/* Oakmind — oakmind.co.uk · "the digital oak"
 * No external requests: system fonts only, all assets same-origin. */

:root {
  --bg: #070b08;
  --panel: #0c1510;
  --panel-2: #0a110d;
  --line: #1b2b20;
  --line-bright: #2c4936;
  --ink: #e8f0e8;
  --ink-dim: #93a698;
  --green: #59d98c;       /* THE green — luminous oak-leaf */
  --green-soft: #35b06b;
  --green-deep: #1f7a4d;
  --glow: rgba(89, 217, 140, 0.22);
  --mono: ui-monospace, "SF Mono", "Cascadia Code", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html { background: var(--bg); }
html, body { margin: 0; }

body {
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.7 ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-text-size-adjust: 100%;
  overflow-x: hidden;
}

a { color: var(--green); text-decoration-color: var(--green-deep); }
a:hover { text-decoration-color: var(--green); }

::selection { background: var(--green-deep); color: var(--ink); }

/* Faint circuit grid behind everything — the "technological" hum.
 * Fixed so content scrolls over it; fades out towards the bottom. */
.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(to right, rgba(89, 217, 140, 0.035) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(89, 217, 140, 0.035) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: linear-gradient(to bottom, #000 60%, transparent 100%);
  mask-image: linear-gradient(to bottom, #000 60%, transparent 100%);
}

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

.topbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px clamp(16px, 4vw, 40px);
  transition: background 0.35s ease, border-color 0.35s ease, backdrop-filter 0.35s ease;
  border-bottom: 1px solid transparent;
}

.topbar--solid {
  background: rgba(7, 11, 8, 0.82);
  border-bottom-color: var(--line);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.topbar__brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  text-decoration: none;
  font-weight: 650;
  font-size: 19px;
  letter-spacing: 0.02em;
}

.brandmark {
  width: 42px;
  height: 42px;
  color: var(--green);
  flex: none;
}

.topbar__status {
  font: 11px/1 var(--mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-dim);
  display: flex;
  align-items: center;
  gap: 8px;
}

.topbar__status i {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 8px var(--green);
  animation: pulse 2.4s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

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

.hero {
  position: relative;
  height: 100vh;
  height: 100svh; /* mobile URL-bar-proof */
  overflow: hidden;
  background: #05130e; /* matches the image's darkest corner while it loads */
}

.hero__img {
  position: absolute;
  inset: -4%;
  width: 108%;
  height: 108%;
  object-fit: cover;
  object-position: center 30%;
  will-change: transform;
}

.hero__motes {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

/* legibility only — the image is already dark */
.hero__scrim {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom,
    rgba(7, 11, 8, 0.42) 0%,
    rgba(7, 11, 8, 0) 30%,
    rgba(7, 11, 8, 0) 62%,
    rgba(7, 11, 8, 0.88) 100%);
}

.hero__copy {
  position: relative;
  z-index: 1;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  align-items: center;
  text-align: center;
  padding: 24px 24px clamp(64px, 14vh, 140px);
  pointer-events: none;
}

.hero__copy h1 {
  margin: 0;
  font-size: clamp(48px, 9vw, 96px);
  font-weight: 650;
  letter-spacing: 0.04em;
  line-height: 1.05;
  background: linear-gradient(to bottom, #f2f7f2 30%, #9fd9b4 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 2px 24px rgba(5, 19, 14, 0.85));
}

.hero__tag {
  margin: 14px 0 0;
  font-size: clamp(16px, 2.4vw, 20px);
  color: var(--ink);
  opacity: 0.94;
  text-shadow: 0 1px 8px rgba(5, 19, 14, 0.9), 0 2px 20px rgba(5, 19, 14, 0.6);
}

.hero__type {
  margin: 22px 0 0;
  font: 13px/1 var(--mono);
  letter-spacing: 0.06em;
  color: var(--green);
  text-shadow: 0 0 12px var(--glow);
  min-height: 13px;
}

.hero__prompt { color: var(--green-soft); opacity: 0.8; }

.hero__caret {
  display: inline-block;
  width: 8px; height: 14px;
  margin-left: 3px;
  vertical-align: text-bottom;
  background: var(--green);
  animation: blink 1.1s steps(1) infinite;
}

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

.hero__hint {
  position: absolute;
  left: 50%;
  bottom: 22px;
  transform: translateX(-50%);
  z-index: 1;
  font: 11px/1 var(--mono);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-dim);
}

.hero__hint::after {
  content: "";
  display: block;
  width: 1px; height: 26px;
  margin: 10px auto 0;
  background: linear-gradient(to bottom, var(--green), transparent);
  animation: drip 1.8s ease-in-out infinite;
}

@keyframes drip {
  0% { transform: scaleY(0); transform-origin: top; }
  55% { transform: scaleY(1); transform-origin: top; }
  100% { transform: scaleY(1) translateY(6px); opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .hero__hint::after, .hero__caret, .topbar__status i { animation: none; }
}

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

.section {
  position: relative;
  max-width: 1080px;
  margin: 0 auto;
  padding: clamp(88px, 14vh, 140px) 24px;
}

/* a short luminous stem grows into each section — the trunk continuing */
.section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  width: 1px;
  height: clamp(40px, 7vh, 64px);
  background: linear-gradient(to bottom, transparent, var(--green-deep));
}

.eyebrow {
  margin: 0 0 14px;
  font: 12px/1 var(--mono);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--green);
}

.eyebrow span { color: var(--green-deep); }

.section h2 {
  margin: 0 0 16px;
  font-size: clamp(28px, 4.6vw, 44px);
  font-weight: 650;
  letter-spacing: 0.01em;
  line-height: 1.15;
}

.lede {
  margin: 0;
  max-width: 640px;
  color: var(--ink-dim);
  font-size: clamp(16px, 2.2vw, 18px);
}

/* ---------------------------------------------------------- system map -- */

.sys {
  margin-top: 40px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: linear-gradient(to bottom, var(--panel), var(--panel-2));
  overflow: hidden;
}

.sys__row {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 4px 20px;
  padding: 18px 22px;
  font-family: var(--mono);
  font-size: 14px;
  border-top: 1px solid var(--line);
}

.sys__row:first-child { border-top: 0; }

.sys__k {
  color: var(--green);
  letter-spacing: 0.08em;
}

.sys__k::before { content: "◈ "; color: var(--green-deep); }

.sys__v { color: var(--ink); }

.sys__n {
  grid-column: 2;
  color: var(--ink-dim);
  font-size: 12.5px;
}

@media (min-width: 720px) {
  .sys__row { grid-template-columns: 110px 260px 1fr; }
  .sys__n { grid-column: auto; font-size: 13px; align-self: center; }
}

/* -------------------------------------------------------------- branches -- */

/* slow-turning growth rings behind the heading — tree rings read as radar */
.rings {
  position: absolute;
  top: -40px;
  right: -180px;
  width: 600px;
  height: 600px;
  pointer-events: none;
  opacity: 0.5;
}

.rings svg { width: 100%; height: 100%; animation: spin 90s linear infinite; }

.rings circle {
  fill: none;
  stroke: var(--green-deep);
  stroke-width: 1;
  stroke-dasharray: 12 6 2 6;
  opacity: 0.35;
}

.rings circle:nth-child(2) { stroke-dasharray: 2 9; animation: none; }
.rings circle:nth-child(3) { stroke-dasharray: 30 8 4 8; opacity: 0.22; }
.rings circle:nth-child(4) { stroke-dasharray: 3 14; opacity: 0.16; }

@keyframes spin { to { transform: rotate(360deg); } }

@media (prefers-reduced-motion: reduce) { .rings svg { animation: none; } }
@media (max-width: 900px) { .rings { right: -320px; opacity: 0.3; } }

.cards {
  list-style: none;
  margin: 44px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.card {
  position: relative;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: linear-gradient(to bottom, var(--panel), var(--panel-2));
  overflow: hidden;
  transition: transform 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease;
}

.card:hover {
  transform: translateY(-5px);
  border-color: var(--line-bright);
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.45), 0 0 0 1px var(--glow), 0 0 36px -6px var(--glow);
}

/* cursor spotlight — main.js feeds --mx/--my on pointer devices */
.card::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: radial-gradient(220px circle at var(--mx, 50%) var(--my, -20%),
              rgba(89, 217, 140, 0.10), transparent 70%);
  opacity: 0;
  transition: opacity 0.35s ease;
  pointer-events: none;
}

.card:hover::before { opacity: 1; }

.card__art {
  margin: 0;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

.card__art img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: saturate(0.92) brightness(0.94);
  transform: scale(1.02);
  transition: filter 0.45s ease, transform 0.45s ease;
}

.card:hover .card__art img {
  filter: saturate(1.05) brightness(1.06);
  transform: scale(1.06);
}

.card__body { padding: 20px 22px 24px; }

.card__meta {
  margin: 0 0 10px;
  font: 11.5px/1 var(--mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-dim);
}

.card__meta b { color: var(--green-deep); }

.card__status { color: var(--ink-dim); }
.card__status--bud { color: var(--green); text-shadow: 0 0 10px var(--glow); }

.card h3 { margin: 0 0 8px; font-size: 19px; font-weight: 650; }
.card__body > p:last-child { margin: 0; color: var(--ink-dim); font-size: 15px; }

/* ----------------------------------------------------------------- roots -- */

.term {
  margin-top: 40px;
  max-width: 620px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--panel-2);
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
}

.term__bar {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 12px 16px;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
}

.term__bar i {
  width: 11px; height: 11px;
  border-radius: 50%;
  background: var(--line-bright);
}

.term__bar i:first-child { background: var(--green-deep); }

.term__bar span {
  margin-left: 8px;
  font: 12px/1 var(--mono);
  color: var(--ink-dim);
  letter-spacing: 0.06em;
}

.term__body {
  padding: 22px 24px 26px;
  font-family: var(--mono);
  font-size: 14.5px;
}

.term__cmd {
  margin: 18px 0 4px;
  color: var(--ink-dim);
}

.term__cmd:first-child { margin-top: 0; }

.term__out { margin: 0; }

.term__out a {
  color: var(--green);
  text-decoration: none;
  text-shadow: 0 0 14px var(--glow);
}

.term__out a:hover { text-decoration: underline; }

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

footer {
  border-top: 1px solid var(--line);
  padding: 26px clamp(16px, 4vw, 40px);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  font: 12.5px/1.7 var(--mono);
  letter-spacing: 0.05em;
  color: var(--ink-dim);
}

footer p { margin: 0; }

.footer__links {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}

.footer__links span { color: var(--line-bright); }

.footer__links a {
  color: var(--green-soft);
  text-decoration: none;
}

.footer__links a:hover { color: var(--green); text-decoration: underline; }

@media (max-width: 640px) {
  footer { flex-direction: column; text-align: center; }
}

/* ----------------------------------------------------------- legal pages -- */
/* /privacy and /terms — same tokens, no JS anywhere on these pages. The
 * topbar gets .topbar--solid baked in since there is no hero behind it. */

.legal {
  max-width: 720px;
  margin: 0 auto;
  padding: 140px 24px 96px;
}

.legal h1 {
  margin: 0 0 10px;
  font-size: clamp(30px, 5vw, 42px);
  font-weight: 650;
  line-height: 1.15;
}

.legal .updated {
  margin: 0 0 44px;
  font: 13px/1.6 var(--mono);
  color: var(--ink-dim);
}

.legal h2 {
  font-size: 20px;
  font-weight: 650;
  margin: 44px 0 12px;
  padding-top: 26px;
  border-top: 1px solid var(--line);
}

.legal h2:first-of-type { border-top: 0; padding-top: 0; }

.legal h3 { font-size: 16px; font-weight: 650; margin: 24px 0 8px; }

.legal p, .legal li { color: var(--ink-dim); }
.legal p { margin: 0 0 14px; }
.legal ul { margin: 0 0 14px; padding-left: 20px; }
.legal li { margin: 0 0 7px; }
.legal strong { color: var(--ink); font-weight: 600; }

.legal .note {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 18px 20px;
  margin: 22px 0;
}

.legal .note p:last-child { margin-bottom: 0; }

/* ----------------------------------------------------------------- focus -- */

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