/* ═══════════════════════════════════════════
   SH2 READER — journal grid, reader modal + studio
   tools, DNA strip, holo-flip overlay. Token-driven,
   both polarities, mobile-first.
   ═══════════════════════════════════════════ */

/* ── journal grid ── */
.journal-lede {
  max-width: 56ch;
  font-size: clamp(0.95rem, 1.5vw, 1.1rem);
  line-height: 1.6;
  color: var(--ink-1);
}
.journal-lede b { color: var(--accent); }
.mono-note { font-family: var(--font-mono); font-size: 0.72em; letter-spacing: 0.08em; color: var(--ink-2); }

.journal-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: clamp(12px, 1.6vw, 22px);
  margin-top: clamp(24px, 4vh, 44px);
}
.journal-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-height: 210px;
  padding: clamp(18px, 2.4vw, 28px);
  border-radius: var(--radius-m);
  border: 1px solid transparent;
  color: var(--uni-ink);
  cursor: pointer;
  transition: transform 0.3s var(--ease-out), box-shadow 0.3s ease;
}
.journal-card:hover, .journal-card:focus-visible {
  transform: translateY(-5px) rotate(-0.4deg);
  box-shadow: var(--shadow-lift);
  outline: none;
}
.jc--red { background: var(--uni-red); }
.jc--amber { background: var(--uni-amber); }
.jc--green { background: var(--uni-green); }
.jc--blue { background: var(--uni-blue); color: #f4f4f5; }
.jc--dark { background: #131318; color: #f4f4f5; border-color: #26262c; }
.jc--dark2 { background: #1c1420; color: #f4f4f5; border-color: #2e2434; }

.jc-tag { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.2em; opacity: 0.75; }
.jc-title {
  margin: 0;
  font-family: var(--font-grotesk);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.05;
  font-size: clamp(1.25rem, 2.2vw, 1.7rem);
}
.jc-teaser { margin: 0; font-size: 0.88rem; line-height: 1.45; opacity: 0.85; }
.jc-open {
  margin-top: auto;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  transition: transform 0.25s var(--ease-out);
}
.journal-card:hover .jc-open { transform: translateX(6px); }

/* ── reader modal ── */
.reader-modal {
  position: fixed; inset: 0; z-index: 140;
  display: grid; place-items: center;
  opacity: 0; visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s;
}
.reader-modal.is-open { opacity: 1; visibility: visible; }
.reader-modal__backdrop {
  position: absolute; inset: 0;
  background: color-mix(in srgb, var(--bg-0) 40%, rgba(0, 0, 0, 0.5));
  backdrop-filter: blur(8px);
}
.reader-modal__sheet {
  position: relative;
  width: min(92vw, 760px);
  max-height: 86vh;
  overflow: hidden;
  border-radius: var(--radius-l);
  border: 1px solid var(--line);
  background: var(--surface, var(--bg-1));
  box-shadow: var(--shadow-lift);
  transform: translateY(16px) scale(0.98);
  transition: transform 0.4s var(--ease-spring);
  display: flex;
  flex-direction: column;
}
.reader-modal.is-open .reader-modal__sheet { transform: none; }

/* paint canvas covers the WHOLE sheet (tweets cm-canvas idiom) */
.reader-canvas {
  position: absolute; inset: 0; z-index: 3;
  width: 100%; height: 100%;
  pointer-events: none;
}
.reader-modal.is-armed .reader-canvas {
  pointer-events: auto;
  cursor: crosshair;
  /* without this, a touch-drag is first read as a page-scroll gesture and
     the pointer stroke never lands — you "can't paint" on mobile */
  touch-action: none;
}

.reader-modal__close {
  position: absolute; top: 14px; right: 14px; z-index: 5;
  width: 36px; height: 36px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--bg-0);
  color: var(--ink-0);
  cursor: pointer;
  font-size: 0.9rem;
}
.reader-modal__close:hover { border-color: var(--accent); color: var(--accent); }

.reader-modal__paper {
  padding: clamp(24px, 4vw, 44px);
  overflow-y: auto;
  overscroll-behavior: contain;
  flex: 1;
}
.reader-tag { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.22em; color: var(--accent); }
.reader-title {
  margin: 8px 0 16px;
  font-family: var(--font-grotesk);
  font-weight: 800;
  letter-spacing: -0.02em;
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  color: var(--ink-0);
}
.reader-body p {
  margin: 0 0 1em;
  font-size: clamp(0.98rem, 1.5vw, 1.08rem);
  line-height: 1.7;
  color: var(--ink-1);
}
.reader-hint {
  margin-top: 18px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.06em;
  color: var(--ink-2);
}
mark.reader-mark {
  background: color-mix(in srgb, var(--accent) 28%, transparent);
  color: inherit;
  border-radius: 2px;
  padding: 0 2px;
  cursor: pointer;
  box-shadow: 0 1px 0 var(--accent);
}
mark.reader-mark:hover { background: color-mix(in srgb, var(--accent-2) 30%, transparent); }

/* ── studio toolbar (tweets studio__tools pill) ── */
.studio-bar {
  position: relative; z-index: 4;
  display: flex; align-items: center; gap: 4px;
  align-self: center;
  margin: 0 0 16px;
  padding: 5px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--ink-0) 5%, var(--bg-0));
}
.studio-tool {
  display: grid; place-items: center;
  width: 38px; height: 38px;
  border: 0; border-radius: 999px;
  background: transparent;
  color: var(--ink-1);
  cursor: pointer;
  transition: transform 0.2s var(--ease-out), background 0.2s ease;
}
.studio-tool:hover { transform: translateY(-2px); color: var(--ink-0); }
.studio-tool.is-active { background: var(--ink-0); color: var(--bg-0); }
.studio-tool--clear {
  width: auto; padding: 0 14px;
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.14em;
}
.studio-sep { width: 1px; height: 20px; background: var(--line); margin: 0 4px; }
.st-dot { width: 14px; height: 14px; border-radius: 999px; display: block; }
.st-dot--marker { background: var(--accent); opacity: 0.55; height: 10px; width: 18px; border-radius: 4px; }
.st-dot--liner { background: var(--accent-2); width: 4px; }
.st-dot--spray {
  background: radial-gradient(circle, var(--accent) 20%, transparent 21%),
              radial-gradient(circle at 70% 30%, var(--accent) 12%, transparent 13%),
              radial-gradient(circle at 30% 72%, var(--accent) 12%, transparent 13%);
}
.st-dot--eraser { background: transparent; border: 1.5px solid currentColor; border-radius: 3px; }

/* ── DNA strip ── */
.dna-strip-wrap { margin-top: clamp(36px, 6vh, 64px); }
.dna-empty { font-family: var(--font-mono); font-size: 11.5px; letter-spacing: 0.04em; color: var(--ink-2); }
.dna-strip { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.dna-chip {
  display: inline-flex; align-items: center; gap: 8px;
  max-width: 100%;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink-1);
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 0.85rem;
  cursor: pointer;
  text-align: left;
  transition: transform 0.2s var(--ease-out), border-color 0.2s ease;
}
.dna-chip:hover { transform: translateY(-2px); border-color: var(--accent); }
.dna-chip__tag {
  font-family: var(--font-mono); font-style: normal;
  font-size: 9px; letter-spacing: 0.16em;
  color: var(--accent);
  white-space: nowrap;
}
.dna-chip--paint { border-style: dashed; }
.dna-clear {
  margin-top: 14px;
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.14em;
  background: none; border: 1px solid var(--line); border-radius: 999px;
  padding: 6px 14px; color: var(--ink-2); cursor: pointer;
}
.dna-clear:hover { color: var(--accent-2); border-color: var(--accent-2); }

/* ── holo flip overlay ── */
.holo-flip-overlay { position: fixed; inset: 0; z-index: 150; display: grid; place-items: center; }
.hf-backdrop {
  position: absolute; inset: 0;
  background: rgba(5, 5, 8, 0.6);
  backdrop-filter: blur(10px);
  opacity: 0; transition: opacity 0.35s ease;
}
.holo-flip-overlay.is-flipped .hf-backdrop { opacity: 1; }
.hf-card {
  position: relative;
  width: min(88vw, 420px);
  aspect-ratio: 3 / 4;
  transform-style: preserve-3d;
  transform: scale(0.7);
  transition: transform 0.55s var(--ease-spring);
}
.holo-flip-overlay.is-flipped .hf-card { transform: scale(1) rotateY(180deg); }
.hf-face {
  position: absolute; inset: 0;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  border-radius: var(--radius-m);
  border: 1px solid var(--line);
  overflow: hidden;
  display: flex; flex-direction: column; justify-content: flex-end;
  padding: 22px;
}
.hf-face--front { background: var(--surface, #f4f4f4); color: var(--ink-0); }
.hf-face--front img { position: absolute; inset: 0; width: 100%; height: 72%; object-fit: cover; }
.hf-face--front h3 { position: relative; margin: 0; font-family: var(--font-grotesk); font-weight: 800; }
.hf-face--front p { position: relative; margin: 4px 0 0; font-family: var(--font-mono); font-size: 10.5px; color: var(--ink-2); }
.hf-face--back {
  transform: rotateY(180deg);
  background: #0b0b0e; color: #d8ffe8;
  justify-content: flex-start; gap: 14px;
  font-family: var(--font-mono);
}
.hf-term-head { font-size: 10px; letter-spacing: 0.1em; color: #6a6a74; display: flex; gap: 6px; }
.hf-term-head span { color: #3a3a44; }
.hf-term { margin: 0; font-size: 11.5px; line-height: 1.8; white-space: pre-wrap; color: #9be8b8; }
.hf-spark { width: 130px; color: var(--accent-soft); }
.hf-note { margin: 0; font-size: 10px; color: #6a6a74; }
.hf-close {
  margin-top: auto; align-self: flex-start;
  background: none; border: 1px solid #2c2c34; border-radius: 999px;
  color: #f4f4f5; font-family: var(--font-mono); font-size: 10px;
  letter-spacing: 0.16em; padding: 8px 16px; cursor: pointer;
}
.hf-close:hover { border-color: var(--accent-soft); color: var(--accent-soft); }

/* ── mobile ── */
@media (max-width: 720px) {
  .reader-modal__sheet { width: 100vw; height: 100dvh; max-height: none; border-radius: 0; }
  .studio-bar { position: sticky; bottom: 10px; }
}