/* Tourniquet landing page styles — dark mode only, no external deps */

:root {
  --bg: #0d0d0d;
  --bg-card: #161616;
  --bg-code: #1a1a1a;
  --fg: #e8e8e8;
  --fg-muted: #888;
  --accent: #8eff8e;
  --accent-dim: rgba(142, 255, 142, 0.15);
  --accent-border: rgba(142, 255, 142, 0.4);
  --danger: #ff6b6b;
  --font: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Consolas, "Liberation Mono", Menlo, monospace;
  --max-w: 720px;
  --radius: 8px;
  --transition: 0.15s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── Layout ── */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.5rem;
}

section { padding: 5rem 0; }
section + section { border-top: 1px solid #1e1e1e; }

/* ── Nav ── */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(13, 13, 13, 0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid #1e1e1e;
  padding: 1rem 0;
}

nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--fg);
  letter-spacing: -0.01em;
}

.nav-logo span { color: var(--accent); }

.nav-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
  font-size: 0.875rem;
  color: var(--fg-muted);
}

.nav-links a { color: var(--fg-muted); }
.nav-links a:hover { color: var(--fg); text-decoration: none; }

/* ── Hero ── */
#hero {
  padding: 6rem 0 5rem;
  text-align: center;
}

.hero-badge {
  display: inline-block;
  background: var(--accent-dim);
  border: 1px solid var(--accent-border);
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 0.3rem 0.75rem;
  border-radius: 100px;
  margin-bottom: 1.5rem;
}

h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 1.25rem;
}

h1 em {
  font-style: normal;
  color: var(--accent);
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--fg-muted);
  max-width: 580px;
  margin: 0 auto 2.5rem;
  line-height: 1.7;
}

.cta-row {
  display: flex;
  gap: 0.875rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 3.5rem;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--accent);
  color: #000;
  font-weight: 700;
  font-size: 1rem;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: opacity var(--transition), transform var(--transition);
}

.btn-primary:hover { opacity: 0.88; transform: translateY(-1px); text-decoration: none; }

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: transparent;
  color: var(--fg);
  font-weight: 600;
  font-size: 1rem;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius);
  border: 1px solid #333;
  cursor: pointer;
  transition: border-color var(--transition);
}

.btn-ghost:hover { border-color: #555; text-decoration: none; }

/* ── Terminal demo ── */
.terminal-wrap {
  max-width: 580px;
  margin: 0 auto;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid #2a2a2a;
  box-shadow: 0 20px 60px rgba(0,0,0,0.6);
  text-align: left;
}

.terminal-bar {
  background: #1e1e1e;
  padding: 0.6rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.terminal-dot {
  width: 12px; height: 12px;
  border-radius: 50%;
  background: #3a3a3a;
}

.terminal-dot:nth-child(1) { background: #ff5f57; }
.terminal-dot:nth-child(2) { background: #febc2e; }
.terminal-dot:nth-child(3) { background: #28c840; }

.terminal-title {
  font-size: 0.75rem;
  color: var(--fg-muted);
  margin-left: auto;
  margin-right: auto;
  font-family: var(--font-mono);
}

.terminal-body {
  background: var(--bg-code);
  padding: 1.25rem 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.8;
  overflow-x: auto;
}

.t-prompt { color: var(--fg-muted); }
.t-cmd { color: var(--fg); }
.t-stream { color: #b0d4ff; }
.t-stream-fade { color: #5a7ea0; }
.t-killed { color: var(--danger); font-weight: 700; }
.t-stop { color: var(--accent); }
.t-comment { color: #555; }

/* ── Section headings ── */
.section-label {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
}

/* ── Pain section ── */
.pain-grid {
  display: grid;
  gap: 1.5rem;
}

.pain-card {
  background: var(--bg-card);
  border: 1px solid #1e1e1e;
  border-radius: var(--radius);
  padding: 1.5rem;
}

.pain-card p { color: var(--fg-muted); }
.pain-card strong { color: var(--fg); }

.pain-card.highlight {
  border-color: rgba(255, 107, 107, 0.3);
  background: rgba(255, 107, 107, 0.05);
}

/* ── How it works ── */
.steps {
  display: grid;
  gap: 1.25rem;
}

.step {
  display: grid;
  grid-template-columns: 3rem 1fr;
  gap: 1rem;
  align-items: start;
  background: var(--bg-card);
  border: 1px solid #1e1e1e;
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
}

.step-icon {
  font-size: 1.75rem;
  line-height: 1;
  padding-top: 0.1rem;
}

.step h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.step p { color: var(--fg-muted); font-size: 0.925rem; }

.step code {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  background: var(--bg-code);
  border: 1px solid #2a2a2a;
  border-radius: 4px;
  padding: 0.15rem 0.5rem;
  color: var(--accent);
  margin-top: 0.4rem;
}

/* ── Install box ── */
.install-tabs {
  display: flex;
  gap: 0.25rem;
  margin-bottom: 0.875rem;
}

.tab-btn {
  background: transparent;
  border: 1px solid #2a2a2a;
  color: var(--fg-muted);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  padding: 0.35rem 0.75rem;
  border-radius: 4px;
  cursor: pointer;
  transition: all var(--transition);
}

.tab-btn.active, .tab-btn:hover {
  border-color: var(--accent-border);
  color: var(--accent);
  background: var(--accent-dim);
}

.install-block {
  background: var(--bg-code);
  border: 1px solid #2a2a2a;
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 1.5rem;
}

.install-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.6rem 1rem;
  background: #1a1a1a;
  border-bottom: 1px solid #2a2a2a;
}

.install-label {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--fg-muted);
}

.copy-btn {
  background: transparent;
  border: 1px solid #333;
  color: var(--fg-muted);
  font-size: 0.75rem;
  font-family: var(--font);
  padding: 0.25rem 0.6rem;
  border-radius: 4px;
  cursor: pointer;
  transition: all var(--transition);
}

.copy-btn:hover { border-color: var(--accent-border); color: var(--accent); }
.copy-btn.copied { color: var(--accent); border-color: var(--accent-border); }

.install-code {
  padding: 1rem 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--accent);
  white-space: pre;
  overflow-x: auto;
}

.install-alts {
  display: grid;
  gap: 1rem;
}

.install-alt {
  background: var(--bg-card);
  border: 1px solid #1e1e1e;
  border-radius: var(--radius);
  padding: 1.125rem 1.25rem;
}

.install-alt-label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.install-alt pre {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--fg-muted);
  white-space: pre-wrap;
  word-break: break-all;
}

.install-alt .soon {
  font-size: 0.8rem;
  color: var(--fg-muted);
  font-style: italic;
}

/* ── Trust card ── */
.trust-card {
  background: var(--bg-card);
  border: 1.5px solid var(--accent-border);
  border-radius: var(--radius);
  padding: 2rem;
}

.trust-card h2 { color: var(--accent); margin-bottom: 1.25rem; }

.trust-list {
  list-style: none;
  display: grid;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.trust-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.95rem;
  color: var(--fg-muted);
}

.trust-list li::before {
  content: "✓";
  color: var(--accent);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 0.05rem;
}

.trust-link {
  font-size: 0.85rem;
  color: var(--fg-muted);
}

/* ── Kill mechanism ── */
.sse-block {
  background: var(--bg-code);
  border: 1px solid #2a2a2a;
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.9;
  overflow-x: auto;
  margin: 1.5rem 0;
}

.sse-event { color: var(--fg-muted); }
.sse-key { color: #b0d4ff; }
.sse-val { color: var(--accent); }
.sse-stop { color: var(--danger); }

.kill-compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 1.5rem;
}

.kill-col {
  background: var(--bg-card);
  border: 1px solid #1e1e1e;
  border-radius: var(--radius);
  padding: 1.25rem;
}

.kill-col h4 {
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.kill-col p { font-size: 0.875rem; color: var(--fg-muted); }

.kill-col.bad h4 { color: var(--danger); }
.kill-col.good h4 { color: var(--accent); }

/* ── Footer ── */
footer {
  border-top: 1px solid #1e1e1e;
  padding: 2.5rem 0;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-links {
  display: flex;
  gap: 1.25rem;
  list-style: none;
  flex-wrap: wrap;
}

.footer-links a {
  font-size: 0.875rem;
  color: var(--fg-muted);
}

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

.footer-copy {
  font-size: 0.8rem;
  color: var(--fg-muted);
}

.footer-tagline {
  font-size: 0.8rem;
  color: #444;
  margin-top: 0.5rem;
  text-align: center;
}

/* ── Responsive ── */
@media (max-width: 600px) {
  section { padding: 3.5rem 0; }
  #hero { padding: 4rem 0 3.5rem; }

  .nav-links { display: none; }

  .cta-row { flex-direction: column; align-items: center; }
  .btn-primary, .btn-ghost { width: 100%; max-width: 300px; justify-content: center; }

  .kill-compare { grid-template-columns: 1fr; }

  .footer-inner { flex-direction: column; align-items: flex-start; }
}

/* ── Cursor blink ── */
@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

.cursor {
  display: inline-block;
  width: 0.55ch;
  height: 1.1em;
  background: var(--fg);
  vertical-align: text-bottom;
  animation: blink 1s step-end infinite;
  margin-left: 1px;
}