/* ==========================================================================
   AVVA | Sistema de Diseño Premium (Light Theme)
   Gobernanza Cultural y Responsabilidad Consciente
   ========================================================================== */

/* Importar Tipografías de Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@300;400;500;600;700;800&display=swap');

/* Variables de Sistema y Tokens de Diseño */
:root {
    --bg-dark: #f8fafc; /* Fondo claro principal (slate-50) */
    --bg-dark-rgb: 248, 250, 252;
    --bg-dark-secondary: #ffffff; /* Fondo claro secundario */
    --bg-card: rgba(255, 255, 255, 0.75); /* Card glassmorphic claro */
    --bg-card-hover: rgba(255, 255, 255, 0.95);
    --border-glass: rgba(15, 23, 42, 0.08); /* Borde sutil gris */
    --border-glass-active: rgba(8, 145, 178, 0.3);
    
    /* Paleta Cromática Premium Calibrada para Contraste Light */
    --primary-cyan: #0891b2; /* Cian para fondo claro */
    --primary-cyan-rgb: 8, 145, 178;
    --primary-indigo: #4f46e5; /* Índigo para fondo claro */
    --primary-indigo-rgb: 79, 70, 229;
    --accent-purple: #9333ea;
    
    --text-main: #0f172a; /* Texto principal oscuro (slate-900) */
    --text-muted: #475569; /* Texto secundario (slate-600) */
    --text-dimmed: #64748b; /* Texto atenuado (slate-500) */
    
    /* Semáforo de Coherencia */
    --color-optimal: #059669; /* Verde esmeralda con buen contraste */
    --color-optimal-rgb: 5, 150, 105;
    --color-warning: #d97706; /* Ámbar */
    --color-warning-rgb: 217, 119, 6;
    --color-critical: #dc2626; /* Rojo */
    --color-critical-rgb: 220, 38, 38;
    --color-neutral: #64748b;
    
    /* Fuentes */
    --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    
    /* Sombras y Efectos Premium */
    --shadow-glass: 0 10px 30px -10px rgba(15, 23, 42, 0.1), 0 1px 3px rgba(15, 23, 42, 0.05);
    --shadow-glow-cyan: 0 0 25px rgba(8, 145, 178, 0.15);
    --shadow-glow-indigo: 0 0 25px rgba(79, 70, 229, 0.15);
    --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Reset y Estilos Globales */
html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

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

/* Efectos de Orbes de Fondo Fluido en Tono Pastel */
.background-glow {
    position: absolute;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    filter: blur(140px);
    z-index: -1;
    opacity: 0.12;
    pointer-events: none;
}

.glow-cyan {
    background: radial-gradient(circle, var(--primary-cyan) 0%, transparent 70%);
    top: 10%;
    right: -100px;
}

.glow-indigo {
    background: radial-gradient(circle, var(--primary-indigo) 0%, transparent 70%);
    bottom: 20%;
    left: -200px;
    opacity: 0.08;
}

.glow-purple {
    background: radial-gradient(circle, var(--accent-purple) 0%, transparent 70%);
    top: 50%;
    right: -200px;
    opacity: 0.06;
}

/* Tipografía */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    letter-spacing: -0.02em;
    color: var(--text-main);
}

.text-gradient-cyan-indigo {
    background: linear-gradient(135deg, var(--primary-cyan) 0%, var(--primary-indigo) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.text-gradient-purple-cyan {
    background: linear-gradient(135deg, var(--accent-purple) 0%, var(--primary-cyan) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Navegación Glassmorphic Light */
.navbar-glass {
    background: rgba(var(--bg-dark-rgb), 0.75);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-glass);
    transition: var(--transition-smooth);
    padding: 15px 0;
}

.navbar-glass.scrolled {
    padding: 10px 0;
    background: rgba(var(--bg-dark-rgb), 0.9);
    box-shadow: var(--shadow-glass);
}

.navbar-brand img {
    height: 40px;
    width: auto;
    transition: var(--transition-smooth);
    filter: none; /* Logo original visible */
}

.nav-link {
    color: var(--text-muted) !important;
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 0.95rem;
    margin: 0 10px;
    transition: var(--transition-smooth);
    position: relative;
}

.nav-link:hover {
    color: var(--primary-cyan) !important;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-cyan), var(--primary-indigo));
    transition: var(--transition-smooth);
}

.nav-link:hover::after {
    width: 100%;
}

/* Tarjetas y Contenedores Glassmorphism Light */
.card-glass {
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-glass);
    border-radius: 20px;
    padding: 30px;
    box-shadow: var(--shadow-glass);
    transition: var(--transition-smooth);
    height: 100%;
    position: relative;
    overflow: hidden;
}

.card-glass:hover {
    transform: translateY(-8px);
    background: var(--bg-card-hover);
    border-color: rgba(8, 145, 178, 0.2);
    box-shadow: 0 20px 40px rgba(15, 23, 42, 0.08), var(--shadow-glow-cyan);
}

/* Botones Premium */
.btn-premium {
    font-family: var(--font-heading);
    font-weight: 600;
    border-radius: 50px;
    padding: 12px 28px;
    transition: var(--transition-smooth);
    border: none;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn-premium-cyan {
    background: linear-gradient(135deg, var(--primary-cyan) 0%, var(--primary-indigo) 100%);
    color: #ffffff; /* Texto blanco en botón con fondo de gradiente */
}

.btn-premium-cyan::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-indigo) 0%, var(--primary-cyan) 100%);
    opacity: 0;
    z-index: -1;
    transition: var(--transition-smooth);
}

.btn-premium-cyan:hover {
    color: #ffffff;
    box-shadow: var(--shadow-glow-indigo);
    transform: scale(1.03);
}

.btn-premium-cyan:hover::before {
    opacity: 1;
}

.btn-premium-outline {
    background: transparent;
    color: var(--text-main);
    border: 1px solid var(--border-glass);
    backdrop-filter: blur(5px);
}

.btn-premium-outline:hover {
    border-color: var(--primary-cyan);
    background: rgba(8, 145, 178, 0.05);
    box-shadow: var(--shadow-glow-cyan);
    transform: scale(1.03);
}

/* Hero Section */
.hero-section {
    padding: 160px 0 100px 0;
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
}

.hero-tag {
    background: rgba(8, 145, 178, 0.08);
    border: 1px solid rgba(8, 145, 178, 0.15);
    color: var(--primary-cyan);
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    display: inline-block;
    margin-bottom: 24px;
}

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 24px;
    color: var(--text-main);
}

@media (max-width: 991.98px) {
    .hero-title {
        font-size: 2.8rem;
    }
}

.hero-desc {
    color: var(--text-muted);
    font-size: 1.25rem;
    margin-bottom: 35px;
    max-width: 600px;
}

/* Bucle Evolutivo AVVA */
.loop-container {
    position: relative;
    padding: 40px 0;
}

.loop-step {
    border-radius: 16px;
    padding: 24px;
    background: rgba(255, 255, 255, 0.8);
    border: 1px solid var(--border-glass);
    transition: var(--transition-smooth);
    text-align: center;
    cursor: pointer;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.03);
}

.loop-step.active, .loop-step:hover {
    background: rgba(79, 70, 229, 0.05);
    border-color: var(--primary-indigo);
    box-shadow: var(--shadow-glow-indigo);
    transform: scale(1.05);
}

.loop-number {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 800;
    color: rgba(79, 70, 229, 0.2);
    line-height: 1;
    margin-bottom: 8px;
    transition: var(--transition-smooth);
}

.loop-step.active .loop-number, .loop-step:hover .loop-number {
    color: var(--primary-cyan);
    text-shadow: 0 0 10px rgba(8, 145, 178, 0.2);
}

.loop-arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--text-dimmed);
}

@media (max-width: 767.98px) {
    .loop-arrow {
        transform: rotate(90deg);
        margin: 15px 0;
    }
}

/* Pilares de la Conciencia */
.pilar-tab-btn {
    width: 100%;
    text-align: left;
    background: rgba(255, 255, 255, 0.6);
    border: 1px solid var(--border-glass);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 12px;
    color: var(--text-main);
    transition: var(--transition-smooth);
}

.pilar-tab-btn:hover, .pilar-tab-btn.active {
    background: rgba(8, 145, 178, 0.05);
    border-color: var(--primary-cyan);
    box-shadow: var(--shadow-glow-cyan);
}

.pilar-tab-icon {
    font-size: 1.5rem;
    color: var(--text-muted);
    margin-right: 15px;
    transition: var(--transition-smooth);
}

.pilar-tab-btn.active .pilar-tab-icon, .pilar-tab-btn:hover .pilar-tab-icon {
    color: var(--primary-cyan);
}

.pilar-content-box {
    background: #ffffff;
    border: 1px solid var(--border-glass);
    border-radius: 20px;
    padding: 40px;
    position: relative;
    overflow: hidden;
    height: 100%;
    box-shadow: var(--shadow-glass);
}

.pilar-content-box::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 6px;
    height: 100%;
    background: linear-gradient(to bottom, var(--primary-cyan), var(--primary-indigo));
}

/* Ecuación Metodológica y Gráfico I-AVVA */
.equation-box {
    background: linear-gradient(135deg, rgba(8, 145, 178, 0.08) 0%, rgba(79, 70, 229, 0.08) 100%);
    border: 1px solid rgba(15, 23, 42, 0.08);
    border-radius: 20px;
    padding: 30px;
    text-align: center;
    box-shadow: var(--shadow-glass);
}

.donut-chart {
    position: relative;
    width: 280px;
    height: 280px;
    margin: 0 auto;
}

.donut-chart svg {
    transform: rotate(-90deg);
}

.donut-segment {
    fill: none;
    stroke-width: 14;
    transition: stroke-dasharray 0.5s ease-in-out;
}

.donut-hole {
    fill: transparent;
}

.donut-ring {
    fill: none;
    stroke: rgba(15, 23, 42, 0.03);
    stroke-width: 14;
}

.chart-center-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    width: 70%;
}

.chart-legend {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    margin-top: 30px;
}

.legend-item {
    display: flex;
    align-items: center;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.legend-color {
    width: 12px;
    height: 12px;
    border-radius: 3px;
    margin-right: 8px;
    flex-shrink: 0;
}

/* Semáforo de Coherencia */
.slider-container {
    padding: 20px 0;
}

.custom-range {
    -webkit-appearance: none;
    width: 100%;
    height: 8px;
    border-radius: 5px;
    background: rgba(15, 23, 42, 0.08);
    outline: none;
    margin: 15px 0;
    transition: background 450ms ease-in;
}

.custom-range::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: #ffffff;
    cursor: pointer;
    border: 3px solid var(--primary-cyan);
    box-shadow: 0 2px 8px rgba(15, 23, 42, 0.15);
    transition: var(--transition-smooth);
}

.custom-range::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

.traffic-light-box {
    border-radius: 16px;
    padding: 20px;
    text-align: center;
    font-weight: 600;
    transition: var(--transition-smooth);
    margin-top: 20px;
    border: 1px solid transparent;
}

.traffic-light-box.optimal {
    background: rgba(5, 150, 105, 0.08);
    border-color: rgba(5, 150, 105, 0.2);
    color: var(--color-optimal);
    box-shadow: 0 4px 12px rgba(5, 150, 105, 0.05);
}

.traffic-light-box.warning {
    background: rgba(217, 119, 6, 0.08);
    border-color: rgba(217, 119, 6, 0.2);
    color: var(--color-warning);
    box-shadow: 0 4px 12px rgba(217, 119, 6, 0.05);
}

.traffic-light-box.critical {
    background: rgba(220, 38, 38, 0.08);
    border-color: rgba(220, 38, 38, 0.2);
    color: var(--color-critical);
    box-shadow: 0 4px 12px rgba(220, 38, 38, 0.05);
}

/* Selector de Arquetipos */
.arquetipo-card {
    border-radius: 16px;
    padding: 25px;
    background: #ffffff;
    border: 1px solid var(--border-glass);
    cursor: pointer;
    transition: var(--transition-smooth);
    height: 100%;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.03);
}

.arquetipo-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.9);
    box-shadow: 0 10px 20px -5px rgba(15, 23, 42, 0.05);
}

.arquetipo-card.active {
    background: rgba(255, 255, 255, 0.95);
}

.arquetipo-badge {
    padding: 4px 10px;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    display: inline-block;
    margin-bottom: 12px;
}

.badge-amber {
    background: rgba(217, 119, 6, 0.1);
    color: var(--color-warning);
}

.badge-red {
    background: rgba(220, 38, 38, 0.1);
    color: var(--color-critical);
}

.badge-orange {
    background: rgba(249, 115, 22, 0.1);
    color: #ea580c;
}

.badge-grey {
    background: rgba(100, 116, 139, 0.1);
    color: #475569;
}

.arquetipo-card.active.amber-profile {
    border-color: var(--color-warning);
    box-shadow: 0 0 15px rgba(217, 119, 6, 0.15);
}
.arquetipo-card.active.red-profile {
    border-color: var(--color-critical);
    box-shadow: 0 0 15px rgba(220, 38, 38, 0.15);
}
.arquetipo-card.active.orange-profile {
    border-color: #ea580c;
    box-shadow: 0 0 15px rgba(249, 115, 22, 0.15);
}
.arquetipo-card.active.grey-profile {
    border-color: #475569;
    box-shadow: 0 0 15px rgba(100, 116, 139, 0.15);
}

.arquetipo-detail-box {
    background: #ffffff;
    border: 1px dashed rgba(15, 23, 42, 0.15);
    border-radius: 20px;
    padding: 35px;
    height: 100%;
    min-height: 250px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    transition: var(--transition-smooth);
    box-shadow: var(--shadow-glass);
}

/* Ciclo Anual Timeline */
.timeline-container {
    position: relative;
    margin-top: 40px;
}

.timeline-line {
    position: absolute;
    left: 50%;
    top: 0;
    width: 2px;
    height: 100%;
    background: linear-gradient(to bottom, var(--primary-cyan), var(--primary-indigo));
    transform: translateX(-50%);
}

@media (max-width: 767.98px) {
    .timeline-line {
        left: 20px;
    }
}

.timeline-item {
    position: relative;
    margin-bottom: 50px;
}

.timeline-dot {
    position: absolute;
    left: 50%;
    top: 0;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--bg-dark);
    border: 4px solid var(--primary-cyan);
    transform: translateX(-50%);
    box-shadow: 0 0 10px rgba(8, 145, 178, 0.3);
    z-index: 2;
}

@media (max-width: 767.98px) {
    .timeline-dot {
        left: 20px;
    }
}

.timeline-content {
    width: 45%;
    padding: 20px;
    background: #ffffff;
    border: 1px solid var(--border-glass);
    border-radius: 16px;
    box-shadow: var(--shadow-glass);
    transition: var(--transition-smooth);
}

.timeline-item:nth-child(even) .timeline-content {
    margin-left: auto;
}

@media (max-width: 767.98px) {
    .timeline-content {
        width: calc(100% - 50px);
        margin-left: 50px !important;
    }
}

.timeline-content:hover {
    border-color: var(--primary-indigo);
    box-shadow: 0 10px 25px -5px rgba(79, 70, 229, 0.08);
}

/* Simulador de Chat Virtual AVVA AI (Light styled) */
.chat-window {
    border-radius: 20px;
    background: #ffffff;
    border: 1px solid var(--border-glass);
    box-shadow: var(--shadow-glass);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 480px;
}

.chat-header {
    background: #f1f5f9;
    border-bottom: 1px solid var(--border-glass);
    padding: 15px 20px;
    display: flex;
    align-items: center;
}

.chat-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-cyan), var(--primary-indigo));
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-weight: 700;
    margin-right: 12px;
    box-shadow: var(--shadow-glow-cyan);
}

.chat-status {
    width: 8px;
    height: 8px;
    background: var(--color-optimal);
    border-radius: 50%;
    display: inline-block;
    margin-right: 6px;
}

.chat-body {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 15px;
    background: #fafaf9; /* ultra-soft warm white background */
}

/* Custom Scrollbar for Chat */
.chat-body::-webkit-scrollbar {
    width: 6px;
}
.chat-body::-webkit-scrollbar-track {
    background: transparent;
}
.chat-body::-webkit-scrollbar-thumb {
    background: rgba(15, 23, 42, 0.08);
    border-radius: 10px;
}

.chat-message {
    max-width: 80%;
    padding: 12px 18px;
    border-radius: 16px;
    font-size: 0.95rem;
    line-height: 1.4;
    animation: slideUp 0.3s ease forwards;
}

.chat-message.bot {
    background: #ffffff;
    border: 1px solid var(--border-glass);
    color: var(--text-main);
    align-self: flex-start;
    border-bottom-left-radius: 4px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.02);
}

.chat-message.user {
    background: linear-gradient(135deg, var(--primary-cyan), var(--primary-indigo));
    color: #ffffff;
    font-weight: 500;
    align-self: flex-end;
    border-bottom-right-radius: 4px;
    box-shadow: 0 2px 8px rgba(79, 70, 229, 0.15);
}

.chat-footer {
    padding: 15px 20px;
    background: #f1f5f9;
    border-top: 1px solid var(--border-glass);
}

.chat-quick-options {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 12px;
}

.chat-option-btn {
    background: #ffffff;
    border: 1px solid var(--border-glass);
    border-radius: 50px;
    padding: 6px 14px;
    color: var(--text-muted);
    font-size: 0.8rem;
    transition: var(--transition-smooth);
    box-shadow: 0 1px 2px rgba(0,0,0,0.02);
}

.chat-option-btn:hover {
    background: rgba(8, 145, 178, 0.05);
    border-color: var(--primary-cyan);
    color: var(--primary-cyan);
    cursor: pointer;
}

/* Estructura de Secciones */
section {
    padding: 100px 0;
    position: relative;
}

.section-title-wrapper {
    margin-bottom: 60px;
    text-align: center;
}

.section-subtitle {
    font-family: var(--font-heading);
    font-weight: 600;
    color: var(--primary-cyan);
    font-size: 0.9rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 12px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-main);
}

/* Estilos de Formulario Light */
.form-glass {
    background: #ffffff;
    border: 1px solid rgba(15, 23, 42, 0.15);
    border-radius: 12px;
    padding: 14px 20px;
    color: var(--text-main);
    transition: var(--transition-smooth);
}

.form-glass:focus {
    background: #ffffff;
    border-color: var(--primary-cyan);
    box-shadow: var(--shadow-glow-cyan);
    color: var(--text-main);
    outline: none;
}

/* Pie de Página - Light Cohesive Style */
footer {
    background: #f8fafc;
    border-top: 1px solid var(--border-glass);
    padding: 80px 0 30px 0;
}

.footer-link {
    color: var(--text-muted);
    text-decoration: none;
    transition: var(--transition-smooth);
}

.footer-link:hover {
    color: var(--primary-cyan);
    padding-left: 5px;
}

.footer-logo {
    height: 40px;
    margin-bottom: 20px;
}

/* Animaciones Keyframes */
@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(15px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in-up {
    animation: slideUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.delay-100 { animation-delay: 0.1s; }
.delay-200 { animation-delay: 0.2s; }
.delay-300 { animation-delay: 0.3s; }