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

:root {
    --primary-color: #2563EB;
    --primary-dark: #1E40AF;
    --secondary-color: #64748B;
    --text-primary: #0F172A;
    --text-secondary: #475569;
    --bg-white: #FFFFFF;
    --bg-gray: #F8FAFC;
    --bg-dark: #1E293B;
    --border-color: #E2E8F0;
    --gradient-start: #FAC10F;
    --gradient-end: #FE0000;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    padding: 16px 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 20px;
    color: var(--text-primary);
}

.logo-text {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: var(--primary-color);
}

.btn-primary-small {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: white !important;
    padding: 10px 20px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: opacity 0.2s;
}

.btn-primary-small:hover {
    opacity: 0.9;
    color: white !important;
}

/* Hero Section */
.hero {
    padding: 140px 0 80px;
    background: linear-gradient(180deg, #FFFFFF 0%, #F8FAFC 100%);
    min-height: 90vh;
    display: flex;
    align-items: center;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-title {
    font-size: 64px;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    color: var(--text-primary);
}

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

.hero-description {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.app-store-btn {
    display: inline-block;
    transition: transform 0.2s;
}

.app-store-btn:hover {
    transform: translateY(-2px);
}

.app-store-btn img {
    height: 60px;
    width: auto;
}

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

/* Device Mockup */
.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.device-mockup {
    background: transparent;
    border-radius: 0;
    padding: 0;
    box-shadow: none;
    max-width: 100%;
}

.device-mockup.mac {
    border-radius: 0;
}

.screen {
    background: transparent;
    border-radius: 0;
    overflow: visible;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-screenshot {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(0, 0, 0, 0.08);
}

.app-preview {
    width: 100%;
    height: 500px;
    display: flex;
    flex-direction: column;
}

.app-header {
    background: #F8FAFC;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
}

.app-controls {
    display: flex;
    gap: 8px;
}

.control {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.control.red { background: #FF5F57; }
.control.yellow { background: #FFBD2E; }
.control.green { background: #28CA42; }

.app-content {
    display: flex;
    flex: 1;
    overflow: hidden;
}

.sidebar {
    width: 200px;
    background: #F8FAFC;
    border-right: 1px solid var(--border-color);
    padding: 16px;
}

.sidebar-item {
    padding: 12px;
    border-radius: 6px;
    margin-bottom: 4px;
    color: var(--text-secondary);
    font-size: 14px;
}

.sidebar-item.active {
    background: var(--primary-color);
    color: white;
}

.main-content {
    flex: 1;
    padding: 24px;
    overflow-y: auto;
}

.item-card {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 16px;
    margin-bottom: 12px;
}

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

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

/* Features Section */
.features {
    padding: 100px 0;
    background: var(--bg-white);
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-title {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.section-description {
    font-size: 20px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
}

.feature-card {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 32px;
    transition: all 0.3s;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border: 2px solid;
    border-image: linear-gradient(135deg, var(--gradient-start), var(--gradient-end)) 1;
}

.feature-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    margin-bottom: 24px;
}

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

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

/* Security Section */
.security {
    padding: 100px 0;
    background: var(--bg-gray);
}

.security-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.security-features {
    margin-top: 32px;
}

.security-item {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    color: var(--text-primary);
    font-weight: 500;
}

.security-item svg {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    flex-shrink: 0;
}

.security-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.security-badge {
    width: 200px;
    height: 200px;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    box-shadow: var(--shadow-xl);
}

.security-badge svg {
    width: 80px;
    height: 80px;
    margin-bottom: 12px;
}

.security-badge p {
    font-weight: 600;
    font-size: 18px;
}

/* Pricing Section */
.pricing {
    padding: 100px 0;
    background: var(--bg-white);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
    max-width: 800px;
    margin: 0 auto;
}

.pricing-card {
    background: white;
    border: 2px solid var(--border-color);
    border-radius: 16px;
    padding: 40px;
    position: relative;
    transition: all 0.3s;
}

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

.pricing-card.featured {
    border: 2px solid;
    border-image: linear-gradient(135deg, var(--gradient-start), var(--gradient-end)) 1;
    box-shadow: var(--shadow-lg);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: white;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.pricing-header {
    text-align: center;
    margin-bottom: 32px;
}

.pricing-title {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--text-primary);
}

.pricing-options {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 16px;
}

.pricing-option {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    background: var(--bg-gray);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.pricing-price {
    display: flex;
    align-items: baseline;
    gap: 8px;
}

.price-amount {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
}

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

.pricing-save {
    font-size: 12px;
    font-weight: 600;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    padding: 4px 8px;
    border-radius: 4px;
    background-color: rgba(250, 193, 15, 0.1);
}

.pricing-note {
    font-size: 14px;
    color: var(--text-secondary);
    margin-top: 8px;
    text-align: center;
}

.pricing-features {
    list-style: none;
    margin-bottom: 32px;
}

.pricing-features li {
    padding: 12px 0;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
}

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

.btn-primary {
    width: 100%;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: white;
    padding: 16px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    display: block;
    text-align: center;
    transition: opacity 0.2s;
}

.btn-primary:hover {
    opacity: 0.9;
}

/* Download Section */
.download {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: white;
    text-align: center;
}

.download .section-title,
.download .section-description {
    color: white;
}

.download-buttons {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-top: 40px;
    flex-wrap: wrap;
}

.app-store-btn-large img {
    height: 70px;
    width: auto;
}

/* Footer */
.footer {
    background: var(--bg-dark);
    color: white;
    padding: 60px 0 24px;
}

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

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 20px;
    margin-bottom: 16px;
}

.footer-description {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
}

.footer-title {
    font-weight: 600;
    margin-bottom: 16px;
    font-size: 16px;
}

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

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.2s;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
}

/* Responsive Design */
@media (max-width: 968px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-title {
        font-size: 48px;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .security-content {
        grid-template-columns: 1fr;
    }
    
    .nav-links {
        gap: 16px;
    }
    
    .nav-links a:not(.btn-primary-small) {
        display: none;
    }
}

@media (max-width: 640px) {
    .hero-title {
        font-size: 36px;
    }
    
    .section-title {
        font-size: 36px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
    }
    
    .download-buttons {
        flex-direction: column;
        align-items: center;
    }
}

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

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.feature-card {
    animation: fadeInUp 0.6s ease-out;
}

.feature-card:nth-child(1) { animation-delay: 0.1s; }
.feature-card:nth-child(2) { animation-delay: 0.2s; }
.feature-card:nth-child(3) { animation-delay: 0.3s; }
.feature-card:nth-child(4) { animation-delay: 0.4s; }
.feature-card:nth-child(5) { animation-delay: 0.5s; }
.feature-card:nth-child(6) { animation-delay: 0.6s; }