/* Leo — multiplayer stadium platform */

:root {
  --ink: #101612;
  --ink-soft: #2a3530;
  --mute: #5e6d65;
  --line: rgba(16, 22, 18, 0.12);
  --paper: #eef2ef;
  --paper-2: #e4ebe6;
  --field: #0f3d2c;
  --field-deep: #07261c;
  --field-mid: #1a5c42;
  --signal: #d6ff3f;
  --signal-ink: #14200a;
  --warm: #ff7a45;
  --gold: #f0c84a;
  --white: #f7faf7;
  --glass: rgba(247, 250, 247, 0.08);
  --radius: 4px;
  --font-display: "Syne", "Avenir Next", "Segoe UI", sans-serif;
  --font-body: "Figtree", "Avenir Next", "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, Menlo, monospace;
  --max: 1120px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

button,
input,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

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

/* ---------- shell ---------- */

.shell {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 0;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--ease);
}

.topbar.is-scrolled {
  border-bottom-color: var(--line);
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 0.35rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.35rem;
  letter-spacing: -0.04em;
  text-decoration: none;
}

.brand span {
  color: var(--field-mid);
  font-weight: 600;
  font-size: 0.72em;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  font-size: 0.95rem;
  color: var(--ink-soft);
}

.nav a {
  text-decoration: none;
}

.nav a:hover {
  color: var(--ink);
}

.nav .live {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  color: var(--mute);
}

.nav .live i {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: #9aa59e;
}

.nav .live.on i {
  background: #2f9e5d;
  box-shadow: 0 0 0 4px rgba(47, 158, 93, 0.18);
  animation: pulse 1.8s ease-in-out infinite;
}

@keyframes pulse {
  0%,
  100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.15);
  }
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  min-height: 2.75rem;
  padding: 0.7rem 1.2rem;
  border: 0;
  border-radius: var(--radius);
  background: var(--ink);
  color: var(--white);
  font-weight: 650;
  letter-spacing: -0.01em;
  text-decoration: none;
  transition: transform 0.25s var(--ease), background 0.2s ease, color 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

.btn-signal {
  background: var(--signal);
  color: var(--signal-ink);
}

.btn-ghost {
  background: transparent;
  color: var(--white);
  border: 1px solid rgba(247, 250, 247, 0.35);
}

.btn-soft {
  background: rgba(16, 22, 18, 0.06);
  color: var(--ink);
}

.btn:disabled {
  opacity: 0.4;
  cursor: default;
  transform: none;
}

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

.hero {
  position: relative;
  min-height: min(100vh, 920px);
  margin: 0 calc(50% - 50vw);
  width: 100vw;
  overflow: hidden;
  color: var(--white);
  background:
    radial-gradient(ellipse 80% 55% at 70% 20%, rgba(214, 255, 63, 0.16), transparent 55%),
    radial-gradient(ellipse 60% 50% at 15% 85%, rgba(255, 122, 69, 0.12), transparent 50%),
    linear-gradient(165deg, var(--field-deep) 0%, var(--field) 48%, #0a2f22 100%);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(247, 250, 247, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(247, 250, 247, 0.04) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, #000 20%, transparent 75%);
  pointer-events: none;
  animation: gridDrift 28s linear infinite;
}

@keyframes gridDrift {
  from {
    transform: translateY(0);
  }
  to {
    transform: translateY(72px);
  }
}

.hero-beams {
  position: absolute;
  inset: -20% -10% auto;
  height: 70%;
  background:
    conic-gradient(from 210deg at 50% 0%, transparent 0 38%, rgba(214, 255, 63, 0.08) 42%, transparent 48%),
    conic-gradient(from 150deg at 50% 0%, transparent 0 40%, rgba(247, 250, 247, 0.07) 45%, transparent 52%);
  filter: blur(2px);
  pointer-events: none;
  animation: beamSweep 10s ease-in-out infinite alternate;
}

@keyframes beamSweep {
  from {
    opacity: 0.55;
    transform: translateX(-2%) scale(1);
  }
  to {
    opacity: 1;
    transform: translateX(2%) scale(1.04);
  }
}

.hero-field {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 42%;
  background:
    radial-gradient(ellipse 90% 80% at 50% 100%, rgba(26, 92, 66, 0.95), transparent 70%),
    linear-gradient(180deg, transparent, rgba(7, 38, 28, 0.85));
  pointer-events: none;
}

.hero-field::after {
  content: "";
  position: absolute;
  left: 8%;
  right: 8%;
  bottom: 18%;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(214, 255, 63, 0.55), transparent);
  box-shadow: 0 0 40px rgba(214, 255, 63, 0.35);
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-height: min(100vh, 920px);
  padding: 7rem 0 4.5rem;
}

.hero-brand {
  margin: 0 0 1.1rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(4.8rem, 16vw, 9.5rem);
  line-height: 0.85;
  letter-spacing: -0.06em;
  text-transform: uppercase;
  opacity: 0;
  transform: translateY(28px);
  animation: riseIn 0.9s var(--ease) 0.1s forwards;
}

.hero h1 {
  margin: 0 0 0.85rem;
  max-width: 14ch;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.75rem, 4.2vw, 2.75rem);
  line-height: 1.05;
  letter-spacing: -0.035em;
  opacity: 0;
  transform: translateY(22px);
  animation: riseIn 0.9s var(--ease) 0.25s forwards;
}

.hero .lede {
  margin: 0 0 1.75rem;
  max-width: 34ch;
  color: rgba(247, 250, 247, 0.78);
  font-size: 1.08rem;
  opacity: 0;
  transform: translateY(18px);
  animation: riseIn 0.9s var(--ease) 0.4s forwards;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  opacity: 0;
  transform: translateY(16px);
  animation: riseIn 0.9s var(--ease) 0.55s forwards;
}

@keyframes riseIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

.section {
  padding: 5.5rem 0;
}

.section-head {
  max-width: 36rem;
  margin-bottom: 2.5rem;
}

.section-head h2 {
  margin: 0 0 0.6rem;
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 750;
  letter-spacing: -0.035em;
  line-height: 1.05;
}

.section-head p {
  margin: 0;
  color: var(--mute);
  font-size: 1.05rem;
}

.games-list {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.game-row {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1.6fr) auto;
  gap: 1rem 1.5rem;
  align-items: center;
  padding: 1.35rem 0;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
  transition: background 0.25s var(--ease);
}

.game-row:hover {
  background: color-mix(in srgb, var(--signal) 10%, transparent);
}

.game-row h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.35rem;
  letter-spacing: -0.03em;
}

.game-row p {
  margin: 0;
  color: var(--mute);
}

.game-row .tag {
  font-size: 0.78rem;
  font-weight: 650;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--field-mid);
}

.game-row .tag.soon {
  color: var(--warm);
}

.how {
  background:
    linear-gradient(180deg, var(--paper-2), var(--paper));
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 2rem 1.5rem;
  counter-reset: step;
}

.step {
  position: relative;
  padding-top: 2.5rem;
}

.step::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  position: absolute;
  top: 0;
  left: 0;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--field-mid);
}

.step h3 {
  margin: 0 0 0.45rem;
  font-family: var(--font-display);
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

.step p {
  margin: 0;
  color: var(--mute);
}

.protocol {
  background: var(--ink);
  color: var(--white);
}

.protocol .section-head p {
  color: rgba(247, 250, 247, 0.65);
}

.code-panel {
  margin: 0;
  padding: 1.4rem 1.35rem;
  overflow-x: auto;
  border: 1px solid rgba(247, 250, 247, 0.12);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(214, 255, 63, 0.06), transparent 40%),
    #0b1210;
  font-family: var(--font-mono);
  font-size: 0.86rem;
  line-height: 1.65;
  color: #d7e5dc;
}

.code-panel .k {
  color: var(--signal);
}

.code-panel .s {
  color: #9ad4ff;
}

.code-panel .c {
  color: #7f8f86;
}

.cta-band {
  position: relative;
  overflow: hidden;
  padding: 4.5rem 0;
  background:
    radial-gradient(ellipse 50% 80% at 80% 50%, rgba(214, 255, 63, 0.18), transparent 60%),
    var(--field);
  color: var(--white);
}

.cta-band h2 {
  margin: 0 0 0.7rem;
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 4vw, 2.8rem);
  letter-spacing: -0.035em;
}

.cta-band p {
  margin: 0 0 1.4rem;
  max-width: 36ch;
  color: rgba(247, 250, 247, 0.75);
}

.site-footer {
  padding: 2rem 0 2.5rem;
  border-top: 1px solid var(--line);
  color: var(--mute);
  font-size: 0.92rem;
}

.site-footer .shell {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem 1.5rem;
}

.site-footer a {
  color: var(--ink-soft);
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--ink);
}

/* ---------- arena page ---------- */

.page-arena {
  background:
    radial-gradient(ellipse 70% 40% at 50% -10%, rgba(26, 92, 66, 0.12), transparent 60%),
    var(--paper);
  min-height: 100vh;
}

.arena-hero {
  padding: 2.5rem 0 1.25rem;
}

.arena-hero h1 {
  margin: 0 0 0.4rem;
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  letter-spacing: -0.045em;
  line-height: 0.95;
}

.arena-hero p {
  margin: 0;
  color: var(--mute);
  max-width: 42ch;
}

.panel {
  margin-bottom: 1rem;
  padding: 1.1rem 1.15rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--white) 70%, transparent);
}

.panel-title {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--mute);
}

.row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  align-items: center;
}

.field {
  flex: 1;
  min-width: 0;
  min-height: 2.75rem;
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  color: var(--ink);
}

.field:focus {
  outline: 2px solid color-mix(in srgb, var(--signal) 70%, var(--ink));
  outline-offset: 1px;
}

.status-line {
  margin: 0.7rem 0 0;
  font-size: 0.92rem;
  color: var(--mute);
}

.status-line b {
  color: var(--ink);
}

.wallet {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 0.55rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.wallet span {
  color: var(--ink-soft);
}

.table {
  display: none;
  margin-bottom: 1rem;
  padding: 1.2rem;
  border-radius: calc(var(--radius) + 4px);
  color: var(--white);
  background:
    radial-gradient(ellipse 80% 60% at 70% 0%, rgba(214, 255, 63, 0.12), transparent 55%),
    linear-gradient(160deg, var(--field-mid), var(--field-deep));
  box-shadow: inset 0 0 0 1px rgba(247, 250, 247, 0.08);
}

.table.show {
  display: block;
  animation: tableIn 0.45s var(--ease);
}

@keyframes tableIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.table-top {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem 1rem;
  margin-bottom: 0.85rem;
}

.table h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  opacity: 0.8;
}

.code {
  font-family: var(--font-mono);
  font-size: 1.55rem;
  letter-spacing: 0.18em;
}

.phase {
  margin-bottom: 0.9rem;
  font-size: 0.92rem;
  opacity: 0.82;
}

.seat {
  margin: 0.55rem 0;
  padding: 0.7rem 0.8rem;
  border-radius: var(--radius);
  background: rgba(0, 0, 0, 0.16);
  transition: background 0.2s ease, outline-color 0.2s ease;
}

.seat.turn {
  background: rgba(214, 255, 63, 0.14);
  outline: 2px solid var(--signal);
}

.seat.out {
  opacity: 0.4;
}

.seat .name {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.25rem;
  font-size: 0.9rem;
  opacity: 0.9;
}

.seat .name.you::after {
  content: "you";
  opacity: 0.55;
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.dice {
  font-size: 2rem;
  line-height: 1;
  letter-spacing: 0.12em;
}

.dice.hidden {
  opacity: 0.45;
}

.bidbox {
  margin: 0.9rem 0 0.4rem;
  padding: 0.85rem;
  border-radius: var(--radius);
  background: rgba(0, 0, 0, 0.22);
}

.bidbox .current {
  font-size: 0.98rem;
}

.bidbox .current b {
  font-size: 1.35rem;
}

.timer {
  height: 4px;
  margin-top: 0.65rem;
  overflow: hidden;
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.18);
}

.timer i {
  display: block;
  width: 100%;
  height: 100%;
  background: var(--signal);
  transition: width 0.25s linear;
}

.controls {
  margin-top: 0.9rem;
}

.controls .row {
  margin-top: 0.55rem;
}

.faces {
  display: flex;
  gap: 0.25rem;
  flex-wrap: wrap;
}

.faces button,
.count button {
  min-height: 2.4rem;
  padding: 0.25rem 0.55rem;
  border: 0;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
}

.faces button {
  font-size: 1.5rem;
  line-height: 1;
}

.faces button.sel {
  background: var(--signal);
  color: var(--signal-ink);
}

.count {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.count b {
  min-width: 2rem;
  text-align: center;
  font-size: 1.35rem;
}

.table .btn-primary {
  background: var(--signal);
  color: var(--signal-ink);
}

.table .btn-danger {
  background: var(--warm);
  color: #fff;
}

.table .btn-ghost {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.45);
}

.result {
  margin-top: 0.85rem;
  padding: 0.85rem;
  border-radius: var(--radius);
  background: rgba(0, 0, 0, 0.28);
  font-size: 0.95rem;
}

.result b {
  color: var(--gold);
}

.log {
  max-height: 180px;
  overflow: auto;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  line-height: 1.55;
  color: var(--mute);
  white-space: pre-wrap;
}

.log .err {
  color: var(--warm);
}

/* ---------- docs ---------- */

.docs-body {
  padding: 2.5rem 0 4rem;
}

.docs-body h1 {
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 3.2rem);
  letter-spacing: -0.04em;
}

.docs-body > .lede {
  margin: 0 0 2.5rem;
  color: var(--mute);
  max-width: 48ch;
}

.docs-body h2 {
  margin: 2.4rem 0 0.7rem;
  font-family: var(--font-display);
  font-size: 1.35rem;
  letter-spacing: -0.02em;
}

.docs-body p,
.docs-body li {
  color: var(--ink-soft);
}

.docs-body code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  padding: 0.1em 0.35em;
  border-radius: 3px;
  background: rgba(16, 22, 18, 0.06);
}

.docs-body pre {
  margin: 0.9rem 0 1.2rem;
  padding: 1rem 1.1rem;
  overflow-x: auto;
  border-radius: var(--radius);
  background: #0b1210;
  color: #d7e5dc;
  font-family: var(--font-mono);
  font-size: 0.84rem;
  line-height: 1.6;
}

.mono {
  font-family: var(--font-mono);
  font-size: 0.85em;
}

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

@media (max-width: 820px) {
  .steps {
    grid-template-columns: 1fr;
  }

  .game-row {
    grid-template-columns: 1fr;
    gap: 0.35rem;
  }

  .nav .hide-sm {
    display: none;
  }
}

@media (max-width: 560px) {
  .shell {
    width: min(100% - 1.25rem, var(--max));
  }

  .hero-inner {
    padding-top: 5.5rem;
    padding-bottom: 3.5rem;
  }

  .nav {
    gap: 0.75rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}