/* FTS Net Mon — landing page
   Dark theme, fluid layout, fully responsive.
   Single-file CSS, no external imports. */

:root {
  --bg: #0f0f17;
  --bg-2: #14141c;
  --card: #1f1f2c;
  --card-alt: #181824;
  --grid: #2a2a38;
  --text: #f0f0f0;
  --muted: #8a8a9a;
  --accent: #4fc3f7;
  --accent-2: #29b6f6;
  --ok: #4caf50;
  --warn: #ff9800;
  --fail: #f44336;
  --max: 1180px;

  --radius: 8px;
  --radius-lg: 12px;
  --shadow: 0 10px 30px -12px rgba(0, 0, 0, 0.55);

  --t-fast: 150ms ease;
  --t: 220ms ease;
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
               "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  font-size: clamp(15px, 0.92rem + 0.15vw, 17px);
  overflow-x: hidden;
}

img, svg { max-width: 100%; display: block; }
a { color: var(--accent); text-decoration: none; transition: color var(--t-fast); }
a:hover { color: var(--accent-2); }

code {
  font-family: "JetBrains Mono", "Fira Code", "Consolas", "Courier New", monospace;
  font-size: 0.92em;
  background: rgba(255, 255, 255, 0.06);
  padding: 1px 6px;
  border-radius: 4px;
  color: #d6e1ff;
}

pre {
  margin: 0;
  background: var(--card-alt);
  border: 1px solid var(--grid);
  border-radius: var(--radius);
  padding: 14px 16px;
  overflow-x: auto;
  font-family: "JetBrains Mono", "Fira Code", "Consolas", monospace;
  font-size: 13px;
  line-height: 1.55;
  color: #e3eaff;
}
pre code { background: transparent; padding: 0; color: inherit; }

.container {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding-left: clamp(16px, 4vw, 32px);
  padding-right: clamp(16px, 4vw, 32px);
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--accent);
  color: #000;
  padding: 8px 14px;
  z-index: 1000;
  font-weight: 600;
  border-radius: 0 0 6px 6px;
}
.skip-link:focus { left: 0; }

/* ===== Header / nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(15, 15, 23, 0.85);
  backdrop-filter: saturate(140%) blur(8px);
  -webkit-backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid var(--grid);
}
.nav {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 0;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: 0.3px;
  color: var(--text);
}
.brand:hover { color: var(--text); }
.brand-mark { width: 28px; height: 28px; }
.brand-text { font-size: 1rem; }

.primary-nav {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 22px;
}
.primary-nav a {
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 500;
  position: relative;
  padding: 4px 0;
}
.primary-nav a:hover { color: var(--text); }
.primary-nav a.nav-cta {
  background: var(--accent);
  color: #000;
  padding: 6px 14px;
  border-radius: 999px;
  font-weight: 700;
}
.primary-nav a.nav-cta:hover { background: var(--accent-2); color: #000; }

.nav-toggle {
  margin-left: auto;
  display: none;
  width: 40px;
  height: 40px;
  background: transparent;
  border: 1px solid var(--grid);
  border-radius: 6px;
  cursor: pointer;
  padding: 0;
  position: relative;
}
.nav-toggle span {
  position: absolute;
  left: 9px; right: 9px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform var(--t), opacity var(--t-fast);
}
.nav-toggle span:nth-child(1) { top: 12px; }
.nav-toggle span:nth-child(2) { top: 19px; }
.nav-toggle span:nth-child(3) { top: 26px; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== Hero ===== */
.hero {
  padding: clamp(48px, 8vw, 96px) 0 clamp(40px, 6vw, 72px);
  background:
    radial-gradient(ellipse at 80% 0%, rgba(79, 195, 247, 0.13), transparent 55%),
    radial-gradient(ellipse at 10% 100%, rgba(76, 175, 80, 0.08), transparent 55%),
    var(--bg);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: clamp(28px, 5vw, 60px);
  align-items: center;
}
.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--muted);
  background: rgba(79, 195, 247, 0.08);
  border: 1px solid rgba(79, 195, 247, 0.25);
  padding: 5px 12px;
  border-radius: 999px;
  margin-bottom: 22px;
}
.hero h1 {
  font-size: clamp(2rem, 1rem + 3.4vw, 3.6rem);
  line-height: 1.08;
  margin: 0 0 20px;
  letter-spacing: -0.02em;
  background: linear-gradient(180deg, #ffffff 0%, #c5d2e7 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.lead {
  font-size: clamp(1rem, 0.9rem + 0.3vw, 1.15rem);
  color: #c5cad9;
  margin: 0 0 28px;
  max-width: 56ch;
}
.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 28px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 20px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform var(--t-fast), background var(--t-fast), color var(--t-fast);
}
.btn:active { transform: translateY(1px); }
.btn.primary {
  background: var(--accent);
  color: #000;
}
.btn.primary:hover { background: var(--accent-2); color: #000; }
.btn.ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--grid);
}
.btn.ghost:hover { background: var(--card); color: var(--text); }

.hero-meta {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  max-width: 540px;
}
.hero-meta div {
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid var(--grid);
  border-radius: var(--radius);
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;          /* allow grid item to shrink instead of overflow */
  overflow: hidden;
}
.hero-meta strong {
  font-size: clamp(0.95rem, 0.7rem + 0.6vw, 1.15rem);
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 0.2px;
  overflow-wrap: anywhere;  /* break long labels rather than spilling */
  hyphens: auto;
}
.hero-meta span {
  font-size: 0.75rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.6px;
  overflow-wrap: anywhere;
}

/* Terminal mock */
.hero-visual { perspective: 1000px; }
.terminal {
  background: #0a0a13;
  border: 1px solid var(--grid);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow: hidden;
  transform: rotate(-1.5deg);
  transition: transform var(--t);
}
.terminal:hover { transform: rotate(0deg); }
.terminal-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  background: #1a1a26;
  border-bottom: 1px solid var(--grid);
}
.dot {
  width: 12px; height: 12px; border-radius: 50%;
  display: inline-block;
}
.dot.red { background: #ff5f57; }
.dot.yellow { background: #febc2e; }
.dot.green { background: #28c840; }
.terminal-title {
  margin-left: 12px;
  color: var(--muted);
  font-size: 0.78rem;
  font-family: "Consolas", monospace;
}
.terminal-body {
  margin: 0;
  padding: 18px 20px;
  background: #0a0a13;
  color: #d6e1ff;
  font-family: "Consolas", "JetBrains Mono", monospace;
  font-size: clamp(0.78rem, 0.6rem + 0.4vw, 0.9rem);
  line-height: 1.7;
  border: 0;
  white-space: pre;
  overflow-x: auto;
}
.terminal-body .cmd { color: #fff; font-weight: 700; }
.terminal-body .dim  { color: var(--muted); }
.terminal-body .ok   { color: var(--ok); }
.terminal-body .warn { color: var(--warn); }
.terminal-body .fail { color: var(--fail); font-weight: 700; }

/* ===== Sections ===== */
.section {
  padding: clamp(56px, 8vw, 100px) 0;
}
.section-alt {
  background: var(--bg-2);
  border-block: 1px solid var(--grid);
}
.section-title {
  font-size: clamp(1.6rem, 1rem + 1.6vw, 2.4rem);
  margin: 0 0 8px;
  letter-spacing: -0.01em;
}
.section-sub {
  color: var(--muted);
  margin: 0 0 36px;
  max-width: 60ch;
  font-size: clamp(0.95rem, 0.85rem + 0.2vw, 1.05rem);
}

/* ===== Feature grid ===== */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 18px;
}
.card {
  background: var(--card);
  border: 1px solid var(--grid);
  border-radius: var(--radius-lg);
  padding: 22px;
  transition: transform var(--t), border-color var(--t), background var(--t-fast);
}
.card:hover {
  transform: translateY(-3px);
  border-color: rgba(79, 195, 247, 0.4);
}
.card-icon {
  width: 38px; height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 9px;
  background: rgba(79, 195, 247, 0.1);
  color: var(--accent);
  margin-bottom: 14px;
}
.card-icon svg { width: 22px; height: 22px; }
.card h3 {
  margin: 0 0 6px;
  font-size: 1.05rem;
  font-weight: 600;
}
.card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.93rem;
  line-height: 1.55;
}

/* ===== Preview / browser mock ===== */
.preview { display: flex; justify-content: center; }
.preview-window {
  width: 100%;
  max-width: 920px;
  background: var(--card);
  border: 1px solid var(--grid);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.window-bar {
  display: flex; align-items: center; gap: 6px;
  padding: 10px 14px;
  background: #1a1a26;
  border-bottom: 1px solid var(--grid);
}
.window-url {
  margin-left: auto;
  margin-right: auto;
  color: var(--muted);
  font-family: "Consolas", monospace;
  font-size: 0.8rem;
  background: var(--bg);
  padding: 3px 14px;
  border-radius: 999px;
  border: 1px solid var(--grid);
}
.window-body {
  padding: clamp(14px, 2vw, 22px);
  background: var(--bg-2);
}

.mock-banner {
  display: flex;
  align-items: center;
  gap: clamp(14px, 3vw, 28px);
  padding: 14px 18px;
  background: var(--card);
  border: 1px solid var(--grid);
  border-radius: var(--radius);
  margin-bottom: 14px;
  flex-wrap: wrap;
}
.mock-group { display: flex; flex-direction: column; }
.mock-lbl {
  font-size: 0.7rem;
  letter-spacing: 1.4px;
  font-weight: 700;
  color: var(--muted);
}
.mock-status { font-weight: 700; font-size: 1.15rem; }
.mock-status.ok { color: var(--ok); }
.mock-status.warn { color: var(--warn); }
.mock-status.fail { color: var(--fail); }
.mock-status.muted { color: var(--muted); }
.mock-clock {
  margin-left: auto;
  font-family: "Consolas", monospace;
  color: var(--muted);
  font-size: 0.8rem;
}

.mock-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 12px;
  margin-bottom: 14px;
}
.mock-card {
  background: var(--card);
  border: 1px solid var(--grid);
  border-radius: var(--radius);
  padding: 12px 14px;
}
.mock-card-head {
  display: flex; align-items: center; gap: 8px;
  margin-bottom: 8px;
}
.mock-light {
  width: 10px; height: 10px; border-radius: 50%; background: var(--muted);
}
.mock-light.ok   { background: var(--ok);   box-shadow: 0 0 6px var(--ok); }
.mock-light.warn { background: var(--warn); box-shadow: 0 0 6px var(--warn); }
.mock-light.fail { background: var(--fail); box-shadow: 0 0 6px var(--fail); }
.mock-name { font-size: 0.86rem; font-weight: 600; }
.mock-stats {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 4px;
  font-family: "Consolas", monospace;
  font-size: 0.75rem;
  color: var(--text);
  margin-bottom: 8px;
  text-align: center;
}
.mock-spark {
  width: 100%;
  height: 32px;
  background: var(--card-alt);
  border-radius: 4px;
}

.mock-events {
  background: var(--card);
  border: 1px solid var(--grid);
  border-radius: var(--radius);
  padding: 10px 14px;
  font-family: "Consolas", monospace;
  font-size: 0.8rem;
  display: flex;
  flex-direction: column;
  gap: 4px;
  max-height: 140px;
  overflow-y: auto;
}
.mock-events .ev { display: flex; gap: 12px; }
.ev-ts { color: var(--muted); flex-shrink: 0; }
.ev-ok   { color: var(--ok); }
.ev-warn { color: var(--warn); }
.ev-fail { color: var(--fail); font-weight: 700; }

/* ===== Steps ===== */
.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 18px;
  counter-reset: step;
}
.steps li {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 18px;
  align-items: start;
  background: var(--card);
  border: 1px solid var(--grid);
  border-radius: var(--radius-lg);
  padding: 22px;
}
.step-num {
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  background: rgba(79, 195, 247, 0.12);
  color: var(--accent);
  font-weight: 700;
  font-size: 1.05rem;
}
.step-body h3 { margin: 0 0 10px; font-size: 1.05rem; }
.step-hint { color: var(--muted); margin: 10px 0 0; font-size: 0.9rem; }

.callout {
  margin-top: 28px;
  padding: 14px 18px;
  border-left: 3px solid var(--warn);
  background: rgba(255, 152, 0, 0.06);
  color: #ffe6c2;
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: 0.92rem;
}
.callout strong { color: var(--warn); }

/* ===== API table ===== */
.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--grid);
  border-radius: var(--radius-lg);
  background: var(--card);
}
.api-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 540px;
  font-size: 0.92rem;
}
.api-table th, .api-table td {
  text-align: left;
  padding: 12px 16px;
  border-bottom: 1px solid var(--grid);
  vertical-align: top;
}
.api-table th {
  font-weight: 700;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--muted);
}
.api-table tr:last-child td { border-bottom: 0; }
.meth {
  display: inline-block;
  font-family: "Consolas", monospace;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.6px;
  padding: 2px 8px;
  border-radius: 4px;
}
.meth.get  { background: rgba(76, 175, 80, 0.15); color: var(--ok); }
.meth.post { background: rgba(79, 195, 247, 0.15); color: var(--accent); }

.sub-title {
  margin: 32px 0 12px;
  font-size: 1rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}
.code-block {
  background: var(--card-alt);
}

/* ===== Architecture diagram ===== */
.arch {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
.arch-row {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: center;
}
.arch-arrow {
  color: var(--muted);
  font-size: 0.8rem;
  letter-spacing: 1px;
}
.arch-box {
  min-width: 200px;
  padding: 16px 20px;
  border-radius: var(--radius);
  background: var(--card);
  border: 1px solid var(--grid);
  text-align: center;
  display: flex; flex-direction: column;
  font-weight: 600;
}
.arch-box small {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  font-weight: 400;
  font-size: 0.78rem;
}
.arch-box.top { background: rgba(79, 195, 247, 0.08); border-color: rgba(79, 195, 247, 0.3); }
.arch-box.accent { background: rgba(79, 195, 247, 0.12); border-color: var(--accent); color: var(--accent); }
.arch-box.ok { background: rgba(76, 175, 80, 0.08); border-color: rgba(76, 175, 80, 0.3); }
.arch-box.outline { border-style: dashed; }

/* ===== CTA section ===== */
.section-cta {
  background:
    radial-gradient(ellipse at 50% 0%, rgba(79, 195, 247, 0.15), transparent 60%),
    var(--bg-2);
  text-align: center;
}
.cta-wrap h2 {
  font-size: clamp(1.6rem, 1rem + 1.5vw, 2.2rem);
  margin: 0 0 12px;
}
.cta-wrap p {
  color: var(--muted);
  max-width: 50ch;
  margin: 0 auto 24px;
}
.cta-wrap .cta-row { justify-content: center; }

/* ===== Footer ===== */
.site-footer {
  background: var(--bg-2);
  border-top: 1px solid var(--grid);
  padding: 48px 0 24px;
  font-size: 0.92rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 28px;
  margin-bottom: 36px;
}
.footer-grid h4 {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--muted);
  margin: 0 0 12px;
}
.footer-grid nav { display: flex; flex-direction: column; gap: 8px; }
.footer-grid nav a {
  color: var(--text);
  font-size: 0.92rem;
}
.footer-grid nav a:hover { color: var(--accent); }
.muted { color: var(--muted); margin: 8px 0 0; font-size: 0.88rem; }

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

/* ============================================================
   RESPONSIVE BREAKPOINTS
   ============================================================ */

@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { order: 2; }
  .terminal { transform: rotate(0deg); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
  .nav-toggle { display: block; margin-left: auto; }
  .primary-nav {
    position: fixed;
    inset: 64px 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--bg-2);
    border-bottom: 1px solid var(--grid);
    padding: 12px clamp(16px, 4vw, 32px) 18px;
    transform: translateY(-110%);
    transition: transform var(--t);
    box-shadow: var(--shadow);
  }
  .primary-nav.open { transform: translateY(0); }
  .primary-nav a {
    padding: 12px 0;
    border-bottom: 1px solid var(--grid);
    font-size: 1rem;
    color: var(--text);
  }
  .primary-nav a:last-child { border-bottom: 0; }
  .primary-nav a.nav-cta {
    margin-top: 10px;
    text-align: center;
    border-radius: 8px;
  }

  .hero-meta { grid-template-columns: repeat(2, 1fr); }
  .steps li { grid-template-columns: 44px 1fr; gap: 14px; padding: 18px; }
  .step-num { width: 32px; height: 32px; font-size: 0.9rem; }
  .arch-box { min-width: 0; width: 100%; }
}

@media (max-width: 460px) {
  .footer-grid { grid-template-columns: 1fr; gap: 22px; }
  .hero-meta { gap: 10px; }
  .hero-meta div { padding: 10px 12px; }
  .feature-grid { gap: 14px; }
  .card { padding: 18px; }
  .mock-stats { grid-template-columns: repeat(3, 1fr); }
}

/* Print: keep things readable */
@media print {
  body { background: white; color: black; }
  .site-header, .nav-toggle, .site-footer, .terminal, .preview { display: none !important; }
  .section { padding: 24px 0; page-break-inside: avoid; }
  a { color: black; text-decoration: underline; }
}