subtitle {
    color: var(--color-text-secondary);
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto;
}

.contacts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.contact-card {
    background-color: var(--color-surface);
    border-radius: var(--border-radius);
    padding: var(--spacing-xl);
    border: 1px solid var(--color-border);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    transition: var(--transition);
}

.contact-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-accent);
    box-shadow: var(--shadow);
}

.contact-card-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

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

.contact-card-text {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
    flex-grow: 1;
}

.contact-email {
    font-family: var(--font-family-mono);
    background-color: var(--color-surface-light);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-sm);
    color: var(--color-accent);
    font-weight: 600;
    margin-top: var(--spacing-md);
}

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

.feature-item {
    text-align: center;
    padding: var(--spacing-lg);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

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

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

.hours-card {
    background-color: var(--color-surface);
    border-radius: var(--border-radius);
    padding: var(--spacing-xl);
    border: 1px solid var(--color-border);
    max-width: 600px;
    margin: 0 auto;
}

.hours-title {
    color: var(--color-accent);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.hours-list {
    list-style: none;
    margin-bottom: var(--spacing-lg);
}

.hours-list li {
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--color-border-light);
}

.hours-list li:last-child {
    border-bottom: none;
}

.hours-list strong {
    color: var(--color-text);
    display: inline-block;
    min-width: 180px;
}

.hours-note {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    font-style: italic;
}

.faq-list {
    max-width: 800px;
    margin: var(--spacing-xl) auto 0;
}

.faq-item {
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border-light);
}

.faq-item:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.faq-question {
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.faq-question::after {
    content: '▼';
    font-size: 0.75rem;
    transition: var(--transition-fast);
}

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

.faq-answer {
    color: var(--color-text-secondary);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-answer.open {
    max-height: 1000px;
}

/* ============================================
   FAQ SPECIFIC
   ============================================ */
.faq-header {
    padding: var(--spacing-xxxl) 0 var(--spacing-xl);
    text-align: center;
}

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

.faq-subtitle {
    color: var(--color-text-secondary);
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto;
}

.important-card {
    background-color: rgba(230, 0, 0, 0.05);
    border: 2px solid var(--color-accent);
    border-radius: var(--border-radius);
    padding: var(--spacing-xl);
    margin: var(--spacing-xl) 0;
}

.important-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.important-icon {
    font-size: 2rem;
}

.important-title {
    color: var(--color-accent);
    margin-bottom: 0;
}

.important-subtitle {
    color: var(--color-text);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
}

.important-list {
    list-style: none;
    margin-left: var(--spacing-md);
}

.important-list li {
    position: relative;
    padding-left: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.important-list li::before {
    content: '⚠️';
    position: absolute;
    left: 0;
    top: 0;
}

.terms-content {
    background-color: var(--color-surface);
    border-radius: var(--border-radius);
    padding: var(--spacing-xl);
    border: 1px solid var(--color-border);
    margin: var(--spacing-xl) 0;
    max-height: 600px;
    overflow-y: auto;
}

.terms-content h3 {
    color: var(--color-accent);
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
}

.terms-content h3:first-child {
    margin-top: 0;
}

.terms-content p, .terms-content ul {
    margin-bottom: var(--spacing-md);
    color: var(--color-text-secondary);
}

.terms-content ul {
    margin-left: var(--spacing-xl);
}

.terms-content li {
    margin-bottom: var(--spacing-xs);
}

.terms-subtitle {
    text-align: center;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
}

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

/* ============================================
   LEARN SPECIFIC
   ============================================ */
.learn-header {
    padding: var(--spacing-xxxl) 0 var(--spacing-xl);
    text-align: center;
}

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

.learn-subtitle {
    color: var(--color-text-secondary);
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto;
}

.steps-timeline {
    max-width: 800px;
    margin: var(--spacing-xl) auto 0;
    position: relative;
}

.steps-timeline::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 2px;
    background-color: var(--color-border);
}

.step {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xxl);
    position: relative;
}

.step:last-child {
    margin-bottom: 0;
}

.step-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background-color: var(--color-accent);
    color: white;
    font-weight: 700;
    font-size: 1.5rem;
    border-radius: 50%;
    flex-shrink: 0;
    position: relative;
    z-index: 1;
    border: 4px solid var(--color-bg);
}

.step-content {
    flex: 1;
    padding-top: var(--spacing-sm);
}

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

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

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.tool-card {
    background-color: var(--color-surface);
    border-radius: var(--border-radius);
    padding: var(--spacing-xl);
    border: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    transition: var(--transition);
}

.tool-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-accent);
    box-shadow: var(--shadow);
}

.tool-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-md);
}

.tool-card-title {
    margin-bottom: 0;
}

.tool-card-icon {
    font-size: 2.5rem;
}

.tool-card-description {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
    flex-grow: 1;
}

.tool-card-features {
    list-style: none;
    margin-bottom: var(--spacing-xl);
}

.tool-card-features li {
    position: relative;
    padding-left: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.tool-card-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-weight: bold;
}

.guides-list {
    max-width: 800px;
    margin: var(--spacing-xl) auto 0;
}

.guide-item {
    background-color: var(--color-surface);
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
    margin-bottom: var(--spacing-md);
    overflow: hidden;
    transition: var(--transition);
}

.guide-item:last-child {
    margin-bottom: 0;
}

.guide-item.active {
    border-color: var(--color-accent);
    box-shadow: var(--shadow);
}

.guide-header {
    display: flex;
    align-items: center;
    padding: var(--spacing-lg);
    cursor: pointer;
    gap: var(--spacing-md);
}

.guide-icon {
    font-size: 1.5rem;
}

.guide-title {
    flex: 1;
    margin-bottom: 0;
}

.guide-toggle {
    background: transparent;
    border: none;
    color: var(--color-text);
    cursor: pointer;
    padding: var(--spacing-xs);
    transition: var(--transition-fast);
}

.guide-toggle:hover {
    color: var(--color-accent);
}

.toggle-icon {
    display: inline-block;
    transition: var(--transition-fast);
}

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

.guide-content {
    padding: 0 var(--spacing-lg);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.guide-item.active .guide-content {
    padding-bottom: var(--spacing-lg);
    max-height: 6000px;
}

.guide-description {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
}

.guide-tags {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.tag {
    background-color: var(--color-surface-light);
    color: var(--color-text-secondary);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
}

.guide-continue {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--color-accent);
    font-weight: 600;
}

.guide-continue:hover {
    color: var(--color-accent-hover);
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.faq-card {
    background-color: var(--color-surface);
    border-radius: var(--border-radius);
    padding: var(--spacing-xl);
    border: 1px solid var(--color-border);
    transition: var(--transition);
}

.faq-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-accent);
    box-shadow: var(--shadow);
}

.faq-card-title {
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
}

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

.cta-card {
    background: linear-gradient(135deg, rgba(230, 0, 0, 0.1) 0%, var(--color-surface) 100%);
    border-radius: var(--border-radius);
    padding: var(--spacing-xxl);
    text-align: center;
    border: 2px solid var(--color-accent);
}

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

.cta-text {
    color: var(--color-text-secondary);
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto var(--spacing-xl);
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
}

@media (max-width: 768px) {
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-buttons .btn {
        min-width: 250px;
    }
}

/* ============================================
   ROYAL PARTNERS BANNER
   ============================================ */
.royal-partners-banner {
    background: linear-gradient(135deg, rgba(230, 0, 0, 0.05) 0%, rgba(10, 10, 10, 1) 100%);
    border-radius: var(--border-radius);
    padding: var(--spacing-xl);
    text-align: center;
    border: 2px solid var(--color-accent);
}

.royal-partners-title {
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
}

.royal-partners-text {
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto var(--spacing-lg);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background-color: var(--color-surface);
    border-top: 2px solid var(--color-border);
    padding: var(--spacing-xl) 0;
    margin-top: auto;
}

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

.footer-content p {
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-secondary);
    font-size: 0.875rem;
}

.footer-content p:last-child {
    margin-bottom: 0;
}

.footer-partner {
    color: var(--color-text) !important;
    margin-top: var(--spacing-md) !important;
}

.footer-partner a {
    color: var(--color-accent);
    font-weight: 600;
}

.footer-partner a:hover {
    color: var(--color-accent-hover);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1200px) {
    .catalog-layout {
        grid-template-columns: 250px 1fr;
    }
}

@media (max-width: 992px) {
    .catalog-layout {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .catalog-filters {
        position: static;
        top: auto;
    }
    
    .nav-list {
        gap: var(--spacing-md);
    }
    
    .hero-title {
        font-size: 2.75rem;
    }
}

@media (max-width: 768px) {
    .header-inner {
        padding: var(--spacing-sm) 0;
    }
    
    .nav {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        background-color: var(--color-bg);
        padding: var(--spacing-lg);
        border-bottom: 2px solid var(--color-border);
        flex-direction: column;
        align-items: stretch;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
        z-index: 999;
    }
    
    .nav.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-list {
        flex-direction: column;
        gap: var(--spacing-sm);
        margin-bottom: var(--spacing-lg);
    }
    
    .nav-link {
        display: block;
        padding: var(--spacing-sm) var(--spacing-md);
        border-radius: var(--border-radius);
        background-color: var(--color-surface);
    }
    
    .nav-link.active {
        background-color: var(--color-accent-light);
        border-color: var(--color-accent);
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .mobile-menu-toggle.active span:nth-child(1) {
        transform: translateY(9px) rotate(45deg);
    }
    
    .mobile-menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-menu-toggle.active span:nth-child(3) {
        transform: translateY(-9px) rotate(-45deg);
    }
    
    .hero-title {
        font-size: 2.25rem;
    }
    
    .section {
        padding: var(--spacing-xxl) 0;
    }
    
    .characteristics-grid,
    .why-grid,
    .categories-grid,
    .workflow-steps,
    .contacts-grid,
    .features-grid,
    .tools-grid,
    .faq-grid,
    .selection-tips {
        grid-template-columns: 1fr;
    }
    
    .catalog-channels {
        grid-template-columns: 1fr;
    }
    
    .channel-actions {
        grid-template-columns: 1fr;
    }
    
    .steps-timeline::before {
        left: 25px;
    }
    
    .step-number {
        width: 50px;
        height: 50px;
        font-size: 1.25rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.75rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    h3 {
        font-size: 1.25rem;
    }
    
    .btn {
        padding: var(--spacing-sm) var(--spacing-lg);
        width: 100%;
    }
    
    .hero-buttons {
        gap: var(--spacing-sm);
    }
    
    .cta-card {
        padding: var(--spacing-xl);
    }
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.text-center {
    text-align: center;
}

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

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mt-4 { margin-top: var(--spacing-xl); }
.mt-5 { margin-top: var(--spacing-xxl); }

.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }
.mb-5 { margin-bottom: var(--spacing-xxl); }

.hidden {
    display: none !important;
}

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

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

/* ============================================
   SCROLLBAR
   ============================================ */
::-webkit-scrollbar {
    width: 10px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--color-surface-light);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-surface-lighter);
}

.terms-content::-webkit-scrollbar {
    width: 8px;
}

.terms-content::-webkit-scrollbar-track {
    background: var(--color-surface);
}

.terms-content::-webkit-scrollbar-thumb {
    background: var(--color-surface-lighter);
}
/* ==================== SEO СТИЛИ ==================== */
.seo-text {
    display: none;
}

@media print {
    .seo-text {
        display: block;
        font-size: 12pt;
        opacity: 1;
    }
}
/* Контакты и ссылки в большом мануале */
.manual-contacts {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.manual-contact-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.manual-contact-row:last-child {
    border-bottom: none;
}

.manual-contact-text {
    font-size: 0.95rem;
    line-height: 1.4;
}

.manual-contact-text b {
    font-size: 1rem;
}

/* “Пилюльные” ссылки-кнопки */
.manual-pill-link {
    display: inline-block;
    padding: 8px 16px;
    border-radius: 999px;
    border: 1px solid var(--color-accent);
    font-size: 0.95rem;
    font-weight: 600;
    text-decoration: none;
    white-space: nowrap;
    background: transparent;
    transition: all 0.2s ease;
    color: var(--color-text);
}

.manual-pill-link:hover {
    background: var(--color-accent);
    color: #fff;
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

/* ==================== Большой мануал на странице Обучение ==================== */

/* Базовые настройки контента в большом мануале */
.guide-item-full .guide-content {
    font-size: 0.95rem;
    line-height: 1.55;
}

/* Паддинги только когда мануал открыт */
.guide-item-full.active .guide-content {
    padding-top: var(--spacing-md);
    padding-bottom: var(--spacing-md);
}

/* Большие разделы: 1. Общая логика, 2. Опасная зона, 3. Идеальный прогрев и т.д. */
.guide-item-full .guide-content h4 {
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-xs);
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    font-size: 1.1rem;
    font-weight: 700;
}

.guide-item-full .guide-content h4:first-of-type {
    margin-top: 0;
    padding-top: 0;
    border-top: none;
}

/* Подзаголовки внутри раздела: "День 1", "Почему VPN...", "Что использовать" */
.guide-item-full .guide-content h5 {
    margin-top: var(--spacing-md);
    margin-bottom: 4px;
    font-size: 0.98rem;
    font-weight: 600;
    color: var(--color-text);
}

/* Параграфы и списки — более аккуратные отступы */
.guide-item-full .guide-content p {
    margin: 0 0 6px;
}

.guide-item-full .guide-content ul,
.guide-item-full .guide-content ol {
    margin: 0 0 var(--spacing-sm) 1.2rem;
}

.guide-item-full .guide-content li + li {
    margin-top: 2px;
}

/* Шапка большого мануала: чуть компактнее, чтобы не смотрелась громоздко */
.guide-item-full .guide-header {
    padding: var(--spacing-md) var(--spacing-lg);
}

.guide-item-full .guide-title {
    font-size: 1.05rem;
    line-height: 1.3;
}

@media (max-width: 768px) {
    .guide-item-full .guide-header {
        align-items: flex-start;
    }

    .guide-item-full .guide-title {
        font-size: 0.95rem;
        line-height: 1.35;
    }
}

/* EMERGENCY FIX - принудительное исправление */
.channel-card * {
    box-sizing: border-box !important;
}

.channel-screenshot {
    all: unset !important;
    display: block !important;
    width: 100% !important;
    height: 180px !important;
    background: var(--color-surface-light) !important;
    margin: 0 !important;
    padding: 0 !important;
    position: relative !important;
    left: 0 !important;
    top: 0 !important;
    border-radius: 8px 8px 0 0 !important;
    overflow: hidden !important;
}

.screenshot-placeholder {
    width: 100% !important;
    height: 100% !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    font-style: italic !important;
    color: var(--color-text-secondary) !important;
}