/* Gothic Remake Lockpicker — dark iron & bronze, mobile-first, no webfonts. */

:root {
  --bg: #0d0c0a;
  --bg-raised: #16140f;
  --bg-panel: #1c1913;
  --border: #33302642;
  --border-strong: #4a4335;
  --text: #e9e1cf;
  --text-dim: #a89e86;
  --bronze: #c9a227;
  --bronze-bright: #ffd75e;
  --green: #57d977;
  --red: #e05d4f;
  --radius: 10px;
  --cell: 31px;
  --cell-gap: 3px;
}

* {
  box-sizing: border-box;
}

html {
  color-scheme: dark;
}

body {
  margin: 0;
  background:
    radial-gradient(1200px 500px at 50% -10%, #241f15 0%, transparent 60%),
    var(--bg);
  color: var(--text);
  font-family: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  font-size: 16px;
  line-height: 1.55;
}

.site-shell {
  width: min(1120px, 100% - 32px);
  margin-inline: auto;
}

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

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-block: 14px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  background: linear-gradient(160deg, #2a251b, #14110c);
  color: var(--bronze-bright);
  font-size: 19px;
}

.topnav,
.site-footer nav {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

.topnav a,
.site-footer a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 0.95rem;
}

.topnav a:hover,
.site-footer a:hover {
  color: var(--bronze-bright);
}

.site-footer {
  margin-top: 48px;
  padding-block: 24px 32px;
  border-top: 1px solid var(--border);
  color: var(--text-dim);
  font-size: 0.9rem;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  justify-content: space-between;
}

.site-footer p {
  margin: 0;
}

/* ---------- tool ---------- */

.tool {
  margin-top: 8px;
}

.tool-head {
  text-align: center;
  max-width: 760px;
  margin-inline: auto;
}

h1 {
  font-size: clamp(1.5rem, 6vw, 2.5rem);
  line-height: 1.15;
  margin: 6px 0 10px;
  color: var(--bronze-bright);
  text-shadow: 0 0 24px #c9a22733;
  letter-spacing: 0.01em;
  text-wrap: balance;
  overflow-wrap: break-word;
}

.lede {
  color: var(--text-dim);
  margin: 0 0 12px;
  font-size: 1rem;
}

.tool-grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 18px;
  align-items: start;
}

.panel {
  background: linear-gradient(180deg, var(--bg-panel), var(--bg-raised));
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: 0 18px 40px #0009;
}

.step-block + .step-block {
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px dashed var(--border);
}

.step-block h2,
.solution h2 {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1rem;
  margin: 0 0 8px;
  color: var(--text);
}

.step-num {
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--bronze);
  color: #17130a;
  font-size: 0.85rem;
  font-weight: 700;
  flex: none;
}

.hint {
  color: var(--text-dim);
  font-size: 0.85rem;
  margin: 8px 0 0;
}

/* plate count */

.plate-count {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.count-btn {
  width: 44px;
  height: 40px;
  border-radius: 8px;
  border: 1px solid var(--border-strong);
  background: #211d15;
  color: var(--text);
  font-size: 1.05rem;
  font-weight: 700;
  cursor: pointer;
}

.count-btn.is-active {
  background: var(--bronze);
  border-color: var(--bronze-bright);
  color: #17130a;
}

/* mode switch */

.mode-switch {
  display: inline-flex;
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: 10px;
}

.mode-btn {
  border: 0;
  background: #211d15;
  color: var(--text-dim);
  padding: 8px 14px;
  font-size: 0.9rem;
  cursor: pointer;
}

.mode-btn.is-active {
  background: var(--bronze);
  color: #17130a;
  font-weight: 700;
}

/* pin grid */

.pin-grid {
  display: grid;
  gap: var(--cell-gap);
  overflow-x: auto;
  padding-bottom: 2px;
}

.pin-row {
  display: grid;
  grid-template-columns: 34px repeat(7, var(--cell));
  gap: var(--cell-gap);
  align-items: center;
}

.pin-row-label {
  color: var(--text-dim);
  font-size: 0.8rem;
  font-weight: 700;
  text-align: right;
  padding-right: 4px;
  white-space: nowrap;
}

.pin-cell {
  position: relative;
  width: var(--cell);
  height: var(--cell);
  border-radius: 6px;
  border: 1px solid var(--border-strong);
  background: #14120d;
  cursor: pointer;
  padding: 0;
}

.pin-cell:hover {
  border-color: var(--bronze);
}

.pin-cell .hole-num {
  position: absolute;
  top: 1px;
  left: 3px;
  font-size: 0.55rem;
  color: #6d6450;
  pointer-events: none;
}

.pin-cell.is-goal {
  border-color: #57d97755;
}

.pin-cell.is-start::after {
  content: "";
  position: absolute;
  inset: 7px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, var(--bronze-bright), #8a6d14);
  box-shadow: 0 0 8px #ffd75e88;
}

.pin-cell.is-target::before {
  content: "";
  position: absolute;
  inset: 3px;
  border-radius: 50%;
  border: 2px solid var(--green);
  opacity: 0.9;
}

.pin-cell.is-solved-pin::after {
  box-shadow: 0 0 12px var(--green);
}

.legend-pin {
  display: inline-block;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  vertical-align: -1px;
}

.legend-pin.start {
  background: radial-gradient(circle at 35% 30%, var(--bronze-bright), #8a6d14);
}

.legend-pin.target {
  border: 2px solid var(--green);
}

/* link grid */

.link-grid-wrap {
  overflow-x: auto;
}

.link-grid {
  display: grid;
  gap: var(--cell-gap);
  width: max-content;
}

.link-cell {
  width: var(--cell);
  height: var(--cell);
  border-radius: 6px;
  border: 1px solid var(--border-strong);
  background: #14120d;
  color: var(--text-dim);
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  padding: 0;
}

.link-cell:hover {
  border-color: var(--bronze);
}

.link-cell.is-same {
  background: #2c3a22;
  border-color: var(--green);
  color: var(--green);
}

.link-cell.is-opposite {
  background: #3a2622;
  border-color: var(--red);
  color: var(--red);
}

.link-cell.is-self {
  background: #241f15;
  color: var(--bronze);
  cursor: default;
}

.link-head {
  display: grid;
  place-items: center;
  width: var(--cell);
  height: var(--cell);
  color: var(--text-dim);
  font-size: 0.8rem;
  font-weight: 700;
}

/* actions */

.actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 20px;
}

.solve-btn {
  background: linear-gradient(180deg, var(--bronze-bright), var(--bronze));
  color: #17130a;
  border: 0;
  border-radius: 8px;
  padding: 13px 26px;
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  cursor: pointer;
  box-shadow: 0 6px 20px #c9a22744;
}

.solve-btn:hover {
  filter: brightness(1.08);
}

.ghost-btn {
  background: transparent;
  border: 1px solid var(--border-strong);
  color: var(--text);
  border-radius: 8px;
  padding: 10px 16px;
  font-size: 0.92rem;
  cursor: pointer;
}

.ghost-btn:hover {
  border-color: var(--bronze);
  color: var(--bronze-bright);
}

.mirror-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-dim);
  font-size: 0.9rem;
  cursor: pointer;
  user-select: none;
}

.mirror-toggle input {
  accent-color: var(--bronze);
  width: 16px;
  height: 16px;
}

.mirror-hint {
  margin-top: 10px;
}

/* ---------- solution ---------- */

.solution {
  position: sticky;
  top: 16px;
}

.solution-empty {
  color: var(--text-dim);
  font-size: 0.92rem;
}

.solution-empty ul {
  margin: 10px 0 0;
  padding-left: 20px;
}

.solution-empty li + li {
  margin-top: 6px;
}

.solution-error {
  border: 1px solid var(--red);
  background: #e05d4f14;
  color: #f2b3ab;
  border-radius: 8px;
  padding: 12px 14px;
  font-size: 0.92rem;
}

.solution-meta {
  margin: 0 0 10px;
  color: var(--text-dim);
  font-size: 0.9rem;
}

.solution-meta strong {
  color: var(--bronze-bright);
}

.step-list {
  margin: 0 0 14px;
  padding-left: 22px;
  max-height: 220px;
  overflow-y: auto;
}

.step-list li {
  padding: 4px 6px;
  border-radius: 6px;
  font-size: 0.98rem;
}

.step-list li.is-current {
  background: #c9a22722;
  outline: 1px solid var(--bronze);
}

.step-list li .dir-right {
  color: var(--green);
  font-weight: 700;
}

.step-list li .dir-left {
  color: var(--bronze-bright);
  font-weight: 700;
}

.playback-grid {
  pointer-events: none;
  margin-bottom: 12px;
}

.playback-grid .pin-row-label.is-moved {
  color: var(--bronze-bright);
}

.playback-controls {
  display: flex;
  gap: 8px;
  justify-content: center;
}

.playback-counter {
  text-align: center;
  color: var(--text-dim);
  font-size: 0.85rem;
  margin: 8px 0 0;
}

.copy-btn {
  margin-top: 12px;
  width: 100%;
}

/* ---------- below the fold ---------- */

.ad-slot:empty {
  display: none;
}

.content {
  max-width: 780px;
  margin-top: 40px;
}

.content h2 {
  color: var(--bronze-bright);
  font-size: 1.35rem;
  margin: 34px 0 10px;
}

.content p,
.content li {
  color: #cfc6b1;
}

.content a {
  color: var(--bronze-bright);
}

.content details {
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  padding: 10px 14px;
  background: var(--bg-raised);
}

.content details + details {
  margin-top: 8px;
}

.content summary {
  cursor: pointer;
  font-weight: 700;
  color: var(--text);
}

.content details p {
  margin: 8px 0 2px;
}

.guide-list {
  padding-left: 20px;
}

.guide-list li + li {
  margin-top: 6px;
}

/* ---------- article pages ---------- */

.article {
  max-width: 780px;
}

.article h1 {
  text-align: left;
}

.article-meta {
  color: var(--text-dim);
  font-size: 0.85rem;
  margin: -4px 0 20px;
}

.article h2 {
  color: var(--bronze-bright);
  font-size: 1.25rem;
  margin: 30px 0 8px;
}

.article p,
.article li {
  color: #cfc6b1;
}

.article a {
  color: var(--bronze-bright);
}

.article table {
  border-collapse: collapse;
  width: 100%;
  font-size: 0.92rem;
  margin: 12px 0;
}

.article th,
.article td {
  border: 1px solid var(--border-strong);
  padding: 8px 10px;
  text-align: left;
}

.article th {
  background: #241f15;
  color: var(--bronze-bright);
}

.cta-box {
  border: 1px solid var(--bronze);
  background: #c9a22714;
  border-radius: var(--radius);
  padding: 16px 18px;
  margin: 24px 0;
}

.cta-box a {
  font-weight: 700;
}

/* setup columns: pin grid + link grid side by side on wide screens */

@media (min-width: 1100px) {
  .setup-cols {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 20px;
    align-items: start;
  }

  .setup-cols .step-block + .step-block {
    margin-top: 0;
    padding-top: 0;
    border-top: 0;
  }
}

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

@media (max-width: 900px) {
  .tool-grid {
    grid-template-columns: 1fr;
  }

  .solution {
    position: static;
  }
}

@media (max-width: 480px) {
  :root {
    --cell: 30px;
    --cell-gap: 3px;
  }

  .panel {
    padding: 14px;
  }

  .topbar {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
}