/**
 * CloudX Webmail - Professional Banking-Grade CSS
 * Color Scheme: Professional Blue (#0066CC)
 */

/* ========================================
   Global Styles
   ======================================== */

:root {
    --primary-color: #0066CC;
    --primary-dark: #004999;
    --secondary-color: #00AA44;
    --background-light: #F5F7FA;
    --text-dark: #212529;
    --text-muted: #6C757D;
    --border-color: #DEE2E6;
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.2);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--background-light);
}

html, body {
    height: 100%;
}

/* ========================================
   Login Page Styles
   ======================================== */

.login-page {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-branding {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 3rem;
    position: relative;
    overflow: hidden;
}

.login-branding::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    animation: pulse 15s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.1); opacity: 0.8; }
}

.branding-content {
    position: relative;
    z-index: 1;
    text-align: center;
}

.logo-section h1 {
    font-size: 3rem;
    font-weight: 700;
    letter-spacing: -1px;
}

.features-section {
    max-width: 400px;
    margin: 0 auto;
}

.feature-item {
    display: flex;
    align-items: center;
    color: white;
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.feature-item i {
    font-size: 1.5rem;
    margin-right: 1rem;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255,255,255,0.2);
    border-radius: 50%;
}

.login-form-container {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    background-color: white;
}

.login-form-wrapper {
    width: 100%;
    max-width: 500px;
}

.login-card {
    background: white;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.login-card .card-body {
    padding: 3rem !important;
}

.login-card .card-title {
    color: var(--text-dark);
    font-size: 1.75rem;
}

/* ========================================
   Form Styles
   ======================================== */

.form-label {
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.form-control {
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(0, 102, 204, 0.15);
    outline: none;
}

.form-control-lg {
    font-size: 1.1rem;
    padding: 0.875rem 1.25rem;
}

.input-group-text {
    background-color: var(--background-light);
    border: 2px solid var(--border-color);
    border-right: none;
    color: var(--text-muted);
    border-radius: 8px 0 0 8px;
}

.input-group .form-control {
    border-left: none;
    border-radius: 0;
}

.input-group .btn-outline-secondary {
    border: 2px solid var(--border-color);
    border-left: none;
    border-radius: 0 8px 8px 0;
    color: var(--text-muted);
}

.input-group .btn-outline-secondary:hover {
    background-color: var(--background-light);
    color: var(--text-dark);
}

/* ========================================
   Button Styles
   ======================================== */

.btn {
    border-radius: 8px;
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    transition: all 0.3s ease;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark) 0%, #003366 100%);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

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

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

/* ========================================
   Alert Styles
   ======================================== */

.alert {
    border-radius: 8px;
    border: none;
    padding: 1rem 1.25rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-sm);
}

.alert-danger {
    background-color: #FEE;
    color: #C00;
}

.alert-success {
    background-color: #EFE;
    color: #060;
}

.alert-warning {
    background-color: #FFC;
    color: #960;
}

.alert-info {
    background-color: #E7F3FF;
    color: #0066CC;
    border-left: 4px solid var(--primary-color);
}

.alert i {
    margin-right: 0.5rem;
}

/* ========================================
   Form Validation
   ======================================== */

.was-validated .form-control:invalid {
    border-color: #DC3545;
}

.was-validated .form-control:valid {
    border-color: #28A745;
}

.invalid-feedback {
    color: #DC3545;
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

/* ========================================
   Checkbox & Links
   ======================================== */

.form-check-input {
    width: 1.25rem;
    height: 1.25rem;
    margin-top: 0.15rem;
    border: 2px solid var(--border-color);
}

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

.form-check-label {
    margin-left: 0.5rem;
    color: var(--text-dark);
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--primary-dark);
}

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

@media (max-width: 991.98px) {
    .login-page {
        background: white;
    }
    
    .login-card {
        box-shadow: none;
        border: none;
    }
    
    .login-card .card-body {
        padding: 2rem !important;
    }
}

@media (max-width: 575.98px) {
    .login-card .card-body {
        padding: 1.5rem !important;
    }
    
    .btn-lg {
        padding: 0.875rem 1.5rem;
        font-size: 1rem;
    }
}

/* ========================================
   Utility Classes
   ======================================== */

.text-white-50 {
    color: rgba(255, 255, 255, 0.5) !important;
}

.fw-bold {
    font-weight: 700 !important;
}

.text-primary {
    color: var(--primary-color) !important;
}

.bg-primary {
    background-color: var(--primary-color) !important;
}

/* ========================================
   Accessibility
   ======================================== */

.btn:focus,
.form-control:focus,
.form-check-input:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .login-branding {
        border-right: 3px solid white;
    }
    
    .form-control {
        border-width: 3px;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}