/* ==========================================================================
   GAONA CONSULTORES TI - MODERN DESIGN SYSTEM & STYLESHEET
   ========================================================================== */

:root {
  /* Color Palette - Deep Navy & Electric Tech Accents */
  --bg-primary: #070b14;
  --bg-secondary: #0d1527;
  --bg-tertiary: #131f38;
  --bg-card: rgba(15, 23, 42, 0.75);
  --bg-card-hover: rgba(26, 38, 66, 0.85);
  --bg-glass: rgba(13, 21, 39, 0.7);
  --bg-glass-elevated: rgba(24, 38, 70, 0.8);
  
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(0, 229, 255, 0.3);
  --border-active: #00f2fe;

  --accent-cyan: #00f2fe;
  --accent-blue: #4facfe;
  --accent-indigo: #6366f1;
  --accent-purple: #8b5cf6;
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;
  --accent-rose: #f43f5e;

  /* Gradients */
  --grad-primary: linear-gradient(135deg, #00f2fe 0%, #4facfe 50%, #6366f1 100%);
  --grad-accent: linear-gradient(135deg, #00f2fe 0%, #00c6ff 100%);
  --grad-dark: linear-gradient(180deg, #070b14 0%, #0d1527 100%);
  --grad-card: linear-gradient(145deg, rgba(255, 255, 255, 0.04) 0%, rgba(255, 255, 255, 0.01) 100%);
  --grad-glow: radial-gradient(circle at 50% 50%, rgba(0, 242, 254, 0.15), transparent 70%);

  /* Typography */
  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Text Colors */
  --text-pure: #ffffff;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.6);
  --shadow-cyan-glow: 0 0 25px rgba(0, 242, 254, 0.25);
  --shadow-blue-glow: 0 0 30px rgba(79, 172, 254, 0.3);

  /* Spacing & Radii */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;

  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

/* ==========================================================================
   RESET & BASE STYLES
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 85px;
  font-size: 16px;
  color-scheme: dark;
}

section[id], .section {
  scroll-margin-top: 85px;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.65;
  overflow-x: hidden;
  position: relative;
  background-image: 
    radial-gradient(at 0% 0%, rgba(0, 242, 254, 0.08) 0px, transparent 50%),
    radial-gradient(at 100% 30%, rgba(99, 102, 241, 0.08) 0px, transparent 50%),
    radial-gradient(at 50% 80%, rgba(0, 242, 254, 0.05) 0px, transparent 60%);
  background-attachment: fixed;
}

img, picture, svg {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

ul, ol {
  list-style: none;
}

button, input, select, textarea {
  font: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

/* ==========================================================================
   LAYOUT & CONTAINER
   ========================================================================== */
.container {
  width: 100%;
  max-width: 1240px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.section {
  padding: 6.5rem 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 4rem auto;
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  border-radius: var(--radius-full);
  background: rgba(0, 242, 254, 0.1);
  border: 1px solid rgba(0, 242, 254, 0.25);
  color: var(--accent-cyan);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
  box-shadow: 0 0 15px rgba(0, 242, 254, 0.15);
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-pure);
  margin-bottom: 1.25rem;
  letter-spacing: -0.02em;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.text-gradient {
  background: var(--grad-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

/* ==========================================================================
   HEADER & NAVBAR
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 64px;
  z-index: 1000;
  transition: all var(--transition-normal);
  padding: 0.65rem 0;
  background: rgba(7, 11, 20, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
}

.site-header.scrolled {
  padding: 0.5rem 0;
  background: rgba(7, 11, 20, 0.98);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.6);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  height: 100%;
  flex-wrap: nowrap;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--font-heading);
  color: var(--text-pure);
  flex-shrink: 0;
  text-decoration: none;
}

.brand-logo-img {
  width: 28px;
  height: 28px;
  object-fit: contain;
  filter: drop-shadow(0 0 6px rgba(0, 242, 254, 0.45));
  flex-shrink: 0;
  display: block;
}

.brand-text {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 1px;
}

.brand-name {
  line-height: 1;
  font-size: 0.95rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  margin: 0;
}

.brand-tag {
  font-size: 0.52rem;
  color: var(--accent-cyan);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  line-height: 1;
  margin: 0;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-shrink: 1;
}

.nav-link {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: 0.35rem 0;
  white-space: nowrap;
}

.nav-link:hover, .nav-link.active {
  color: var(--text-pure);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--grad-accent);
  transition: width var(--transition-fast);
  border-radius: 2px;
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  padding: 8px;
}

.menu-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background-color: var(--text-pure);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

.menu-toggle.active span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* ==========================================================================
   BUTTONS & UI COMPONENTS
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.8rem 1.6rem;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-weight: 600;
  transition: all var(--transition-normal);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--grad-primary);
  color: #070b14;
  font-weight: 700;
  box-shadow: 0 4px 15px rgba(0, 242, 254, 0.35);
  position: relative;
  overflow: hidden;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 242, 254, 0.5);
  color: #05080e;
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-pure);
  border: 1px solid var(--border-subtle);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
  color: var(--accent-cyan);
}

.btn-outline-cyan {
  background: transparent;
  color: var(--accent-cyan);
  border: 1px solid rgba(0, 242, 254, 0.4);
}

.btn-outline-cyan:hover {
  background: rgba(0, 242, 254, 0.1);
  border-color: var(--accent-cyan);
  box-shadow: 0 0 15px rgba(0, 242, 254, 0.2);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.05rem;
  border-radius: var(--radius-md);
}

/* Glass Card */
.glass-card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.glass-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0%, transparent 60%);
  pointer-events: none;
}

.glass-card:hover {
  border-color: rgba(0, 242, 254, 0.3);
  transform: translateY(-5px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.5), var(--shadow-cyan-glow);
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero-section {
  padding-top: clamp(6.5rem, 11vh, 8.5rem);
  padding-bottom: 5rem;
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.95fr;
  gap: 3.5rem;
  align-items: center;
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 1.1rem;
  background: rgba(0, 242, 254, 0.08);
  border: 1px solid rgba(0, 242, 254, 0.25);
  border-radius: var(--radius-full);
  color: var(--accent-cyan);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 1.75rem;
  box-shadow: 0 0 20px rgba(0, 242, 254, 0.15);
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background-color: var(--accent-cyan);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--accent-cyan);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(0, 242, 254, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(0, 242, 254, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(0, 242, 254, 0); }
}

.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2.4rem, 4.2vw, 3.75rem);
  font-weight: 800;
  line-height: 1.12;
  color: var(--text-pure);
  margin-bottom: 1.5rem;
  letter-spacing: -0.03em;
}

.hero-description {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 2.25rem;
  max-width: 580px;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  margin-bottom: 3.5rem;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-subtle);
}

.stat-item {
  display: flex;
  flex-direction: column;
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 800;
  color: var(--text-pure);
  line-height: 1.1;
  background: var(--grad-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-top: 0.35rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Hero Media Showcase */
.hero-visual {
  position: relative;
}

.visual-frame {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--border-glow);
  box-shadow: var(--shadow-lg), var(--shadow-cyan-glow);
  background: #000;
}

.hero-img {
  width: 100%;
  height: 480px;
  object-fit: cover;
  display: block;
  filter: brightness(0.9) contrast(1.1);
  transition: transform var(--transition-normal);
}

.visual-frame:hover .hero-img {
  transform: scale(1.03);
}

/* Floating Status Cards over Visual */
.floating-badge-top {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background: rgba(13, 21, 39, 0.88);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(0, 242, 254, 0.4);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  z-index: 5;
}

.badge-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: rgba(0, 242, 254, 0.15);
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.badge-text-title {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-pure);
}

.badge-text-sub {
  font-size: 0.7rem;
  color: var(--accent-emerald);
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.floating-badge-bottom {
  position: absolute;
  bottom: 1.5rem;
  left: 1.5rem;
  background: rgba(13, 21, 39, 0.88);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(99, 102, 241, 0.4);
  padding: 0.85rem 1.25rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  z-index: 5;
  max-width: 240px;
}

.mini-graph {
  display: flex;
  align-items: flex-end;
  gap: 4px;
  height: 28px;
  margin-top: 0.5rem;
}

.graph-bar {
  flex: 1;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 2px;
}

.graph-bar:nth-child(1) { height: 40%; }
.graph-bar:nth-child(2) { height: 60%; }
.graph-bar:nth-child(3) { height: 75%; }
.graph-bar:nth-child(4) { height: 50%; }
.graph-bar:nth-child(5) { height: 90%; background: var(--accent-cyan); box-shadow: 0 0 8px var(--accent-cyan); }
.graph-bar:nth-child(6) { height: 100%; background: var(--accent-blue); }

/* ==========================================================================
   PARTNERS & TECH ECOSYSTEM
   ========================================================================== */
.ecosystem-bar {
  padding: 2.5rem 0;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  background: rgba(13, 21, 39, 0.4);
  position: relative;
  overflow: hidden;
}

.ecosystem-label {
  text-align: center;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.tech-badges-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 2rem;
}

.tech-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-secondary);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: all var(--transition-fast);
}

.tech-item:hover {
  color: var(--accent-cyan);
  border-color: rgba(0, 242, 254, 0.3);
  background: rgba(0, 242, 254, 0.06);
  transform: translateY(-2px);
}

.tech-icon {
  font-size: 1.2rem;
}

/* ==========================================================================
   SERVICES SECTION & FILTERS
   ========================================================================== */
.services-tabs {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 3.5rem;
}

.tab-btn {
  padding: 0.65rem 1.35rem;
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  transition: all var(--transition-fast);
}

.tab-btn:hover {
  color: var(--text-pure);
  background: rgba(255, 255, 255, 0.08);
}

.tab-btn.active {
  color: #070b14;
  background: var(--grad-primary);
  border-color: transparent;
  font-weight: 700;
  box-shadow: 0 4px 15px rgba(0, 242, 254, 0.3);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 2rem;
}

.service-card {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.service-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.service-icon-box {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: rgba(0, 242, 254, 0.1);
  border: 1px solid rgba(0, 242, 254, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  color: var(--accent-cyan);
  transition: all var(--transition-normal);
}

.service-card:hover .service-icon-box {
  background: var(--grad-primary);
  color: #070b14;
  transform: scale(1.1) rotate(5deg);
  box-shadow: var(--shadow-cyan-glow);
}

.service-tag {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-muted);
}

.service-title {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-pure);
  margin-bottom: 0.85rem;
  line-height: 1.3;
}

.service-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.service-features {
  margin-bottom: 1.75rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-subtle);
}

.service-feature-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.88rem;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.feature-check {
  color: var(--accent-cyan);
  font-size: 0.9rem;
}

.service-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border-subtle);
}

.card-link {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent-cyan);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.card-link:hover {
  gap: 0.7rem;
  color: #fff;
}

/* ==========================================================================
   SOLUTIONS & CASE STUDIES
   ========================================================================== */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.case-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.case-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-glow);
  box-shadow: var(--shadow-lg);
}

.case-img-wrap {
  height: 220px;
  position: relative;
  overflow: hidden;
}

.case-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.case-card:hover .case-img {
  transform: scale(1.08);
}

.case-industry {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background: rgba(7, 11, 20, 0.8);
  backdrop-filter: blur(8px);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-cyan);
  border: 1px solid rgba(0, 242, 254, 0.3);
}

.case-body {
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.case-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-pure);
  margin-bottom: 0.75rem;
  line-height: 1.35;
}

.case-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.case-metrics-box {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  padding: 1rem;
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius-md);
  margin-top: auto;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.case-metric-val {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--accent-cyan);
  line-height: 1.1;
}

.case-metric-lbl {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ==========================================================================
   WHY CHOOSE GAONA / VALUE PROPOSITION
   ========================================================================== */
.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.why-card {
  padding: 2.25rem 1.75rem;
}

.why-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(0, 242, 254, 0.2));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--accent-cyan);
  margin-bottom: 1.5rem;
  border: 1px solid rgba(0, 242, 254, 0.2);
}

.why-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-pure);
  margin-bottom: 0.75rem;
}

.why-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ==========================================================================
   INTERACTIVE COST ESTIMATOR / COTIZADOR
   ========================================================================== */
.estimator-wrapper {
  background: var(--bg-card);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-xl);
  padding: 3rem;
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-lg), var(--shadow-cyan-glow);
}

.estimator-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 3rem;
  align-items: start;
}

.estimator-step {
  margin-bottom: 2.25rem;
}

.step-label {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-pure);
  margin-bottom: 1rem;
}

.step-badge {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--grad-primary);
  color: #070b14;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 800;
}

.options-selector-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
}

.calc-option-card {
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.1rem;
  background: rgba(255, 255, 255, 0.03);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  user-select: none;
}

.calc-option-card:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(0, 242, 254, 0.4);
}

.calc-option-card.selected {
  background: rgba(0, 242, 254, 0.12);
  border-color: var(--accent-cyan);
  box-shadow: 0 0 15px rgba(0, 242, 254, 0.2);
}

.calc-option-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-pure);
}

.calc-option-desc {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.addon-checkbox-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1.25rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  background: rgba(255, 255, 255, 0.02);
  margin-bottom: 0.75rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.addon-checkbox-label:hover {
  background: rgba(255, 255, 255, 0.05);
}

.addon-checkbox-label input[type="checkbox"] {
  accent-color: var(--accent-cyan);
  width: 18px;
  height: 18px;
  cursor: pointer;
}

/* Estimator Live Output Panel */
.estimator-summary-panel {
  background: linear-gradient(180deg, rgba(19, 31, 56, 0.9) 0%, rgba(13, 21, 39, 0.95) 100%);
  border: 1px solid rgba(0, 242, 254, 0.3);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  box-shadow: var(--shadow-md);
  position: sticky;
  top: 6rem;
}

.summary-header {
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 1.25rem;
  margin-bottom: 1.5rem;
}

.summary-title {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-pure);
}

.estimate-price-box {
  margin-bottom: 1.75rem;
  text-align: center;
  padding: 1.25rem;
  background: rgba(0, 242, 254, 0.05);
  border-radius: var(--radius-md);
  border: 1px dashed rgba(0, 242, 254, 0.3);
}

.price-range-text {
  font-family: var(--font-heading);
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--accent-cyan);
  line-height: 1.1;
}

.price-disclaimer {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.5rem;
}

.summary-specs-list {
  margin-bottom: 2rem;
}

.spec-line {
  display: flex;
  justify-content: space-between;
  font-size: 0.88rem;
  margin-bottom: 0.75rem;
  color: var(--text-secondary);
}

.spec-line span:last-child {
  color: var(--text-pure);
  font-weight: 600;
}

/* ==========================================================================
   ABOUT US & PHILOSOPHY
   ========================================================================== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.5rem;
  align-items: center;
}

.about-features-list {
  display: grid;
  gap: 1.25rem;
  margin-top: 2rem;
}

.about-feature-box {
  display: flex;
  gap: 1rem;
  padding: 1.25rem;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  transition: all var(--transition-fast);
}

.about-feature-box:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(0, 242, 254, 0.25);
}

.about-icon {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: rgba(0, 242, 254, 0.1);
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

/* ==========================================================================
   TESTIMONIALS
   ========================================================================== */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.testimonial-card {
  padding: 2.25rem;
  display: flex;
  flex-direction: column;
}

.stars-rating {
  color: var(--accent-amber);
  margin-bottom: 1.25rem;
  font-size: 1.1rem;
  letter-spacing: 2px;
}

.testimonial-quote {
  font-size: 1rem;
  color: var(--text-primary);
  line-height: 1.65;
  font-style: italic;
  margin-bottom: 1.75rem;
  flex-grow: 1;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border-subtle);
}

.author-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--grad-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #070b14;
  font-weight: 700;
  font-size: 1.1rem;
}

.author-info h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-pure);
}

.author-info p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ==========================================================================
   FAQ ACCORDION
   ========================================================================== */
.faq-container {
  max-width: 850px;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  margin-bottom: 1rem;
  background: var(--bg-card);
  overflow: hidden;
  transition: all var(--transition-fast);
}

.faq-item:hover {
  border-color: rgba(0, 242, 254, 0.3);
}

.faq-item.active {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 15px rgba(0, 242, 254, 0.15);
}

.faq-question {
  width: 100%;
  padding: 1.5rem;
  text-align: left;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-pure);
  cursor: pointer;
}

.faq-icon-arrow {
  font-size: 1.2rem;
  color: var(--accent-cyan);
  transition: transform var(--transition-normal);
}

.faq-item.active .faq-icon-arrow {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease-out, padding 0.4s ease-out;
  padding: 0 1.5rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding-bottom: 1.5rem;
}

/* ==========================================================================
   CONTACT & APPOINTMENT SECTION
   ========================================================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 3.5rem;
}

.contact-info-panel {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.contact-card-item {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  padding: 1.25rem;
  border-radius: var(--radius-md);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  transition: all var(--transition-fast);
}

.contact-card-item:hover {
  border-color: rgba(0, 242, 254, 0.3);
  transform: translateX(5px);
}

.contact-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(0, 242, 254, 0.1);
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
}

.contact-card-item h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-pure);
  margin-bottom: 0.25rem;
}

.contact-card-item p, .contact-card-item a {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.contact-card-item a:hover {
  color: var(--accent-cyan);
}

/* Form Styles */
.form-card {
  background: var(--bg-card);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow-lg);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

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

.form-group.full-width {
  grid-column: span 2;
}

.form-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 0.85rem 1.15rem;
  background: rgba(7, 11, 20, 0.8);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-pure);
  font-size: 0.95rem;
  transition: all var(--transition-fast);
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 3px rgba(0, 242, 254, 0.15);
  background: rgba(13, 21, 39, 0.9);
}

.form-input:user-valid {
  border-color: rgba(16, 185, 129, 0.6);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

/* Appointment Quick Booking Tab */
.booking-calendar-box {
  background: rgba(7, 11, 20, 0.5);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  margin-top: 1rem;
}

.time-slots-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.time-slot-btn {
  padding: 0.5rem;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-weight: 600;
  text-align: center;
  transition: all var(--transition-fast);
}

.time-slot-btn:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
}

.time-slot-btn.selected {
  background: var(--accent-cyan);
  color: #070b14;
  border-color: var(--accent-cyan);
  font-weight: 700;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer {
  background: #04070d;
  border-top: 1px solid var(--border-subtle);
  padding: 5rem 0 2rem 0;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 3rem;
  margin-bottom: 4rem;
}

.footer-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-top: 1.25rem;
  max-width: 320px;
}

.footer-title {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-pure);
  margin-bottom: 1.25rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-links a {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.footer-links a:hover {
  color: var(--accent-cyan);
  transform: translateX(4px);
}

.newsletter-form {
  display: flex;
  gap: 0.5rem;
  margin-top: 1rem;
}

.newsletter-input {
  flex: 1;
  padding: 0.7rem 1rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: #fff;
  font-size: 0.85rem;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 0.85rem;
  color: var(--text-muted);
}

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

.social-icon-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
  transition: all var(--transition-fast);
}

.social-icon-btn:hover {
  color: var(--accent-cyan);
  border-color: var(--accent-cyan);
  background: rgba(0, 242, 254, 0.1);
  transform: translateY(-2px);
}

/* ==========================================================================
   MODALS & DIALOGS
   ========================================================================== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(4, 7, 13, 0.8);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.modal-backdrop.open {
  opacity: 1;
  visibility: visible;
}

.modal-content-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-xl);
  max-width: 650px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  padding: 2.5rem;
  position: relative;
  box-shadow: var(--shadow-lg), var(--shadow-cyan-glow);
  transform: scale(0.95);
  transition: transform var(--transition-normal);
}

.modal-backdrop.open .modal-content-card {
  transform: scale(1);
}

.modal-close-btn {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 1.2rem;
  transition: all var(--transition-fast);
}

.modal-close-btn:hover {
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
}

/* ==========================================================================
   FLOATING ELEMENTS & TOASTS
   ========================================================================== */
.floating-actions {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  z-index: 999;
}

.float-btn {
  width: 54px;
  height: 54px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  box-shadow: var(--shadow-lg);
  transition: all var(--transition-bounce);
}

.whatsapp-float {
  background: #25d366;
  color: #ffffff;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
}

.whatsapp-float:hover {
  transform: scale(1.1) rotate(8deg);
  box-shadow: 0 8px 25px rgba(37, 211, 102, 0.6);
}

.back-to-top {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-pure);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--grad-primary);
  color: #070b14;
  border-color: transparent;
  transform: translateY(-4px);
}

/* ==========================================================================
   CHATBOT WIDGET (GAONABOT)
   ========================================================================== */
.chat-trigger-btn {
  background: var(--grad-primary);
  color: #070b14;
  position: relative;
  box-shadow: 0 4px 20px rgba(0, 242, 254, 0.45);
  font-size: 1.4rem;
}

.chat-trigger-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 25px rgba(0, 242, 254, 0.7);
}

.chat-badge-pulse {
  position: absolute;
  top: -2px;
  right: -2px;
  width: 14px;
  height: 14px;
  background: var(--accent-cyan);
  border: 2px solid #070b14;
  border-radius: 50%;
  animation: pulse 2s infinite;
}

/* Chat Widget Container */
.chat-widget-box {
  position: fixed;
  bottom: 5.5rem;
  right: 2rem;
  width: 380px;
  max-width: calc(100vw - 2rem);
  height: 530px;
  max-height: calc(100vh - 7rem);
  background: rgba(13, 21, 39, 0.96);
  border: 1px solid var(--border-glow);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: var(--radius-xl);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.7), var(--shadow-cyan-glow);
  z-index: 1050;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px) scale(0.95);
  transition: all var(--transition-normal);
}

.chat-widget-box.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

/* Chat Header */
.chat-widget-header {
  padding: 0.9rem 1.15rem;
  background: linear-gradient(135deg, rgba(0, 242, 254, 0.15) 0%, rgba(99, 102, 241, 0.15) 100%);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.chat-bot-profile {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.chat-bot-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: rgba(0, 242, 254, 0.15);
  border: 1px solid var(--border-glow);
  padding: 3px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.chat-bot-avatar img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.chat-bot-name {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text-pure);
  line-height: 1.1;
}

.chat-bot-status {
  font-size: 0.72rem;
  color: var(--accent-emerald);
  display: flex;
  align-items: center;
  gap: 4px;
}

.chat-bot-status::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-emerald);
  box-shadow: 0 0 6px var(--accent-emerald);
}

.chat-ctrl-btn {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  transition: all var(--transition-fast);
}

.chat-ctrl-btn:hover {
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
}

/* Chat Messages Stream */
.chat-messages-body {
  flex: 1;
  overflow-y: auto;
  padding: 1.15rem;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  scroll-behavior: smooth;
}

.chat-msg {
  display: flex;
  flex-direction: column;
  max-width: 86%;
  font-size: 0.88rem;
  line-height: 1.5;
  animation: fadeInMsg 0.25s ease-out;
}

@keyframes fadeInMsg {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.chat-msg.bot {
  align-self: flex-start;
}

.chat-msg.user {
  align-self: flex-end;
}

.chat-bubble {
  padding: 0.75rem 0.95rem;
  border-radius: var(--radius-md);
  position: relative;
}

.chat-msg.bot .chat-bubble {
  background: rgba(26, 38, 66, 0.95);
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
  border-top-left-radius: 2px;
}

.chat-msg.user .chat-bubble {
  background: var(--grad-primary);
  color: #070b14;
  font-weight: 600;
  border-top-right-radius: 2px;
}

.chat-msg-time {
  font-size: 0.68rem;
  color: var(--text-muted);
  margin-top: 3px;
  padding: 0 4px;
}

.chat-msg.user .chat-msg-time {
  text-align: right;
}

/* Chat Action Chips & Buttons */
.chat-chips-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.5rem;
}

.chat-chip-btn {
  padding: 0.35rem 0.75rem;
  background: rgba(0, 242, 254, 0.08);
  border: 1px solid rgba(0, 242, 254, 0.3);
  color: var(--accent-cyan);
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 600;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.chat-chip-btn:hover {
  background: rgba(0, 242, 254, 0.2);
  color: #fff;
  border-color: var(--accent-cyan);
  transform: translateY(-1px);
}

.chat-action-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 0.4rem 0.85rem;
  background: var(--grad-primary);
  color: #070b14 !important;
  font-weight: 700;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  margin-top: 0.5rem;
  margin-right: 0.4rem;
  text-decoration: none;
}

.chat-action-link:hover {
  filter: brightness(1.1);
  transform: translateY(-1px);
}

/* Typing Indicator Animation */
.typing-bubble {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 0.65rem 0.9rem;
}

.typing-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-cyan);
  animation: typingBounce 1.2s infinite ease-in-out;
}

.typing-dot:nth-child(2) { animation-delay: 0.2s; }
.typing-dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes typingBounce {
  0%, 80%, 100% { transform: translateY(0); opacity: 0.4; }
  40% { transform: translateY(-6px); opacity: 1; }
}

/* Chat Footer & Input */
.chat-widget-footer {
  padding: 0.75rem;
  border-top: 1px solid var(--border-subtle);
  background: rgba(7, 11, 20, 0.7);
}

.chat-input-form {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.chat-input-field {
  flex: 1;
  padding: 0.6rem 0.9rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: #fff;
  font-size: 0.86rem;
  outline: none;
  transition: all var(--transition-fast);
}

.chat-input-field:focus {
  border-color: var(--accent-cyan);
  background: rgba(255, 255, 255, 0.08);
}

.chat-send-btn {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background: var(--grad-primary);
  color: #070b14;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-weight: bold;
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

.chat-send-btn:hover {
  transform: scale(1.05);
  box-shadow: 0 0 12px rgba(0, 242, 254, 0.5);
}

/* Toast System */
.toast-container {
  position: fixed;
  top: 1.5rem;
  right: 1.5rem;
  z-index: 3000;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.toast-message {
  padding: 1rem 1.5rem;
  border-radius: var(--radius-md);
  background: rgba(13, 21, 39, 0.95);
  border: 1px solid var(--border-glow);
  backdrop-filter: blur(12px);
  color: var(--text-pure);
  font-size: 0.9rem;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  animation: slideInRight 0.35s ease forwards;
}

.toast-success {
  border-color: var(--accent-emerald);
}

.toast-success::before {
  content: '✓';
  color: var(--accent-emerald);
  font-weight: 900;
}

@keyframes slideInRight {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* ==========================================================================
   RESPONSIVE DESIGN (MEDIA QUERIES)
   ========================================================================== */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .hero-content {
    text-align: center;
  }

  .hero-description {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-cta-group {
    justify-content: center;
  }

  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .estimator-grid {
    grid-template-columns: 1fr;
  }

  .estimator-summary-panel {
    position: static;
  }

  .about-grid, .contact-grid {
    grid-template-columns: 1fr;
  }

  .cases-grid {
    grid-template-columns: 1fr;
  }

  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 1080px) {
  .menu-toggle {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    background: rgba(7, 11, 20, 0.98);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-subtle);
    flex-direction: column;
    padding: 2rem 1.5rem;
    gap: 1.5rem;
    max-height: 0;
    overflow: hidden;
    transition: all var(--transition-normal);
  }

  .nav-menu.active {
    max-height: 480px;
  }

  .nav-actions .btn-sm {
    display: none;
  }
}

@media (max-width: 768px) {

  .section {
    padding: 4.5rem 0;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  .form-group.full-width {
    grid-column: span 1;
  }

  .estimator-wrapper {
    padding: 1.75rem;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}