:root {
    --primary: #C1272D;
    --secondary: #3a3a3a;
    --bg-dark: #0f0f0f;
    --bg-card: #1a1a1a;
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --border: #2a2a2a;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Inter', sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

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

/* Header */
header {
    padding: 32px 0;
    border-bottom: 1px solid var(--border);
}

.logo {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    height: 40px;
    width: auto;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    position: relative;
}

/* Navigation */
.main-nav {
    display: flex;
    align-items: center;
    gap: 32px;
    margin: 0 auto;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    transition: color 0.2s;
    padding: 8px 0;
    position: relative;
}

.nav-link:hover {
    color: var(--text-primary);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

/* Header Right Section */
.header-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.btn-login {
    color: white;
    background: var(--primary);
    padding: 10px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.btn-login:hover {
    background: #a82329;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(193, 39, 45, 0.4);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all 0.3s ease;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

.lang-switcher {
    display: flex;
    align-items: center;
    gap: 8px;
}

.lang-switcher a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    transition: color 0.2s;
    padding: 6px 12px;
    border-radius: 6px;
}

.lang-switcher a:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.lang-switcher a.active {
    color: var(--primary);
}

.lang-switcher .separator {
    color: var(--border);
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    text-align: center;
    position: relative;
}

.beta-badge {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary), #e63946);
    color: white;
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 24px;
    box-shadow: 0 4px 20px rgba(193, 39, 45, 0.3);
}

h1 {
    font-size: 64px;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    background: linear-gradient(135deg, var(--text-primary), var(--text-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    font-size: 22px;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto 48px;
    line-height: 1.7;
}

/* Features Grid */
.features {
    padding: 80px 0;
    background: var(--bg-card);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.section-title {
    text-align: center;
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 60px;
}

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

.feature-card {
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 40px 32px;
    transition: all 0.3s ease;
}

.feature-card:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(193, 39, 45, 0.15);
}

.feature-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--primary), #e63946);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    margin-bottom: 24px;
}

.feature-card h3 {
    font-size: 22px;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Beta Signup Section */
.beta-signup {
    padding: 100px 0;
}

.signup-container {
    max-width: 600px;
    margin: 0 auto;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 48px;
    text-align: center;
}

.signup-container h2 {
    font-size: 36px;
    margin-bottom: 16px;
}

.signup-container .description {
    color: var(--text-secondary);
    margin-bottom: 32px;
    font-size: 16px;
}

.form-group {
    margin-bottom: 20px;
    text-align: left;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    font-size: 14px;
    color: var(--text-secondary);
}

.form-group input,
.form-group textarea {
    width: 100%;
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 14px 16px;
    color: var(--text-primary);
    font-size: 15px;
    transition: all 0.2s;
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(193, 39, 45, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.btn {
    width: 100%;
    background: linear-gradient(135deg, var(--primary), #e63946);
    color: white;
    border: none;
    border-radius: 12px;
    padding: 16px 32px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 12px;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(193, 39, 45, 0.4);
}

.success-message {
    background: linear-gradient(135deg, #22c55e, #16a34a);
    border-radius: 12px;
    padding: 24px;
    text-align: center;
}

.success-message h3 {
    font-size: 24px;
    margin-bottom: 8px;
}

.success-message p {
    color: rgba(255, 255, 255, 0.9);
}

.error-message {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: 8px;
    padding: 12px;
    color: #ef4444;
    margin-bottom: 20px;
    font-size: 14px;
}

/* Footer */
footer {
    padding: 60px 0;
    text-align: center;
    border-top: 1px solid var(--border);
    color: var(--text-secondary);
    font-size: 14px;
}

footer a {
    color: var(--primary);
    text-decoration: none;
    transition: opacity 0.2s;
}

footer a:hover {
    opacity: 0.8;
}

/* Responsive */
@media (max-width: 768px) {
    h1 {
        font-size: 42px;
    }
    
    .subtitle {
        font-size: 18px;
    }
    
    .hero {
        padding: 80px 0 60px;
    }
    
    .features {
        padding: 60px 0;
    }
    
    .section-title {
        font-size: 32px;
    }
    
    .signup-container {
        padding: 32px 24px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    header .container {
        flex-wrap: wrap;
        gap: 12px;
    }
    
    .logo {
        flex: 0 0 auto;
    }
    
    .main-nav {
        order: 3;
        width: 100%;
    }
    
    .header-right {
        flex: 1;
        justify-content: flex-end;
    }
    
    .lang-switcher {
        gap: 4px;
    }
    
    .lang-switcher a {
        padding: 4px 8px;
        font-size: 12px;
    }
    
    /* Mobile Navigation */
    .main-nav {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: rgba(20, 20, 20, 0.98);
        backdrop-filter: blur(10px);
        flex-direction: column;
        gap: 0;
        padding: 24px;
        opacity: 0;
        visibility: hidden;
        transform: translateY(-20px);
        transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s ease;
        box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
        z-index: 999;
    }
    
    .main-nav.active {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }
    
    .nav-link {
        padding: 16px 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .nav-link:last-of-type {
        border-bottom: none;
    }
    
    .nav-link::after {
        display: none;
    }
    
    .header-right {
        gap: 12px;
    }
    
    .btn-login {
        padding: 8px 16px;
        font-size: 13px;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
}