/* Docusapiens landing — mascot-led brand gradient, built around the sampled
   violet-to-blue gradient in logos/docusapiens-logo.png (#BB44FF -> #19ABFF). */

:root {
  --brand-a: #bb44ff;
  --brand-b: #19abff;
  --brand-grad: linear-gradient(135deg, var(--brand-a), var(--brand-b));
  --btn-a: #9a3bdb;
  --btn-b: #0e79c7;
  --btn-grad: linear-gradient(135deg, var(--btn-a), var(--btn-b));

  --bg: #fbfafd;
  --surface: #ffffff;
  --surface-2: #f3effa;
  --ink: #15121c;
  --ink-soft: #57515f;
  --border: rgba(21, 18, 28, 0.1);
  --focus: var(--btn-b);

  --display: "Space Grotesk", system-ui, sans-serif;
  --body: "Inter", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --gut: clamp(1.25rem, 4vw, 3rem);
  --sec: clamp(4.5rem, 9vw, 7.5rem);
}

:root[data-theme="dark"] {
  --brand-a: #c158ff;
  --brand-b: #33b4ff;
  --btn-a: #a544e5;
  --btn-b: #1678c7;

  --bg: #0b0910;
  --surface: #151220;
  --surface-2: #1c1828;
  --ink: #f6f4f9;
  --ink-soft: #b4adc0;
  --border: rgba(255, 255, 255, 0.1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 5.5rem;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 400 1.0625rem/1.6 var(--body);
  scrollbar-color: var(--btn-b) var(--bg);
  caret-color: var(--btn-b);
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.25s var(--ease-out), color 0.25s var(--ease-out);
}

::selection { background: var(--brand-a); color: #fff; }

::-webkit-scrollbar { width: 12px; height: 12px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--btn-b); border-radius: 999px; border: 3px solid var(--bg); }

img, svg { display: block; max-width: 100%; }
h1, h2, h3, h4, p, ul, ol, figure { margin: 0; padding: 0; }
h1 { font: 700 2.75rem/1.15 var(--display); letter-spacing: -0.02em; }
h2 { font: 700 2.1rem/1.2 var(--display); letter-spacing: -0.02em; }
h3 { font: 700 1.4rem/1.3 var(--display); }
h4 { font: 700 1.05rem/1.3 var(--body); }
ul, ol { list-style: none; }
a { color: inherit; text-decoration: none; }
code { font-family: var(--mono); font-size: 0.9em; }

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

.skip {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 60;
  background: var(--ink);
  color: var(--bg);
  padding: 0.7rem 1.1rem;
  font-weight: 700;
  border-radius: 0.5rem;
  transition: top 0.2s var(--ease-out);
}
.skip:focus { top: 1rem; }

.wrap { width: min(100% - 2 * var(--gut), 74rem); margin-inline: auto; }
.ico { width: 1.15em; height: 1.15em; flex: none; }

/* The aurora's own gradient resurfaces as a thin seam at every section edge,
   so the hero's motif threads the whole page instead of stopping at the fold. */
.how::before, .features::before, .oss::before, .pricing::before, .footer::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--brand-grad);
  opacity: 0.55;
}

.section-title {
  font: 700 clamp(1.9rem, 3.4vw, 2.75rem) / 1.15 var(--display);
  letter-spacing: -0.02em;
  max-width: 30ch;
  margin-bottom: clamp(2.5rem, 5vw, 3.5rem);
}

/* Logo theme swap */
.logo-dark { display: none; }
:root[data-theme="dark"] .logo-light { display: none; }
:root[data-theme="dark"] .logo-dark { display: block; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.85rem 1.5rem;
  min-height: 3rem;
  border-radius: 999px;
  background: var(--btn-grad);
  color: #fff;
  border: 2px solid transparent;
  font: 700 1rem/1 var(--body);
  cursor: pointer;
  transition: transform 0.2s var(--ease-out), box-shadow 0.2s var(--ease-out);
  box-shadow: 0 8px 20px -8px rgba(15, 9, 20, 0.35);
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 12px 26px -6px rgba(15, 9, 20, 0.4); }
.btn:active { transform: translateY(0); }
.btn--sm { padding: 0.6rem 1.15rem; min-height: 2.5rem; font-size: 0.92rem; }
.btn--lg { padding: 1rem 1.9rem; min-height: 3.4rem; font-size: 1.05rem; }
.btn--outline {
  background: transparent;
  color: var(--ink);
  border-color: var(--border);
  box-shadow: none;
}
.btn--outline:hover { border-color: var(--btn-b); box-shadow: none; }

/* Header */
.top {
  position: sticky;
  top: 0;
  z-index: 40;
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.top__bar { display: flex; align-items: center; gap: 1.5rem; min-height: 4.5rem; }
.brand { display: inline-flex; align-items: center; gap: 0.65rem; }
.brand__name { font: 600 1.35rem/1 var(--display); letter-spacing: -0.01em; }

.nav {
  display: flex;
  align-items: center;
  gap: 1.85rem;
  margin-left: auto;
  font-weight: 600;
  font-size: 0.95rem;
}
.nav a { position: relative; padding-block: 0.3rem; }
.nav a::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 2px;
  background: var(--brand-grad);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s var(--ease-out);
}
.nav a:hover::after { transform: scaleX(1); }
.link-gh { display: inline-flex; align-items: center; gap: 0.4rem; }

.top__actions { display: flex; align-items: center; gap: 1rem; }

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--ink);
  cursor: pointer;
  transition: border-color 0.2s var(--ease-out), transform 0.2s var(--ease-out);
}
.theme-toggle:hover { border-color: var(--btn-b); transform: rotate(-8deg); }
.theme-toggle .i-moon { display: none; }
:root[data-theme="dark"] .theme-toggle .i-sun { display: none; }
:root[data-theme="dark"] .theme-toggle .i-moon { display: block; }

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border: none;
  background: none;
  color: var(--ink);
  cursor: pointer;
  margin-left: auto;
}
.nav-toggle .i-close { display: none; }
.nav-toggle[aria-expanded="true"] .i-menu { display: none; }
.nav-toggle[aria-expanded="true"] .i-close { display: block; }

/* Hero */
.hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(4rem, 10vw, 7rem) clamp(4.5rem, 9vw, 6.5rem);
}
.hero__aurora {
  position: absolute;
  inset: -20% -10% auto -10%;
  height: 130%;
  background:
    radial-gradient(50% 55% at 30% 20%, color-mix(in srgb, var(--brand-a) 55%, transparent), transparent 70%),
    radial-gradient(45% 50% at 75% 45%, color-mix(in srgb, var(--brand-b) 50%, transparent), transparent 70%);
  filter: blur(60px);
  opacity: 0.55;
  animation: aurora-drift 22s ease-in-out infinite alternate;
  pointer-events: none;
}
:root[data-theme="dark"] .hero__aurora { opacity: 0.4; }
@keyframes aurora-drift {
  0% { transform: translate3d(-2%, -1%, 0) scale(1); }
  100% { transform: translate3d(3%, 2%, 0) scale(1.08); }
}
.hero__grain {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-color: transparent;
}
.hero__grain::before {
  content: "";
  position: absolute;
  inset: 0;
  filter: url(#grain);
  opacity: 0.35;
}

.hero__inner {
  position: relative;
  display: flex;
  align-items: center;
  gap: clamp(1.75rem, 4vw, 3.5rem);
}
.hero__mascot {
  flex: none;
  width: clamp(130px, 14vw, 190px);
  height: auto;
  filter: drop-shadow(0 20px 40px rgba(15, 9, 20, 0.3));
}
.hero__title {
  font: 700 clamp(2.3rem, 5vw, 3.6rem) / 1.08 var(--display);
  letter-spacing: -0.03em;
  max-width: 16ch;
}
.hero__sub {
  margin-top: 1.25rem;
  max-width: 52ch;
  font-size: 1.15rem;
  color: var(--ink-soft);
}
.hero__ctas { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 2rem; }

/* How it works */
.how { padding-block: var(--sec); position: relative; }
.how__steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2.5rem;
  counter-reset: step;
}
.step {
  position: relative;
  padding-top: 2.75rem;
}
.step::before {
  content: "";
  position: absolute;
  top: 1.3rem;
  left: 3.25rem;
  right: -1.25rem;
  height: 2px;
  background: linear-gradient(90deg, var(--border), transparent);
}
.step:last-child::before { display: none; }
.step__num {
  position: absolute;
  top: 0;
  left: 0;
  width: 2.6rem;
  height: 2.6rem;
  border-radius: 999px;
  background: var(--btn-grad);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font: 700 1.05rem var(--display);
}
.step__icon { width: 2.75rem; height: 2.75rem; margin-block: 1.25rem 1rem; }
.step h3 { font: 700 1.2rem var(--display); letter-spacing: -0.01em; margin-bottom: 0.5rem; }
.step p { color: var(--ink-soft); font-size: 0.98rem; }

/* Features — flat, connected layout: same gradient-stroke line-mark
   treatment as the Steps row, no card chrome. */
.features {
  position: relative;
  padding: 7.5rem 3rem;
  background: var(--surface-2);
}
.features__lead {
  display: flex;
  align-items: flex-start;
  gap: 1.1rem;
  max-width: 56ch;
  font-size: 1.1rem;
  color: var(--ink-soft);
  margin-bottom: clamp(3rem, 6vw, 4.5rem);
}
.features__lead strong { color: var(--ink); font-family: var(--display); font-weight: 700; }
.features__lead code { background: var(--surface); padding: 0.1em 0.4em; border-radius: 0.3em; }
.features__lead-icon { width: 2rem; height: 2rem; flex: none; margin-top: 0.15em; }

.features__row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2.5rem;
}
.feature { position: relative; padding-top: 2.75rem; }
.feature::before {
  content: "";
  position: absolute;
  top: 1rem;
  left: 2.75rem;
  right: -1.25rem;
  height: 2px;
  background: linear-gradient(90deg, var(--border), transparent);
}
.feature:last-child::before { display: none; }
.feature__icon { width: 2.25rem; height: 2.25rem; margin-bottom: 1.1rem; }
.feature h3 { font: 700 1.15rem var(--display); letter-spacing: -0.01em; margin-bottom: 0.5rem; }
.feature p { color: var(--ink-soft); font-size: 0.98rem; }
.feature code { background: var(--surface); padding: 0.1em 0.4em; border-radius: 0.3em; }

/* Open source callout */
.oss { padding-block: var(--sec); position: relative; }
.oss__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}
.oss__copy p { color: var(--ink-soft); margin-block: 1.1rem 1.5rem; max-width: 42ch; }

.terminal {
  background: #100c18;
  border-radius: 1rem;
  overflow: hidden;
  box-shadow: 0 24px 60px -24px rgba(21, 18, 28, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.08);
}
.terminal__bar {
  display: flex;
  gap: 0.45rem;
  padding: 0.85rem 1rem;
  background: rgba(255, 255, 255, 0.04);
}
.terminal__bar span {
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.18);
}
.terminal__lines { padding: 1.4rem 1.5rem 1.6rem; }
.terminal__line {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 0.55rem;
  color: #f2eefb;
}
.terminal__line code { color: #d9c7ff; }
.copy-btn {
  border: none;
  background: none;
  color: rgba(255, 255, 255, 0.55);
  cursor: pointer;
  padding: 0.25rem;
  border-radius: 0.4rem;
  transition: color 0.2s var(--ease-out);
}
.copy-btn:hover { color: #fff; }
.copy-btn[data-copied="true"] { color: var(--btn-b); }

/* Pricing */
.pricing {
  position: relative;
  padding: 7.5rem 3rem;
  background: var(--surface-2);
}
.plans {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  align-items: start;
}
.plan {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 1.5rem;
  padding: 2.25rem 2rem;
  display: flex;
  flex-direction: column;
  height: 100%;
}
.plan--pro {
  position: relative;
  transform: translateY(-0.75rem);
  box-shadow: 0 24px 50px -20px rgba(15, 9, 20, 0.4);
  background:
    linear-gradient(var(--surface), var(--surface)) padding-box,
    var(--brand-grad) border-box;
  border: 2px solid transparent;
}
.plan__badge {
  align-self: flex-start;
  background: var(--btn-grad);
  color: #fff;
  font: 700 0.78rem/1 var(--body);
  padding: 0.4rem 0.75rem;
  border-radius: 999px;
  margin-bottom: 1rem;
}
.plan__name { font: 700 1.35rem var(--display); letter-spacing: -0.01em; }
.plan__price { font: 700 2.5rem/1 var(--display); margin-block: 0.75rem 0.4rem; }
.plan__price--custom { font-size: 2rem; }
.plan__period { font-size: 1rem; font-weight: 500; color: var(--ink-soft); }
.plan__desc { color: var(--ink-soft); margin-bottom: 1.5rem; }
.plan__list { display: flex; flex-direction: column; gap: 0.75rem; margin-bottom: 2rem; flex: 1; }
.plan__list li { display: flex; align-items: flex-start; gap: 0.6rem; font-size: 0.95rem; }
.plan__list .ico { color: var(--btn-b); margin-top: 0.15em; }
.plan__cta { width: 100%; }

/* Footer */
.footer { position: relative; background: var(--ink); color: color-mix(in srgb, var(--ink) 20%, #ffffff); padding-top: clamp(3rem, 6vw, 4.5rem); }
:root[data-theme="dark"] .footer { background: var(--surface); }
.footer .brand__name { color: #fff; }
:root[data-theme="dark"] .footer .brand__name { color: var(--ink); }
.footer__inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 2.5rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
:root[data-theme="dark"] .footer__inner { border-bottom-color: var(--border); }
.footer__brand p { margin-top: 1rem; color: rgba(255, 255, 255, 0.55); max-width: 32ch; }
:root[data-theme="dark"] .footer__brand p { color: var(--ink-soft); }
.footer__col { display: flex; flex-direction: column; gap: 0.85rem; }
.footer__col h4 { font: 700 0.85rem var(--body); color: rgba(255, 255, 255, 0.4); margin-bottom: 0.25rem; }
:root[data-theme="dark"] .footer__col h4 { color: var(--ink-soft); }
.footer__col a { color: rgba(255, 255, 255, 0.75); }
:root[data-theme="dark"] .footer__col a { color: var(--ink-soft); }
.footer__col a:hover { color: #fff; }
:root[data-theme="dark"] .footer__col a:hover { color: var(--ink); }
.footer__legal { padding-block: 1.5rem; font-size: 0.85rem; color: rgba(255, 255, 255, 0.4); }
:root[data-theme="dark"] .footer__legal { color: var(--ink-soft); }

/* Scroll reveal */
[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}
[data-reveal].is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .hero__aurora { animation: none; }
  [data-reveal] { opacity: 1; transform: none; transition: none; }
  .btn:hover, .theme-toggle:hover { transform: none; }
}

/* Responsive */
@media (max-width: 900px) {
  .nav-toggle { display: inline-flex; order: 3; }
  .nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 1.25rem;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: 1.5rem var(--gut) 2rem;
    display: none;
  }
  .nav[data-open="true"] { display: flex; }
  .top__actions { order: 2; margin-left: auto; }

  .hero__inner { flex-direction: column; text-align: center; }
  .hero__sub { margin-inline: auto; }
  .hero__ctas { justify-content: center; }

  .how__steps { grid-template-columns: 1fr 1fr; }
  .step::before { display: none; }

  .features__row { grid-template-columns: 1fr 1fr; }
  .feature::before { display: none; }

  .oss__inner { grid-template-columns: 1fr; }

  .plans { grid-template-columns: 1fr; }
  .plan--pro { transform: none; }

  .features, .pricing { padding: 5rem 1.5rem; }

  .footer__inner { grid-template-columns: 1fr; gap: 2rem; }
}

@media (max-width: 560px) {
  .how__steps { grid-template-columns: 1fr; }
  .features__row { grid-template-columns: 1fr; }
  .terminal__line { flex-wrap: wrap; }
  .features, .pricing { padding: 3.5rem 1.25rem; }
}