/* ============================================
   METECH - Monitored Equipment Tech
   Dark Theme Corporate Website
   ============================================ */

/* --- CSS Variables --- */
:root {
  --bg-primary: #0a0e17;
  --bg-secondary: #111827;
  --bg-card: #1a2332;
  --bg-card-hover: #1f2b3d;
  --bg-accent: #0f1a2e;

  --text-primary: #f0f4f8;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  --accent-blue: #3b82f6;
  --accent-blue-light: #60a5fa;
  --accent-cyan: #06b6d4;
  --accent-green: #10b981;
  --accent-orange: #f59e0b;
  --accent-red: #ef4444;

  --gradient-primary: linear-gradient(135deg, #3b82f6, #06b6d4);
  --gradient-hero: linear-gradient(135deg, #0a0e17 0%, #0f1a2e 50%, #0a0e17 100%);

  --border-color: #1e293b;
  --border-light: #2d3a4d;

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 20px rgba(59, 130, 246, 0.15);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  --transition: all 0.3s ease;
  --transition-slow: all 0.5s ease;
}

/* --- Navbar logo --- */
.navbar-logo-img {
  height: 160px;
  width: auto;
  transition: var(--transition);
}

.navbar.scrolled .navbar-logo-img {
  height: 120px;
}

.footer-logo-img {
  height: 147px;
  width: auto;
  margin-bottom: 16px;
}

/* --- Reset & Base --- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: inherit;
}

img {
  max-width: 100%;
  height: auto;
}

ul {
  list-style: none;
}

/* --- Utility --- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 100px 0;
}

.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent-cyan);
  margin-bottom: 12px;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 16px;
  line-height: 1.2;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 600px;
  line-height: 1.7;
}

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

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

.mx-auto {
  margin-left: auto;
  margin-right: auto;
}

/* --- Button --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  font-family: inherit;
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(59, 130, 246, 0.45);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-light);
}

.btn-outline:hover {
  border-color: var(--accent-blue);
  background: rgba(59, 130, 246, 0.08);
}

/* ============================================
   NAVBAR
   ============================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 16px 0;
  transition: var(--transition);
  background: transparent;
}

.navbar.scrolled {
  background: rgba(10, 14, 23, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  padding: 10px 0;
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.navbar-logo {
  font-size: 1.8rem;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.navbar-logo .me {
  color: var(--accent-blue);
}

.navbar-logo .tech {
  color: var(--text-primary);
  font-weight: 300;
  font-size: 1rem;
  vertical-align: super;
}

.navbar-tagline {
  font-size: 0.65rem;
  color: var(--text-muted);
  letter-spacing: 1.5px;
  text-transform: uppercase;
}

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

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: var(--transition);
}

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

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

.nav-cta {
  padding: 10px 22px !important;
  font-size: 0.85rem !important;
  border-radius: var(--radius-sm);
  background: var(--gradient-primary);
  color: white !important;
}

.nav-cta::after {
  display: none !important;
}

.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 15px rgba(59, 130, 246, 0.4);
}

/* Mobile menu */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: var(--transition);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  background: var(--gradient-hero);
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  animation: float 20s ease-in-out infinite;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.06) 0%, transparent 70%);
  border-radius: 50%;
  animation: float 15s ease-in-out infinite reverse;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0); }
  33% { transform: translate(30px, -30px); }
  66% { transform: translate(-20px, 20px); }
}

/* Grid pattern overlay */
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(59, 130, 246, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59, 130, 246, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.hero .container {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-content {
  padding-top: 160px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.2);
  border-radius: 50px;
  padding: 6px 16px;
  font-size: 0.8rem;
  color: var(--accent-blue-light);
  margin-bottom: 24px;
}

.hero-badge .dot {
  width: 6px;
  height: 6px;
  background: var(--accent-green);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 24px;
  letter-spacing: -1px;
}

.hero p {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 36px;
  max-width: 500px;
  line-height: 1.8;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  gap: 40px;
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--border-color);
}

.hero-stat {
  text-align: left;
}

.hero-stat .number {
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent-cyan);
}

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

/* Hero visual */
.hero-visual {
  position: relative;
  padding-top: 80px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-engine-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px;
  width: 100%;
  box-shadow: var(--shadow-lg);
  position: relative;
}

.engine-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.engine-title {
  font-size: 1rem;
  font-weight: 600;
}

.engine-status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  color: var(--accent-green);
}

.engine-status .status-dot {
  width: 8px;
  height: 8px;
  background: var(--accent-green);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

.engine-metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.metric-card {
  background: var(--bg-accent);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 16px;
}

.metric-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 8px;
}

.metric-value {
  font-size: 1.5rem;
  font-weight: 700;
}

.metric-value.green { color: var(--accent-green); }
.metric-value.blue { color: var(--accent-blue-light); }
.metric-value.cyan { color: var(--accent-cyan); }
.metric-value.orange { color: var(--accent-orange); }

.metric-bar {
  margin-top: 8px;
  height: 4px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 2px;
  overflow: hidden;
}

.metric-bar-fill {
  height: 100%;
  border-radius: 2px;
  transition: width 1.5s ease;
}

.metric-bar-fill.green { background: var(--accent-green); }
.metric-bar-fill.blue { background: var(--accent-blue); }
.metric-bar-fill.cyan { background: var(--accent-cyan); }
.metric-bar-fill.orange { background: var(--accent-orange); }

/* Floating badges around hero card */
.floating-badge {
  position: absolute;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 10px 16px;
  font-size: 0.78rem;
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: var(--shadow-md);
  animation: floatBadge 6s ease-in-out infinite;
  white-space: nowrap;
}

.floating-badge .badge-icon {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
}

.floating-badge:nth-child(1) {
  top: 100px;
  right: -20px;
  animation-delay: 0s;
}

.floating-badge:nth-child(2) {
  bottom: 60px;
  left: -30px;
  animation-delay: 2s;
}

.floating-badge:nth-child(3) {
  top: 60px;
  left: -10px;
  animation-delay: 4s;
}

@keyframes floatBadge {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

/* ============================================
   PROBLEMS SECTION
   ============================================ */
.problems {
  background:
    linear-gradient(rgba(17, 24, 39, 0.82), rgba(17, 24, 39, 0.82)),
    url('/img/caex.jpg') center/cover no-repeat;
}

.problems-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.problem-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 32px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.problem-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--accent-red);
  opacity: 0;
  transition: var(--transition);
}

.problem-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-light);
  box-shadow: var(--shadow-lg);
}

.problem-card:hover::before {
  opacity: 1;
}

.problem-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 20px;
  background: rgba(239, 68, 68, 0.1);
}

.problem-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.problem-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.problem-stat {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.problem-stat .value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent-red);
}

.problem-stat .desc {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ============================================
   SOLUTIONS SECTION
   ============================================ */
.solutions {
  position: relative;
}

.solutions-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  margin-bottom: 80px;
}

.solution-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.solution-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 36px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.solution-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  opacity: 0;
  transition: var(--transition);
}

.solution-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
  border-color: rgba(59, 130, 246, 0.3);
}

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

.solution-card.alpha::before { background: var(--accent-orange); }
.solution-card.dust::before { background: var(--accent-cyan); }
.solution-card.senquip::before { background: var(--accent-green); }
.solution-card.oil::before { background: var(--accent-blue); }

.solution-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 20px;
}

.solution-icon.alpha { background: rgba(245, 158, 11, 0.1); }
.solution-icon.dust { background: rgba(6, 182, 212, 0.1); }
.solution-icon.senquip { background: rgba(16, 185, 129, 0.1); }
.solution-icon.oil { background: rgba(59, 130, 246, 0.1); }

.solution-card h3 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.solution-card .badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 50px;
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge.alpha { background: rgba(245, 158, 11, 0.15); color: var(--accent-orange); }
.badge.dust { background: rgba(6, 182, 212, 0.15); color: var(--accent-cyan); }
.badge.senquip { background: rgba(16, 185, 129, 0.15); color: var(--accent-green); }
.badge.oil { background: rgba(59, 130, 246, 0.15); color: var(--accent-blue); }

.solution-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 20px;
}

.solution-features {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.solution-feature {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.solution-feature .check {
  color: var(--accent-green);
  font-size: 0.9rem;
  flex-shrink: 0;
}

/* ============================================
   DIESEL ENGINE GUARD (Feature Section)
   ============================================ */
.engine-guard {
  background: var(--bg-secondary);
  position: relative;
  overflow: hidden;
}

.engine-guard::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 40%;
  height: 100%;
  background: radial-gradient(ellipse at right, rgba(59, 130, 246, 0.05), transparent 70%);
  pointer-events: none;
}

.eg-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.eg-features {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-top: 36px;
}

.eg-feature {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.eg-feature-icon {
  width: 44px;
  height: 44px;
  min-width: 44px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  background: rgba(59, 130, 246, 0.1);
}

.eg-feature-text h4 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.eg-feature-text p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Comparison table */
.comparison-table {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.comparison-header {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
}

.comparison-header div {
  padding: 16px 24px;
  font-weight: 600;
  font-size: 0.9rem;
  text-align: center;
}

.comparison-header .reactive {
  background: rgba(239, 68, 68, 0.1);
  color: var(--accent-red);
}

.comparison-header .proactive {
  background: rgba(16, 185, 129, 0.1);
  color: var(--accent-green);
}

.comparison-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid var(--border-color);
}

.comparison-row div {
  padding: 16px 24px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.comparison-row div:first-child {
  border-right: 1px solid var(--border-color);
}

/* ============================================
   MT-DUST PARTICLE SHIELD SECTION
   ============================================ */
.particle-shield-section {
  background:
    linear-gradient(rgba(10, 14, 23, 0.82), rgba(10, 14, 23, 0.82)),
    url('/img/device-mockup-PANVaH0s.svg') center/cover no-repeat;
  position: relative;
  overflow: hidden;
}

.particle-shield-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 40%;
  height: 100%;
  background: radial-gradient(ellipse at left, rgba(6, 182, 212, 0.06), transparent 70%);
  pointer-events: none;
}

.ps-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.ps-image-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
}

.ps-device-img {
  width: 100%;
  max-width: 520px;
  height: auto;
  filter: drop-shadow(0 20px 40px rgba(6, 182, 212, 0.15));
}

/* Visual panel */
.ps-visual {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 28px;
  position: relative;
  overflow: hidden;
}


.ps-visual-header {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-color);
}

.ps-status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #06b6d4;
  box-shadow: 0 0 8px rgba(6, 182, 212, 0.7);
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.85); }
}

.ps-metrics-grid {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 20px;
}

.ps-metric {}

.ps-metric-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.ps-metric-value {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.ps-metric-value.cyan { color: #06b6d4; }

.ps-metric-bar {
  height: 4px;
  background: var(--border-color);
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: 4px;
}

.ps-metric-fill {
  height: 100%;
  border-radius: 2px;
  transition: width 1s ease;
}

.ps-metric-fill.safe { background: #10b981; }
.ps-metric-fill.warn { background: #f59e0b; }
.ps-metric-fill.danger { background: #ef4444; }

.ps-metric-status { font-size: 0.75rem; }
.ps-metric-status.safe-text { color: #10b981; }
.ps-metric-status.warn-text { color: #f59e0b; }
.ps-metric-status.danger-text { color: #ef4444; }

.ps-threshold-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 4px;
}

.ps-threshold {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
}

.ps-threshold.warn {
  background: rgba(245, 158, 11, 0.08);
  border: 1px solid rgba(245, 158, 11, 0.2);
}

.ps-threshold.danger {
  background: rgba(239, 68, 68, 0.08);
  border: 1px solid rgba(239, 68, 68, 0.2);
}

.ps-th-icon {
  font-size: 1.1rem;
}

.ps-threshold.warn .ps-th-icon { color: #f59e0b; }
.ps-threshold.danger .ps-th-icon { color: #ef4444; }

.ps-th-label { color: var(--text-muted); font-size: 0.75rem; margin-bottom: 2px; }

.ps-threshold.warn .ps-th-value { color: #f59e0b; font-weight: 700; }
.ps-threshold.danger .ps-th-value { color: #ef4444; font-weight: 700; }

/* Feature icon cyan variant */
.eg-feature-icon.cyan-icon {
  background: rgba(6, 182, 212, 0.1);
}

/* Gradient cyan for title */
.text-gradient-cyan {
  background: linear-gradient(135deg, #06b6d4, #3b82f6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

@media (max-width: 768px) {
  .ps-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .ps-layout > div:first-child {
    order: 2;
  }

  .ps-layout > div:last-child {
    order: 1;
  }
}

/* ============================================
   PARTNERS / BRANDS SECTION
   ============================================ */
.partners {
  position: relative;
}

.partners-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.partner-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 36px;
  text-align: center;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.partner-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
  border-color: rgba(59, 130, 246, 0.3);
}

.partner-logo {
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
}

.partner-logo img {
  max-height: 50px;
  max-width: 200px;
  object-fit: contain;
  transition: var(--transition);
}

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

.partner-logo-text {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 1px;
}

.partner-logo-text.senquip { color: var(--accent-green); }
.partner-logo-text.particle { color: var(--accent-cyan); }
.partner-logo-text.alpha { color: var(--accent-orange); }

.partner-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.partner-card .role {
  font-size: 0.8rem;
  color: var(--accent-cyan);
  margin-bottom: 16px;
  font-weight: 500;
}

.partner-card p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 20px;
}

.partner-features {
  display: flex;
  flex-direction: column;
  gap: 8px;
  text-align: left;
}

.partner-feature {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.partner-feature .icon {
  color: var(--accent-green);
  flex-shrink: 0;
}

.partner-logo-light {
  background: white;
  border-radius: 10px;
  padding: 10px 16px;
}

.partner-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 20px;
  font-size: 1rem;
  color: var(--accent-blue-light);
  font-weight: 600;
  transition: var(--transition);
}

.partner-link:hover {
  color: var(--accent-blue);
  gap: 10px;
}

/* ============================================
   SENQUIP PLATFORM SECTION
   ============================================ */
.platform {
  background:
    linear-gradient(rgba(17, 24, 39, 0.82), rgba(17, 24, 39, 0.82)),
    url('/img/senq.png') center/cover no-repeat;
}

.platform-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  margin-top: 48px;
}

.platform-features {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.platform-feature {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.platform-feature:hover {
  border-color: var(--border-light);
  background: var(--bg-card-hover);
}

.platform-feature-icon {
  width: 40px;
  height: 40px;
  min-width: 40px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(16, 185, 129, 0.1);
  font-size: 1.1rem;
}

.platform-feature h4 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.platform-feature p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Platform visual (mockup card) */
.platform-visual {
  position: relative;
}

.platform-mockup {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.mockup-toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: var(--bg-accent);
  border-bottom: 1px solid var(--border-color);
}

.mockup-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.mockup-dot.red { background: #ef4444; }
.mockup-dot.yellow { background: #f59e0b; }
.mockup-dot.green { background: #10b981; }

.mockup-url {
  margin-left: 12px;
  font-size: 0.75rem;
  color: var(--text-muted);
  background: var(--bg-primary);
  padding: 4px 12px;
  border-radius: 4px;
  flex: 1;
}

.mockup-body {
  padding: 24px;
}

.mockup-dashboard {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 12px;
  margin-bottom: 16px;
}

.mockup-widget {
  background: var(--bg-accent);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 14px;
}

.mockup-widget .w-label {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.mockup-widget .w-value {
  font-size: 1.3rem;
  font-weight: 700;
  margin-top: 4px;
}

.mockup-chart {
  background: var(--bg-accent);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 16px;
  height: 120px;
  position: relative;
  overflow: hidden;
}

.mockup-chart-label {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.chart-bars {
  display: flex;
  align-items: flex-end;
  gap: 6px;
  height: 70px;
  margin-top: 12px;
}

.chart-bar {
  flex: 1;
  border-radius: 3px 3px 0 0;
  min-height: 8px;
  transition: height 1s ease;
}

/* ============================================
   IMPLEMENTATIONS SECTION
   ============================================ */
.implementations {
  position: relative;
}

.impl-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.impl-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 28px;
  transition: var(--transition);
}

.impl-card:hover {
  border-color: var(--border-light);
  transform: translateY(-2px);
}

.impl-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  background: rgba(59, 130, 246, 0.1);
  margin-bottom: 16px;
}

.impl-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.impl-card .model {
  font-size: 0.82rem;
  color: var(--accent-cyan);
  margin-bottom: 12px;
}

.impl-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.impl-tag {
  display: inline-block;
  font-size: 0.72rem;
  padding: 3px 10px;
  border-radius: 50px;
  background: rgba(59, 130, 246, 0.1);
  color: var(--accent-blue-light);
  margin-top: 12px;
  margin-right: 4px;
}

/* ============================================
   BENEFITS / ROI SECTION
   ============================================ */
.benefits {
  background: var(--bg-secondary);
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.benefit-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 32px 24px;
  text-align: center;
  transition: var(--transition);
}

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

.benefit-number {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.benefit-card h3 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.benefit-card p {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ============================================
   CONTACT SECTION
   ============================================ */
.contact {
  position: relative;
}

.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  margin-top: 48px;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.contact-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.contact-icon {
  width: 44px;
  height: 44px;
  min-width: 44px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  background: rgba(59, 130, 246, 0.1);
}

.contact-item h4 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.contact-item p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.contact-item a {
  color: var(--accent-blue-light);
  transition: var(--transition);
}

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

/* Contact form */
.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 36px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 8px;
  color: var(--text-secondary);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-accent);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.9rem;
  transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-submit {
  width: 100%;
  margin-top: 8px;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 60px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
}

.footer-brand .navbar-logo {
  font-size: 1.5rem;
  margin-bottom: 12px;
}

.footer-brand p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 300px;
}

.footer-col h4 {
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.footer-col a {
  display: block;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 10px;
  transition: var(--transition);
}

.footer-col a:hover {
  color: var(--text-primary);
  padding-left: 4px;
}

.footer-bottom {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

/* ============================================
   IMAGE BANNERS / DIVIDERS
   ============================================ */
.image-banner {
  position: relative;
  height: 350px;
  overflow: hidden;
}

.image-banner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.image-banner .overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, var(--bg-primary) 0%, rgba(10, 14, 23, 0.3) 30%, rgba(10, 14, 23, 0.3) 70%, var(--bg-secondary) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
}

.image-banner .overlay-text {
  text-align: center;
  position: relative;
  z-index: 2;
}

.image-banner .overlay-text h3 {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 8px;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.6);
}

.image-banner .overlay-text p {
  font-size: 1rem;
  color: var(--text-secondary);
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.8);
}

/* Banner variant that transitions FROM secondary TO primary */
.image-banner.to-primary .overlay {
  background: linear-gradient(180deg, var(--bg-secondary) 0%, rgba(17, 24, 39, 0.3) 30%, rgba(10, 14, 23, 0.3) 70%, var(--bg-primary) 100%);
}

/* Banner variant: secondary to secondary */
.image-banner.sec-to-sec .overlay {
  background: linear-gradient(180deg, var(--bg-secondary) 0%, rgba(17, 24, 39, 0.3) 30%, rgba(17, 24, 39, 0.3) 70%, var(--bg-secondary) 100%);
}

/* Banner variant: primary to secondary */
.image-banner.pri-to-sec .overlay {
  background: linear-gradient(180deg, var(--bg-primary) 0%, rgba(10, 14, 23, 0.3) 30%, rgba(17, 24, 39, 0.3) 70%, var(--bg-secondary) 100%);
}

/* Image gallery strip */
.image-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 4px;
  margin-top: 48px;
}

.image-strip .strip-item {
  position: relative;
  height: 200px;
  overflow: hidden;
  border-radius: var(--radius-sm);
}

.image-strip .strip-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.image-strip .strip-item:hover img {
  transform: scale(1.08);
}

.image-strip .strip-item .strip-label {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 12px;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-primary);
}

/* Implementation card images */
.impl-image {
  width: 100%;
  height: 160px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: 16px;
}

.impl-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.impl-card:hover .impl-image img {
  transform: scale(1.05);
}

@media (max-width: 768px) {
  .image-banner {
    height: 220px;
  }

  .image-banner .overlay-text h3 {
    font-size: 1.3rem;
  }

  .image-strip {
    grid-template-columns: 1fr 1fr;
  }

  .image-strip .strip-item {
    height: 150px;
  }
}

/* ============================================
   SCROLL ANIMATIONS
   ============================================ */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .hero .container {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    display: none;
  }

  .hero h1 {
    font-size: 2.8rem;
  }

  .problems-grid,
  .partners-grid,
  .impl-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .solution-cards {
    grid-template-columns: 1fr;
  }

  .eg-layout,
  .ps-layout,
  .platform-layout,
  .contact-layout,
  .solutions-intro {
    grid-template-columns: 1fr;
  }

  .ps-layout > div:first-child { order: 2; }
  .ps-layout > div:last-child  { order: 1; }

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

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

@media (max-width: 768px) {
  .section {
    padding: 60px 0;
  }

  .section-title {
    font-size: 1.8rem;
  }

  /* Logo navbar reducido en móvil */
  .navbar-logo-img {
    height: 70px;
  }

  .navbar.scrolled .navbar-logo-img {
    height: 55px;
  }

  .footer-logo-img {
    height: 80px;
  }

  .hero {
    min-height: auto;
    padding: 100px 0 60px;
  }

  .hero-content {
    padding-top: 90px;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero-stats {
    flex-direction: column;
    gap: 20px;
  }

  .hero-buttons {
    flex-direction: column;
    gap: 12px;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: rgba(10, 14, 23, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 24px;
    border-bottom: 1px solid var(--border-color);
    gap: 20px;
  }

  .nav-links.active {
    display: flex;
  }

  .nav-toggle {
    display: flex;
  }

  /* Grids a 1 columna */
  .problems-grid,
  .partners-grid,
  .impl-grid,
  .benefits-grid {
    grid-template-columns: 1fr;
  }

  /* Tabla comparativa apilada */
  .comparison-header,
  .comparison-row {
    grid-template-columns: 1fr;
  }

  .comparison-header .reactive {
    border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  }

  .comparison-row div:first-child {
    border-right: none;
    border-bottom: 1px solid var(--border-color);
  }

  .comparison-header div,
  .comparison-row div {
    padding: 12px 14px;
    font-size: 0.82rem;
  }

  /* Métricas 2 columnas en pantallas chicas */
  .ps-threshold-row {
    grid-template-columns: 1fr;
  }

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

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

  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

  /* Secciones con imagen de fondo: ajuste para móvil */
  .problems,
  .particle-shield-section,
  .platform {
    background-size: cover;
    background-position: center;
  }
}