/* ============================================
   Modern Login Page Design - Enhanced Version
   .NET Core MVC - Pure CSS (No Inline Styles)
   RTL Support Included - RESPONSIVE FIXED
   ============================================ */

/* ============================================
   CSS Variables & Root Configuration
   ============================================ */
:root {
    /* Color Palette */
    --primary-color: #4f46e5;
    --primary-hover: #4338ca;
    --primary-gradient-start: #667eea;
    --primary-gradient-end: #764ba2;

    --secondary-color: #ec4899;
    --accent-color: #06b6d4;

    --background-light: #f8fafc;
    --background-gradient-start: #f0f9ff;
    --background-gradient-end: #fce7f3;

    --card-background: rgba(255, 255, 255, 0.95);
    --card-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
    --card-shadow-hover: 0 25px 80px rgba(0, 0, 0, 0.15);

    --input-border: #e2e8f0;
    --input-focus: #4f46e5;
    --input-background: #ffffff;

    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-light: #94a3b8;

    --success-color: #10b981;
    --error-color: #ef4444;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;

    /* Transitions */
    --transition-fast: 0.2s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
}

/* ============================================
   Base Styles
   ============================================ */
*,
*::before,
*::after {
    box-sizing: border-box;
}

body {
    font-family: 'Cairo', 'Segoe UI', 'Noto Kufi Arabic', Arial, sans-serif;
    direction: rtl;
    margin: 0;
    padding: 0;
    min-height: 100vh;
    background: linear-gradient(135deg, var(--background-gradient-start) 0%, var(--background-gradient-end) 100%);
    background-attachment: fixed;
    overflow-x: hidden;
}

.login-screen {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Animated background pattern */
.login-screen::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        radial-gradient(circle at 20% 50%, rgba(99, 102, 241, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(236, 72, 153, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(6, 182, 212, 0.08) 0%, transparent 50%);
    animation: backgroundShift 15s ease-in-out infinite;
    pointer-events: none;
}

@keyframes backgroundShift {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.7;
    }
}

/* ============================================
   Container & Layout
   ============================================ */
.container-fluid {
    width: 100%;
    max-width: 100%;
    padding: var(--spacing-lg);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.row {
    width: 100%;
    max-width: 700px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.col-md-12 {
    width: 100%;
    padding: 0;
}

/* ============================================
   Login Box - Modern Card Design
   ============================================ */
.login-box {
    width: 100%;
    max-width: 600px;
    margin: 0 auto;
    padding: var(--spacing-2xl) var(--spacing-xl);
    background: var(--card-background);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: var(--radius-xl);
    box-shadow: var(--card-shadow);
    border: 1px solid rgba(255, 255, 255, 0.8);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    animation: slideIn 0.6s ease-out;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

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

.login-box:hover {
    transform: translateY(-5px);
    box-shadow: var(--card-shadow-hover);
}

/* ============================================
   Login Content - Header & Branding
   ============================================ */
.login-content {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.login-content h3 {
    color: var(--text-primary);
    font-size: 1.75rem;
    font-weight: 700;
    margin: var(--spacing-lg) 0;
    letter-spacing: -0.025em;
}

.login-content img {
    height: 100px;
    max-width: 200px;
    object-fit: contain;
    border-radius: var(--radius-md);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transition: transform var(--transition-normal);
}

.login-content img:hover {
    transform: scale(1.05);
}

/* ============================================
   Form Styles
   ============================================ */
.login-form {
    width: 100%;
}

.form-group {
    margin-bottom: var(--spacing-lg);
    position: relative;
}

/* ============================================
   Labels
   ============================================ */
.form-group label {
    display: block;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: var(--spacing-xs);
    transition: color var(--transition-fast);
}

.form-group:focus-within label {
    color: var(--input-focus);
}

/* ============================================
   Input Fields & Select Dropdowns
   ============================================ */
.form-control,
.form-control.select2 {
    width: 100%;
    padding: 0.875rem 1rem;
    font-size: 1rem;
    line-height: 1.5;
    color: var(--text-primary);
    background-color: var(--input-background);
    background-clip: padding-box;
    border: 2px solid var(--input-border);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    font-family: inherit;
    outline: none;
}

.form-control::placeholder {
    color: var(--text-light);
    opacity: 0.7;
}

.form-control:hover {
    border-color: #cbd5e1;
}

.form-control:focus {
    border-color: var(--input-focus);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
    background-color: #ffffff;
}

.form-control:disabled {
    background-color: #f1f5f9;
    cursor: not-allowed;
    opacity: 0.6;
}

/* Select dropdown specific styles */
select.form-control {
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748b' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: left 1rem center;
    padding-left: 2.5rem;
}

/* ============================================
   Buttons
   ============================================ */
.login-btn-box {
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
}

.btn {
    display: inline-block;
    font-weight: 600;
    text-align: center;
    white-space: nowrap;
    vertical-align: middle;
    user-select: none;
    border: none;
    padding: 0.875rem 1.5rem;
    font-size: 1rem;
    line-height: 1.5;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    cursor: pointer;
    text-decoration: none;
    font-family: inherit;
}

.btn:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.2);
}

/* Primary button with gradient */
.ls-dark-btn,
.btn-primary {
    color: #ffffff;
    background: linear-gradient(135deg, var(--primary-gradient-start) 0%, var(--primary-gradient-end) 100%);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
    position: relative;
    overflow: hidden;
}

.ls-dark-btn::before,
.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--primary-hover) 0%, var(--primary-color) 100%);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.ls-dark-btn:hover::before,
.btn-primary:hover::before {
    opacity: 1;
}

.ls-dark-btn:hover,
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(102, 126, 234, 0.5);
}

.ls-dark-btn:active,
.btn-primary:active {
    transform: translateY(0);
}

/* Button text should be on top of pseudo-element */
.ls-dark-btn,
.btn-primary {
    position: relative;
}

.ls-dark-btn>*,
.btn-primary>* {
    position: relative;
    z-index: 1;
}

/* Rounded buttons */
.btn-round {
    border-radius: 50px;
}

/* Full width buttons */
.col-md-12.btn,
.col-sm-12.btn,
.col-xs-12.btn {
    width: 100%;
}

/* Button loading state */
.ladda-button {
    position: relative;
}

.ladda-button[data-loading] {
    pointer-events: none;
    opacity: 0.8;
}

/* ============================================
   Footer / Copyright
   ============================================ */
.copy-right {
    position: fixed;
    bottom: var(--spacing-lg);
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin: 0;
    padding: var(--spacing-sm) var(--spacing-lg);
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border-radius: 50px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.copy-right span.footer-year {
    font-weight: 600;
    color: var(--text-primary);
}

/* ============================================
   Responsive Design
   ============================================ */

/* Large desktops (1200px and up) */
@media (min-width: 1200px) {
    .row {
        max-width: 700px;
    }

    .login-box {
        max-width: 640px;
        padding: var(--spacing-2xl) 2.5rem;
    }
}

/* Tablets (768px to 991px) */
@media (max-width: 991px) {
    .container-fluid {
        padding: var(--spacing-md);
    }

    .row {
        max-width: 620px;
    }

    .login-box {
        max-width: 560px;
        padding: var(--spacing-xl) var(--spacing-lg);
    }

    .login-content h3 {
        font-size: 1.5rem;
    }

    .login-content img {
        height: 80px;
    }
}

/* Mobile devices (576px to 767px) */
@media (max-width: 767px) {
    .container-fluid {
        padding: var(--spacing-md);
        min-height: 100vh;
    }

    .row {
        max-width: 100%;
        padding: 0;
        min-height: auto;
    }

    .login-box {
        max-width: 100%;
        width: 100%;
        padding: var(--spacing-lg) var(--spacing-md);
        margin: 0;
    }

    .login-content h3 {
        font-size: 1.35rem;
        margin: var(--spacing-md) 0;
    }

    .login-content img {
        height: 70px;
    }

    .form-control {
        padding: 0.75rem 0.875rem;
        font-size: 0.95rem;
    }

    .btn {
        padding: 0.75rem 1.25rem;
        font-size: 0.95rem;
    }

    .copy-right {
        position: static;
        transform: none;
        margin-top: var(--spacing-xl);
        font-size: 0.8rem;
    }
}

/* Small mobile devices (up to 575px) */
@media (max-width: 575px) {
    .container-fluid {
        padding: var(--spacing-sm);
    }

    .row {
        max-width: 100%;
    }

    .login-box {
        width: 100%;
        max-width: 100%;
        padding: var(--spacing-lg) var(--spacing-md);
        border-radius: var(--radius-lg);
        margin: 0;
    }

    .login-content {
        margin-bottom: var(--spacing-md);
    }

    .login-content h3 {
        font-size: 1.25rem;
    }

    .login-content img {
        height: 60px;
    }

    .form-group {
        margin-bottom: var(--spacing-md);
    }

    .form-group label {
        font-size: 0.85rem;
        margin-bottom: 0.375rem;
    }

    .form-control {
        padding: 0.65rem 0.75rem;
        font-size: 0.9rem;
    }

    .btn {
        padding: 0.65rem 1rem;
        font-size: 0.9rem;
    }

    .login-btn-box {
        margin-top: var(--spacing-md);
    }
}

/* ============================================
   Accessibility & Focus States
   ============================================ */
*:focus-visible {
    outline: 2px solid var(--input-focus);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .login-box {
        border: 2px solid var(--text-primary);
    }

    .form-control {
        border-width: 2px;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ============================================
   Print Styles
   ============================================ */
@media print {

    .login-screen::before,
    .copy-right {
        display: none;
    }

    .login-box {
        box-shadow: none;
        border: 1px solid #000;
    }
}

/* ============================================
   RTL-Specific Adjustments
   ============================================ */
[dir="rtl"] select.form-control {
    background-position: left 1rem center;
    padding-left: 2.5rem;
    padding-right: 1rem;
}

[dir="ltr"] select.form-control {
    background-position: right 1rem center;
    padding-right: 2.5rem;
    padding-left: 1rem;
}

/* ============================================
   Animation Utilities
   ============================================ */
@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

@keyframes shake {

    0%,
    100% {
        transform: translateX(0);
    }

    10%,
    30%,
    50%,
    70%,
    90% {
        transform: translateX(-5px);
    }

    20%,
    40%,
    60%,
    80% {
        transform: translateX(5px);
    }
}

/* Error state animation */
.form-control.error {
    border-color: var(--error-color);
    animation: shake 0.5s ease-in-out;
}

/* Success state */
.form-control.success {
    border-color: var(--success-color);
}