:root {
    --bg-dark: #0F172A;
    --bg-surface: #1E293B;
    --primary: #F97316;
    --primary-hover: #ea580c;
    --secondary: #14B8A6;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
}

body {
    margin: 0;
    padding: 0;
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: 'Inter', sans-serif;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a {
    color: var(--secondary);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: #0d9488;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background-color: rgba(30, 41, 59, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary);
}

.navbar-brand img {
    height: 40px;
}

.btn {
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all 0.2s ease;
    text-transform: uppercase;
    font-size: 0.9rem;
}

.btn-primary {
    background-color: var(--primary);
    color: #fff;
    box-shadow: 0 4px 15px rgba(249, 115, 22, 0.3);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(249, 115, 22, 0.4);
}

.btn-secondary {
    background-color: transparent;
    border: 2px solid var(--secondary);
    color: var(--secondary);
}

.btn-secondary:hover {
    background-color: var(--secondary);
    color: #fff;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    flex: 1;
}

.card {
    background-color: var(--bg-surface);
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    border: 1px solid rgba(255,255,255,0.05);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-muted);
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    background-color: rgba(15, 23, 42, 0.5);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 8px;
    color: white;
    font-size: 1rem;
    transition: border-color 0.2s;
    box-sizing: border-box;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
}

.text-center { text-align: center; }
.mt-4 { margin-top: 1.5rem; }
.mb-4 { margin-bottom: 1.5rem; }

.hero-title { font-size: 4rem; }
.responsive-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; }
.gap-1 { gap: 1rem !important; }

@media (max-width: 768px) {
    .navbar {
        flex-direction: column;
        gap: 1rem;
        padding: 1rem;
    }
    .container {
        padding: 1rem;
    }
    .hero-title {
        font-size: 2.5rem !important;
    }
    .hero-section {
        padding: 2rem 1rem !important;
        margin-top: 2rem !important;
    }
    .responsive-grid {
        grid-template-columns: 1fr !important;
    }
    .auth-card {
        padding: 2rem !important;
    }
    .features-section {
        grid-template-columns: 1fr !important;
    }
}