/* HockeyLedger — phase 0 landing
   Palette: ice sheet + ink, with the rink's own lines as the only accents.
   Type: Unbounded (display, wide) · IBM Plex Sans (body) · IBM Plex Mono (ledger figures).
   All three cover Latin Extended + Cyrillic, which the launch languages need. */

:root {
  --ice: #EEF3F6;
  --ice-2: #FFFFFF;
  --ink: #0B1F33;
  --ink-2: #4A5D70;
  --rule: #B9C4CE;
  --blue: #1447C2;
  --red: #C8102E;
  --display: 'Unbounded', 'IBM Plex Sans', system-ui, sans-serif;
  --body: 'IBM Plex Sans', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, 'SF Mono', Menlo, monospace;
  --gutter: clamp(16px, 4vw, 48px);
  --max: 1120px;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ice: #0B1F33;
    --ice-2: #10273F;
    --ink: #EEF3F6;
    --ink-2: #A9B8C6;
    --rule: #2A4058;
    --blue: #6A97FF;
    --red: #FF5A6A;
  }
}
:root[data-theme="dark"] {
  --ice: #0B1F33;
  --ice-2: #10273F;
  --ink: #EEF3F6;
  --ink-2: #A9B8C6;
  --rule: #2A4058;
  --blue: #6A97FF;
  --red: #FF5A6A;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--ice);
  color: var(--ink);
  font-family: var(--body);
  font-size: 17px;
  line-height: 1.5;
  overflow-x: hidden;
}
a { color: inherit; }
:focus-visible { outline: 3px solid var(--blue); outline-offset: 3px; }

/* Language rail: the ledger's column headers. Each language in its own name. */
.rail {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(max-content, 1fr);
  gap: 0;
  border-bottom: 1px solid var(--rule);
  overflow-x: auto;
  scrollbar-width: none;
  background: var(--ice-2);
}
.rail::-webkit-scrollbar { display: none; }
.rail__item {
  padding: 14px 18px;
  text-align: center;
  text-decoration: none;
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--ink-2);
  border-right: 1px solid var(--rule);
  border-bottom: 3px solid transparent;
  white-space: nowrap;
  transition: color 120ms ease, border-color 120ms ease;
}
.rail__item:last-child { border-right: 0; }
.rail__item:hover { color: var(--ink); }
.rail__item.is-active { color: var(--ink); border-bottom-color: var(--red); font-weight: 600; }

.top, main, .foot {
  width: min(var(--max), 100% - 2 * var(--gutter));
  margin-inline: auto;
}
.top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 28px 0 8px;
}
.wordmark {
  text-decoration: none;
  font-family: var(--display);
  font-weight: 800;
  font-size: 18px;
  letter-spacing: -0.01em;
}
.wordmark__ledger { color: var(--blue); }
.eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--red);
}

/* Hero */
.hero { padding: clamp(32px, 7vw, 88px) 0 clamp(28px, 5vw, 56px); }
.hero__h1 {
  margin: 0;
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(30px, 6.2vw, 76px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  max-width: 16ch;
  text-wrap: balance;
}
.hero__sub {
  margin: 24px 0 0;
  max-width: 58ch;
  font-size: clamp(17px, 1.5vw, 20px);
  color: var(--ink-2);
}

/* The rink divider: two blue lines, red center line. Used once. */
.rink {
  display: grid;
  gap: 10px;
  padding: 6px 0;
}
.rink span { display: block; height: 2px; background: var(--blue); }
.rink span:nth-child(2) { background: var(--red); height: 3px; }

/* Ledger */
.ledger { padding: clamp(28px, 5vw, 56px) 0; }
.ledger__title {
  margin: 0 0 12px;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-2);
}
.ledger__rows {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--rule);
  display: grid;
  grid-template-columns: 1.4fr 1fr auto;
}
.ledger__row {
  display: grid;
  grid-column: 1 / -1;
  grid-template-columns: subgrid;
  align-items: baseline;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--rule);
  opacity: 0;
  transform: translateY(6px);
  animation: row-in 420ms cubic-bezier(.2,.7,.2,1) forwards;
  animation-delay: calc(var(--i) * 70ms + 120ms);
}
.ledger__who { font-weight: 600; }
.ledger__what { color: var(--ink-2); font-size: 15px; }
.ledger__n {
  font-family: var(--mono);
  font-weight: 600;
  font-size: clamp(20px, 2.6vw, 30px);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
  text-align: right;
  white-space: nowrap;
}
@keyframes row-in { to { opacity: 1; transform: none; } }

/* Pillars */
.pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  padding: clamp(24px, 4vw, 48px) 0 clamp(40px, 6vw, 72px);
  border-top: 1px solid var(--rule);
}
.pillar__name {
  margin: 0 0 8px;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--blue);
}
.pillar__head {
  margin: 0 0 10px;
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(17px, 1.6vw, 21px);
  line-height: 1.2;
  letter-spacing: -0.01em;
}
.pillar__body { margin: 0; color: var(--ink-2); font-size: 16px; }

/* Join */
.join {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 40px;
  padding: clamp(32px, 6vw, 72px) 0;
  border-top: 3px solid var(--ink);
}
.join__title {
  margin: 0;
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(26px, 3.4vw, 40px);
  line-height: 1.05;
  letter-spacing: -0.02em;
}
.join__lead { margin: 14px 0 0; color: var(--ink-2); max-width: 32ch; }

.form { display: grid; gap: 20px; }
.field { margin: 0; padding: 0; border: 0; min-width: 0; }
.field__label {
  display: block;
  margin: 0 0 8px;
  padding: 0;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-2);
}
.field__input {
  width: 100%;
  padding: 14px 16px;
  font: inherit;
  color: var(--ink);
  background: var(--ice-2);
  border: 1px solid var(--rule);
  border-radius: 4px;
}
.field__input:focus { border-color: var(--blue); }
.field__input::placeholder { color: var(--ink-2); opacity: .8; }
select.field__input {
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--ink-2) 50%), linear-gradient(135deg, var(--ink-2) 50%, transparent 50%);
  background-position: calc(100% - 22px) 55%, calc(100% - 16px) 55%;
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
  padding-right: 44px;
}

.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { position: relative; }
.chip input { position: absolute; inset: 0; opacity: 0; margin: 0; cursor: pointer; }
.chip span {
  display: inline-block;
  padding: 10px 14px;
  font-size: 15px;
  font-weight: 500;
  border: 1px solid var(--rule);
  border-radius: 999px;
  background: var(--ice-2);
  transition: background 120ms ease, border-color 120ms ease, color 120ms ease;
}
.chip input:checked + span { background: var(--ink); color: var(--ice); border-color: var(--ink); }
.chip input:focus-visible + span { outline: 3px solid var(--blue); outline-offset: 2px; }

.button {
  justify-self: start;
  padding: 16px 28px;
  font: inherit;
  font-weight: 600;
  color: #fff;
  background: var(--red);
  border: 0;
  border-radius: 4px;
  cursor: pointer;
  transition: transform 120ms ease, filter 120ms ease;
}
.button:hover { filter: brightness(1.06); }
.button:active { transform: translateY(1px); }
.button[disabled] { opacity: .6; cursor: wait; }

.form__msg { margin: 0; font-weight: 500; }
.form__msg:empty { display: none; }
.form__msg.is-ok { color: var(--blue); }
.form__msg.is-err { color: var(--red); }
.form__privacy { margin: 0; font-size: 14px; color: var(--ink-2); }
.form.is-done .field, .form.is-done .button, .form.is-done .form__privacy { display: none; }
.form.is-done .form__msg { font-family: var(--display); font-weight: 700; font-size: 20px; }

/* Footer */
.foot {
  padding: 32px 0 48px;
  border-top: 1px solid var(--rule);
  color: var(--ink-2);
  font-size: 14px;
}
.foot p { margin: 0 0 8px; }
.foot__langs a { text-decoration: none; }
.foot__langs a:hover { text-decoration: underline; }

/* Responsive */
@media (max-width: 860px) {
  .pillars { grid-template-columns: 1fr; gap: 24px; }
  .join { grid-template-columns: 1fr; gap: 24px; }
}
@media (max-width: 560px) {
  body { font-size: 16px; }
  .rail__item { padding: 12px 14px; }
  .ledger__rows { grid-template-columns: 1fr auto; }
  .ledger__what { grid-column: 1 / -1; order: 3; font-size: 14px; margin-top: -6px; }
  .button { justify-self: stretch; }
}

@media (prefers-reduced-motion: reduce) {
  .ledger__row { animation: none; opacity: 1; transform: none; }
  * { transition: none !important; }
}