:root {
    --primary: #135bec;
    --primary-gradient: linear-gradient(135deg, #135bec 0%, #2A7FFF 100%);
    --bg-light: #ffffff;
    --text-primary: #1a1a1a;
    --text-secondary: #666666;
    --text-tertiary: #999999;
    --card-bg: rgba(255, 255, 255, 0.8);
    --border: rgba(0, 0, 0, 0.05);
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

body {
    background-color: var(--bg-light);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* Navbar */
nav {
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-primary);
}

.nav-brand img {
    width: 40px;
    height: 40px;
    border-radius: 8px;
}

.nav-brand span {
    font-size: 20px;
    font-weight: 800;
}

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

.nav-links a {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 15px;
    transition: var(--transition);
}

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

.nav-cta {
    background: var(--primary);
    color: white;
    padding: 10px 20px;
    border-radius: 10px;
    font-weight: 600;
    transition: var(--transition);
}

.nav-cta:hover {
    background: #0d46b7;
}

/* Hero Section */
.hero {
    padding: 160px 0 100px;
    display: flex;
    align-items: center;
    gap: 60px;
}

.hero-content {
    flex: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(19, 91, 236, 0.1);
    color: var(--primary);
    border-radius: 50px;
    font-size: 13px;
    font-weight: 700;
    margin-bottom: 24px;
}

.hero-title {
    font-size: 64px;
    line-height: 1.1;
    font-weight: 800;
    margin-bottom: 24px;
}

.hero-title span {
    color: var(--primary);
}

.hero-description {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 500px;
}

.hero-visual {
    flex: 1;
    position: relative;
    display: flex;
    justify-content: center;
}

.hero-image {
    width: 100%;
    max-width: 400px;
    height: 520px;
    object-fit: cover;
    border-radius: 40px;
    box-shadow: 0 40px 100px rgba(0, 0, 0, 0.1);
    transform: perspective(1000px) rotateY(-10deg) rotateX(5deg);
}

/* App Store Button */
.app-store-btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: #1a1a1a;
    color: white;
    padding: 12px 28px;
    border-radius: 14px;
    text-decoration: none;
    transition: var(--transition);
}

.app-store-btn:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.app-store-btn i {
    font-size: 28px;
}

.btn-text {
    display: flex;
    flex-direction: column;
}

.btn-small {
    font-size: 11px;
    opacity: 0.8;
}

.btn-large {
    font-size: 19px;
    font-weight: 700;
}

/* Features */
.features {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 40px;
    font-weight: 800;
    margin-bottom: 16px;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.feature-card {
    padding: 40px;
    border-radius: 24px;
    background: var(--card-bg);
    border: 1px solid var(--border);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary);
}

.feature-icon {
    width: 56px;
    height: 56px;
    background: rgba(19, 91, 236, 0.1);
    color: var(--primary);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin-bottom: 24px;
}

.feature-card h3 {
    font-size: 24px;
    margin-bottom: 12px;
}

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

/* Showcase Section */
.showcase {
    padding: 100px 0;
    background: #f8faff;
}

.showcase-row {
    display: flex;
    align-items: center;
    gap: 80px;
    margin-bottom: 100px;
}

.showcase-row:nth-child(even) {
    flex-direction: row-reverse;
}

.showcase-content {
    flex: 1;
}

.showcase-content h2 {
    font-size: 36px;
    margin-bottom: 20px;
}

.showcase-image {
    flex: 1;
}

.showcase-img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: 32px;
    box-shadow: var(--shadow);
}

/* Footer */
footer {
    padding: 80px 0 40px;
    background: white;
    border-top: 1px solid var(--border);
}

.footer-top {
    display: flex;
    justify-content: space-between;
    margin-bottom: 60px;
}

.footer-brand h2 {
    margin-bottom: 16px;
}

.footer-nav {
    display: flex;
    gap: 80px;
}

.footer-col h4 {
    margin-bottom: 20px;
}

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

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

.footer-col ul li a {
    text-decoration: none;
    color: var(--text-secondary);
    transition: var(--transition);
}

.footer-col ul li a:hover {
    color: var(--primary);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 40px;
    border-top: 1px solid var(--border);
    color: var(--text-tertiary);
    font-size: 14px;
}

/* Responsive */
@media (max-width: 992px) {
    .hero {
        flex-direction: column;
        text-align: center;
        padding-top: 120px;
    }
    .hero-title { font-size: 48px; }
    .hero-description { margin: 0 auto 40px; }
    .feature-grid { grid-template-columns: 1fr; }
    .showcase-row { flex-direction: column !important; gap: 40px; text-align: center; }
}