/* PANEL component library (.we-*). Requires tokens.css + base.css. */

/* --- buttons ------------------------------------------------------------ */

.we-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  font: inherit;
  font-weight: 550;
  font-size: var(--we-text-sm);
  line-height: 1.2;
  color: var(--we-text);
  background: var(--we-surface);
  border: 1px solid var(--we-border-strong);
  border-radius: var(--we-radius-sm);
  padding: 0.5rem 0.95rem;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  box-shadow: var(--we-shadow-sm);
  transition: background var(--we-transition), border-color var(--we-transition),
    color var(--we-transition), box-shadow var(--we-transition),
    transform var(--we-transition);
}
.we-btn:hover:not(:disabled) {
  background: var(--we-surface-2);
  color: var(--we-text);
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: var(--we-shadow-md);
}
.we-btn:active:not(:disabled) {
  transform: translateY(0);
  box-shadow: var(--we-shadow-sm);
}

.we-btn-primary {
  color: var(--we-primary-contrast);
  background: var(--we-primary);
  background-image: var(--we-primary-gradient);
  border-color: transparent;
}
.we-btn-primary:hover:not(:disabled) {
  color: var(--we-primary-contrast);
  background: var(--we-primary-hover);
  border-color: transparent;
  box-shadow: var(--we-shadow-md), 0 0 0 1px var(--we-primary-glow);
}

.we-icon {
  width: 1.05em;
  height: 1.05em;
  flex: none;
  vertical-align: -0.15em;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.we-btn-danger {
  color: var(--we-danger);
  background: transparent;
  border-color: color-mix(in srgb, var(--we-danger) 45%, var(--we-border));
}
.we-btn-danger:hover:not(:disabled) {
  color: var(--we-danger);
  background: var(--we-danger-soft);
  border-color: var(--we-danger);
}

.we-btn-ghost {
  background: transparent;
  border-color: transparent;
  color: var(--we-text-muted);
}
.we-btn-ghost:hover:not(:disabled) {
  background: var(--we-surface-2);
  color: var(--we-text);
}

.we-btn-sm {
  padding: 0.25rem 0.6rem;
  font-size: var(--we-text-xs);
}
.we-btn-lg {
  padding: 0.65rem 1.4rem;
  font-size: var(--we-text-base);
}

.we-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--we-space-2);
  margin-block: var(--we-space-4);
}

/* --- cards -------------------------------------------------------------- */

.we-card {
  background: var(--we-surface);
  border: 1px solid var(--we-border);
  border-radius: var(--we-radius-lg);
  box-shadow: var(--we-shadow-sm);
  padding: var(--we-space-5);
  margin-bottom: var(--we-space-5);
  transition: box-shadow var(--we-transition), transform var(--we-transition),
    border-color var(--we-transition);
}
/* Interactive cards (links / rows) lift on hover as a house style. */
a.we-card:hover,
.we-card-hover:hover {
  transform: translateY(-2px);
  box-shadow: var(--we-shadow-md);
  border-color: var(--we-primary-border);
}
.we-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--we-space-3);
  flex-wrap: wrap;
  margin-bottom: var(--we-space-4);
}
.we-card-header h2,
.we-card-header h3 {
  margin: 0;
}
.we-card-footer {
  border-top: 1px solid var(--we-border);
  margin-top: var(--we-space-4);
  padding-top: var(--we-space-4);
}

.we-narrow {
  max-width: 30rem;
  margin-inline: auto;
  margin-block: var(--we-space-6);
}

/* --- tables ------------------------------------------------------------- */

.we-table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin-bottom: var(--we-space-4);
}
.we-table-scroll > table {
  min-width: 100%;
}
.we-table tbody tr:hover {
  background: color-mix(in srgb, var(--we-surface-2) 55%, transparent);
}

/* --- badges ------------------------------------------------------------- */

.we-badge {
  display: inline-block;
  font-size: var(--we-text-xs);
  font-weight: 600;
  line-height: 1;
  padding: 0.28em 0.65em;
  border-radius: var(--we-radius-full);
  background: var(--we-surface-2);
  color: var(--we-text-muted);
  border: 1px solid var(--we-border);
  vertical-align: middle;
  white-space: nowrap;
}
.we-badge-accent {
  background: var(--we-primary-soft);
  color: var(--we-primary);
  border-color: var(--we-primary-border);
}
.we-badge-draft { /* neutral default */ }
.we-badge-test {
  background: var(--we-warning-soft);
  color: var(--we-warning);
  border-color: color-mix(in srgb, var(--we-warning) 35%, var(--we-border));
}
.we-badge-active {
  background: var(--we-success-soft);
  color: var(--we-success);
  border-color: color-mix(in srgb, var(--we-success) 35%, var(--we-border));
}
.we-badge-closed {
  background: var(--we-surface-2);
  color: var(--we-text-faint);
  border-color: var(--we-border);
}

/* --- alerts / messages --------------------------------------------------- */

.we-alert {
  display: block;
  padding: var(--we-space-3) var(--we-space-4);
  border: 1px solid var(--we-border);
  border-left-width: 4px;
  border-radius: var(--we-radius-sm);
  background: var(--we-surface);
  margin-bottom: var(--we-space-4);
  font-size: var(--we-text-sm);
}
.we-alert > :last-child {
  margin-bottom: 0;
}
.we-alert-error {
  border-left-color: var(--we-danger);
  background: var(--we-danger-soft);
}
.we-alert-success {
  border-left-color: var(--we-success);
  background: var(--we-success-soft);
}
.we-alert-warning {
  border-left-color: var(--we-warning);
  background: var(--we-warning-soft);
}
.we-alert-info {
  border-left-color: var(--we-primary);
  background: var(--we-primary-soft);
}

/* --- subnav (study tabs) ------------------------------------------------- */

.we-subnav {
  display: flex;
  align-items: center;
  gap: var(--we-space-2);
  flex-wrap: wrap;
  border-bottom: 1px solid var(--we-border);
  margin-bottom: var(--we-space-5);
  background: var(--we-surface);
  /* full-width bar whose content aligns with the centered main column */
  padding-inline: max(var(--we-space-4), calc((100% - 72rem) / 2));
}
.we-subnav-title {
  display: flex;
  align-items: center;
  gap: var(--we-space-2);
  font-weight: 600;
  margin-right: var(--we-space-4);
  padding-block: var(--we-space-2);
}
.we-subnav a:not(.we-subnav-title a) {
  text-decoration: none;
}
.we-subnav-tab {
  display: inline-block;
  padding: var(--we-space-2) var(--we-space-3);
  margin-bottom: -1px;
  font-size: var(--we-text-sm);
  color: var(--we-text-muted);
  text-decoration: none;
  border-bottom: 2px solid transparent;
}
.we-subnav-tab:hover {
  color: var(--we-text);
  text-decoration: none;
}
.we-subnav-tab[aria-current="page"] {
  color: var(--we-primary);
  border-bottom-color: var(--we-primary);
  font-weight: 600;
}

/* --- progress + steps (participant header) ------------------------------- */

.we-progress {
  width: 100%;
  height: 6px;
  background: var(--we-surface-2);
  overflow: hidden;
}
.we-progress-fill {
  height: 100%;
  background: var(--we-primary);
  background-image: var(--we-primary-gradient);
  border-radius: 0 var(--we-radius-full) var(--we-radius-full) 0;
  box-shadow: 0 0 8px var(--we-primary-glow);
  transition: width 0.4s var(--we-ease);
}
.we-steps {
  display: flex;
  align-items: baseline;
  gap: var(--we-space-2);
  font-size: var(--we-text-sm);
  color: var(--we-text-muted);
  white-space: nowrap;
}
.we-page-count {
  color: var(--we-text-faint);
  font-variant-numeric: tabular-nums;
}

/* --- empty states -------------------------------------------------------- */

.we-empty {
  text-align: center;
  color: var(--we-text-muted);
  padding: var(--we-space-7) var(--we-space-4);
  border: 1px dashed var(--we-border-strong);
  border-radius: var(--we-radius-md);
  margin-bottom: var(--we-space-5);
}
.we-empty p {
  margin-bottom: var(--we-space-3);
}

/* --- disclosures / secrets ------------------------------------------------ */

.we-disclosure {
  border: 1px solid var(--we-border);
  border-radius: var(--we-radius-sm);
  padding: var(--we-space-2) var(--we-space-3);
  background: var(--we-surface);
}
.we-disclosure[open] {
  padding-bottom: var(--we-space-3);
}
.we-disclosure summary {
  font-size: var(--we-text-sm);
  color: var(--we-text-muted);
}
.we-secret code {
  user-select: all;
}

/* --- field partial -------------------------------------------------------- */

.we-field {
  margin-bottom: var(--we-space-4);
}
.we-help {
  font-size: var(--we-text-sm);
  color: var(--we-text-muted);
  margin: var(--we-space-1) 0 0;
}
.we-error {
  font-size: var(--we-text-sm);
  color: var(--we-danger);
  margin: var(--we-space-1) 0 0;
}
.we-field-error input,
.we-field-error select,
.we-field-error textarea {
  border-color: var(--we-danger);
}

/* --- utilities ------------------------------------------------------------ */

.we-muted {
  color: var(--we-text-muted);
}
.we-mono {
  font-family: var(--we-font-mono);
}

.we-visually-hidden,
.we-visually-hidden-focusable:not(:focus):not(:focus-within) {
  position: absolute !important;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}
.we-visually-hidden-focusable:focus {
  position: fixed !important;
  top: var(--we-space-3);
  left: var(--we-space-3);
  z-index: calc(var(--we-z-nav) + 1);
  width: auto;
  height: auto;
  padding: var(--we-space-2) var(--we-space-4);
  background: var(--we-surface);
  border: 2px solid var(--we-primary);
  border-radius: var(--we-radius-sm);
  clip-path: none;
}

.we-danger-zone {
  border-top: 1px solid color-mix(in srgb, var(--we-danger) 30%, var(--we-border));
  margin-top: var(--we-space-6);
  padding-top: var(--we-space-4);
}
.we-danger-zone h3 {
  color: var(--we-danger);
  font-size: var(--we-text-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* --- brand monogram ------------------------------------------------------- */

.we-brandmark {
  display: inline-flex;
  align-items: center;
  gap: var(--we-space-2);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--we-text);
  text-decoration: none;
}
.we-brandmark:hover {
  color: var(--we-text);
  text-decoration: none;
}
.we-brandmark-chip {
  display: inline-grid;
  place-items: center;
  width: 1.6rem;
  height: 1.6rem;
  border-radius: 7px;
  background: var(--we-primary);
  background-image: var(--we-primary-gradient);
  color: var(--we-primary-contrast);
  font-weight: 800;
  font-size: 0.95rem;
  box-shadow: var(--we-shadow-sm), inset 0 1px 0 rgb(255 255 255 / 0.25);
}
.we-brandmark-logo {
  background: #0b1220;
  background-image: none;
  object-fit: cover;
  box-shadow: var(--we-shadow-sm);
}

/* --- KPI stat tiles ------------------------------------------------------- */

.we-stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(9rem, 1fr));
  gap: var(--we-space-3);
  margin-bottom: var(--we-space-5);
}
.we-stat {
  background: var(--we-surface);
  border: 1px solid var(--we-border);
  border-radius: var(--we-radius-md);
  box-shadow: var(--we-shadow-sm);
  padding: var(--we-space-4);
}
.we-stat-value {
  font-size: var(--we-text-3xl);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
  color: var(--we-text);
}
.we-stat-label {
  margin-top: var(--we-space-1);
  font-size: var(--we-text-sm);
  color: var(--we-text-muted);
}
.we-stat-accent {
  background: var(--we-primary-soft);
  border-color: var(--we-primary-border);
}
.we-stat-accent .we-stat-value {
  color: var(--we-primary);
}

/* --- trust chips (participant consent) ------------------------------------ */

.we-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--we-space-2);
  margin: var(--we-space-4) 0;
}
.we-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.7rem;
  font-size: var(--we-text-sm);
  color: var(--we-text-muted);
  background: var(--we-surface-2);
  border: 1px solid var(--we-border);
  border-radius: var(--we-radius-full);
}