/* ============================================================
   plactl landing — design tokens
   Aesthetic: refined / utilitarian / infrastructure-native.
   Reference brands: Tailscale, Linear, Stripe, Vercel.
   Theme: dark, monochrome-dominant.
   Accents: teal (logo wings, primary) + sparing orange (logo body).
============================================================ */

:root {
  /* surface */
  --bg: #0a0e15;
  --bg-2: #0c1119;
  --surface: #11171f;
  --surface-2: #161d27;
  --surface-3: #1b232e;
  --border: #1c242f;
  --border-strong: #2a3441;
  --hairline: rgba(231, 236, 243, 0.06);

  /* text */
  --fg: #e7ecf3;
  --fg-muted: #94a0b1;
  --fg-dim: #64718a;
  --fg-faint: #4a5567;

  /* accent — derived from logo */
  --teal: #2cc4b3;
  --teal-700: #1d9d8e;
  --teal-300: #5fdfd0;
  --orange: #f5a04e;
  --orange-700: #c97a2a;

  /* state */
  --primary-on: #04221e;

  /* type */
  --sans:
    -apple-system, BlinkMacSystemFont, "Segoe UI Variable Display",
    "Segoe UI", Roboto, "Helvetica Neue", "Helvetica", "Arial",
    sans-serif;
  --mono:
    "JetBrains Mono", "Fira Code", "SF Mono", SFMono-Regular,
    ui-monospace, "Menlo", "Monaco", "Consolas", "Liberation Mono",
    monospace;

  /* layout */
  --container: 1120px;
  --container-narrow: 880px;
  --radius: 8px;
  --radius-lg: 12px;
  --radius-xl: 18px;

  /* motion */
  --ease-out: cubic-bezier(0.2, 0.7, 0.2, 1);
  --ease-spring: cubic-bezier(0.25, 1.2, 0.5, 1);
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  background: var(--bg);
  color: var(--fg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-feature-settings:
    "ss01" on,
    "cv11" on;
  font-variant-numeric: tabular-nums;
  min-height: 100vh;
  overflow-x: hidden;
}

/* a single very subtle wash above the hero — not a gradient mesh,
   just enough to seat the brand color in the surface. */
body::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: min(1400px, 100%);
  height: 720px;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(
      ellipse 60% 100% at 50% 0%,
      rgba(44, 196, 179, 0.06),
      rgba(44, 196, 179, 0) 70%
    );
}

main {
  position: relative;
  z-index: 1;
}

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

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

button,
input,
select,
textarea {
  font: inherit;
}

::selection {
  background: var(--teal);
  color: var(--primary-on);
}

/* ============================================================
   utilities
============================================================ */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 3vw, 2rem);
}

.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  top: -40px;
  left: 1rem;
  background: var(--teal);
  color: var(--primary-on);
  padding: 0.5rem 0.75rem;
  border-radius: 6px;
  z-index: 100;
  font-weight: 500;
  font-size: 0.875rem;
  transition: top 0.15s var(--ease-out);
}
.skip-link:focus {
  top: 0.75rem;
}

/* ============================================================
   focus
============================================================ */
:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 2px;
  border-radius: 4px;
}
a:focus-visible {
  outline-offset: 4px;
}

/* ============================================================
   header
============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 14, 21, 0.85);
  border-bottom: 1px solid var(--border);
  backdrop-filter: saturate(140%) blur(8px);
  -webkit-backdrop-filter: saturate(140%) blur(8px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--fg);
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  -webkit-tap-highlight-color: transparent;
}

.brand-glyph {
  width: 8px;
  height: 8px;
  background: var(--teal);
  transform: rotate(45deg);
  display: inline-block;
  border-radius: 1.5px;
  box-shadow: 0 0 0 1px var(--teal-700);
}

.brand-name {
  font-weight: 600;
  letter-spacing: -0.015em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  height: 34px;
  padding: 0 0.875rem;
  border-radius: 6px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--fg-muted);
  transition:
    color 0.15s var(--ease-out),
    background 0.15s var(--ease-out);
}
.nav-link:hover {
  color: var(--fg);
  background: var(--surface);
}

.nav-cta {
  background: transparent;
  border: 1px solid var(--border-strong);
  color: var(--fg);
  margin-left: 0.25rem;
}
.nav-cta:hover {
  background: var(--surface-2);
  border-color: var(--teal-700);
  color: var(--fg);
}

@media (max-width: 540px) {
  .nav-link:not(.nav-cta) {
    display: none;
  }
}

/* ============================================================
   typography utilities
============================================================ */
.display {
  font-family: var(--sans);
  font-weight: 600;
  letter-spacing: -0.035em;
  line-height: 1.02;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  margin: 0 0 1.5rem;
  padding: 0.4rem 0.75rem 0.4rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--fg-muted);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0;
  width: fit-content;
}

.eyebrow-dot {
  position: relative;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--teal);
  box-shadow: 0 0 0 3px rgba(44, 196, 179, 0.18);
  flex-shrink: 0;
}
.eyebrow-dot::after {
  content: "";
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 1px solid var(--teal);
  opacity: 0;
  animation: eyebrowPulse 2.6s var(--ease-out) infinite;
}
@keyframes eyebrowPulse {
  0% {
    transform: scale(0.5);
    opacity: 0.65;
  }
  80%,
  100% {
    transform: scale(2.6);
    opacity: 0;
  }
}

code {
  font-family: var(--mono);
  font-size: 0.92em;
  padding: 0.1rem 0.4rem;
  border-radius: 4px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--teal-300);
  font-feature-settings: "calt" 0;
}

strong {
  font-weight: 600;
  color: var(--fg);
}

/* ============================================================
   hero
============================================================ */
.hero {
  position: relative;
  padding-top: clamp(3rem, 7vw, 6rem);
  padding-bottom: clamp(3.5rem, 7vw, 6rem);
}

.hero-inner {
  text-align: center;
  max-width: 880px;
  margin-inline: auto;
}

.hero-stagger {
  opacity: 0;
  transform: translateY(10px);
  animation: heroIn 0.7s var(--ease-out) forwards;
  animation-delay: calc(0.08s + var(--stagger, 0) * 0.1s);
}
@keyframes heroIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-title {
  margin: 0 auto 1.25rem;
  font-size: clamp(2.5rem, 7.5vw, 5.25rem);
  letter-spacing: -0.045em;
  line-height: 0.98;
  max-width: 16ch;
}

.lede {
  margin: 0 auto 2.25rem;
  max-width: 620px;
  font-size: clamp(1.0625rem, 1.4vw, 1.1875rem);
  line-height: 1.55;
  color: var(--fg-muted);
}
.lede strong {
  color: var(--fg);
  font-weight: 600;
}

.cta-row {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.625rem;
}
.cta-row--center {
  justify-content: center;
}

/* buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  height: 44px;
  padding: 0 1.1rem;
  border-radius: 8px;
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: -0.005em;
  cursor: pointer;
  border: 1px solid transparent;
  transition:
    background 0.18s var(--ease-out),
    border-color 0.18s var(--ease-out),
    color 0.18s var(--ease-out),
    transform 0.18s var(--ease-out),
    box-shadow 0.18s var(--ease-out);
  -webkit-tap-highlight-color: transparent;
  user-select: none;
}

.btn-primary {
  background: var(--teal);
  color: var(--primary-on);
  border-color: var(--teal);
  box-shadow:
    0 1px 0 0 rgba(255, 255, 255, 0.2) inset,
    0 1px 2px rgba(0, 0, 0, 0.4),
    0 0 0 0 rgba(44, 196, 179, 0);
}
.btn-primary:hover {
  background: var(--teal-300);
  border-color: var(--teal-300);
  box-shadow:
    0 1px 0 0 rgba(255, 255, 255, 0.25) inset,
    0 4px 14px rgba(44, 196, 179, 0.28),
    0 0 0 4px rgba(44, 196, 179, 0.08);
}
.btn-primary:active {
  transform: translateY(0.5px);
}

.btn-ghost {
  background: transparent;
  color: var(--fg);
  border-color: var(--border-strong);
}
.btn-ghost:hover {
  background: var(--surface);
  border-color: var(--fg-faint);
}

.btn-arrow {
  width: 14px;
  height: 14px;
  transition: transform 0.2s var(--ease-out);
}
.btn:hover .btn-arrow {
  transform: translateX(3px);
}

.btn-icon {
  width: 15px;
  height: 15px;
  flex-shrink: 0;
}

/* ============================================================
   terminal
============================================================ */
.hero-terminal-wrap {
  margin-top: clamp(3rem, 6vw, 4.5rem);
}

.terminal {
  position: relative;
  margin: 0 auto;
  max-width: 760px;
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.04) inset,
    0 30px 80px -30px rgba(0, 0, 0, 0.6),
    0 12px 32px -12px rgba(0, 0, 0, 0.5);
}

/* very subtle teal halo behind the terminal — single layer, low alpha */
.terminal::before {
  content: "";
  position: absolute;
  inset: -40px;
  background: radial-gradient(
    ellipse 60% 50% at 50% 50%,
    rgba(44, 196, 179, 0.08),
    rgba(44, 196, 179, 0) 70%
  );
  z-index: -1;
  pointer-events: none;
}

.terminal-chrome {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  height: 38px;
  padding: 0 0.875rem;
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
  font-size: 0.75rem;
  color: var(--fg-dim);
  font-family: var(--mono);
}

.dots {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  justify-self: start;
}
.dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--surface-3);
  display: inline-block;
}
.dot-r {
  background: #ff5f57;
}
.dot-y {
  background: #f7bf3a;
}
.dot-g {
  background: #28c93e;
}

.terminal-title {
  justify-self: center;
  letter-spacing: 0;
  color: var(--fg-muted);
}

.terminal-meta {
  justify-self: end;
  color: var(--fg-faint);
  font-size: 0.7rem;
  letter-spacing: 0;
}

.terminal-body {
  font-family: var(--mono);
  font-size: 13.5px;
  line-height: 1.7;
  padding: 1.25rem 1.5rem 1.5rem;
  background: var(--surface);
  color: var(--fg);
  /* white-space: pre is scoped to .row so source indentation between
     rows doesn't render as blank lines */
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--surface-3) transparent;
}

.terminal-body .row {
  display: block;
  min-height: 1.7em;
  white-space: pre;
}

.terminal-body .line {
  display: inline-block;
  vertical-align: top;
  white-space: pre;
}

.terminal-body .line.typed {
  overflow: hidden;
  width: 0;
  animation: typeIn calc(var(--char-count) * 0.04s)
    steps(var(--char-count)) forwards;
  animation-delay: var(--delay, 0s);
}
@keyframes typeIn {
  to {
    width: calc(var(--char-count) * 1ch);
  }
}

.terminal-body .line.appear {
  opacity: 0;
  transform: translateY(2px);
  animation: lineIn 0.32s var(--ease-out) forwards;
  animation-delay: var(--delay, 0s);
}
@keyframes lineIn {
  to {
    opacity: 1;
    transform: none;
  }
}

/* terminal token colors */
.t-prompt {
  color: var(--fg-faint);
}
.t-cmd {
  color: var(--teal);
  font-weight: 600;
}
.t-ok {
  color: var(--teal);
  font-weight: 600;
}
.t-dim {
  color: var(--fg-dim);
}
.t-svc {
  color: var(--teal-300);
}
.t-arrow {
  color: var(--fg-faint);
}
.t-port {
  color: var(--fg-muted);
}
.t-key {
  color: var(--orange);
  font-weight: 500;
}
.t-eq {
  color: var(--fg-faint);
}
.t-bullet {
  color: var(--fg-faint);
  letter-spacing: 0.05em;
}

.terminal-cursor {
  display: inline-block;
  width: 0.55ch;
  height: 1.05em;
  vertical-align: text-bottom;
  background: var(--teal);
  opacity: 0;
  animation: cursorBlink 1.05s steps(2, jump-none) infinite;
  animation-delay: var(--delay, 0s);
}
@keyframes cursorBlink {
  0%,
  49% {
    opacity: 1;
  }
  50%,
  100% {
    opacity: 0;
  }
}

/* ============================================================
   sections (shared)
============================================================ */
.section {
  position: relative;
  padding-block: clamp(4rem, 8vw, 7rem);
  border-top: 1px solid var(--border);
}

.section-head {
  margin-bottom: clamp(2rem, 4vw, 3rem);
  max-width: 720px;
}

.section-eyebrow {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--teal);
  margin: 0 0 1rem;
  font-weight: 500;
}

.section-title {
  margin: 0;
  font-size: clamp(1.875rem, 4vw, 2.875rem);
  letter-spacing: -0.035em;
  line-height: 1.05;
  color: var(--fg);
}

.section-title-soft {
  color: var(--fg-dim);
  display: inline;
}

/* ============================================================
   value props
============================================================ */
.grid {
  display: grid;
  gap: 2rem;
}
.grid-2 {
  grid-template-columns: 1fr 1fr;
}
@media (max-width: 720px) {
  .grid-2 {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
}

.prop {
  position: relative;
  padding-top: 1.75rem;
  border-top: 1px solid var(--border);
}

.prop-marker {
  position: absolute;
  top: -1px;
  left: 0;
  width: 64px;
  height: 1px;
  background: var(--teal);
}
.prop-marker--dev {
  background: var(--orange);
}

.prop-label {
  display: inline-flex;
  align-items: center;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin: 0 0 1.5rem;
  font-weight: 500;
}

.prop-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 1.25rem;
}

.prop-list li {
  position: relative;
  padding-left: 1.5rem;
  font-size: 1rem;
  line-height: 1.65;
  color: var(--fg-muted);
}

.prop-list li::before {
  content: "";
  position: absolute;
  top: 0.7em;
  left: 0;
  width: 0.875rem;
  height: 1px;
  background: var(--teal-700);
}
.prop:nth-child(2) .prop-list li::before {
  background: var(--orange-700);
}

.prop-list li strong {
  color: var(--fg);
  font-weight: 600;
}

.prop-list code {
  font-size: 0.88em;
}

/* ============================================================
   how it works
============================================================ */
.steps {
  list-style: none;
  padding: 0;
  margin: 0;
  border-top: 1px solid var(--border);
}

.step {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 1.5rem;
  padding: 1.625rem 0;
  border-bottom: 1px solid var(--border);
  align-items: baseline;
  transition: background 0.2s var(--ease-out);
}

.step:hover {
  background: linear-gradient(
    to right,
    rgba(44, 196, 179, 0.025),
    transparent 60%
  );
}

.step-num {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  color: var(--teal);
  text-transform: uppercase;
  font-weight: 500;
  font-feature-settings: "tnum" on;
}

.step-body {
  margin: 0;
  font-size: 1.0625rem;
  line-height: 1.55;
  color: var(--fg);
  max-width: 60ch;
}

.step-body code {
  font-size: 0.95em;
}

.how-closer {
  margin: 2.5rem 0 0;
  font-size: 1rem;
  color: var(--fg-muted);
  font-style: normal;
}

@media (max-width: 540px) {
  .step {
    grid-template-columns: 1fr;
    gap: 0.5rem;
    padding: 1.25rem 0;
  }
}

/* ============================================================
   closing
============================================================ */
.section--closing {
  padding-block: clamp(5rem, 9vw, 8rem);
  text-align: center;
}

.closing-inner {
  max-width: 760px;
  margin-inline: auto;
}

.closing-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin: 0 0 1.25rem;
}

.closing-arrow {
  color: var(--teal);
  font-size: 1.05em;
  line-height: 1;
}

.closing-title {
  margin: 0 0 2rem;
  font-size: clamp(2rem, 5vw, 3.5rem);
  letter-spacing: -0.04em;
  line-height: 1.05;
}
.closing-em {
  color: var(--fg-dim);
  display: inline;
}

/* ============================================================
   footer
============================================================ */
.site-footer {
  border-top: 1px solid var(--border);
  padding-block: clamp(2.5rem, 5vw, 4rem);
  position: relative;
  z-index: 1;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2.5rem 3rem;
  align-items: center;
}

.footer-brand-block {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.footer-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #ffffff;
  padding: 0.625rem 1rem;
  border-radius: 10px;
  width: 130px;
  flex-shrink: 0;
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.06),
    0 8px 24px -12px rgba(0, 0, 0, 0.5);
}
.footer-mark img {
  width: 100%;
  height: auto;
}

.footer-pron {
  margin: 0;
  font-size: 0.875rem;
  color: var(--fg-muted);
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.footer-name {
  color: var(--fg);
  font-weight: 600;
  letter-spacing: -0.015em;
}
.footer-ipa {
  font-family: var(--mono);
  color: var(--fg-dim);
  font-size: 0.8125rem;
}
.footer-pron-text {
  color: var(--fg-muted);
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  font-size: 0.875rem;
}
.footer-links a {
  color: var(--fg-muted);
  transition: color 0.15s var(--ease-out);
}
.footer-links a:hover {
  color: var(--fg);
}

@media (max-width: 720px) {
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 1.75rem;
  }
  .footer-links {
    gap: 1.25rem;
    flex-wrap: wrap;
  }
}

/* ============================================================
   responsive nudges
============================================================ */
@media (max-width: 540px) {
  .eyebrow {
    font-size: 0.78125rem;
    padding-block: 0.35rem;
  }
  .terminal {
    border-radius: 10px;
  }
  .terminal-body {
    font-size: 12.5px;
    padding: 1rem 1.125rem 1.25rem;
  }
  .terminal-meta {
    display: none;
  }
  .terminal-chrome {
    grid-template-columns: 1fr auto;
  }
  .nav-cta {
    padding: 0 0.75rem;
    font-size: 0.8125rem;
  }
}

/* ============================================================
   reduced motion
============================================================ */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-delay: 0s !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .hero-stagger {
    opacity: 1;
    transform: none;
  }
  .terminal-cursor {
    opacity: 1;
  }
  .terminal-body .line.typed {
    width: calc(var(--char-count) * 1ch);
  }
  .terminal-body .line.appear {
    opacity: 1;
    transform: none;
  }
  .eyebrow-dot::after {
    display: none;
  }
}

/* ============================================================
   high contrast / forced colors
============================================================ */
@media (forced-colors: active) {
  .btn-primary {
    border: 1px solid CanvasText;
  }
  .terminal {
    border: 1px solid CanvasText;
  }
}