/* ==========================================================================
   ONDA PARTÍCULA - NATURAL MECHATRONICS DESIGN SYSTEM (2026)
   ========================================================================== */

/* Design Tokens & State Variables (Organic Earth & Sky Palette) */
:root {
    /* Base Organic Theme Colors */
    --bg-dark: #090d0a; /* Deep forest earth black */
    --bg-card: rgba(18, 28, 22, 0.6); /* Translucent forest leaf */
    --bg-card-hover: rgba(22, 34, 26, 0.8);
    --border-color: rgba(255, 255, 255, 0.08);
    --border-color-hover: rgba(255, 255, 255, 0.2);
    
    /* Typography Colors */
    --text-primary: #f0fdf4; /* Off-white with slight green tint */
    --text-muted: #9ca3af;
    --text-dimmed: #6b7280;
    
    /* State-Dependent Accents (Onda Mode default - Leaf Green 142) */
    --accent-hue: 142; /* Vivid Leaf Green */
    --accent-sat: 72%;
    --accent-light: 45%;
    --accent-color: hsl(var(--accent-hue), var(--accent-sat), var(--accent-light));
    --accent-color-rgb: 34, 197, 94;
    --accent-glow: hsla(var(--accent-hue), var(--accent-sat), var(--accent-light), 0.18);
    --accent-glow-strong: hsla(var(--accent-hue), var(--accent-sat), var(--accent-light), 0.45);
    
    /* Layout & Utilities */
    --max-width: 1200px;
    --transition-speed: 0.4s;
    --transition-curve: cubic-bezier(0.16, 1, 0.3, 1);
}

/* State Change Transitions (Partícula Mode override - Sky Blue 200) */
body.state-particle {
    --bg-card: rgba(15, 23, 42, 0.6); /* Translucent sky dark */
    --bg-card-hover: rgba(17, 24, 39, 0.8);
    --accent-hue: 200; /* Vivid Sky Blue */
    --accent-sat: 95%;
    --accent-light: 45%;
    --accent-color-rgb: 2, 132, 199;
}

/* Reset & Global Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
}

/* Background Canvas & Flowing Glow */
#canvas-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
    background: radial-gradient(circle at 10% 20%, rgba(13, 22, 16, 0.98) 0%, rgba(9, 13, 10, 1) 90%);
}

body.state-particle #canvas-bg {
    background: radial-gradient(circle at 10% 20%, rgba(15, 23, 42, 0.98) 0%, rgba(3, 7, 18, 1) 90%);
}

body::before {
    content: '';
    position: fixed;
    top: -10%;
    right: -10%;
    width: 60%;
    height: 60%;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 60%);
    z-index: -2;
    filter: blur(80px);
    transition: background var(--transition-speed) var(--transition-curve);
    pointer-events: none;
}

/* Typography */
h1, h2, h3, h4, .logo-text, .badge, .slide-title {
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
}

/* Scrollbar Customization */
::-webkit-scrollbar {
    width: 10px;
}
::-webkit-scrollbar-track {
    background: var(--bg-dark);
}
::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 5px;
    border: 2px solid var(--bg-dark);
    transition: background 0.3s;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--accent-color);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: 30px;
    cursor: pointer;
    transition: all var(--transition-speed) var(--transition-curve);
    text-decoration: none;
}

.btn-primary {
    background-color: var(--accent-color);
    color: var(--bg-dark);
    border: 1px solid var(--accent-color);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px var(--accent-glow-strong);
}

.btn-secondary {
    background-color: rgba(255, 255, 255, 0.04);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}
.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.08);
    border-color: var(--border-color-hover);
    transform: translateY(-2px);
}

.btn-block {
    display: flex;
    width: 100%;
}

.glow-button {
    position: relative;
    z-index: 1;
}
.glow-button::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 30px;
    background: var(--accent-color);
    z-index: -1;
    opacity: 0;
    filter: blur(8px);
    transition: opacity 0.3s;
}
.glow-button:hover::after {
    opacity: 0.6;
}

/* Glassmorphism Cards */
.glass-card {
    background: var(--bg-card);
    backdrop-filter: blur(16px) saturate(140%);
    -webkit-backdrop-filter: blur(16px) saturate(140%);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    transition: all var(--transition-speed) var(--transition-curve);
}

.glass-card:hover {
    border-color: var(--border-color-hover);
    background: var(--bg-card-hover);
}

/* Badges */
.badge {
    display: inline-block;
    padding: 6px 16px;
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    color: var(--accent-color);
    margin-bottom: 20px;
    transition: color var(--transition-speed), border-color var(--transition-speed);
}

/* Glowing text effects */
.gradient-text {
    background: linear-gradient(90deg, #ffffff 0%, var(--accent-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    transition: background var(--transition-speed);
}

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

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    background: rgba(9, 13, 10, 0.5);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    transition: background 0.3s, border-bottom 0.3s;
}

body.state-particle .navbar {
    background: rgba(3, 7, 18, 0.5);
}

.nav-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 16px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo a {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.logo img {
    height: 40px;
    width: auto;
    object-fit: contain;
    filter: drop-shadow(0 0 8px var(--accent-glow));
    transition: filter var(--transition-speed);
}

.logo-text {
    font-size: 1.4rem;
    color: #ffffff;
    letter-spacing: -0.02em;
}

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-links a {
    color: var(--text-muted);
    font-size: 0.95rem;
    font-weight: 500;
    text-decoration: none;
    transition: color 0.3s, text-shadow 0.3s;
    position: relative;
    padding: 6px 0;
}

.nav-links a:hover, .nav-links a.active {
    color: var(--text-primary);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent-color);
    transition: width 0.3s, background-color var(--transition-speed);
}

.nav-links a.active::after, .nav-links a:hover::after {
    width: 100%;
}

/* State Switch Toggle Component */
.toggle-container {
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(255, 255, 255, 0.02);
    padding: 6px 12px;
    border-radius: 30px;
    border: 1px solid var(--border-color);
}

.toggle-label {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--text-dimmed);
    transition: color 0.3s;
}

body.state-onda .toggle-label.onda-active {
    color: var(--accent-color);
    text-shadow: 0 0 8px var(--accent-glow-strong);
}

body.state-particle .toggle-label.particle-active {
    color: var(--accent-color);
    text-shadow: 0 0 8px var(--accent-glow-strong);
}

.state-switch {
    width: 44px;
    height: 22px;
    border-radius: 15px;
    background-color: rgba(255, 255, 255, 0.08);
    border: 1px solid var(--border-color-hover);
    position: relative;
    cursor: pointer;
    outline: none;
}

.switch-handle {
    display: block;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background-color: var(--accent-color);
    box-shadow: 0 0 8px var(--accent-color);
    position: absolute;
    top: 2px;
    left: 3px;
    transition: transform var(--transition-speed) var(--transition-curve), background-color var(--transition-speed);
}

body.state-particle .switch-handle {
    transform: translateX(20px);
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: #ffffff;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Slider Section (ecainnovation.cl Style) */
.hero-slider-section {
    padding-top: 75px; /* Offset for sticky navbar */
    position: relative;
    width: 100vw;
    height: 80vh;
    min-height: 520px;
    overflow: hidden;
}

.slider-container {
    position: relative;
    width: 100%;
    height: 100%;
}

.slides-wrapper {
    position: relative;
    width: 100%;
    height: 100%;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    z-index: 1;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    padding: 0 10%;
    transition: opacity 0.8s ease-in-out;
}

.slide.active {
    opacity: 1;
    z-index: 2;
}

.slide-content {
    max-width: 650px;
    z-index: 3;
    animation: fadeInUp 0.8s ease-out forwards;
    transform: translateY(20px);
}

@keyframes fadeInUp {
    to {
        transform: translateY(0);
    }
}

.slide-badge {
    display: inline-block;
    padding: 6px 14px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    color: var(--accent-color);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    border-radius: 20px;
    margin-bottom: 16px;
    transition: color var(--transition-speed);
}

.slide-title {
    font-size: 3.6rem;
    line-height: 1.15;
    color: #ffffff;
    margin-bottom: 18px;
    letter-spacing: -0.03em;
    text-shadow: 0 4px 12px rgba(0,0,0,0.5);
}

.slide-desc {
    font-size: 1.2rem;
    color: #e5e7eb;
    margin-bottom: 36px;
    line-height: 1.6;
    text-shadow: 0 2px 8px rgba(0,0,0,0.5);
}

.slide-actions {
    display: flex;
    gap: 16px;
}

/* Slider arrows */
.slider-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 10;
    background: rgba(0, 0, 0, 0.25);
    border: 1px solid var(--border-color);
    color: #ffffff;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transition: all 0.3s;
}

.slider-arrow:hover {
    background: var(--accent-color);
    border-color: var(--accent-color);
    color: var(--bg-dark);
    box-shadow: 0 0 15px var(--accent-glow);
}

.slider-arrow.prev { left: 24px; }
.slider-arrow.next { right: 24px; }

/* Slider Dots */
.slider-dots {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    display: flex;
    gap: 12px;
}

.dot-nav {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    cursor: pointer;
    transition: all 0.3s;
}

.dot-nav:hover {
    background: rgba(255, 255, 255, 0.6);
}

.dot-nav.active {
    background: var(--accent-color);
    width: 24px;
    border-radius: 6px;
    box-shadow: 0 0 8px var(--accent-color);
}

/* Slogan / Highlight Section */
.slogan-section {
    padding: 64px 24px;
    text-align: center;
    background: rgba(255, 255, 255, 0.01);
    border-bottom: 1px solid var(--border-color);
}

.slogan-text {
    font-size: 2.2rem;
    line-height: 1.35;
    font-weight: 700;
    max-width: 900px;
    margin: 0 auto;
    color: #ffffff;
    letter-spacing: -0.02em;
}

/* Mission & Vision Section */
.mision-vision-section {
    padding: 80px 0;
}

.section-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

.about-quote {
    max-width: 900px;
    margin: 0 auto 56px;
    padding: 32px 40px;
    text-align: center;
    border-left: 4px solid var(--accent-color);
    background: var(--bg-card);
    transition: border-color var(--transition-speed);
}

.quote-text {
    font-size: 1.35rem;
    font-weight: 600;
    line-height: 1.55;
    color: #f3f4f6;
    font-style: italic;
}

.mision-vision-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
}

.mv-card {
    padding: 40px;
}

.mv-icon-wrapper {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
}

.mv-icon-wrapper i {
    font-size: 1.6rem;
    color: var(--accent-color);
    transition: color var(--transition-speed);
}

.mv-card h3 {
    font-size: 1.5rem;
    color: #ffffff;
    margin-bottom: 16px;
}

.mv-card p {
    color: var(--text-muted);
    font-size: 0.98rem;
    line-height: 1.65;
}

/* Video Showcase Section */
.video-seccion {
    padding: 80px 0;
    background: rgba(0, 0, 0, 0.1);
}

.video-card-container {
    padding: 24px;
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 32px;
    align-items: center;
}

.video-player-wrapper {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    aspect-ratio: 16 / 9;
    box-shadow: 0 15px 35px rgba(0,0,0,0.4);
    border: 1px solid var(--border-color);
}

.showcase-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.video-details h3 {
    font-size: 1.6rem;
    color: #ffffff;
    margin-bottom: 16px;
    border-bottom: 2px solid var(--accent-color);
    padding-bottom: 8px;
    display: inline-block;
    transition: border-color var(--transition-speed);
}

.video-details p {
    color: var(--text-muted);
    font-size: 1rem;
    line-height: 1.65;
}

/* Solutions / Node Services Section */
.soluciones-section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 56px;
}

.section-desc {
    color: var(--text-muted);
    max-width: 600px;
    margin: 12px auto 0;
    font-size: 1.05rem;
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.solution-card {
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 480px;
    border-radius: 16px;
}

.card-image-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
    filter: brightness(0.25) saturate(0.85);
    transition: transform 0.6s var(--transition-curve), filter 0.6s var(--transition-curve);
}

.solution-card:hover .card-image-bg {
    transform: scale(1.08);
    filter: brightness(0.35) saturate(1);
}

.card-content-overlay {
    position: relative;
    z-index: 2;
    padding: 40px 32px;
    display: flex;
    flex-direction: column;
    height: 100%;
    background: linear-gradient(180deg, rgba(9,13,10,0.1) 0%, rgba(9,13,10,0.85) 75%);
    transition: background 0.4s;
}

body.state-particle .card-content-overlay {
    background: linear-gradient(180deg, rgba(3,7,18,0.1) 0%, rgba(3,7,18,0.85) 75%);
}

.solution-glow {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 60%);
    opacity: 0;
    transition: opacity 0.4s;
    pointer-events: none;
    z-index: 1;
}

.solution-card:hover .solution-glow {
    opacity: 1;
}

.card-icon-container {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    transition: all 0.3s;
}

.solution-icon {
    font-size: 1.6rem;
    color: var(--accent-color);
    transition: color var(--transition-speed);
}

.solution-card:hover .card-icon-container {
    border-color: var(--accent-color);
    box-shadow: 0 0 15px var(--accent-glow);
}

.solution-card h3 {
    font-size: 1.4rem;
    margin-bottom: 16px;
    color: #ffffff;
}

.solution-intro {
    color: #d1d5db;
    font-size: 0.95rem;
    margin-bottom: 24px;
    flex-grow: 1;
    line-height: 1.6;
}

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

.solution-list li {
    font-size: 0.9rem;
    color: #f3f4f6;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.solution-list li i {
    color: var(--accent-color);
    font-size: 0.85rem;
    transition: color var(--transition-speed);
}

/* Telemetry Section */
.telemetria-section {
    padding: 80px 0;
}

.telemetria-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.telemetria-info h2 {
    font-size: 2.4rem;
    margin-bottom: 20px;
}

.telemetria-info p {
    color: var(--text-muted);
    margin-bottom: 20px;
    font-size: 1.05rem;
}

.telemetria-stats {
    display: flex;
    gap: 20px;
    margin-top: 32px;
    margin-bottom: 40px;
}

.stat-box {
    flex: 1;
    padding: 20px 24px;
}

.stat-value {
    font-size: 2.2rem;
    font-weight: 800;
    color: #ffffff;
    font-family: 'Outfit', sans-serif;
}

.stat-unit {
    font-size: 1.2rem;
    color: var(--accent-color);
    margin-left: 2px;
    transition: color var(--transition-speed);
}

.stat-label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 4px;
}

.telemetria-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.telemetry-card {
    padding: 24px;
}

.telemetry-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 16px;
    margin-bottom: 20px;
}

.telemetry-header h3 {
    font-size: 1rem;
    color: #ffffff;
}

.status-indicator {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.75rem;
    font-weight: 600;
    background: rgba(34, 197, 94, 0.05);
    border: 1px solid rgba(34, 197, 94, 0.15);
    padding: 4px 10px;
    border-radius: 12px;
    color: #22c55e;
}

body.state-particle .status-indicator {
    background: rgba(2, 132, 199, 0.05);
    border: 1px solid rgba(2, 132, 199, 0.15);
    color: #0284c7;
}

.status-indicator .pulse {
    display: inline-block;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: var(--accent-color);
    animation: blink-dot 1.5s infinite;
}

@keyframes blink-dot {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 1; }
}

.chart-container {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    padding: 16px;
    margin-bottom: 20px;
    position: relative;
    overflow: hidden;
}

.telemetry-svg {
    width: 100%;
    height: auto;
    display: block;
}

.svg-node {
    animation: pulse-node 2s infinite ease-in-out;
    transform-origin: center;
    transition: fill var(--transition-speed);
}

#telemetry-wave-path, #telemetry-area-path {
    transition: stroke var(--transition-speed);
}

@keyframes pulse-node {
    0%, 100% { transform: scale(1); opacity: 0.8; }
    50% { transform: scale(1.3); opacity: 1; }
}

.telemetry-footer {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.telemetry-footer strong {
    color: var(--text-primary);
}

.telemetria-form {
    display: inline-block;
}

/* Collaborating Partners Section (ecainnovation.cl style) */
.partners-section {
    padding: 80px 0;
    background: rgba(0, 0, 0, 0.15);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.partners-title {
    text-align: center;
    font-size: 1.4rem;
    color: #ffffff;
    margin-bottom: 40px;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    max-width: var(--max-width);
    margin: 0 auto;
}

.partner-card {
    padding: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100px;
    transition: transform 0.3s, border-color 0.3s;
}

.partner-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent-color);
}

.partner-logo {
    width: 100%;
    height: 100%;
    max-height: 55px;
    transition: filter 0.3s;
}

/* Contact Section */
.contact-section {
    padding: 80px 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 64px;
    align-items: center;
}

.contact-details h2 {
    font-size: 2.4rem;
    margin-bottom: 16px;
}

.contact-details p {
    color: var(--text-muted);
    margin-bottom: 32px;
    font-size: 1.05rem;
}

.contact-methods {
    display: grid;
    gap: 24px;
}

.contact-method {
    display: flex;
    gap: 16px;
    align-items: center;
}

.method-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-color);
    font-size: 1.1rem;
    transition: all 0.3s;
}

.contact-method:hover .method-icon {
    border-color: var(--accent-color);
    box-shadow: 0 0 10px var(--accent-glow);
}

.contact-method h4 {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 2px;
}

.contact-method p {
    font-size: 1rem;
    color: #ffffff;
    margin-bottom: 0;
}

.contact-method a {
    color: #ffffff;
    text-decoration: none;
}
.contact-method a:hover {
    color: var(--accent-color);
}

.contact-form-container {
    width: 100%;
}

.form-card {
    padding: 40px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.form-title {
    font-size: 1.4rem;
    margin-bottom: 24px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 20px;
}

.form-group-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
}

.form-group input, 
.form-group select, 
.form-group textarea {
    background: rgba(0, 0, 0, 0.25);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px 16px;
    color: #ffffff;
    font-size: 0.9rem;
    outline: none;
    transition: all 0.3s;
}

.form-group input:focus, 
.form-group select:focus, 
.form-group textarea:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 8px var(--accent-glow);
}

.form-group input::placeholder, 
.form-group textarea::placeholder {
    color: var(--text-dimmed);
}

.form-group select option {
    background: #111c16;
    color: #ffffff;
}

body.state-particle .form-group select option {
    background: #0f172a;
}

.error-msg {
    color: #ef4444;
    font-size: 0.85rem;
    margin-bottom: 15px;
    display: none;
}

.success-msg {
    color: #10b981;
    font-size: 0.85rem;
    margin-bottom: 15px;
    display: none;
}

/* Footer */
.footer {
    background: #060907;
    border-top: 1px solid var(--border-color);
    padding-top: 64px;
    padding-bottom: 32px;
}

body.state-particle .footer {
    background: #020617;
}

.footer-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.footer-brand .logo img {
    height: 32px;
}

.footer-brand p {
    font-size: 0.85rem;
    color: var(--text-muted);
    max-width: 250px;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links h4, .footer-social h4 {
    font-size: 0.95rem;
    margin-bottom: 8px;
    color: #ffffff;
}

.footer-links a, .footer-btn-link {
    font-size: 0.85rem;
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-links a:hover, .footer-btn-link:hover {
    color: var(--accent-color);
}

.footer-btn-link {
    background: none;
    border: none;
    text-align: left;
    cursor: pointer;
    font-family: inherit;
    padding: 0;
}

.footer-social {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.social-icons {
    display: flex;
    gap: 12px;
}

.social-icons a {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    text-decoration: none;
    transition: all 0.3s;
}

.social-icons a:hover {
    border-color: var(--accent-color);
    color: var(--bg-dark);
    background-color: var(--accent-color);
}

.footer-bottom {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 32px;
    text-align: center;
}

.footer-bottom p {
    font-size: 0.8rem;
    color: var(--text-dimmed);
}

/* ==========================================================================
   RESPONSIVE DESIGN (MEDIA QUERIES)
   ========================================================================== */

@media (max-width: 1024px) {
    .slide-title {
        font-size: 2.8rem;
    }
    .slogan-text {
        font-size: 1.8rem;
    }
    .mision-vision-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    .video-card-container {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    .solutions-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    .telemetria-layout, .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .telemetria-visual {
        order: -1;
    }
    .partners-grid {
        grid-template-columns: 1fr 1fr;
        gap: 20px;
    }
    .footer-container {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: rgba(9, 13, 10, 0.96);
        border-bottom: 1px solid var(--border-color);
        flex-direction: column;
        padding: 24px;
        gap: 16px;
    }
    
    body.state-particle .nav-links {
        background: rgba(3, 7, 18, 0.96);
    }
    
    .nav-links.active {
        display: flex;
    }

    .mobile-menu-toggle {
        display: block;
    }

    .slide-title {
        font-size: 2.2rem;
    }

    .slide-desc {
        font-size: 1rem;
    }

    .slide-actions {
        flex-direction: column;
        gap: 10px;
    }

    .slider-arrow {
        width: 40px;
        height: 40px;
    }
    
    .slider-arrow.prev { left: 8px; }
    .slider-arrow.next { right: 8px; }

    .form-group-row {
        grid-template-columns: 1fr;
        gap: 0;
    }
    
    .telemetria-actions {
        flex-direction: column;
        align-items: stretch;
    }
    
    .telemetria-form {
        display: block;
    }
    
    .telemetria-form button {
        width: 100%;
    }
    
    .footer-container {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}