:root {
    --primary-color: #572364;
    --primary-dark: #42214b;
    --primary-light: #7a4a8a;
    --hover-color: #f0f4ff;
    --light-bg: #f8fafc;
    --text-dark: #2d3748;
    --text-light: #718096;
    --border-color: #e2e8f0;
}

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

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.login-container {
    width: 100%;
    max-width: 380px;
}

.login-card {
    background: white;
    border-radius: 16px;
    padding: 2.5rem 2rem;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
}

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

.logo-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-dark);
    letter-spacing: -0.5px;
}

.logo .text-muted {
    font-size: 0.85rem;
}

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

.form-label {
    display: block;
    color: var(--text-dark);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 0.375rem;
}

.input-wrapper {
    position: relative;
}

.form-control {
    width: 100%;
    padding: 0.75rem 0.875rem;
    padding-left: 2.75rem;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    font-size: 0.9375rem;
    transition: all 0.2s;
    background-color: white;
    line-height: 1.5;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(87, 35, 100, 0.1);
    outline: none;
}

.form-control:focus+.input-icon {
    color: var(--primary-color);
}

.input-icon {
    position: absolute;
    left: 0.875rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-light);
    font-size: 1rem;
    transition: color 0.2s;
}

.password-toggle {
    position: absolute;
    right: 0.875rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-light);
    cursor: pointer;
    padding: 0;
    font-size: 1rem;
    transition: color 0.2s;
}

.password-toggle:hover {
    color: var(--text-dark);
}

.btn-login {
    width: 100%;
    padding: 0.8rem;
    background: var(--primary-color);
    border: none;
    border-radius: 10px;
    color: white;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    margin-top: 0.5rem;
}

.btn-login:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(87, 35, 100, 0.3);
}

.btn-login:active {
    transform: translateY(0);
}

.btn-login:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.alert {
    padding: 0.75rem 1rem;
    border-radius: 10px;
    margin-bottom: 1.25rem;
    font-size: 0.875rem;
    display: none;
    align-items: center;
    gap: 0.5rem;
}

.alert.show {
    display: flex;
}

.alert-danger {
    background-color: #fee;
    border: 1px solid #fcc;
    color: #c33;
}

.alert-success {
    background-color: #e8f8ef;
    border: 1px solid #c3e6cb;
    color: #10b981;
}

.login-footer {
    margin-top: 2rem;
    text-align: center;
    font-size: 0.75rem;
    color: var(--text-light);
}

.login-footer p {
    margin: 0;
}

/* Responsive */
@media (max-width: 480px) {
    .login-card {
        padding: 1.75rem 1.25rem;
        border: none;
        box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
    }

    .logo-icon {
        font-size: 2rem;
    }

    .logo-text {
        font-size: 1.25rem;
    }
}

@media (prefers-color-scheme: dark) {
    body {
        background: #1a1a2e;
    }

    .login-card {
        background: #2d3748;
        border-color: #4a5568;
    }

    .logo-text {
        color: #e2e8f0;
    }

    .form-label {
        color: #e2e8f0;
    }

    .form-control {
        background-color: #374151;
        border-color: #4a5568;
        color: #e2e8f0;
    }

    .form-control:focus {
        border-color: var(--primary-color);
        background-color: #374151;
    }

    .input-icon {
        color: #a0aec0;
    }

    .alert-danger {
        background-color: #4c1d1d;
        border-color: #742a2a;
        color: #fc8181;
    }

    .login-footer {
        color: #a0aec0;
    }
}