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

:root {
  --red: #e01b24;
  --red-dark: #a10d15;
  --red-glow: rgba(224, 27, 36, 0.4);
  --red-subtle: rgba(224, 27, 36, 0.12);
  --black: #000000;
  --black-1: #0a0a0a;
  --black-2: #111111;
  --black-3: #1a1a1a;
  --black-4: #222222;
  --black-5: #2a2a2a;
  --gray: #555555;
  --gray-light: #888888;
  --white: #ffffff;
  --white-80: rgba(255, 255, 255, 0.8);
  --white-50: rgba(255, 255, 255, 0.5);
  --white-10: rgba(255, 255, 255, 0.1);
  --font-heading: 'Orbitron', sans-serif;
  --font-body: 'Inter', sans-serif;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --radius: 12px;
  --radius-lg: 20px;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--black);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--black-1); }
::-webkit-scrollbar-thumb { background: var(--red-dark); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--red); }

/* ===== BACKGROUND PARTICLES ===== */
.bg-particles {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.particle {
  position: absolute;
  border-radius: 50%;
  background: var(--red);
  opacity: 0;
  animation: float-particle linear infinite;
}

@keyframes float-particle {
  0% { transform: translateY(110vh) scale(0); opacity: 0; }
  10% { opacity: 0.6; }
  90% { opacity: 0.2; }
  100% { transform: translateY(-10vh) scale(1.5); opacity: 0; }
}

/* ===== CONTAINER ===== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* ===== SECTION ===== */
.section {
  padding: 100px 0;
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-tag {
  font-family: var(--font-heading);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 12px;
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 900;
  line-height: 1.15;
  color: var(--white);
  margin-bottom: 16px;
}

.section-desc {
  color: var(--gray-light);
  font-size: 17px;
  max-width: 500px;
  margin: 0 auto;
}

/* ===== ACCENT / GRADIENT ===== */
.accent { color: var(--red); }

.gradient-text {
  background: linear-gradient(135deg, var(--red) 0%, #ff4d4d 50%, var(--red-dark) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 8px;
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-decoration: none;
  text-transform: uppercase;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  border: none;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.08);
  opacity: 0;
  transition: var(--transition);
}

.btn:hover::before { opacity: 1; }

.btn-primary {
  background: linear-gradient(135deg, var(--red), var(--red-dark));
  color: var(--white);
  box-shadow: 0 4px 20px var(--red-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--red-glow);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 1.5px solid rgba(255,255,255,0.25);
}

.btn-outline:hover {
  border-color: var(--red);
  color: var(--red);
  transform: translateY(-2px);
}

.btn-lg {
  padding: 16px 36px;
  font-size: 14px;
}

/* ===== NAVBAR ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0 24px;
  transition: var(--transition);
  background: rgba(0,0,0,0.3);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
}

.navbar.scrolled {
  background: rgba(0,0,0,0.85);
  border-bottom-color: rgba(224, 27, 36, 0.2);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  height: 72px;
  gap: 40px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 900;
  color: var(--white);
  letter-spacing: 0.05em;
}

.skull-icon {
  font-size: 24px;
  animation: skull-pulse 3s ease-in-out infinite;
}

@keyframes skull-pulse {
  0%, 100% { transform: scale(1); filter: drop-shadow(0 0 0px var(--red)); }
  50% { transform: scale(1.1); filter: drop-shadow(0 0 8px var(--red)); }
}

.logo-text {
  background: linear-gradient(135deg, #fff, #ccc);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.logo-text .accent {
  background: linear-gradient(135deg, var(--red), #ff6666);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 32px;
  margin-left: auto;
}

.nav-link {
  text-decoration: none;
  color: var(--white-80);
  font-size: 14px;
  font-weight: 500;
  transition: var(--transition);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--red);
  transform: scaleX(0);
  transition: var(--transition);
}

.nav-link:hover { color: var(--white); }
.nav-link:hover::after { transform: scaleX(1); }

.nav-cta { margin-left: 8px; }

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  padding: 100px 24px 60px;
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.hero-glow {
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(224, 27, 36, 0.15) 0%, transparent 70%);
  top: 50%;
  left: 30%;
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--red-subtle);
  border: 1px solid rgba(224, 27, 36, 0.3);
  color: var(--red);
  font-family: var(--font-heading);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 8px 16px;
  border-radius: 100px;
  margin-bottom: 24px;
}

.badge-dot {
  width: 8px;
  height: 8px;
  background: var(--red);
  border-radius: 50%;
  animation: dot-pulse 1.5s ease-in-out infinite;
}

@keyframes dot-pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 var(--red-glow); }
  50% { opacity: 0.7; box-shadow: 0 0 0 6px transparent; }
}

.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(36px, 5vw, 62px);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 24px;
}

.hero-desc {
  color: var(--gray-light);
  font-size: 17px;
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 480px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 24px;
}

.hstat {
  display: flex;
  flex-direction: column;
}

.hstat-num {
  font-family: var(--font-heading);
  font-size: 28px;
  font-weight: 900;
  color: var(--red);
}

.hstat-suffix {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 700;
  color: var(--red);
}

.hstat-label {
  font-size: 11px;
  color: var(--gray-light);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.hstat-divider {
  width: 1px;
  height: 40px;
  background: var(--black-5);
}

/* ===== TERMINAL ===== */
.terminal-window {
  background: var(--black-2);
  border: 1px solid var(--black-5);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5), 0 0 0 1px rgba(255,255,255,0.04), 0 0 40px rgba(224, 27, 36, 0.1);
  animation: terminal-float 4s ease-in-out infinite;
}

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

.terminal-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 18px;
  background: var(--black-3);
  border-bottom: 1px solid var(--black-5);
}

.t-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.t-dot.red { background: #e01b24; }
.t-dot.yellow { background: #e8b904; }
.t-dot.green { background: #26a641; }

.t-title {
  font-family: var(--font-heading);
  font-size: 11px;
  color: var(--gray);
  margin-left: 8px;
  letter-spacing: 0.1em;
}

.terminal-body {
  padding: 20px;
  font-family: 'Courier New', monospace;
  font-size: 12.5px;
  line-height: 1.9;
  min-height: 280px;
}

.t-time { color: var(--gray); margin-right: 8px; }
.t-info { color: #7aa2f7; }
.t-ok { color: #26a641; }
.t-warn { color: #e8b904; }
.t-ban { color: var(--red); font-weight: bold; }

.t-blink { animation: blink-row 0.5s ease 0s 3; }
@keyframes blink-row { 0%, 100% { background: transparent; } 50% { background: rgba(224, 27, 36, 0.1); } }

.t-cursor { animation: cursor-blink 1s ease-in-out infinite; }
@keyframes cursor-blink { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }

/* ===== FEATURES GRID ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--black-2);
  border: 1px solid var(--black-5);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--red), transparent);
  opacity: 0;
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: rgba(224, 27, 36, 0.3);
  box-shadow: 0 20px 40px rgba(0,0,0,0.4), 0 0 30px rgba(224, 27, 36, 0.1);
}

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

.feature-card.featured {
  background: linear-gradient(135deg, #150306, #1a0508);
  border-color: rgba(224, 27, 36, 0.4);
  box-shadow: 0 0 40px rgba(224, 27, 36, 0.15);
}

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

.feature-glow {
  position: absolute;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(224, 27, 36, 0.2) 0%, transparent 70%);
  top: -50px;
  right: -50px;
  pointer-events: none;
}

.feature-icon {
  font-size: 36px;
  margin-bottom: 16px;
  display: block;
}

.feature-card h3 {
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 10px;
  letter-spacing: 0.03em;
}

.feature-card p {
  font-size: 14px;
  color: var(--gray-light);
  line-height: 1.7;
  margin-bottom: 16px;
}

.feature-tag {
  display: inline-block;
  padding: 4px 12px;
  background: var(--red-subtle);
  border: 1px solid rgba(224, 27, 36, 0.3);
  border-radius: 100px;
  font-family: var(--font-heading);
  font-size: 10px;
  font-weight: 700;
  color: var(--red);
  letter-spacing: 0.1em;
}

/* ===== STATS SECTION ===== */
.stats-section {
  position: relative;
  overflow: hidden;
}

.stats-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent, rgba(224, 27, 36, 0.05) 50%, transparent);
  pointer-events: none;
}

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

.stat-card {
  background: var(--black-2);
  border: 1px solid var(--black-5);
  border-radius: var(--radius-lg);
  padding: 36px 24px;
  text-align: center;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.stat-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--red), transparent);
}

.stat-card:hover {
  transform: translateY(-4px);
  border-color: rgba(224, 27, 36, 0.3);
  box-shadow: 0 10px 30px rgba(224, 27, 36, 0.1);
}

.stat-icon {
  font-size: 32px;
  margin-bottom: 12px;
  display: block;
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 42px;
  font-weight: 900;
  color: var(--red);
  line-height: 1;
  display: inline;
}

.stat-unit {
  font-family: var(--font-heading);
  font-size: 28px;
  font-weight: 700;
  color: var(--red);
  display: inline;
}

.stat-label {
  font-size: 13px;
  color: var(--gray-light);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-top: 8px;
}

/* ===== DETECTION SECTION ===== */
.detection-flow {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-bottom: 60px;
}

.flow-step {
  flex: 1;
  background: var(--black-2);
  border: 1px solid var(--black-5);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: var(--transition);
}

.flow-step:hover {
  border-color: rgba(224, 27, 36, 0.3);
  transform: translateY(-4px);
}

.flow-num {
  font-family: var(--font-heading);
  font-size: 48px;
  font-weight: 900;
  color: rgba(224, 27, 36, 0.15);
  line-height: 1;
  margin-bottom: 12px;
}

.flow-content h3 {
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 10px;
}

.flow-content p {
  font-size: 14px;
  color: var(--gray-light);
  line-height: 1.7;
}

.flow-arrow {
  font-size: 28px;
  color: var(--red);
  flex-shrink: 0;
  animation: arrow-pulse 2s ease-in-out infinite;
}

@keyframes arrow-pulse {
  0%, 100% { transform: translateX(0); opacity: 0.6; }
  50% { transform: translateX(4px); opacity: 1; }
}

/* ===== CODE PREVIEW ===== */
.code-preview {
  background: var(--black-2);
  border: 1px solid var(--black-5);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.code-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 20px;
  background: var(--black-3);
  border-bottom: 1px solid var(--black-5);
}

.code-lang {
  font-family: var(--font-heading);
  font-size: 10px;
  font-weight: 700;
  color: var(--red);
  background: var(--red-subtle);
  border: 1px solid rgba(224,27,36,0.3);
  padding: 3px 10px;
  border-radius: 4px;
  letter-spacing: 0.1em;
}

.code-file {
  font-family: 'Courier New', monospace;
  font-size: 12px;
  color: var(--gray);
}

.code-block {
  padding: 24px;
  font-family: 'Courier New', monospace;
  font-size: 13px;
  line-height: 1.8;
  overflow-x: auto;
  white-space: pre;
}

.c-comment { color: #555; font-style: italic; }
.c-keyword { color: #c792ea; }
.c-string { color: #c3e88d; }
.c-func { color: #82aaff; }

/* ===== CONTACT ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr 1fr;
  gap: 24px;
  align-items: center;
}

.contact-card {
  background: var(--black-2);
  border: 1px solid var(--black-5);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  text-align: center;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.contact-card:hover {
  transform: translateY(-4px);
  border-color: rgba(224, 27, 36, 0.3);
}

.contact-card.featured {
  background: linear-gradient(135deg, #150306, #1a0508);
  border-color: rgba(224, 27, 36, 0.4);
  box-shadow: 0 0 60px rgba(224, 27, 36, 0.2);
  padding: 48px 36px;
}

.contact-glow {
  position: absolute;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(224, 27, 36, 0.15) 0%, transparent 70%);
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.contact-icon {
  font-size: 40px;
  margin-bottom: 16px;
  display: block;
}

.contact-card h3 {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 10px;
}

.contact-card p {
  font-size: 14px;
  color: var(--gray-light);
  margin-bottom: 20px;
  line-height: 1.6;
}

.version-note {
  margin-top: 12px;
  margin-bottom: 0 !important;
  font-size: 11px !important;
  color: var(--gray) !important;
}

/* ===== PRICING ===== */
.pricing-wrapper {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 32px;
  align-items: start;
}

.pricing-card {
  background: linear-gradient(135deg, #120205, #1c0308, #120205);
  border: 1px solid rgba(224, 27, 36, 0.5);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: 0 0 80px rgba(224, 27, 36, 0.2), inset 0 0 60px rgba(224, 27, 36, 0.04);
}

.pricing-glow {
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(224, 27, 36, 0.12) 0%, transparent 65%);
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
  animation: pricing-glow-pulse 3s ease-in-out infinite;
}

@keyframes pricing-glow-pulse {
  0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.8; }
  50% { transform: translate(-50%, -50%) scale(1.1); opacity: 1; }
}

.pricing-badge {
  display: inline-block;
  background: linear-gradient(135deg, var(--red), var(--red-dark));
  color: var(--white);
  font-family: var(--font-heading);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.2em;
  padding: 6px 18px;
  border-radius: 100px;
  margin-bottom: 20px;
  box-shadow: 0 4px 20px var(--red-glow);
  animation: badge-float 2s ease-in-out infinite;
}

@keyframes badge-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-3px); }
}

.pricing-icon {
  font-size: 56px;
  margin-bottom: 12px;
  display: block;
  animation: skull-pulse 3s ease-in-out infinite;
}

.pricing-name {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 900;
  color: var(--white);
  margin-bottom: 24px;
  letter-spacing: 0.05em;
}

.pricing-price {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 4px;
  margin-bottom: 8px;
  line-height: 1;
}

.price-amount {
  font-family: var(--font-heading);
  font-size: 96px;
  font-weight: 900;
  background: linear-gradient(135deg, #ff4d4d, var(--red), var(--red-dark));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  text-shadow: none;
}

.price-currency {
  font-family: var(--font-heading);
  font-size: 36px;
  font-weight: 700;
  color: var(--red);
  padding-top: 16px;
}

.pricing-forever {
  color: #4ade80;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 28px;
  letter-spacing: 0.03em;
}

.pricing-features {
  list-style: none;
  text-align: left;
  margin-bottom: 32px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 24px;
}

.pricing-features li {
  font-size: 14px;
  color: var(--white-80);
  display: flex;
  align-items: center;
  gap: 8px;
}

.pricing-features li::first-letter {
  color: var(--red);
  font-weight: 700;
}

.btn-full {
  width: 100%;
  justify-content: center;
  font-size: 16px;
  padding: 18px 32px;
  box-shadow: 0 6px 30px var(--red-glow);
}

.pricing-note {
  margin-top: 14px;
  font-size: 12px;
  color: var(--gray);
}

.ticket-notice {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-top: 18px;
  background: rgba(224, 27, 36, 0.1);
  border: 1px solid rgba(224, 27, 36, 0.4);
  border-radius: 10px;
  padding: 16px 18px;
  text-align: left;
}

.ticket-icon {
  font-size: 22px;
  flex-shrink: 0;
  line-height: 1.3;
}

.ticket-notice p {
  font-size: 14px;
  color: var(--white-80);
  line-height: 1.55;
  margin: 0;
}

.ticket-notice strong {
  color: var(--red);
  font-weight: 700;
}

.pricing-side {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

@media (max-width: 900px) {
  .pricing-wrapper {
    grid-template-columns: 1fr;
    max-width: 560px;
    margin: 0 auto;
  }
  .pricing-features {
    grid-template-columns: 1fr;
  }
}

/* ===== FOOTER ===== */
.footer {
  background: var(--black-1);
  border-top: 1px solid var(--black-5);
  padding: 40px 24px;
  position: relative;
  z-index: 1;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
}

.footer-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 900;
  color: var(--white);
  margin-bottom: 16px;
}

.footer-text {
  color: var(--gray);
  font-size: 13px;
  margin-bottom: 4px;
}

.footer-sub {
  color: var(--black-5);
  font-size: 12px;
}

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

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

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; max-width: 500px; margin: 0 auto; }
}

@media (max-width: 768px) {
  .hero {
    grid-template-columns: 1fr;
    padding-top: 120px;
    text-align: center;
  }
  .hero-desc { max-width: 100%; }
  .hero-actions { justify-content: center; }
  .hero-stats { justify-content: center; }
  .hero-visual { order: -1; }
  .nav-links { display: none; }
  .features-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .detection-flow { flex-direction: column; }
  .flow-arrow { transform: rotate(90deg); }
  @keyframes arrow-pulse {
    0%, 100% { transform: rotate(90deg) translateX(0); opacity: 0.6; }
    50% { transform: rotate(90deg) translateX(4px); opacity: 1; }
  }
}