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

:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --secondary-color: #10b981;
    --accent-color: #f59e0b;
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --border-color: #475569;
    --gradient: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
}

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

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s;
}

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

.nav-auth-btn {
    padding: 0.75rem 1.5rem;
    background: rgba(139, 146, 255, 0.2);
    color: #e0e7ff;
    border: 1px solid rgba(139, 146, 255, 0.5);
    border-radius: 0.5rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    font-size: 0.9rem;
    margin-right: 0.75rem;
}

.nav-auth-btn:hover {
    background: rgba(139, 146, 255, 0.3);
    color: #ffffff;
    border-color: rgba(139, 146, 255, 0.7);
    transform: translateY(-1px);
}

.cta-button, .primary-button, .secondary-button {
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 600;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all 0.3s;
    font-size: 0.9rem;
}

.cta-button, .primary-button {
    background: var(--gradient);
    color: white;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.2);
}

.cta-button:hover, .primary-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(99, 102, 241, 0.4);
}

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

.secondary-button:hover {
    background: var(--bg-secondary);
    border-color: var(--primary-color);
}

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

/* Hero Section */
.hero {
    padding: 8rem 2rem 6rem;
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 3rem;
    min-height: 85vh;
}

.hero-top {
    text-align: center;
    padding: 2rem 0;
}

.hero-bottom {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}

.highlight {
    background: linear-gradient(135deg, #f59e0b, #f97316);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    padding: 0 0.25rem;
}

.markdown-highlight {
    background: linear-gradient(135deg, #f59e0b, #f97316);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.6;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.hero-subtitle strong {
    color: #fbbf24;
    font-weight: 600;
}

.hero-stats {
    display: flex;
    gap: 2rem;
    justify-content: center;
    margin-bottom: 2rem;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--secondary-color);
}

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

.hero-buttons {
    display: flex;
    gap: 1rem;
}

.ai-platforms-card {
    background: var(--bg-secondary);
    border-radius: 1rem;
    border: 1px solid var(--border-color);
    padding: 2.5rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.platforms-header {
    text-align: center;
    margin-bottom: 2rem;
}

.platforms-header h3 {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.platforms-header p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.platforms-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.platform-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.platform-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
    transition: all 0.3s;
    cursor: pointer;
    border: 2px solid var(--border-color);
    background: var(--bg-primary);
    padding: 5px;
}

.platform-icon:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
    border-color: var(--primary-color);
}

.platform-name {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 500;
}

.platforms-footer {
    text-align: center;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.check-icon {
    color: var(--secondary-color);
    font-size: 1.2rem;
    margin-right: 0.5rem;
    font-weight: bold;
}

/* Problem Section */
.problem-section {
    padding: 4rem 0;
    background: var(--bg-secondary);
}

.problem-section h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
}

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

.problem-item {
    text-align: center;
    padding: 2rem;
}

.problem-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.problem-item h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

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

/* Features Section */
.features-section {
    padding: 4rem 0;
}

.features-section h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--bg-secondary);
    padding: 2rem;
    border-radius: 1rem;
    border: 1px solid var(--border-color);
    transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

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

/* How It Works Section */
.how-it-works-section {
    padding: 4rem 0;
    background: var(--bg-secondary);
}

.how-it-works-section h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
}

.steps-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.step {
    text-align: center;
    padding: 2rem;
}

.step-number {
    width: 60px;
    height: 60px;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 1.5rem;
    color: white;
}

.step h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

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

/* Demo Section */
.demo-section {
    padding: 4rem 0;
}

.demo-section h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
}

.demo-container {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 2rem;
    align-items: center;
}

.demo-before, .demo-after {
    background: var(--bg-secondary);
    border-radius: 1rem;
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.demo-before h3, .demo-after h3 {
    padding: 1rem;
    background: var(--bg-tertiary);
    margin: 0;
    font-size: 1.1rem;
}

.demo-code {
    padding: 1.5rem;
}

.demo-code pre {
    color: var(--text-secondary);
    font-family: 'Monaco', 'Menlo', monospace;
    font-size: 0.9rem;
    line-height: 1.5;
}

.demo-arrow {
    font-size: 2rem;
    color: var(--primary-color);
    font-weight: bold;
}

/* Auth Section */
.auth-section {
    padding: 4rem 0;
    background: var(--bg-secondary);
}

.auth-section h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
}

.auth-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    max-width: 800px;
    margin: 0 auto;
}

.auth-card {
    background: var(--bg-primary);
    padding: 2rem;
    border-radius: 1rem;
    border: 1px solid var(--border-color);
    text-align: center;
}

.auth-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.auth-card p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.auth-form input {
    padding: 1rem;
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 1rem;
}

.auth-form input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.auth-btn {
    padding: 1rem;
    background: var(--gradient);
    color: white;
    border: none;
    border-radius: 0.5rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    font-size: 1rem;
}

.auth-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(99, 102, 241, 0.3);
}

.auth-link {
    margin-top: 1rem;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.auth-switch {
    margin: 0;
    font-size: 0.875rem;
    color: var(--text-muted);
    text-align: center;
}

.auth-link a {
    color: var(--primary-color);
    text-decoration: none;
}

.auth-link a:hover {
    text-decoration: underline;
}

/* Pricing Section */
.pricing-section {
    padding: 4rem 0;
    background: var(--bg-secondary);
}

.pricing-section h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 2rem;
    text-align: center;
    position: relative;
    transition: transform 0.3s, box-shadow 0.3s;
}

.pricing-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.pricing-card.featured {
    border-color: var(--primary-color);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.2);
}

.popular-badge {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 1rem;
    font-size: 0.8rem;
    font-weight: 600;
}

.pricing-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.price {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 2rem;
}

.price span {
    font-size: 1rem;
    color: var(--text-muted);
}

.pricing-features {
    list-style: none;
    margin-bottom: 2rem;
}

.pricing-features li {
    padding: 0.5rem 0;
    color: var(--text-secondary);
}

.pricing-features li:before {
    content: "✓";
    color: var(--secondary-color);
    margin-right: 0.5rem;
}

.pricing-button {
    width: 100%;
    background: var(--gradient);
    color: white;
    border: none;
    padding: 1rem;
    border-radius: 0.5rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.pricing-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(99, 102, 241, 0.3);
}

/* AI Crawlability Checker */
.crawlability-checker {
    background: var(--bg-secondary);
    padding: 2.5rem;
    border-radius: 1rem;
    border: 1px solid var(--border-color);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    text-align: center;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.crawlability-checker h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.checker-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 1rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

#website-url {
    flex: 1;
    padding: 1rem;
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 1rem;
}

#website-url:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.check-button {
    padding: 1rem 2rem;
    background: var(--gradient);
    color: white;
    border: none;
    border-radius: 0.5rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    white-space: nowrap;
}

.check-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(99, 102, 241, 0.3);
}

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

/* Auth Modal */
.auth-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-muted);
    cursor: pointer;
    transition: color 0.3s;
}

.modal-close:hover {
    color: var(--text-primary);
}

.auth-modal-content {
    background: var(--bg-secondary);
    border-radius: 1rem;
    border: 1px solid var(--border-color);
    width: 90%;
    max-width: 400px;
    min-width: 320px;
    overflow: hidden;
    margin: 1rem;
}

.auth-modal-header {
    padding: 2rem 2rem 1rem;
    text-align: center;
    position: relative;
}

.auth-modal-header h3 {
    margin: 0;
    color: var(--text-primary);
    font-size: 1.5rem;
}

.auth-modal-body {
    padding: 0 1.5rem 2rem;
}

.auth-modal-body p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    text-align: center;
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.auth-form input {
    padding: 0.875rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 1rem;
    width: 100%;
    box-sizing: border-box;
}

.auth-form input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.auth-primary-btn {
    padding: 0.875rem 1rem;
    background: var(--gradient);
    color: white;
    border: none;
    border-radius: 0.5rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    font-size: 1rem;
    width: 100%;
    box-sizing: border-box;
}

.auth-primary-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(99, 102, 241, 0.3);
}

.auth-switch {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
    margin: 0;
}

.auth-switch a {
    color: var(--primary-color);
    text-decoration: none;
}

.auth-switch a:hover {
    text-decoration: underline;
}

.auth-description {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
    text-align: center;
    line-height: 1.4;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.input-group label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.auth-divider {
    height: 1px;
    background: var(--border-color);
    margin: 1.5rem 0 1rem;
    opacity: 0.5;
}

/* Modern Alert Dialog System */
.alert-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(17, 24, 39, 0.75);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: all 250ms cubic-bezier(0.4, 0, 0.2, 1);
    backdrop-filter: blur(4px);
}

.alert-overlay.show {
    opacity: 1;
    visibility: visible;
}

.alert-dialog {
    background: var(--bg-secondary);
    border-radius: 12px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    width: 90%;
    max-width: 420px;
    transform: scale(0.95) translateY(20px);
    transition: transform 250ms cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid var(--border-color);
}

.alert-overlay.show .alert-dialog {
    transform: scale(1) translateY(0);
}

.alert-header {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 2rem 2rem 1.5rem;
}

.alert-icon-container {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 150ms cubic-bezier(0.4, 0, 0.2, 1);
}

.alert-icon {
    width: 24px;
    height: 24px;
    stroke-width: 2.5;
}

.alert-title {
    font-size: 1.25rem;
    font-weight: 600;
    line-height: 1.4;
    color: var(--text-primary);
    margin: 0;
    margin-top: 0.5rem;
}

.alert-body {
    padding: 0 2rem 1.5rem;
}

.alert-message {
    font-size: 0.875rem;
    font-weight: 400;
    line-height: 1.5;
    color: var(--text-secondary);
    margin: 0;
}

.alert-actions {
    display: flex;
    gap: 0.75rem;
    padding: 1.5rem 2rem 2rem;
    justify-content: flex-end;
}

.alert-btn {
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 500;
    border: none;
    cursor: pointer;
    transition: all 150ms cubic-bezier(0.4, 0, 0.2, 1);
    min-width: 80px;
}

.alert-btn:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.alert-btn-secondary {
    background: var(--bg-primary);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.alert-btn-secondary:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

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

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

/* Alert Type Variants */
.alert-dialog.success .alert-icon-container {
    background: rgba(16, 185, 129, 0.15);
    color: #10b981;
    border: 2px solid rgba(16, 185, 129, 0.3);
}

.alert-dialog.success .alert-btn-primary {
    background: linear-gradient(135deg, #10b981, #059669);
}

.alert-dialog.success .alert-btn-primary:hover {
    background: linear-gradient(135deg, #059669, #047857);
}

.alert-dialog.warning .alert-icon-container {
    background: rgba(245, 158, 11, 0.15);
    color: #f59e0b;
    border: 2px solid rgba(245, 158, 11, 0.3);
}

.alert-dialog.warning .alert-btn-primary {
    background: linear-gradient(135deg, #f59e0b, #d97706);
}

.alert-dialog.warning .alert-btn-primary:hover {
    background: linear-gradient(135deg, #d97706, #b45309);
}

.alert-dialog.error .alert-icon-container {
    background: rgba(239, 68, 68, 0.15);
    color: #ef4444;
    border: 2px solid rgba(239, 68, 68, 0.3);
}

.alert-dialog.error .alert-btn-primary {
    background: linear-gradient(135deg, #ef4444, #dc2626);
}

.alert-dialog.error .alert-btn-primary:hover {
    background: linear-gradient(135deg, #dc2626, #b91c1c);
}

.alert-dialog.info .alert-icon-container {
    background: rgba(99, 102, 241, 0.15);
    color: #6366f1;
    border: 2px solid rgba(99, 102, 241, 0.3);
}

.alert-dialog.info .alert-btn-primary {
    background: var(--gradient);
}

.alert-dialog.info .alert-btn-primary:hover {
    background: linear-gradient(135deg, #4f46e5, #059669);
}

/* CTA Section */
.cta-section {
    padding: 4rem 0;
    text-align: center;
}

.cta-section h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.cta-section p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* Footer */
.footer {
    background: var(--bg-secondary);
    padding: 3rem 0 1rem;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.footer-section a {
    display: block;
    color: var(--text-secondary);
    text-decoration: none;
    margin-bottom: 0.5rem;
    transition: color 0.3s;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-bottom {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero {
        padding: 6rem 1rem 2rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .checker-form {
        flex-direction: column;
    }
    
    .check-button {
        white-space: normal;
    }
    
    .demo-container {
        grid-template-columns: 1fr;
    }
    
    .demo-arrow {
        transform: rotate(90deg);
    }
    
    .auth-container {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .nav-menu {
        display: none;
    }
    
    .auth-modal-content {
        width: 95%;
        margin: 0.5rem;
        min-width: 280px;
    }
    
    .auth-modal-header {
        padding: 1.5rem 1.5rem 1rem;
    }
    
    .auth-modal-body {
        padding: 0 1.5rem 1.5rem;
    }
    
    .alert-actions {
        flex-direction: column-reverse;
    }
    
    .alert-btn {
        width: 100%;
    }
}
/* Alert Icon Styles for Different Types */
.alert-dialog.warning .alert-icon {
    stroke: currentColor;
}

.alert-dialog.warning .alert-icon path {
    d: path("M12 9v2m0 4h.01m-6.938 4h13.856c1.54 0 2.502-1.667 1.732-2.5L13.732 4c-.77-.833-1.732-.833-2.5 0L4.268 18.5c-.77.833.192 2.5 1.732 2.5z");
}

/* Warning Icon SVG */
.alert-dialog.warning .alert-icon {
    fill: none;
    stroke: currentColor;
    stroke-linecap: round;
    stroke-linejoin: round;
}

/* Show alert with animation */
.alert-overlay[style*="flex"] {
    opacity: 1 !important;
    visibility: visible !important;
}

.alert-overlay[style*="flex"] .alert-dialog {
    transform: scale(1) translateY(0) !important;
}