/* ── Senshin Design System — Component Library ─────────────────────────────
   Canonical definitions for buttons, toggles, pills, and badges.
   Loaded after the shell inline styles so these rules win.
   All pages inherit these components. Never redefine per-page.

   BUTTON PHILOSOPHY (locked 2026-04-16):
     Buttons are screen furniture, not visual blocks.
     Primary: refined filled, small padding, medium weight.
     Secondary: ghost/outline or text-link.
     No large black/navy casings — ever.
     Think Linear / Vercel — small, precise, understated.
   Last updated: 2026-04-17
─────────────────────────────────────────────────────────────────────────── */

/* ── Brand Block (logo + wordmark + strapline) ───────────────────────────
   NEVER inline the enso SVG. Always use:
     Jinja2: {% include 'partials/brand-block.html' %}
     Static:  <img src="/static/images/senshin-mark.svg" width="52" height="52">
   Canonical SVG: /static/images/senshin-mark.svg
   Rule: ONE file, never drift.
─────────────────────────────────────────────────────────────────────────── */

.brand-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-decoration: none;
  gap: 4px;
}
.brand-block__mark {
  width: 52px;
  height: 52px;
  flex-shrink: 0;
}
.brand-block__text {
  display: flex;
  flex-direction: column;
  align-items: center;
  line-height: 1;
}
.brand-block__name {
  font-family: var(--font-body, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif);
  font-size: 18px;
  font-weight: var(--fw-bold, 700);
  color: var(--t1, #0f172a);
  letter-spacing: -0.025em;
}
.brand-block__strapline {
  font-size: 7.5px;
  font-weight: var(--fw-semibold, 600);
  color: var(--t3, #6b6b67);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  margin-top: 3px;
}

/* Light modifier: wordmark and strapline in white — for dark nav backgrounds */
.brand-block--light .brand-block__name { color: #fff; }
.brand-block--light .brand-block__strapline { color: rgba(255,255,255,0.5); }

/* Responsive: tablet and mobile show mark only */
@media (max-width: 1024px) {
  .brand-block__text { display: none; }
}

/* ── Buttons ────────────────────────────────────────────────────────────── */

.ss-btn {
  height: var(--comp-btn-h, 34px);
  padding: 0 var(--comp-btn-px, 14px);
  border-radius: var(--comp-btn-r, 6px);
  font-size: var(--comp-btn-fs, 13px);
  font-weight: var(--comp-btn-fw, 500);
  font-family: var(--font-family, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
  border: 1px solid transparent;
  line-height: 1;
  white-space: nowrap;
  text-decoration: none;
  letter-spacing: 0;
  box-sizing: border-box;
}

/* Primary — brand blue */
.ss-btn--primary, .ss-btn-primary {
  background: var(--color-blue);
  color: #fff;
  border-color: var(--color-blue);
}
.ss-btn--primary:hover, .ss-btn-primary:hover {
  background: var(--brand-primary-hover);
  border-color: var(--brand-primary-hover);
}

/* Secondary — outline ghost (border only, no fill) */
.ss-btn--secondary, .ss-btn-secondary {
  background: transparent;
  color: var(--t2);
  border-color: var(--br);
}
.ss-btn--secondary:hover, .ss-btn-secondary:hover {
  background: var(--bg3, #f1f5f9);
  color: var(--t1);
  border-color: var(--br-hover, #bfdbfe);
}

/* Accent — purple for AI actions */
.ss-btn--accent, .ss-btn-accent {
  background: var(--color-purple);
  color: #fff;
  border-color: var(--color-purple);
}
.ss-btn--accent:hover, .ss-btn-accent:hover { background: var(--color-purple); border-color: var(--color-purple); }

/* Ghost — blue text on hover fill */
.ss-btn--ghost, .ss-btn-ghost {
  background: transparent;
  color: var(--color-blue);
  border-color: transparent;
}
.ss-btn--ghost:hover, .ss-btn-ghost:hover {
  background: rgba(37, 99, 235, 0.08);
  color: var(--brand-primary-hover);
}

/* Danger — outline only, never filled red */
.ss-btn--danger, .ss-btn-danger {
  background: transparent;
  color: var(--color-red);
  border-color: var(--color-red-light);
}
.ss-btn--danger:hover, .ss-btn-danger:hover { background: var(--color-red-bg); border-color: var(--color-red); }

/* Upgrade — purple CTA (Recraft-style) */
.ss-btn--upgrade, .ss-btn-upgrade {
  background: var(--color-purple);
  color: #fff;
  border-color: var(--color-purple);
  font-weight: var(--fw-semibold);
}
.ss-btn--upgrade:hover, .ss-btn-upgrade:hover { background: var(--color-purple); border-color: var(--color-purple); }

/* Legacy .btn alias used by older page modules — blue-tinted so it
   matches the new secondary treatment. */
.btn {
  height: var(--comp-btn-h, 40px);
  padding: 0 16px;
  border-radius: var(--comp-btn-r, 8px);
  font-size: var(--comp-btn-fs, 14px);
  font-weight: var(--comp-btn-fw, 600);
  font-family: inherit;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s ease;
  border: 1px solid rgba(37, 99, 235, 0.18);
  background: rgba(37, 99, 235, 0.08);
  color: var(--color-blue);
  line-height: 1;
  white-space: nowrap;
  box-sizing: border-box;
}
.btn:hover { background: rgba(37, 99, 235, 0.14); color: var(--brand-primary-hover); border-color: rgba(37, 99, 235, 0.28); }
.btn--sm { height: 32px; padding: 0 12px; font-size: var(--fs-body); }
.btn--primary { background: var(--color-blue); color: #fff; border-color: var(--color-blue); }
.btn--primary:hover { background: var(--brand-primary-hover); border-color: var(--brand-primary-hover); }
.btn--danger { background: transparent; color: var(--color-red); border-color: var(--color-red-light); }
.btn--danger:hover { background: var(--color-red-bg); border-color: var(--color-red); }

/* Back button — ghost / text-link (no boxed border).
   Locked 2026-05-10 per Lexy: in-page back must read as a link, not a CTA. */
.ss-back {
  height: 28px;
  padding: 0 6px 0 0;
  border-radius: 4px;
  border: 1px solid transparent;
  background: transparent;
  font-size: 13px;
  font-weight:600;
  cursor: pointer;
  font-family: inherit;
  color: var(--color-blue);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: color 0.12s, background 0.12s;
  line-height: 1;
}
.ss-back:hover { background: transparent; color: var(--brand-primary-hover); text-decoration: underline; text-underline-offset: 3px; }
.ss-back:focus-visible { outline: 2px solid var(--color-blue); outline-offset: 2px; }

/* ── Toggle switch ──────────────────────────────────────────────────────── */

/* ── Canonical toggle — 44×24 track, 18px knob, 3px inset, 20px travel ─ */
.ss-toggle,
.stn-toggle,
.tog {
  width: 44px;
  height: 24px;
  min-height: 24px !important;  /* override accessibility.css button{min-height:44px} */
  max-height: 24px;
  padding: 0 !important;        /* override typography.css button{padding:…} */
  border-radius: 12px;
  background: var(--s4, var(--br));
  border: none;
  cursor: pointer;
  position: relative;
  transition: background 0.2s ease;
  flex-shrink: 0;
  -webkit-appearance: none;
  appearance: none;
  outline-offset: 2px;
  vertical-align: middle;
  box-sizing: content-box;
}
.ss-toggle.on, .stn-toggle.on, .tog.is-on { background: var(--brand-primary, #1B4F72); }

/* Knob — pseudo-element (ss-toggle, stn-toggle) */
.ss-toggle::after,
.stn-toggle::after {
  content: '';
  position: absolute;
  top: 3px;
  left: 3px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background:var(--bg1);
  transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.15);
}
.ss-toggle.on::after,
.stn-toggle.on::after {
  transform: translateX(20px);
}

/* Knob — child element (.tog legacy alias) */
.tog__knob {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background:var(--bg1);
  transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12);
  pointer-events: none;
}
.tog.is-on .tog__knob {
  transform: translateX(20px);
}

/* ── Canonical choice card (radio / checkbox variants) ─────────────────
 *
 * Use this whenever you need a radio or checkbox inside a tappable card.
 * The CARD itself is the touch target (meets WCAG 2.5.5 — 44px min),
 * so the native input is visually hidden but keyboard-accessible, and
 * the visual indicator is drawn as a pseudo-element on .ss-choice-card__indicator.
 *
 * Markup (radio):
 *   <label class="ss-choice-card" data-runmode="plan">
 *     <input type="radio" name="runmode">
 *     <span class="ss-choice-card__indicator"></span>
 *     <span class="ss-choice-card__body">
 *       <span class="ss-choice-card__title">Plan it all upfront</span>
 *       <span class="ss-choice-card__sub">Fixed scope, sequential…</span>
 *     </span>
 *   </label>
 *
 * Markup (checkbox): add .ss-choice-card--check to the label.
 *
 * Selected state uses :has(input:checked) (Safari 15.4+, Chrome 105+).
 */
.ss-choice-card {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 11px 13px;
  border: 1px solid var(--br, var(--br));
  border-radius: 10px;
  cursor: pointer;
  background:var(--bg1);
  transition: border-color 0.12s ease, background 0.12s ease;
  min-height: var(--comp-btn-h, 40px);  /* card IS the touch target */
  box-sizing: border-box;
}
.ss-choice-card:hover {
  border-color: var(--t4);
  background: var(--bg2);
}
.ss-choice-card:focus-within {
  outline: 2px solid var(--brand-primary, var(--color-blue));
  outline-offset: 2px;
}
.ss-choice-card:has(input:checked) {
  border-color: var(--brand-primary, var(--color-blue));
  background: var(--color-blue-bg);
}

/* Visually hide the native input — keyboard still works via :focus-within */
.ss-choice-card input[type="radio"],
.ss-choice-card input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  pointer-events: none;
  width: 0 !important;
  height: 0 !important;
  min-height: 0 !important;   /* defeat global a11y floor — card carries it */
  min-width: 0 !important;
  margin: 0;
}

/* Visual indicator — radio variant (circle) */
.ss-choice-card__indicator {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  border: 2px solid var(--t4);
  border-radius: 50%;
  background:var(--bg1);
  margin-top: 2px;
  position: relative;
  transition: border-color 0.12s ease, background 0.12s ease;
}
.ss-choice-card:has(input:checked) .ss-choice-card__indicator {
  border-color: var(--brand-primary, var(--color-blue));
  background: var(--brand-primary, var(--color-blue));
}
.ss-choice-card:has(input:checked) .ss-choice-card__indicator::after {
  content: '';
  position: absolute;
  inset: 3px;
  border-radius: 50%;
  background:var(--bg1);
}

/* Checkbox variant — square with checkmark */
.ss-choice-card--check .ss-choice-card__indicator {
  border-radius: 4px;
}
.ss-choice-card--check:has(input:checked) .ss-choice-card__indicator {
  background: var(--brand-primary, var(--color-blue));
  border-color: var(--brand-primary, var(--color-blue));
}
.ss-choice-card--check:has(input:checked) .ss-choice-card__indicator::after {
  content: '';
  position: absolute;
  left: 4px;
  top: 0;
  width: 5px;
  height: 10px;
  border: solid #fff;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
  background: none;
  border-radius: 0;
  inset: auto;
}

/* Body layout */
.ss-choice-card__body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 1px;
}
.ss-choice-card__title {
  font-size: var(--fs-base);
  font-weight: var(--fw-semibold);
  color: var(--t1, var(--t1));
  line-height: var(--lh-tight, 1.15);
}
.ss-choice-card__sub {
  font-size: var(--fs-small);
  color: var(--t3, var(--t3));
  line-height: var(--lh-normal, 1.5);
}

/* Disabled state */
.ss-choice-card:has(input:disabled) {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ── Pills / Badges ─────────────────────────────────────────────────────── */
/*
 * Two pill families:
 *   .pill          — solid colour, white text  (RAG health, hard status)
 *   .ss-pill       — tinted bg, coloured text  (AI signals, info, soft status)
 *
 * Geometry is driven by density tokens from design-tokens.css:
 *   --pill-pad-y / --pill-pad-x / --pill-font / --pill-radius
 * Never hardcode padding, radius, or font-size inside variant rules.
 *
 * AI-tier variants (NEVER red):
 *   ai-observe → grey   ai-advise → blue   ai-challenge → purple
 */

/* Solid RAG pills — white text on full-saturation bg */
.pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--pill-pad-y, 2px) var(--pill-pad-x, 8px);
  border-radius: var(--pill-radius, 4px);
  font-size: var(--pill-font, 12px);
  font-weight: var(--fw-semibold);
  line-height: 1.3;
  color: #fff;
  white-space: nowrap;
  letter-spacing: -0.01em;
  border: 1px solid transparent;
}
/* RAG — health / hard-status only */
.pill-red    { background: var(--color-red);    border-color: var(--color-red); }
.pill-amber  { background: var(--color-amber);  border-color: var(--color-amber); }
.pill-green  { background: var(--color-green);  border-color: var(--color-green); }
/* UI chrome */
.pill-blue   { background: var(--color-blue);   border-color: var(--color-blue); }
.pill-purple { background: var(--color-purple); border-color: var(--color-purple); }
/* Neutral — use bg3 (light) so it never reads as black */
.pill-neutral{ background: var(--bg3); border-color: var(--br); color: var(--t2); }
.pill-slate  { background: var(--bg3); border-color: var(--br); color: var(--t3); }

/* Tinted soft badges — coloured text on light bg */
.ss-pill {
  display: inline-flex;
  align-items: center;
  padding: var(--pill-pad-y, 2px) var(--pill-pad-x, 8px);
  border-radius: var(--pill-radius, 4px);
  font-size: var(--pill-font, 12px);
  font-weight: var(--fw-semibold);
  line-height: 1.3;
  white-space: nowrap;
  letter-spacing: -0.01em;
}
/* Health / status variants */
.ss-pill--red     { background: var(--color-red-bg);    color: var(--color-red); }
.ss-pill--amber   { background: var(--color-amber-light); color: var(--color-amber); }
.ss-pill--green   { background: var(--color-green-bg);  color: var(--color-green); }
.ss-pill--blue    { background: var(--color-blue-bg);   color: var(--color-blue); }
.ss-pill--purple  { background: var(--color-purple-bg); color: var(--color-purple); }
.ss-pill--neutral { background: var(--bg3);             color: var(--t2); }
.ss-pill--slate   { background: var(--bg3);             color: var(--t3); }
/* AI-tier variants — Observe / Advise / Challenge */
.ss-pill--ai-observe  { background: var(--bg3);             color: var(--t3); }
.ss-pill--ai-advise   { background: var(--color-blue-bg);   color: var(--color-blue); }
.ss-pill--ai-challenge{ background: var(--color-purple-bg); color: var(--color-purple); }
/* Danger — non-AI hard errors only */
.ss-pill--danger  { background: var(--color-red-bg);    color: var(--color-red); }

/* ── Canonical cards ───────────────────────────────────────────────────── */
.ss-card {
  background: var(--bg1, #fff);
  border: 1px solid var(--br, var(--br));
  border-radius: var(--comp-card-r, 12px);
  padding: var(--comp-card-p, 24px);
  box-shadow: var(--comp-card-shadow, 0 1px 3px rgba(0,0,0,0.04));
}

/* ── Canonical form inputs ─────────────────────────────────────────────── */
.ss-field-label {
  font-size: var(--fs-body);
  font-weight: var(--fw-semibold);
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--t3);
  display: block;
  margin-bottom: 6px;
}
.ss-input,
.ss-select {
  min-height: 42px;
  padding: 8px 12px;
  border: 1px solid var(--br);
  border-radius: 10px;
  font-size: var(--fs-base);
  font-family: inherit;
  color: var(--t1);
  background: var(--bg2);
  outline: none;
  width: 100%;
  transition: border-color 0.15s, box-shadow 0.15s;
  box-sizing: border-box;
}
/* Custom chevron — the native browser arrow renders at ~30% opacity grey
   on macOS, which the §24 design language sweep made worse by darkening
   surface backgrounds. Strip the native chrome and draw an explicit
   chevron in --t2 ink so it's visible on every platform. */
.ss-select {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  padding-right: 32px;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8' fill='none'><path d='M1 1.5L6 6.5L11 1.5' stroke='%234A4A47' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'/></svg>");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 12px 8px;
}
.ss-input:focus,
.ss-select:focus {
  border-color: var(--color-blue);
  box-shadow: 0 0 0 2px rgba(37,99,235,0.1);
  background-color:var(--bg1);
}
.ss-input:disabled,
.ss-select:disabled { background-color: var(--bg3); color: var(--t4); cursor: not-allowed; }
textarea.ss-input { min-height: 80px; resize: vertical; }
.ss-form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.ss-form-grid .span-2 { grid-column: span 2; }

/* ── Canonical badges ──────────────────────────────────────────────────── */
.ss-badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: var(--comp-badge-r, 999px);
  font-size: var(--fs-small);
  font-weight: var(--fw-semibold);
}
.ss-badge--green  { background: var(--color-green-bg); color: var(--color-green); }
.ss-badge--blue   { background: var(--color-blue-bg);  color: var(--color-blue); }
.ss-badge--purple { background: var(--color-purple-bg); color: var(--color-purple); }
.ss-badge--amber  { background: var(--color-amber-bg); color: var(--color-amber); }

/* ═══════════════════════════════════════════════════════════════════════════
   CANONICAL UI CONTROLS — Senshin design system v2
   ──────────────────────────────────────────────────────────────────────────
   Added 2026-04-10. Every form control, overlay, surface, and feedback
   primitive the app needs. Consumed by pages_vnext/* and components_vnext/*.
   Never hand-roll one of these in an inline style — extend this file.

   CONTENTS
     1. Z-index token family            (--z-*)
     2. .ss-radio        standalone radio
     3. .ss-check        standalone checkbox
     4. .ss-slider       range slider
     5. .ss-chip         tag / chip (static + interactive + removable)
     6. .ss-tag-input    multi-value chip input
     7. .ss-search       search input with icon + clear
     8. .ss-stepper      numeric stepper (− n +)
     9. .ss-date         date input wrapper
    10. .ss-time         time input wrapper
    11. .ss-upload       file dropzone
    12. .ss-segmented    segmented control
    13. .ss-tabs         navigation tabs
    14. .ss-accordion    <details>/<summary> accordion
    15. .ss-dialog       modal dialog (native <dialog>)
    16. .ss-toast        toast notification + region
    17. .ss-tooltip      CSS-only tooltip on data-tooltip
    18. .ss-popover      floating popover surface
    19. .ss-menu         menu (list of actions)
    20. .ss-avatar       user avatar + group
    21. .ss-breadcrumb   breadcrumb navigation
    22. .ss-progress     progress bar
    23. .ss-spinner      loading spinner
    24. .ss-empty        empty state
    25. .ss-alert        inline alert / callout
    26. .ss-table        canonical data table
    27. .ss-link         inline text link
    28. .ss-divider      horizontal rule
    29. .ss-skeleton     loading skeleton
    30. .ss-kbd          keyboard key badge

   PATTERNS
     - Native interactive elements (button/input/select/summary/a) are
       hit by accessibility.css:47-56 with min-height: 40px; min-width: 44px.
       Nested elements inside a larger tap target (e.g. buttons inside a
       .ss-stepper, .ss-search__clear, .ss-dialog__close) set
       min-height: 0 !important; min-width: 0 !important to opt out. The
       parent carries the WCAG 2.5.5 touch target.
     - Hidden native inputs (for .ss-radio, .ss-check, .ss-upload) use
       the same opt-out pattern; keyboard access stays via :focus-within
       on the wrapper.
     - Tokens only: colours from --bg*/--t*/--br*/--color-*, spacing
       from --space-*, radius from --radius-*/--comp-*-r, shadows from
       --shadow-*, typography from --fs-*/--fw-*/--lh-*.
   ═══════════════════════════════════════════════════════════════════════ */

/* ── 1. Z-index token family ──────────────────────────────────────────── */
:root {
  --z-dropdown: 800;
  --z-sticky:   900;
  --z-overlay:  1000;
  --z-modal:    1100;
  --z-popover:  1200;
  --z-toast:    1300;
  --z-tooltip:  1400;
}

/* ── 2. Standalone radio (.ss-radio) ──────────────────────────────────── */
.ss-radio {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: var(--comp-btn-h, 40px);
  cursor: pointer;
  font-size: var(--fs-base);
  color: var(--t1);
  line-height: var(--lh-normal);
}
.ss-radio input[type="radio"] {
  position: absolute;
  opacity: 0;
  pointer-events: none;
  width: 0 !important;
  height: 0 !important;
  min-height: 0 !important;
  min-width: 0 !important;
  margin: 0;
}
.ss-radio__indicator {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  border: 2px solid var(--t4);
  border-radius: 50%;
  background:var(--bg1);
  position: relative;
  transition: border-color 0.12s ease, background 0.12s ease;
  box-sizing: border-box;
}
.ss-radio:hover .ss-radio__indicator { border-color: var(--t4); }
.ss-radio:has(input:focus-visible) .ss-radio__indicator {
  outline: 2px solid var(--brand-primary, var(--color-blue));
  outline-offset: 2px;
}
.ss-radio:has(input:checked) .ss-radio__indicator {
  border-color: var(--brand-primary, var(--color-blue));
  background: var(--brand-primary, var(--color-blue));
}
.ss-radio:has(input:checked) .ss-radio__indicator::after {
  content: '';
  position: absolute;
  inset: 3px;
  border-radius: 50%;
  background:var(--bg1);
}
.ss-radio:has(input:disabled) { opacity: 0.5; cursor: not-allowed; }

/* ── 3. Standalone checkbox (.ss-check) ───────────────────────────────── */
.ss-check {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: var(--comp-btn-h, 40px);
  cursor: pointer;
  font-size: var(--fs-base);
  color: var(--t1);
  line-height: var(--lh-normal);
}
.ss-check input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  pointer-events: none;
  width: 0 !important;
  height: 0 !important;
  min-height: 0 !important;
  min-width: 0 !important;
  margin: 0;
}
.ss-check__indicator {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  border: 2px solid var(--t4);
  border-radius: 4px;
  background:var(--bg1);
  position: relative;
  transition: border-color 0.12s ease, background 0.12s ease;
  box-sizing: border-box;
}
.ss-check:hover .ss-check__indicator { border-color: var(--t4); }
.ss-check:has(input:focus-visible) .ss-check__indicator {
  outline: 2px solid var(--brand-primary, var(--color-blue));
  outline-offset: 2px;
}
.ss-check:has(input:checked) .ss-check__indicator {
  background: var(--brand-primary, var(--color-blue));
  border-color: var(--brand-primary, var(--color-blue));
}
.ss-check:has(input:checked) .ss-check__indicator::after {
  content: '';
  position: absolute;
  left: 4px;
  top: 0;
  width: 5px;
  height: 10px;
  border: solid #fff;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}
.ss-check:has(input:indeterminate) .ss-check__indicator {
  background: var(--brand-primary, var(--color-blue));
  border-color: var(--brand-primary, var(--color-blue));
}
.ss-check:has(input:indeterminate) .ss-check__indicator::after {
  content: '';
  position: absolute;
  left: 3px;
  right: 3px;
  top: 6px;
  height: 2px;
  background:var(--bg1);
}
.ss-check:has(input:disabled) { opacity: 0.5; cursor: not-allowed; }

/* ── 4. Range slider (.ss-slider) ─────────────────────────────────────── */
.ss-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 4px;
  background: var(--br, var(--br));
  border-radius: 2px;
  outline: none;
  min-height: 0 !important;
  min-width: 0 !important;
  padding: 0 !important;
  margin: 10px 0;
  cursor: pointer;
}
.ss-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border: none;
  border-radius: 50%;
  background: var(--brand-primary, var(--color-blue));
  cursor: pointer;
  box-shadow: 0 1px 3px rgba(0,0,0,0.15);
  transition: transform 0.12s ease;
}
.ss-slider::-webkit-slider-thumb:hover { transform: scale(1.15); }
.ss-slider::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border: none;
  border-radius: 50%;
  background: var(--brand-primary, var(--color-blue));
  cursor: pointer;
  box-shadow: 0 1px 3px rgba(0,0,0,0.15);
}
.ss-slider:focus-visible {
  outline: 2px solid var(--brand-primary, var(--color-blue));
  outline-offset: 4px;
}
.ss-slider:disabled { opacity: 0.5; cursor: not-allowed; }

/* ── 5. Chip / tag (.ss-chip) ─────────────────────────────────────────── */
.ss-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  background: var(--bg2, var(--bg2));
  border: 1px solid var(--br, var(--br));
  font-size: var(--fs-small);
  font-weight: var(--fw-semibold);
  color: var(--t1, var(--t1));
  white-space: nowrap;
  line-height: 1;
  box-sizing: border-box;
}
.ss-chip--interactive {
  cursor: pointer;
  transition: background 0.12s ease, border-color 0.12s ease, color 0.12s ease;
  min-height: var(--comp-btn-h, 40px) !important;
  height: auto;
  padding: 6px 12px;
}
.ss-chip--interactive:hover {
  background: var(--bg3, var(--bg3));
  border-color: var(--br-hover, var(--br-hover));
}
.ss-chip--selected {
  background: rgba(37, 99, 235, 0.08);
  border-color: var(--brand-primary, var(--color-blue));
  color: var(--brand-primary, var(--color-blue));
}
.ss-chip--selected:hover {
  background: rgba(37, 99, 235, 0.14);
}
.ss-chip__remove {
  width: 14px;
  height: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: 50%;
  background: rgba(0,0,0,0.1);
  color: inherit;
  font-size: 11px;
  line-height: 1;
  cursor: pointer;
  padding: 0 !important;
  min-height: 0 !important;
  min-width: 0 !important;
}
.ss-chip__remove:hover { background: rgba(0,0,0,0.2); }

/* ── 6. Tag-input (.ss-tag-input) ─────────────────────────────────────── */
.ss-tag-input {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  padding: 6px 8px;
  border: 1px solid var(--br, var(--br));
  border-radius: var(--comp-input-r, 8px);
  background:var(--bg1);
  min-height: var(--comp-input-h, 40px);
  transition: border-color 0.15s, box-shadow 0.15s;
  box-sizing: border-box;
}
.ss-tag-input:focus-within {
  border-color: var(--brand-primary, var(--color-blue));
  box-shadow: 0 0 0 2px rgba(37,99,235,0.1);
}
.ss-tag-input__field {
  flex: 1;
  min-width: 120px;
  border: none;
  outline: none;
  background: transparent;
  font-size: var(--fs-base);
  color: var(--t1, var(--t1));
  padding: 4px 2px !important;
  min-height: 0 !important;
  min-width: 0 !important;
}

/* ── 7. Search (.ss-search) ───────────────────────────────────────────── */
.ss-search {
  position: relative;
  display: flex;
  align-items: center;
  width: 100%;
}
.ss-search__icon {
  position: absolute;
  left: 12px;
  width: 16px;
  height: 16px;
  color: var(--t3, var(--t3));
  pointer-events: none;
  flex-shrink: 0;
}
.ss-search__input {
  height: var(--comp-input-h, 40px);
  padding: 0 36px 0 38px;
  border: 1px solid var(--br, var(--br));
  border-radius: var(--comp-input-r, 8px);
  font-size: var(--fs-base);
  font-family: inherit;
  color: var(--t1, var(--t1));
  background: var(--bg2);
  width: 100%;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s, background 0.15s;
  box-sizing: border-box;
}
.ss-search__input:focus {
  border-color: var(--brand-primary, var(--color-blue));
  box-shadow: 0 0 0 2px rgba(37,99,235,0.1);
  background:var(--bg1);
}
.ss-search__clear {
  position: absolute;
  right: 10px;
  width: 20px;
  height: 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  color: var(--t3, var(--t3));
  cursor: pointer;
  border-radius: 50%;
  padding: 0 !important;
  min-height: 0 !important;
  min-width: 0 !important;
}
.ss-search__clear:hover { color: var(--t1); background: var(--bg3); }

/* ── 8. Numeric stepper (.ss-stepper) ─────────────────────────────────── */
.ss-stepper {
  display: inline-flex;
  align-items: stretch;
  height: var(--comp-input-h, 40px);
  border: 1px solid var(--br, var(--br));
  border-radius: var(--comp-input-r, 8px);
  background:var(--bg1);
  overflow: hidden;
  box-sizing: border-box;
}
.ss-stepper:focus-within {
  border-color: var(--brand-primary, var(--color-blue));
  box-shadow: 0 0 0 2px rgba(37,99,235,0.1);
}
.ss-stepper__btn {
  width: 32px;
  height: 100%;
  border: none;
  background: transparent;
  color: var(--t1, var(--t1));
  font-size: var(--fs-lg);
  font-weight: var(--fw-semibold);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 !important;
  min-height: 0 !important;
  min-width: 0 !important;
  transition: background 0.12s ease;
}
.ss-stepper__btn:hover { background: var(--bg3, var(--bg3)); }
.ss-stepper__btn:disabled { opacity: 0.4; cursor: not-allowed; }
.ss-stepper__input {
  width: 56px;
  height: 100%;
  border: none;
  border-left: 1px solid var(--br, var(--br));
  border-right: 1px solid var(--br, var(--br));
  text-align: center;
  background: transparent;
  font-size: var(--fs-base);
  font-family: inherit;
  color: var(--t1, var(--t1));
  outline: none;
  -moz-appearance: textfield;
  min-height: 0 !important;
  min-width: 0 !important;
  padding: 0 !important;
}
.ss-stepper__input::-webkit-outer-spin-button,
.ss-stepper__input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

/* ── 9. Date input (.ss-date) & 10. Time input (.ss-time) ─────────────── */
.ss-date,
.ss-time {
  height: var(--comp-input-h, 40px);
  padding: 0 12px;
  border: 1px solid var(--br, var(--br));
  border-radius: var(--comp-input-r, 8px);
  font-size: var(--fs-base);
  font-family: inherit;
  color: var(--t1, var(--t1));
  background: var(--bg2);
  outline: none;
  box-sizing: border-box;
  transition: border-color 0.15s, box-shadow 0.15s, background 0.15s;
  width: 100%;
}
.ss-date:focus,
.ss-time:focus {
  border-color: var(--brand-primary, var(--color-blue));
  box-shadow: 0 0 0 2px rgba(37,99,235,0.1);
  background:var(--bg1);
}
.ss-date:disabled,
.ss-time:disabled {
  background: var(--bg3, var(--bg3));
  color: var(--t4, var(--t4));
  cursor: not-allowed;
}

/* ── 11. File upload dropzone (.ss-upload) ────────────────────────────── */
.ss-upload {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 24px;
  border: 2px dashed var(--br, var(--br));
  border-radius: var(--radius-lg, 12px);
  background: var(--bg2, var(--bg2));
  text-align: center;
  cursor: pointer;
  transition: border-color 0.12s ease, background 0.12s ease;
  min-height: 120px;
  box-sizing: border-box;
}
.ss-upload:hover,
.ss-upload--dragging {
  border-color: var(--brand-primary, var(--color-blue));
  background: var(--color-blue-bg);
}
.ss-upload__icon {
  width: 40px;
  height: 40px;
  color: var(--t3, var(--t3));
}
.ss-upload__title {
  font-size: var(--fs-base);
  font-weight: var(--fw-semibold);
  color: var(--t1, var(--t1));
}
.ss-upload__hint {
  font-size: var(--fs-small);
  color: var(--t3, var(--t3));
}
.ss-upload input[type="file"] {
  position: absolute;
  opacity: 0;
  pointer-events: none;
  width: 0 !important;
  height: 0 !important;
  min-height: 0 !important;
  min-width: 0 !important;
}

/* ── 12. Segmented control (.ss-segmented) ────────────────────────────── */
.ss-segmented {
  display: inline-flex;
  align-items: stretch;
  padding: 3px;
  background: var(--bg3, var(--bg3));
  border-radius: 10px;
  gap: 2px;
}
.ss-segmented__btn {
  height: 32px;
  padding: 0 14px;
  border: none;
  background: transparent;
  color: var(--t3, var(--t3));
  font-size: var(--fs-body);
  font-weight: var(--fw-semibold);
  font-family: inherit;
  cursor: pointer;
  border-radius: 8px;
  transition: background 0.12s, color 0.12s;
  min-height: 32px !important;
  min-width: 0 !important;
  white-space: nowrap;
}
.ss-segmented__btn:hover { color: var(--t1, var(--t1)); }
.ss-segmented__btn[aria-selected="true"],
.ss-segmented__btn.is-active {
  background: var(--bg1, #fff);
  color: var(--t1, var(--t1));
  box-shadow: var(--shadow-sm);
}
.ss-segmented__btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* ── 13. Navigation tabs (.ss-tabs) ───────────────────────────────────── */
.ss-tabs {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--br, var(--br));
  overflow-x: auto;
  scrollbar-width: none;
}
.ss-tabs::-webkit-scrollbar { display: none; }
.ss-tab {
  padding: 10px 14px;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--t3, var(--t3));
  font-size: var(--fs-base);
  font-weight: var(--fw-semibold);
  font-family: inherit;
  cursor: pointer;
  transition: color 0.12s, border-color 0.12s;
  margin-bottom: -1px;
  white-space: nowrap;
  min-width: 0 !important;
}
.ss-tab:hover { color: var(--t1, var(--t1)); }
.ss-tab[aria-selected="true"],
.ss-tab.is-active {
  color: var(--brand-primary, var(--color-blue));
  border-bottom-color: var(--brand-primary, var(--color-blue));
}
.ss-tab:disabled { opacity: 0.4; cursor: not-allowed; }

/* ── 14. Accordion (.ss-accordion) ────────────────────────────────────── */
.ss-accordion {
  border: 1px solid var(--br, var(--br));
  border-radius: var(--radius-md, 8px);
  background: var(--bg1, #fff);
  overflow: hidden;
}
.ss-accordion + .ss-accordion { margin-top: 8px; }
.ss-accordion__summary {
  padding: 12px 16px;
  font-size: var(--fs-base);
  font-weight: var(--fw-semibold);
  color: var(--t1, var(--t1));
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--comp-btn-h, 40px);
  box-sizing: border-box;
}
.ss-accordion__summary::-webkit-details-marker { display: none; }
.ss-accordion__summary::after {
  content: '›';
  display: inline-block;
  font-size: 18px;
  color: var(--t3, var(--t3));
  transform: rotate(90deg);
  transition: transform 0.15s ease;
  margin-left: 10px;
}
.ss-accordion[open] > .ss-accordion__summary::after {
  transform: rotate(270deg);
}
.ss-accordion__summary:hover { background: var(--bg2, var(--bg2)); }
.ss-accordion__body {
  padding: 4px 16px 14px;
  font-size: var(--fs-base);
  color: var(--t2, var(--t2));
  line-height: var(--lh-normal);
}

/* ── 15. Modal dialog (.ss-dialog) — native <dialog> ─────────────────── */
.ss-dialog {
  border: none;
  padding: 0;
  background: transparent;
  max-width: 560px;
  width: calc(100% - 32px);
  color: var(--t1, var(--t1));
}
.ss-dialog::backdrop {
  background: rgba(15, 23, 42, 0.5);
  backdrop-filter: blur(2px);
}
.ss-dialog__panel {
  background: var(--bg1, #fff);
  border: 1px solid var(--br, var(--br));
  border-radius: var(--radius-lg, 12px);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}
.ss-dialog__header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--br, var(--br));
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.ss-dialog__title {
  font-size: var(--fs-lg);
  font-weight: var(--fw-semibold);
  color: var(--t1, var(--t1));
  margin: 0;
  line-height: var(--lh-tight);
}
.ss-dialog__close {
  width: 32px;
  height: 32px;
  border: none;
  background: transparent;
  color: var(--t3, var(--t3));
  cursor: pointer;
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 !important;
  min-height: 32px !important;
  min-width: 32px !important;
}
.ss-dialog__close:hover { background: var(--bg3, var(--bg3)); color: var(--t1, var(--t1)); }
.ss-dialog__body {
  padding: 20px;
  font-size: var(--fs-base);
  color: var(--t2, var(--t2));
  line-height: var(--lh-normal);
  max-height: 70vh;
  overflow-y: auto;
}
.ss-dialog__footer {
  padding: 14px 20px;
  border-top: 1px solid var(--br, var(--br));
  display: flex;
  gap: 8px;
  justify-content: flex-end;
  flex-wrap: wrap;
}

/* ── 16. Toast (.ss-toast) ────────────────────────────────────────────── */
.ss-toast-region {
  position: fixed;
  bottom: 20px;
  right: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: var(--z-toast, 1300);
  pointer-events: none;
  max-width: calc(100% - 40px);
}
.ss-toast-region > * { pointer-events: auto; }
.ss-toast {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 14px;
  background: var(--bg1, #fff);
  border: 1px solid var(--br, var(--br));
  border-left: 3px solid var(--brand-primary, var(--color-blue));
  border-radius: var(--radius-md, 8px);
  box-shadow: var(--shadow-md);
  min-width: 280px;
  max-width: 420px;
  font-size: var(--fs-body);
  color: var(--t1, var(--t1));
  box-sizing: border-box;
}
.ss-toast--success { border-left-color: var(--color-green); }
.ss-toast--warning { border-left-color: var(--color-amber); }
.ss-toast--error   { border-left-color: var(--color-red); }
.ss-toast--info    { border-left-color: var(--color-blue); }
.ss-toast__icon {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  margin-top: 1px;
}
.ss-toast__body { flex: 1; min-width: 0; }
.ss-toast__title {
  font-weight: var(--fw-semibold);
  margin-bottom: 2px;
  line-height: var(--lh-tight);
}
.ss-toast__message {
  color: var(--t2, var(--t2));
  line-height: var(--lh-normal);
}
.ss-toast__close {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  border: none;
  background: transparent;
  color: var(--t3, var(--t3));
  cursor: pointer;
  border-radius: 4px;
  padding: 0 !important;
  min-height: 0 !important;
  min-width: 0 !important;
}
.ss-toast__close:hover { color: var(--t1); background: var(--bg3); }

/* ── 17. Tooltip (.ss-tooltip) — CSS-only on data-tooltip ────────────── */
.ss-tooltip {
  position: relative;
  display: inline-flex;
}
.ss-tooltip[data-tooltip]::before {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  padding: 6px 10px;
  background: var(--bg1, #fff);
  color: var(--t1);
  border: 1px solid var(--br);
  box-shadow: var(--shadow-md, 0 2px 8px rgba(44,44,42,.08));
  font-size: var(--fs-small);
  font-weight: var(--fw-regular);
  white-space: nowrap;
  border-radius: 6px;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.15s ease, transform 0.15s ease;
  z-index: var(--z-tooltip, 1400);
}
.ss-tooltip[data-tooltip]::after {
  content: '';
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  border: 4px solid transparent;
  border-top-color: var(--br);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.15s ease, transform 0.15s ease;
}
.ss-tooltip:hover::before,
.ss-tooltip:focus-within::before {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}
.ss-tooltip:hover::after,
.ss-tooltip:focus-within::after {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ── 18. Popover surface (.ss-popover) ────────────────────────────────── */
.ss-popover {
  position: absolute;
  background: var(--bg1, #fff);
  border: 1px solid var(--br, var(--br));
  border-radius: var(--radius-md, 8px);
  box-shadow: var(--shadow-lg);
  padding: 6px;
  min-width: 180px;
  z-index: var(--z-popover, 1200);
  color: var(--t1, var(--t1));
  box-sizing: border-box;
}

/* ── 19. Menu (.ss-menu) ──────────────────────────────────────────────── */
.ss-menu {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.ss-menu__item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  background: transparent;
  border: none;
  border-radius: 6px;
  color: var(--t1, var(--t1));
  font-size: var(--fs-body);
  font-weight: var(--fw-regular);
  font-family: inherit;
  text-align: left;
  width: 100%;
  cursor: pointer;
  text-decoration: none;
  min-height: 36px !important;
  min-width: 0 !important;
  box-sizing: border-box;
}
.ss-menu__item:hover { background: var(--bg3, var(--bg3)); }
.ss-menu__item[aria-disabled="true"],
.ss-menu__item:disabled { opacity: 0.5; cursor: not-allowed; }
.ss-menu__item--danger { color: var(--color-red, var(--color-red)); }
.ss-menu__item--danger:hover { background: var(--color-red-bg, var(--color-red-bg)); }
.ss-menu__icon {
  flex-shrink: 0;
  width: 16px;
  height: 16px;
}
.ss-menu__sep {
  height: 1px;
  background: var(--br, var(--br));
  margin: 4px 0;
  border: none;
}
.ss-menu__label {
  padding: 6px 10px 2px;
  font-size: var(--fs-caption);
  font-weight: var(--fw-semibold);
  color: var(--t3, var(--t3));
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* ── 20. Avatar (.ss-avatar) ──────────────────────────────────────────── */
.ss-avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--bg3, var(--bg3));
  color: var(--t2, var(--t2));
  font-size: var(--fs-small);
  font-weight: var(--fw-semibold);
  overflow: hidden;
  flex-shrink: 0;
  box-sizing: border-box;
  line-height: 1;
  text-transform: uppercase;
}
.ss-avatar--sm { width: 24px; height: 24px; font-size: var(--fs-caption); }
.ss-avatar--lg { width: 48px; height: 48px; font-size: var(--fs-base); }
.ss-avatar--xl { width: 64px; height: 64px; font-size: var(--fs-lg); }
.ss-avatar img,
.ss-avatar svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.ss-avatar-group {
  display: inline-flex;
  align-items: center;
}
.ss-avatar-group > .ss-avatar + .ss-avatar {
  margin-left: -8px;
  border: 2px solid var(--bg1, #fff);
}

/* ── 21. Breadcrumb (.ss-breadcrumb) ──────────────────────────────────── */
.ss-breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 4px 6px;
  font-size: var(--fs-body);
  color: var(--t3, var(--t3));
  line-height: var(--lh-normal);
  list-style: none;
  padding: 0;
  margin: 0;
}
.ss-breadcrumb__item {
  color: var(--t3, var(--t3));
  text-decoration: none;
  transition: color 0.12s ease;
  min-height: 0 !important;
  min-width: 0 !important;
}
.ss-breadcrumb__item:hover { color: var(--brand-primary, var(--color-blue)); }
.ss-breadcrumb__item[aria-current="page"] {
  color: var(--t1, var(--t1));
  font-weight: var(--fw-semibold);
}
.ss-breadcrumb__sep {
  color: var(--t4, var(--t4));
  user-select: none;
}

/* ── 22. Progress bar (.ss-progress) ──────────────────────────────────── */
.ss-progress {
  width: 100%;
  height: 6px;
  background: var(--bg3, var(--bg3));
  border-radius: 3px;
  overflow: hidden;
}
.ss-progress--lg { height: 10px; border-radius: 5px; }
.ss-progress--sm { height: 4px; border-radius: 2px; }
.ss-progress__bar {
  height: 100%;
  width: 0%;
  background: var(--brand-primary, var(--color-blue));
  border-radius: inherit;
  transition: width 0.3s ease;
}
.ss-progress--success .ss-progress__bar { background: var(--color-green); }
.ss-progress--warning .ss-progress__bar { background: var(--color-amber); }
.ss-progress--danger  .ss-progress__bar { background: var(--color-red); }
.ss-progress--indeterminate .ss-progress__bar {
  width: 30% !important;
  animation: ss-progress-indeterminate 1.4s ease-in-out infinite;
}
@keyframes ss-progress-indeterminate {
  0%   { margin-left: -30%; }
  100% { margin-left: 100%; }
}

/* ── 23. Spinner (.ss-spinner) ────────────────────────────────────────── */
.ss-spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid var(--bg3, var(--bg3));
  border-top-color: var(--brand-primary, var(--color-blue));
  border-radius: 50%;
  animation: ss-spin 0.8s linear infinite;
  flex-shrink: 0;
  vertical-align: middle;
}
.ss-spinner--sm { width: 12px; height: 12px; border-width: 1.5px; }
.ss-spinner--lg { width: 24px; height: 24px; border-width: 3px; }
.ss-spinner--xl { width: 40px; height: 40px; border-width: 4px; }
@keyframes ss-spin { to { transform: rotate(360deg); } }

/* ── 24. Empty state (.ss-empty) ──────────────────────────────────────── */
.ss-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 48px 24px;
  text-align: center;
}
.ss-empty__icon {
  width: 48px;
  height: 48px;
  color: var(--t4, var(--t4));
  margin-bottom: 4px;
}
.ss-empty__title {
  font-size: var(--fs-lg);
  font-weight: var(--fw-semibold);
  color: var(--t1, var(--t1));
  line-height: var(--lh-tight);
  margin: 0;
}
.ss-empty__body {
  font-size: var(--fs-base);
  color: var(--t3, var(--t3));
  line-height: var(--lh-normal);
  max-width: 360px;
  margin: 0;
}
.ss-empty__actions {
  display: flex;
  gap: 8px;
  margin-top: 6px;
  flex-wrap: wrap;
  justify-content: center;
}

/* ── 25. Alert (.ss-alert) ────────────────────────────────────────────── */
.ss-alert {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 14px;
  border: 1px solid var(--br, var(--br));
  border-left: 3px solid var(--t3, var(--t3));
  border-radius: var(--radius-md, 8px);
  background: var(--bg2, var(--bg2));
  font-size: var(--fs-body);
  color: var(--t1, var(--t1));
  line-height: var(--lh-normal);
  box-sizing: border-box;
}
.ss-alert--info    { border-left-color: var(--color-blue);  background: var(--color-blue-bg); }
.ss-alert--success { border-left-color: var(--color-green); background: var(--color-green-bg); }
.ss-alert--warning { border-left-color: var(--color-amber); background: var(--color-amber-bg); }
.ss-alert--danger  { border-left-color: var(--color-red);   background: var(--color-red-bg); }
.ss-alert__icon {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  margin-top: 1px;
}
.ss-alert__body { flex: 1; min-width: 0; }
.ss-alert__title {
  font-weight: var(--fw-semibold);
  margin-bottom: 2px;
  line-height: var(--lh-tight);
}

/* ── 26. Table (.ss-table) ────────────────────────────────────────────── */
.ss-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--fs-body);
  color: var(--t1, var(--t1));
  background: var(--bg1, #fff);
}
.ss-table th {
  text-align: left;
  font-size: var(--fs-caption);
  font-weight: var(--fw-semibold);
  color: var(--t3, var(--t3));
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 10px 12px;
  border-bottom: 1px solid var(--br, var(--br));
  background: var(--bg2, var(--bg2));
  white-space: nowrap;
}
.ss-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--br, var(--br));
  vertical-align: middle;
  line-height: var(--lh-normal);
}
.ss-table tbody tr:last-child td { border-bottom: none; }
.ss-table--hover tbody tr { transition: background 0.12s ease; }
.ss-table--hover tbody tr:hover { background: var(--bg2, var(--bg2)); }
.ss-table--striped tbody tr:nth-child(even) { background: var(--bg2, var(--bg2)); }
.ss-table--compact th,
.ss-table--compact td { padding: 6px 10px; }
.ss-table--bordered { border: 1px solid var(--br); border-radius: var(--radius-md); overflow: hidden; }

/* ── 27. Link (.ss-link) ──────────────────────────────────────────────── */
.ss-link {
  color: var(--brand-primary, var(--color-blue));
  text-decoration: none;
  transition: color 0.12s ease;
  min-height: 0 !important;
  min-width: 0 !important;
}
.ss-link:hover {
  color: var(--brand-primary-hover, var(--brand-primary-hover));
  text-decoration: underline;
}
.ss-link--muted { color: var(--t2, var(--t2)); }
.ss-link--muted:hover { color: var(--brand-primary, var(--color-blue)); }

/* ── 28. Divider (.ss-divider) ────────────────────────────────────────── */
.ss-divider {
  border: none;
  border-top: 1px solid var(--br, var(--br));
  margin: 16px 0;
  height: 0;
}
.ss-divider--thick { border-top-width: 2px; }
.ss-divider--vertical {
  border-top: none;
  border-left: 1px solid var(--br, var(--br));
  height: auto;
  align-self: stretch;
  margin: 0 12px;
  width: 0;
}

/* ── 29. Skeleton loader (.ss-skeleton) ───────────────────────────────── */
.ss-skeleton {
  display: inline-block;
  background: linear-gradient(
    90deg,
    var(--bg3, var(--bg3)) 0%,
    var(--bg2, var(--bg2)) 50%,
    var(--bg3, var(--bg3)) 100%
  );
  background-size: 200% 100%;
  animation: ss-skeleton-pulse 1.2s ease-in-out infinite;
  border-radius: 4px;
  height: 12px;
  width: 100%;
}
.ss-skeleton--text   { height: 12px; width: 60%; }
.ss-skeleton--title  { height: 20px; width: 40%; }
.ss-skeleton--circle { border-radius: 50%; width: 40px; height: 40px; }
.ss-skeleton--card   { height: 80px; width: 100%; border-radius: var(--radius-md, 8px); }
@keyframes ss-skeleton-pulse {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ── 30. Keyboard key badge (.ss-kbd) ─────────────────────────────────── */
.ss-kbd {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 2px 6px;
  min-width: 18px;
  border: 1px solid var(--br, var(--br));
  border-bottom-width: 2px;
  border-radius: 4px;
  background: var(--bg2, var(--bg2));
  color: var(--t2, var(--t2));
  font-family: var(--font-mono);
  font-size: var(--fs-caption);
  font-weight: var(--fw-semibold);
  line-height: 1;
  box-sizing: border-box;
  vertical-align: middle;
}