/* ============================================
   LIGHT MODE ADMIN PANEL LOGIN STYLES
   MINIMAL DESIGN
   ============================================ */

:root {
    --primary-color: #4f46e5;
    --bg-light: #ffffff;
    --bg-alt: #f9fafb;
    --text-dark: #1f2937;
    --text-gray: #6b7280;
    --border-gray: #e5e7eb;
    --danger-color: #dc2626;
}

* {
    box-sizing: border-box;
}

html,
body {
    height: 100%;
    margin: 0;
    padding: 0;
}

body {
    background: var(--bg-alt);
    color: var(--text-dark);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 14px;
    line-height: 1.5;
}

.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 16px;
}

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

.login-card {
    background: var(--bg-light);
    border: 1px solid var(--border-gray);
    border-radius: 8px;
    padding: 32px;
}

.login-title {
    font-size: 24px;
    font-weight: 700;
    margin: 0 0 24px 0;
    color: var(--text-dark);
    text-align: center;
}

.alert {
    padding: 12px;
    margin-bottom: 16px;
    border-radius: 6px;
    font-size: 13px;
    border: 1px solid #fecaca;
    background: #fee2e2;
    color: #991b1b;
}

.alert.d-none {
    display: none;
}

.form-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--text-dark);
}

.form-control {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border-gray);
    border-radius: 6px;
    font-size: 14px;
    background: var(--bg-light);
    color: var(--text-dark);
    height: auto;
    line-height: 1.5;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(79, 70, 229, 0.1);
}

.form-control::placeholder {
    color: var(--text-gray);
}

.password-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.password-input-wrapper .form-control {
    padding-right: 40px;
    flex: 1;
}

.btn-toggle-password {
    position: absolute;
    right: 12px;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-gray);
    font-size: 14px;
    padding: 4px 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-toggle-password:hover {
    color: var(--primary-color);
}

.btn-toggle-password:focus {
    outline: none;
}

.input-group {
    display: flex;
}

.input-group .form-control {
    border-right: none;
    flex: 1;
}

.input-group .btn {
    border-radius: 0 6px 6px 0;
    border-left: none;
    padding: 10px 12px;
    background: var(--bg-light);
    border: 1px solid var(--border-gray);
    color: var(--text-gray);
    cursor: pointer;
    font-size: 14px;
    line-height: 1.5;
    min-width: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.input-group .btn:hover {
    color: var(--primary-color);
}

.input-group .btn:focus {
    outline: none;
    border-color: var(--primary-color);
}

.invalid-feedback {
    display: none;
    font-size: 12px;
    color: var(--danger-color);
    margin-top: 4px;
}

.invalid-feedback.d-block {
    display: block;
}

.form-check {
    margin: 16px 0;
}

.form-check-input {
    width: 18px;
    height: 18px;
    margin-top: 2px;
    cursor: pointer;
}

.form-check-label {
    font-size: 13px;
    color: var(--text-dark);
    cursor: pointer;
    margin-left: 6px;
}

.mb-2 {
    margin-bottom: 16px;
}

.mb-3 {
    margin-bottom: 24px;
}

.mt-3 {
    margin-top: 24px;
}

.mt-2 {
    margin-top: 16px;
}

.btn {
    padding: 10px 16px;
    border-radius: 6px;
    border: 1px solid transparent;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    width: 100%;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.btn-primary:hover {
    background: #4338ca;
}

.btn-primary:active {
    background: #3730a3;
}

.btn-outline-secondary {
    background: var(--bg-light);
    color: var(--text-gray);
    border-color: var(--border-gray);
}

.btn-outline-secondary:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.w-100 {
    width: 100%;
}

.d-none {
    display: none;
}

.d-block {
    display: block;
}

.text-center {
    text-align: center;
}

.text-decoration-none {
    text-decoration: none;
    color: var(--primary-color);
    font-size: 13px;
}

.text-decoration-none:hover {
    text-decoration: underline;
}

#loadingSpinner {
    text-align: center;
    font-size: 13px;
    color: var(--text-gray);
}

/* Responsive */
@media (max-width: 480px) {
    .login-card {
        padding: 24px;
    }

    .login-title {
        font-size: 20px;
        margin-bottom: 20px;
    }

    .form-control {
        font-size: 16px;
    }
}