:root {
    --bg-color: #0B0C1E;
    --text-primary: #FFFFFF;
    --text-secondary: #A0A0C0;
    --accent-cyan: #00F2FF;
    --accent-purple: #9D00FF;
    --accent-gradient: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --font-main: 'Inter', system-ui, -apple-system, sans-serif;
    --spacing: 2rem;
}

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

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

/* Background effects */
body::before {
    content: '';
    position: fixed;
    top: -10%;
    left: -10%;
    width: 120%;
    height: 120%;
    background: radial-gradient(circle at 20% 30%, rgba(0, 242, 255, 0.05) 0%, transparent 40%),
        radial-gradient(circle at 80% 70%, rgba(157, 0, 255, 0.05) 0%, transparent 40%);
    z-index: -1;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing);
}

header {
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--glass-border);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-weight: 700;
    font-size: 1.5rem;
    text-decoration: none;
    color: var(--text-primary);
}

.logo img {
    height: 40px;
    border-radius: 8px;
}

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

.nav-links a {
    text-decoration: none;
    color: var(--text-secondary);
    transition: color 0.3s;
    font-size: 0.9rem;
}

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

.lang-selector-container {
    margin-left: 1rem;
}

#lang-selector {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    padding: 0.4rem 0.8rem;
    border-radius: 8px;
    font-size: 0.8rem;
    cursor: pointer;
    outline: none;
    backdrop-filter: blur(10px);
}

#lang-selector option {
    background: var(--bg-color);
}

/* Hero Section */
.hero {
    padding: 100px 0;
    text-align: left;
    /* Aligned left as requested */
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    /* Aligned left as requested */
}

.hero h1 {
    font-size: clamp(2.5rem, 8vw, 4.5rem);
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 1.5rem;
    font-weight: 800;
    line-height: 1.1;
    max-width: 800px;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin-bottom: 3rem;
}

.cta-button {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: var(--accent-gradient);
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 700;
    font-size: 1.1rem;
    transition: transform 0.3s, box-shadow 0.3s;
    box-shadow: 0 10px 30px rgba(0, 242, 255, 0.3);
}

.cta-button:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 242, 255, 0.5);
}

/* Screenshots / App Content */
.features {
    padding: 100px 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 4rem;
    align-items: start;
}

.feature-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 24px;
    backdrop-filter: blur(10px);
}

.feature-img {
    width: 100%;
    border-radius: 16px;
    margin-bottom: 24px;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--accent-cyan);
}

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

/* Footer style */
footer {
    padding: 60px 0;
    border-top: 1px solid var(--glass-border);
    margin-top: 60px;
    text-align: center;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 24px;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
}

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

.copyright {
    color: rgba(255, 255, 255, 0.3);
    font-size: 0.8rem;
}

/* Mobile frames or specific screenshot sizing */
.phone-screenshot {
    max-width: 300px;
    margin: 0 auto;
    display: block;
    height: auto;
    border: 8px solid #222;
    border-radius: 36px;
}