:root {
  --bg: #f1ede3;
  --paper: #fffdf8;
  --ink: #14120f;
  --ink-dim: #5c584e;
  --line: #14120f;

  --accent-egyptian: #dda100;
  --accent-rws: #c81e1e;
  --accent-solabusca: #1b4f9c;
  --accent: var(--accent-rws);
  --accent-text: #ffffff;

  --card-w: 300px;
  --card-ratio: 0.56 / 1;

  --font-display: "Jost", sans-serif;
  --font-body: "IBM Plex Sans", sans-serif;
  --font-mono: "IBM Plex Mono", monospace;
}

body[data-deck="egyptian"] { --accent: var(--accent-egyptian); --accent-text: #14120f; }
body[data-deck="rws"] { --accent: var(--accent-rws); --accent-text: #ffffff; }
body[data-deck="solabusca"] { --accent: var(--accent-solabusca); --accent-text: #ffffff; }

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  padding: 56px 20px 64px;
}

main {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
  width: 100%;
  max-width: 520px;
}

main.wide {
  max-width: 1120px;
}

.mark {
  display: block;
}

header.masthead {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  width: 100%;
  padding-bottom: 22px;
  border-bottom: 3px solid var(--line);
}

h1 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 2.4rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  text-align: center;
  color: var(--ink);
}

.site-nav {
  display: flex;
  gap: 28px;
  justify-content: center;
}

.site-nav a {
  color: var(--ink-dim);
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding-bottom: 6px;
  border-bottom: 3px solid transparent;
  transition: color 0.15s ease, border-color 0.15s ease;
}

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

.site-nav a.active {
  color: var(--ink);
  border-color: var(--accent);
}

.reversed-toggle {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-dim);
  cursor: pointer;
  user-select: none;
}

.reversed-toggle input {
  appearance: none;
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  margin: 0;
  border: 2px solid var(--ink);
  background: var(--paper);
  position: relative;
  cursor: pointer;
  flex-shrink: 0;
}

.reversed-toggle input:checked::after {
  content: "";
  position: absolute;
  inset: 3px;
  background: var(--ink);
}

.deck-picker {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0;
  border: 2px solid var(--ink);
}

.deck-btn {
  background: var(--paper);
  border: none;
  border-right: 2px solid var(--ink);
  color: var(--ink);
  padding: 10px 18px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}

.deck-btn:last-child {
  border-right: none;
}

.deck-btn:hover {
  background: var(--bg);
}

.deck-btn.active {
  background: var(--accent);
  color: var(--accent-text);
}

.stage {
  perspective: 1200px;
}

.card {
  width: var(--card-w);
  aspect-ratio: var(--card-ratio);
  max-width: 80vw;
  cursor: pointer;
}

.card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  transition: transform 0.6s cubic-bezier(0.4, 0.2, 0.2, 1);
  transform-style: preserve-3d;
}

.card.flipped .card-inner {
  transform: rotateY(180deg);
}

.card-face {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  border: 2px solid var(--line);
  border-radius: 0;
  overflow: hidden;
  background: var(--paper);
  box-shadow: 8px 8px 0 var(--accent);
}

.card-back {
  display: flex;
  align-items: center;
  justify-content: center;
}

.back-mark {
  width: 30%;
  aspect-ratio: 1;
  border: 3px solid var(--ink);
  border-radius: 50%;
  position: relative;
}

.back-mark::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(45deg, transparent 47%, var(--ink) 48.5%, var(--ink) 51.5%, transparent 53%);
}

.card-front {
  transform: rotateY(180deg);
}

.card-image {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.caption {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  max-width: 420px;
  text-align: center;
}

.card-num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--accent);
}

.card-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.4rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--ink);
}

.card-orientation {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--ink-dim);
}

.card-meaning {
  font-size: 0.95rem;
  line-height: 1.55;
  color: var(--ink);
}

#draw-btn {
  background: var(--ink);
  border: 2px solid var(--ink);
  color: var(--paper);
  padding: 14px 36px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  cursor: pointer;
  box-shadow: 6px 6px 0 var(--accent);
  transition: transform 0.12s ease, box-shadow 0.12s ease, background 0.12s ease, color 0.12s ease;
}

#draw-btn:hover {
  background: var(--paper);
  color: var(--ink);
}

#draw-btn:active {
  transform: translate(6px, 6px);
  box-shadow: 0 0 0 var(--accent);
}

.deck-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 24px;
  width: 100%;
}

.deck-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: var(--paper);
  border: 2px solid var(--line);
  padding: 14px;
  transition: box-shadow 0.15s ease;
}

.deck-card:hover {
  box-shadow: 5px 5px 0 var(--accent);
}

.deck-card picture {
  display: block;
}

.deck-card img {
  width: 100%;
  height: auto;
  border: 1px solid var(--ink);
  display: block;
}

.deck-card-num {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  color: var(--accent);
}

.deck-card-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  line-height: 1.3;
  color: var(--ink);
}

.deck-card-meanings p {
  margin: 0;
  font-size: 0.8rem;
  line-height: 1.5;
  color: var(--ink);
}

.deck-card-meanings .label {
  display: block;
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: 0.66rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-top: 10px;
  margin-bottom: 2px;
}

@media (max-width: 400px) {
  :root {
    --card-w: 240px;
  }
  h1 { font-size: 1.8rem; }
}