/**
 * ============================================
 * Acumen - Client Login Page Styles
 * ============================================
 */

/* ============================================
   CSS Variables
   ============================================ */
:root {
    --primary: #3b82f6;
    --primary-dark: #2563eb;
    --primary-light: #60a5fa;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;

    --gray-900: #0f172a;
    --gray-800: #1e293b;
    --gray-700: #334155;
    --gray-600: #475569;
    --gray-500: #64748b;
    --gray-400: #94a3b8;
    --gray-300: #cbd5e1;
    --gray-200: #e2e8f0;
    --gray-100: #f1f5f9;
    --gray-50: #f8fafc;
    --white: #ffffff;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

    --font-ar: 'Cairo', sans-serif;
    --font-en: 'Inter', sans-serif;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: var(--font-ar);
    background: linear-gradient(145deg, #e0e7ff 0%, #f0f9ff 40%, #f8fafc 100%);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

html[lang="en"] body {
    font-family: var(--font-en);
}

/* ============================================
   Language Toggle
   ============================================ */
.lang-toggle-wrapper {
    position: fixed;
    top: 1.5rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 100;
}

.language-toggle {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    background: var(--white);
    padding: 0.4rem 0.75rem;
    border-radius: 50px;
    box-shadow: var(--shadow-md);
}

.lang-btn {
    background: transparent;
    border: none;
    padding: 0.35rem 0.75rem;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--gray-500);
    cursor: pointer;
    transition: var(--transition);
}

.lang-btn.active {
    background: var(--primary);
    color: var(--white);
    box-shadow: var(--shadow-sm);
}

.lang-btn:not(.active):hover {
    background: var(--gray-100);
    color: var(--gray-800);
}

.separator {
    color: var(--gray-300);
    font-weight: 300;
    font-size: 0.85rem;
}

/* ============================================
   Login Container
   ============================================ */
.login-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 5rem 1.5rem 2rem;
}

/* ============================================
   Login Card
   ============================================ */
.login-card {
    background: var(--white);
    border-radius: 1.25rem;
    padding: 2.5rem 2rem;
    width: 100%;
    max-width: 440px;
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--gray-200);
    animation: slideUp 0.5s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================
   Header
   ============================================ */
.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.logo-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.25rem;
    box-shadow: var(--shadow-md);
}

.logo-icon i {
    font-size: 2rem;
    color: var(--white);
}

.login-title {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--gray-800);
    margin-bottom: 0.5rem;
}

.login-subtitle {
    font-size: 0.9rem;
    color: var(--gray-500);
    line-height: 1.5;
    margin: 0;
}

/* ============================================
   Alerts
   ============================================ */
.alert {
    border-radius: 0.75rem;
    padding: 0.85rem 1rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 1.25rem;
    border: none;
}

.alert-danger {
    background: #fef2f2;
    color: var(--danger);
}

.alert-success {
    background: #f0fdf4;
    color: var(--success);
}

.alert i {
    font-size: 1.1rem;
    flex-shrink: 0;
}

/* ============================================
   Form
   ============================================ */
.form-group {
    margin-bottom: 1.25rem;
}

.form-label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 0.5rem;
}

.input-wrapper {
    position: relative;
}

.input-icon {
    position: absolute;
    top: 50%;
    right: 1rem;
    transform: translateY(-50%);
    color: var(--gray-400);
    font-size: 1.1rem;
    pointer-events: none;
    transition: var(--transition);
}

[dir="ltr"] .input-icon {
    right: auto;
    left: 1rem;
}

.form-control {
    width: 100%;
    padding: 0.85rem 1rem 0.85rem 2.75rem;
    padding-right: 2.75rem;
    border: 2px solid var(--gray-200);
    border-radius: 0.75rem;
    font-size: 0.95rem;
    font-family: inherit;
    color: var(--gray-800);
    background: var(--gray-50);
    transition: var(--transition);
    outline: none;
}

[dir="ltr"] .form-control {
    padding: 0.85rem 2.75rem 0.85rem 2.75rem;
    padding-left: 2.75rem;
}

.form-control:focus {
    border-color: var(--primary);
    background: var(--white);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

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

.form-control.is-invalid {
    border-color: var(--danger);
}

.form-control.is-invalid:focus {
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15);
}

.invalid-feedback {
    display: none;
    font-size: 0.8rem;
    color: var(--danger);
    margin-top: 0.4rem;
    padding-right: 0.25rem;
}

[dir="ltr"] .invalid-feedback {
    padding-right: 0;
    padding-left: 0.25rem;
}

.form-control.is-invalid~.invalid-feedback {
    display: block;
}

/* Toggle Password */
.toggle-password {
    position: absolute;
    top: 50%;
    left: 1rem;
    transform: translateY(-50%);
    background: transparent;
    border: none;
    color: var(--gray-400);
    cursor: pointer;
    padding: 0;
    font-size: 1.1rem;
    transition: var(--transition);
}

[dir="ltr"] .toggle-password {
    left: auto;
    right: 1rem;
}

.toggle-password:hover {
    color: var(--gray-700);
}

/* ============================================
   Extras (Remember + Forgot)
   ============================================ */
.form-extras {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.remember-me {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.form-check-input {
    width: 1.1rem;
    height: 1.1rem;
    border: 2px solid var(--gray-300);
    border-radius: 0.3rem;
    cursor: pointer;
    margin: 0;
}

.form-check-input:checked {
    background-color: var(--primary);
    border-color: var(--primary);
}

.form-check-label {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--gray-600);
    cursor: pointer;
}

.forgot-link {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition);
}

.forgot-link:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

/* ============================================
   Login Button
   ============================================ */
.btn-login {
    width: 100%;
    padding: 0.9rem;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--white);
    border: none;
    border-radius: 0.75rem;
    font-size: 1rem;
    font-weight: 700;
    font-family: inherit;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    box-shadow: var(--shadow-md);
}

.btn-login:hover:not(:disabled) {
    background: linear-gradient(135deg, var(--primary-dark), #1d4ed8);
    box-shadow: var(--shadow-lg);
    transform: translateY(-1px);
}

.btn-login:active:not(:disabled) {
    transform: translateY(0);
}

.btn-login:disabled {
    opacity: 0.85;
    cursor: not-allowed;
}

.btn-loader {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* ============================================
   Back Link
   ============================================ */
.back-link-wrapper {
    text-align: center;
    margin-top: 1.5rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--gray-200);
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--gray-500);
    text-decoration: none;
    transition: var(--transition);
}

.back-link:hover {
    color: var(--primary);
}

[dir="ltr"] .back-link i {
    transform: scaleX(-1);
}

/* ============================================
   Footer
   ============================================ */
.login-footer {
    color: var(--gray-400);
    font-size: 0.8rem;
    margin-top: 2rem;
    text-align: center;
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 480px) {
    .login-card {
        padding: 2rem 1.5rem;
    }

    .login-title {
        font-size: 1.3rem;
    }

    .form-extras {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }
}