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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background:
        radial-gradient(1200px 800px at 80% -10%, rgba(0, 181, 226, 0.08), transparent 40%),
        radial-gradient(900px 600px at -10% 30%, rgba(0, 59, 115, 0.06), transparent 45%),
        #f9fafb;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.login-container {
    background: white;
    border-radius: 16px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    padding: 40px;
    width: 100%;
    max-width: 400px;
    text-align: center;
}

.logo {
    color: #003b73;
    font-size: 32px;
    font-weight: bold;
    margin-bottom: 8px;
}

.subtitle {
    color: #6b7280;
    font-size: 16px;
    margin-bottom: 32px;
}

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

.form-label {
    display: block;
    color: #374151;
    font-weight: 500;
    margin-bottom: 6px;
}

.form-input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e5e7eb;
    border-radius: 8px;
    font-size: 16px;
    transition: border-color 0.2s;
}

.form-input:focus {
    outline: none;
    border-color: #00b5e2;
    box-shadow: 0 0 0 3px rgba(0, 181, 226, 0.15);
}

.login-button {
    width: 100%;
    background: linear-gradient(135deg, #00b5e2, #003b73 70%);
    color: white;
    border: none;
    padding: 14px;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.login-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0, 181, 226, 0.28);
}

.error-message {
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: #dc2626;
    padding: 12px;
    border-radius: 8px;
    margin-bottom: 20px;
}

.info-text {
    color: #6b7280;
    font-size: 14px;
    margin-top: 20px;
}

@media (prefers-color-scheme: dark) {
    body {
        background:
            radial-gradient(1200px 800px at 80% -10%, rgba(0, 181, 226, 0.12), transparent 40%),
            radial-gradient(900px 600px at -10% 30%, rgba(0, 59, 115, 0.2), transparent 45%),
            #0a0f1a;
    }

    .login-container {
        background: #1a1f2e;
        color: #f9fafb;
    }

    .logo {
        color: #57d4f0;
    }

    .subtitle,
    .info-text,
    .form-label {
        color: #c5cedb;
    }

    .form-input {
        background: #23293a;
        border-color: #2a2f3e;
        color: #f9fafb;
    }
}