:root {
  --bg: #ffffff;
  --bg-subtle: #f3f3f3;
  --bg-card: #ebebeb;
  --text: #0a0a0a;
  --text-muted: #666666;
  --text-faint: #aaaaaa;
  --border: #e2e2e2;
  --cisco: #00bceb;
  --radius: 10px;
  --radius-lg: 14px;
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: geometricPrecision;
}
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ── NAV ── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(255,255,255,0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
  height: 46px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav-logo-arrow { color: var(--cisco); }
.nav-logo-name { color: var(--text); font-weight: 500; }

/* ── BUTTONS ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
  border: 1px solid transparent;
  font-family: var(--font-sans);
  white-space: nowrap;
}
.btn-primary {
  background: var(--text);
  color: #fff;
  border-color: var(--text);
}
.btn-primary:hover { background: #2a2a2a; border-color: #2a2a2a; }
.btn-outline {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}
.btn-outline:hover { border-color: #999; background: var(--bg-subtle); }

/* ── CONTAINER ── */
.container { max-width: 1200px; margin: 0 auto; padding: 0 32px; }

/* ── HERO ── */
.hero {
  padding: 88px 0 64px;
}
.hero-title {
  font-size: clamp(52px, 6.5vw, 80px);
  font-weight: 700;
  letter-spacing: -0.045em;
  line-height: 1.02;
  margin-bottom: 18px;
  max-width: 640px;
}
.hero-subtitle {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 28px;
  max-width: 420px;
}
.hero-cta {
  display: flex;
  gap: 10px;
  margin-bottom: 52px;
  flex-wrap: wrap;
}
.hero-mockup {
  width: 100%;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  aspect-ratio: 16/9;
  border: 1px solid var(--border);
  overflow: hidden;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-mockup-inner {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-faint);
  text-align: center;
}
.hero-mockup-inner p { margin-top: 8px; }
.hero-mockup iframe,
.hero-mockup video,
.hero-mockup img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: none;
  object-fit: cover;
}

/* ── FEATURES ── */
.feature {
  padding: 80px 0;
  border-top: 1px solid var(--border);
}
.feature-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.feature-grid-rev .feature-text { order: 2; }
.feature-grid-rev .feature-mockup { order: 1; }
.feature-eyebrow {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--text-faint);
  margin-bottom: 14px;
}
.feature h2 {
  font-size: clamp(28px, 3vw, 38px);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.1;
  margin-bottom: 16px;
}
.feature > .feature-grid > .feature-text > p,
.feature-text > p {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 20px;
}
.feature-bullets {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.feature-bullets li {
  font-size: 13.5px;
  color: var(--text-muted);
  padding-left: 16px;
  position: relative;
  line-height: 1.5;
}
.feature-bullets li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--text-faint);
}
.feature-mockup {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  aspect-ratio: 5/4;
  border: 1px solid var(--border);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.mockup-terminal {
  width: 85%;
  background: #1a1a1a;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 12px 40px rgba(0,0,0,0.25);
}
.mockup-terminal-bar {
  padding: 10px 14px;
  background: #2a2a2a;
  display: flex;
  align-items: center;
  gap: 6px;
}
.dot { width: 10px; height: 10px; border-radius: 50%; }
.dot-r { background: #ff5f56; }
.dot-y { background: #ffbd2e; }
.dot-g { background: #27c93f; }
.mockup-terminal-body {
  padding: 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
}
.t-prompt { color: #4ade80; }
.t-cmd { color: #e8e8e8; }
.t-out { color: #888; }
.t-key { color: var(--cisco); }
.t-val { color: #fbbf24; }
.t-str { color: #a78bfa; }

/* ── TOOLS / INFRA ── */
.infra-section {
  padding: 80px 0;
  border-top: 1px solid var(--border);
}
.infra-top {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 48px;
  gap: 32px;
  flex-wrap: wrap;
}
.infra-headline {
  font-size: clamp(40px, 5vw, 60px);
  font-weight: 700;
  letter-spacing: -0.045em;
  line-height: 1.04;
  max-width: 380px;
}
.infra-right {
  max-width: 340px;
}
.infra-sub {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 20px;
}
.infra-sub a { color: var(--text); text-decoration: underline; text-underline-offset: 3px; }
.tools-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.tool-card {
  background: var(--bg);
  padding: 22px 20px;
  transition: background 0.15s;
}
.tool-card:hover { background: var(--bg-subtle); }
.tool-icon {
  width: 30px; height: 30px;
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: 7px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-muted);
  margin-bottom: 12px;
  flex-shrink: 0;
}
.tool-name {
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 5px;
  color: var(--text);
  font-family: var(--font-mono);
}
.tool-desc { font-size: 12.5px; color: var(--text-muted); line-height: 1.5; }

/* ── INSTALL ── */
.install-section {
  padding: 80px 0;
  border-top: 1px solid var(--border);
}
.install-section h2 {
  font-size: clamp(32px, 4vw, 48px);
  font-weight: 700;
  letter-spacing: -0.04em;
  margin-bottom: 8px;
}
.install-section .install-lead {
  font-size: 15px;
  color: var(--text-muted);
  margin-bottom: 48px;
}
.install-step { margin-bottom: 44px; }
.install-step h3 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 8px;
  letter-spacing: -0.02em;
}
.install-step > p { font-size: 14px; color: var(--text-muted); margin-bottom: 16px; }
.install-step a { color: var(--text); text-decoration: underline; text-underline-offset: 3px; }
.install-step ol {
  padding-left: 20px;
  color: var(--text-muted);
  font-size: 14px;
  line-height: 2.2;
}
.install-step ol strong { color: var(--text); }

/* tabs */
.tabs { width: 100%; }
.tab-list {
  display: flex;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}
.tab-btn {
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: all 0.15s;
  font-family: var(--font-sans);
  margin-bottom: -1px;
  white-space: nowrap;
}
.tab-btn:hover { color: var(--text); }
.tab-btn.active { color: var(--text); border-bottom-color: var(--text); }
.tab-panels {
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-top: none;
  border-radius: 0 0 var(--radius) var(--radius);
}
.tab-panel { display: none; padding: 20px; }
.tab-panel.active { display: block; }

/* code */
.code-label {
  font-size: 10.5px;
  color: var(--text-faint);
  margin-bottom: 6px;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  font-family: var(--font-mono);
}
.code-block {
  background: var(--text);
  border-radius: var(--radius);
  padding: 14px 16px;
  position: relative;
  margin-bottom: 14px;
}
.code-block:last-child { margin-bottom: 0; }
.code-block pre {
  font-family: var(--font-mono);
  font-size: 13px;
  color: #e0e0e0;
  white-space: pre;
  line-height: 1.6;
  padding-right: 58px;
  overflow-x: auto;
}
.copy-btn {
  position: absolute;
  top: 10px; right: 10px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.15);
  color: rgba(255,255,255,0.55);
  font-size: 11px;
  padding: 3px 10px;
  border-radius: 4px;
  cursor: pointer;
  font-family: var(--font-sans);
  transition: all 0.15s;
}
.copy-btn:hover { color: #fff; border-color: rgba(255,255,255,0.3); }
.copy-btn.copied { color: #4ade80; }

.inline-code {
  font-family: var(--font-mono);
  font-size: 12.5px;
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  padding: 1px 6px;
  border-radius: 4px;
  color: var(--text);
}

/* ── FOOTER ── */
.footer {
  border-top: 1px solid var(--border);
  padding: 40px 0 48px;
}
.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 40px;
}
.footer-brand {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.footer-brand-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--cisco);
}
.footer-tagline { font-size: 12px; color: var(--text-faint); margin-bottom: 0; line-height: 1.5; }
.footer-col-label {
  font-size: 10.5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-faint);
  margin-bottom: 14px;
}
.footer-col-links { display: flex; flex-direction: column; gap: 10px; }
.footer-col-links a { font-size: 13px; color: var(--text-muted); transition: color 0.15s; }
.footer-col-links a:hover { color: var(--text); }

/* ── BOTTOM BAR ── */
.bottom-bar {
  position: fixed;
  bottom: 20px; right: 24px;
  display: flex;
  align-items: center;
  gap: 14px;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 8px 18px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.1);
  z-index: 200;
}
.bottom-bar a {
  font-size: 13px;
  color: var(--text-muted);
  transition: color 0.15s;
  display: flex;
  align-items: center;
  gap: 5px;
}
.bottom-bar a:hover { color: var(--text); }
.bottom-bar-sep { width: 1px; height: 14px; background: var(--border); }

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  .feature-grid { grid-template-columns: 1fr; gap: 32px; }
  .feature-grid-rev .feature-text { order: 1; }
  .feature-grid-rev .feature-mockup { order: 2; }
  .tools-grid { grid-template-columns: repeat(2, 1fr); }
  .infra-top { flex-direction: column; align-items: flex-start; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .container { padding: 0 20px; }
  .nav-inner { padding: 0 20px; }
  .tools-grid { grid-template-columns: 1fr 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
}