/* Login CSS - Oficina Virtual Multinivel */

/* Variables de colores de la empresa */
:root {
    --verde-botella: #163e27;
    --verde-botella-claro: #2a5f3e;
    --verde-botella-medio: #1e4a2f;
    --blanco: #ffffff;
    --rosa: #ff69b4;
    --rosa-claro: #ffb3d9;
    --rosa-oscuro: #e85aa3;
    --dorado: #d4af37;
    --dorado-claro: #f4e68c;
    --dorado-oscuro: #b8941f;
}

/* Estilos base del login */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, var(--verde-botella) 0%, var(--dorado-oscuro) 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0;
    padding: 0;
}

/* Contenedor principal del login */
.login-container {
    background: var(--blanco);
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.3);
    overflow: hidden;
    max-width: 450px;
    width: 100%;
    margin: 20px;
    animation: slideInUp 0.6s ease-out;
}

/* Header del login */
.login-header {
    background: linear-gradient(135deg, var(--verde-botella) 0%, var(--dorado) 100%);
    color: var(--blanco);
    padding: 30px;
    text-align: center;
    position: relative;
}

.login-header::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--rosa) 0%, var(--dorado-claro) 100%);
}

/* Logo */
.logo {
    max-width: 120px;
    height: auto;
    margin-bottom: 15px;
    border-radius: 10px;
    border: 3px solid var(--blanco);
    transition: transform 0.3s ease;
}

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

/* Formulario de login */
.login-form {
    padding: 40px 30px;
    background: var(--blanco);
}

/* Campos del formulario */
.form-floating {
    margin-bottom: 20px;
}

.form-floating input {
    border: 2px solid #e9ecef;
    border-radius: 10px;
    transition: all 0.3s ease;
    font-size: 1rem;
    padding: 12px 16px;
    height: 58px;
}

.form-floating input:focus {
    border-color: var(--rosa);
    box-shadow: 0 0 0 0.2rem rgba(255, 105, 180, 0.25);
    outline: none;
}

.form-floating input:valid {
    border-color: var(--verde-botella);
}

.form-floating label {
    color: var(--verde-botella);
    font-weight: 500;
    padding: 16px;
}

/* Botón de login */
.btn-login {
    background: linear-gradient(135deg, var(--rosa) 0%, var(--dorado) 100%);
    border: none;
    border-radius: 10px;
    padding: 12px 30px;
    color: var(--blanco);
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    width: 100%;
    position: relative;
    overflow: hidden;
}

.btn-login::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(255, 105, 180, 0.4);
    color: var(--blanco);
}

.btn-login:hover::before {
    left: 100%;
}

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

/* Checkbox personalizado */
.form-check-input {
    border-radius: 6px;
    border: 2px solid var(--verde-botella);
    width: 1.2em;
    height: 1.2em;
}

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

.form-check-input:focus {
    border-color: var(--dorado);
    box-shadow: 0 0 0 0.2rem rgba(212, 175, 55, 0.25);
}

.form-check-label {
    color: var(--verde-botella);
    font-size: 0.95rem;
}

/* Alertas */
.alert {
    border-radius: 10px;
    border: none;
    margin-bottom: 20px;
    font-size: 0.95rem;
}

.alert-danger {
    background: linear-gradient(135deg, #ffe6e6 0%, #ffcccc 100%);
    color: var(--verde-botella);
    border-left: 4px solid #dc3545;
}

.alert-success {
    background: linear-gradient(135deg, #e6ffe6 0%, #ccffcc 100%);
    color: var(--verde-botella);
    border-left: 4px solid #28a745;
}

/* Enlaces */
.text-muted a {
    color: var(--dorado) !important;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.text-muted a:hover {
    color: var(--rosa) !important;
    text-decoration: underline;
}

/* Línea divisoria */
hr {
    border: none;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--rosa), transparent);
    margin: 25px 0;
}

/* Footer del login */
.login-footer {
    text-align: center;
    color: var(--verde-botella);
    font-size: 0.9rem;
}

.login-footer i {
    color: var(--rosa);
    margin-right: 5px;
}

/* Animaciones */
@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
    }
}

/* Estados de carga */
.btn-login:disabled {
    background: linear-gradient(135deg, #cccccc 0%, #999999 100%);
    cursor: not-allowed;
    transform: none !important;
}

.btn-login:disabled:hover {
    box-shadow: none;
}

/* Responsive Design */
@media (max-width: 576px) {
    body {
        padding: 10px;
    }
    
    .login-container {
        margin: 10px;
        border-radius: 15px;
        max-width: 100%;
    }
    
    .login-header,
    .login-form {
        padding: 20px;
    }
    
    .logo {
        max-width: 100px;
    }
    
    .login-header h1 {
        font-size: 1.5rem;
    }
    
    .form-floating input {
        font-size: 16px; /* Evita zoom en iOS */
    }
    
    .btn-login {
        font-size: 1rem;
        padding: 14px 20px;
    }
}

@media (max-width: 400px) {
    .login-header,
    .login-form {
        padding: 15px;
    }
    
    .logo {
        max-width: 80px;
    }
}

/* Estados de focus mejorados */
.form-floating input:focus + label {
    color: var(--rosa);
}

/* Mejoras de accesibilidad */
.form-floating input:focus,
.btn-login:focus,
.form-check-input:focus {
    outline: 2px solid var(--dorado);
    outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
    .login-container,
    .logo,
    .btn-login,
    .form-floating input {
        animation: none;
        transition: none;
    }
}

/* Modo de alto contraste */
@media (prefers-contrast: high) {
    .form-floating input {
        border-width: 3px;
    }
    
    .btn-login {
        border: 2px solid var(--verde-botella);
    }
}

/* Estados adicionales */
.form-floating input[aria-invalid="true"] {
    border-color: #dc3545;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12' width='12' height='12' fill='none' stroke='%23dc3545'%3e%3ccircle cx='6' cy='6' r='4.5'/%3e%3cpath d='m5.8 4.6 0.4 2 0.4-2'/%3e%3cpath d='M6 8.2h0.01'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 16px;
    padding-right: 40px;
}

.loading-spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid var(--blanco);
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 1s linear infinite;
}

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