/* NeuraLife - Estilos actualizados con órdenes de diseño y legibilidad */

/* Importar fuentes con preconnect y font-display: swap */
@import url("https://fonts.googleapis.com/css2?family=Poppins:wght@400;600;700;800&family=Open+Sans:wght@400;600&display=swap");

/* Variables CSS actualizadas */
:root {
    /* Paleta de colores actualizada */
    --bg-primary: linear-gradient(135deg, #0F1419 0%, #12181F 100%);
    --bg-secondary: #151C23;
    --surface: #151C23;
    --border-color: #1E2630;
    --accent-primary: #00FFC3;
    --accent-hover: rgba(0, 255, 195, 0.9);
    
    /* Colores de texto actualizados */
    --text-primary: #FFFFFF;
    --text-secondary: #C7D0D9;
    --text-disabled: #8A97A6;
    --text-dark: #0B0F12;
    
    /* Sombras y efectos */
    --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.3);
    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);
    --glass-bg: rgba(21, 28, 35, 0.8);
    --glass-border: rgba(30, 38, 48, 0.6);
    --overlay-dark: rgba(0, 0, 0, 0.4);
    
    /* Tipografía actualizada */
    --font-primary: 'Poppins', sans-serif;
    --font-secondary: 'Open Sans', sans-serif;
    
    /* Tamaños de fuente actualizados */
    --fs-h1: 3.5rem; /* 56px */
    --fs-h2: 2.25rem; /* 36px */
    --fs-h3: 1.5rem; /* 24px */
    --fs-body: 1.125rem; /* 18px */
    --fs-small: 0.875rem; /* 14px */
    
    /* Espaciado actualizado */
    --section-padding: 5.5rem 0; /* 88px */
    --section-padding-mobile: 4rem 0; /* 64px */
    --container-max-width: 1200px;
    
    /* Transiciones */
    --transition-fast: 0.2s ease;
    --transition-smooth: 0.3s ease;
}

/* Reset y base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-secondary);
    font-size: var(--fs-body);
    font-weight: 400;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-primary);
    position: relative;
    overflow-x: hidden;
}

/* Patrón de fondo digital sutil */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(0, 255, 195, 0.06) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(0, 255, 195, 0.04) 0%, transparent 50%),
        radial-gradient(circle at 40% 80%, rgba(0, 255, 195, 0.08) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
}

/* Tipografía actualizada */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-primary);
    color: var(--text-primary);
    margin-bottom: 1rem;
    line-height: 1.2;
}

h1 {
    font-size: var(--fs-h1);
    font-weight: 800;
}

h2 {
    font-size: var(--fs-h2);
    font-weight: 700;
}

h3 {
    font-size: var(--fs-h3);
    font-weight: 600;
}

p {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

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

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

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

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

/* Contenedores */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 1rem;
}

/* Secciones con espaciado actualizado */
.section {
    padding: var(--section-padding);
}

@media (max-width: 768px) {
    .section {
        padding: var(--section-padding-mobile);
    }
}

/* Paneles surface */
.surface, .card-custom, .glass {
    background: var(--surface);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: var(--shadow-card);
    padding: 2rem;
    transition: var(--transition-smooth);
}

.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
}

/* Navbar actualizada con glass effect */
.navbar-custom {
    background: rgba(15, 20, 25, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    padding: 0.5rem 0; /* Reduced padding */
    transition: var(--transition-smooth);
    min-height: 64px; /* Desktop height */
}

@media (max-width: 768px) {
    .navbar-custom {
        min-height: 56px; /* Mobile height */
    }
    .navbar-collapse {
        background: var(--bg-secondary); /* Fondo oscuro para menú hamburguesa */
        padding: 1rem;
        border-radius: 8px;
        margin-top: 0.5rem;
    }
}

.navbar-brand {
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--text-primary) !important;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.navbar-brand img {
    width: auto;
    height: 40px; /* Compacted logo height */
}

.navbar-nav .nav-link {
    color: var(--text-primary) !important;
    font-weight: 500;
    padding: 0.75rem 1rem !important; /* Compacted padding */
    transition: var(--transition-fast);
    position: relative;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
    color: var(--accent-primary) !important;
    text-decoration: underline; /* Subrayado para activo */
}

.navbar-nav .nav-link.active::after {
    content: none; /* Remove checkmark */
}

/* Selector de idioma actualizado */
.language-selector {
    background: var(--border-color);
    color: var(--text-secondary);
    border: none;
    padding: 0.25rem 0.6rem; /* Más pequeño */
    border-radius: 16px; /* Más pill */
    font-size: 0.8rem;
    font-weight: 500;
    transition: var(--transition-fast);
    min-width: unset; /* Eliminar min-width */
    min-height: unset; /* Eliminar min-height */
    line-height: 1;
}

.language-selector:hover {
    background: var(--surface);
    color: var(--text-primary);
    border: 1px solid var(--accent-primary);
}

/* Botones actualizados */
.btn-primary-custom {
    background: var(--accent-primary);
    color: var(--text-dark);
    border: none;
    padding: 0.6rem 1.5rem; /* Más compacto */
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.95rem; /* Tamaño de fuente ligeramente menor */
    transition: var(--transition-fast);
    min-height: 40px; /* Altura mínima más compacta */
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn-primary-custom:hover {
    background: var(--accent-hover);
    color: var(--text-dark);
    box-shadow: 0 4px 16px rgba(0, 255, 195, 0.3);
    transform: translateY(-1px);
}

.btn-outline-custom {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--accent-primary);
    padding: 0.6rem 1.5rem; /* Más compacto */
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.95rem; /* Tamaño de fuente ligeramente menor */
    transition: var(--transition-fast);
    min-height: 40px; /* Altura mínima más compacta */
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn-outline-custom:hover {
    background: var(--accent-primary);
    color: var(--text-dark);
    border-color: var(--accent-primary);
}

/* Hero section actualizada */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--overlay-dark);
    z-index: -1;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, var(--fs-h1));
    font-weight: 800;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-primary);
    margin-bottom: 2rem;
    opacity: 0.9;
}

/* Títulos de sección */
.section-title {
    text-align: center;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.section-subtitle {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    font-size: 1.125rem;
}

/* Cards actualizadas */
.card-custom {
    height: 100%;
    transition: var(--transition-smooth);
    position: relative;
}

.card-custom:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-card);
}

.card-custom h4, .card-custom h5 {
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.card-custom p {
    color: var(--text-secondary);
}

/* Iconos con acento */
.icon-wrapper {
    margin-bottom: 1.5rem;
}

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

/* Listas actualizadas */
ul:not(.list-unstyled) li {
    position: relative;
    padding-left: 0; /* Eliminar padding-left */
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

ul:not(.list-unstyled) li::before {
    content: none; /* Eliminar checkmark */
}

.list-unstyled li {
    color: var(--text-primary);
}

/* Pricing cards actualizadas */
.pricing-card {
    background: var(--surface);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2.5rem 2rem;
    text-align: center;
    transition: var(--transition-smooth);
    position: relative;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.pricing-card.featured {
    border: 2px solid var(--accent-primary);
    box-shadow: 0 0 30px rgba(0, 255, 195, 0.2);
    transform: scale(1.05);
}

.pricing-card h3 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.price {
    font-size: 3rem;
    font-weight: 800;
    color: var(--text-primary);
    font-family: var(--font-primary);
}

.price-period {
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 400;
}

/* Toggle switch actualizado */
.toggle-switch {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 34px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--border-color);
    transition: var(--transition-smooth);
    border-radius: 34px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 26px;
    width: 26px;
    left: 4px;
    bottom: 4px;
    background-color: var(--text-primary);
    transition: var(--transition-smooth);
    border-radius: 50%;
}

input:checked + .slider {
    background-color: var(--accent-primary);
}

input:checked + .slider:before {
    transform: translateX(26px);
    background-color: var(--text-dark);
}

/* Accordion actualizado */
.accordion-custom .accordion-item {
    background: var(--surface);
    border: 1px solid var(--border-color);
    margin-bottom: 1rem;
    border-radius: 8px;
    overflow: hidden;
}

.accordion-custom .accordion-button {
    background: var(--surface);
    color: var(--text-primary);
    border: none;
    padding: 1.5rem;
    font-weight: 600;
    position: relative;
}

.accordion-custom .accordion-button:not(.collapsed) {
    background: var(--surface);
    color: var(--text-primary);
    box-shadow: none;
}

.accordion-custom .accordion-button::after {
    background-image: none;
    content: '+';
    color: var(--accent-primary);
    font-size: 1.5rem;
    font-weight: bold;
    transform: none;
}

.accordion-custom .accordion-button:not(.collapsed)::after {
    content: '−';
}

.accordion-custom .accordion-body {
    background: var(--surface);
    color: var(--text-secondary);
    padding: 0 1.5rem 1.5rem;
}

/* Formularios actualizados */
.form-control-custom {
    background: var(--surface);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.75rem 1rem;
    border-radius: 8px;
    font-size: var(--fs-body);
    transition: var(--transition-fast);
    min-height: 44px;
}

.form-control-custom:focus {
    background: var(--surface);
    border-color: var(--accent-primary);
    color: var(--text-primary);
    box-shadow: 0 0 0 0.2rem rgba(0, 255, 195, 0.25);
}

.form-control-custom::placeholder {
    color: var(--text-disabled);
}

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

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

.form-check-label {
    color: var(--text-primary);
}

/* Modales actualizados */
.modal-content-custom {
    background: var(--surface);
    border: 1px solid var(--border-color);
    border-radius: 12px;
}

.modal-header-custom {
    border-bottom: 1px solid var(--border-color);
    background: var(--surface);
}

.modal-title {
    color: var(--text-primary);
}

.btn-close-white {
    filter: invert(1);
}

/* Footer actualizado */
.footer-custom {
    background: var(--surface);
    border-top: 1px solid var(--border-color);
    padding: 3rem 0 2rem;
    margin-top: 4rem;
}

.footer-claim {
    text-align: center;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2rem;
    font-family: var(--font-primary);
}

.footer-custom h5 {
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.footer-custom .text-muted {
    color: var(--text-secondary) !important;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: var(--border-color);
    color: var(--text-primary);
    border-radius: 8px;
    transition: var(--transition-fast);
    font-size: 1.25rem;
}

.social-links a:hover {
    background: var(--accent-primary);
    color: var(--text-dark);
    transform: translateY(-2px);
}

/* Badges actualizados */
.badge {
    font-weight: 600;
    padding: 0.5rem 1rem;
    border-radius: 20px;
}

.bg-primary-custom {
    background-color: var(--accent-primary) !important;
    color: var(--text-dark) !important;
}

/* Animaciones y efectos */
.floating {
    animation: floating 3s ease-in-out infinite;
}

@keyframes floating {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

/* Focus visible para accesibilidad */
*:focus-visible {
    outline: 2px solid var(--accent-primary);
    outline-offset: 2px;
    border-radius: 4px;
}

/* Responsive design */
@media (max-width: 768px) {
    :root {
        --fs-h1: 2.5rem;
        --fs-h2: 2rem;
        --fs-h3: 1.25rem;
        --fs-body: 1rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .pricing-card.featured {
        transform: none;
        margin-top: 1rem;
    }
    
    .container {
        padding: 0 1rem;
    }
}

/* Estados de carga y transiciones suaves */
img {
    transition: var(--transition-smooth);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: var(--shadow-soft);
}

img:hover {
    transform: scale(1.02);
}

/* Mejoras de contraste para accesibilidad */
.text-muted {
    color: var(--text-secondary) !important;
}

/* Sticky CTA en móvil */
@media (max-width: 768px) {
    .sticky-cta {
        position: fixed;
        bottom: 1rem;
        left: 1rem;
        right: 1rem;
        z-index: 1000;
        background: var(--accent-primary);
        color: var(--text-dark);
        padding: 1rem;
        border-radius: 12px;
        text-align: center;
        font-weight: 600;
        box-shadow: var(--shadow-card);
    }
}

/* Utilidades adicionales */
.bg-dark-secondary {
    background: var(--surface) !important;
}

.border-primary-custom {
    border-color: var(--accent-primary) !important;
}

.border-danger {
    border-color: #dc3545 !important;
}

/* Tablas */
.table-dark {
    --bs-table-bg: var(--surface);
    --bs-table-color: var(--text-primary);
    --bs-table-border-color: var(--border-color);
}

.table-striped > tbody > tr:nth-of-type(odd) > td {
    background-color: rgba(255, 255, 255, 0.05);
}

/* Alertas */
.alert-info {
    background-color: rgba(0, 255, 195, 0.1);
    border-color: var(--accent-primary);
    color: var(--text-primary);
}

.alert-warning {
    background-color: rgba(255, 193, 7, 0.1);
    border-color: #ffc107;
    color: var(--text-primary);
}

/* Navbar toggler personalizado */
.navbar-toggler {
    border: 1px solid var(--border-color);
    padding: 0.25rem 0.5rem;
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns=\'http://www.w3.org/2000/svg\' viewBox=\'0 0 30 30\'%3e%3cpath stroke=\'rgba%28255, 255, 255, 0.8%29\' stroke-linecap=\'round\' stroke-miterlimit=\'10\' stroke-width=\'2\' d=\'M4 7h22M4 15h22M4 23h22\'/%3e%3c/svg%3e");
}

/* Dropdown menus */
.dropdown-menu {
    background: var(--surface);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: var(--shadow-card);
}

.dropdown-item {
    color: var(--text-primary);
    padding: 0.5rem 1rem;
}

.dropdown-item:hover {
    background: var(--border-color);
    color: var(--text-primary);
}

.dropdown-divider {
    border-color: var(--border-color);
}

/* Mejoras específicas para imágenes */
.hero-section img,
.mockup-image {
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: var(--shadow-card);
}

/* Efectos de hover mejorados */
.card-custom:hover,
.pricing-card:hover {
    border-color: var(--accent-primary);
    box-shadow: 0 0 20px rgba(0, 255, 195, 0.2);
}

/* Microanimaciones */
.btn-primary-custom:active {
    transform: translateY(0);
}

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