/* usellit - marketing site
   Single stylesheet, no build step, no dependencies. */

:root {
  --ink-950: #080b14;
  --ink-900: #0d1220;
  --ink-850: #111829;
  --ink-800: #161f33;
  --line: #1f2b45;
  --text: #e7ecf7;
  --soft: #b9c5dd;
  --mute: #8494b3;
  --accent: #5b8cff;
  --accent-lift: #7ba2ff;
  --good: #3ecf8e;
  --radius: 14px;
  --max: 1120px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 84px; }

body {
  margin: 0;
  background:
    radial-gradient(1200px 620px at 10% -12%, rgba(91, 140, 255, 0.12), transparent 60%),
    radial-gradient(900px 500px at 95% 6%, rgba(62, 207, 142, 0.06), transparent 60%),
    var(--ink-950);
  color: var(--text);
  font-family: ui-sans-serif, -apple-system, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

code, pre, .mono {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

/* ---------------------------------------------------------------- topbar */

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 28px;
  padding: 14px 28px;
  border-bottom: 1px solid var(--line);
  background: rgba(8, 11, 20, 0.84);
  backdrop-filter: blur(12px);
}

/* --------------------------------------------------------------- wordmark */

/* Hidden sprite holding the logo symbol. Kept out of flow so it never affects layout. */
.sprite { position: absolute; width: 0; height: 0; overflow: hidden; }

.brand { display: inline-flex; align-items: center; gap: 11px; }

.logo {
  width: 38px;
  height: 38px;
  flex: none;
  display: block;
}

.footer .logo { width: 32px; height: 32px; }

/* The AI-first tag rides with the wordmark, so the positioning travels with the logo. */
.brand-tag {
  padding: 3px 9px;
  border: 1px solid rgba(91, 140, 255, 0.45);
  border-radius: 999px;
  background: rgba(91, 140, 255, 0.14);
  color: var(--accent);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  white-space: nowrap;
}

.wordmark {
  font-size: 30px;
  font-weight: 750;
  letter-spacing: -0.035em;
  line-height: 1;
  color: var(--text);
}

/* The u and the it carry the brand blue, sell stays white. */
.wordmark b { color: var(--accent); font-weight: 750; }

.footer .wordmark { font-size: 26px; }

.topnav {
  display: flex;
  gap: 24px;
  font-size: 14.5px;
  color: var(--mute);
}

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

.topcta { margin-left: auto; display: flex; gap: 10px; }

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

.hero {
  max-width: var(--max);
  margin: 0 auto;
  padding: 104px 28px 80px;
}

/* Double the old 13px. Tracking eases off as the size climbs, otherwise the line
   runs too wide to read as a label. Clamped so it does not blow out on a phone. */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 22px;
  padding: 9px 20px;
  border: 1px solid rgba(91, 140, 255, 0.42);
  border-radius: 999px;
  background: rgba(91, 140, 255, 0.12);
  font-size: clamp(19px, 2.6vw, 26px);
  font-weight: 640;
  letter-spacing: 0.05em;
  line-height: 1.15;
  text-transform: uppercase;
  color: var(--accent);
}

.eyebrow .dot {
  width: 9px;
  height: 9px;
  flex: none;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(91, 140, 255, 0.2);
}

.hero h1 {
  margin: 0 0 22px;
  max-width: 21ch;
  font-size: clamp(36px, 5.6vw, 62px);
  line-height: 1.05;
  letter-spacing: -0.035em;
  font-weight: 700;
  text-wrap: balance;
}

.lede {
  margin: 0;
  max-width: 60ch;
  font-size: 18.5px;
  color: var(--soft);
}

.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin: 34px 0 0; }
.cta-row.center { justify-content: center; }

.micro { margin: 16px 0 0; font-size: 13.5px; color: var(--mute); }

.btn {
  display: inline-block;
  padding: 12px 22px;
  border: 1px solid var(--line);
  border-radius: 10px;
  font-size: 15px;
  font-weight: 560;
  color: var(--text);
  transition: border-color 0.15s, background 0.15s, transform 0.15s;
}

.btn:hover { border-color: #33456d; background: var(--ink-850); transform: translateY(-1px); }

.btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #06101f;
  font-weight: 620;
}

.btn.primary:hover { background: var(--accent-lift); border-color: var(--accent-lift); }

.btn.small { padding: 8px 15px; font-size: 14px; }
.btn.wide { display: block; text-align: center; margin-top: 22px; }

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
  margin: 64px 0 0;
  padding: 28px 0 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.hero-stats li { display: flex; flex-direction: column; }
.hero-stats strong { font-size: 26px; letter-spacing: -0.02em; }
.hero-stats span { font-size: 13px; color: var(--mute); }

/* -------------------------------------------------------------- sections */

.section {
  max-width: var(--max);
  margin: 0 auto;
  padding: 84px 28px;
}

.section.narrow { max-width: 820px; text-align: center; }

.section.alt {
  max-width: none;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(17, 24, 41, 0.55), rgba(8, 11, 20, 0));
}

.section.alt > * {
  max-width: var(--max);
  margin-left: auto;
  margin-right: auto;
}

.section-head { margin-bottom: 40px; }
.section-head.center { text-align: center; }
.section-head.center p { margin-left: auto; margin-right: auto; }

.section-head h2 {
  margin: 0 0 10px;
  font-size: clamp(27px, 3.6vw, 37px);
  letter-spacing: -0.03em;
  font-weight: 660;
}

.section-head p { margin: 0; max-width: 62ch; color: var(--mute); font-size: 16.5px; }

.chip {
  display: inline-block;
  margin-bottom: 14px;
  padding: 4px 12px;
  border-radius: 999px;
  background: rgba(91, 140, 255, 0.14);
  color: var(--accent);
  font-size: 12px;
  font-weight: 620;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* ----------------------------------------------------------- big statement */

.big {
  margin: 0 0 22px;
  font-size: clamp(28px, 4.4vw, 44px);
  line-height: 1.12;
  letter-spacing: -0.035em;
  font-weight: 680;
}

.big-sub {
  margin: 0 auto;
  max-width: 60ch;
  font-size: 18px;
  color: var(--soft);
}

.accentline {
  margin: 26px 0 0;
  font-size: 19px;
  font-weight: 600;
  color: var(--accent);
}

/* ----------------------------------------------------------------- cards */

.split { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }

.card {
  padding: 26px 24px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(17, 24, 41, 0.55);
  transition: border-color 0.15s, transform 0.15s;
}

.card:hover { border-color: #33456d; transform: translateY(-2px); }
.card h4 { margin: 0 0 8px; font-size: 17px; font-weight: 640; letter-spacing: -0.015em; }
.card p { margin: 0; font-size: 14.5px; color: var(--mute); }
.card p + p { margin-top: 10px; }
.card .mono { color: var(--accent); font-size: 13px; }

.ico { font-size: 22px; line-height: 1; margin-bottom: 14px; }

/* --------------------------------------------------------- ai features */

.grid-2.wide { gap: 22px; }

.feature {
  padding: 30px 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--ink-850), var(--ink-900));
}

.feature h3 {
  margin: 0 0 12px;
  font-size: 20px;
  font-weight: 640;
  letter-spacing: -0.022em;
}

.feature p { margin: 0; color: var(--soft); font-size: 15.5px; }

.assure {
  margin-top: 22px;
  padding: 26px 28px;
  border-left: 3px solid var(--accent);
  border-radius: 0 12px 12px 0;
  background: rgba(91, 140, 255, 0.07);
}

.assure h4 { margin: 0 0 8px; font-size: 18px; letter-spacing: -0.02em; }
.assure p { margin: 0; color: #cdd8ee; font-size: 15.5px; max-width: 78ch; }

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

.steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}

.steps li {
  padding: 26px 24px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(17, 24, 41, 0.45);
}

.num {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  margin-bottom: 14px;
  border-radius: 9px;
  background: rgba(91, 140, 255, 0.16);
  color: var(--accent);
  font-weight: 700;
  font-size: 15px;
}

.steps h4 { margin: 0 0 8px; font-size: 17px; letter-spacing: -0.015em; }
.steps p { margin: 0; font-size: 14.5px; color: var(--mute); }

/* ----------------------------------------------------------------- scale */

.scale {
  margin-top: 22px;
  padding: 30px 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--ink-850), var(--ink-900));
}

.scale h3 { margin: 0 0 20px; font-size: 20px; letter-spacing: -0.022em; }

.scale-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; }
.scale-grid strong { display: block; font-size: 17px; letter-spacing: -0.015em; }
.scale-grid span { display: block; margin-top: 3px; font-size: 13.5px; color: var(--mute); }

/* ----------------------------------------------------------------- plans */

.plan {
  position: relative;
  padding: 34px 30px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--ink-850), var(--ink-900));
  display: flex;
  flex-direction: column;
}

.plan.featured { border-color: rgba(91, 140, 255, 0.5); box-shadow: 0 0 0 1px rgba(91, 140, 255, 0.12); }

.ribbon {
  position: absolute;
  top: -11px;
  left: 30px;
  padding: 3px 12px;
  border-radius: 999px;
  background: var(--accent);
  color: #06101f;
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.plan h3 { margin: 0 0 18px; font-size: 21px; letter-spacing: -0.022em; }
.plan .price { margin: 0; font-size: 15px; color: var(--mute); }
.plan .price span { font-size: 44px; font-weight: 700; letter-spacing: -0.035em; color: var(--text); margin-right: 8px; }
.plan .price-alt { margin: 6px 0 22px; font-size: 14.5px; color: var(--mute); }
.plan .price-alt strong { color: var(--good); }
.plan .ticks { flex: 1; }

/* ----------------------------------------------------------------- lists */

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

.ticks li {
  position: relative;
  padding: 7px 0 7px 26px;
  font-size: 15px;
  color: var(--soft);
}

.ticks li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 16px;
  width: 7px;
  height: 7px;
  border-radius: 2px;
  background: var(--accent);
}

.footnote {
  margin: 30px auto 0;
  max-width: 70ch;
  font-size: 14px;
  color: var(--mute);
}

.footnote.center { text-align: center; }

/* ------------------------------------------------------------------- faq */

.faq { max-width: 800px; margin: 0 auto; }

.faq details {
  border-bottom: 1px solid var(--line);
  padding: 4px 0;
}

.faq summary {
  cursor: pointer;
  list-style: none;
  padding: 18px 34px 18px 0;
  position: relative;
  font-size: 16.5px;
  font-weight: 570;
  letter-spacing: -0.012em;
}

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

.faq summary::after {
  content: "+";
  position: absolute;
  right: 6px;
  top: 15px;
  font-size: 21px;
  font-weight: 400;
  color: var(--accent);
  transition: transform 0.18s;
}

.faq details[open] summary::after { content: "\2013"; }

.faq summary:hover { color: var(--accent); }

.faq details p {
  margin: 0 0 20px;
  padding-right: 34px;
  color: var(--mute);
  font-size: 15.5px;
}

/* -------------------------------------------------------------- cta band */

.cta-band {
  max-width: none;
  padding: 92px 28px;
  text-align: center;
  border-top: 1px solid var(--line);
  background:
    radial-gradient(700px 340px at 50% 0%, rgba(91, 140, 255, 0.16), transparent 70%),
    rgba(13, 18, 32, 0.6);
}

.cta-band h2 {
  margin: 0 0 12px;
  font-size: clamp(28px, 4.2vw, 42px);
  letter-spacing: -0.035em;
  font-weight: 680;
}

.cta-band p { margin: 0 auto; max-width: 56ch; color: var(--soft); font-size: 17px; }

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

.footer {
  max-width: var(--max);
  margin: 0 auto;
  padding: 56px 28px 72px;
  color: var(--mute);
  font-size: 14px;
}

.foot-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 34px;
  border-bottom: 1px solid var(--line);
}

.foot-tag { margin: 14px 0 0; max-width: 34ch; }

.foot-grid h5 {
  margin: 6px 0 12px;
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text);
}

.foot-grid a { display: block; padding: 3px 0; }
.foot-grid a:hover { color: var(--text); }
.foot-grid .brand a:hover { color: inherit; }

.foot-legal { margin: 24px 0 0; font-size: 12.5px; }

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

@media (max-width: 940px) {
  .grid-3, .steps, .scale-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .hero-stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .topnav { display: none; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .split, .grid-2, .grid-3, .steps, .scale-grid { grid-template-columns: minmax(0, 1fr); }
  .hero { padding-top: 68px; }
  .section { padding: 60px 20px; }
  .cta-band { padding: 68px 20px; }
  .wordmark { font-size: 26px; }
  .topbar { padding: 12px 18px; gap: 14px; }
  .foot-grid { grid-template-columns: 1fr; }
}