/* ==========================================================================
   Fuse — shared stylesheet
   ========================================================================== */

:root {
  --bg: #14171c;
  --bg-raised: #1a1e25;
  --bg-raised-2: #20252d;
  --border: #2a2f38;
  --border-soft: #23272f;

  --text: #eceef1;
  --text-dim: #9aa0ab;
  --text-faint: #5f6570;

  --ember: #ff8a3d;
  --ember-light: #ffc88c;
  --ember-dim: rgba(255, 138, 61, 0.14);
  --cord: #8b909c;

  --good: #7dd6a8;

  --font-display: "Space Grotesk", "Inter", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;

  --max: 1080px;
  --radius: 10px;
  --radius-lg: 16px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* subtle grain / vignette so the flat charcoal isn't dead flat */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(ellipse 900px 500px at 82% -10%, rgba(255, 138, 61, 0.07), transparent 60%),
    radial-gradient(ellipse 700px 500px at 0% 100%, rgba(139, 144, 156, 0.05), transparent 60%);
}

img, svg { display: block; max-width: 100%; }

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

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  margin: 0;
  letter-spacing: -0.01em;
}

p { margin: 0; }

code, .mono {
  font-family: var(--font-mono);
}

::selection {
  background: var(--ember-dim);
  color: var(--ember-light);
}

:focus-visible {
  outline: 2px solid var(--ember);
  outline-offset: 3px;
  border-radius: 4px;
}

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ember);
  margin-bottom: 14px;
  display: block;
}

/* ---------------------------------- nav ---------------------------------- */

.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(20, 23, 28, 0.82);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-soft);
}

.nav-inner {
  position: relative;
  max-width: var(--max);
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 17px;
  letter-spacing: 0.01em;
}

.brand img { width: 26px; height: 26px; border-radius: 6px; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 14.5px;
  color: var(--text-dim);
}

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

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 14.5px;
  padding: 10px 18px;
  border-radius: 8px;
  border: 1px solid transparent;
  cursor: pointer;
  white-space: nowrap;
}

.btn-primary {
  background: var(--ember);
  color: #1a1206;
}

.btn-primary:hover { background: var(--ember-light); }

.btn-ghost {
  border-color: var(--border);
  color: var(--text);
  background: transparent;
}

.btn-ghost:hover { border-color: var(--text-dim); }

.nav .btn { padding: 9px 16px; }

/* menu toggle, mobile only */
.menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  border-radius: 8px;
  width: 38px;
  height: 38px;
  color: var(--text);
  cursor: pointer;
}

/* --------------------------------- hero ---------------------------------- */

.hero {
  position: relative;
  z-index: 1;
  padding: 84px 0 72px;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}

.hero h1 {
  font-size: clamp(34px, 4.6vw, 52px);
  margin-bottom: 20px;
}

.hero h1 .accent { color: var(--ember); }

.hero-sub {
  color: var(--text-dim);
  font-size: 17.5px;
  max-width: 46ch;
  margin-bottom: 30px;
}

.hero-ctas {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.hero-ctas .btn { padding: 13px 22px; font-size: 15px; }

/* ---------------------------- interactive demo ---------------------------- */

.demo {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  position: relative;
  box-shadow: 0 30px 60px -30px rgba(0, 0, 0, 0.6);
}

.demo-chrome {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
}

.demo-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--border);
}

.demo-title {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-faint);
  margin-left: 6px;
}

.composer {
  background: var(--bg);
  border: 1px solid var(--border-soft);
  border-radius: 10px;
  padding: 14px 16px;
  font-size: 14.5px;
  color: var(--text-dim);
  margin-bottom: 14px;
  min-height: 64px;
}

.composer .typed { color: var(--text); }

.composer .caret {
  display: inline-block;
  width: 2px;
  height: 15px;
  background: var(--ember);
  vertical-align: -2px;
  margin-left: 2px;
  animation: blink 1s step-end infinite;
}

@keyframes blink { 50% { opacity: 0; } }

.demo-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 2px;
  border-top: 1px dashed var(--border-soft);
  font-size: 13.5px;
  color: var(--text-dim);
}

.demo-row:first-of-type { border-top: none; }

.demo-row .label { color: var(--text-faint); }

.demo-row .value { font-family: var(--font-mono); color: var(--text); }

.fuse-track {
  margin: 18px 0 6px;
  position: relative;
  height: 54px;
}

.fuse-track svg { width: 100%; height: 100%; }

.fuse-cord {
  fill: none;
  stroke: var(--border);
  stroke-width: 6;
  stroke-linecap: round;
}

.fuse-burn {
  fill: none;
  stroke: var(--ember);
  stroke-width: 6;
  stroke-linecap: round;
  stroke-dasharray: 300;
  stroke-dashoffset: 300;
}

.fuse-burn.burning {
  transition: stroke-dashoffset linear;
}

.fuse-spark {
  transform: translate(0px, 0px);
}

.demo-status {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 13px;
}

.demo-status .countdown {
  color: var(--ember-light);
  font-size: 15px;
}

.demo-status .sent {
  color: var(--good);
  display: none;
}

.demo-status.is-sent .countdown { display: none; }
.demo-status.is-sent .sent { display: inline; }

.demo-actions {
  display: flex;
  gap: 10px;
  margin-top: 16px;
}

.demo-actions .btn { flex: 1; justify-content: center; font-size: 13.5px; padding: 10px 14px; }

.demo-note {
  margin-top: 14px;
  font-size: 12.5px;
  color: var(--text-faint);
  text-align: center;
}

/* ------------------------------ generic section --------------------------- */

.section {
  position: relative;
  z-index: 1;
  padding: 76px 0;
  border-top: 1px solid var(--border-soft);
}

.section h2 {
  font-size: clamp(24px, 3.2vw, 32px);
  max-width: 26ch;
}

.section-head {
  margin-bottom: 44px;
}

.section-body {
  color: var(--text-dim);
  font-size: 16px;
  max-width: 62ch;
  margin-top: 16px;
}

.section-body + .section-body { margin-top: 12px; }

/* -------------------------------- idea grid -------------------------------- */

.idea-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: start;
}

.spec-card {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.spec-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 13px 18px;
  font-size: 13.5px;
  border-bottom: 1px solid var(--border-soft);
}

.spec-row:last-child { border-bottom: none; }

.spec-row .k { color: var(--text-dim); }
.spec-row .v { font-family: var(--font-mono); color: var(--ember-light); }

.spec-card-title {
  padding: 12px 18px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-faint);
  border-bottom: 1px solid var(--border-soft);
}

/* --------------------------------- steps ----------------------------------- */

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

.step {
  border-top: 2px solid var(--border);
  padding-top: 18px;
  position: relative;
}

.step .num {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--ember);
  margin-bottom: 10px;
  display: block;
}

.step h3 {
  font-size: 16.5px;
  margin-bottom: 8px;
}

.step p {
  color: var(--text-dim);
  font-size: 14.5px;
}

.step kbd {
  font-family: var(--font-mono);
  background: var(--bg-raised-2);
  border: 1px solid var(--border);
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 12.5px;
  color: var(--ember-light);
}

/* -------------------------------- feature grid ------------------------------ */

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border-soft);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.feature {
  background: var(--bg-raised);
  padding: 26px 24px;
}

.feature h3 {
  font-size: 16px;
  margin-bottom: 8px;
}

.feature p {
  color: var(--text-dim);
  font-size: 14px;
}

.feature .tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 12px;
  display: block;
}

/* ------------------------------- hard-part -------------------------------- */

.hardpart {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 52px;
  align-items: center;
}

.hardpart-visual {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 22px;
}

.hardpart-visual .row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 0;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-dim);
  border-bottom: 1px solid var(--border-soft);
}

.hardpart-visual .row:last-child { border-bottom: none; }

.hardpart-visual .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
}

.dot-fail { background: var(--text-faint); }
.dot-ok { background: var(--good); }
.dot-live { background: var(--ember); box-shadow: 0 0 0 3px var(--ember-dim); }

/* --------------------------------- privacy strip --------------------------- */

.privacy-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.privacy-item .check {
  color: var(--good);
  font-family: var(--font-mono);
  margin-right: 8px;
}

.privacy-item h4 {
  font-size: 15px;
  margin-bottom: 6px;
  display: inline;
}

.privacy-item p {
  color: var(--text-dim);
  font-size: 14px;
  margin-top: 8px;
}

/* privacy page: permission list */

.perm-list {
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--border-soft);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  overflow: hidden;
}

.perm {
  background: var(--bg-raised);
  padding: 18px 20px;
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 20px;
  align-items: baseline;
}

.perm .name {
  font-family: var(--font-mono);
  color: var(--ember-light);
  font-size: 14px;
}

.perm .desc {
  color: var(--text-dim);
  font-size: 14.5px;
}

/* ----------------------------------- CTA ------------------------------------ */

.cta {
  text-align: left;
}

.cta-inner {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.cta h2 { font-size: 26px; margin-bottom: 10px; }
.cta p { color: var(--text-dim); }

/* --------------------------------- footer ------------------------------------ */

footer {
  border-top: 1px solid var(--border-soft);
  padding: 40px 0;
  position: relative;
  z-index: 1;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 15px;
  color: var(--text-dim);
}

.footer-brand img { width: 20px; height: 20px; border-radius: 5px; }

.footer-links {
  display: flex;
  gap: 22px;
  font-size: 13.5px;
  color: var(--text-dim);
}

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

.footer-bar {
  margin-top: 26px;
  padding-top: 22px;
  border-top: 1px solid var(--border-soft);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--text-faint);
  text-transform: uppercase;
}

/* --------------------------------- inner pages -------------------------------- */

.page-hero {
  padding: 64px 0 12px;
}

.page-hero h1 {
  font-size: clamp(30px, 4vw, 42px);
}

.page-hero p {
  color: var(--text-dim);
  font-size: 17px;
  max-width: 60ch;
  margin-top: 16px;
}

.deep-step {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 20px;
  padding: 30px 0;
  border-top: 1px solid var(--border-soft);
}

.deep-step:first-child { border-top: none; }

.deep-step .num {
  font-family: var(--font-mono);
  color: var(--ember);
  font-size: 20px;
}

.deep-step h3 {
  font-size: 18px;
  margin-bottom: 10px;
}

.deep-step p {
  color: var(--text-dim);
  font-size: 15px;
  max-width: 60ch;
}

.deep-step p + p { margin-top: 10px; }

.faq-item {
  border-top: 1px solid var(--border-soft);
  padding: 20px 0;
}

.faq-item:first-child { border-top: none; }

.faq-item summary {
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.faq-item summary::-webkit-details-marker { display: none; }

.faq-item summary::after {
  content: "+";
  font-family: var(--font-mono);
  color: var(--ember);
  font-size: 20px;
  margin-left: 16px;
}

.faq-item[open] summary::after { content: "\2212"; }

.faq-item p {
  color: var(--text-dim);
  font-size: 14.5px;
  margin-top: 12px;
  max-width: 62ch;
}

.about-lede {
  font-size: 19px;
  color: var(--text);
  max-width: 58ch;
  line-height: 1.65;
}

.about-lede + .about-lede { margin-top: 18px; color: var(--text-dim); font-size: 17px; }

.tool-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.tool-card {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  transition: border-color 0.15s ease;
}

.tool-card:hover { border-color: var(--text-faint); }

.tool-card .tag {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-faint);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.tool-card h3 { margin: 8px 0 6px; font-size: 17px; }

.tool-card p { color: var(--text-dim); font-size: 14px; }

/* ------------------------------------ responsive -------------------------------- */

@media (max-width: 860px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    background: var(--bg-raised);
    border-bottom: 1px solid var(--border-soft);
    padding: 8px 24px 16px;
  }
  .nav-links a { padding: 10px 0; width: 100%; }
  .nav-links.is-open { display: flex; }
  .menu-toggle { display: inline-flex; align-items: center; justify-content: center; }

  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .idea-grid { grid-template-columns: 1fr; gap: 32px; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .feature-grid { grid-template-columns: 1fr; }
  .hardpart { grid-template-columns: 1fr; gap: 28px; }
  .privacy-strip { grid-template-columns: 1fr; gap: 24px; }
  .tool-list { grid-template-columns: 1fr; }
  .cta-inner { flex-direction: column; align-items: flex-start; }
  .perm { grid-template-columns: 1fr; gap: 6px; }
}

@media (max-width: 520px) {
  .steps { grid-template-columns: 1fr; }
  .hero { padding: 56px 0 48px; }
  .section { padding: 56px 0; }
  .cta-inner { padding: 32px; }
}