/* ============================================================
   Atomify · v2 · bio (page)
   ------------------------------------------------------------
   DNA / RNA conversion. Relies on core.css + components.css.
   ============================================================ */

/* ─── 1 · Form layout ───────────────────────────────── */
.bio-form { display: block; }

.bio-form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

/* Field variant: tall, monospace textarea */
.field--bio {
  align-items: stretch;
  min-height: 0;
}
.field--bio .field-input {
  font-family: var(--font-mono);
  font-variation-settings: normal;
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  line-height: 1.55;
  padding: 1rem 1.4rem;
  padding-right: 3rem;
  resize: vertical;
  min-height: 140px;
  display: block;
  width: 100%;
}
.field--bio .field-clear {
  top: 10px;
  transform: none;
}

.bio-form-aux {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 14px;
  flex-wrap: wrap;
}
.bio-hint {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  color: var(--ink-muted);
}
.bio-hint .nt-a { color: var(--green-deep); }
.bio-hint .nt-t { color: var(--amber); }
.bio-hint .nt-g { color: var(--cobalt); }
.bio-hint .nt-c { color: var(--gold); }
[data-theme="dark"] .bio-hint .nt-a,
body.dark-mode .bio-hint .nt-a { color: var(--green); }
[data-theme="dark"] .bio-hint .nt-g,
body.dark-mode .bio-hint .nt-g { color: var(--cobalt); }
[data-theme="dark"] .bio-hint .nt-c,
body.dark-mode .bio-hint .nt-c { color: var(--gold-bright); }

.bio-form-actions {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

@media (max-width: 540px) {
  .bio-form-aux { flex-direction: column; align-items: flex-start; }
}

/* ─── 2 · Specimen library ──────────────────────────── */
.bio-examples {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  border: 1px solid var(--line);
  border-radius: var(--r-3);
  overflow: hidden;
  background: var(--paper-2);
}
.bio-example {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  padding: 1.15rem 1.2rem 1rem;
  min-height: 148px;
  background: var(--paper-2);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  cursor: pointer;
  text-align: left;
  font-family: inherit;
  color: inherit;
  margin: 0;
  transition: background-color 180ms ease, transform 120ms var(--ease-soft);
}
.bio-example:hover { background: var(--paper); z-index: 2; }
.bio-example:active { transform: translateY(1px); }
.bio-example:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: -2px;
  z-index: 3;
}
.bio-example-num {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.12em;
  color: var(--ink-muted);
  text-transform: uppercase;
}
.bio-example-seq {
  font-family: var(--font-mono);
  font-size: 0.92rem;
  color: var(--ink);
  word-break: break-all;
  line-height: 1.35;
  letter-spacing: 0.06em;
}
.bio-example-name {
  font-family: var(--font-body);
  font-size: 0.82rem;
  color: var(--ink-soft);
  line-height: 1.3;
  margin-top: auto;
}

/* ─── 3 · Result panel ─────────────────────────────── */
.bio-panel {
  margin-top: 1.5rem;
  border: 1px solid var(--line);
  border-radius: var(--r-4);
  background: var(--paper-2);
  overflow: hidden;
  animation: result-rise 0.5s var(--ease-out) both;
}
@keyframes result-rise {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.bio-panel-head {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1.5rem;
  padding: 1.4rem 1.75rem;
  border-bottom: 1px solid var(--line);
  align-items: end;
}
.bio-panel-head .label-mono { display: block; margin-bottom: 0.5rem; }
.bio-panel-title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.4rem, 2.6vw, 2rem);
  letter-spacing: -0.02em;
  line-height: 1;
  color: var(--ink);
}
.bio-panel-meta {
  text-align: right;
  white-space: nowrap;
}
.bio-panel-meta .num {
  font-family: var(--font-mono);
  font-feature-settings: "tnum";
  font-weight: 500;
  font-size: clamp(1.4rem, 2.6vw, 2rem);
  letter-spacing: -0.02em;
  color: var(--green-deep);
  line-height: 1;
}
[data-theme="dark"] .bio-panel-meta .num,
body.dark-mode .bio-panel-meta .num { color: var(--green); }
.bio-panel-meta-unit {
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: var(--ink-muted);
  margin-left: 0.4rem;
}
@media (max-width: 720px) {
  .bio-panel-head { grid-template-columns: 1fr; }
  .bio-panel-meta { text-align: left; }
}

/* Toolbar */
.bio-panel-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 1.75rem;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
  flex-wrap: wrap;
}
.bio-toolbar-meta {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-muted);
}
.bio-copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.55rem 0.9rem;
  border-radius: var(--r-2);
  border: 1px solid var(--line-strong);
  background: var(--paper-2);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background-color 150ms, border-color 150ms, color 150ms;
}
.bio-copy-btn svg { width: 14px; height: 14px; }
.bio-copy-btn:hover {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}
[data-theme="dark"] .bio-copy-btn:hover,
body.dark-mode .bio-copy-btn:hover {
  background: var(--green);
  color: #0B1220;
  border-color: var(--green);
}
.bio-copy-btn.is-copied {
  background: var(--green-tint);
  color: var(--green-deep);
  border-color: transparent;
}
[data-theme="dark"] .bio-copy-btn.is-copied,
body.dark-mode .bio-copy-btn.is-copied { color: var(--green); }

/* ─── 4 · Sequence rows ─────────────────────────────── */
.bio-sequences {
  display: grid;
  grid-template-columns: 1fr;
}
.bio-seq-row {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 1.5rem;
  padding: 1rem 1.75rem;
  border-bottom: 1px solid var(--line-soft);
  align-items: baseline;
}
.bio-seq-row:last-child { border-bottom: 0; }
.bio-seq-row--alt { background: var(--paper); }

.bio-seq-label {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  min-width: 0;
}
.bio-seq-label-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-muted);
}
.bio-seq-label-name {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1rem;
  letter-spacing: -0.005em;
  color: var(--ink);
  line-height: 1.2;
}

.bio-seq {
  font-family: var(--font-mono);
  font-size: 0.94rem;
  letter-spacing: 0.06em;
  line-height: 1.5;
  color: var(--ink);
  word-break: break-all;
  font-feature-settings: "ss01";
}
.bio-seq .nt {
  display: inline-block;
  padding: 0 1px;
  border-radius: 2px;
}
.bio-seq .nt-a { color: var(--green-deep); }
.bio-seq .nt-t { color: var(--amber); }
.bio-seq .nt-u { color: var(--amber); }
.bio-seq .nt-g { color: var(--cobalt); }
.bio-seq .nt-c { color: var(--gold); }
[data-theme="dark"] .bio-seq .nt-a,
body.dark-mode .bio-seq .nt-a { color: var(--green); }
[data-theme="dark"] .bio-seq .nt-g,
body.dark-mode .bio-seq .nt-g { color: var(--cobalt); }
[data-theme="dark"] .bio-seq .nt-c,
body.dark-mode .bio-seq .nt-c { color: var(--gold-bright); }

/* Section heading between groups (DNA / ARN / etc) */
.bio-seq-divider {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.7rem 1.75rem;
  background: var(--paper);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.bio-seq-divider::before,
.bio-seq-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--line-strong);
  max-width: 60px;
}
.bio-seq-divider-text {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

@media (max-width: 720px) {
  .bio-seq-row {
    grid-template-columns: 1fr;
    gap: 0.4rem;
    padding: 0.9rem 1.25rem;
  }
}

/* ─── 5 · Composition chart ──────────────────────────── */
.bio-composition {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 1px solid var(--line);
}
.bio-comp-cell {
  position: relative;
  padding: 1.1rem 1.25rem 1.25rem;
  border-right: 1px solid var(--line);
  background: var(--paper-2);
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}
.bio-comp-cell:last-child { border-right: 0; }
.bio-comp-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem;
}
.bio-comp-letter {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.4rem;
  letter-spacing: -0.02em;
  line-height: 1;
}
.bio-comp-letter.nt-a { color: var(--green-deep); }
.bio-comp-letter.nt-t { color: var(--amber); }
.bio-comp-letter.nt-g { color: var(--cobalt); }
.bio-comp-letter.nt-c { color: var(--gold); }
[data-theme="dark"] .bio-comp-letter.nt-a,
body.dark-mode .bio-comp-letter.nt-a { color: var(--green); }
[data-theme="dark"] .bio-comp-letter.nt-g,
body.dark-mode .bio-comp-letter.nt-g { color: var(--cobalt); }
[data-theme="dark"] .bio-comp-letter.nt-c,
body.dark-mode .bio-comp-letter.nt-c { color: var(--gold-bright); }

.bio-comp-count {
  font-family: var(--font-mono);
  font-feature-settings: "tnum";
  font-weight: 500;
  font-size: 1.1rem;
  color: var(--ink);
  line-height: 1;
}
.bio-comp-pct {
  font-family: var(--font-mono);
  font-feature-settings: "tnum";
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  color: var(--ink-muted);
}
.bio-comp-bar {
  height: 4px;
  background: var(--paper-3);
  border-radius: 2px;
  overflow: hidden;
}
.bio-comp-bar::after {
  content: '';
  display: block;
  height: 100%;
  width: var(--pct, 0%);
  border-radius: 2px;
  transition: width 600ms var(--ease-out);
}
.bio-comp-cell.nt-a .bio-comp-bar::after { background: linear-gradient(90deg, var(--green-deep), var(--green)); }
.bio-comp-cell.nt-t .bio-comp-bar::after { background: linear-gradient(90deg, var(--amber), var(--amber-bright)); }
.bio-comp-cell.nt-g .bio-comp-bar::after { background: linear-gradient(90deg, var(--cobalt), #6E94D6); }
.bio-comp-cell.nt-c .bio-comp-bar::after { background: linear-gradient(90deg, var(--gold), var(--gold-bright)); }
[data-theme="dark"] .bio-comp-cell.nt-a .bio-comp-bar::after,
body.dark-mode .bio-comp-cell.nt-a .bio-comp-bar::after { background: linear-gradient(90deg, var(--green), var(--green-bright)); }

@media (max-width: 720px) {
  .bio-composition { grid-template-columns: repeat(2, 1fr); }
  .bio-comp-cell:nth-child(2) { border-right: 0; }
  .bio-comp-cell:nth-child(1),
  .bio-comp-cell:nth-child(2) { border-bottom: 1px solid var(--line); }
}

/* ─── 6 · Toast (copy feedback) ─────────────────────── */
.bio-toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--ink);
  color: var(--paper);
  padding: 0.75rem 1.25rem;
  border-radius: var(--r-3);
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  pointer-events: none;
  transition: transform 280ms var(--ease-out), opacity 200ms ease;
  z-index: 9000;
}
.bio-toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}
[data-theme="dark"] .bio-toast,
body.dark-mode .bio-toast {
  background: var(--paper);
  color: var(--ink);
}