:root {
  --bg: #06090f;
  --bg-elevated: #0c1219;
  --surface: #111827;
  --border: rgba(148, 163, 184, 0.12);
  --text: #f1f5f9;
  --muted: #94a3b8;
  --accent: #14b8a6;
  --accent-2: #38bdf8;
  --accent-glow: rgba(20, 184, 166, 0.35);
  --radius: 14px;
  --font: "DM Sans", system-ui, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: min(1120px, 92vw);
  margin-inline: auto;
}

/* Background */
.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -2;
  background-image:
    linear-gradient(rgba(20, 184, 166, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(20, 184, 166, 0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black, transparent);
}

.bg-glow {
  position: fixed;
  top: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 500px;
  background: radial-gradient(ellipse, var(--accent-glow), transparent 70%);
  z-index: -1;
  pointer-events: none;
}

/* Nav */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(12px);
  background: rgba(6, 9, 15, 0.75);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: -0.02em;
}

.logo-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 1.1rem;
  color: #042f2e;
}

.nav-links {
  display: none;
  gap: 1.75rem;
  font-size: 0.9375rem;
  color: var(--muted);
}

.nav-links a:hover {
  color: var(--text);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav-toggle {
  display: flex;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 10px;
  padding: 0.5rem;
  cursor: pointer;
}

@media (min-width: 768px) {
  .nav-links {
    display: flex;
  }
  .nav-toggle {
    display: none;
  }
}

.mobile-menu {
  display: none;
  flex-direction: column;
  gap: 0.5rem;
  padding: 0 0 1rem;
  border-top: 1px solid var(--border);
}

.mobile-menu.open {
  display: flex;
}

.mobile-menu a {
  padding: 0.6rem 0;
  color: var(--muted);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.6rem 1.15rem;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.9375rem;
  border: 1px solid transparent;
  transition: transform 0.15s, box-shadow 0.15s, background 0.15s;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), #0d9488);
  color: #042f2e;
  box-shadow: 0 4px 24px var(--accent-glow);
}

.btn-secondary {
  background: var(--surface);
  border-color: var(--border);
  color: var(--text);
}

.btn-ghost {
  color: var(--muted);
}

.btn-lg {
  padding: 0.85rem 1.5rem;
  font-size: 1rem;
}

/* Hero */
.hero {
  padding: 4.5rem 0 5rem;
}

.hero-grid {
  display: grid;
  gap: 3rem;
  align-items: center;
}

@media (min-width: 960px) {
  .hero-grid {
    grid-template-columns: 1fr 1.05fr;
  }
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  background: rgba(20, 184, 166, 0.12);
  border: 1px solid rgba(20, 184, 166, 0.25);
  color: #5eead4;
  font-size: 0.8125rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
}

.eyebrow-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
}

.hero h1 {
  font-size: clamp(2.25rem, 5vw, 3.25rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin: 0 0 1rem;
  font-weight: 700;
}

.hero h1 span {
  background: linear-gradient(120deg, #5eead4, var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-lead {
  font-size: 1.125rem;
  color: var(--muted);
  max-width: 32rem;
  margin: 0 0 1.75rem;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem 2rem;
  font-size: 0.875rem;
  color: var(--muted);
}

.hero-stats strong {
  display: block;
  color: var(--text);
  font-size: 1.125rem;
}

/* Panel preview */
.panel-preview {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) + 4px);
  overflow: hidden;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.45);
}

.panel-bar {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.65rem 1rem;
  background: #0a0f16;
  border-bottom: 1px solid var(--border);
  font-size: 0.75rem;
  color: var(--muted);
}

.panel-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #334155;
}

.panel-dot:nth-child(1) { background: #ef4444; }
.panel-dot:nth-child(2) { background: #eab308; }
.panel-dot:nth-child(3) { background: #22c55e; }

.panel-url {
  margin-left: auto;
  font-family: ui-monospace, monospace;
  color: #5eead4;
}

.panel-body {
  display: grid;
  grid-template-columns: 140px 1fr;
  min-height: 280px;
}

.panel-side {
  padding: 1rem;
  border-right: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.2);
}

.panel-brand {
  font-weight: 700;
  font-size: 0.9rem;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.panel-brand span {
  width: 22px;
  height: 22px;
  border-radius: 6px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  font-size: 0.65rem;
  display: grid;
  place-items: center;
  color: #042f2e;
  font-weight: 800;
}

.panel-nav {
  font-size: 0.8rem;
  color: var(--muted);
  padding: 0.45rem 0.5rem;
  border-radius: 8px;
}

.panel-nav.active {
  background: rgba(20, 184, 166, 0.15);
  color: #5eead4;
}

.panel-main {
  padding: 1.25rem;
}

.panel-main h3 {
  margin: 0;
  font-size: 1rem;
}

.panel-main p {
  margin: 0.25rem 0 1rem;
  font-size: 0.8rem;
  color: var(--muted);
}

.panel-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.metric {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.65rem;
  font-size: 0.75rem;
  color: var(--muted);
}

.metric strong {
  display: block;
  color: var(--text);
  font-size: 1.1rem;
}

.panel-rows {
  font-size: 0.75rem;
}

.panel-row {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border);
  color: var(--muted);
}

.panel-row.head {
  color: var(--text);
  font-weight: 600;
}

.status-ok {
  color: #34d399;
}

/* Sections */
section {
  padding: 4rem 0;
}

.section-label {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent);
  margin: 0 0 0.5rem;
}

.section-title {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  letter-spacing: -0.02em;
  margin: 0 0 0.75rem;
  line-height: 1.2;
}

.section-lead {
  color: var(--muted);
  max-width: 40rem;
  margin: 0 0 2.5rem;
}

.grid-3 {
  display: grid;
  gap: 1.25rem;
}

@media (min-width: 640px) {
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

.card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.35rem;
  transition: border-color 0.2s;
}

.card:hover {
  border-color: rgba(20, 184, 166, 0.35);
}

.card-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(20, 184, 166, 0.12);
  color: #5eead4;
  display: grid;
  place-items: center;
  margin-bottom: 1rem;
}

.card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
}

.card p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--muted);
}

/* Steps */
.steps {
  display: grid;
  gap: 1.25rem;
}

@media (min-width: 768px) {
  .steps {
    grid-template-columns: repeat(3, 1fr);
  }
}

.step {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
}

.step-num {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

.step h3 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
}

.step p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--muted);
}

/* CTA */
.cta-block {
  text-align: center;
  padding: 3rem 2rem;
  border-radius: calc(var(--radius) + 6px);
  background: linear-gradient(160deg, rgba(20, 184, 166, 0.15), rgba(56, 189, 248, 0.08));
  border: 1px solid rgba(20, 184, 166, 0.25);
}

.cta-block h2 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.5rem, 3vw, 2rem);
}

.cta-block p {
  color: var(--muted);
  max-width: 36rem;
  margin: 0 auto 1.5rem;
}

.cta-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}

/* FAQ */
.faq {
  max-width: 640px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--border);
}

.faq-q {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1.1rem 0;
  background: none;
  border: none;
  color: var(--text);
  font: inherit;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
}

.faq-a {
  display: none;
  padding: 0 0 1.1rem;
  color: var(--muted);
  font-size: 0.9375rem;
}

.faq-item.open .faq-a {
  display: block;
}

.faq-item.open .faq-q svg {
  transform: rotate(180deg);
}

/* Footer */
.footer {
  border-top: 1px solid var(--border);
  padding: 3rem 0 1.5rem;
  margin-top: 2rem;
}

.footer-grid {
  display: grid;
  gap: 2rem;
  margin-bottom: 2rem;
}

@media (min-width: 640px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr;
  }
}

.footer h4 {
  margin: 0 0 0.75rem;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer li {
  margin-bottom: 0.4rem;
}

.footer a {
  color: var(--muted);
  font-size: 0.9rem;
}

.footer a:hover {
  color: var(--text);
}

.footer-tagline {
  color: var(--muted);
  font-size: 0.9rem;
  margin: 0.5rem 0 0;
  max-width: 22rem;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem;
  font-size: 0.8125rem;
  color: var(--muted);
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}