/* ── Tokens ────────────────────────────────────────────── */

:root {
  --bg:       #08080d;
  --surface:  #101018;
  --raised:   #18182a;
  --border:   rgba(255,255,255,.06);
  --border-h: rgba(255,255,255,.12);

  --text:     #ddd9d0;
  --text-2:   #9590a0;
  --text-3:   #5c5868;

  --gold:     #c9a84c;
  --gold-dim: #8a7533;

  /* Layer palette — jewel tones */
  --l1: #7ecfe8;   /* Copy       — mercury   */
  --l2: #e8555a;   /* Control    — blood      */
  --l3: #e0b44a;   /* Text       — amber      */
  --l4: #40d48a;   /* Type       — emerald    */
  --l5: #a87cf0;   /* Color      — amethyst   */
  --l6: #e88a42;   /* Ability    — flame      */
  --l7: #5e9af0;   /* P/T        — sapphire   */

  --l7a: #7aaeee;   /* CDA        — sky        */
  --l7b: #b07ce8;   /* Set P/T    — iris       */
  --l7c: #4ecb71;   /* Counters   — jade       */
  --l7d: #e8b44a;   /* Modify P/T — gold       */
  --l7e: #e86080;   /* Switch P/T — rose       */

  --font-display: 'Cinzel', Georgia, serif;
  --font-body:    'Cormorant Garamond', Georgia, serif;
  --font-ui:      -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-mono:    'SF Mono', 'Fira Code', 'Consolas', monospace;

  --ease: cubic-bezier(.22, .61, .36, 1);
}

/* ── Reset ─────────────────────────────────────────────── */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: rgba(201,168,76,.25);
  color: #fff;
}

/* ── Header ────────────────────────────────────────────── */

header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(8,8,13,.85);
  backdrop-filter: blur(20px) saturate(1.4);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 2rem;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.wordmark {
  font-family: var(--font-display);
  font-size: .85rem;
  font-weight: 500;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--gold);
  text-decoration: none;
}

nav { display: flex; gap: 2px; }

.tab-btn {
  font-family: var(--font-ui);
  font-size: .78rem;
  font-weight: 500;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--text-3);
  background: none;
  border: none;
  padding: .5rem 1rem;
  cursor: pointer;
  position: relative;
  transition: color .25s var(--ease);
}

.tab-btn::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 1rem;
  right: 1rem;
  height: 1.5px;
  background: var(--gold);
  transform: scaleX(0);
  transition: transform .3s var(--ease);
}

.tab-btn:hover { color: var(--text-2); }

.tab-btn.active {
  color: var(--text);
}

.tab-btn.active::after {
  transform: scaleX(1);
}

/* ── Main ──────────────────────────────────────────────── */

main {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 2rem 4rem;
}

.tab-content { display: none; }
.tab-content.active { display: block; }

/* ── Hero ──────────────────────────────────────────────── */

.hero {
  padding: 4rem 0 3rem;
  text-align: center;
}

.hero-super {
  font-family: var(--font-ui);
  font-size: .7rem;
  font-weight: 500;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--gold-dim);
  margin-bottom: .75rem;
}

.hero h2 {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  font-weight: 400;
  letter-spacing: .06em;
  color: var(--text);
  line-height: 1.15;
}

.hero-sub {
  font-family: var(--font-body);
  font-size: 1.15rem;
  font-weight: 300;
  color: var(--text-2);
  margin-top: 1rem;
  line-height: 1.7;
}

/* ── Principle box ─────────────────────────────────────── */

.principle {
  max-width: 640px;
  margin: 0 auto 3.5rem;
  text-align: center;
  padding: 1.5rem 2rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  position: relative;
}

.principle-label {
  font-family: var(--font-display);
  font-size: .65rem;
  font-weight: 500;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--gold);
  position: absolute;
  top: -0.55rem;
  left: 50%;
  transform: translateX(-50%);
  background: var(--surface);
  padding: 0 .75rem;
}

.principle p {
  font-size: 1.05rem;
  font-weight: 400;
  color: var(--text-2);
  font-style: italic;
}

/* ── Layer cards ───────────────────────────────────────── */

.layer-card {
  position: relative;
  margin-bottom: 1px;
  background: var(--surface);
  border-left: 2px solid var(--lc, var(--border));
  transition: background .25s var(--ease);
}

.layer-card:first-child { border-radius: 6px 6px 0 0; }
.layer-card:last-child  { border-radius: 0 0 6px 6px; }

.layer-card:hover { background: var(--raised); }

.layer-head {
  display: grid;
  grid-template-columns: 4.5rem 1fr auto;
  align-items: center;
  padding: 1.1rem 1.5rem 1.1rem 0;
  cursor: pointer;
  user-select: none;
}

.layer-num {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 400;
  text-align: center;
  color: var(--lc, var(--text-3));
  opacity: .7;
  transition: opacity .25s var(--ease);
}

.layer-card:hover .layer-num,
.layer-card.open .layer-num { opacity: 1; }

.layer-info h3 {
  font-family: var(--font-display);
  font-size: .82rem;
  font-weight: 500;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--text);
  line-height: 1.3;
}

.layer-info .layer-rule {
  font-family: var(--font-mono);
  font-size: .68rem;
  color: var(--text-3);
  margin-top: .15rem;
  display: block;
}

.layer-chevron {
  width: 18px;
  height: 18px;
  color: var(--text-3);
  transition: transform .3s var(--ease), color .25s var(--ease);
}

.layer-card:hover .layer-chevron { color: var(--text-2); }
.layer-card.open .layer-chevron { transform: rotate(180deg); color: var(--lc, var(--text-2)); }

/* Layer body */
.layer-body {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows .35s var(--ease);
}

.layer-card.open .layer-body {
  grid-template-rows: 1fr;
}

.layer-body-inner {
  overflow: hidden;
}

.layer-body-content {
  padding: 0 1.5rem 1.5rem 4.5rem;
}

.layer-desc {
  font-size: 1.05rem;
  font-weight: 300;
  color: var(--text-2);
  margin-bottom: 1.25rem;
  max-width: 56ch;
}

.layer-section-title {
  font-family: var(--font-ui);
  font-size: .65rem;
  font-weight: 600;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--lc, var(--gold-dim));
  margin: 1.25rem 0 .5rem;
}

.layer-list {
  list-style: none;
}

.layer-list li {
  font-size: .95rem;
  font-weight: 400;
  color: var(--text-2);
  padding: .3rem 0 .3rem 1.1rem;
  position: relative;
}

.layer-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: .7rem;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--lc, var(--text-3));
  opacity: .6;
}

/* Sublayers */
.sublayer-grid {
  margin-top: 1rem;
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.sublayer-row {
  display: grid;
  grid-template-columns: 3rem 1fr;
  gap: .75rem;
  padding: .7rem .75rem;
  background: rgba(255,255,255,.02);
  border-radius: 4px;
}

.sublayer-id {
  font-family: var(--font-display);
  font-size: .9rem;
  font-weight: 400;
  color: var(--sl-color, var(--l7));
  text-align: center;
  padding-top: .1rem;
}

.sublayer-name {
  font-family: var(--font-display);
  font-size: .78rem;
  font-weight: 500;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text);
  margin-bottom: .15rem;
}

.sublayer-desc {
  font-size: .88rem;
  font-weight: 300;
  color: var(--text-2);
}

.sublayer-examples {
  font-size: .82rem;
  color: var(--text-3);
  margin-top: .25rem;
  font-style: italic;
}

/* ── Simulator ─────────────────────────────────────────── */

.sim-layout {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 2rem;
  align-items: start;
}

.sim-panel {
  /* shared */
}

.field-label {
  font-family: var(--font-ui);
  font-size: .65rem;
  font-weight: 600;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--gold-dim);
  margin-bottom: .5rem;
  display: block;
}

#scenario-select {
  width: 100%;
  padding: .55rem .75rem;
  font-family: var(--font-body);
  font-size: 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text);
  cursor: pointer;
  margin-bottom: .75rem;
  transition: border-color .2s;
}

#scenario-select:hover,
#scenario-select:focus {
  border-color: var(--border-h);
  outline: none;
}

#scenario-select option,
#permanent-select option,
#card-select option { background: var(--surface); }

#permanent-select,
#card-select {
  width: 100%;
  padding: .55rem .75rem;
  font-family: var(--font-body);
  font-size: 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text);
  cursor: pointer;
  margin-bottom: .75rem;
  transition: border-color .2s;
}

#permanent-select:hover, #permanent-select:focus,
#card-select:hover, #card-select:focus {
  border-color: var(--border-h);
  outline: none;
}

.builder-row { margin-bottom: .25rem; }

.scenario-desc {
  font-size: .92rem;
  font-weight: 300;
  color: var(--text-2);
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

/* Effect groups */
.effect-group {
  border-bottom: 1px solid var(--border);
  padding: .5rem 0;
}

.effect-group:last-child { border-bottom: none; }

.effect-group-head {
  display: flex;
  align-items: center;
  gap: .5rem;
}

.effect-dot-sm {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--dot-color, var(--text-3));
  flex-shrink: 0;
}

.effect-source {
  font-family: var(--font-display);
  font-size: .78rem;
  font-weight: 500;
  letter-spacing: .06em;
  color: var(--text);
  flex: 1;
}

.effect-remove {
  background: none;
  border: none;
  color: var(--text-3);
  font-size: 1.1rem;
  cursor: pointer;
  padding: 0 .25rem;
  line-height: 1;
  transition: color .15s;
}

.effect-remove:hover { color: var(--l2); }

.effect-sub {
  display: flex;
  align-items: baseline;
  gap: .5rem;
  padding: .15rem 0 .15rem 1.1rem;
  font-size: .82rem;
  font-weight: 300;
  color: var(--text-2);
}

.effect-ltag {
  font-family: var(--font-mono);
  font-size: .65rem;
  font-weight: 600;
  color: var(--lc, var(--text-3));
  min-width: 2rem;
  flex-shrink: 0;
}

/* Buttons */
.sim-buttons {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: .5rem;
  margin-top: 1.5rem;
}

.sim-buttons button {
  font-family: var(--font-ui);
  font-size: .75rem;
  font-weight: 500;
  letter-spacing: .06em;
  text-transform: uppercase;
  padding: .6rem .5rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--surface);
  color: var(--text-2);
  cursor: pointer;
  transition: all .2s var(--ease);
}

.sim-buttons button:hover {
  background: var(--raised);
  border-color: var(--border-h);
  color: var(--text);
}

#btn-step {
  background: transparent;
  border-color: var(--gold-dim);
  color: var(--gold);
}

#btn-step:hover {
  background: rgba(201,168,76,.1);
  border-color: var(--gold);
}

#btn-step:disabled {
  opacity: .3;
  cursor: default;
  pointer-events: none;
}

/* Card */
.card-stage {
  display: flex;
  justify-content: center;
  padding: 2rem 0;
}

.card-frame {
  --glow: var(--text-3);
  width: 280px;
  background: var(--surface);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 10px;
  padding: 1.25rem 1.5rem;
  position: relative;
  transition: border-color .5s var(--ease), box-shadow .5s var(--ease);
}

.card-frame::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: 11px;
  background: radial-gradient(ellipse at 50% 0%, var(--glow), transparent 70%);
  opacity: .08;
  pointer-events: none;
  transition: opacity .5s var(--ease);
}

.card-frame.changed {
  border-color: var(--glow);
  box-shadow: 0 0 30px -10px var(--glow);
}

.card-frame.changed::before {
  opacity: .15;
}

.card-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding-bottom: .6rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: .5rem;
}

#card-name {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: .04em;
  color: var(--text);
}

#card-mana {
  font-family: var(--font-mono);
  font-size: .72rem;
  color: var(--text-3);
}

.card-type-line {
  font-family: var(--font-ui);
  font-size: .72rem;
  font-weight: 500;
  letter-spacing: .05em;
  text-transform: uppercase;
  color: var(--text-2);
  padding: .35rem 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: .5rem;
}

.card-text {
  min-height: 70px;
  font-size: .9rem;
  font-weight: 300;
  color: var(--text);
  padding: .4rem 0;
  line-height: 1.55;
}

.card-text .no-abilities {
  color: var(--text-3);
  font-style: italic;
}

.card-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: .5rem;
  border-top: 1px solid var(--border);
}

#card-color {
  font-family: var(--font-ui);
  font-size: .68rem;
  font-weight: 500;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--text-3);
}

.card-pt {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--text);
  min-width: 2.5rem;
  text-align: center;
}

/* Log */
.log-panel {
  padding-top: .5rem;
}

.log-entry {
  display: grid;
  grid-template-columns: 3px 1fr;
  gap: .75rem;
  margin-bottom: .75rem;
  animation: logIn .35s var(--ease) both;
}

@keyframes logIn {
  from { opacity: 0; transform: translateY(-6px); }
}

.log-bar {
  border-radius: 2px;
  background: var(--bar-color, var(--text-3));
}

.log-layer {
  font-family: var(--font-display);
  font-size: .75rem;
  font-weight: 500;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--bar-color, var(--text-2));
  margin-bottom: .1rem;
}

.log-action {
  font-size: .9rem;
  font-weight: 400;
  color: var(--text);
  margin-bottom: .15rem;
}

.log-explain {
  font-size: .82rem;
  font-weight: 300;
  color: var(--text-3);
  line-height: 1.5;
}

.log-final .log-layer {
  color: var(--gold);
}

.log-final .log-bar {
  background: var(--gold);
}

/* ── Timestamps tab ────────────────────────────────────── */

.ts-section {
  margin-bottom: 2.5rem;
}

.ts-section h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 400;
  letter-spacing: .06em;
  color: var(--text);
  margin-bottom: .75rem;
  display: flex;
  align-items: center;
  gap: .75rem;
}

.ts-section h3 code {
  font-family: var(--font-mono);
  font-size: .68rem;
  font-weight: 400;
  color: var(--text-3);
  background: var(--surface);
  padding: .15rem .5rem;
  border-radius: 3px;
}

.ts-list {
  list-style: none;
  counter-reset: ts;
}

.ts-list li {
  counter-increment: ts;
  font-size: .95rem;
  font-weight: 400;
  color: var(--text-2);
  padding: .55rem 0 .55rem 2.5rem;
  position: relative;
  border-bottom: 1px solid var(--border);
}

.ts-list li:last-child { border-bottom: none; }

.ts-list li::before {
  content: counter(ts);
  position: absolute;
  left: 0;
  font-family: var(--font-display);
  font-size: .85rem;
  font-weight: 400;
  color: var(--text-3);
  width: 1.8rem;
  text-align: center;
}

.ts-body {
  font-size: 1rem;
  font-weight: 300;
  color: var(--text-2);
  margin-bottom: 1rem;
}

/* Dependency box */
.dep-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1.25rem 1.5rem;
  position: relative;
}

.dep-box-label {
  font-family: var(--font-display);
  font-size: .6rem;
  font-weight: 500;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--gold);
  position: absolute;
  top: -.45rem;
  left: 1.25rem;
  background: var(--surface);
  padding: 0 .5rem;
}

.dep-box p {
  font-size: .95rem;
  font-weight: 400;
  color: var(--text-2);
  margin-bottom: .5rem;
}

.dep-box ol {
  list-style: none;
  counter-reset: dep;
}

.dep-box ol li {
  counter-increment: dep;
  font-size: .9rem;
  color: var(--text-2);
  padding: .25rem 0 .25rem 1.5rem;
  position: relative;
}

.dep-box ol li::before {
  content: counter(dep);
  position: absolute;
  left: 0;
  font-family: var(--font-display);
  font-size: .8rem;
  color: var(--gold-dim);
}

/* Example cards */
.ts-example { margin-top: .75rem; }

.ts-ex-card {
  display: grid;
  grid-template-columns: 2.5rem 1fr;
  gap: .5rem;
  align-items: start;
  padding: .6rem 0;
  border-bottom: 1px solid var(--border);
  font-size: .9rem;
  font-weight: 400;
  color: var(--text-2);
}

.ts-ex-card:last-of-type { border-bottom: none; }

.ts-ex-layer {
  font-family: var(--font-mono);
  font-size: .72rem;
  font-weight: 600;
  color: var(--lc, var(--text-3));
  text-align: center;
  padding-top: .1rem;
}

.ts-analysis {
  font-size: .88rem;
  font-weight: 300;
  color: var(--text-3);
  margin-top: .75rem;
  padding-top: .75rem;
  border-top: 1px solid var(--border);
  line-height: 1.6;
  font-style: italic;
}

/* Myths */
.ts-myths {
  list-style: none;
}

.ts-myths li {
  padding: .75rem 0;
  border-bottom: 1px solid var(--border);
}

.ts-myths li:last-child { border-bottom: none; }

.ts-myths strong {
  display: block;
  font-family: var(--font-body);
  font-size: .95rem;
  font-weight: 500;
  color: var(--text);
  margin-bottom: .15rem;
}

.ts-myths span {
  font-size: .88rem;
  font-weight: 300;
  color: var(--text-2);
}

/* ── Footer ────────────────────────────────────────────── */

footer {
  max-width: 960px;
  margin: 0 auto;
  padding: 2rem;
  text-align: center;
  border-top: 1px solid var(--border);
}

footer p {
  font-family: var(--font-ui);
  font-size: .7rem;
  letter-spacing: .04em;
  color: var(--text-3);
}

/* ── Responsive ────────────────────────────────────────── */

@media (max-width: 768px) {
  .header-inner { padding: 0 1rem; }
  main { padding: 0 1rem 3rem; }

  .hero { padding: 2.5rem 0 2rem; }
  .hero h2 { font-size: 2rem; }

  .sim-layout {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .layer-head {
    grid-template-columns: 3.2rem 1fr auto;
  }

  .layer-body-content {
    padding-left: 3.2rem;
  }

  .card-frame { width: 100%; max-width: 280px; }

  .wordmark { font-size: .75rem; letter-spacing: .14em; }

  .tab-btn { padding: .5rem .6rem; font-size: .72rem; }
}