@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    --bg-color: #0f172a;
    --card-bg: rgba(30, 41, 59, 0.7);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-color: #8b5cf6;
    --glass-border: rgba(255, 255, 255, 0.1);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    background-image: 
        radial-gradient(at 0% 0%, hsla(253,16%,7%,1) 0, transparent 50%), 
        radial-gradient(at 50% 0%, hsla(225,39%,30%,1) 0, transparent 50%), 
        radial-gradient(at 100% 0%, hsla(339,49%,30%,1) 0, transparent 50%);
    color: var(--text-primary);
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.login-card {
    background: var(--card-bg);
    border: 1px solid var(--glass-border);
    padding: 2.5rem;
    border-radius: 1rem;
    width: 100%;
    max-width: 400px;
    backdrop-filter: blur(12px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-header h2 {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.login-header p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.form-group input {
    width: 100%;
    padding: 0.75rem;
    border-radius: 0.5rem;
    border: 1px solid var(--glass-border);
    background: rgba(15, 23, 42, 0.5);
    color: var(--text-primary);
    font-family: inherit;
    transition: all 0.3s ease;
}

.form-group input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(139, 92, 246, 0.2);
}

.btn-login {
    width: 100%;
    padding: 0.75rem;
    background: linear-gradient(135deg, #8b5cf6 0%, #6366f1 100%);
    color: white;
    border: none;
    border-radius: 0.5rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s ease;
}

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

.alert {
    padding: 0.75rem;
    border-radius: 0.5rem;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
    text-align: center;
}

.alert-error {
    background: rgba(220, 38, 38, 0.2);
    border: 1px solid rgba(220, 38, 38, 0.4);
    color: #fca5a5;
}