/* ============================================================
   Lens Components
   ============================================================ */

/* --- Buttons ---------------------------------------------- */
.lens-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--lens-space-sm);
  font-family: inherit;
  font-size: var(--lens-text-body);
  font-weight: 500;
  line-height: 1;
  border: none;
  border-radius: var(--lens-radius-md);
  padding: 12px 24px;
  transition: all var(--lens-motion-hover);
  white-space: nowrap;
  text-decoration: none;
}
.lens-btn:focus-visible {
  outline: none;
  box-shadow: var(--lens-shadow-focus);
}
.lens-btn[disabled], .lens-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.lens-btn--primary {
  background: var(--lens-color-brand);
  color: var(--lens-color-text-on-brand);
}
.lens-btn--primary:hover { background: var(--lens-color-brand-hover); text-decoration: none; }

.lens-btn--secondary {
  background: var(--lens-color-bg-card);
  color: var(--lens-color-brand);
  border: 1.5px solid var(--lens-color-brand);
  padding: 10.5px 22.5px;
}
.lens-btn--secondary:hover { background: var(--lens-color-brand-tint); text-decoration: none; }

.lens-btn--ghost {
  background: transparent;
  color: var(--lens-color-text-primary);
  padding: 10px 16px;
}
.lens-btn--ghost:hover { background: var(--lens-color-bg-hover); text-decoration: none; }

.lens-btn--danger {
  background: var(--lens-color-danger);
  color: #fff;
}
.lens-btn--danger:hover { background: #c9434f; text-decoration: none; }

.lens-btn--sm { padding: 8px 16px; font-size: var(--lens-text-caption); }
.lens-btn--icon {
  width: 36px; height: 36px; padding: 0;
  background: transparent; color: var(--lens-color-text-secondary);
  border-radius: var(--lens-radius-md);
}
.lens-btn--icon:hover { background: var(--lens-color-bg-hover); color: var(--lens-color-text-primary); }

/* --- Card ------------------------------------------------- */
.lens-card {
  background: var(--lens-color-bg-card);
  border: 1px solid var(--lens-color-border);
  border-radius: var(--lens-radius-lg);
  padding: 24px;
  box-shadow: var(--lens-shadow-md);
}
.lens-card--clickable {
  cursor: pointer;
  transition: all var(--lens-motion-hover);
}
.lens-card--clickable:hover {
  transform: translateY(-1px);
  border-color: var(--lens-color-border-hover);
}
.lens-card--flat { box-shadow: none; }

/* --- Input / Select --------------------------------------- */
.lens-input, .lens-select, .lens-textarea {
  width: 100%;
  height: 36px;
  padding: 8px 12px;
  font-family: inherit;
  font-size: var(--lens-text-body);
  color: var(--lens-color-text-primary);
  background: var(--lens-color-bg-input);
  border: 1px solid var(--lens-color-border);
  border-radius: var(--lens-radius-sm);
  transition: border-color var(--lens-motion-hover), box-shadow var(--lens-motion-hover);
}
.lens-textarea { height: auto; padding: 10px 12px; min-height: 80px; line-height: 1.5; resize: vertical; }
.lens-input::placeholder, .lens-textarea::placeholder { color: var(--lens-color-text-muted); }
.lens-input:focus, .lens-select:focus, .lens-textarea:focus {
  outline: none;
  border-color: var(--lens-color-brand);
  box-shadow: var(--lens-shadow-focus);
}
.lens-input--lg { height: 48px; font-size: var(--lens-text-body-lg); padding: 12px 16px; }

.lens-field-label {
  display: block;
  font-size: var(--lens-text-caption);
  font-weight: 600;
  color: var(--lens-color-text-primary);
  margin-bottom: 8px;
}

/* Native select chevron */
.lens-select {
  appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='none' stroke='%235c6078' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round' viewBox='0 0 24 24'><polyline points='6 9 12 15 18 9'/></svg>");
  background-repeat: no-repeat;
  background-position: right 10px center;
  padding-right: 32px;
}

/* --- Checkbox / Radio ------------------------------------ */
.lens-check, .lens-radio {
  display: inline-flex;
  align-items: center;
  gap: var(--lens-space-sm);
  cursor: pointer;
  font-size: var(--lens-text-body);
  color: var(--lens-color-text-primary);
  padding: 6px 0;
}
.lens-check input, .lens-radio input { position: absolute; opacity: 0; pointer-events: none; }
.lens-check__box, .lens-radio__box {
  width: 18px; height: 18px;
  border: 1.5px solid var(--lens-color-border);
  background: var(--lens-color-bg-card);
  display: inline-flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  transition: all var(--lens-motion-hover);
}
.lens-check__box { border-radius: 4px; }
.lens-radio__box { border-radius: 50%; }
.lens-check input:checked + .lens-check__box,
.lens-radio input:checked + .lens-radio__box {
  background: var(--lens-color-brand);
  border-color: var(--lens-color-brand);
}
.lens-check__box::after {
  content: "";
  width: 10px; height: 6px;
  border-left: 2px solid #fff; border-bottom: 2px solid #fff;
  transform: rotate(-45deg) translate(1px, -1px);
  opacity: 0;
}
.lens-check input:checked + .lens-check__box::after { opacity: 1; }
.lens-radio__box::after {
  content: ""; width: 7px; height: 7px; border-radius: 50%; background: #fff;
  opacity: 0;
}
.lens-radio input:checked + .lens-radio__box::after { opacity: 1; }
.lens-check input:focus-visible + .lens-check__box,
.lens-radio input:focus-visible + .lens-radio__box {
  box-shadow: var(--lens-shadow-focus);
}

/* --- Table ------------------------------------------------ */
.lens-table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.lens-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--lens-text-body);
}
.lens-table thead th {
  background: var(--lens-color-brand);
  color: #fff;
  font-size: var(--lens-text-caption);
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  text-align: left;
  padding: 12px 16px;
}
.lens-table thead th:first-child { border-top-left-radius: var(--lens-radius-sm); }
.lens-table thead th:last-child { border-top-right-radius: var(--lens-radius-sm); }
.lens-table tbody td {
  padding: 12px 16px;
  border-top: 1px solid var(--lens-color-border);
  color: var(--lens-color-text-primary);
}
.lens-table tbody tr:nth-child(even) { background: var(--lens-color-bg-surface); }
.lens-table tbody tr:hover { background: var(--lens-color-bg-hover); }
.lens-table .num { text-align: right; font-variant-numeric: tabular-nums; }

/* --- KPI Tile -------------------------------------------- */
.lens-kpi {
  background: var(--lens-color-bg-card);
  border: 1px solid var(--lens-color-border);
  border-radius: var(--lens-radius-lg);
  padding: 24px;
  box-shadow: var(--lens-shadow-md);
  display: flex; flex-direction: column; gap: 12px;
  min-height: 168px;
}
.lens-kpi__head {
  display: flex; justify-content: space-between; align-items: flex-start;
}
.lens-kpi__label {
  font-size: var(--lens-text-label);
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--lens-color-text-secondary);
}
.lens-kpi__star { color: var(--lens-color-text-muted); }
.lens-kpi__value {
  font-size: var(--lens-text-hero);
  font-weight: 700;
  line-height: 1.10;
  letter-spacing: -0.5px;
  font-variant-numeric: tabular-nums;
  color: var(--lens-color-text-primary);
}
.lens-kpi__delta {
  display: flex; align-items: center; gap: 8px;
  font-size: var(--lens-text-caption);
}
.lens-kpi__delta-value { font-weight: 600; font-variant-numeric: tabular-nums; }
.lens-kpi__delta--up .lens-kpi__delta-value { color: var(--lens-color-success); }
.lens-kpi__delta--down .lens-kpi__delta-value { color: var(--lens-color-danger); }
.lens-kpi__delta--flat .lens-kpi__delta-value { color: var(--lens-color-text-secondary); }
.lens-kpi__delta-note { color: var(--lens-color-text-secondary); }
.lens-kpi__spark { margin-top: auto; height: 36px; }

/* --- Chip / Filter Tag ----------------------------------- */
.lens-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 28px;
  padding: 4px 12px;
  border-radius: var(--lens-radius-pill);
  font-size: var(--lens-text-caption);
  font-weight: 500;
  background: var(--lens-color-bg-surface);
  color: var(--lens-color-text-secondary);
  border: none;
  cursor: pointer;
  transition: all var(--lens-motion-hover);
}
.lens-chip:hover { background: var(--lens-color-bg-hover); }
.lens-chip--active {
  background: var(--lens-color-brand-tint);
  color: var(--lens-color-brand);
  font-weight: 600;
}
.lens-chip__close {
  display: inline-flex; align-items: center; justify-content: center;
  width: 14px; height: 14px; border-radius: 50%;
  opacity: 0.6;
}
.lens-chip__close:hover { opacity: 1; }

/* --- Badge ------------------------------------------------ */
.lens-badge {
  display: inline-flex;
  align-items: center;
  height: 20px;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: var(--lens-text-label);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: #fff;
}
.lens-badge--high { background: var(--lens-color-danger); }
.lens-badge--medium { background: var(--lens-color-series-2); }
.lens-badge--low { background: var(--lens-color-series-4); }
.lens-badge--watching { background: var(--lens-color-text-secondary); }
.lens-badge--blue { background: rgba(78,121,167,0.12); color: var(--lens-color-series-1); }
.lens-badge--orange { background: rgba(242,142,43,0.12); color: var(--lens-color-series-2); }
.lens-badge--teal { background: rgba(118,183,178,0.16); color: var(--lens-color-series-4); }
.lens-badge--mauve { background: rgba(175,122,161,0.16); color: var(--lens-color-series-7); }
.lens-badge--success { background: rgba(22,163,74,0.12); color: var(--lens-color-success); }

/* --- Modal ------------------------------------------------ */
.lens-modal-backdrop {
  position: fixed; inset: 0;
  background: rgba(15, 17, 23, 0.55);
  display: flex; align-items: center; justify-content: center;
  z-index: var(--lens-z-modal);
  padding: var(--lens-space-md);
}
.lens-modal {
  background: var(--lens-color-bg-card);
  border-radius: var(--lens-radius-lg);
  box-shadow: var(--lens-shadow-lg);
  max-width: 560px;
  width: 100%;
  max-height: calc(100vh - 40px);
  display: flex; flex-direction: column;
  overflow: hidden;
}
.lens-modal--lg { max-width: 720px; }
.lens-modal--search { max-width: 640px; }
.lens-modal__header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 24px 32px;
  border-bottom: 1px solid var(--lens-color-border);
}
.lens-modal__title { font-size: var(--lens-text-subhead-lg); font-weight: 600; }
.lens-modal__close {
  width: 32px; height: 32px; border: none; background: transparent;
  border-radius: var(--lens-radius-sm);
  color: var(--lens-color-text-secondary);
  display: inline-flex; align-items: center; justify-content: center;
  transition: background var(--lens-motion-hover);
}
.lens-modal__close:hover { background: var(--lens-color-bg-hover); color: var(--lens-color-text-primary); }
.lens-modal__body { padding: 24px 32px; overflow-y: auto; }
.lens-modal__footer {
  display: flex; justify-content: flex-end; gap: var(--lens-space-sm);
  padding: 20px 32px;
  border-top: 1px solid var(--lens-color-border);
  background: var(--lens-color-bg-surface);
}

/* --- Tabs (TopBar style) --------------------------------- */
.lens-tabs { display: flex; align-items: stretch; gap: 0; }
.lens-tab {
  display: inline-flex; align-items: center; gap: var(--lens-space-sm);
  height: var(--lens-layout-topbar-height);
  padding: 0 16px;
  font-size: var(--lens-text-body);
  font-weight: 400;
  color: var(--lens-color-text-secondary);
  border: none;
  background: transparent;
  border-bottom: 2px solid transparent;
  text-decoration: none;
  transition: all var(--lens-motion-hover);
  position: relative; top: 1px;
}
.lens-tab:hover { color: var(--lens-color-text-primary); text-decoration: none; }
.lens-tab--active {
  color: var(--lens-color-brand);
  font-weight: 600;
  border-bottom-color: var(--lens-color-brand);
}

/* Underline tabs (workspace etc.) */
.lens-tabs--underline {
  border-bottom: 1px solid var(--lens-color-border);
  gap: var(--lens-space-lg);
}
.lens-tabs--underline .lens-tab { height: 44px; padding: 0; }

/* --- Avatar ----------------------------------------------- */
.lens-avatar {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--lens-color-brand);
  color: #fff;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: var(--lens-text-caption);
  font-weight: 600;
  letter-spacing: 0.3px;
  flex-shrink: 0;
}
.lens-avatar--sm { width: 28px; height: 28px; font-size: 11px; }
.lens-avatar--lg { width: 48px; height: 48px; font-size: 16px; }
.lens-avatar--mauve { background: var(--lens-color-series-7); }
.lens-avatar--teal { background: var(--lens-color-series-4); }
.lens-avatar--orange { background: var(--lens-color-series-2); }

/* --- Alert / Insight row --------------------------------- */
.lens-alert {
  display: flex; gap: 16px;
  padding: 16px 20px;
  border-radius: var(--lens-radius-md);
  background: var(--lens-color-bg-card);
  border: 1px solid var(--lens-color-border);
  border-left-width: 3px;
  transition: background var(--lens-motion-hover);
}
.lens-alert:hover { background: var(--lens-color-bg-hover); cursor: pointer; }
.lens-alert--high { border-left-color: var(--lens-color-danger); }
.lens-alert--medium { border-left-color: var(--lens-color-series-2); }
.lens-alert--low { border-left-color: var(--lens-color-series-4); }
.lens-alert__icon {
  flex-shrink: 0;
  width: 32px; height: 32px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 50%;
}
.lens-alert--high .lens-alert__icon { background: rgba(225, 87, 89, 0.12); color: var(--lens-color-danger); }
.lens-alert--medium .lens-alert__icon { background: rgba(242, 142, 43, 0.12); color: var(--lens-color-series-2); }
.lens-alert--low .lens-alert__icon { background: rgba(118, 183, 178, 0.16); color: var(--lens-color-series-4); }
.lens-alert__body { flex: 1; min-width: 0; }
.lens-alert__title { font-size: var(--lens-text-body); font-weight: 600; margin-bottom: 4px; }
.lens-alert__desc { font-size: var(--lens-text-caption); color: var(--lens-color-text-secondary); margin-bottom: 6px; }
.lens-alert__time { font-size: var(--lens-text-caption); color: var(--lens-color-text-muted); }

/* --- Delta indicator ------------------------------------- */
.lens-delta {
  display: inline-flex; align-items: center; gap: 4px;
  font-weight: 600; font-variant-numeric: tabular-nums;
}
.lens-delta--up { color: var(--lens-color-success); }
.lens-delta--down { color: var(--lens-color-danger); }
.lens-delta--flat { color: var(--lens-color-text-secondary); }

/* --- Progress bar ---------------------------------------- */
.lens-progress {
  width: 100%; height: 6px;
  background: var(--lens-color-bg-surface);
  border-radius: var(--lens-radius-pill);
  overflow: hidden;
}
.lens-progress__fill {
  height: 100%;
  background: var(--lens-color-brand);
  border-radius: var(--lens-radius-pill);
  transition: width var(--lens-motion-accordion);
}
.lens-progress__fill--warn { background: var(--lens-color-series-2); }
.lens-progress__fill--ok { background: var(--lens-color-success); }

/* --- Toast ----------------------------------------------- */
.lens-toast {
  position: fixed; bottom: 24px; right: 24px;
  background: var(--lens-color-text-primary);
  color: #fff;
  padding: 12px 20px;
  border-radius: var(--lens-radius-md);
  box-shadow: var(--lens-shadow-lg);
  z-index: var(--lens-z-toast);
  display: flex; align-items: center; gap: var(--lens-space-sm);
  font-size: var(--lens-text-body);
}
.lens-toast__icon { color: var(--lens-color-success); }

/* --- Icon utilities -------------------------------------- */
.lens-icon { display: inline-block; vertical-align: middle; }
.lens-icon-sm { width: 16px; height: 16px; }
.lens-icon-md { width: 20px; height: 20px; }
.lens-icon-lg { width: 24px; height: 24px; }

/* --- Sparkline default styling -------------------------- */
.lens-spark { width: 100%; height: 100%; display: block; }