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

:root {
    --primary: #0044BB;
    --primary-light: #4488FF;
    --accent: #00CC55;
    --dark: #1a1a1a;
    --darker: #0d0d0d;
    --light: #ffffff;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    background: var(--light);
    color: var(--gray-900);
    line-height: 1.6;
}

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

/* Navigation */
.nav {
    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-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 64px;
}

.logo {
    font-size: 24px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav-links a {
    text-decoration: none;
    color: var(--gray-700);
    font-weight: 500;
    transition: color 0.2s;
}

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

.nav-links a.cta-button {
    color: var(--light);
}

.nav-links a.cta-button:hover {
    color: var(--light);
}

/* Hero Section */
.hero {
    padding-top: 120px;
    padding-bottom: 80px;
    background: linear-gradient(180deg, var(--gray-50) 0%, var(--light) 100%);
}

.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 60px;
}

.hero-title {
    font-size: 64px;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    background: linear-gradient(135deg, var(--gray-900) 0%, var(--gray-700) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 24px;
    color: var(--gray-600);
    line-height: 1.5;
    margin-bottom: 40px;
}

.hero-cta {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.cta-button {
    display: inline-block;
    padding: 14px 32px;
    background: var(--primary);
    color: var(--light);
    text-decoration: none;
    border-radius: 12px;
    font-weight: 600;
    font-size: 16px;
    transition: all 0.3s;
    box-shadow: 0 4px 12px rgba(0, 68, 187, 0.3);
}

.cta-button:hover {
    background: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 68, 187, 0.4);
}

.cta-button.large {
    padding: 18px 48px;
    font-size: 18px;
}

.availability {
    font-size: 14px;
    color: var(--gray-600);
}

.hero-image {
    text-align: center;
    margin-top: 40px;
}

.screenshot-large {
    max-width: 600px;
    width: 100%;
    border-radius: 24px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

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

.section-title {
    font-size: 48px;
    font-weight: 800;
    text-align: center;
    margin-bottom: 60px;
    color: var(--gray-900);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.feature-card {
    background: var(--gray-50);
    border-radius: 20px;
    padding: 32px;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--gray-900);
}

.feature-card p {
    font-size: 16px;
    color: var(--gray-600);
    line-height: 1.6;
    margin-bottom: 24px;
}

.feature-screenshot {
    max-width: 100%;
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

/* Why TriLog Section */
.why {
    padding: 100px 0;
    background: linear-gradient(180deg, var(--dark) 0%, var(--darker) 100%);
    color: var(--light);
}

.why .section-title {
    color: var(--light);
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 40px;
}

.why-item {
    padding: 32px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s;
}

.why-item:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-4px);
}

.why-icon {
    font-size: 40px;
    margin-bottom: 16px;
}

.why-item h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--light);
}

.why-item p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
}

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

.download-content h2 {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 16px;
}

.download-content > p {
    font-size: 20px;
    margin-bottom: 40px;
    opacity: 0.95;
}

.download-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 24px;
}

.app-store-button {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 14px 28px;
    background: var(--dark);
    color: var(--light);
    text-decoration: none;
    border-radius: 12px;
    font-size: 14px;
    transition: all 0.3s;
}

.app-store-button:hover {
    background: var(--darker);
    transform: translateY(-2px);
}

.app-store-button svg {
    width: 32px;
    height: 32px;
}

.app-store-button span {
    text-align: left;
    line-height: 1.3;
}

.pricing-note {
    font-size: 16px;
    opacity: 0.9;
}

/* Footer */
.footer {
    background: var(--gray-900);
    color: var(--gray-300);
    padding: 60px 0 30px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 40px;
    flex-wrap: wrap;
    gap: 40px;
}

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

.footer-brand .logo {
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 12px;
}

.footer-brand p {
    color: var(--gray-400);
}

.footer-links {
    display: flex;
    gap: 32px;
    flex-wrap: wrap;
}

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

.footer-links a:hover {
    color: var(--light);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid var(--gray-800);
}

.footer-bottom p {
    font-size: 14px;
    color: var(--gray-500);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        gap: 16px;
    }

    .nav-links a:not(.cta-button) {
        display: none;
    }

    .hero-title {
        font-size: 40px;
    }

    .hero-subtitle {
        font-size: 18px;
    }

    .section-title {
        font-size: 32px;
    }

    .features-grid,
    .why-grid {
        grid-template-columns: 1fr;
    }

    .download-content h2 {
        font-size: 32px;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }

    .footer-links {
        justify-content: center;
    }
}

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

.hero-content,
.feature-card,
.why-item {
    animation: fadeInUp 0.6s ease-out;
}