:root {
    /* Brand Colors */
    --primary: #0b6efd;
    --primary-dark: #0056ce;
    --secondary: #101828;
    --accent: #00c48c;

    /* Text Colors */
    --text-main: #101828;
    --text-muted: #667085;
    --text-light: #ffffff;

    /* Backgrounds */
    --bg-page: #ffffff;
    --bg-section: #f9fafb;
    --bg-card: #ffffff;

    /* Spacing */
    --container-max: 1200px;
    --header-height: 80px;
}

/* Reset & Base */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    color: var(--text-main);
    background: var(--bg-page);
    line-height: 1.5;
}

img {
    max-width: 100%;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.2s;
}

/* Typography */
h1,
h2,
h3,
h4 {
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

h1 {
    font-size: 3.5rem;
}

h2 {
    font-size: 2.5rem;
}

h3 {
    font-size: 1.5rem;
}

@media (max-width: 768px) {
    h1 {
        font-size: 2.5rem;
    }

    h2 {
        font-size: 2rem;
    }
}

/* Layout */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    height: var(--header-height);
    position: sticky;
    top: 0;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    z-index: 100;
    border-bottom: 1px solid #eaecf0;
}

header .container {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Language Switcher */
.lang-switch {
    display: flex;
    gap: 8px;
    background: #f2f4f7;
    padding: 4px;
    border-radius: 99px;
}

.lang-switch a {
    padding: 6px 12px;
    border-radius: 99px;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-muted);
}

.lang-switch a.active {
    background: #fff;
    color: var(--text-main);
    box-shadow: 0 1px 2px rgba(16, 24, 40, 0.05);
}

/* Hero Section */
.hero {
    padding: 80px 0;
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 60px;
    overflow: hidden;
}

.hero-content {
    max-width: 560px;
}

.hero h1 {
    margin-bottom: 24px;
    background: linear-gradient(135deg, #101828 0%, #475467 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 40px;
}

.store-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}

.btn-store {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: #000;
    color: #fff;
    padding: 10px 20px;
    border-radius: 12px;
    transition: transform 0.2s;
}

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

.btn-store svg {
    width: 24px;
    height: 24px;
}

.hero-image {
    position: relative;
}

.hero-image img {
    border-radius: 24px;
    box-shadow: 0 32px 64px -12px rgba(16, 24, 40, 0.14);
    transform: rotate(-3deg);
    border: 4px solid #fff;
    max-height: 600px;
}

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

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
    margin-top: 60px;
}

.feature-card {
    background: #fff;
    padding: 32px;
    border-radius: 20px;
    box-shadow: 0 4px 6px -2px rgba(16, 24, 40, 0.03);
    transition: transform 0.2s;
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-icon {
    width: 48px;
    height: 48px;
    background: #eff8ff;
    color: var(--primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
}

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

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

/* Corporate Section */
.corporate {
    padding: 100px 0;
    background: #101828;
    color: #fff;
    text-align: center;
}

.corporate h2 {
    margin-bottom: 24px;
}

.corporate p {
    color: #98a2b3;
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto 40px;
}

/* Footer */
footer {
    padding: 60px 0;
    border-top: 1px solid #eaecf0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 32px;
}

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

.footer-links a {
    color: var(--text-muted);
    font-size: 0.875rem;
}

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

@media (max-width: 768px) {
    .hero {
        grid-template-columns: 1fr;
        text-align: center;
        padding: 40px 0;
    }

    .hero-content {
        margin: 0 auto;
    }

    .store-buttons {
        justify-content: center;
    }

    .hero-image {
        display: block;
        margin: 40px auto 0;
        max-width: 80%;
    }

    .hero-image img {
        max-height: 500px;
    }
}