:root {
    /* Light Mode Defaults for all tabs */
    --bg-primary: #FFFFFF;
    --bg-secondary: #F5F5F7;
    --bg-panel: #FFFFFF;
    --accent-cyan: #004B87; /* Deep Navy Blue */
    --accent-cyan-glow: rgba(0, 75, 135, 0.1);
    --text-primary: #1A1A1A;
    --text-secondary: #4A4A4A;
    --border-color: rgba(0, 0, 0, 0.1);
    --header-bg: rgba(255, 255, 255, 0.95);
    --bg-typography: rgba(0, 0, 0, 0.03);
    --hotspot-bg: rgba(255, 255, 255, 0.9);
    --font-main: 'Inter', sans-serif;
    --transition-smooth: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
    --shadow-base: rgba(0, 0, 0, 0.1);
    --table-header: rgba(0, 0, 0, 0.03);
    --table-highlight: rgba(0, 75, 135, 0.05);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-main);
    overflow-x: hidden;
    line-height: 1.6;
    transition: background-color 0.4s ease, color 0.4s ease;
}

/* Background Particles (Microbubbles) */
#particles-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    pointer-events: none;
    overflow: hidden;
}

body.light-theme #particles-container {
    opacity: 0.1; /* Reduce visibility in light mode */
}

.particle {
    position: absolute;
    background: var(--accent-cyan);
    border-radius: 50%;
    opacity: 0.2;
    animation: floatUp 10s linear infinite;
}

@keyframes floatUp {
    0% { transform: translateY(100vh) scale(0); opacity: 0; }
    20% { opacity: 0.3; }
    80% { opacity: 0.1; }
    100% { transform: translateY(-100px) scale(1); opacity: 0; }
}

@keyframes spin {
    100% { transform: rotate(360deg); }
}

.spin-icon {
    animation: spin 1.5s linear infinite;
}

/* Glass Header */
.glass-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 3rem;
    background: var(--header-bg);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: background-color 0.4s ease, border-color 0.4s ease;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 900;
    letter-spacing: 2px;
    color: var(--text-primary);
}

.logo-img {
    height: 60px; /* Adjust height based on logo proportions */
    width: auto;
    object-fit: contain;
    transition: var(--transition-smooth);
    cursor: pointer;
}

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

.main-nav {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.nav-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-family: var(--font-main);
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 1px;
    cursor: pointer;
    transition: var(--transition-smooth);
    padding: 0.5rem 1rem;
    position: relative;
}

.nav-btn:hover {
    color: var(--text-primary);
}

.nav-btn.active {
    color: var(--accent-cyan);
}

.nav-btn.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 10%;
    width: 80%;
    height: 2px;
    background-color: var(--accent-cyan);
    box-shadow: 0 0 10px var(--accent-cyan);
}

.btn-cta {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background-color: var(--accent-cyan);
    border: 1px solid var(--accent-cyan);
    border-radius: 4px;
    padding: 0.6rem 1.2rem;
    color: #FFFFFF;
    font-weight: 800;
    text-transform: uppercase;
    transition: var(--transition-smooth);
}

.btn-cta:hover {
    background-color: #003666; /* Slightly darker blue */
    color: #FFFFFF;
    box-shadow: 0 4px 15px var(--accent-cyan-glow);
    transform: translateY(-2px);
}

.btn-cta.active {
    color: #FFFFFF;
}

.btn-cta.active::after {
    display: none;
}

/* Main Content */
#main-content {
    margin-top: 80px;
    min-height: calc(100vh - 80px);
    position: relative;
}

.view-section {
    display: none;
    opacity: 0;
    transform: translateX(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
    padding-bottom: 4rem;
}

.view-section.active {
    display: block;
    opacity: 1;
    transform: translateX(0);
}

.section-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 3rem;
}

.cyan-text {
    color: var(--accent-cyan);
}

/* Hero Section */
.hero {
    position: relative;
    height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.bg-typography {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 12vw;
    font-weight: 900;
    color: var(--bg-typography);
    white-space: nowrap;
    z-index: 1;
    pointer-events: none;
    transition: color 0.4s ease;
}

.parallax-container {
    position: absolute;
    width: 60%;
    height: 100%;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.1s ease-out;
}

.parallax-img {
    width: 100%;
    height: auto;
    object-fit: contain;
    filter: drop-shadow(0 0 30px var(--shadow-base));
    mask-image: linear-gradient(to bottom, black 80%, transparent 100%);
    -webkit-mask-image: linear-gradient(to bottom, black 80%, transparent 100%);
    transition: filter 0.4s ease;
}

.hotspot {
    position: absolute;
    width: 20px;
    height: 20px;
    background: var(--accent-cyan);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 0 15px var(--accent-cyan);
    animation: pulse 2s infinite;
}

.hotspot::before {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%) scale(0.9);
    background: var(--hotspot-bg);
    border: 1px solid var(--accent-cyan);
    padding: 0.5rem 1rem;
    color: var(--text-primary);
    font-size: 0.8rem;
    white-space: nowrap;
    border-radius: 4px;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition-smooth);
}

.hotspot:hover::before {
    opacity: 1;
    transform: translateX(-50%) scale(1);
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 var(--accent-cyan-glow); }
    70% { box-shadow: 0 0 0 15px transparent; }
    100% { box-shadow: 0 0 0 0 transparent; }
}

.hero-content {
    position: absolute;
    bottom: 5%;
    width: 100%;
    max-width: 1200px;
    z-index: 3;
    padding: 0 2rem;
}

.main-headline {
    font-size: 3.5rem;
    font-weight: 900;
    max-width: 900px;
    margin-bottom: 2.5rem;
    line-height: 1.15;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.6);
    letter-spacing: -1px;
}

.headline-sub {
    font-size: 1.8rem;
    font-weight: 400;
    color: var(--text-secondary);
    display: block;
    margin-top: 1rem;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.6);
    letter-spacing: normal;
}

/* Metrics Grid */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.metric-card {
    background: var(--bg-panel);
    border: 1px solid var(--border-color);
    padding: 1.5rem;
    border-radius: 8px;
    backdrop-filter: blur(10px);
    border-left: 4px solid var(--accent-cyan);
    transition: background-color 0.4s ease, border-color 0.4s ease;
}

.metric-number {
    font-size: 3rem;
    font-weight: 900;
    color: var(--accent-cyan);
    line-height: 1;
    display: inline-block;
}

.metric-plus {
    font-size: 2rem;
    font-weight: 900;
    color: var(--accent-cyan);
}

.metric-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

.mission-block {
    background: var(--table-highlight);
    border: 1px solid var(--accent-cyan-glow);
    padding: 1.5rem;
    border-radius: 8px;
    max-width: 800px;
    border-left: 4px solid var(--accent-cyan);
}

/* Tables */
.table-responsive {
    overflow-x: auto;
}

.tech-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1.5rem;
    background: var(--bg-panel);
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.tech-table th, .tech-table td {
    padding: 1.2rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.tech-table th {
    background: var(--table-header);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.9rem;
    color: var(--accent-cyan); /* Navy blue in light mode */
}

.highlight-col {
    background: var(--table-highlight);
    color: var(--accent-cyan);
    font-weight: 600;
}

.engineering-note {
    font-style: italic;
    color: var(--text-secondary);
    font-size: 0.9rem;
    border-left: 2px solid var(--text-secondary);
    padding-left: 1rem;
    margin-top: 1rem;
}

/* Financial Impact */
.financial-impact-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 2rem;
    margin-bottom: 3rem;
}

.financial-card {
    background: var(--bg-panel);
    border: 1px solid var(--border-color);
    padding: 2rem;
    border-radius: 8px;
}

.cost-list {
    list-style: none;
    margin-top: 1rem;
}

.cost-list li {
    display: flex;
    justify-content: space-between;
    padding: 0.8rem 0;
    border-bottom: 1px solid var(--border-color);
}

.massive-contrast .contrast-row {
    display: flex;
    justify-content: space-around;
    align-items: center;
    height: 80%;
}

.contrast-item {
    text-align: center;
}

.contrast-item h4 {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.big-money {
    font-size: 4rem;
    font-weight: 900;
}

.contrast-item.bad .big-money {
    color: #FF3B30;
}

.contrast-item.good .big-money {
    color: var(--accent-cyan);
    text-shadow: 0 0 20px var(--accent-cyan-glow);
}

.savings-block {
    text-align: center;
    background: linear-gradient(45deg, var(--table-highlight), transparent);
    border: 1px solid var(--accent-cyan);
    padding: 3rem;
    border-radius: 8px;
    margin-bottom: 3rem;
}

.savings-block h2 {
    font-size: 2.5rem;
    color: var(--accent-cyan);
    margin-bottom: 0.5rem;
}

.solar-compatibility {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    background: rgba(255, 215, 0, 0.05);
    border: 1px solid rgba(255, 215, 0, 0.3);
    padding: 1.5rem;
    border-radius: 8px;
}

.solar-icon {
    width: 48px;
    height: 48px;
    color: #FFD700;
}

/* Quienes Somos */
.profile-desc {
    font-size: 1.2rem;
    max-width: 800px;
    margin-bottom: 3rem;
}

.capabilities-list {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin-top: 1.5rem;
    margin-bottom: 3rem;
}

.capabilities-list li {
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.cyan-icon {
    color: var(--accent-cyan);
    width: 20px;
    height: 20px;
}

.strategic-alliance {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    background: var(--bg-panel);
    border: 1px solid var(--border-color);
    padding: 2rem;
    border-radius: 8px;
}

.alliance-icon {
    width: 64px;
    height: 64px;
    color: var(--accent-cyan);
}

.value-prop-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 3rem;
}

.value-card {
    background: var(--bg-panel);
    padding: 2rem;
    border-radius: 8px;
    border-left: 4px solid var(--accent-cyan);
}

.value-metrics {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.v-metric {
    background: var(--bg-panel);
    padding: 1.5rem;
    border-radius: 8px;
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: center;
    border: 1px solid var(--border-color);
}

.v-metric span {
    font-size: 2rem;
    font-weight: 800;
}

.inline-list li {
    background: var(--table-header);
    padding: 1rem;
    border-radius: 4px;
    border: 1px solid var(--border-color);
}

.support-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-bottom: 3rem;
}

.support-col {
    background: var(--bg-panel);
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.support-col:hover {
    transform: translateY(-5px);
    border-color: var(--accent-cyan);
}

.large-icon {
    width: 48px;
    height: 48px;
    margin-bottom: 1rem;
}

.sla-alert {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    background: var(--table-highlight);
    border: 2px solid var(--accent-cyan);
    padding: 2rem;
    border-radius: 8px;
}

.sla-icon {
    width: 48px;
    height: 48px;
    color: var(--accent-cyan);
    flex-shrink: 0;
}

/* Cotizar */
.logistics-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.zones-list {
    list-style: none;
}

.zones-list li {
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.highlight-row {
    background: var(--table-highlight);
    font-weight: 800;
    color: var(--accent-cyan);
}

.urgent-banner {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    background: rgba(255, 59, 48, 0.1);
    border: 1px solid #FF3B30;
    padding: 2rem;
    border-radius: 8px;
    margin-bottom: 4rem;
}

.urgent-icon {
    width: 48px;
    height: 48px;
    color: #FF3B30;
    animation: pulseRed 2s infinite;
}

@keyframes pulseRed {
    0% { filter: drop-shadow(0 0 0 rgba(255, 59, 48, 0.7)); }
    70% { filter: drop-shadow(0 0 10px rgba(255, 59, 48, 0)); }
    100% { filter: drop-shadow(0 0 0 rgba(255, 59, 48, 0)); }
}

/* Formulario */
.form-container {
    background: var(--bg-panel);
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.quote-form {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group:nth-child(5), .form-group:nth-child(6) {
    grid-column: 1 / -1;
}

.quote-form label {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.quote-form input, .quote-form select, .quote-form textarea {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: 1rem;
    border-radius: 4px;
    color: var(--text-primary);
    font-family: var(--font-main);
    transition: var(--transition-smooth);
}

.quote-form input:focus, .quote-form select:focus, .quote-form textarea:focus {
    outline: none;
    border-color: var(--accent-cyan);
    box-shadow: 0 0 10px var(--accent-cyan-glow);
}

.submit-btn {
    grid-column: 1 / -1;
    background: transparent;
    border: 2px solid var(--accent-cyan);
    color: var(--accent-cyan);
    padding: 1.2rem;
    font-size: 1.1rem;
    font-weight: 800;
    text-transform: uppercase;
    border-radius: 4px;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    transition: var(--transition-smooth);
    margin-top: 1rem;
}

.submit-btn:hover {
    background: var(--accent-cyan);
    color: var(--bg-primary); /* White in dark mode, white in light mode */
}

/* Advanced Form Options */
.advanced-form-options {
    grid-column: 1 / -1;
    margin-top: 1rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-secondary);
    overflow: hidden;
}

.advanced-form-options summary {
    padding: 1.5rem;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--accent-cyan);
    cursor: pointer;
    list-style: none;
    display: flex;
    align-items: center;
    background: var(--bg-panel);
    border-bottom: 1px solid transparent;
    transition: var(--transition-smooth);
}

.advanced-form-options summary::-webkit-details-marker {
    display: none;
}

.advanced-form-options[open] summary {
    border-bottom: 1px solid var(--border-color);
    background: var(--table-header);
}

.advanced-fields-container {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-section-title {
    font-size: 1.1rem;
    color: var(--accent-cyan);
    margin-top: 1rem;
    margin-bottom: 0.5rem;
    border-bottom: 1px solid var(--accent-cyan-glow);
    padding-bottom: 0.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.form-row.grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
}

.form-row.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

/* ========= PESTAÑA: SISTEMAS (Estilos Específicos de Catálogo) ========= */

.system-intro-layout {
    display: flex;
    align-items: center;
    gap: 3rem;
    margin-bottom: 2rem;
}

.system-intro-text {
    flex: 1;
}

.system-intro-image {
    flex: 1;
    display: flex;
    justify-content: center;
}

.system-intro-image img {
    max-width: 100%;
    max-height: 250px;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 4px 15px var(--shadow-base);
}

.systems-tech-header {
    border-bottom: 2px solid var(--accent-cyan);
    padding-bottom: 1rem;
    margin-bottom: 2rem;
    margin-top: 2rem;
}

.systems-tech-header h3 {
    font-size: 2rem;
    color: var(--accent-cyan);
    font-weight: 800;
}

.systems-tech-header p {
    font-size: 1.2rem;
    color: var(--text-secondary);
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.process-step {
    background: var(--bg-panel);
    border: 1px solid var(--border-color);
    padding: 1.5rem;
    border-top: 4px solid var(--accent-cyan);
    border-radius: 4px;
}

.step-number {
    font-size: 3rem;
    font-weight: 900;
    color: var(--table-header);
    line-height: 1;
    margin-bottom: 1rem;
}

.process-step h4 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.highlight-box {
    background: var(--table-highlight);
    border: 1px solid var(--accent-cyan);
    padding: 1.5rem;
    border-radius: 4px;
    font-weight: 600;
    color: var(--accent-cyan);
    margin-bottom: 3rem;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.tech-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.tech-card {
    background: var(--bg-panel);
    border: 1px solid var(--border-color);
    padding: 2rem;
    border-radius: 4px;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.tech-card-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1rem;
}

.tech-card-header h4 {
    font-size: 1.2rem;
    color: var(--accent-cyan);
}

.tech-card-body ul {
    list-style: none;
    margin-top: 1rem;
}

.tech-card-body ul li {
    margin-bottom: 0.5rem;
    padding-left: 1.5rem;
    position: relative;
}

.tech-card-body ul li::before {
    content: "•";
    color: var(--accent-cyan);
    position: absolute;
    left: 0;
    font-weight: bold;
}

/* ==========================================================
   Animaciones sutiles para textos (Hover Dynamics)
   ========================================================== */
.section-title, 
.section-subtitle, 
.main-subtitle, 
.profile-desc,
.engineering-note,
.tech-card h3, 
.tech-card h4, 
.tech-card p, 
.process-step h4, 
.process-step p,
.capabilities-list li, 
.zones-list li,
.mission-block p,
.value-card h3,
.value-card p,
.support-col h3,
.support-col p {
    transition: transform 0.3s cubic-bezier(0.25, 0.8, 0.25, 1), color 0.3s ease, text-shadow 0.3s ease;
}

.section-title:hover {
    transform: translateY(-3px);
    color: var(--accent-cyan);
}

.section-subtitle:hover, 
.main-subtitle:hover,
.profile-desc:hover,
.engineering-note:hover {
    transform: translateY(-2px);
    color: var(--text-primary);
}

.tech-card h3:hover, 
.tech-card h4:hover, 
.process-step h4:hover,
.value-card h3:hover,
.support-col h3:hover {
    transform: translateX(5px);
    color: var(--accent-cyan);
}

.tech-card p:hover, 
.process-step p:hover,
.mission-block p:hover,
.value-card p:hover,
.support-col p:hover {
    transform: translateY(-2px);
}

.capabilities-list li:hover, 
.zones-list li:hover,
.inline-list li:hover {
    transform: translateX(8px);
    color: var(--accent-cyan);
}

.metric-number {
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), color 0.3s ease;
}

.metric-number:hover {
    transform: scale(1.15) translateY(-5px);
    color: var(--text-primary);
}

/* Responsiveness */
@media (max-width: 900px) {
    .metrics-grid, .financial-impact-grid, .value-prop-grid, .support-grid, .logistics-grid, .process-grid {
        grid-template-columns: 1fr;
    }
    
    .quote-form {
        grid-template-columns: 1fr;
    }

    .system-intro-layout {
        flex-direction: column;
        gap: 1.5rem;
    }

    .form-group {
        grid-column: 1 / -1;
    }

    .glass-header {
        flex-direction: column;
        gap: 1rem;
        padding: 1rem;
    }

    .main-nav {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    #main-content {
        margin-top: 140px;
    }

    .parallax-container {
        width: 100%;
        opacity: 0.3;
    }
    
    .hero-content {
        bottom: auto;
    }
}