/* ══════════════════════════════════════════
   FLORET DESIGN SYSTEM — CASE STUDY STYLES
   ══════════════════════════════════════════ */

/* ── Hook colour override ── */
.cs-hook-floret {
  background: #0B1733;
}
.cs-hook-floret .cs-hook-eyebrow {
  color: #6C8BFF;
}
.cs-hook-floret .cs-hook-quote em {
  color: #6C8BFF;
}

/* ── Problem grid — 3-column sharp cards ── */
.fds-problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 8px;
}
.fds-problem-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 32px 28px;
  position: relative;
  overflow: hidden;
  transition: border-color 0.3s, transform 0.3s var(--transition);
}
.fds-problem-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-3px);
}
.fds-problem-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, #DC2626, #F97316);
}
.fds-problem-num {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: #DC2626;
  text-transform: uppercase;
  margin-bottom: 16px;
  display: block;
}
.fds-problem-title {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0 0 10px;
  color: var(--text);
}
.fds-problem-body {
  font-size: 14px;
  line-height: 1.65;
  color: var(--text-secondary);
  margin: 0;
}
@media (max-width: 800px) {
  .fds-problem-grid { grid-template-columns: 1fr; }
}

/* ── Three-Tier Token Architecture stack ── */
.fds-token-stack {
  max-width: 920px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 40px;
}
.fds-tier {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 28px 32px;
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 28px;
  align-items: center;
}
.fds-tier-head {
  border-right: 1px solid var(--border);
  padding-right: 28px;
}
.fds-tier-num {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.fds-tier-name {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text);
  margin: 4px 0 6px;
}
.fds-tier-sub {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.45;
  margin: 0;
}
.fds-tier-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

/* Token chips — monospaced with colour swatches */
.fds-chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: #F6F7FB;
  border: 1px solid #E4E7EF;
  border-radius: 999px;
  padding: 5px 12px 5px 8px;
  font-family: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
  font-size: 12px;
  color: var(--text);
  font-weight: 500;
}
.fds-chip-swatch {
  width: 13px;
  height: 13px;
  border-radius: 3px;
  border: 1px solid rgba(0,0,0,0.1);
  flex-shrink: 0;
}
.fds-tier-arrow {
  text-align: center;
  font-size: 18px;
  color: #6C8BFF;
  line-height: 1;
  margin: -2px 0;
}

@media (max-width: 720px) {
  .fds-tier { grid-template-columns: 1fr; gap: 16px; }
  .fds-tier-head { border-right: 0; border-bottom: 1px solid var(--border); padding-right: 0; padding-bottom: 16px; }
}

/* ── Variable table (dark, monospaced) ── */
.fds-var-table {
  border-radius: 12px;
  overflow: hidden;
  font-family: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
  font-size: 12px;
  color: #cfd8ee;
  background: #0F1E3F;
}
.fds-var-head {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  background: #0B1733;
  padding: 12px 20px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #6C8BFF;
}
.fds-var-row {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  padding: 11px 20px;
  border-top: 1px solid rgba(255,255,255,0.05);
  align-items: center;
}
.fds-var-row .val {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
.fds-var-row .sw {
  width: 12px; height: 12px;
  border-radius: 3px;
  border: 1px solid rgba(255,255,255,0.15);
}
@media (max-width: 600px) {
  .fds-var-head,
  .fds-var-row { grid-template-columns: 1fr 1fr; }
  .fds-var-row span:last-child,
  .fds-var-head span:last-child { display: none; }
}

/* ── Variant rail ── */
.fds-variant-rail {
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: #fff;
}
.fds-variant-title {
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 700;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-subtle);
}
.fds-variant-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0;
}
.fds-variant-cell {
  border-right: 1px solid var(--border);
  padding: 18px 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  background: #FAFBFD;
}
.fds-variant-cell:last-child { border-right: 0; }
.fds-variant-btn {
  padding: 7px 14px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 600;
  font-family: var(--font);
  border: none;
  cursor: default;
  white-space: nowrap;
}
.fds-variant-btn.primary  { background: #2D5BFF; color: #fff; }
.fds-variant-btn.secondary { background: #fff; color: #2D5BFF; border: 1.5px solid #2D5BFF; }
.fds-variant-btn.ghost    { background: transparent; color: #2D5BFF; border: 1.5px solid transparent; }
.fds-variant-btn.danger   { background: #DC2626; color: #fff; }
.fds-variant-btn.disabled { background: #E4E7EF; color: #9BA3B4; }
.fds-variant-btn.loading  { background: #2D5BFF; color: #fff; opacity: 0.65; }
.fds-variant-label {
  font-family: "JetBrains Mono", ui-monospace, Menlo, monospace;
  font-size: 10px;
  color: var(--text-muted);
  text-align: center;
}
@media (max-width: 760px) {
  .fds-variant-grid { grid-template-columns: repeat(3, 1fr); }
  .fds-variant-cell { border-bottom: 1px solid var(--border); }
}

/* ── Framed image sheet ── */
.fds-sheet {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  overflow: hidden;
  box-shadow: 0 16px 40px rgba(11,23,51,0.06);
}
.fds-sheet img {
  width: 100%;
  height: auto;
  display: block;
}
.fds-sheet-cap {
  padding: 12px 18px;
  font-size: 12px;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
  background: var(--bg-subtle);
  font-style: italic;
}

/* ── Component inventory grid ── */
.fds-inventory {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 8px;
}
.fds-inv-cell {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 12px;
  color: var(--text-secondary);
  font-weight: 500;
}
.fds-inv-cell.is-accent {
  background: #0B1733;
  color: #fff;
  border-color: #0B1733;
}
@media (max-width: 800px) {
  .fds-inventory { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 480px) {
  .fds-inventory { grid-template-columns: repeat(2, 1fr); }
}

/* ── Count row ── */
.fds-count-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  background: var(--bg-subtle);
  border-radius: var(--r);
}
.fds-count-num {
  font-size: 36px;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text);
  line-height: 1;
}
.fds-count-label {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 6px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-weight: 600;
}
@media (max-width: 600px) {
  .fds-count-row { grid-template-columns: repeat(2, 1fr); }
}