/* ── Sky flavor tokens ─────────────────────────────────────────── */
:root {
  --sk-bg:     #e8f4ff;
  --sk-border: #b0d4f8;
  --sk-text:   #185890;
  --sk-mid:    #2272c0;
  --sk-dark:   #0a2a50;
  --fl-bg:     var(--sk-bg);
  --fl-border: var(--sk-border);
  --fl-text:   var(--sk-text);
}

/* ── Hero ──────────────────────────────────────────────────────── */
.app-hero {
  border-bottom: 1px solid var(--color-border);
  padding: 1.25rem 1.5rem 1.1rem;
}
.app-hero--sky {
  background: var(--sk-bg);
  border-bottom-color: var(--sk-border);
}
.app-hero__inner { margin: 0 auto; }
.app-hero__title {
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 800;
  color: var(--sk-text);
  letter-spacing: -.02em;
  margin: 0 0 .5rem;
  line-height: 1.2;
}
.app-hero__desc {
  font-size: .9rem;
  color: var(--color-text-secondary);
  max-width: 660px;
  line-height: 1.6;
  margin: 0 0 .85rem;
}
.app-hero__chips { display: flex; flex-wrap: wrap; gap: .35rem; }
.hero-chip {
  display: inline-flex;
  align-items: center;
  padding: .22rem .65rem;
  font-size: .72rem;
  font-weight: 700;
  background: var(--color-surface);
  border: 1.5px solid var(--sk-border);
  border-radius: var(--radius-full);
  color: var(--sk-text);
  white-space: nowrap;
}

/* ── App layout ────────────────────────────────────────────────── */
.app-wrap {
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
  padding: 1.5rem 0 3rem;
}

.pane-in {
  width: 300px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.pane-out {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* ── Cards ─────────────────────────────────────────────────────── */
.card {
  background: var(--color-surface);
  border: 1px solid var(--sk-border);
  border-radius: var(--radius-xl);
  padding: 1rem 1.125rem;
}

.card-title {
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--sk-text);
  margin: 0 0 .75rem;
}

.field { margin-bottom: .7rem; }
.field:last-child { margin-bottom: 0; }

label.lbl {
  display: block;
  font-size: .72rem;
  font-weight: 600;
  color: var(--color-text-muted);
  margin-bottom: .28rem;
}

select.sel, input.num-in {
  width: 100%;
  box-sizing: border-box;
  padding: .4rem .6rem;
  font-size: .8rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  color: var(--color-text-primary);
  transition: border-color .15s;
}
select.sel:focus, input.num-in:focus {
  outline: none;
  border-color: var(--sk-mid);
}

/* ── Unit toggle ───────────────────────────────────────────────── */
.unit-toggle {
  display: flex;
  border: 1.5px solid var(--sk-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: .55rem;
}
.unit-btn {
  flex: 1;
  padding: .3rem .5rem;
  font-size: .75rem;
  font-weight: 600;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-text-muted);
  transition: background .15s, color .15s;
}
.unit-btn.active {
  background: var(--sk-bg);
  color: var(--sk-text);
}

/* ── Result hero ───────────────────────────────────────────────── */
.result-hero {
  display: flex;
  gap: 1.5rem;
  align-items: center;
  background: var(--sk-bg);
  border: 1px solid var(--sk-border);
  border-radius: var(--radius-xl);
  padding: 1.5rem;
}

#soh-gauge { flex-shrink: 0; }

.stats-col {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: .6rem;
}

.stat-cell {
  background: var(--color-surface);
  border: 1px solid var(--sk-border);
  border-radius: var(--radius-md);
  padding: .5rem .6rem;
  text-align: center;
}
.stat-lbl { font-size: .62rem; font-weight: 600; text-transform: uppercase; letter-spacing: .06em; color: var(--color-text-muted); margin-bottom: .2rem; }
.stat-val { font-size: 1.25rem; font-weight: 800; color: var(--sk-dark); line-height: 1; }

/* ── Projection cards ──────────────────────────────────────────── */
.proj-row {
  display: flex;
  gap: .7rem;
}
.proj-card {
  flex: 1;
  background: var(--color-surface);
  border: 1px solid var(--sk-border);
  border-radius: var(--radius-md);
  padding: .75rem .8rem;
  text-align: center;
}
.proj-year { font-size: .65rem; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; color: var(--color-text-muted); margin-bottom: .3rem; }
.proj-soh { font-size: 1.6rem; font-weight: 900; line-height: 1; margin-bottom: .2rem; }
.proj-range { font-size: 1rem; font-weight: 700; color: var(--sk-dark); }
.proj-sub { font-size: .68rem; color: var(--color-text-muted); margin-top: .15rem; }

/* ── Context block ─────────────────────────────────────────────── */
.ctx-intro { font-size: .82rem; color: var(--color-text-secondary); line-height: 1.5; margin-bottom: .6rem; }
.ctx-list { display: flex; flex-direction: column; gap: .3rem; }
.ctx-row {
  display: grid;
  grid-template-columns: 1fr 68px 1fr;
  align-items: center;
  gap: .4rem;
  padding: .3rem .4rem;
  background: var(--sk-bg);
  border-radius: var(--radius-sm);
  font-size: .78rem;
}
.ctx-name { font-weight: 600; color: var(--color-text-secondary); }
.ctx-rate { font-weight: 700; color: var(--sk-text); text-align: center; }
.ctx-diff { color: var(--color-text-muted); font-size: .74rem; }

@media (max-width: 820px) {
  .app-wrap { flex-direction: column; }
  .pane-in { width: 100%; }
  .result-hero { flex-direction: column; align-items: center; }
  .stats-col { grid-template-columns: repeat(3, 1fr); }
  .ctx-row { grid-template-columns: 1fr 60px 1fr; }
}