:root {
  color-scheme: dark;
  --bg: #101116;
  --panel: rgba(24, 27, 35, 0.82);
  --panel-solid: #181b23;
  --text: #f2efe6;
  --muted: #b8b3a8;
  --line: rgba(242, 239, 230, 0.14);
  --gold: #d8b15f;
  --red: #b94d48;
  --green: #6da88a;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.5;
}

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

#starfield {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  background: #101116;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(18px, 5vw, 64px);
  border-bottom: 1px solid var(--line);
  background: rgba(16, 17, 22, 0.82);
  backdrop-filter: blur(14px);
}

.brand {
  color: var(--gold);
  font-weight: 700;
}

nav {
  display: flex;
  gap: 18px;
  color: var(--muted);
  font-size: 0.95rem;
}

nav a:hover,
nav a:focus-visible {
  color: var(--text);
}

.hero {
  display: grid;
  align-items: center;
  min-height: 76vh;
  padding: clamp(64px, 10vw, 120px) clamp(18px, 5vw, 64px);
}

.hero-content {
  max-width: 760px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--green);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: break-word;
}

h1 {
  max-width: 12ch;
  margin: 0;
  font-size: clamp(3.1rem, 8vw, 6.5rem);
  line-height: 0.95;
  letter-spacing: 0;
}

h2 {
  margin: 0;
  font-size: clamp(1.8rem, 4vw, 3rem);
  line-height: 1.05;
  letter-spacing: 0;
}

h3 {
  margin: 0 0 12px;
  color: var(--gold);
  font-size: 1.15rem;
}

.hero-copy {
  max-width: 620px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.22rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 18px;
  border: 1px solid var(--line);
  border-radius: 6px;
  font-weight: 700;
}

.button.primary {
  border-color: var(--gold);
  background: var(--gold);
  color: #17130a;
}

.button.secondary {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
}

.section {
  padding: 72px clamp(18px, 5vw, 64px);
  background: rgba(16, 17, 22, 0.78);
}

.section-heading {
  max-width: 680px;
  margin-bottom: 28px;
}

.section-heading p:last-child {
  margin: 14px 0 0;
  color: var(--muted);
}

.section-heading a {
  color: var(--gold);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.feature-card {
  min-height: 180px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.feature-card p {
  margin: 0;
  color: var(--muted);
}

.checklist-section {
  background: rgba(16, 17, 22, 0.84);
  border-top: 1px solid var(--line);
}

.checklist-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: end;
  margin-bottom: 18px;
}

.faction-selector-panel {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin: 0 0 18px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.03);
}

.faction-colour-control {
  display: grid;
  gap: 6px;
  min-width: 0;
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 700;
}

.faction-colour-control > span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.faction-colour-control select {
  min-width: 0;
  min-height: 34px;
  padding: 7px 30px 7px 10px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel-solid);
  color: var(--text);
  font: inherit;
}

.subsection-heading {
  margin: 22px 0 12px;
}

.subsection-heading h3 {
  margin: 0;
}

.subsection-heading p {
  max-width: 760px;
  margin: 8px 0 0;
  color: var(--muted);
}

.hero-checklist-panel {
  margin-bottom: 20px;
}

.hero-checklist-grid {
  grid-template-columns: minmax(0, 1fr);
}

.player-colour-control {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 700;
}

.player-colour-control select {
  min-height: 38px;
  padding: 8px 34px 8px 12px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel-solid);
  color: var(--text);
  font: inherit;
}

.codex-control {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 38px;
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 700;
}

.codex-control input {
  width: 16px;
  height: 16px;
  margin: 0;
  accent-color: var(--gold);
}

.utility-button {
  min-height: 38px;
  padding: 8px 13px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  cursor: pointer;
  font: inherit;
  font-weight: 700;
}

.utility-button:hover,
.utility-button:focus-visible {
  border-color: var(--gold);
}

.import-save-control {
  position: relative;
  overflow: hidden;
}

.import-save-control input {
  position: absolute;
  inset: 0;
  opacity: 0;
  pointer-events: none;
}

.save-status {
  min-width: 76px;
  color: var(--green);
  font-size: 0.84rem;
  font-weight: 700;
  opacity: 0;
  transition: opacity 180ms ease;
}

.save-status.visible {
  opacity: 1;
}

.checklist-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.checklist-group {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  overflow: hidden;
}

.checklist-group summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 16px 18px;
  background: rgba(255, 255, 255, 0.03);
  color: var(--gold);
  cursor: pointer;
  font-weight: 700;
  list-style: none;
}

.checklist-group summary::-webkit-details-marker {
  display: none;
}

.checklist-group summary::before {
  content: "+";
  color: var(--green);
  font-size: 1rem;
  line-height: 1;
}

.checklist-group[open] summary {
  border-bottom: 1px solid var(--line);
}

.checklist-group[open] summary::before {
  content: "-";
}

.checklist-group summary span:first-child {
  flex: 1;
}

.checklist-group summary span:last-child {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 28px;
  height: 24px;
  padding: 0 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.78rem;
}

.checklist-items {
  display: grid;
  gap: 1px;
  background: var(--line);
}

.checklist-item {
  display: grid;
  gap: 12px;
  align-items: start;
  padding: 12px 14px;
  background: rgba(16, 17, 22, 0.86);
  color: var(--muted);
}

.checklist-item-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  align-items: start;
}

.card-summary strong {
  display: block;
  color: var(--text);
}

.bug-report-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--gold);
  cursor: pointer;
  font: inherit;
  font-size: 0.82rem;
  font-weight: 800;
  line-height: 1;
}

.bug-report-button:hover,
.bug-report-button:focus-visible {
  border-color: var(--gold);
  color: var(--text);
}

.card-summary span {
  display: block;
  margin-top: 2px;
  font-size: 0.84rem;
}

.card-description {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 0.84rem;
}

.colour-choice-group {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 6px;
}

.faction-technology-choice-group {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.single-owner-control {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
}

.commander-choice-group,
.promissory-choice-group {
  display: grid;
  gap: 6px;
}

.commander-other-control,
.promissory-holder-control {
  display: grid;
  grid-template-columns: minmax(92px, 0.8fr) minmax(0, 1.2fr);
  gap: 6px;
}

.commander-other-control select,
.promissory-holder-control select {
  min-width: 0;
  min-height: 30px;
  padding: 5px 28px 5px 8px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel-solid);
  color: var(--text);
  font: inherit;
  font-size: 0.78rem;
  font-weight: 700;
}

.colour-choice {
  display: flex;
  align-items: center;
  gap: 6px;
  min-height: 30px;
  padding: 5px 7px;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--muted);
  cursor: pointer;
  font-size: 0.78rem;
  font-weight: 700;
}

.colour-choice input {
  width: 14px;
  height: 14px;
  margin: 0;
  accent-color: var(--gold);
}

.colour-choice:has(input:checked) {
  border-color: var(--gold);
  background: rgba(216, 177, 95, 0.1);
  color: var(--text);
}

.colour-choice.player-colour-choice,
.colour-choice.recommended-colour-choice {
  outline: 2px solid currentColor;
  outline-offset: 2px;
}

.colour-choice.player-colour-choice:has(input:checked),
.colour-choice.recommended-colour-choice:has(input:checked) {
  background: rgba(255, 255, 255, 0.08);
}

.colour-choice.player-colour-choice.colour-red,
.colour-choice.recommended-colour-choice.colour-red {
  border-color: #c84f4f;
  color: #f0a0a0;
}

.colour-choice.player-colour-choice.colour-blue,
.colour-choice.recommended-colour-choice.colour-blue {
  border-color: #4f7dc8;
  color: #a9c4f5;
}

.colour-choice.player-colour-choice.colour-green,
.colour-choice.recommended-colour-choice.colour-green {
  border-color: #6da88a;
  color: #b8dcc9;
}

.colour-choice.player-colour-choice.colour-black,
.colour-choice.recommended-colour-choice.colour-black {
  border-color: #73737a;
  color: #c5c5cf;
}

.colour-choice.player-colour-choice.colour-yellow,
.colour-choice.recommended-colour-choice.colour-yellow {
  border-color: #d8b15f;
  color: #f3d993;
}

.colour-choice.player-colour-choice.colour-white,
.colour-choice.recommended-colour-choice.colour-white {
  border-color: #f2efe6;
  color: #ffffff;
}

.colour-red input,
.colour-red:has(input:checked) input {
  accent-color: #c84f4f;
}

.colour-blue input,
.colour-blue:has(input:checked) input {
  accent-color: #4f7dc8;
}

.colour-green input,
.colour-green:has(input:checked) input {
  accent-color: #6da88a;
}

.colour-black input,
.colour-black:has(input:checked) input {
  accent-color: #73737a;
}

.colour-yellow input,
.colour-yellow:has(input:checked) input {
  accent-color: #d8b15f;
}

.colour-white input,
.colour-white:has(input:checked) input {
  accent-color: #f2efe6;
}

.phase-section {
  background: rgba(13, 15, 20, 0.86);
  border-top: 1px solid var(--line);
}

.phase-flow-list {
  display: grid;
  gap: 16px;
}

.tip-section {
  background: var(--panel-solid);
  border-top: 1px solid var(--line);
}

.tip-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.phase-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  overflow: hidden;
}

.phase-card summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px 22px;
  background: rgba(255, 255, 255, 0.03);
  cursor: pointer;
  list-style: none;
}

.phase-card summary::-webkit-details-marker {
  display: none;
}

.phase-card summary::before {
  content: "+";
  color: var(--green);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1;
}

.phase-card[open] summary {
  border-bottom: 1px solid var(--line);
}

.phase-card[open] summary::before {
  content: "-";
}

.phase-card summary span:first-of-type {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--green);
  font-size: 0.84rem;
  font-weight: 700;
}

.phase-card summary strong {
  flex: 1;
  color: var(--gold);
  font-size: 1.15rem;
}

.phase-card summary span:last-child {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 136px;
  height: 26px;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
  white-space: nowrap;
}

.phase-step-list {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  background: var(--line);
  list-style: none;
}

.phase-step {
  display: grid;
  grid-template-columns: minmax(40px, 54px) minmax(0, 1fr);
  gap: 14px;
  padding: 16px 22px;
  background: rgba(16, 17, 22, 0.84);
}

.phase-step-number {
  color: var(--gold);
  font-weight: 700;
}

.phase-step-body {
  display: grid;
  gap: 10px;
}

.phase-step-body > p {
  margin: 0;
  color: var(--muted);
}

.active-modifiers {
  display: grid;
  gap: 10px;
}

.modifier-card {
  display: grid;
  gap: 6px;
  padding: 12px;
  border: 1px solid rgba(216, 177, 95, 0.28);
  border-radius: 6px;
  background: rgba(216, 177, 95, 0.06);
}

.modifier-card.opponent-owned {
  border-color: rgba(109, 168, 138, 0.3);
  background: rgba(109, 168, 138, 0.06);
}

.modifier-card.player-owned.has-opponent-owner {
  border-color: rgba(216, 177, 95, 0.4);
  background: linear-gradient(135deg, rgba(216, 177, 95, 0.08), rgba(109, 168, 138, 0.06));
}

.modifier-card.faction-ability-modifier {
  border-style: dashed;
}

.modifier-card-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  align-items: start;
}

.modifier-meta {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  color: var(--green);
  font-size: 0.78rem;
  font-weight: 700;
}

.owner-chip-list {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 5px;
}

.owner-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 2px 7px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--text);
}

.colour-dot {
  width: 10px;
  height: 10px;
  border: 1px solid rgba(242, 239, 230, 0.55);
  border-radius: 50%;
  background: var(--gold);
}

.colour-dot.colour-red {
  background: #c84f4f;
}

.colour-dot.colour-blue {
  background: #4f7dc8;
}

.colour-dot.colour-green {
  background: #6da88a;
}

.colour-dot.colour-black {
  background: #17181d;
}

.colour-dot.colour-yellow {
  background: #d8b15f;
}

.colour-dot.colour-white {
  background: #f2efe6;
}

.modifier-card strong {
  color: var(--text);
}

.modifier-card p {
  margin: 0;
  color: var(--muted);
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 28px clamp(18px, 5vw, 64px);
  color: var(--muted);
  font-size: 0.92rem;
}

.build-label {
  margin-left: auto;
  padding: 3px 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--green);
  font-size: 0.76rem;
  font-weight: 700;
  white-space: nowrap;
}

@media (max-width: 760px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
  }

  .hero {
    min-height: 68vh;
  }

  h1 {
    max-width: 9ch;
  }

  .feature-grid,
  .checklist-grid,
  .faction-selector-panel,
  .phase-step {
    grid-template-columns: 1fr;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .build-label {
    align-self: flex-end;
  }
}

@media (min-width: 761px) and (max-width: 1080px) {
  .checklist-grid,
  .faction-selector-panel {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}