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


:root {
    --primary-50: #eff6ff;
    --primary-100: #dbeafe;
    --primary-500: #3b82f6;
    --primary-600: #2563eb;
    --primary-700: #1d4ed8;
    --primary-900: #1e3a8a;
    
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    --success-500: #22c55e;
    --warning-500: #f59e0b;
    --error-500: #ef4444;
    
    --font-family: 'Heebo', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
}

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--gray-800);
    background-color: white;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--gray-200);
    z-index: 1000;
}

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

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-icon {
    width: 32px;
    height: 32px;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-900);
}

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

.nav-link {
    text-decoration: none;
    color: var(--gray-600);
    font-weight: 500;
    transition: color 0.2s;
}

.nav-link:hover {
    color: var(--primary-600);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-btn span {
    width: 20px;
    height: 2px;
    background: var(--gray-600);
    transition: all 0.3s;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s;
    cursor: pointer;
    border: none;
    font-size: 0.875rem;
}

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

.btn-primary {
    background: var(--primary-600);
    color: white;
}

.btn-primary:hover {
    background: var(--primary-700);
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: var(--gray-100);
    color: var(--gray-700);
}

.btn-secondary:hover {
    background: var(--gray-200);
}

.btn-outline {
    background: transparent;
    color: var(--primary-600);
    border: 2px solid var(--primary-600);
}

.btn-outline:hover {
    background: var(--primary-600);
    color: white;
}

/* Hero Section */
.hero {
    padding: 8rem 0 4rem;
    background: linear-gradient(135deg, var(--primary-50) 0%, white 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    color: var(--gray-900);
}

.text-gradient {
    background: linear-gradient(135deg, var(--primary-600), var(--primary-700));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--gray-600);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
}

.hero-trust {
    text-align: center;
}

.trust-text {
    color: var(--gray-500);
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

.trust-badges {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.badge {
    background: white;
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    font-size: 0.875rem;
    font-weight: 500;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-200);
}

/* Phone Mockup */
.hero-visual {
    display: flex;
    justify-content: center;
}

.phone-mockup {
    width: 280px;
    height: 560px;
    background: var(--gray-900);
    border-radius: 2rem;
    padding: 1rem;
    box-shadow: var(--shadow-xl);
    position: relative;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: white;
    border-radius: 1.5rem;
    overflow: hidden;
}

.app-interface {
    padding: 2rem 1.5rem;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-50), white);
}

.app-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 2rem;
}

.status-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--success-500);
}

.safety-score {
    text-align: center;
    margin-bottom: 2rem;
}

.score-circle {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: white;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    box-shadow: var(--shadow-lg);
    border: 4px solid var(--success-500);
}

.score-number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--success-500);
}

.score-label {
    font-size: 0.875rem;
    color: var(--gray-600);
}

.recent-activity {
    space-y: 1rem;
}

.activity-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    background: white;
    border-radius: 0.5rem;
    box-shadow: var(--shadow-sm);
    margin-bottom: 0.5rem;
}

.activity-icon {
    font-size: 1.25rem;
}

.activity-text {
    font-size: 0.875rem;
    color: var(--gray-700);
}

/* Sections */
.section {
    padding: 5rem 0;
}

.section-dark {
    background: var(--gray-900);
    color: white;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.section-dark .section-title {
    color: white;
}

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

.section-dark .section-subtitle {
    color: var(--gray-300);
}

/* Steps */
.steps {
    display: grid;
    gap: 4rem;
}

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

.step-number {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--primary-600);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
}

.step-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.step-description {
    color: var(--gray-600);
    line-height: 1.6;
}

.step-visual {
    width: 120px;
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.connect-visual,
.ai-visual,
.alert-visual {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.platform-icon,
.shield-icon,
.brain-icon,
.notification-bell {
    font-size: 3rem;
}

.connection-line {
    width: 40px;
    height: 2px;
    background: var(--primary-600);
    margin: 0 1rem;
}

.analysis-waves {
    display: flex;
    gap: 4px;
    margin-left: 1rem;
}

.wave {
    width: 4px;
    height: 20px;
    background: var(--primary-600);
    border-radius: 2px;
    animation: wave 1.5s ease-in-out infinite;
}

.wave:nth-child(2) {
    animation-delay: 0.2s;
}

.wave:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes wave {
    0%, 100% { transform: scaleY(0.5); }
    50% { transform: scaleY(1); }
}

.alert-badge {
    position: absolute;
    top: -8px;
    right: -8px;
    width: 20px;
    height: 20px;
    background: var(--error-500);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 700;
}

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

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

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

.feature-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: white;
}

.feature-description {
    color: var(--gray-300);
    line-height: 1.6;
}

/* Pricing */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.pricing-card {
    background: white;
    border: 2px solid var(--gray-200);
    border-radius: 1rem;
    padding: 2rem;
    text-align: center;
    position: relative;
    transition: all 0.3s;
}

.pricing-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.pricing-card-featured {
    border-color: var(--primary-600);
    transform: scale(1.05);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-600);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 1rem;
    font-size: 0.875rem;
    font-weight: 600;
}

.pricing-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.pricing-price {
    margin-bottom: 2rem;
}

.price-amount {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary-600);
}

.price-period {
    color: var(--gray-500);
    font-size: 1rem;
}

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

.pricing-features li {
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--gray-100);
    position: relative;
    padding-left: 1.5rem;
}

.pricing-features li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--success-500);
    font-weight: 700;
}

.pricing-note {
    text-align: center;
    color: var(--gray-500);
    font-size: 0.875rem;
}

/* CTA Section */
.cta-section {
    background: var(--primary-600);
    color: white;
    padding: 5rem 0;
    text-align: center;
}

.cta-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.cta-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.cta-note {
    margin-top: 1rem;
    opacity: 0.8;
    font-size: 0.875rem;
}

/* Footer */
.footer {
    background: var(--gray-900);
    color: white;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-brand {
    max-width: 300px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.footer-description {
    color: var(--gray-300);
    line-height: 1.6;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.footer-title {
    font-weight: 600;
    margin-bottom: 1rem;
}

.footer-list {
    list-style: none;
}

.footer-list li {
    margin-bottom: 0.5rem;
}

.footer-list a {
    color: var(--gray-300);
    text-decoration: none;
    transition: color 0.2s;
}

.footer-list a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid var(--gray-700);
    padding-top: 1rem;
    text-align: center;
    color: var(--gray-400);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: center;
    }
    
    .trust-badges {
        flex-direction: column;
        align-items: center;
    }
    
    .step {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .pricing-card-featured {
        transform: none;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 0.5rem;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .phone-mockup {
        width: 240px;
        height: 480px;
    }
}