/**
 * Estilos optimizados para el sistema de login UNISO
 * Incluir después de Bootstrap CSS
 */

:root {
    --uniso-primary: #003366;
    --uniso-primary-light: #004080;
    --uniso-secondary: #6c757d;
    --uniso-success: #198754;
    --uniso-warning: #ffc107;
    --uniso-danger: #dc3545;
    --uniso-info: #0dcaf0;
    --uniso-light: #f8f9fa;
    --uniso-dark: #212529;
    
    --border-radius: 0.5rem;
    --border-radius-lg: 1rem;
    --transition: all 0.3s ease;
    --shadow-sm: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    --shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 1rem 3rem rgba(0, 0, 0, 0.175);
}

/* Configuración global */
* {
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
}

/* Container personalizado */
.custom-page {
    min-height: 100vh;
    overflow-x: hidden;
}

/* Lado de la imagen */
.bg-primary-transparent-3 {
    background: linear-gradient(135deg, var(--uniso-primary) 0%, var(--uniso-primary-light) 100%);
    position: relative;
}

.bg-primary-transparent-3::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="60" height="60" viewBox="0 0 60 60" xmlns="http://www.w3.org/2000/svg"><g fill="none" fill-rule="evenodd"><g fill="%23ffffff" fill-opacity="0.05"><circle cx="30" cy="30" r="1.5"/></g></svg>') repeat;
    pointer-events: none;
}

/* Card principal */
.card-sigin {
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    border: none;
    overflow: hidden;
}

/* Logo */
.header-logo {
    transition: var(--transition);
    display: inline-block;
}

.header-logo:hover {
    transform: scale(1.05);
}

.desktop-logo {
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

/* Títulos */
.main-signup-header h3 {
    color: var(--uniso-primary);
    font-weight: 600;
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.main-signup-header h6 {
    color: var(--uniso-secondary);
    font-weight: 400;
}

/* Formularios */
.form-control {
    border: 2px solid #e9ecef;
    border-radius: var(--border-radius);
    padding: 0.75rem 1rem;
    font-size: 1rem;
    transition: var(--transition);
    background-color: #fff;
}

.form-control:focus {
    border-color: var(--uniso-primary);
    box-shadow: 0 0 0 0.2rem rgba(0, 51, 102, 0.15);
    background-color: #fff;
}

.form-control.is-invalid {
    border-color: var(--uniso-danger);
    background-color: #fff5f5;
}

.form-control.is-invalid:focus {
    border-color: var(--uniso-danger);
    box-shadow: 0 0 0 0.2rem rgba(220, 53, 69, 0.15);
}

/* Labels */
.form-label {
    color: var(--uniso-dark);
    font-weight: 500;
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

/* Input groups */
.input-group .form-control {
    border-right: none;
}

.input-group .btn-outline-secondary {
    border: 2px solid #e9ecef;
    border-left: none;
    background-color: #f8f9fa;
    color: var(--uniso-secondary);
    transition: var(--transition);
}

.input-group .btn-outline-secondary:hover,
.input-group .btn-outline-secondary:focus {
    background-color: var(--uniso-primary);
    border-color: var(--uniso-primary);
    color: white;
}

.input-group:focus-within .form-control {
    border-color: var(--uniso-primary);
}

.input-group:focus-within .btn-outline-secondary {
    border-color: var(--uniso-primary);
}

/* Botones */
.btn {
    border-radius: var(--border-radius);
    font-weight: 500;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    transition: var(--transition);
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--uniso-primary), var(--uniso-primary-light));
    border-color: var(--uniso-primary);
    color: white;
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--uniso-primary-light), var(--uniso-primary));
    border-color: var(--uniso-primary-light);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 51, 102, 0.3);
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: 0 2px 4px rgba(0, 51, 102, 0.3);
}

.btn-primary.loading {
    pointer-events: none;
    opacity: 0.8;
}

.btn-primary.success {
    background: linear-gradient(135deg, var(--uniso-success), #20c997);
    border-color: var(--uniso-success);
}

.btn-outline-secondary {
    border-color: #dee2e6;
    color: var(--uniso-secondary);
}

.btn-outline-secondary:hover {
    background-color: var(--uniso-secondary);
    border-color: var(--uniso-secondary);
    transform: translateY(-1px);
}

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

.btn-outline-primary:hover {
    background-color: var(--uniso-primary);
    border-color: var(--uniso-primary);
    transform: translateY(-1px);
}

.btn:disabled {
    cursor: not-allowed;
    opacity: 0.6;
    transform: none !important;
    box-shadow: none !important;
}

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

/* Alertas */
.alert {
    border: none;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    border-left: 4px solid;
    margin-bottom: 1rem;
}

.alert-success {
    background-color: #d1e7dd;
    border-left-color: var(--uniso-success);
    color: #0a3622;
}

.alert-danger {
    background-color: #f8d7da;
    border-left-color: var(--uniso-danger);
    color: #58151c;
}

.alert-warning {
    background-color: #fff3cd;
    border-left-color: var(--uniso-warning);
    color: #664d03;
}

.alert-info {
    background-color: #cff4fc;
    border-left-color: var(--uniso-info);
    color: #055160;
}

.alert-light {
    background-color: #fefefe;
    border-left-color: #dee2e6;
    color: var(--uniso-secondary);
}

/* Información del sistema */
#system-info {
    transition: var(--transition);
    font-size: 0.9rem;
}

/* Loading overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(2px);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
}

.loading-content {
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid #e9ecef;
}

.loading-content .spinner-border {
    width: 3rem;
    height: 3rem;
    border-width: 0.3rem;
}

.loading-content p {
    margin-top: 1rem;
    margin-bottom: 0;
    color: var(--uniso-secondary);
    font-weight: 500;
}

/* Divider */
.divider {
    position: relative;
    text-align: center;
    margin: 1.5rem 0;
}

.divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(to right, transparent, #dee2e6, transparent);
}

.divider-text {
    background: white;
    padding: 0 1rem;
    font-size: 0.875rem;
    color: var(--uniso-secondary);
    font-weight: 500;
}

/* Enlaces */
a {
    color: var(--uniso-primary);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--uniso-primary-light);
    text-decoration: underline;
}

.btn-link {
    color: var(--uniso-primary);
    font-weight: 500;
}

.btn-link:hover {
    color: var(--uniso-primary-light);
}

/* Mensajes de retroalimentación */
.invalid-feedback {
    font-size: 0.875rem;
    color: var(--uniso-danger);
    font-weight: 500;
}

/* Animaciones */
.fade-in {
    animation: fadeInUp 0.4s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.slide-in {
    animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Spinner personalizado */
.spinner-border-sm {
    width: 1rem;
    height: 1rem;
    border-width: 0.15rem;
}

/* Estados de formulario deshabilitado */
.form-control:disabled {
    background-color: #f8f9fa;
    opacity: 0.7;
    cursor: not-allowed;
}

.disabled {
    opacity: 0.6;
    pointer-events: none;
}

/* Mejoras para accesibilidad */
.btn:focus,
.form-control:focus {
    outline: none;
}

.visually-hidden {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

/* Responsive design */
@media (max-width: 768px) {
    .container-fluid.custom-page {
        padding: 1rem;
    }
    
    .main-signup-header h3 {
        font-size: 1.75rem;
    }
    
    .ht-40 {
        height: 35px !important;
    }
    
    .btn-lg {
        padding: 0.875rem 1.5rem;
        font-size: 1rem;
    }
    
    .card-sigin {
        margin: 1rem;
        border-radius: var(--border-radius);
    }
}

@media (max-width: 576px) {
    .main-signup-header h3 {
        font-size: 1.5rem;
    }
    
    .form-control {
        padding: 0.625rem 0.875rem;
    }
    
    .btn {
        padding: 0.625rem 1.25rem;
    }
    
    .loading-content {
        margin: 1rem;
        padding: 1.5rem;
    }
}

/* Modo oscuro (opcional) */
@media (prefers-color-scheme: dark) {
    body[data-theme="auto"] {
        background: linear-gradient(135deg, #1a1a1a 0%, #2d3748 100%);
    }
    
    body[data-theme="auto"] .card-sigin {
        background: #2d3748;
        color: white;
    }
    
    body[data-theme="auto"] .form-control {
        background-color: #4a5568;
        border-color: #718096;
        color: white;
    }
    
    body[data-theme="auto"] .form-control:focus {
        background-color: #4a5568;
        border-color: var(--uniso-primary);
    }
}

/* Print styles */
@media print {
    .loading-overlay,
    #alert-container,
    .btn {
        display: none !important;
    }
}