/* ───────────────────────────────────────────────
   Cards — Signals component
   ─────────────────────────────────────────────── */

/* ── Base card ─────────────────────────────────── */
.card-s {
  position: relative;
  background-color: var(--s-card-bg);
  border: 1px solid var(--s-card-border);
  border-radius: 12px;
  overflow: hidden;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

/* Top-edge glow — green accent shimmer */
.card-s::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 10%;
  right: 10%;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent 0%,
    oklab(0.799391 -0.205402 0.150181 / 0.45) 20%,
    oklab(0.799391 -0.205402 0.150181 / 0.7) 50%,
    oklab(0.799391 -0.205402 0.150181 / 0.45) 80%,
    transparent 100%
  );
  border-radius: 12px 12px 0 0;
  pointer-events: none;
  z-index: 1;
}

/* Softer glow bloom behind the edge line */
.card-s::after {
  content: "";
  position: absolute;
  top: -6px;
  left: 15%;
  right: 15%;
  height: 12px;
  background: radial-gradient(
    ellipse at 50% 100%,
    oklab(0.799391 -0.205402 0.150181 / 0.2) 0%,
    transparent 70%
  );
  pointer-events: none;
  z-index: 0;
}

/* Hover lift */
.card-s:hover {
  border-color: rgba(107, 114, 128, 0.35);
  box-shadow: 0 0 18px -4px oklab(0.799391 -0.205402 0.150181 / 0.08);
}

/* ── Card header ──────────────────────────────── */
.card-s-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  border-bottom: 1px solid var(--s-card-border);
  position: relative;
  z-index: 2;
}

.card-s-header-title {
  margin: 0;
  font-size: 0.925rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.92);
  letter-spacing: 0.01em;
}

.card-s-header-subtitle {
  margin: 2px 0 0;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.45);
}

/* ── Card body ────────────────────────────────── */
.card-s-body {
  padding: 18px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.875rem;
  line-height: 1.6;
  position: relative;
  z-index: 2;
}

/* ── Card footer ──────────────────────────────── */
.card-s-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  padding: 12px 18px;
  border-top: 1px solid var(--s-card-border);
  position: relative;
  z-index: 2;
}

.card-s-footer-text {
  margin: 0;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.4);
}

/* ── Collapsible / expandable card ────────────── */

/* Toggle button (chevron) in header */
.card-s-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  padding: 0;
  margin: 0;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(107, 114, 128, 0.18);
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.2s ease;
  flex-shrink: 0;
}

.card-s-toggle:hover {
  background: rgba(255, 255, 255, 0.08);
}

/* Chevron icon (pure CSS) */
.card-s-toggle .chevron {
  display: block;
  width: 10px;
  height: 10px;
  border-right: 2px solid rgba(255, 255, 255, 0.55);
  border-bottom: 2px solid rgba(255, 255, 255, 0.55);
  transform: rotate(45deg);
  margin-top: -3px;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* When collapsed, rotate chevron to point right */
.card-s.collapsed .card-s-toggle .chevron {
  transform: rotate(-45deg);
  margin-top: 0;
  margin-left: -2px;
}

/* Collapsible body wrapper */
.card-s-collapse {
  display: grid;
  grid-template-rows: 1fr;
  transition: grid-template-rows 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.card-s.collapsed .card-s-collapse {
  grid-template-rows: 0fr;
}

.card-s-collapse-inner {
  overflow: hidden;
}

/* Hide footer when collapsed */
.card-s.collapsed .card-s-footer {
  border-top-color: transparent;
  padding: 0 18px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease, border-top-color 0.3s ease;
}

.card-s:not(.collapsed) .card-s-footer {
  max-height: 80px;
  transition: max-height 0.35s ease, padding 0.35s ease, border-top-color 0.35s ease;
}

/* ── Clickable header for expand / collapse ───── */
.card-s-header.clickable {
  cursor: pointer;
  user-select: none;
}

.card-s-header.clickable:hover {
  background: rgba(255, 255, 255, 0.02);
}

/* ── Size variants ────────────────────────────── */
.card-s-sm .card-s-header { padding: 10px 14px; }
.card-s-sm .card-s-body   { padding: 14px; }
.card-s-sm .card-s-footer { padding: 10px 14px; }

.card-s-lg .card-s-header { padding: 18px 24px; }
.card-s-lg .card-s-body   { padding: 24px; }
.card-s-lg .card-s-footer { padding: 16px 24px; }

/* ── Card group (stacked cards) ───────────────── */
.card-s-group {
  display: flex;
  flex-direction: column;
  gap: 12px;
}