/* 
 * Auth Modern CSS
 * Estilos centralizados para todas las páginas de autenticación
 * APICAF - API de Autorización de Folios
 */

/* ========================================
   Variables y configuración base
   ======================================== */
:root {
    --auth-primary: #2c3e50;
    --auth-secondary: #3498db;
    --auth-success: #27ae60;
    --auth-warning: #f39c12;
    --auth-danger: #e74c3c;
    --auth-light: #ecf0f1;
    --auth-dark: #2c3e50;
    --auth-border-radius: 10px;
    --auth-border-radius-lg: 15px;
    --auth-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    --auth-shadow-sm: 0 4px 6px rgba(0, 0, 0, 0.1);
    --auth-transition: all 0.3s ease;
}

/* ========================================
   Contenedores principales
   ======================================== */
.auth-container {
    max-width: 450px;
    margin: 2rem auto;
    animation: fadeInUp 0.5s ease;
}

.auth-container.auth-container-sm {
    max-width: 400px;
}

.auth-card {
    background: white;
    border-radius: var(--auth-border-radius-lg);
    box-shadow: var(--auth-shadow);
    padding: 2.5rem;
    transition: var(--auth-transition);
}

.auth-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
}

/* ========================================
   Headers de autenticación
   ======================================== */
.auth-header {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-header-icon {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    display: inline-block;
}

.auth-header-icon.gradient-text {
    background: linear-gradient(45deg, var(--auth-secondary), #5dade2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.auth-header-icon.gradient-success {
    background: linear-gradient(45deg, var(--auth-success), #52c41a);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.auth-header-icon.gradient-warning {
    background: linear-gradient(45deg, var(--auth-warning), #f7b731);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.auth-header h2 {
    color: var(--auth-dark);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.auth-header .text-muted {
    font-size: 0.95rem;
}

/* ========================================
   Formularios y campos
   ======================================== */
.auth-form .form-control {
    border-radius: var(--auth-border-radius);
    border: 2px solid #e9ecef;
    padding: 0.75rem 1rem;
    transition: var(--auth-transition);
    font-size: 0.95rem;
}

.auth-form .form-control:focus {
    border-color: var(--auth-secondary);
    box-shadow: 0 0 0 0.2rem rgba(52, 152, 219, 0.25);
    outline: none;
}

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

.auth-form .form-label {
    font-weight: 500;
    color: #495057;
    margin-bottom: 0.5rem;
}

.auth-form .form-label i {
    width: 20px;
    text-align: center;
}

.auth-form .form-text {
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

/* ========================================
   Botones de autenticación
   ======================================== */
.btn-auth {
    border: none;
    border-radius: 25px;
    padding: 0.75rem 2rem;
    font-weight: 500;
    width: 100%;
    margin-top: 1rem;
    transition: var(--auth-transition);
    text-transform: none;
    font-size: 1rem;
}

.btn-auth-primary {
    background: linear-gradient(45deg, var(--auth-secondary), #5dade2);
    color: white;
}

.btn-auth-primary:hover {
    background: linear-gradient(45deg, #2980b9, var(--auth-secondary));
    transform: translateY(-1px);
    color: white;
    box-shadow: 0 5px 15px rgba(52, 152, 219, 0.3);
}

.btn-auth-success {
    background: linear-gradient(45deg, var(--auth-success), #52c41a);
    color: white;
}

.btn-auth-success:hover {
    background: linear-gradient(45deg, #229a22, var(--auth-success));
    transform: translateY(-1px);
    color: white;
    box-shadow: 0 5px 15px rgba(39, 174, 96, 0.3);
}

.btn-auth-warning {
    background: linear-gradient(45deg, var(--auth-warning), #f7b731);
    color: white;
}

.btn-auth-warning:hover {
    background: linear-gradient(45deg, #e67e22, var(--auth-warning));
    transform: translateY(-1px);
    color: white;
    box-shadow: 0 5px 15px rgba(243, 156, 18, 0.3);
}

/* ========================================
   OAuth y botones sociales
   ======================================== */
.oauth-section {
    margin-top: 1.5rem;
    text-align: center;
}

.btn-oauth {
    border: 2px solid #dadce0;
    background: white;
    color: #3c4043;
    font-weight: 500;
    transition: var(--auth-transition);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1rem;
    border-radius: var(--auth-border-radius);
    width: 100%;
    text-decoration: none;
}

.btn-oauth:hover {
    background-color: #f7f8f8;
    border-color: #dadce0;
    box-shadow: 0 1px 2px 0 rgba(60,64,67,.3), 0 1px 3px 1px rgba(60,64,67,.15);
    color: #3c4043;
    transform: translateY(-1px);
}

.btn-oauth svg {
    margin-right: 0.5rem;
}

/* ========================================
   Enlaces y navegación
   ======================================== */
.auth-links {
    text-align: center;
    margin-top: 1.5rem;
}

.auth-links a {
    color: var(--auth-secondary);
    text-decoration: none;
    transition: var(--auth-transition);
}

.auth-links a:hover {
    text-decoration: underline;
    color: #2980b9;
}

.auth-links hr {
    margin: 1.5rem 0;
    border-color: #e9ecef;
}

/* ========================================
   Cajas informativas
   ======================================== */
.info-box {
    border-radius: var(--auth-border-radius);
    padding: 1.5rem;
    margin-bottom: 2rem;
    color: white;
    animation: slideInLeft 0.5s ease;
}

.info-box.gradient-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.info-box.gradient-danger {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.info-box i {
    font-size: 1.5rem;
    margin-right: 0.5rem;
}

.security-tips {
    background: #f0f7ff;
    border-left: 4px solid var(--auth-secondary);
    padding: 1rem;
    border-radius: 0 var(--auth-border-radius) var(--auth-border-radius) 0;
    margin-top: 1.5rem;
}

/* ========================================
   Password strength meter
   ======================================== */
.password-strength {
    margin-top: 0.5rem;
    padding: 0.5rem;
    border-radius: 5px;
    background: #f8f9fa;
    display: none;
    animation: fadeIn 0.3s ease;
}

.password-strength.show {
    display: block;
}

.strength-meter {
    height: 5px;
    border-radius: 3px;
    background: #e9ecef;
    margin: 0.5rem 0;
    overflow: hidden;
}

.strength-meter-fill {
    height: 100%;
    transition: width 0.3s, background-color 0.3s;
}

.strength-weak { 
    background: var(--auth-danger); 
    width: 33%; 
}

.strength-medium { 
    background: var(--auth-warning); 
    width: 66%; 
}

.strength-strong { 
    background: var(--auth-success); 
    width: 100%; 
}

/* ========================================
   Requirements list
   ======================================== */
.requirements-list {
    list-style: none;
    padding: 0;
    margin: 0.5rem 0;
}

.requirements-list li {
    padding: 0.25rem 0;
    font-size: 0.9rem;
    color: #6c757d;
    transition: var(--auth-transition);
}

.requirements-list li.met {
    color: var(--auth-success);
}

.requirements-list li i {
    width: 20px;
    text-align: center;
    margin-right: 0.5rem;
}

/* ========================================
   Password toggle
   ======================================== */
.password-toggle {
    position: relative;
}

.password-toggle .toggle-btn {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    border: none;
    background: none;
    color: #6c757d;
    cursor: pointer;
    padding: 5px;
    transition: var(--auth-transition);
}

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

/* ========================================
   Mensajes y alertas
   ======================================== */
.auth-messages .alert {
    border-radius: var(--auth-border-radius);
    border: none;
    padding: 1rem;
    margin-bottom: 1rem;
    animation: slideInDown 0.5s ease;
}

.auth-messages .alert-danger {
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a6f 100%);
    color: white;
}

.auth-messages .alert-success {
    background: linear-gradient(135deg, #56ccf2 0%, #2f80ed 100%);
    color: white;
}

.auth-messages .alert-warning {
    background: linear-gradient(135deg, #f2994a 0%, #f2c94c 100%);
    color: white;
}

/* ========================================
   Validación de formularios
   ======================================== */
.field-error {
    color: var(--auth-danger);
    font-size: 0.875rem;
    margin-top: 0.25rem;
    animation: shake 0.5s ease;
}

.field-error i {
    margin-right: 0.25rem;
}

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

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

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

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes shake {
    0%, 100% {
        transform: translateX(0);
    }
    10%, 30%, 50%, 70%, 90% {
        transform: translateX(-5px);
    }
    20%, 40%, 60%, 80% {
        transform: translateX(5px);
    }
}

/* ========================================
   Responsividad
   ======================================== */
@media (max-width: 576px) {
    .auth-container {
        margin: 1rem;
    }
    
    .auth-card {
        padding: 1.5rem;
    }
    
    .auth-header-icon {
        font-size: 3rem;
    }
    
    .btn-auth {
        padding: 0.65rem 1.5rem;
        font-size: 0.95rem;
    }
}

/* ========================================
   Utilidades adicionales
   ======================================== */
.text-gradient {
    background: linear-gradient(45deg, var(--auth-secondary), #5dade2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

.divider-text:before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: #e9ecef;
}

.divider-text span {
    background: white;
    padding: 0 1rem;
    position: relative;
    color: #6c757d;
    font-size: 0.9rem;
}

/* Loading spinner */
.spinner-auth {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255,255,255,.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}