/* ELM Platform Login — Dark Theme */
/* Matches maintenance page: bg #0f172a, text #e2e8f0 */

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: #0f172a;
    color: #e2e8f0;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-container {
    width: 100%;
    padding: 1rem;
}

.login-card {
    background: #1e293b;
    border: 1px solid #334155;
    border-radius: 0.75rem;
    padding: 2.5rem 2rem;
    max-width: 400px;
    margin: 0 auto;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
}

.login-title {
    font-size: 1.75rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 0.25rem;
    color: #f1f5f9;
}

.login-subtitle {
    text-align: center;
    color: #94a3b8;
    font-size: 0.9rem;
    margin-bottom: 2rem;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: #cbd5e1;
    margin-bottom: 0.375rem;
}

.form-group input {
    width: 100%;
    padding: 0.625rem 0.75rem;
    font-size: 0.95rem;
    font-family: inherit;
    color: #e2e8f0;
    background: #0f172a;
    border: 1px solid #475569;
    border-radius: 0.5rem;
    outline: none;
    transition: border-color 0.15s ease;
}

.form-group input::placeholder {
    color: #64748b;
}

.form-group input:focus {
    border-color: #3b82f6;
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.25);
}

.error-message {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #fca5a5;
    font-size: 0.85rem;
    padding: 0.625rem 0.75rem;
    border-radius: 0.5rem;
    margin-bottom: 1.25rem;
}

.submit-btn {
    display: block;
    width: 100%;
    padding: 0.75rem;
    font-size: 0.95rem;
    font-weight: 600;
    font-family: inherit;
    color: #fff;
    background: #3b82f6;
    border: none;
    border-radius: 0.5rem;
    cursor: pointer;
    transition: background-color 0.15s ease;
}

.submit-btn:hover {
    background: #2563eb;
}

.submit-btn:active {
    background: #1d4ed8;
}

.submit-btn:disabled {
    background: #475569;
    cursor: not-allowed;
    opacity: 0.7;
}

/* Responsive */
@media (max-width: 480px) {
    .login-card {
        padding: 2rem 1.25rem;
    }

    .login-title {
        font-size: 1.5rem;
    }
}