/* Modern UI inspired by VK Ads - Clean & Professional */

/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #0077FF;
    --primary-dark: #0066DD;
    --primary-light: #E6F2FF;
    --secondary: #00C853;
    --background: #FFFFFF;
    --surface: #F7F8FA;
    --surface-hover: #EBEDF0;
    --text-primary: #2C2D2E;
    --text-secondary: #818C99;
    --text-tertiary: #99A2AD;
    --border: #E1E3E6;
    --shadow-sm: 0 0 2px rgba(0, 0, 0, 0.08), 0 2px 4px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 0 2px rgba(0, 0, 0, 0.08), 0 4px 16px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 0 2px rgba(0, 0, 0, 0.08), 0 8px 32px rgba(0, 0, 0, 0.12);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    color: var(--text-primary);
    line-height: 1.5;
    background: var(--background);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Container */
.container {
    max-width: 1232px;
    margin: 0 auto;
    padding: 0 16px;
}

.container-narrow {
    max-width: 760px;
    margin: 0 auto;
    padding: 0 16px;
}

/* Header */
.header {
    padding: 16px 0;
    background: var(--background);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(8px);
    background: rgba(255, 255, 255, 0.95);
}

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

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    transition: opacity 0.2s;
}

.logo:hover {
    opacity: 0.8;
}

.logo-icon {
    height: 56px;
    width: auto;
    object-fit: contain;
}

.nav {
    display: flex;
    gap: 8px;
    align-items: center;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 14px;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    transition: all 0.2s;
}

.nav-link:hover {
    color: var(--text-primary);
    background: var(--surface);
}

.nav-link-primary {
    background: var(--primary);
    color: white;
    padding: 8px 16px;
}

.nav-link-primary:hover {
    background: var(--primary-dark);
    color: white;
}

/* Hero Section */
.hero {
    padding: 80px 0 120px;
    background: linear-gradient(180deg, var(--primary-light) 0%, var(--background) 100%);
}

.hero-content {
    text-align: center;
    max-width: 720px;
    margin: 0 auto;
}

.hero-title {
    font-size: 48px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

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

.hero-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 36px;
    line-height: 1.6;
}

.hero-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    margin-bottom: 56px;
}

.hero-stats {
    display: flex;
    gap: 56px;
    justify-content: center;
    margin-top: 56px;
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 4px;
    color: var(--text-primary);
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-weight: 500;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}

.btn-large {
    padding: 14px 24px;
    font-size: 16px;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    box-shadow: var(--shadow-md);
}

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

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

.btn-outline {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-primary);
}

.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--primary-light);
}

.btn-arrow {
    font-size: 18px;
}

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

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

.section-title {
    text-align: center;
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 48px;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.section-subtitle {
    text-align: center;
    font-size: 18px;
    color: var(--text-secondary);
    margin: -32px auto 48px;
    max-width: 600px;
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.feature-card {
    background: white;
    padding: 32px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    transition: all 0.2s;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.feature-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
}

.feature-icon {
    width: 48px;
    height: 48px;
    margin-bottom: 16px;
    display: block;
}

.feature-icon svg {
    width: 100%;
    height: 100%;
    fill: var(--primary);
}

.feature-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.feature-description {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 14px;
}

/* How It Works */
.steps {
    display: flex;
    flex-direction: column;
    gap: 24px;
    max-width: 640px;
    margin: 0 auto;
}

.step {
    display: flex;
    gap: 20px;
    align-items: start;
}

.step-number {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 600;
}

.step-content {
    flex: 1;
}

.step-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--text-primary);
}

.step-description {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.6;
}

/* Channels */
.channels-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
}

.channel-card {
    background: white;
    padding: 28px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    text-align: center;
    position: relative;
    transition: all 0.2s;
}

.channel-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-sm);
}

.channel-card-coming {
    opacity: 0.5;
}

.channel-icon {
    font-size: 40px;
    margin-bottom: 12px;
    display: block;
}

.channel-name {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--text-primary);
}

.channel-description {
    color: var(--text-secondary);
    font-size: 13px;
    line-height: 1.5;
}

.coming-soon-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    background: var(--text-tertiary);
    color: white;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
}

/* Pricing Section */
.pricing {
    padding: 80px 0;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
    max-width: 900px;
    margin: 0 auto;
}

.pricing-card {
    background: white;
    border: 2px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    text-align: center;
    transition: all 0.3s;
}

.pricing-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.pricing-card.featured {
    border-color: var(--primary);
    background: linear-gradient(180deg, var(--primary-light) 0%, white 100%);
    position: relative;
}

.pricing-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: var(--primary);
    color: white;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.pricing-name {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.pricing-price {
    font-size: 48px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 8px;
}

.pricing-price-currency {
    font-size: 24px;
}

.pricing-period {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.pricing-description {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 28px;
    line-height: 1.6;
}

.pricing-features {
    list-style: none;
    padding: 0;
    margin: 0 0 32px 0;
    text-align: left;
}

.pricing-feature {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
}

.pricing-feature:last-child {
    border-bottom: none;
}

.pricing-feature-icon {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    color: var(--secondary);
}

.pricing-feature.disabled {
    color: var(--text-tertiary);
}

.pricing-feature.disabled .pricing-feature-icon {
    color: var(--text-tertiary);
}

/* CTA Section */
.cta {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
}

.cta-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.cta-title {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 12px;
}

.cta-subtitle {
    font-size: 16px;
    opacity: 0.9;
    margin-bottom: 28px;
}

/* Footer */
.footer {
    padding: 40px 0;
    background: var(--surface);
    border-top: 1px solid var(--border);
}

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

.footer-description {
    color: var(--text-secondary);
    font-size: 13px;
    margin-top: 6px;
}

.footer-right {
    color: var(--text-secondary);
    font-size: 13px;
    text-align: right;
}

.footer-links {
    display: flex;
    gap: 24px;
    margin-bottom: 16px;
    justify-content: flex-end;
}

.footer-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s;
}

.footer-link:hover {
    color: var(--primary);
}

.footer-logo-text {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.2s;
}

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

/* Page Styles */
.page-header {
    text-align: center;
    margin-bottom: 48px;
}

.page-title {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.page-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
}

/* Support Page */
.support-content {
    max-width: 800px;
    margin: 0 auto;
}

.faq-section {
    margin-bottom: 48px;
}

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

.faq-item {
    margin-bottom: 24px;
    padding: 24px;
    background: white;
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
}

.faq-question {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.faq-answer {
    color: var(--text-secondary);
    line-height: 1.6;
}

.faq-answer p {
    margin-bottom: 12px;
}

.faq-answer ol, .faq-answer ul {
    margin-left: 20px;
    margin-bottom: 12px;
}

.contact-section {
    background: var(--surface);
    padding: 32px;
    border-radius: var(--radius-md);
    text-align: center;
}

.contact-title {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.contact-description {
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.contact-methods {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
    margin-top: 24px;
}

.contact-method {
    background: white;
    padding: 24px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
}

.contact-method h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.contact-method p {
    color: var(--text-secondary);
    margin-bottom: 16px;
}

/* Documentation Page */
.documentation-content {
    max-width: 900px;
    margin: 0 auto;
}

.doc-section {
    margin-bottom: 48px;
}

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

.doc-content {
    background: white;
    padding: 32px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
}

.doc-content h3 {
    font-size: 18px;
    font-weight: 600;
    margin: 24px 0 12px 0;
    color: var(--text-primary);
}

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

.doc-content p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 12px;
}

.doc-content ul, .doc-content ol {
    margin-left: 20px;
    margin-bottom: 12px;
    color: var(--text-secondary);
}

.doc-content code {
    background: var(--surface);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 14px;
}

/* Privacy & Terms Pages */
.privacy-content, .terms-content {
    max-width: 800px;
    margin: 0 auto;
}

.privacy-section, .terms-section {
    margin-bottom: 32px;
}

.privacy-title, .terms-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.privacy-section p, .terms-section p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 12px;
}

.privacy-section ul, .terms-section ul {
    margin-left: 20px;
    margin-bottom: 12px;
    color: var(--text-secondary);
}

.privacy-section h3, .terms-section h3 {
    font-size: 16px;
    font-weight: 600;
    margin: 16px 0 8px 0;
    color: var(--text-primary);
}

.privacy-section a, .terms-section a {
    color: var(--primary);
    text-decoration: none;
}

.privacy-section a:hover, .terms-section a:hover {
    text-decoration: underline;
}

/* Config Page */
.config-section {
    padding: 48px 0 80px;
    min-height: calc(100vh - 200px);
}

/* Multi-channel selector */
.multi-channel-selector {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.channel-checkbox-item {
    position: relative;
}

.channel-checkbox-label {
    display: block;
    cursor: pointer;
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    padding: 20px;
    transition: all 0.2s;
    background: var(--background);
}

.channel-checkbox-label:hover {
    border-color: var(--primary);
    background: var(--primary-light);
}

.channel-checkbox-label:has(.channel-checkbox:checked) {
    border-color: var(--primary);
    background: var(--primary-light);
    box-shadow: 0 0 0 3px rgba(0, 119, 255, 0.1);
}

.channel-checkbox {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.channel-checkbox-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    text-align: center;
}

.channel-checkbox-content .channel-option-icon {
    font-size: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.channel-checkbox-content .channel-option-icon svg {
    width: 32px;
    height: 32px;
    fill: var(--text-primary);
}

.channel-checkbox-content .channel-option-name {
    font-weight: 600;
    font-size: 14px;
    color: var(--text-primary);
}

.channel-checkbox-content .channel-description {
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.4;
}

/* Channel config sections */
.channel-config {
    display: none;
    margin-bottom: 24px;
    padding: 24px;
    background: var(--surface);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
}

.channel-config.active {
    display: block;
}

.channel-config-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

.channel-config-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.channel-config-icon {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.channel-config-icon svg {
    width: 20px;
    height: 20px;
    fill: var(--primary);
}

/* Slack test section */
.slack-test-section {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
}

/* Alert styles for test results */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    line-height: 1.4;
    border: 1px solid;
}

.alert-success {
    background-color: #d4edda;
    border-color: #c3e6cb;
    color: #155724;
}

.alert-error {
    background-color: #f8d7da;
    border-color: #f5c6cb;
    color: #721c24;
}

.alert-info {
    background-color: #d1ecf1;
    border-color: #bee5eb;
    color: #0c5460;
}

.config-title {
    font-size: 36px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 12px;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.config-subtitle {
    text-align: center;
    color: var(--text-secondary);
    font-size: 16px;
    margin-bottom: 40px;
}

.config-form {
    background: white;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    padding: 36px;
}

.form-section {
    margin-bottom: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid var(--border);
}

.form-section:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.form-section-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-primary);
}

.step-badge {
    background: var(--primary);
    color: white;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 13px;
    font-weight: 600;
}

.channel-selector {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 12px;
}

.channel-option {
    background: var(--background);
    border: 1px solid var(--border);
    padding: 20px 16px;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.channel-option:hover:not(:disabled) {
    border-color: var(--primary);
    background: var(--primary-light);
}

.channel-option.active {
    border-color: var(--primary);
    background: var(--primary-light);
    box-shadow: 0 0 0 3px rgba(0, 119, 255, 0.1);
}

.channel-option:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.channel-option-icon {
    font-size: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.channel-option-icon svg {
    width: 32px;
    height: 32px;
    fill: var(--text-primary);
}

.channel-option-name {
    font-weight: 500;
    font-size: 14px;
    color: var(--text-primary);
}

.channel-config {
    display: none;
}

.channel-config.active {
    display: block;
}

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

.form-label {
    display: block;
    font-weight: 500;
    margin-bottom: 8px;
    font-size: 14px;
    color: var(--text-primary);
}

.form-input,
.form-select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 15px;
    transition: all 0.2s;
    font-family: inherit;
    color: var(--text-primary);
}

.form-input:hover,
.form-select:hover {
    border-color: var(--text-tertiary);
}

.form-input:focus,
.form-select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.form-hint {
    margin-top: 6px;
    font-size: 13px;
    color: var(--text-secondary);
}

.color-picker-group {
    display: flex;
    gap: 12px;
}

.color-input {
    width: 80px;
    height: 44px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
}

.color-text-input {
    flex: 1;
}

.info-box {
    background: var(--primary-light);
    border-left: 3px solid var(--primary);
    padding: 16px;
    border-radius: var(--radius-sm);
    margin-top: 16px;
    font-size: 13px;
    line-height: 1.6;
    color: var(--text-primary);
}

.info-box strong {
    color: var(--primary);
}

.info-box ol {
    margin: 10px 0 0 20px;
}

.info-box a {
    color: var(--primary);
    font-weight: 500;
    text-decoration: none;
}

.info-box a:hover {
    text-decoration: underline;
}

.info-box code {
    background: rgba(0, 0, 0, 0.05);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'SF Mono', 'Monaco', 'Courier New', monospace;
    font-size: 12px;
}

.preview-section {
    margin-top: 28px;
}

.preview-title {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.preview-box {
    background: var(--surface);
    border: 1px dashed var(--border);
    border-radius: var(--radius-md);
    padding: 40px;
    text-align: center;
}

.feedback-button-preview {
    background: var(--primary);
    color: white;
    padding: 12px 20px;
    border-radius: 24px;
    border: none;
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    box-shadow: var(--shadow-sm);
}

.feedback-button-preview:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.form-actions {
    text-align: center;
    margin-top: 28px;
}

/* Code Result */
.code-result {
    margin-top: 40px;
    background: white;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    padding: 36px;
}

.code-result-title {
    font-size: 28px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.code-result-subtitle {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 28px;
    font-size: 14px;
}

.code-box {
    position: relative;
    background: #1E1E1E;
    border-radius: var(--radius-md);
    padding: 20px;
    margin-bottom: 28px;
}

.code-box pre {
    margin: 0;
    overflow-x: auto;
}

.code-box code {
    color: #D4D4D4;
    font-family: 'SF Mono', 'Monaco', 'Courier New', monospace;
    font-size: 13px;
    line-height: 1.6;
}

.copy-button {
    position: absolute;
    top: 12px;
    right: 12px;
    background: var(--primary);
    color: white;
    border: none;
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: all 0.2s;
}

.copy-button:hover {
    background: var(--primary-dark);
}

.copy-button.copied {
    background: var(--secondary);
}

.success-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-title {
        font-size: 32px;
    }
    
    .hero-subtitle {
        font-size: 16px;
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .hero-stats {
        gap: 32px;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .features-grid,
    .channels-grid {
        grid-template-columns: 1fr;
    }
    
    .config-form {
        padding: 24px;
    }
    
    .channel-selector {
        grid-template-columns: 1fr 1fr;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .channel-selector {
        grid-template-columns: 1fr;
    }
}


/* Test result styles */
.test-result {
    margin-top: 8px;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
}

.test-result.success {
    background-color: #E8F5E8;
    color: #2E7D32;
    border: 1px solid #C8E6C9;
}

.test-result.error {
    background-color: #FFEBEE;
    color: #C62828;
    border: 1px solid #FFCDD2;
}

.test-result.loading {
    background-color: #E3F2FD;
    color: #1976D2;
    border: 1px solid #BBDEFB;
}

.input-group {
    display: flex;
    align-items: center;
    gap: 10px;
}

.input-group .form-input {
    flex: 1;
}