/* ─────────────────────────────────────────────────────────────────────────
   BlueHug AIChain Trader — Main Stylesheet
   Inspired by ether.fi and modern Web3 design language
───────────────────────────────────────────────────────────────────────── */

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

:root {
  --bg:          #050810;
  --bg-2:        #080d1a;
  --bg-card:     rgba(255,255,255,0.035);
  --bg-card-h:   rgba(255,255,255,0.06);
  --border:      rgba(255,255,255,0.08);
  --border-h:    rgba(255,255,255,0.18);

  --blue:        #4F9EFF;
  --purple:      #7B5CF6;
  --cyan:        #06F7C4;
  --pink:        #E94DFF;
  --yellow:      #F7A506;
  --green:       #22c55e;

  --grad-primary:  linear-gradient(135deg, #4F9EFF, #7B5CF6);
  --grad-cyan:     linear-gradient(135deg, #06F7C4, #4F9EFF);
  --grad-warm:     linear-gradient(135deg, #F7A506, #E94DFF);
  --grad-text:     linear-gradient(135deg, #4F9EFF 0%, #7B5CF6 50%, #06F7C4 100%);

  --text:        #f0f2f8;
  --text-muted:  rgba(240,242,248,0.55);
  --text-faint:  rgba(240,242,248,0.3);

  --radius-sm:   8px;
  --radius-md:   14px;
  --radius-lg:   22px;
  --radius-xl:   32px;

  --shadow-blue: 0 0 40px rgba(79,158,255,0.2);
  --shadow-purple: 0 0 40px rgba(123,92,246,0.2);
  --shadow-glow:   0 0 80px rgba(79,158,255,0.12);

  --nav-h:       68px;
  --section-pad: 100px;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Gradient Text ────────────────────────────────────────────────────── */
.gradient-text {
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.italic-accent {
  font-family: 'Crimson Pro', Georgia, serif;
  font-style: italic;
  font-weight: 400;
}

/* ── Buttons ──────────────────────────────────────────────────────────── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  background: var(--grad-primary);
  color: #fff;
  border-radius: 100px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.01em;
  transition: opacity 0.2s, transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 4px 24px rgba(79,158,255,0.25);
  white-space: nowrap;
}
.btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-1px);
  box-shadow: 0 8px 32px rgba(79,158,255,0.35);
}
.btn-primary.btn-large { padding: 15px 32px; font-size: 15px; }

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border-h);
  border-radius: 100px;
  font-size: 14px;
  font-weight: 500;
  transition: border-color 0.2s, background 0.2s, transform 0.2s;
}
.btn-outline:hover {
  border-color: var(--blue);
  background: rgba(79,158,255,0.08);
  transform: translateY(-1px);
}
.btn-outline.btn-large { padding: 15px 32px; font-size: 15px; }

.btn-ghost {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 500;
  border-radius: 100px;
  transition: color 0.2s, background 0.2s;
}
.btn-ghost:hover { color: var(--text); background: rgba(255,255,255,0.06); }

/* ── Section Tags ─────────────────────────────────────────────────────── */
.section-tag {
  display: inline-block;
  padding: 5px 14px;
  background: rgba(79,158,255,0.1);
  border: 1px solid rgba(79,158,255,0.2);
  border-radius: 100px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 20px;
}
.section-tag.center { display: block; text-align: center; }

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 64px;
}
.section-header h2 {
  font-size: clamp(32px, 4vw, 48px);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}
.section-header p {
  font-size: 17px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ─────────────────────────────────────────────────────────────────────────
   NAVBAR
───────────────────────────────────────────────────────────────────────── */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  border-bottom: 1px solid transparent;
  transition: background 0.3s, border-color 0.3s, backdrop-filter 0.3s;
}
.navbar.scrolled {
  background: rgba(5,8,16,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom-color: var(--border);
}

.nav-inner {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
  flex-shrink: 0;
}
.logo-icon { display: flex; align-items: center; justify-content: center; }

.nav-links {
  display: flex;
  list-style: none;
  gap: 6px;
  margin-left: auto;
}
.nav-links a {
  padding: 6px 14px;
  font-size: 14px;
  color: var(--text-muted);
  border-radius: 8px;
  transition: color 0.2s, background 0.2s;
}
.nav-links a:hover { color: var(--text); background: rgba(255,255,255,0.06); }

.nav-cta {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.arrow { transition: transform 0.2s; }
.btn-primary:hover .arrow { transform: translateX(3px); }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  margin-left: auto;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

.mobile-menu {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 16px 24px 20px;
  background: rgba(5,8,16,0.95);
  backdrop-filter: blur(20px);
  border-top: 1px solid var(--border);
}
.mobile-menu a {
  padding: 12px 16px;
  font-size: 15px;
  color: var(--text-muted);
  border-radius: 10px;
  transition: color 0.2s, background 0.2s;
}
.mobile-menu a:hover { color: var(--text); background: rgba(255,255,255,0.06); }
.mobile-menu .mobile-cta { margin-top: 8px; text-align: center; justify-content: center; }
.mobile-menu.open { display: flex; }

/* ─────────────────────────────────────────────────────────────────────────
   HERO
───────────────────────────────────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: calc(var(--nav-h) + 40px) 24px 80px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

#particleCanvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(79,158,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(79,158,255,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, black, transparent);
}

.glow-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.6;
  animation: glow-pulse 6s ease-in-out infinite;
}
.glow-1 {
  width: 500px; height: 500px;
  top: -100px; left: -100px;
  background: radial-gradient(circle, rgba(79,158,255,0.25), transparent 70%);
  animation-delay: 0s;
}
.glow-2 {
  width: 600px; height: 600px;
  top: -50px; right: -150px;
  background: radial-gradient(circle, rgba(123,92,246,0.2), transparent 70%);
  animation-delay: 2s;
}
.glow-3 {
  width: 400px; height: 400px;
  bottom: -100px; left: 50%;
  transform: translateX(-50%);
  background: radial-gradient(circle, rgba(6,247,196,0.12), transparent 70%);
  animation-delay: 4s;
}

@keyframes glow-pulse {
  0%, 100% { opacity: 0.5; transform: scale(1); }
  50% { opacity: 0.8; transform: scale(1.1); }
}

.hero-inner {
  position: relative;
  max-width: 1160px;
  width: 100%;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

/* Hero Left */
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px 6px 8px;
  background: rgba(6,247,196,0.08);
  border: 1px solid rgba(6,247,196,0.2);
  border-radius: 100px;
  font-size: 12px;
  font-weight: 600;
  color: var(--cyan);
  margin-bottom: 28px;
  letter-spacing: 0.02em;
}
.badge-dot {
  width: 8px; height: 8px;
  background: var(--cyan);
  border-radius: 50%;
  animation: badge-blink 2s ease-in-out infinite;
  box-shadow: 0 0 6px var(--cyan);
}
@keyframes badge-blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.hero-title {
  font-size: clamp(40px, 5.5vw, 70px);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.hero-sub {
  font-size: 17px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 40px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 52px;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}
.stat-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.stat-num {
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -0.03em;
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.1;
}
.stat-label {
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}
.stat-divider {
  width: 1px;
  height: 36px;
  background: var(--border);
  flex-shrink: 0;
}

/* ── Chat Demo ────────────────────────────────────────────────────────── */
.hero-right {
  position: relative;
  display: flex;
  justify-content: center;
}

.chat-demo {
  width: 100%;
  max-width: 440px;
  background: rgba(10,15,30,0.85);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(24px);
  overflow: hidden;
  box-shadow: 0 32px 80px rgba(0,0,0,0.5), var(--shadow-blue);
}

.chat-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  background: rgba(255,255,255,0.03);
  border-bottom: 1px solid var(--border);
}
.chat-header-dots {
  display: flex;
  gap: 6px;
}
.chat-header-dots span {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: rgba(255,255,255,0.12);
}
.chat-header-dots span:nth-child(1) { background: rgba(255,80,80,0.7); }
.chat-header-dots span:nth-child(2) { background: rgba(255,200,0,0.7); }
.chat-header-dots span:nth-child(3) { background: rgba(0,200,80,0.7); }

.chat-header-title {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  flex: 1;
}
.status-dot {
  width: 7px; height: 7px;
  background: var(--cyan);
  border-radius: 50%;
  animation: badge-blink 2s ease-in-out infinite;
  box-shadow: 0 0 5px var(--cyan);
}

.chat-header-network {
  display: flex;
  gap: 5px;
}
.chain-badge {
  padding: 2px 7px;
  background: rgba(79,158,255,0.1);
  border: 1px solid rgba(79,158,255,0.2);
  border-radius: 4px;
  font-size: 10px;
  font-weight: 700;
  color: var(--blue);
  letter-spacing: 0.04em;
}

.chat-body {
  min-height: 260px;
  max-height: 320px;
  overflow-y: auto;
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  scroll-behavior: smooth;
}
.chat-body::-webkit-scrollbar { width: 4px; }
.chat-body::-webkit-scrollbar-track { background: transparent; }
.chat-body::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 2px; }

.msg {
  display: flex;
  gap: 10px;
  animation: msg-in 0.3s ease-out;
}
@keyframes msg-in {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}
.msg.user { flex-direction: row-reverse; }

.msg-avatar {
  width: 28px; height: 28px;
  border-radius: 50%;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
}
.msg.user .msg-avatar { background: var(--grad-primary); }
.msg.agent .msg-avatar { background: rgba(6,247,196,0.15); border: 1px solid rgba(6,247,196,0.25); font-size: 11px; }

.msg-bubble {
  max-width: 80%;
  padding: 10px 14px;
  border-radius: 14px;
  font-size: 13px;
  line-height: 1.5;
}
.msg.user .msg-bubble {
  background: var(--grad-primary);
  color: #fff;
  border-bottom-right-radius: 4px;
}
.msg.agent .msg-bubble {
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  color: var(--text);
  border-bottom-left-radius: 4px;
}

.typing-indicator {
  display: flex;
  gap: 4px;
  padding: 12px 14px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: 14px;
  border-bottom-left-radius: 4px;
  width: fit-content;
}
.typing-dot {
  width: 6px; height: 6px;
  background: var(--text-muted);
  border-radius: 50%;
  animation: typing 1.2s ease-in-out infinite;
}
.typing-dot:nth-child(2) { animation-delay: 0.2s; }
.typing-dot:nth-child(3) { animation-delay: 0.4s; }
@keyframes typing {
  0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
  30% { transform: translateY(-4px); opacity: 1; }
}

.chat-input-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border-top: 1px solid var(--border);
  background: rgba(255,255,255,0.02);
}
.chat-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  font-size: 13px;
  color: var(--text);
  caret-color: var(--blue);
  font-family: inherit;
}
.chat-input::placeholder { color: var(--text-faint); }
.chat-send {
  width: 32px; height: 32px;
  background: var(--grad-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  flex-shrink: 0;
  transition: transform 0.2s, box-shadow 0.2s;
}
.chat-send:hover { transform: scale(1.05); box-shadow: 0 4px 16px rgba(79,158,255,0.35); }

/* Floating Cards */
.floating-cards {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.float-card {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: rgba(10,15,30,0.9);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  backdrop-filter: blur(20px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.3);
  pointer-events: auto;
  animation: float-card-in 0.5s ease-out backwards;
}
.card-a {
  top: 10%; right: -30%;
  animation: float-card-in 0.5s 0.8s ease-out backwards, card-float-a 5s 0.8s ease-in-out infinite;
}
.card-b {
  bottom: 25%; left: -20%;
  animation: float-card-in 0.5s 1.0s ease-out backwards, card-float-b 6s 1.0s ease-in-out infinite;
}
.card-c {
  bottom: 10%; right: -25%;
  animation: float-card-in 0.5s 1.2s ease-out backwards, card-float-c 7s 1.2s ease-in-out infinite;
}

@keyframes float-card-in {
  from { opacity: 0; transform: translateY(10px) scale(0.96); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
@keyframes card-float-a {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}
@keyframes card-float-b {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(6px); }
}
@keyframes card-float-c {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-5px); }
}

.fc-icon {
  width: 32px; height: 32px;
  background: rgba(79,158,255,0.1);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  flex-shrink: 0;
}
.fc-label { font-size: 11px; color: var(--text-muted); font-weight: 500; }
.fc-val { font-size: 14px; font-weight: 700; color: var(--text); }
.fc-val.green { color: var(--green); }

/* Scroll Hint */
.scroll-hint {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-faint);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.scroll-mouse {
  width: 22px; height: 34px;
  border: 2px solid rgba(255,255,255,0.2);
  border-radius: 12px;
  display: flex;
  justify-content: center;
  padding-top: 5px;
}
.scroll-wheel {
  width: 3px; height: 8px;
  background: var(--blue);
  border-radius: 2px;
  animation: scroll-wheel 2s ease-in-out infinite;
}
@keyframes scroll-wheel {
  0% { transform: translateY(0); opacity: 1; }
  100% { transform: translateY(12px); opacity: 0; }
}

/* ─────────────────────────────────────────────────────────────────────────
   MARQUEE
───────────────────────────────────────────────────────────────────────── */
.marquee-wrap {
  overflow: hidden;
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 20px 0;
  position: relative;
}
.marquee-wrap::before,
.marquee-wrap::after {
  content: '';
  position: absolute;
  top: 0; bottom: 0;
  width: 120px;
  z-index: 2;
}
.marquee-wrap::before { left: 0; background: linear-gradient(to right, var(--bg-2), transparent); }
.marquee-wrap::after { right: 0; background: linear-gradient(to left, var(--bg-2), transparent); }

.marquee-track {
  display: flex;
  gap: 48px;
  animation: marquee 30s linear infinite;
  width: max-content;
}
@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}
.marquee-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-muted);
  white-space: nowrap;
  flex-shrink: 0;
}
.marquee-item img {
  width: 22px; height: 22px;
  opacity: 0.5;
  filter: grayscale(1);
}

/* ─────────────────────────────────────────────────────────────────────────
   FEATURES
───────────────────────────────────────────────────────────────────────── */
.features {
  padding: var(--section-pad) 0;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: auto auto;
  gap: 16px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: background 0.3s, border-color 0.3s, transform 0.3s;
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at top left, rgba(79,158,255,0.05), transparent 60%);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s;
}
.feature-card:hover {
  background: var(--bg-card-h);
  border-color: var(--border-h);
  transform: translateY(-3px);
}
.feature-card:hover::before { opacity: 1; }

.feature-large {
  grid-column: span 2;
}

.feature-icon-wrap {
  margin-bottom: 18px;
}
.feature-icon {
  width: 48px; height: 48px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
}

.feature-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}
.feature-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 16px;
}

.feature-demo-chat {
  background: rgba(0,0,0,0.25);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
  font-size: 13px;
}
.fdc-msg { padding: 8px 12px; border-radius: 10px; line-height: 1.5; }
.fdc-msg.user {
  background: rgba(79,158,255,0.12);
  color: var(--blue);
  font-weight: 500;
  align-self: flex-end;
}
.fdc-msg.agent {
  background: rgba(6,247,196,0.07);
  color: var(--text-muted);
  border: 1px solid rgba(6,247,196,0.15);
}

.feature-tag {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-faint);
}

/* ─────────────────────────────────────────────────────────────────────────
   HOW IT WORKS
───────────────────────────────────────────────────────────────────────── */
.how-it-works {
  padding: var(--section-pad) 0;
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.steps-wrapper {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.steps-line {
  position: absolute;
  left: 35px;
  top: 56px;
  bottom: 56px;
  width: 1px;
  background: linear-gradient(to bottom, var(--blue), var(--purple), var(--cyan));
  opacity: 0.3;
}

.step {
  display: flex;
  gap: 32px;
  align-items: flex-start;
  padding: 40px 0;
  position: relative;
}
.step:not(:last-child)::after {
  content: '';
  position: absolute;
  left: 35px;
  bottom: 0;
  right: 0;
  height: 1px;
  background: var(--border);
}

.step-icon-wrap {
  flex-shrink: 0;
  position: relative;
}
.step-icon {
  width: 72px; height: 72px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 1;
  transition: background 0.3s, border-color 0.3s;
}
.step:hover .step-icon {
  background: rgba(79,158,255,0.08);
  border-color: rgba(79,158,255,0.3);
}

.step[data-step]::before {
  content: attr(data-step);
  position: absolute;
  top: 40px;
  left: -8px;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--blue);
  background: var(--bg-2);
  padding: 2px 4px;
  border-radius: 4px;
  z-index: 2;
}

.step-content {
  flex: 1;
  padding-top: 16px;
}
.step-content h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: -0.015em;
}
.step-content p {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 16px;
  max-width: 560px;
}

.step-example {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(79,158,255,0.06);
  border: 1px solid rgba(79,158,255,0.15);
  border-radius: 100px;
  font-size: 13px;
  color: var(--blue);
  font-weight: 500;
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
}
.step-example::before { content: '→'; opacity: 0.6; }

/* ─────────────────────────────────────────────────────────────────────────
   LIVE DEMO
───────────────────────────────────────────────────────────────────────── */
.live-demo {
  padding: var(--section-pad) 0;
}

.demo-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.demo-left .section-tag { margin-bottom: 20px; }
.demo-left h2 {
  font-size: clamp(28px, 3.5vw, 44px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}
.demo-left p {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 28px;
}

.prompt-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.prompt-chip {
  padding: 8px 16px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
  transition: all 0.2s;
  font-family: inherit;
}
.prompt-chip:hover {
  background: rgba(79,158,255,0.1);
  border-color: rgba(79,158,255,0.3);
  color: var(--blue);
}

.chat-demo-full { max-width: 100%; }
.chat-demo-full .chat-body { max-height: 360px; }

/* ─────────────────────────────────────────────────────────────────────────
   ECOSYSTEM
───────────────────────────────────────────────────────────────────────── */
.ecosystem {
  padding: var(--section-pad) 0;
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

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

.eco-category {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: border-color 0.3s;
}
.eco-category:hover { border-color: var(--border-h); }

.eco-cat-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 16px;
}

.eco-items { display: flex; flex-direction: column; gap: 10px; }
.eco-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
  transition: color 0.2s;
}
.eco-item:hover { color: var(--text); }

.eco-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}
.eco-dot.blue { background: var(--blue); box-shadow: 0 0 6px var(--blue); }
.eco-dot.purple { background: var(--purple); box-shadow: 0 0 6px var(--purple); }
.eco-dot.cyan { background: var(--cyan); box-shadow: 0 0 6px var(--cyan); }
.eco-dot.pink { background: var(--pink); box-shadow: 0 0 6px var(--pink); }
.eco-dot.yellow { background: var(--yellow); box-shadow: 0 0 6px var(--yellow); }
.eco-dot.green { background: var(--green); box-shadow: 0 0 6px var(--green); }

/* ─────────────────────────────────────────────────────────────────────────
   SECURITY
───────────────────────────────────────────────────────────────────────── */
.security {
  padding: var(--section-pad) 0;
}

.security-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.security-left .section-tag { margin-bottom: 20px; }
.security-left h2 {
  font-size: clamp(28px, 3.5vw, 44px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}
.security-left > p {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 36px;
}

.security-items { display: flex; flex-direction: column; gap: 20px; }
.sec-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}
.sec-icon {
  width: 38px; height: 38px;
  flex-shrink: 0;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.sec-title { font-size: 15px; font-weight: 600; margin-bottom: 3px; }
.sec-desc { font-size: 13px; color: var(--text-muted); line-height: 1.5; }

/* Audit Card */
.audit-card {
  background: rgba(10,15,30,0.8);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  backdrop-filter: blur(20px);
  box-shadow: 0 24px 60px rgba(0,0,0,0.4), var(--shadow-blue);
}
.audit-header {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 24px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border);
}
.audit-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}
.audit-row span:first-child { color: var(--text-muted); }
.audit-pass {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--cyan);
  background: rgba(6,247,196,0.1);
  border: 1px solid rgba(6,247,196,0.2);
  padding: 3px 10px;
  border-radius: 100px;
}
.audit-row:last-of-type .audit-pass {
  color: var(--yellow);
  background: rgba(247,165,6,0.1);
  border-color: rgba(247,165,6,0.2);
}
.audit-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 20px;
}
.audit-score-num {
  font-size: 40px;
  font-weight: 900;
  letter-spacing: -0.04em;
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.audit-score-label {
  font-size: 12px;
  color: var(--text-faint);
  font-weight: 500;
}
.audit-badges { display: flex; flex-direction: column; gap: 8px; align-items: flex-end; }
.audit-badge {
  padding: 5px 12px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
}

/* ─────────────────────────────────────────────────────────────────────────
   CTA SECTION
───────────────────────────────────────────────────────────────────────── */
.cta-section {
  padding: var(--section-pad) 0;
  border-top: 1px solid var(--border);
}
.cta-inner {
  text-align: center;
  position: relative;
  padding: 72px 40px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
}
.cta-glow {
  position: absolute;
  width: 600px; height: 400px;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  background: radial-gradient(ellipse, rgba(79,158,255,0.08), transparent 70%);
  pointer-events: none;
}
.cta-inner h2 {
  font-size: clamp(30px, 4vw, 52px);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.025em;
  margin-bottom: 16px;
}
.cta-inner p {
  font-size: 17px;
  color: var(--text-muted);
  margin-bottom: 36px;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.65;
}
.cta-actions {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

/* ─────────────────────────────────────────────────────────────────────────
   FOOTER
───────────────────────────────────────────────────────────────────────── */
.footer {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  padding: 64px 0 32px;
}

.footer-top {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 64px;
  margin-bottom: 48px;
}

.footer-brand .nav-logo { margin-bottom: 16px; }
.footer-brand p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 24px;
}

.footer-socials { display: flex; gap: 8px; }
.social-link {
  width: 36px; height: 36px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: color 0.2s, background 0.2s, border-color 0.2s;
}
.social-link:hover {
  color: var(--text);
  background: rgba(79,158,255,0.1);
  border-color: rgba(79,158,255,0.25);
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
.footer-col { display: flex; flex-direction: column; gap: 10px; }
.footer-col-title {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 6px;
}
.footer-col a {
  font-size: 14px;
  color: var(--text-muted);
  transition: color 0.2s;
}
.footer-col a:hover { color: var(--text); }

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: var(--text-faint);
  flex-wrap: wrap;
  gap: 8px;
}

/* ─────────────────────────────────────────────────────────────────────────
   SCROLL REVEAL
───────────────────────────────────────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ─────────────────────────────────────────────────────────────────────────
   RESPONSIVE
───────────────────────────────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .hero-inner { gap: 40px; }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-large { grid-column: span 2; }
  .eco-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 860px) {
  :root { --section-pad: 72px; }
  .nav-links, .nav-cta { display: none; }
  .hamburger { display: flex; }
  .hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero-left { order: 1; }
  .hero-right { order: 2; }
  .hero-actions, .hero-stats { justify-content: center; }
  .hero-badge { display: inline-flex; }
  .float-card { display: none; }
  .features-grid { grid-template-columns: 1fr; }
  .feature-large { grid-column: span 1; }
  .demo-wrap { grid-template-columns: 1fr; }
  .security-inner { grid-template-columns: 1fr; gap: 40px; }
  .footer-top { grid-template-columns: 1fr; gap: 40px; }
  .footer-links { grid-template-columns: repeat(2, 1fr); }
  .steps-line { display: none; }
  .step { padding: 30px 0; }
}

@media (max-width: 560px) {
  :root { --section-pad: 56px; }
  .eco-grid { grid-template-columns: 1fr; }
  .footer-links { grid-template-columns: repeat(2, 1fr); }
  .cta-inner { padding: 48px 24px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

/* ── Coming-soon links (footer placeholders) ──────────────────────────── */
.coming-soon-link {
  position: relative;
  opacity: 0.55;
  cursor: default !important;
  pointer-events: none;
}