/* =============================================================================
   The Forge (pages/forge.html)
   Runegold broken into Runeshards on an anvil. Everything here is built on the
   site tokens in styles.css, so light and dark both work without a second set
   of colours. The only colours of its own are the ember palette, which is the
   same in both themes because fire is fire.
   ============================================================================= */

.forge-page {
  --ember: #ff9a3c;
  --ember-deep: #c2410c;
  --ember-glow: rgba(255, 154, 60, 0.45);
  --iron: #2f3640;
  --iron-dark: #171b21;
}

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

.page-hero--forge {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #1a1410 0%, #3a1f0e 45%, #14100c 100%);
  color: var(--cream);
}
[data-theme="dark"] .page-hero--forge {
  background: linear-gradient(135deg, #0b0806 0%, #24130a 45%, #080604 100%);
}
.page-hero--forge h1 { color: var(--gold-bright); }
.page-hero--forge p { color: rgba(248, 244, 227, 0.82); }

.forge-hero-inner { position: relative; z-index: 1; padding: 1rem 0; }
.forge-hero-inner h1 { font-size: 2.75rem; margin: 0.5rem 0; }
.forge-hero-inner p { font-size: 1.125rem; margin: 0; }

.forge-hero-runes {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  font-size: 2.25rem;
  line-height: 1;
}
.forge-hero-runes .rune-gold-glyph { color: var(--gold-bright); }
.forge-hero-runes .rune-shard-glyph { color: #cfe6ff; }
.forge-hero-hammer {
  font-size: 1.5rem;
  color: var(--ember);
  transform-origin: 80% 80%;
  animation: forge-hero-tap 3.2s ease-in-out infinite;
}
@keyframes forge-hero-tap {
  0%, 70%, 100% { transform: rotate(0deg); }
  78% { transform: rotate(-28deg); }
  84% { transform: rotate(6deg); }
}

/* Embers drifting up behind the title. Pure CSS, a handful of radial dots
   on two layers moving at different speeds. */
.forge-embers {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    radial-gradient(2px 2px at 12% 80%, var(--ember) 50%, transparent 52%),
    radial-gradient(1.5px 1.5px at 28% 60%, #ffd18a 50%, transparent 52%),
    radial-gradient(2px 2px at 44% 90%, var(--ember) 50%, transparent 52%),
    radial-gradient(1.5px 1.5px at 61% 70%, #ffd18a 50%, transparent 52%),
    radial-gradient(2px 2px at 77% 85%, var(--ember) 50%, transparent 52%),
    radial-gradient(1.5px 1.5px at 90% 65%, #ffd18a 50%, transparent 52%);
  background-repeat: repeat;
  background-size: 420px 220px;
  opacity: 0.7;
  animation: forge-embers-rise 14s linear infinite;
}
@keyframes forge-embers-rise {
  from { background-position: 0 0; }
  to   { background-position: 60px -440px; }
}

/* ── Layout ──────────────────────────────────────────────────────────────── */

.forge-container {
  padding: 3rem 0;
  max-width: 1100px;
  display: grid;
  gap: 2rem;
}

.forge-heading {
  color: var(--gold);
  font-family: var(--font-display);
  font-size: 1.6rem;
  margin: 0 0 1.25rem;
}
.forge-heading i { margin-right: 0.5rem; color: var(--ember); }
.forge-heading--section { text-align: center; margin-bottom: 1.5rem; }

.forge-page .card { margin: 0; }
.forge-page .card-body { padding: 2rem; }

/* ── The tale ────────────────────────────────────────────────────────────── */

.forge-tale {
  border-left: 4px solid var(--ember-deep);
}
.forge-tale-text {
  font-family: var(--font-body);
  font-size: 1.125rem;
  line-height: 1.7;
  max-width: 68ch;
}
.forge-tale-text p { margin: 0 0 1rem; }
.forge-tale-text p:last-child { margin-bottom: 0; }
.forge-dropcap::first-letter {
  font-family: var(--font-display);
  font-size: 3.4em;
  line-height: 0.8;
  float: left;
  padding: 0.12em 0.15em 0 0;
  color: var(--ember);
}

/* ── State cards (signed out, closed) ────────────────────────────────────── */

.forge-state-icon { font-size: 2.5rem; color: var(--ember); margin-bottom: 0.75rem; }
.forge-state p { color: var(--text-secondary); margin: 0 0 1.25rem; }
.forge-state-btn { display: inline-block; padding: 0.875rem 1.5rem; }
.forge-state--dark { border-left: 4px solid var(--error); }
.forge-state--dark .forge-state-icon { color: var(--text-muted); }

/* ── The anvil ───────────────────────────────────────────────────────────── */

.forge-anvil-section { border-left: 4px solid var(--ember); }

.forge-scales {
  display: grid;
  grid-template-columns: 1fr minmax(180px, 240px) 1fr;
  gap: 1.5rem;
  align-items: stretch;
  margin-bottom: 1.5rem;
}

.forge-scale {
  background: var(--surface-alt);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.5rem;
  min-width: 0;
}
[data-theme="dark"] .forge-scale { border-color: var(--gray-700); }
.forge-scale--gold { border-top: 3px solid var(--gold-bright); }
.forge-scale--shards { border-top: 3px solid #7fb3ff; }

.forge-scale-label {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
}
.forge-scale-amount {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1.1;
  color: var(--text-primary);
  font-variant-numeric: tabular-nums;
}
.forge-scale--gold .forge-scale-amount { color: var(--gold); }
.forge-scale-detail { margin: 0.75rem 0 0; }
.forge-scale-detail > div {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.35rem 0;
  border-top: 1px dashed var(--gray-300);
  font-size: 0.95rem;
}
[data-theme="dark"] .forge-scale-detail > div { border-top-color: var(--gray-700); }
.forge-scale-detail dt { color: var(--text-secondary); }
.forge-scale-detail dd { margin: 0; font-weight: 600; font-variant-numeric: tabular-nums; }
.forge-scale-note {
  margin: 0.75rem 0 0;
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--text-muted);
}

/* The anvil itself: SVG iron, a hammer that swings, an ingot that shatters. */
.forge-anvil {
  position: relative;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  min-height: 200px;
  padding-bottom: 0.5rem;
}
.forge-anvil-svg {
  width: 100%;
  max-width: 220px;
  height: auto;
  filter: drop-shadow(0 8px 12px rgba(0, 0, 0, 0.35));
}
.forge-anvil-hot {
  opacity: 0.55;
  animation: forge-hot-breathe 2.6s ease-in-out infinite;
}
@keyframes forge-hot-breathe {
  0%, 100% { opacity: 0.35; }
  50% { opacity: 0.9; }
}

.forge-hammer {
  position: absolute;
  left: 50%;
  top: 0;
  font-size: 2.6rem;
  color: #c9d1da;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
  transform: translateX(-10%) rotate(-40deg);
  transform-origin: 85% 85%;
  transition: transform 180ms cubic-bezier(0.2, 0.9, 0.3, 1.4);
}
.forge-anvil.is-striking .forge-hammer {
  animation: forge-swing 520ms cubic-bezier(0.55, 0, 0.2, 1) forwards;
}
@keyframes forge-swing {
  0%   { transform: translateX(-10%) rotate(-40deg); }
  35%  { transform: translateX(-10%) rotate(-70deg); }
  60%  { transform: translateX(-10%) rotate(18deg); }
  75%  { transform: translateX(-10%) rotate(12deg); }
  100% { transform: translateX(-10%) rotate(-40deg); }
}

/* Sits on the hot line of the anvil face, below the hammer's resting arc. */
.forge-ingot {
  position: absolute;
  left: 50%;
  top: 36%;
  transform: translateX(-50%);
  font-size: 1.6rem;
  color: var(--gold-bright);
  text-shadow: 0 0 10px var(--ember-glow);
  transition: opacity 200ms ease, transform 200ms ease;
}
.forge-anvil.is-striking .forge-ingot {
  animation: forge-ingot-break 520ms ease forwards;
}
@keyframes forge-ingot-break {
  0%, 58% { opacity: 1; transform: translateX(-50%) scale(1); }
  62% { opacity: 1; transform: translateX(-50%) scale(1.25); }
  100% { opacity: 0; transform: translateX(-50%) scale(0.4); }
}

.forge-sparks {
  position: absolute;
  left: 50%;
  top: 30%;
  width: 0;
  height: 0;
  pointer-events: none;
}
.forge-spark {
  position: absolute;
  left: 0;
  top: 0;
  width: var(--spark-size, 5px);
  height: var(--spark-size, 5px);
  border-radius: 50%;
  background: var(--spark-color, var(--ember));
  box-shadow: 0 0 6px var(--spark-color, var(--ember));
  animation: forge-spark-fly var(--spark-dur, 700ms) ease-out forwards;
}
@keyframes forge-spark-fly {
  0%   { transform: translate(0, 0) scale(1); opacity: 1; }
  100% { transform: translate(var(--spark-dx), var(--spark-dy)) scale(0.2); opacity: 0; }
}

/* Flash on the whole card when the hammer lands. */
.forge-anvil-section.is-flashing {
  animation: forge-card-flash 600ms ease-out;
}
@keyframes forge-card-flash {
  0% { box-shadow: 0 0 0 0 var(--ember-glow); }
  30% { box-shadow: 0 0 40px 6px var(--ember-glow); }
  100% { box-shadow: 0 0 0 0 transparent; }
}

/* Number roll on the two scale amounts after a strike. */
.forge-scale-amount.is-rolling { animation: forge-roll 500ms ease; }
@keyframes forge-roll {
  0% { transform: translateY(0); }
  40% { transform: translateY(-6px); opacity: 0.4; }
  100% { transform: translateY(0); opacity: 1; }
}

/* ── Empty state ─────────────────────────────────────────────────────────── */

.forge-empty {
  text-align: center;
  padding: 1.5rem 1rem 0.5rem;
  color: var(--text-secondary);
}
.forge-empty i { font-size: 2rem; color: var(--text-muted); margin-bottom: 0.5rem; }
.forge-empty p { margin: 0 0 0.75rem; }
.forge-inline-link { color: var(--link-color); font-weight: 600; }

/* ── The work: slider, presets, preview, strike ──────────────────────────── */

.forge-work { display: grid; gap: 1.25rem; }
.forge-work-label {
  font-family: var(--font-display);
  font-size: 1.15rem;
  color: var(--text-primary);
}

.forge-amount-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1.25rem;
  align-items: center;
}

.forge-slider {
  width: 100%;
  -webkit-appearance: none;
  appearance: none;
  height: 10px;
  border-radius: 5px;
  background: linear-gradient(90deg, var(--gold-bright) var(--forge-fill, 0%), var(--gray-300) var(--forge-fill, 0%));
  outline: none;
}
[data-theme="dark"] .forge-slider {
  background: linear-gradient(90deg, var(--gold-bright) var(--forge-fill, 0%), var(--gray-700) var(--forge-fill, 0%));
}
.forge-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--ember);
  border: 3px solid var(--iron-dark);
  box-shadow: 0 0 10px var(--ember-glow);
  cursor: pointer;
}
.forge-slider::-moz-range-thumb {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--ember);
  border: 3px solid var(--iron-dark);
  box-shadow: 0 0 10px var(--ember-glow);
  cursor: pointer;
}
.forge-slider:focus-visible { box-shadow: 0 0 0 3px var(--ember-glow); }

.forge-amount-input {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--surface-alt);
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-md);
  padding: 0.25rem 0.75rem 0.25rem 0.25rem;
}
[data-theme="dark"] .forge-amount-input { border-color: var(--gray-700); }
.forge-amount-input:focus-within { border-color: var(--gold); }
.forge-amount-input input {
  width: 7ch;
  border: 0;
  background: transparent;
  color: var(--text-primary);
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  text-align: right;
  padding: 0.35rem 0.25rem;
  font-variant-numeric: tabular-nums;
  -moz-appearance: textfield;
}
.forge-amount-input input::-webkit-outer-spin-button,
.forge-amount-input input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.forge-amount-input input:focus { outline: none; }
.forge-amount-input .rune-gold-glyph { font-size: 1.25rem; }

.forge-presets { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.forge-preset {
  background: transparent;
  border: 1px solid var(--gray-300);
  color: var(--text-secondary);
  border-radius: var(--radius-full);
  padding: 0.4rem 0.95rem;
  font-size: 0.9rem;
  cursor: pointer;
  transition: border-color var(--transition-fast), color var(--transition-fast), background var(--transition-fast);
}
[data-theme="dark"] .forge-preset { border-color: var(--gray-700); }
.forge-preset:hover, .forge-preset:focus-visible {
  border-color: var(--gold);
  color: var(--gold);
  outline: none;
}
.forge-preset.is-active {
  background: var(--gold);
  color: var(--text-on-gold);
  border-color: var(--gold);
}
.forge-preset:disabled { opacity: 0.45; cursor: not-allowed; }

.forge-preview {
  background: var(--surface-alt);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  border: 1px dashed var(--gray-300);
}
[data-theme="dark"] .forge-preview { border-color: var(--gray-700); }
.forge-preview-main {
  font-family: var(--font-display);
  font-size: 1.85rem;
  font-weight: 700;
  text-align: center;
  color: var(--text-primary);
  font-variant-numeric: tabular-nums;
  margin-bottom: 0.75rem;
}
.forge-preview-main .rune-gold-glyph { color: var(--gold); }
.forge-preview-main .rune-shard-glyph { color: #7fb3ff; }
.forge-preview-arrow { margin: 0 0.75rem; color: var(--ember); font-size: 1.4rem; }
.forge-preview-note { margin: 0; text-align: center; color: var(--text-secondary); font-size: 0.95rem; }
.forge-gate-link { margin: 0; text-align: center; color: var(--text-muted); }
.forge-gate-link a { color: var(--link-color); }
.forge-preview-lines { list-style: none; margin: 0; padding: 0; }
.forge-preview-lines li {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.4rem 0;
  border-top: 1px solid var(--gray-200);
  font-size: 0.95rem;
  color: var(--text-secondary);
}
[data-theme="dark"] .forge-preview-lines li { border-top-color: var(--gray-700); }
.forge-preview-lines strong { color: var(--text-primary); font-variant-numeric: tabular-nums; }
.forge-preview-lines strong.forge-nothing { color: var(--text-success-accessible); }

.forge-strike {
  width: 100%;
  padding: 1.25rem;
  font-size: 1.2rem;
  letter-spacing: 0.02em;
}
.forge-strike i { margin-right: 0.5rem; }
.forge-strike:disabled { opacity: 0.6; cursor: not-allowed; }
.forge-work-footnote {
  margin: 0;
  text-align: center;
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* ── The smith's terms ───────────────────────────────────────────────────── */

.forge-terms-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}
.forge-term { text-align: center; }
.forge-term .card-body { padding: 1.75rem 1.5rem; }
.forge-term-rune {
  font-size: 2.25rem;
  line-height: 1;
  color: var(--ember);
  margin-bottom: 0.5rem;
}
.forge-term h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--gold);
  margin: 0 0 0.5rem;
}
.forge-term p {
  margin: 0;
  color: var(--text-secondary);
  line-height: 1.6;
  font-size: 0.975rem;
}

/* ── Where hail falls ────────────────────────────────────────────────────── */

.forge-uses { border-left: 4px solid #7fb3ff; }
.forge-uses-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.75rem; }
.forge-uses-list li {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  color: var(--text-secondary);
  line-height: 1.55;
}
.forge-uses-list li i { color: #7fb3ff; font-size: 1.25rem; margin-top: 0.15rem; width: 1.5rem; text-align: center; }
.forge-uses-list strong { color: var(--text-primary); }
.forge-uses-foot { margin: 1.25rem 0 0; font-size: 0.95rem; color: var(--text-muted); }

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

@media (max-width: 860px) {
  .forge-scales { grid-template-columns: 1fr; }
  .forge-anvil { min-height: 170px; order: -1; }
  .forge-terms-grid { grid-template-columns: 1fr; }
  .forge-hero-inner h1 { font-size: 2.2rem; }
}
@media (max-width: 560px) {
  .forge-page .card-body { padding: 1.25rem; }
  .forge-amount-row { grid-template-columns: 1fr; }
  .forge-amount-input { justify-content: flex-end; }
  .forge-preview-main { font-size: 1.5rem; }
  .forge-tale-text { font-size: 1.05rem; }
}

/* ── Reduced motion: the forge still works, it just does not move ────────── */

@media (prefers-reduced-motion: reduce) {
  .forge-hero-hammer,
  .forge-embers,
  .forge-anvil-hot,
  .forge-anvil.is-striking .forge-hammer,
  .forge-anvil.is-striking .forge-ingot,
  .forge-anvil-section.is-flashing,
  .forge-scale-amount.is-rolling { animation: none; }
  .forge-spark { display: none; }
  .forge-anvil.is-striking .forge-ingot { opacity: 0; }
}