/* ==========================================================================
   ASAD ENERGIYA — DESIGN SYSTEM & STYLESHEET
   Aesthetic: Industrial Luxury & High-Voltage Precision Engineering
   Colors: Obsidian Black, Corporate Crimson (#9E1B10), Platinum White
   Performance: Hardware Accelerated (60fps), Responsive, Glassmorphic
   ========================================================================== */

:root {
  /* Color Palette */
  --bg-primary: #080A0E;
  --bg-secondary: #0E1218;
  --bg-surface: #141923;
  --bg-surface-elevated: #1B2230;
  
  --crimson-base: #9E1B10;
  --crimson-hover: #B82114;
  --crimson-glow: rgba(184, 33, 20, 0.35);
  --crimson-gradient: linear-gradient(135deg, #9E1B10 0%, #D42817 100%);
  --crimson-subtle: rgba(158, 27, 16, 0.12);

  --text-primary: #F8FAFC;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;
  --text-inverse: #080A0E;

  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-focus: rgba(200, 35, 20, 0.6);
  --border-glass: rgba(255, 255, 255, 0.12);

  --gold-accent: #D4AF37;
  --cyan-accent: #38BDF8;

  /* Typography */
  --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  /* Layout & Spacing */
  --container-max: 1320px;
  --header-height: 84px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-pill: 9999px;

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: 0.2s var(--ease-out);
  --transition-med: 0.35s var(--ease-out);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  width: 100%;
}

body {
  overflow-x: hidden;
  width: 100%;
  position: relative;
  background-color: var(--bg-primary);
}

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

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

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

/* --- AMBIENT BACKGROUND GLOW --- */
.bg-ambient {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.bg-ambient::before {
  content: "";
  position: absolute;
  top: -15%;
  left: 50%;
  transform: translateX(-50%);
  width: 70vw;
  height: 60vh;
  background: radial-gradient(circle, rgba(158, 27, 16, 0.18) 0%, rgba(14, 18, 24, 0) 70%);
  filter: blur(80px);
}

/* --- GLASS PANEL ATOM --- */
.glass-panel {
  background: rgba(18, 23, 33, 0.7);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.glass-panel:hover {
  border-color: var(--border-glass);
}

/* --- BADGES & EYEBROWS --- */
.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: var(--crimson-subtle);
  border: 1px solid rgba(184, 33, 20, 0.3);
  color: #F87171;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: var(--radius-pill);
  margin-bottom: 16px;
}

.section-badge::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  background: #EF4444;
  border-radius: 50%;
  box-shadow: 0 0 10px #EF4444;
}

.section-header {
  text-align: center;
  max-width: 840px;
  margin: 0 auto 56px auto;
}

.section-title {
  font-size: clamp(1.85rem, 3vw, 2.65rem);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  color: var(--text-primary);
  text-wrap: balance;
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--text-secondary);
  line-height: 1.7;
  text-wrap: pretty;
}

.nowrap {
  white-space: nowrap;
}

/* --- BUTTONS --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-weight: 600;
  font-size: 0.9375rem;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  text-align: center;
  white-space: nowrap;
}

.btn-primary {
  background: var(--crimson-gradient);
  color: #FFFFFF;
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 4px 20px var(--crimson-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(212, 40, 23, 0.5);
  border-color: rgba(255, 255, 255, 0.4);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-primary);
  border: 1px solid var(--border-glass);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.3);
  transform: translateY(-2px);
}

.btn-outline-crimson {
  background: transparent;
  color: #F87171;
  border: 1px solid rgba(184, 33, 20, 0.5);
}

.btn-outline-crimson:hover {
  background: var(--crimson-subtle);
  border-color: #EF4444;
  color: #FFFFFF;
}

/* ==========================================================================
   HEADER & NAVIGATION
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 100;
  transition: background-color var(--transition-fast), border-color var(--transition-fast), height var(--transition-fast);
  border-bottom: 1px solid transparent;
}

.site-header.scrolled {
  background: rgba(8, 10, 14, 0.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom-color: var(--border-subtle);
  height: 72px;
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-img {
  height: 46px;
  width: auto;
  object-fit: contain;
  border-radius: 4px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: 8px 0;
}

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

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--crimson-base);
  transition: width var(--transition-fast);
}

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

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Language Switcher */
.lang-switcher {
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-pill);
  padding: 3px;
}

.lang-btn {
  padding: 4px 10px;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
  border-radius: var(--radius-pill);
  transition: all var(--transition-fast);
}

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

.lang-btn.active {
  background: var(--crimson-base);
  color: #FFFFFF;
  box-shadow: 0 2px 8px var(--crimson-glow);
}

.wechat-header-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  background: rgba(7, 193, 96, 0.12);
  border: 1px solid rgba(7, 193, 96, 0.35);
  color: #22C55E;
  font-size: 0.8125rem;
  font-weight: 600;
  border-radius: var(--radius-pill);
  transition: all var(--transition-fast);
}

.wechat-header-btn:hover {
  background: rgba(7, 193, 96, 0.22);
  border-color: #22C55E;
  transform: translateY(-1px);
}

.mobile-menu-toggle {
  display: none;
  padding: 8px;
  color: var(--text-primary);
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero-section {
  position: relative;
  min-height: 720px;
  padding-top: calc(var(--header-height) + 24px);
  padding-bottom: 60px;
  display: flex;
  align-items: center;
  z-index: 1;
  overflow: hidden;
}

.hero-circuit-bg {
  position: absolute;
  inset: 0;
  background-image: 
    radial-gradient(circle at 50% 25%, rgba(212, 40, 23, 0.16) 0%, transparent 65%),
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 100% 100%, 48px 48px, 48px 48px;
  pointer-events: none;
  z-index: 0;
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
}

.hero-content {
  max-width: 720px;
}

.hero-badge-wrap {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 18px;
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.35);
  border-radius: var(--radius-pill);
  margin-bottom: 22px;
  backdrop-filter: blur(8px);
}

.pulse-indicator {
  position: relative;
  width: 10px;
  height: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.pulse-core {
  width: 6px;
  height: 6px;
  background: #EF4444;
  border-radius: 50%;
}

.pulse-ring {
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  border: 1.5px solid #EF4444;
  animation: pulseRing 2s infinite ease-out;
}

@keyframes pulseRing {
  0% { transform: scale(0.6); opacity: 1; }
  100% { transform: scale(2.2); opacity: 0; }
}

.hero-badge-text {
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #FCA5A5;
}

.hero-title {
  font-size: clamp(2rem, 3.1vw, 2.9rem);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
  text-wrap: balance;
}

.hero-title-lead {
  display: inline;
  color: var(--text-primary);
}

.hero-title-gradient {
  display: inline;
  background: linear-gradient(135deg, #FFFFFF 0%, #EF4444 60%, #DC2626 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-title-tail {
  display: inline;
  color: #E2E8F0;
  white-space: nowrap;
}

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

.hero-subtitle {
  font-size: 1.1875rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 36px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-quick-facts {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-top: 28px;
  flex-wrap: wrap;
}

.quick-fact-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: #CBD5E1;
}

/* Hero HUD Media Display */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-hud-frame {
  position: relative;
  width: 100%;
  max-width: 520px;
  padding: 24px;
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, rgba(20, 26, 38, 0.7) 0%, rgba(9, 12, 18, 0.85) 100%);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 25px 70px rgba(0, 0, 0, 0.7), 0 0 90px rgba(158, 27, 16, 0.22);
  transform-style: preserve-3d;
  transition: transform 0.4s var(--ease-out);
}

.hero-hud-frame:hover {
  transform: translateY(-4px);
  border-color: rgba(239, 68, 68, 0.3);
}

.hud-bracket {
  position: absolute;
  width: 16px;
  height: 16px;
  border-color: #EF4444;
  border-style: solid;
  pointer-events: none;
}

.hud-bracket-tl { top: 12px; left: 12px; border-width: 2px 0 0 2px; }
.hud-bracket-tr { top: 12px; right: 12px; border-width: 2px 2px 0 0; }
.hud-bracket-bl { bottom: 12px; left: 12px; border-width: 0 0 2px 2px; }
.hud-bracket-br { bottom: 12px; right: 12px; border-width: 0 2px 2px 0; }

.hud-telemetry-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
}

.hud-tag {
  color: var(--text-muted);
  letter-spacing: 0.1em;
}

.hud-pulse-status {
  display: flex;
  align-items: center;
  gap: 6px;
  color: #22C55E;
  font-weight: 700;
}

.pulse-dot {
  width: 6px;
  height: 6px;
  background: #22C55E;
  border-radius: 50%;
  box-shadow: 0 0 8px #22C55E;
}

.hero-image-stage {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: radial-gradient(circle, rgba(158, 27, 16, 0.3) 0%, rgba(10, 13, 18, 0.95) 75%);
  padding: 16px;
}

.hero-energy-aura {
  position: absolute;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(239, 68, 68, 0.35) 0%, transparent 70%);
  filter: blur(40px);
  animation: auraBreathe 4s infinite alternate ease-in-out;
  pointer-events: none;
}

@keyframes auraBreathe {
  0% { transform: scale(0.85); opacity: 0.6; }
  100% { transform: scale(1.25); opacity: 1; }
}

.hero-transformer-img {
  position: relative;
  z-index: 2;
  width: 100%;
  height: auto;
  object-fit: contain;
  filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.9));
}

.hero-floating-hud-badge {
  margin-top: 16px;
  padding: 12px 18px;
  background: rgba(10, 14, 20, 0.85);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.floating-hud-icon {
  width: 38px;
  height: 38px;
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: 8px;
  color: #EF4444;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.floating-hud-primary {
  font-size: 0.9375rem;
  font-weight: 700;
  color: #FFF;
}

.floating-hud-sub {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.floating-hud-metric {
  text-align: right;
}

.metric-accent {
  display: block;
  font-size: 0.9375rem;
  font-weight: 800;
  color: #F59E0B;
}

.metric-label {
  font-size: 0.6875rem;
  color: var(--text-muted);
  text-transform: uppercase;
}

/* ==========================================================================
   STATISTICS BAR
   ========================================================================== */
.stats-section {
  position: relative;
  z-index: 2;
  margin-top: -20px;
  padding-bottom: 60px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.stat-card {
  position: relative;
  padding: 28px 20px 22px 20px;
  text-align: center;
  border-radius: var(--radius-md);
  background: linear-gradient(180deg, rgba(20, 26, 38, 0.75) 0%, rgba(10, 13, 18, 0.85) 100%);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-top: 2px solid rgba(239, 68, 68, 0.6);
  backdrop-filter: blur(16px);
  transition: transform var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.stat-card:hover {
  transform: translateY(-5px);
  border-color: rgba(239, 68, 68, 0.4);
  border-top-color: #EF4444;
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.5), 0 0 24px rgba(239, 68, 68, 0.2);
}

.stat-card-icon {
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.stat-number {
  font-size: 2.75rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 6px;
  letter-spacing: -0.02em;
  background: linear-gradient(180deg, #FFFFFF 0%, #CBD5E1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stat-label {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.stat-sub {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

/* ==========================================================================
   TRUST / CLIENTS MARQUEE TICKER
   ========================================================================== */
.trust-section {
  padding: 30px 0 70px 0;
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 100%;
  overflow: hidden;
}

.trust-label {
  text-align: center;
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.marquee-wrapper {
  position: relative;
  width: 100%;
  max-width: 100%;
  overflow: hidden;
  user-select: none;
  display: flex;
  gap: 20px;
  mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
}

.marquee-track {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-shrink: 0;
  animation: marquee 35s linear infinite;
}

.marquee-wrapper:hover .marquee-track {
  animation-play-state: paused;
}

@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-100%); }
}

.trust-item {
  padding: 12px 24px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.9375rem;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.trust-item:hover {
  color: #FFFFFF;
  border-color: rgba(255, 255, 255, 0.3);
  background: rgba(255, 255, 255, 0.07);
}

.trust-bullet {
  color: #EF4444;
  font-size: 0.625rem;
  margin-right: 6px;
}

/* ==========================================================================
   ABOUT & CAPABILITIES
   ========================================================================== */
.about-section {
  padding: 90px 0;
  position: relative;
  z-index: 1;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.about-text .section-title {
  font-size: clamp(1.65rem, 2.5vw, 2.25rem);
  line-height: 1.25;
  text-wrap: balance;
  margin-bottom: 20px;
}

.about-text p {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  margin-bottom: 20px;
  line-height: 1.8;
  text-wrap: pretty;
}

.about-cta-row {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-top: 24px;
  flex-wrap: wrap;
}

.about-tin-note {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.features-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.feature-card {
  position: relative;
  padding: 28px 24px;
  background: linear-gradient(145deg, rgba(20, 26, 38, 0.85) 0%, rgba(10, 13, 18, 0.95) 100%);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  overflow: hidden;
}

.feature-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(239, 68, 68, 0.8), transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
}

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

.feature-card:hover {
  transform: translateY(-6px);
  border-color: rgba(239, 68, 68, 0.35);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.7), 0 0 30px rgba(158, 27, 16, 0.2);
}

.feature-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.feature-icon {
  width: 58px;
  height: 58px;
  background: radial-gradient(circle at center, rgba(239, 68, 68, 0.18) 0%, rgba(15, 23, 42, 0.6) 100%);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 20px rgba(239, 68, 68, 0.2);
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.feature-card:hover .feature-icon {
  transform: scale(1.05);
  border-color: rgba(239, 68, 68, 0.6);
}

.feature-tag {
  padding: 4px 10px;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: #CBD5E1;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-pill);
}

.feature-tag-voltage {
  color: #FCA5A5;
  border-color: rgba(239, 68, 68, 0.3);
  background: rgba(239, 68, 68, 0.1);
}

.feature-tag-service {
  color: #6EE7B7;
  border-color: rgba(16, 185, 129, 0.3);
  background: rgba(16, 185, 129, 0.1);
}

.feature-title {
  font-size: 1.1875rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-primary);
}

.feature-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ==========================================================================
   PORTFOLIO (PROJECTS) SECTION
   ========================================================================== */
.projects-section {
  padding: 100px 0;
  position: relative;
  z-index: 1;
  background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 50%, var(--bg-primary) 100%);
}

.filter-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 9px 20px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-pill);
  transition: all var(--transition-fast);
}

.filter-btn:hover {
  color: var(--text-primary);
  border-color: rgba(255, 255, 255, 0.2);
}

.filter-btn.active {
  background: var(--crimson-base);
  color: #FFFFFF;
  border-color: var(--crimson-base);
  box-shadow: 0 4px 16px var(--crimson-glow);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
  gap: 28px;
}

.project-card {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  transform-style: preserve-3d;
  will-change: transform;
}

.card-media {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: #090B0E;
}

.card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease-out);
}

.project-card:hover .card-media img {
  transform: scale(1.06);
}

.card-badges {
  position: absolute;
  top: 14px;
  left: 14px;
  display: flex;
  gap: 8px;
  z-index: 2;
}

.badge {
  padding: 4px 10px;
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: 6px;
  backdrop-filter: blur(8px);
  white-space: nowrap;
}

.badge-power {
  background: rgba(158, 27, 16, 0.85);
  color: #FFFFFF;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.badge-voltage {
  background: rgba(15, 23, 42, 0.85);
  color: var(--text-primary);
  border: 1px solid var(--border-glass);
}

.card-overlay-action {
  position: absolute;
  inset: 0;
  background: rgba(8, 10, 14, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-fast);
  z-index: 3;
}

.project-card:hover .card-overlay-action {
  opacity: 1;
}

.overlay-icon {
  width: 50px;
  height: 50px;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFFFFF;
  transform: scale(0.8);
  transition: transform var(--transition-fast);
}

.project-card:hover .overlay-icon {
  transform: scale(1);
}

.card-body {
  padding: 24px;
}

.card-header-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}

.card-title {
  font-size: 1.1875rem;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text-primary);
}

.card-year {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.05);
  padding: 2px 8px;
  border-radius: 4px;
}

.card-location {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.card-client {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.card-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 20px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border-subtle);
  padding-top: 16px;
}

.turnkey-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  color: #34D399;
}

.btn-card-details {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: #FFFFFF;
  background: linear-gradient(135deg, #2563EB 0%, #1D4ED8 100%);
  border: 1px solid rgba(147, 197, 253, 0.4);
  padding: 8px 18px;
  border-radius: 8px;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  cursor: pointer;
}

.btn-card-details:hover {
  background: linear-gradient(135deg, #3B82F6 0%, #2563EB 100%);
  border-color: #93C5FD;
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.6);
  transform: translateY(-2px);
  color: #FFFFFF;
}

.btn-card-details svg {
  transition: transform 0.25s ease;
}

.btn-card-details:hover svg {
  transform: translateX(4px);
}

/* ==========================================================================
   PRODUCTION (FACTORY) SECTION
   ========================================================================== */
.production-section {
  padding: 100px 0;
  position: relative;
  z-index: 1;
}

.production-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.production-card {
  padding: 32px 28px;
  background: rgba(18, 23, 33, 0.6);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.production-card:hover {
  transform: translateY(-4px);
  border-color: rgba(158, 27, 16, 0.4);
}

.production-card-num {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 800;
  color: #EF4444;
  margin-bottom: 16px;
}

.production-card-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.production-card-desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ==========================================================================
   STATE LICENSE SECTION
   ========================================================================== */
.license-section {
  padding: 100px 0;
  position: relative;
  z-index: 1;
  background: radial-gradient(circle at top center, rgba(158, 27, 16, 0.12) 0%, transparent 60%);
}

.license-box {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  padding: 48px;
  background: rgba(15, 20, 28, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
}

.license-info-header {
  margin-bottom: 24px;
}

.license-meta-list {
  list-style: none;
  margin-bottom: 28px;
}

.license-meta-item {
  display: flex;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid var(--border-subtle);
  font-size: 0.9375rem;
}

.license-meta-label {
  color: var(--text-muted);
}

.license-meta-val {
  font-weight: 600;
  color: var(--text-primary);
  text-align: right;
}

.license-scope-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: #F87171;
}

.license-scope-list {
  list-style: none;
  margin-bottom: 32px;
}

.license-scope-list li {
  position: relative;
  padding-left: 24px;
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 10px;
}

.license-scope-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: #34D399;
  font-weight: 700;
}

.license-preview-col {
  display: flex;
  gap: 16px;
}

.license-thumb-card {
  flex: 1;
  position: relative;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--border-glass);
  background: #000;
  cursor: pointer;
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.license-thumb-card:hover {
  transform: translateY(-4px);
  border-color: #EF4444;
}

.license-thumb-card img {
  width: 100%;
  height: auto;
  display: block;
}

.license-thumb-badge {
  position: absolute;
  bottom: 10px;
  left: 10px;
  right: 10px;
  background: rgba(8, 10, 14, 0.85);
  backdrop-filter: blur(8px);
  padding: 6px;
  text-align: center;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 4px;
  color: #FFFFFF;
}

/* ==========================================================================
   WECHAT & CONTACTS SECTION
   ========================================================================== */
.contact-section {
  padding: 100px 0;
  position: relative;
  z-index: 1;
}

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

/* WeChat Card */
.wechat-feature-card {
  padding: 40px;
  background: linear-gradient(145deg, rgba(7, 193, 96, 0.08) 0%, rgba(14, 18, 24, 0.8) 100%);
  border: 1px solid rgba(7, 193, 96, 0.3);
  border-radius: var(--radius-lg);
  box-shadow: 0 10px 40px rgba(7, 193, 96, 0.06);
}

.wechat-card-top {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
}

.wechat-logo-icon {
  width: 52px;
  height: 52px;
  background: #07C160;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFFFFF;
}

.wechat-content-row {
  display: flex;
  gap: 28px;
  align-items: center;
  margin-top: 24px;
}

.wechat-qr-frame {
  width: 140px;
  height: 140px;
  padding: 8px;
  background: #FFFFFF;
  border-radius: var(--radius-sm);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  flex-shrink: 0;
}

.wechat-qr-frame img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.wechat-details-text {
  flex: 1;
}

.wechat-field {
  margin-bottom: 12px;
}

.wechat-field-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 2px;
}

.wechat-field-val {
  font-size: 1.125rem;
  font-weight: 700;
  color: #FFFFFF;
  font-family: var(--font-mono);
}

.btn-copy-wechat {
  margin-top: 12px;
  padding: 10px 20px;
  background: #07C160;
  color: #FFFFFF;
  border-radius: var(--radius-pill);
  font-size: 0.875rem;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all var(--transition-fast);
}

.btn-copy-wechat:hover {
  background: #06AD56;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(7, 193, 96, 0.4);
}

.btn-copy-wechat.copied {
  background: #10B981;
}

/* Quote Calculator Form */
.quote-form-card {
  padding: 40px;
  border-radius: var(--radius-lg);
}

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

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 14px 18px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.9375rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: #EF4444;
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.2);
}

.form-select option {
  background: #141923;
  color: #FFFFFF;
}

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

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

/* Contacts Info Grid */
.contacts-info-box {
  margin-top: 48px;
  padding: 36px;
  border-radius: var(--radius-lg);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.contact-info-block h4 {
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #EF4444;
  margin-bottom: 8px;
}

.contact-info-block p, .contact-info-block a {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.contact-info-block a:hover {
  color: #FFFFFF;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer {
  padding: 40px 0;
  border-top: 1px solid var(--border-subtle);
  background: #05070A;
  position: relative;
  z-index: 1;
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-rights {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.footer-tagline {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* ==========================================================================
   MODAL LIGHTBOXES
   ========================================================================== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-med), visibility var(--transition-med);
}

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

.modal-dialog {
  background: #0E1218;
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  max-width: 1140px;
  width: 100%;
  max-height: 92vh;
  overflow-y: auto;
  position: relative;
  box-shadow: 0 25px 80px rgba(0, 0, 0, 0.85);
  will-change: transform, opacity, border-radius;
  transform-origin: center center;
  transition: transform var(--transition-med);
}

.modal-backdrop.active .modal-dialog:not(.animating-flip) {
  transform: scale(1);
}

.modal-close-btn {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFFFFF;
  z-index: 10;
  transition: background var(--transition-fast);
}

.modal-close-btn:hover {
  background: #EF4444;
}

.modal-layout {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  min-height: 520px;
}

.modal-media-col {
  background: #040507;
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 24px;
}

.modal-main-image-wrap {
  width: 100%;
  max-height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border-radius: var(--radius-sm);
}

.modal-main-image {
  max-width: 100%;
  max-height: 400px;
  object-fit: contain;
}

.modal-image-caption {
  margin-top: 12px;
  font-size: 0.8125rem;
  color: var(--text-muted);
  text-align: center;
}

.modal-nav-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(8px);
  color: #FFF;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 5;
  transition: background var(--transition-fast);
}

.modal-nav-arrow:hover {
  background: var(--crimson-base);
}

.modal-nav-prev { left: 16px; }
.modal-nav-next { right: 16px; }

/* 2x LARGER THUMBNAIL STRIP */
.modal-thumbnails {
  display: flex;
  gap: 12px;
  margin-top: 18px;
  overflow-x: auto;
  max-width: 100%;
  padding: 6px 2px;
  scrollbar-width: thin;
  scrollbar-color: rgba(59, 130, 246, 0.4) rgba(255, 255, 255, 0.05);
}

.modal-thumbnails::-webkit-scrollbar {
  height: 6px;
}

.modal-thumbnails::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 3px;
}

.modal-thumbnails::-webkit-scrollbar-thumb {
  background: rgba(59, 130, 246, 0.5);
  border-radius: 3px;
}

.modal-thumb {
  width: 136px;
  height: 96px;
  border-radius: 10px;
  overflow: hidden;
  border: 2px solid rgba(255, 255, 255, 0.12);
  background: #0B0E14;
  opacity: 0.65;
  transition: all 0.25s ease;
  flex-shrink: 0;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

.modal-thumb:hover {
  opacity: 0.95;
  border-color: rgba(96, 165, 250, 0.6);
  transform: translateY(-2px);
}

.modal-thumb.active {
  border-color: #3B82F6;
  opacity: 1;
  box-shadow: 0 0 16px rgba(59, 130, 246, 0.55), 0 4px 14px rgba(0, 0, 0, 0.6);
  transform: scale(1.03);
}

.modal-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.modal-info-col {
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.modal-title {
  font-size: 1.75rem;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 8px;
  color: #FFFFFF;
}

.modal-location {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.modal-spec-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 24px;
  padding: 16px;
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius-sm);
}

.spec-item-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 2px;
}

.spec-item-val {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--text-primary);
}

.modal-desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 24px;
}

/* License Dialog */
.license-modal-dialog {
  max-width: 720px;
  background: #0E1218;
  padding: 32px;
  text-align: center;
}

.license-modal-img {
  max-height: 75vh;
  margin: 16px auto;
  border-radius: var(--radius-sm);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.8);
}

/* WeChat Dialog */
.wechat-modal-dialog {
  max-width: 440px;
  padding: 40px;
  text-align: center;
}

.wechat-modal-qr {
  width: 200px;
  height: 200px;
  margin: 20px auto;
  padding: 12px;
  background: #FFFFFF;
  border-radius: var(--radius-md);
}

/* Toast */
.toast-msg {
  position: fixed;
  bottom: 28px;
  right: 28px;
  background: #10B981;
  color: #FFFFFF;
  padding: 16px 24px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.9375rem;
  box-shadow: 0 10px 30px rgba(16, 185, 129, 0.4);
  transform: translateY(100px);
  opacity: 0;
  transition: all var(--transition-med);
  z-index: 2000;
}

.toast-msg.show {
  transform: translateY(0);
  opacity: 1;
}

/* ==========================================================================
   RESPONSIVE DESIGN
   ========================================================================== */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero-content {
    margin: 0 auto;
  }
  .hero-actions {
    justify-content: center;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .about-grid {
    grid-template-columns: 1fr;
  }
  .production-grid {
    grid-template-columns: 1fr;
  }
  .license-box {
    grid-template-columns: 1fr;
  }
  .contact-grid {
    grid-template-columns: 1fr;
  }
  .modal-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .wechat-header-btn {
    display: none;
  }
  .container {
    padding: 0 18px;
  }
  .nav-links {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    background: rgba(14, 18, 24, 0.96);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 24px;
    gap: 16px;
    border-bottom: 1px solid var(--border-subtle);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: transform var(--transition-med), opacity var(--transition-fast), visibility var(--transition-fast);
  }
  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }
  .mobile-menu-toggle {
    display: block;
  }
  .hero-section {
    padding-top: calc(var(--header-height) + 20px);
  }
  .stats-grid {
    grid-template-columns: 1fr;
  }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
  .contacts-info-box {
    grid-template-columns: 1fr;
  }
  .projects-grid {
    grid-template-columns: 1fr;
  }
  .wechat-content-row {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: clamp(1.75rem, 6.5vw, 2.2rem);
    line-height: 1.25;
  }
  .hero-badge-wrap {
    padding: 5px 12px;
    margin-bottom: 16px;
  }
  .hero-badge-text {
    font-size: 0.72rem;
  }
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }
  .hero-actions .btn {
    width: 100%;
    justify-content: center;
  }
  .hero-quick-facts {
    justify-content: center;
    gap: 12px;
  }
  .quick-fact-item {
    font-size: 0.75rem;
  }
}