/* ─── Custom Properties ─────────────────────────────────────── */
:root {
  --ink:        #1a1a1a;
  --washi:      #f5f0e8;
  --vermillion: #c0392b;
  --bamboo:     #8B6F47;
  --gold:       #c9a84c;
  --font-serif: 'Noto Serif', Georgia, serif;
  --font-brush: 'Shippori Mincho', serif;
}

/* ─── Reset ─────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; }
body {
  font-family: var(--font-serif);
  background: var(--washi);
  color: var(--ink);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
a { color: var(--vermillion); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ─── Nav ───────────────────────────────────────────────────── */
.site-nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 0.75rem 1.25rem;
  border-bottom: 1px solid rgba(192, 57, 43, 0.2);
}
.nav-logo {
  font-family: var(--font-brush);
  font-size: 1.25rem;
  color: var(--vermillion);
  margin-right: auto;
}

/* ─── Main / Screens ────────────────────────────────────────── */
main { flex: 1; }

.screen { display: none; }
.screen.active { display: flex; flex-direction: column; align-items: center; padding: 2rem 1rem; }
.screen.hidden { display: none; }

/* ─── Draw Screen ───────────────────────────────────────────── */
.draw-title {
  font-family: var(--font-brush);
  font-size: clamp(2rem, 8vw, 3rem);
  text-align: center;
  line-height: 1.2;
  color: var(--ink);
}
.draw-title span { color: var(--vermillion); }

.draw-subtitle {
  margin-top: 0.5rem;
  color: #666;
  font-style: italic;
  font-size: 0.9rem;
}

.tube-container {
  margin: 2rem auto;
  width: min(180px, 50vw);
  cursor: pointer;
  user-select: none;
}

#tube-svg {
  width: 100%;
  height: auto;
  overflow: visible;
}

#stick-group {
  transform: translateY(50px);
  transform-origin: 50px 140px;
}

.draw-btn {
  margin-top: 1rem;
  background: var(--vermillion);
  color: #fff;
  border: none;
  border-radius: 4px;
  padding: 0.85rem 2.5rem;
  font-family: var(--font-serif);
  font-size: 1.1rem;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s;
}
.draw-btn:hover { background: #a93226; }
.draw-btn:active { transform: scale(0.97); }
.draw-btn:disabled { background: #bbb; cursor: default; }

/* ─── Result Screen ─────────────────────────────────────────── */
#result-screen.active {
  padding: 1.5rem 1rem 3rem;
}

/* ─── Omikuji Slip ──────────────────────────────────────────── */
.omikuji-slip {
  width: min(340px, 96vw);
  background: var(--washi);
  border: 2px dashed var(--vermillion);
  border-radius: 4px;
  padding: 1.5rem 1.25rem;
  margin: 0 auto;
  box-shadow: 2px 4px 16px rgba(0,0,0,0.12);
  position: relative;
}

.slip-header {
  text-align: center;
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(192, 57, 43, 0.3);
  margin-bottom: 1rem;
}
.slip-title-kanji {
  font-family: var(--font-brush);
  font-size: 1.1rem;
  letter-spacing: 0.4em;
  color: var(--vermillion);
}

/* Poem — vertical-rl layout */
.slip-poem {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  text-align: center;
  font-family: var(--font-brush);
  font-size: 0.85rem;
  line-height: 1.9;
  color: var(--ink);
  margin: 0 auto 1.25rem;
  max-height: 160px;
  overflow: hidden;
  white-space: pre-line;
}

/* Grade */
.slip-grade-block {
  text-align: center;
  padding: 0.75rem 0;
  border-top: 1px solid rgba(192, 57, 43, 0.25);
  border-bottom: 1px solid rgba(192, 57, 43, 0.25);
  margin-bottom: 1rem;
}
.slip-grade-label {
  font-size: 0.7rem;
  letter-spacing: 0.25em;
  color: #888;
  margin-bottom: 0.25rem;
}
.slip-grade-ja {
  font-family: var(--font-brush);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--vermillion);
  line-height: 1;
}
.slip-grade-en {
  font-size: 0.85rem;
  color: #555;
  margin-top: 0.25rem;
  font-style: italic;
}

/* Category grid */
.slip-categories { margin-bottom: 1rem; }

.slip-cat-row {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 0.5rem;
  padding: 0.35rem 0;
  border-bottom: 1px solid rgba(0,0,0,0.06);
  font-size: 0.82rem;
}
.cat-label {
  color: var(--vermillion);
  font-family: var(--font-brush);
  font-size: 0.78rem;
}
.cat-label em {
  display: block;
  font-style: normal;
  color: #999;
  font-size: 0.68rem;
  font-family: var(--font-serif);
}
.cat-value { color: var(--ink); align-self: center; }

/* Lucky / Unlucky */
.slip-luck {
  border-top: 1px solid rgba(0,0,0,0.1);
  padding-top: 0.75rem;
  margin-bottom: 0.75rem;
}
.luck-section { margin-bottom: 0.5rem; }
.luck-row {
  display: grid;
  grid-template-columns: 70px 1fr auto;
  gap: 0.4rem;
  padding: 0.25rem 0;
  font-size: 0.78rem;
  align-items: center;
}
.luck-label {
  font-family: var(--font-brush);
  color: var(--vermillion);
  font-size: 0.72rem;
}
.luck-bad .luck-label { color: #555; }
.luck-value { color: var(--ink); }
.color-swatch {
  width: 18px;
  height: 18px;
  border-radius: 2px;
  border: 1px solid rgba(0,0,0,0.15);
  flex-shrink: 0;
}

/* Advice / footer */
.slip-advice {
  text-align: center;
  font-style: italic;
  font-size: 0.8rem;
  color: #666;
  margin: 0.5rem 0;
}
.slip-watermark {
  text-align: center;
  font-size: 0.65rem;
  color: #bbb;
  margin-top: 0.75rem;
  letter-spacing: 0.05em;
}

/* ─── Result Actions ─────────────────────────────────────────── */
.result-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  justify-content: center;
  margin: 1.25rem auto;
  width: min(340px, 96vw);
}
.action-btn {
  flex: 1 1 calc(50% - 0.6rem);
  background: var(--vermillion);
  color: #fff;
  border: none;
  border-radius: 4px;
  padding: 0.7rem 0.5rem;
  font-family: var(--font-serif);
  font-size: 0.9rem;
  cursor: pointer;
  transition: background 0.15s;
}
.action-btn:hover { background: #a93226; }
.action-btn--secondary {
  background: transparent;
  border: 1px solid var(--vermillion);
  color: var(--vermillion);
}
.action-btn--secondary:hover { background: rgba(192, 57, 43, 0.08); }

/* Ad slot placeholder */
.ad-slot { width: min(340px, 96vw); min-height: 50px; margin: 0.5rem auto; }

/* ─── Footer ────────────────────────────────────────────────── */
.site-footer {
  text-align: center;
  padding: 1rem;
  font-size: 0.78rem;
  color: #888;
  border-top: 1px solid rgba(0,0,0,0.08);
}

/* ─── Utility ───────────────────────────────────────────────── */
.hidden { display: none !important; }

/* ─── Animations ─────────────────────────────────────────────── */

@keyframes tubeShake {
  0%   { transform: rotate(0deg); }
  15%  { transform: rotate(-5deg); }
  30%  { transform: rotate(5deg); }
  45%  { transform: rotate(-5deg); }
  60%  { transform: rotate(5deg); }
  75%  { transform: rotate(-3deg); }
  90%  { transform: rotate(3deg); }
  100% { transform: rotate(0deg); }
}

@keyframes stickRise {
  0%   { transform: translateY(50px); }
  100% { transform: translateY(-15px); }
}

@keyframes screenExit {
  0%   { opacity: 1; transform: translateY(0) scale(1); }
  100% { opacity: 0; transform: translateY(-40px) scale(0.96); }
}

@keyframes screenEnter {
  0%   { opacity: 0; transform: translateY(30px); }
  100% { opacity: 1; transform: translateY(0); }
}

@keyframes slipAppear {
  0%   { opacity: 0; transform: scaleY(0.6) translateY(20px); transform-origin: top; }
  100% { opacity: 1; transform: scaleY(1) translateY(0); }
}

.tube-container.shaking {
  animation: tubeShake 0.7s ease-in-out;
}

#stick-group.rising {
  animation: stickRise 0.6s ease-out forwards;
}

#draw-screen.exiting {
  animation: screenExit 0.4s ease-in forwards;
  pointer-events: none;
}

#result-screen.entering {
  display: flex !important;
  animation: screenEnter 0.5s ease-out forwards;
}

.omikuji-slip.appearing {
  animation: slipAppear 0.5s ease-out forwards;
}