/* Estilos minimalistas Apple-like para autenticación */
:root {
    --apple-bg: #f5f5f7;
    --apple-card-bg: #ffffff;
    --apple-border: #d2d2d7;
    --apple-text-primary: #1d1d1f;
    --apple-text-secondary: #86868b;
    --apple-blue: #007aff;
    --apple-blue-hover: #0056cc;
    --apple-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
    --apple-shadow-light: 0 4px 20px rgba(0, 0, 0, 0.04);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--apple-bg);
    color: var(--apple-text-primary);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Contenedor principal */
.login-container {
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
    padding: 3rem 2rem;
}

/* Tarjeta de login */
.login-card {
    background: var(--apple-card-bg);
    border-radius: 18px;
    box-shadow: var(--apple-shadow);
    padding: 3rem 2.5rem;
    border: none;
    overflow: hidden;
}

/* Logo/Header */
.login-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.login-logo {
    font-size: 2rem;
    font-weight: 600;
    color: var(--apple-text-primary);
    letter-spacing: -0.5px;
    margin-bottom: 0.5rem;
}

.login-subtitle {
    color: var(--apple-text-secondary);
    font-size: 1rem;
    font-weight: 400;
    margin: 0;
}

/* Campos de formulario */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    color: var(--apple-text-primary);
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.form-control {
    width: 100%;
    padding: 1rem 1.25rem;
    font-size: 1rem;
    background: #fff;
    border: 1px solid var(--apple-border);
    border-radius: 12px;
    color: var(--apple-text-primary);
    transition: all 0.2s ease;
    box-shadow: none;
    outline: none;
}

.form-control:focus {
    border-color: var(--apple-blue);
    box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.1);
}

.form-control::placeholder {
    color: #c7c7cc;
}

/* Estado de error */
.form-control.is-invalid {
    border-color: #ff3b30;
}

.invalid-feedback {
    display: block;
    color: #ff3b30;
    font-size: 0.8125rem;
    margin-top: 0.375rem;
}

/* Checkbox */
.form-check {
    display: flex;
    align-items: center;
    margin: 1.5rem 0 2rem;
    padding-left: 0;
}

.form-check-input {
    width: 20px;
    height: 20px;
    margin: 0;
    margin-right: 0.75rem;
    background-color: #fff;
    border: 1px solid var(--apple-border);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.form-check-input:checked {
    background-color: var(--apple-blue);
    border-color: var(--apple-blue);
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3e%3cpath fill='none' stroke='%23fff' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='m6 10 3 3 6-6'/%3e%3c/svg%3e");
}

.form-check-label {
    color: var(--apple-text-secondary);
    font-size: 0.875rem;
    cursor: pointer;
    user-select: none;
}

/* Botón principal */
.btn-primary {
    width: 100%;
    padding: 1rem;
    font-size: 1rem;
    font-weight: 500;
    background: var(--apple-blue);
    border: none;
    border-radius: 12px;
    color: white;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: var(--apple-shadow-light);
}

.btn-primary:hover {
    background: var(--apple-blue-hover);
    transform: translateY(-1px);
    box-shadow: 0 8px 25px rgba(0, 122, 255, 0.2);
}

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

.btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

/* Alertas */
.alert {
    padding: 1rem 1.25rem;
    border-radius: 12px;
    border: none;
    margin-bottom: 1.5rem;
    font-size: 0.875rem;
}

.alert-danger {
    background-color: rgba(255, 59, 48, 0.1);
    color: #ff3b30;
}

.alert-success {
    background-color: rgba(52, 199, 89, 0.1);
    color: #34c759;
}

/* Texto informativo */
.info-text {
    text-align: center;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(210, 210, 215, 0.4);
    color: var(--apple-text-secondary);
    font-size: 0.8125rem;
    line-height: 1.4;
}

/* Enlace olvidé contraseña */
.forgot-password-link {
    display: block;
    text-align: center;
    margin-top: 1rem;
    color: var(--apple-blue);
    font-size: 0.875rem;
    text-decoration: none;
    transition: color 0.2s ease;
}

.forgot-password-link:hover {
    color: var(--apple-blue-hover);
    text-decoration: underline;
}

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

.login-card {
    animation: fadeInUp 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Responsive */
@media (max-width: 480px) {
    .login-container {
        padding: 2rem 1rem;
    }
    
    .login-card {
        padding: 2.5rem 1.5rem;
        border-radius: 16px;
    }
    
    .login-logo {
        font-size: 1.75rem;
    }
    
    .login-subtitle {
        font-size: 0.9375rem;
    }
    
    /* Corregir checkbox pegado en móvil */
    .form-check {
        margin-left: 0.25rem;
    }
}

/* Focus states accesibles */
.form-control:focus-visible,
.form-check-input:focus-visible,
.btn-primary:focus-visible {
    outline: 2px solid var(--apple-blue);
    outline-offset: 2px;
}

/* Loading state */
.btn-primary.loading {
    position: relative;
    color: transparent;
}

.btn-primary.loading::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    top: 50%;
    left: 50%;
    margin-left: -10px;
    margin-top: -10px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s linear infinite;
}

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

/* Placeholder styling */
::-webkit-input-placeholder {
    color: #c7c7cc;
    opacity: 1;
}

:-ms-input-placeholder {
    color: #c7c7cc;
    opacity: 1;
}

::-moz-placeholder {
    color: #c7c7cc;
    opacity: 1;
}

:-moz-placeholder {
    color: #c7c7cc;
    opacity: 1;
}