/* ========================================
   LED STAR SERVICE — Main Stylesheet
   Design: Industrial / Tech / Bold Red
   ======================================== */

/* ── CSS Variables ── */
:root {
  --red: #e01010;
  --red-dark: #b00000;
  --red-glow: rgba(224, 16, 16, 0.35);
  --dark: #0a0a0a;
  --dark-2: #111111;
  --dark-3: #1a1a1a;
  --dark-4: #222222;
  --mid: #2e2e2e;
  --border: rgba(255,255,255,0.08);
  --text: #e8e8e8;
  --text-muted: #888;
  --text-dim: #555;
  --white: #ffffff;
  --font-display: 'Bebas Neue', sans-serif;
  --font-cond: 'Barlow Condensed', sans-serif;
  --font-body: 'Barlow', sans-serif;
  --radius: 4px;
  --radius-lg: 10px;
  --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--dark);
  color: var(--text);
  overflow-x: hidden;
  line-height: 1.6;
}

::selection { background: var(--red); color: var(--white); }

a { text-decoration: none; color: inherit; transition: var(--transition); }
img { max-width: 100%; display: block; }
ul { list-style: none; padding: 0; }

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--dark-2); }
::-webkit-scrollbar-thumb { background: var(--red); border-radius: 3px; }

/* ========================================
   NAVIGATION
   ======================================== */
#mainNav {
  background: transparent;
  padding: 16px 0;
  transition: background 0.4s ease, padding 0.4s ease, box-shadow 0.4s ease;
  z-index: 1000;
}

#mainNav.scrolled {
  background: rgba(10, 10, 10, 0.97);
  padding: 10px 0;
  box-shadow: 0 2px 30px rgba(0,0,0,0.6);
  border-bottom: 1px solid var(--border);
}

.navbar-brand {
  font-family: var(--font-display);
  font-size: 1.5rem;
  letter-spacing: 2px;
  line-height: 1;
}

.brand-led { color: var(--white); }
.brand-star { color: var(--red); }
.brand-service {
  display: block;
  font-size: 0.55rem;
  letter-spacing: 6px;
  color: var(--text-muted);
  margin-top: -2px;
}

.navbar-nav .nav-link {
  font-family: var(--font-cond);
  font-size: 0.85rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 6px 14px;
  transition: color 0.2s;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active { color: var(--white); }

.nav-cta {
  background: var(--red) !important;
  color: var(--white) !important;
  border-radius: var(--radius);
  padding: 8px 20px !important;
}

.nav-cta:hover { background: var(--red-dark) !important; }

/* Toggler */
.navbar-toggler { border: none; background: none; padding: 8px; }
.toggler-icon {
  display: block;
  width: 22px; height: 2px;
  background: var(--text);
  margin: 4px 0;
  transition: var(--transition);
}

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

.hero-bg {
  position: absolute; inset: 0;
  z-index: 0;
}

.hero-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(224,16,16,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(224,16,16,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  animation: gridPan 20s linear infinite;
}

@keyframes gridPan {
  0% { transform: translateY(0); }
  100% { transform: translateY(60px); }
}

.scanline {
  position: absolute; inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0,0,0,0.15) 2px,
    rgba(0,0,0,0.15) 4px
  );
  pointer-events: none;
}

/* Radial glow bottom-right */
#hero::after {
  content: '';
  position: absolute;
  bottom: -20%; right: -10%;
  width: 700px; height: 700px;
  background: radial-gradient(circle, rgba(224,16,16,0.12) 0%, transparent 65%);
  pointer-events: none;
}

.hero-particles {
  position: absolute; inset: 0;
  z-index: 0;
  pointer-events: none;
}

.particle {
  position: absolute;
  width: 2px; height: 2px;
  background: var(--red);
  border-radius: 50%;
  opacity: 0;
  animation: floatUp linear infinite;
}

@keyframes floatUp {
  0%   { transform: translateY(0) scale(1); opacity: 0; }
  10%  { opacity: 0.8; }
  90%  { opacity: 0.3; }
  100% { transform: translateY(-100vh) scale(0); opacity: 0; }
}

#hero .container { position: relative; z-index: 1; }

.hero-eyebrow {
  font-family: var(--font-cond);
  font-size: 0.78rem;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 16px;
  opacity: 0;
  animation: fadeInUp 0.6s ease forwards 0.3s;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(4rem, 9vw, 9rem);
  line-height: 0.92;
  color: var(--white);
  margin-bottom: 24px;
}

.hero-title .line-reveal {
  display: block;
  opacity: 0;
  transform: translateY(30px);
  animation: lineReveal 0.7s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.hero-title .line-reveal:first-child { animation-delay: 0.5s; }
.hero-title .line-reveal.delay-1 {
  animation-delay: 0.75s;
  -webkit-text-stroke: 2px var(--red);
  color: transparent;
}

@keyframes lineReveal {
  to { opacity: 1; transform: translateY(0); }
}

.hero-subtitle {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 500px;
  margin-bottom: 36px;
  line-height: 1.7;
  opacity: 0;
  animation: fadeInUp 0.6s ease forwards 1s;
}

.hero-actions {
  display: flex; gap: 16px; flex-wrap: wrap;
  margin-bottom: 48px;
  opacity: 0;
  animation: fadeInUp 0.6s ease forwards 1.2s;
}

.btn-primary-custom {
  font-family: var(--font-cond);
  font-size: 0.85rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  background: var(--red);
  color: var(--white);
  padding: 14px 32px;
  border-radius: var(--radius);
  display: inline-block;
  transition: var(--transition);
  border: 2px solid var(--red);
  position: relative;
  overflow: hidden;
}

.btn-primary-custom::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.1);
  transform: translateX(-100%);
  transition: transform 0.3s;
}

.btn-primary-custom:hover::before { transform: translateX(0); }
.btn-primary-custom:hover { background: var(--red-dark); border-color: var(--red-dark); color: var(--white); box-shadow: 0 0 25px var(--red-glow); }

.btn-outline-custom {
  font-family: var(--font-cond);
  font-size: 0.85rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  background: transparent;
  color: var(--white);
  padding: 14px 32px;
  border-radius: var(--radius);
  border: 2px solid var(--border);
  display: inline-block;
  transition: var(--transition);
}

.btn-outline-custom:hover { border-color: var(--red); color: var(--red); }

/* Hero Stats */
.hero-stats {
  display: flex; gap: 0; align-items: center;
  opacity: 0;
  animation: fadeInUp 0.6s ease forwards 1.4s;
}

.stat-item { text-align: left; padding: 0 28px 0 0; }
.stat-item:first-child { padding-left: 0; }

.stat-num {
  font-family: var(--font-display);
  font-size: 2.2rem;
  color: var(--red);
  line-height: 1;
}

.stat-plus { font-family: var(--font-display); font-size: 1.5rem; color: var(--red); }
.stat-label {
  display: block;
  font-size: 0.68rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-top: 2px;
}

.stat-divider {
  width: 1px; height: 40px;
  background: var(--border);
  margin-right: 28px;
  flex-shrink: 0;
}

/* Hero Screen Mock */
.hero-screen-mock {
  position: relative;
  opacity: 0;
  animation: fadeInRight 0.8s ease forwards 1s;
}

.screen-frame {
  width: 280px;
  filter: drop-shadow(0 20px 60px rgba(224,16,16,0.3));
}

.screen-inner {
  background: var(--dark-3);
  border: 3px solid var(--mid);
  border-radius: 6px;
  overflow: hidden;
  aspect-ratio: 16/10;
}

.screen-content {
  width: 100%; height: 100%;
  position: relative;
  display: flex; align-items: center; justify-content: center;
  background: #050505;
}

.pixel-grid {
  position: absolute; inset: 0;
  background-image: radial-gradient(circle, var(--red) 1px, transparent 1px);
  background-size: 8px 8px;
  opacity: 0.4;
  animation: pixelPulse 2s ease-in-out infinite;
}

@keyframes pixelPulse {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 0.7; }
}

.screen-text {
  font-family: var(--font-display);
  font-size: 1.8rem;
  color: var(--red);
  letter-spacing: 4px;
  text-shadow: 0 0 20px var(--red), 0 0 40px var(--red-glow);
  position: relative;
  z-index: 1;
  animation: textGlow 2s ease-in-out infinite;
}

@keyframes textGlow {
  0%, 100% { text-shadow: 0 0 10px var(--red), 0 0 30px rgba(224,16,16,0.4); }
  50% { text-shadow: 0 0 20px var(--red), 0 0 60px rgba(224,16,16,0.6), 0 0 80px rgba(224,16,16,0.2); }
}

.screen-stand {
  width: 60px; height: 4px;
  background: var(--mid);
  margin: 0 auto;
  border-radius: 0 0 4px 4px;
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 40px; left: 50%;
  transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  font-family: var(--font-cond);
  font-size: 0.7rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--text-dim);
  animation: fadeInUp 0.6s ease forwards 2s, opacity 0;
  z-index: 2;
}

.scroll-arrow {
  width: 20px; height: 20px;
  border-right: 2px solid var(--text-dim);
  border-bottom: 2px solid var(--text-dim);
  transform: rotate(45deg);
  animation: scrollBounce 1.5s ease-in-out infinite;
}

@keyframes scrollBounce {
  0%, 100% { transform: rotate(45deg) translateY(0); }
  50% { transform: rotate(45deg) translateY(6px); }
}

/* ========================================
   TICKER BAR
   ======================================== */
.ticker-bar {
  background: var(--red);
  padding: 12px 0;
  overflow: hidden;
  position: relative;
}

.ticker-track {
  display: flex; gap: 0; white-space: nowrap;
  animation: tickerScroll 30s linear infinite;
}

.ticker-track span {
  font-family: var(--font-cond);
  font-size: 0.75rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: rgba(255,255,255,0.9);
  padding: 0 20px;
  flex-shrink: 0;
}

.ticker-dot { color: rgba(255,255,255,0.5) !important; padding: 0 4px !important; }

@keyframes tickerScroll {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ========================================
   SECTION SHARED STYLES
   ======================================== */
section { padding: 100px 0; }

.section-label {
  font-family: var(--font-cond);
  font-size: 0.72rem;
  letter-spacing: 5px;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 12px;
  display: flex; align-items: center; gap: 12px;
}

.section-label::before {
  content: '';
  display: inline-block;
  width: 24px; height: 2px;
  background: var(--red);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 4rem);
  line-height: 1;
  color: var(--white);
  margin-bottom: 20px;
}

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

.section-body {
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.75;
  max-width: 580px;
  margin-bottom: 16px;
}

.section-intro {
  font-size: 1.05rem;
  color: var(--text-muted);
  margin-bottom: 48px;
  max-width: 600px;
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInRight {
  from { opacity: 0; transform: translateX(40px); }
  to   { opacity: 1; transform: translateX(0); }
}

.fade-in-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ========================================
   ABOUT
   ======================================== */
.section-about {
  background: var(--dark-2);
  border-top: 1px solid var(--border);
}

.about-visual { position: relative; padding: 20px; }

.about-card-main {
  background: var(--dark-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  position: relative;
  overflow: hidden;
}

.card-glow {
  position: absolute; top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--red), transparent);
  animation: glowSweep 3s ease-in-out infinite;
}

@keyframes glowSweep {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 1; }
}

.about-icon-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-bottom: 16px;
}

.icon-cell {
  background: var(--mid);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 8px;
  text-align: center;
  font-family: var(--font-cond);
  font-size: 0.85rem;
  letter-spacing: 1px;
  color: var(--text-dim);
  transition: var(--transition);
  cursor: default;
}

.icon-cell:hover, .icon-cell.active {
  background: rgba(224,16,16,0.15);
  border-color: var(--red);
  color: var(--red);
}

.card-caption {
  font-size: 0.72rem;
  color: var(--text-dim);
  letter-spacing: 2px;
  text-transform: uppercase;
  text-align: center;
}

.about-badge-1, .about-badge-2 {
  position: absolute;
  font-family: var(--font-cond);
  font-size: 0.72rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 8px 14px;
  border-radius: var(--radius);
}

.about-badge-1 {
  background: var(--red);
  color: var(--white);
  top: 0; right: 0;
  font-size: 0.8rem;
}

.about-badge-1 span { font-size: 1rem; }

.about-badge-2 {
  background: var(--dark-4);
  border: 1px solid var(--border);
  color: var(--text-muted);
  bottom: 0; left: 0;
  font-size: 0.65rem;
  line-height: 1.5;
}

.about-values { margin-top: 32px; display: flex; flex-direction: column; gap: 20px; }

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

.value-icon {
  font-size: 1.4rem;
  flex-shrink: 0;
  width: 40px; height: 40px;
  background: rgba(224,16,16,0.1);
  border: 1px solid rgba(224,16,16,0.2);
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
}

.value-item strong { display: block; color: var(--white); font-size: 0.95rem; margin-bottom: 2px; }
.value-item p { font-size: 0.88rem; color: var(--text-muted); margin: 0; }

/* ========================================
   TIMELINE
   ======================================== */
.section-timeline { background: var(--dark); }
.section-timeline .section-label, .section-timeline .section-title { text-align: center; justify-content: center; }
.section-timeline .section-label::before { display: none; }

.timeline {
  position: relative;
  max-width: 800px;
  margin: 60px auto 0;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50%; top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, transparent, var(--red), var(--mid), var(--mid), transparent);
  transform: translateX(-50%);
}

.tl-item {
  display: flex;
  justify-content: flex-end;
  padding-right: calc(50% + 40px);
  margin-bottom: 40px;
  position: relative;
}

.tl-item.right {
  justify-content: flex-start;
  padding-right: 0;
  padding-left: calc(50% + 40px);
}

.tl-dot {
  position: absolute;
  left: 50%; top: 20px;
  width: 14px; height: 14px;
  background: var(--red);
  border: 3px solid var(--dark);
  border-radius: 50%;
  transform: translateX(-50%);
  box-shadow: 0 0 0 3px rgba(224,16,16,0.3);
  transition: var(--transition);
}

.tl-item.visible .tl-dot {
  box-shadow: 0 0 0 6px rgba(224,16,16,0.2), 0 0 20px var(--red-glow);
}

.tl-card {
  background: var(--dark-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  max-width: 300px;
  transition: var(--transition);
}

.tl-card:hover { border-color: var(--red); transform: translateY(-3px); }

.tl-year {
  font-family: var(--font-display);
  font-size: 1.8rem;
  color: var(--red);
  line-height: 1;
  display: block;
  margin-bottom: 6px;
}

.tl-card h4 { font-size: 1rem; color: var(--white); margin-bottom: 8px; }
.tl-card p { font-size: 0.88rem; color: var(--text-muted); margin: 0; }

/* ========================================
   SERVICES
   ======================================== */
.section-services {
  background: var(--dark-2);
  border-top: 1px solid var(--border);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.service-card {
  background: var(--dark-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  animation-delay: calc(var(--i) * 0.08s);
}

.service-card::before {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 3px;
  background: var(--red);
  transform: scaleX(0);
  transition: transform 0.3s;
  transform-origin: left;
}

.service-card:hover::before { transform: scaleX(1); }
.service-card:hover { border-color: rgba(224,16,16,0.3); transform: translateY(-5px); box-shadow: 0 20px 40px rgba(0,0,0,0.4); }

.service-card.featured {
  border-color: rgba(224,16,16,0.3);
  background: linear-gradient(135deg, var(--dark-3), rgba(224,16,16,0.06));
}

.service-card.featured::before { transform: scaleX(1); }

.service-icon { font-size: 2rem; margin-bottom: 16px; }
.service-card h3 { font-size: 1.1rem; color: var(--white); margin-bottom: 10px; }
.service-card p { font-size: 0.88rem; color: var(--text-muted); margin-bottom: 16px; line-height: 1.6; }

.service-tag {
  font-family: var(--font-cond);
  font-size: 0.68rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--red);
  background: rgba(224,16,16,0.1);
  border: 1px solid rgba(224,16,16,0.2);
  padding: 4px 10px;
  border-radius: 20px;
  display: inline-block;
}

/* ========================================
   PRODUCTS
   ======================================== */
.section-products { background: var(--dark); }

.product-tabs {
  display: flex; gap: 4px;
  background: var(--dark-3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 4px;
  width: fit-content;
  margin: 40px 0 48px;
}

.ptab {
  font-family: var(--font-cond);
  font-size: 0.82rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  background: none;
  border: none;
  color: var(--text-dim);
  padding: 10px 24px;
  border-radius: calc(var(--radius) - 2px);
  cursor: pointer;
  transition: var(--transition);
}

.ptab:hover { color: var(--text); }
.ptab.active { background: var(--red); color: var(--white); }

.ppanel { display: none; }
.ppanel.active { display: block; }

.product-visual {
  display: flex; flex-direction: column; align-items: center; gap: 0;
}

.pv-screen {
  background: var(--dark-3);
  border: 3px solid var(--mid);
  border-radius: 6px;
  overflow: hidden;
  width: 100%;
  aspect-ratio: 16/10;
  position: relative;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 20px 60px rgba(0,0,0,0.6), 0 0 0 1px rgba(224,16,16,0.1);
}

.pv-pixel-grid {
  position: absolute; inset: 0;
  animation: pixelPulse 3s ease-in-out infinite;
}

.pv-pixel-grid.outdoor {
  background-image: radial-gradient(circle, rgba(255,120,0,0.8) 1.5px, transparent 1.5px);
  background-size: 12px 12px;
  opacity: 0.5;
}

.pv-pixel-grid.indoor {
  background-image: radial-gradient(circle, rgba(0,150,255,0.8) 1px, transparent 1px);
  background-size: 6px 6px;
  opacity: 0.5;
}

.pv-pixel-grid.flexible {
  background-image: radial-gradient(circle, rgba(0,220,100,0.8) 1px, transparent 1px);
  background-size: 6px 6px;
  opacity: 0.5;
}

.pv-label {
  position: relative;
  z-index: 1;
  font-family: var(--font-display);
  font-size: 1.6rem;
  color: rgba(255,255,255,0.8);
  letter-spacing: 4px;
  text-shadow: 0 0 20px rgba(255,255,255,0.3);
}

.flex-screen { transform: perspective(600px) rotateY(-15deg); }

.pv-stand-base {
  width: 80px; height: 6px;
  background: linear-gradient(90deg, transparent, var(--mid), transparent);
  border-radius: 3px;
  margin-top: 4px;
}

.product-name {
  font-family: var(--font-display);
  font-size: 2.2rem;
  color: var(--white);
  margin-bottom: 12px;
}

.product-desc {
  font-size: 1rem;
  color: var(--text-muted);
  margin-bottom: 28px;
  line-height: 1.7;
}

.spec-grid { display: flex; flex-direction: column; gap: 0; }

.spec-row {
  display: flex; justify-content: space-between; align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
}

.spec-row span { color: var(--text-muted); }
.spec-row strong { color: var(--white); font-weight: 600; }

/* ========================================
   PROJECTS
   ======================================== */
.section-projects {
  background: var(--dark-2);
  border-top: 1px solid var(--border);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: auto auto;
  gap: 20px;
}

.proj-card {
  background: var(--dark-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
}

.proj-card:hover { border-color: rgba(224,16,16,0.4); transform: translateY(-4px); box-shadow: 0 20px 50px rgba(0,0,0,0.5); }

.proj-large { grid-column: span 2; }
.proj-wide  { grid-column: span 2; }

.proj-visual {
  height: 180px;
  position: relative;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}

.proj-large .proj-visual { height: 220px; }
.proj-wide  .proj-visual { height: 160px; }

.pv-yunusabad  { background: linear-gradient(135deg, #1a0505, #2d0a0a); }
.pv-karatash   { background: linear-gradient(135deg, #050a1a, #0a152d); }
.pv-sco        { background: linear-gradient(135deg, #05100a, #0a2015); }
.pv-hokimiyat  { background: linear-gradient(135deg, #12100a, #25200a); }
.pv-museum     { background: linear-gradient(135deg, #0a0510, #150a20); }
.pv-ecobozor   { background: linear-gradient(135deg, #050a05, #0a1a0a); }

.proj-screen-sim {
  border-radius: 4px;
  animation: screenFlicker 4s ease-in-out infinite;
}

@keyframes screenFlicker {
  0%, 90%, 100% { opacity: 1; }
  92%, 97% { opacity: 0.7; }
}

.proj-screen-sim.triple {
  width: 85%; height: 120px;
  background: linear-gradient(135deg, rgba(224,16,16,0.3), rgba(224,16,16,0.1));
  border: 1px solid rgba(224,16,16,0.5);
  box-shadow: 0 0 30px rgba(224,16,16,0.2), inset 0 0 20px rgba(224,16,16,0.1);
}

.proj-screen-sim.single.big {
  width: 70%; height: 100px;
  background: linear-gradient(135deg, rgba(0,100,255,0.3), rgba(0,100,255,0.1));
  border: 1px solid rgba(0,100,255,0.4);
  box-shadow: 0 0 30px rgba(0,100,255,0.15);
}

.proj-screen-sim.indoor-big {
  width: 80%; height: 80px;
  background: linear-gradient(135deg, rgba(0,200,100,0.2), rgba(0,200,100,0.05));
  border: 1px solid rgba(0,200,100,0.3);
}

.proj-screen-sim.indoor-wide {
  width: 85%; height: 80px;
  background: linear-gradient(135deg, rgba(255,200,0,0.2), rgba(255,200,0,0.05));
  border: 1px solid rgba(255,200,0,0.3);
}

.proj-screen-sim.indoor-medium {
  width: 75%; height: 80px;
  background: linear-gradient(135deg, rgba(150,0,255,0.2), rgba(150,0,255,0.05));
  border: 1px solid rgba(150,0,255,0.3);
}

.proj-screen-sim.outdoor-sq {
  width: 60%; height: 100px;
  background: linear-gradient(135deg, rgba(0,200,50,0.2), rgba(0,200,50,0.05));
  border: 1px solid rgba(0,200,50,0.3);
}

.proj-info { padding: 20px 24px; }
.proj-tag {
  font-family: var(--font-cond);
  font-size: 0.68rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--red);
  display: block;
  margin-bottom: 8px;
}

.proj-info h3 { font-size: 1.05rem; color: var(--white); margin-bottom: 8px; }
.proj-info p  { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 14px; line-height: 1.6; }

.proj-specs {
  display: flex; gap: 12px; flex-wrap: wrap;
}

.proj-specs span {
  font-family: var(--font-cond);
  font-size: 0.7rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  background: var(--mid);
  color: var(--text-dim);
  padding: 3px 10px;
  border-radius: 20px;
}

/* ========================================
   PARTNERS
   ======================================== */
.section-partners { background: var(--dark); }

.partner-card {
  background: var(--dark-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  height: 100%;
}

.partner-card:hover { border-color: rgba(224,16,16,0.3); transform: translateY(-4px); }

.partner-logo-area {
  height: 120px;
  display: flex; align-items: center; justify-content: center;
  border-bottom: 1px solid var(--border);
  background: var(--dark-4);
}

.partner-logo-mock {
  font-family: var(--font-display);
  font-size: 2rem;
  letter-spacing: 3px;
  text-align: center;
  line-height: 1.2;
}

.partner-logo-mock.qiangli { color: #ff8800; }
.partner-logo-mock.novastar { color: #00aaff; }
.partner-logo-mock.novastar span { color: var(--red); }

.partner-info { padding: 24px; }
.partner-type {
  font-family: var(--font-cond);
  font-size: 0.7rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--text-dim);
  display: block;
  margin-bottom: 10px;
}

.partner-info h3 { font-size: 1rem; color: var(--white); margin-bottom: 10px; line-height: 1.4; }
.partner-info p  { font-size: 0.88rem; color: var(--text-muted); margin-bottom: 14px; }

.partner-cert {
  font-family: var(--font-cond);
  font-size: 0.78rem;
  letter-spacing: 1px;
  color: #00cc66;
  background: rgba(0,204,102,0.08);
  border: 1px solid rgba(0,204,102,0.2);
  padding: 6px 14px;
  border-radius: 20px;
  display: inline-block;
}

/* ========================================
   CLIENTS
   ======================================== */
.section-clients {
  background: var(--dark-2);
  border-top: 1px solid var(--border);
}

.clients-marquee {
  overflow: hidden;
  padding: 8px 0;
  position: relative;
  margin-bottom: 60px;
}

.clients-marquee::before, .clients-marquee::after {
  content: '';
  position: absolute; top: 0; bottom: 0;
  width: 120px;
  z-index: 2;
}

.clients-marquee::before { left: 0; background: linear-gradient(90deg, var(--dark-2), transparent); }
.clients-marquee::after  { right: 0; background: linear-gradient(-90deg, var(--dark-2), transparent); }

.clients-track {
  display: flex; gap: 0; white-space: nowrap;
  animation: tickerScroll 30s linear infinite;
}

.client-pill {
  font-family: var(--font-cond);
  font-size: 0.82rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-muted);
  background: var(--dark-3);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 8px 20px;
  margin: 6px 6px;
  flex-shrink: 0;
  transition: var(--transition);
  display: inline-flex; align-items: center;
}

.client-pill:hover { border-color: var(--red); color: var(--red); }

.coverage-map {
  background: var(--dark-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
}

.coverage-map h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--white);
  margin-bottom: 24px;
}

.regions-grid { display: grid; grid-template-columns: 1fr auto; gap: 40px; align-items: start; }

.region-group h4 {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 14px;
  font-weight: 500;
}

.region-cities { display: flex; flex-wrap: wrap; gap: 8px; }
.region-cities span {
  font-family: var(--font-cond);
  font-size: 0.78rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--white);
  background: var(--mid);
  padding: 4px 12px;
  border-radius: 3px;
}

/* ========================================
   WHY US
   ======================================== */
.section-whyus { background: var(--dark); }

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.adv-card {
  background: var(--dark-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: var(--transition);
}

.adv-card:hover { border-color: rgba(224,16,16,0.3); }

.adv-num {
  font-family: var(--font-display);
  font-size: 2.5rem;
  color: rgba(224,16,16,0.2);
  line-height: 1;
  margin-bottom: 10px;
  transition: var(--transition);
}

.adv-card:hover .adv-num { color: var(--red); }
.adv-card h4 { font-size: 1rem; color: var(--white); margin-bottom: 8px; }
.adv-card p  { font-size: 0.85rem; color: var(--text-muted); margin: 0; }

/* ========================================
   CONTACT
   ======================================== */
.section-contact {
  background: var(--dark-2);
  border-top: 1px solid var(--border);
}

.contact-info { display: flex; flex-direction: column; gap: 24px; }

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

.ci-icon {
  font-size: 1.2rem;
  width: 44px; height: 44px;
  background: rgba(224,16,16,0.1);
  border: 1px solid rgba(224,16,16,0.2);
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}

.contact-item strong { display: block; color: var(--white); font-size: 0.8rem; letter-spacing: 2px; text-transform: uppercase; margin-bottom: 4px; }
.contact-item a { display: block; color: var(--text-muted); font-size: 0.95rem; transition: color 0.2s; }
.contact-item a:hover { color: var(--red); }
.contact-item span { color: var(--text-muted); font-size: 0.95rem; }

.social-links { display: flex; gap: 10px; margin-top: 8px; }

.social-btn {
  font-family: var(--font-cond);
  font-size: 0.72rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  background: var(--dark-3);
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 8px 16px;
  border-radius: var(--radius);
  transition: var(--transition);
}

.social-btn:hover { border-color: var(--red); color: var(--red); }

/* Contact Form */
.contact-form label {
  display: block;
  font-family: var(--font-cond);
  font-size: 0.72rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 6px;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  background: var(--dark-3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.95rem;
  padding: 12px 16px;
  transition: var(--transition);
  outline: none;
  -webkit-appearance: none;
}

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

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  border-color: var(--red);
  box-shadow: 0 0 0 3px rgba(224,16,16,0.1);
}

.contact-form select option { background: var(--dark-3); }
.contact-form textarea { resize: vertical; }

.btn-submit {
  font-family: var(--font-cond);
  font-size: 0.85rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  background: var(--red);
  color: var(--white);
  border: none;
  padding: 16px 40px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: var(--transition);
  display: flex; align-items: center; gap: 12px;
  width: 100%;
  justify-content: center;
}

.btn-submit:hover { background: var(--red-dark); box-shadow: 0 0 30px rgba(224,16,16,0.3); }

.btn-icon { font-size: 1.2rem; transition: transform 0.3s; }
.btn-submit:hover .btn-icon { transform: translateX(6px); }

.form-success {
  display: none;
  background: rgba(0,200,100,0.1);
  border: 1px solid rgba(0,200,100,0.3);
  border-radius: var(--radius);
  color: #00cc66;
  padding: 16px;
  text-align: center;
  margin-top: 16px;
  font-size: 0.9rem;
}

/* ========================================
   FOOTER
   ======================================== */
footer {
  background: #050505;
  border-top: 1px solid var(--border);
  padding: 60px 0 0;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 1.6rem;
  letter-spacing: 2px;
  margin-bottom: 10px;
  display: block;
}

.footer-tagline {
  font-style: italic;
  color: var(--red);
  font-size: 0.9rem;
  margin-bottom: 12px;
}

.footer-desc { font-size: 0.85rem; color: var(--text-dim); line-height: 1.7; }

footer h5 {
  font-family: var(--font-cond);
  font-size: 0.72rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 16px;
}

footer ul { display: flex; flex-direction: column; gap: 8px; }
footer ul a { font-size: 0.88rem; color: var(--text-muted); }
footer ul a:hover { color: var(--red); }
footer ul li:not(:has(a)) { font-size: 0.88rem; color: var(--text-dim); }

.footer-social { display: flex; gap: 8px; margin-top: 16px; }

.footer-social a {
  font-family: var(--font-cond);
  font-size: 0.68rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-dim);
  background: var(--dark-3);
  border: 1px solid var(--border);
  padding: 6px 14px;
  border-radius: var(--radius);
  transition: var(--transition);
}

.footer-social a:hover { border-color: var(--red); color: var(--red); }

.footer-bottom {
  border-top: 1px solid var(--border);
  margin-top: 48px;
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.78rem;
  color: var(--text-dim);
}

/* Back to top */
.back-to-top {
  position: fixed;
  bottom: 30px; right: 30px;
  width: 44px; height: 44px;
  background: var(--red);
  color: var(--white);
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem;
  opacity: 0; pointer-events: none;
  transition: var(--transition);
  z-index: 999;
}

.back-to-top.visible { opacity: 1; pointer-events: auto; }
.back-to-top:hover { background: var(--red-dark); color: var(--white); transform: translateY(-3px); }

/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width: 991px) {
  section { padding: 72px 0; }

  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .projects-grid { grid-template-columns: repeat(2, 1fr); }
  .proj-large, .proj-wide { grid-column: span 2; }

  .timeline::before { left: 20px; }
  .tl-item, .tl-item.right {
    padding-left: 56px;
    padding-right: 0;
    justify-content: flex-start;
  }
  .tl-dot { left: 20px; }
  .tl-card { max-width: 100%; }

  .regions-grid { grid-template-columns: 1fr; gap: 20px; }
  .advantages-grid { grid-template-columns: 1fr; }
}

@media (max-width: 767px) {
  section { padding: 60px 0; }

  .hero-title { font-size: clamp(3rem, 12vw, 5rem); }
  .hero-stats { flex-wrap: wrap; gap: 20px; }
  .stat-divider { display: none; }
  .stat-item { padding: 0; min-width: 45%; }

  .services-grid { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr; }
  .proj-large, .proj-wide { grid-column: span 1; }

  .product-tabs { flex-direction: column; width: 100%; }
  .ptab { text-align: center; }

  .coverage-map { padding: 20px; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }

  .section-title { font-size: 2.2rem; }
  .about-badge-1, .about-badge-2 { display: none; }
}

@media (max-width: 576px) {
  .hero-actions { flex-direction: column; }
  .btn-primary-custom, .btn-outline-custom { width: 100%; text-align: center; }
  .contact-info { gap: 16px; }
  .social-links { flex-wrap: wrap; }
}