/* =========================================================================
   Steady Chapter — Components
   Calm, paper-warm, generous. All sized for unhurried reading.
   ========================================================================= */

/* =========================
   BUTTONS
   ========================= */
.sc-btn {
  --_bg: var(--accent);
  --_fg: var(--text-on-accent);
  --_bd: var(--accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  font-family: var(--font-body);
  font-size: var(--fs-15);
  font-weight: 500;
  line-height: 1;
  letter-spacing: 0;
  padding: 12px 20px;
  border-radius: var(--r-md);
  border: 1px solid var(--_bd);
  background: var(--_bg);
  color: var(--_fg);
  cursor: pointer;
  text-decoration: none;
  transition:
    background var(--dur-fast) var(--ease-out),
    border-color var(--dur-fast) var(--ease-out),
    color var(--dur-fast) var(--ease-out),
    transform var(--dur-fast) var(--ease-out),
    box-shadow var(--dur-fast) var(--ease-out);
  user-select: none;
}
.sc-btn:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
}
.sc-btn:active {
  background: var(--accent-press);
  border-color: var(--accent-press);
  transform: translateY(1px);
}
.sc-btn:focus-visible {
  outline: none;
  box-shadow: var(--shadow-focus);
}
.sc-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.sc-btn--secondary {
  --_bg: transparent;
  --_fg: var(--text-primary);
  --_bd: var(--border-default);
}
.sc-btn--secondary:hover {
  background: var(--bg-hover);
  border-color: var(--border-strong);
}
.sc-btn--secondary:active {
  background: var(--paper-300);
}

.sc-btn--ghost {
  --_bg: transparent;
  --_fg: var(--text-secondary);
  --_bd: transparent;
}
.sc-btn--ghost:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
  border-color: transparent;
}
.sc-btn--ghost:active {
  background: var(--paper-300);
}

.sc-btn--quiet {
  --_bg: transparent;
  --_fg: var(--accent);
  --_bd: transparent;
  padding: 8px 12px;
}
.sc-btn--quiet:hover {
  background: var(--accent-soft-bg);
  border-color: transparent;
}

.sc-btn--danger {
  --_bg: var(--signal-stop-fg);
  --_fg: #fbf8f2;
  --_bd: var(--signal-stop-fg);
}
.sc-btn--danger:hover {
  background: var(--signal-stop-fg);
  border-color: var(--signal-stop-fg);
  filter: brightness(0.92);
}
.sc-btn--danger:active {
  background: var(--signal-stop-fg);
  border-color: var(--signal-stop-fg);
  filter: brightness(0.84);
}

.sc-btn--lg {
  font-size: var(--fs-16);
  padding: 14px 24px;
}
.sc-btn--sm {
  font-size: var(--fs-14);
  padding: 8px 14px;
  border-radius: var(--r-sm);
}

.sc-btn .icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.sc-text-link {
  color: var(--text-link);
  font-weight: 500;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.sc-text-link:hover {
  color: var(--accent-hover);
}
.sc-text-link:focus-visible {
  border-radius: 2px;
  outline: none;
  box-shadow: var(--shadow-focus);
}

/* =========================
   INPUTS
   ========================= */
.sc-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.sc-label {
  font-size: var(--fs-14);
  font-weight: 500;
  color: var(--text-primary);
}

.sc-hint {
  font-size: var(--fs-13);
  color: var(--text-tertiary);
  line-height: var(--lh-snug);
}

.sc-input,
.sc-textarea,
.sc-select {
  font-family: var(--font-body);
  font-size: var(--fs-15);
  line-height: var(--lh-normal);
  color: var(--text-primary);
  background: var(--bg-raised);
  border: 1px solid var(--border-default);
  border-radius: var(--r-md);
  padding: 11px 14px;
  width: 100%;
  transition:
    border-color var(--dur-fast) var(--ease-out),
    box-shadow var(--dur-fast) var(--ease-out);
}

.sc-input:hover,
.sc-textarea:hover,
.sc-select:hover {
  border-color: var(--border-strong);
}

.sc-input:focus,
.sc-textarea:focus,
.sc-select:focus,
.sc-input:focus-visible,
.sc-textarea:focus-visible,
.sc-select:focus-visible {
  outline: none;
  border-color: var(--accent);
  box-shadow: var(--shadow-focus);
}

.sc-input::placeholder,
.sc-textarea::placeholder {
  color: var(--text-placeholder);
}

.sc-textarea {
  min-height: 120px;
  resize: vertical;
  line-height: var(--lh-relaxed);
}

.sc-textarea--editorial {
  font-family: var(--font-body);
  font-size: var(--fs-18);
  line-height: var(--lh-relaxed);
  background: var(--bg-page);
  border-color: var(--paper-200);
}

/* Search input variant */
.sc-search {
  position: relative;
  display: flex;
  align-items: center;
}
.sc-search .sc-input {
  padding-left: 40px;
}
.sc-search svg {
  position: absolute;
  left: 14px;
  width: 16px;
  height: 16px;
  color: var(--text-tertiary);
  pointer-events: none;
}

/* Checkbox + radio (custom) */
.sc-check {
  display: inline-flex;
  min-height: var(--control-md);
  align-items: center;
  gap: 10px;
  cursor: pointer;
  font-size: var(--fs-15);
  color: var(--text-primary);
}
.sc-check input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}
.sc-check .box {
  width: 18px;
  height: 18px;
  border: 1px solid var(--border-strong);
  border-radius: 5px;
  background: var(--bg-raised);
  display: grid;
  place-items: center;
  transition: all var(--dur-fast) var(--ease-out);
}
.sc-check .box svg {
  opacity: 0;
  color: var(--text-on-accent);
}
.sc-check input:checked + .box {
  background: var(--accent);
  border-color: var(--accent);
}
.sc-check input:checked + .box svg {
  opacity: 1;
}
.sc-check input:focus-visible + .box {
  box-shadow: var(--shadow-focus);
}

/* Toggle */
.sc-toggle {
  display: inline-flex;
  min-height: var(--control-md);
  align-items: center;
  gap: 12px;
  cursor: pointer;
}
.sc-toggle input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}
.sc-toggle .track {
  width: 36px;
  height: 20px;
  border-radius: 999px;
  background: var(--paper-300);
  position: relative;
  transition: background var(--dur-fast) var(--ease-out);
}
.sc-toggle .thumb {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 16px;
  height: 16px;
  background: #ffffff;
  border-radius: 50%;
  box-shadow: var(--shadow-sm);
  transition: transform var(--dur-base) var(--ease-out);
}
.sc-toggle input:checked + .track {
  background: var(--accent);
}
.sc-toggle input:checked + .track .thumb {
  transform: translateX(16px);
}
.sc-toggle input:focus-visible + .track {
  box-shadow: var(--shadow-focus);
}

/* =========================
   CARDS
   ========================= */
.sc-card {
  background: var(--bg-raised);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-lg);
  padding: var(--sp-6);
  transition:
    border-color var(--dur-fast) var(--ease-out),
    box-shadow var(--dur-fast) var(--ease-out);
}
.sc-card:hover {
  border-color: var(--border-default);
  box-shadow: var(--shadow-sm);
}

.sc-card--quiet {
  background: var(--bg-surface);
  border-color: transparent;
}
.sc-card--paper {
  background: var(--paper-100);
  border: 1px solid var(--paper-200);
}

.sc-card-eyebrow {
  font-size: 11px;
  letter-spacing: var(--tracking-caps);
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: var(--sp-2);
  font-weight: 500;
}

.sc-card-title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: var(--fs-20);
  line-height: var(--lh-snug);
  color: var(--text-display);
  margin: 0 0 var(--sp-2);
}

.sc-card-body {
  font-size: var(--fs-15);
  line-height: var(--lh-relaxed);
  color: var(--text-body);
  margin: 0;
}

/* =========================
   BADGES / TAGS
   ========================= */
.sc-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--fs-12);
  font-weight: 500;
  letter-spacing: 0.02em;
  padding: 4px 10px;
  border-radius: var(--r-pill);
  background: var(--bg-surface);
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
  line-height: 1.4;
}

.sc-tag .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  display: inline-block;
}

.sc-tag--accent {
  background: var(--accent-soft-bg);
  color: var(--accent-soft-fg);
  border-color: var(--brand-100);
}
.sc-tag--care {
  background: var(--signal-care-bg);
  color: var(--signal-care-fg);
  border-color: var(--signal-care-line);
}
.sc-tag--warn {
  background: var(--signal-warn-bg);
  color: var(--signal-warn-fg);
  border-color: var(--signal-warn-line);
}
.sc-tag--stop {
  background: var(--signal-stop-bg);
  color: var(--signal-stop-fg);
  border-color: var(--signal-stop-line);
}
.sc-tag--ok {
  background: var(--signal-ok-bg);
  color: var(--signal-ok-fg);
  border-color: var(--signal-ok-line);
}

/* =========================
   ALERTS / CALLOUTS
   ========================= */
.sc-alert {
  display: flex;
  gap: var(--sp-4);
  padding: var(--sp-5);
  border-radius: var(--r-md);
  border: 1px solid var(--border-default);
  background: var(--bg-surface);
}
.sc-alert .icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--text-secondary);
}
.sc-alert-title {
  font-size: var(--fs-15);
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 4px;
}
.sc-alert-body {
  font-size: var(--fs-14);
  line-height: var(--lh-relaxed);
  color: var(--text-body);
  margin: 0;
}

.sc-alert--care {
  background: var(--signal-care-bg);
  border-color: var(--signal-care-line);
}
.sc-alert--care .icon,
.sc-alert--care .sc-alert-title {
  color: var(--signal-care-fg);
}

.sc-alert--warn {
  background: var(--signal-warn-bg);
  border-color: var(--signal-warn-line);
}
.sc-alert--warn .icon,
.sc-alert--warn .sc-alert-title {
  color: var(--signal-warn-fg);
}

.sc-alert--ok {
  background: var(--signal-ok-bg);
  border-color: var(--signal-ok-line);
}
.sc-alert--ok .icon,
.sc-alert--ok .sc-alert-title {
  color: var(--signal-ok-fg);
}

/* =========================
   SAFETY FOOTER (always-on, quiet)
   ========================= */
.sc-safety {
  background: var(--paper-100);
  border-top: 1px solid var(--border-subtle);
  padding: var(--sp-5) var(--sp-6);
  font-size: var(--fs-13);
  color: var(--text-secondary);
  line-height: var(--lh-relaxed);
}
.sc-safety strong {
  color: var(--text-primary);
  font-weight: 600;
}
.sc-safety a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid var(--brand-200);
}
.sc-safety a:hover {
  border-bottom-color: var(--accent);
}

/* =========================
   DOMAIN: Letter analysis card
   ========================= */
.sc-letter {
  background: var(--bg-raised);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-lg);
  overflow: hidden;
}

.sc-letter-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--sp-3) var(--sp-5);
  background: var(--paper-100);
  border-bottom: 1px solid var(--border-subtle);
  font-size: var(--fs-13);
  color: var(--text-tertiary);
  font-family: var(--font-mono);
}

.sc-letter-body {
  padding: var(--sp-6);
  font-family: var(--font-body);
  font-size: var(--fs-16);
  line-height: var(--lh-relaxed);
  color: var(--text-body);
}

.sc-letter-body p {
  margin: 0 0 var(--sp-3);
}

.sc-letter-body mark {
  background: rgba(217, 181, 164, 0.35);
  color: inherit;
  padding: 1px 2px;
  border-radius: 2px;
  border-bottom: 1px dashed var(--signal-care-line);
}

.sc-letter-body mark.warn {
  background: rgba(221, 199, 138, 0.4);
  border-bottom-color: var(--signal-warn-line);
}
.sc-letter-body mark.stop {
  background: rgba(212, 162, 147, 0.4);
  border-bottom-color: var(--signal-stop-line);
}

/* Margin annotation */
.sc-annotation {
  display: flex;
  gap: var(--sp-3);
  padding: var(--sp-3) var(--sp-5);
  background: var(--paper-100);
  border-top: 1px solid var(--border-subtle);
  font-size: var(--fs-13);
  color: var(--text-secondary);
  line-height: var(--lh-relaxed);
}
.sc-annotation .ribbon {
  width: 3px;
  border-radius: 2px;
  background: var(--accent);
  flex-shrink: 0;
}
.sc-annotation.care .ribbon {
  background: var(--signal-care-fg);
}
.sc-annotation.warn .ribbon {
  background: var(--signal-warn-fg);
}
.sc-annotation strong {
  color: var(--text-primary);
  font-weight: 600;
}

/* =========================
   DOMAIN: Cooling-off timer
   ========================= */
.sc-cooling {
  background: var(--paper-100);
  border: 1px solid var(--paper-200);
  border-radius: var(--r-lg);
  padding: var(--sp-6);
  display: flex;
  gap: var(--sp-5);
  align-items: center;
}

.sc-cooling-dial {
  width: 84px;
  height: 84px;
  position: relative;
  flex-shrink: 0;
}
.sc-cooling-dial svg {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}
.sc-cooling-dial circle.track {
  fill: none;
  stroke: var(--paper-300);
  stroke-width: 4;
}
.sc-cooling-dial circle.fill {
  fill: none;
  stroke: var(--accent);
  stroke-width: 4;
  stroke-linecap: round;
  transition: stroke-dashoffset var(--dur-deliberate) var(--ease-out);
}
.sc-cooling-dial .num {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  font-size: var(--fs-24);
  color: var(--text-display);
  letter-spacing: -0.02em;
}

.sc-cooling-text {
  flex: 1;
  min-width: 0;
}
.sc-cooling-title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: var(--fs-18);
  color: var(--text-display);
  margin: 0 0 4px;
}
.sc-cooling-sub {
  font-size: var(--fs-14);
  color: var(--text-secondary);
  line-height: var(--lh-relaxed);
  margin: 0;
}

/* =========================
   DOMAIN: Version history
   ========================= */
.sc-history {
  border-left: 1px solid var(--border-default);
  padding-left: var(--sp-6);
}
.sc-history-item {
  position: relative;
  padding: var(--sp-3) 0;
}
.sc-history-item::before {
  content: "";
  position: absolute;
  left: calc(-1 * var(--sp-6) - 5px);
  top: 18px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--paper-50);
  border: 2px solid var(--border-strong);
}
.sc-history-item.current::before {
  border-color: var(--accent);
  background: var(--accent);
}

.sc-history-meta {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  color: var(--text-tertiary);
  letter-spacing: 0.02em;
}
.sc-history-label {
  font-size: var(--fs-14);
  color: var(--text-primary);
  margin-top: 2px;
}

/* =========================
   NAV / APP CHROME
   ========================= */
.sc-appbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--sp-4) var(--sp-6);
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-page);
}

.sc-wordmark {
  font-family: var(--font-display);
  font-style: normal;
  font-weight: 600;
  font-size: var(--fs-20);
  letter-spacing: var(--tracking-snug);
  color: var(--text-display);
  text-decoration: none;
}

.sc-wordmark-lg {
  font-family: var(--font-display);
  font-style: normal;
  font-weight: 600;
  font-size: var(--fs-30);
  letter-spacing: var(--tracking-snug);
  color: var(--text-display);
  line-height: 1;
}
.sc-wordmark-sub {
  font-family: var(--font-body);
  font-size: 11px;
  letter-spacing: var(--tracking-caps);
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-top: 6px;
  font-weight: 400;
}

/* =========================
   VISUAL STORYTELLING
   Shared marketing and explanation patterns.
   ========================= */

.sc-status-line {
  min-height: 46px;
  display: flex;
  gap: clamp(var(--sp-4), 3vw, var(--sp-10));
  align-items: center;
  padding-block: 11px;
  border-bottom: 1px solid var(--border-default);
  color: var(--text-tertiary);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.sc-status-line strong {
  margin-left: auto;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: var(--fs-12);
  font-weight: 600;
  letter-spacing: 0;
  text-transform: none;
}

.sc-kicker {
  margin: 0 0 var(--sp-5);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.sc-visual-cover {
  display: grid;
  grid-template-columns: minmax(340px, 0.7fr) minmax(560px, 1.3fr);
  gap: clamp(var(--sp-8), 5vw, var(--sp-16));
  align-items: stretch;
}

.sc-visual-cover__copy {
  align-self: center;
  padding-block: clamp(var(--sp-16), 8vw, var(--sp-32));
}

.sc-visual-cover__copy h1,
.sc-visual-cover__title {
  max-width: 9ch;
  margin: 0;
  color: var(--text-display);
  font-family: var(--font-display);
  font-size: clamp(3.45rem, 5.4vw, 5.5rem);
  font-weight: 500;
  letter-spacing: -0.055em;
  line-height: 0.96;
}

.sc-visual-cover__copy > p:not(.sc-kicker) {
  max-width: 440px;
  margin: var(--sp-6) 0 var(--sp-7);
  color: var(--text-secondary);
  font-size: clamp(var(--fs-16), 1.35vw, var(--fs-20));
  line-height: var(--lh-normal);
}

.sc-visual-cover__scene {
  min-width: 0;
  min-height: 620px;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-2xl);
  background: var(--paper-200);
}

.sc-visual-cover__scene > figure {
  position: absolute;
  inset: 0;
  margin: 0;
}

.sc-visual-cover__scene > img,
.sc-visual-cover__scene > figure > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.sc-visual-cover__scene--scrim::after {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    transparent 48%,
    rgba(24, 34, 53, 0.58) 100%
  );
  content: "";
  pointer-events: none;
}

.sc-proof-panel {
  position: absolute;
  z-index: 1;
  right: var(--sp-8);
  bottom: var(--sp-8);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-lg);
  background: var(--bg-raised);
  box-shadow: var(--shadow-lg);
}

.sc-proof-flow {
  width: min(520px, calc(100% - var(--sp-16)));
  color: var(--text-primary);
  background: var(--bg-raised);
  background: color-mix(in srgb, var(--bg-raised) 96%, transparent);
  backdrop-filter: blur(8px);
}

.sc-proof-flow__header {
  min-height: 46px;
  display: flex;
  gap: var(--sp-4);
  align-items: center;
  justify-content: space-between;
  padding: 10px var(--sp-4);
  border-bottom: 1px solid var(--border-subtle);
  background: color-mix(in srgb, var(--brand-50) 72%, transparent);
}

.sc-proof-flow__header span {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.61rem;
  font-weight: 650;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.sc-proof-flow__header strong {
  color: var(--text-secondary);
  font-size: var(--fs-11);
  font-weight: 600;
  white-space: nowrap;
}

.sc-proof-flow__steps {
  margin: 0;
  padding: 0;
  list-style: none;
}

.sc-proof-flow__steps > li {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: var(--sp-3);
  padding: 13px var(--sp-4);
  border-bottom: 1px solid var(--border-subtle);
}

.sc-proof-flow__steps > li > span {
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  border-radius: var(--r-pill);
  color: var(--accent-soft-fg);
  background: var(--accent-soft-bg);
  font-family: var(--font-mono);
  font-size: 0.61rem;
}

.sc-proof-flow__steps strong,
.sc-proof-flow__steps p {
  display: block;
}

.sc-proof-flow__steps strong {
  color: var(--text-primary);
  font-size: var(--fs-13);
  font-weight: 650;
  line-height: var(--lh-snug);
}

.sc-proof-flow__steps p {
  margin: 3px 0 0;
  color: var(--text-secondary);
  font-size: var(--fs-12);
  line-height: 1.45;
}

.sc-proof-flow__steps small {
  width: fit-content;
  display: block;
  margin-top: var(--sp-2);
  padding: 4px 7px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-pill);
  color: var(--accent-soft-fg);
  background: var(--accent-soft-bg);
  font-size: 0.61rem;
  font-weight: 600;
}

.sc-proof-flow__note {
  margin: 0;
  padding: 11px var(--sp-4) 12px;
  color: var(--text-secondary);
  background: var(--paper-100);
  font-size: var(--fs-11);
  font-weight: 600;
  line-height: 1.45;
}

.sc-proof-flow [data-proof-reveal] {
  opacity: 0;
  transform: translateY(8px) scale(0.985);
  animation: sc-proof-flow-reveal var(--dur-slow) var(--ease-out) both;
  animation-iteration-count: 1;
}

.sc-proof-flow__header[data-proof-reveal] {
  animation-delay: 0.12s;
}

.sc-proof-flow__steps > li:nth-child(1) {
  animation-delay: 0.52s;
}

.sc-proof-flow__steps > li:nth-child(2) {
  animation-delay: 0.92s;
}

.sc-proof-flow__steps > li:nth-child(3) {
  animation-delay: 1.32s;
}

.sc-proof-flow__note[data-proof-reveal] {
  animation-delay: 1.72s;
}

@keyframes sc-proof-flow-reveal {
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.sc-step-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--sp-3);
  margin: 0;
  padding: 0;
  list-style: none;
}

.sc-step-strip > li {
  min-height: 148px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: var(--sp-5);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-lg);
  background: var(--bg-raised);
}

.sc-step-strip > li > span {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.66rem;
}

.sc-step-strip > li > strong {
  max-width: 11ch;
  color: var(--text-display);
  font-family: var(--font-display);
  font-size: var(--fs-20);
  font-weight: 500;
  line-height: var(--lh-tight);
}

.sc-visual-sequence {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--sp-4);
  margin: 0;
  padding: 0;
  list-style: none;
}

.sc-visual-sequence > li {
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-xl);
  background: var(--bg-raised);
}

.sc-limit-strip {
  color: var(--paper-50);
  background: var(--brand-700);
}

.sc-limit-strip__inner {
  display: grid;
  grid-template-columns: minmax(240px, 0.7fr) minmax(0, 1.3fr);
  gap: clamp(var(--sp-8), 7vw, var(--sp-24));
  align-items: center;
  padding-block: var(--sp-8);
}

.sc-limit-strip__inner > strong {
  color: var(--paper-50);
  font-family: var(--font-display);
  font-size: var(--fs-20);
  font-weight: 500;
}

.sc-limit-strip__inner > p {
  margin: 0;
  color: var(--brand-200);
  font-size: var(--fs-14);
}

@media (max-width: 1050px) {
  .sc-visual-cover {
    grid-template-columns: 1fr;
  }

  .sc-visual-cover__copy {
    max-width: 760px;
  }

  .sc-visual-cover__scene {
    min-height: 600px;
  }

  .sc-visual-sequence {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 700px) {
  .sc-status-line {
    flex-wrap: wrap;
  }

  .sc-status-line strong {
    text-align: right;
  }

  .sc-visual-cover__copy {
    padding-block: var(--sp-16);
  }

  .sc-visual-cover__copy h1,
  .sc-visual-cover__title {
    font-size: clamp(3rem, 14vw, 4.2rem);
  }

  .sc-visual-cover__scene {
    min-height: 520px;
    border-radius: var(--r-xl);
  }

  .sc-proof-panel {
    right: var(--sp-4);
    bottom: var(--sp-4);
  }

  .sc-step-strip,
  .sc-visual-sequence,
  .sc-limit-strip__inner {
    grid-template-columns: 1fr;
  }

  .sc-step-strip > li {
    min-height: 104px;
  }
}

@media (max-width: 520px) {
  .sc-proof-flow {
    width: calc(100% - var(--sp-8));
    background: var(--bg-raised);
    backdrop-filter: none;
  }

  .sc-proof-flow__header {
    min-height: 0;
    display: grid;
    gap: 2px;
    align-items: start;
  }

  .sc-proof-flow__header strong {
    white-space: normal;
  }

  .sc-proof-flow__steps > li {
    padding: 11px var(--sp-3);
  }
}

/* =========================
   LAYOUT PRIMITIVES
   ========================= */
.sc-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  border: 0;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}

.sc-container {
  width: min(100% - (2 * var(--page-gutter)), var(--content-max));
  margin-inline: auto;
}

.sc-view {
  width: 100%;
  max-width: var(--content-wide);
  margin-inline: auto;
}

.sc-view--narrow {
  max-width: var(--content-narrow);
}
.sc-view--prose {
  max-width: var(--content-prose);
}
.sc-view--wide {
  max-width: var(--content-max);
}

.sc-stack {
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
}

.sc-stack--sm {
  gap: var(--sp-2);
}
.sc-stack--lg {
  gap: var(--sp-8);
}

.sc-cluster {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3);
  align-items: center;
}

.sc-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--sp-6);
}

.sc-grid--2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.sc-grid--3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.sc-grid--4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.sc-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.65fr);
  gap: clamp(var(--sp-8), 5vw, var(--sp-16));
  align-items: start;
}

.sc-divider {
  width: 100%;
  height: 1px;
  border: 0;
  background: var(--border-subtle);
}

/* =========================
   BUTTON EXTENSIONS
   ========================= */
.sc-btn {
  min-height: var(--control-md);
}

.sc-btn--sm {
  min-height: var(--control-md);
}

.sc-btn--lg {
  min-height: var(--control-lg);
}

.sc-btn--block {
  width: 100%;
}

.sc-btn--loading {
  position: relative;
  cursor: wait;
}

.sc-btn--loading:disabled {
  opacity: 0.78;
}

.sc-spinner,
.sc-btn--loading::before {
  width: 16px;
  height: 16px;
  flex: 0 0 auto;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  content: "";
  animation: sc-spin 720ms linear infinite;
}

.sc-icon-btn {
  display: inline-grid;
  width: var(--control-md);
  height: var(--control-md);
  place-items: center;
  padding: 0;
  border: 1px solid var(--border-default);
  border-radius: var(--r-md);
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition:
    color var(--dur-fast) var(--ease-out),
    border-color var(--dur-fast) var(--ease-out),
    background var(--dur-fast) var(--ease-out),
    box-shadow var(--dur-fast) var(--ease-out);
}

.sc-icon-btn:hover {
  border-color: var(--border-strong);
  background: var(--bg-hover);
  color: var(--text-primary);
}

.sc-icon-btn:focus-visible {
  outline: none;
  box-shadow: var(--shadow-focus);
}

.sc-btn-group {
  display: inline-flex;
  align-items: stretch;
}

.sc-btn-group > .sc-btn {
  border-radius: 0;
}

.sc-btn-group > .sc-btn:first-child {
  border-radius: var(--r-md) 0 0 var(--r-md);
}

.sc-btn-group > .sc-btn:last-child {
  border-radius: 0 var(--r-md) var(--r-md) 0;
}

.sc-btn-group > .sc-btn + .sc-btn {
  margin-left: -1px;
}

.sc-segmented {
  display: inline-flex;
  overflow: hidden;
  border: 1px solid var(--border-default);
  border-radius: var(--r-md);
  background: var(--bg-raised);
}

.sc-segmented__option {
  position: relative;
  cursor: pointer;
}

.sc-segmented__option + .sc-segmented__option {
  border-left: 1px solid var(--border-default);
}

.sc-segmented__option > input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.sc-segmented__option > span {
  display: inline-flex;
  min-width: 96px;
  min-height: var(--control-md);
  align-items: center;
  justify-content: center;
  padding: 0 var(--sp-4);
  color: var(--text-primary);
  font-size: var(--fs-14);
  font-weight: 500;
}

.sc-segmented__option:hover > span {
  background: var(--bg-hover);
}

.sc-segmented__option > input:checked + span {
  background: var(--accent);
  color: var(--text-on-accent);
}

@keyframes sc-spin {
  to {
    transform: rotate(360deg);
  }
}

/* =========================
   FORM EXTENSIONS
   ========================= */
.sc-field-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--sp-4);
}

.sc-field__meta {
  display: flex;
  justify-content: space-between;
  gap: var(--sp-3);
  color: var(--text-tertiary);
  font-size: var(--fs-12);
}

.sc-field--error .sc-input,
.sc-field--error .sc-textarea,
.sc-field--error .sc-select {
  border-color: var(--signal-stop-fg);
}

.sc-field--error .sc-hint {
  color: var(--signal-stop-fg);
}

.sc-field--success .sc-input,
.sc-field--success .sc-textarea,
.sc-field--success .sc-select {
  border-color: var(--signal-ok-fg);
}

.sc-input:disabled,
.sc-textarea:disabled,
.sc-select:disabled {
  border-color: var(--border-subtle);
  background: var(--bg-muted);
  color: var(--text-muted);
  cursor: not-allowed;
}

.sc-input-group {
  display: flex;
  align-items: stretch;
}

.sc-input-group .sc-input {
  min-width: 0;
  border-radius: var(--r-md) 0 0 var(--r-md);
}

.sc-input-group .sc-btn {
  flex: 0 0 auto;
  margin-left: -1px;
  border-radius: 0 var(--r-md) var(--r-md) 0;
}

.sc-radio {
  display: inline-flex;
  min-height: var(--control-md);
  align-items: flex-start;
  gap: 10px;
  color: var(--text-primary);
  font-size: var(--fs-15);
  cursor: pointer;
}

.sc-radio input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.sc-radio .disc {
  display: grid;
  width: 19px;
  height: 19px;
  flex: 0 0 auto;
  margin-top: 2px;
  place-items: center;
  border: 1px solid var(--border-strong);
  border-radius: 50%;
  background: var(--bg-raised);
}

.sc-radio .disc::after {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--accent);
  content: "";
  opacity: 0;
  transform: scale(0.55);
  transition:
    opacity var(--dur-fast) var(--ease-out),
    transform var(--dur-fast) var(--ease-out);
}

.sc-radio input:checked + .disc {
  border-color: var(--accent);
}
.sc-radio input:checked + .disc::after {
  opacity: 1;
  transform: scale(1);
}
.sc-radio input:focus-visible + .disc {
  box-shadow: var(--shadow-focus);
}

.sc-choice-card {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--sp-3);
  min-height: 88px;
  padding: var(--sp-4);
  border: 1px solid var(--border-default);
  border-radius: var(--r-lg);
  background: var(--bg-raised);
  cursor: pointer;
}

.sc-choice-card > input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.sc-choice-card > .disc {
  display: grid;
  width: 19px;
  height: 19px;
  place-items: center;
  border: 1px solid var(--border-strong);
  border-radius: 50%;
  background: var(--bg-raised);
}

.sc-choice-card > .disc::after {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--accent);
  content: "";
  opacity: 0;
}

.sc-choice-card > input:checked + .disc {
  border-color: var(--accent);
}
.sc-choice-card > input:checked + .disc::after {
  opacity: 1;
}
.sc-choice-card > input:focus-visible + .disc {
  box-shadow: var(--shadow-focus);
}

.sc-choice-card:has(input:checked) {
  border-color: var(--accent);
  background: var(--accent-soft-bg);
  box-shadow: 0 0 0 1px var(--accent);
}

.sc-choice-card strong,
.sc-choice-card span {
  display: block;
}

.sc-choice-card strong {
  margin-bottom: 3px;
  color: var(--text-primary);
  font-size: var(--fs-15);
}

.sc-choice-card span {
  color: var(--text-secondary);
  font-size: var(--fs-13);
  line-height: var(--lh-normal);
}

/* =========================
   CARDS AND LIST ROWS
   ========================= */
.sc-card:hover {
  border-color: var(--border-subtle);
  box-shadow: none;
}

.sc-card--interactive {
  display: block;
  color: inherit;
  cursor: pointer;
  text-decoration: none;
}

.sc-card--interactive:hover {
  border-color: var(--border-default);
  box-shadow: var(--shadow-sm);
  transform: translateY(-1px);
}

.sc-card--interactive:focus-visible {
  outline: none;
  box-shadow: var(--shadow-focus);
}

.sc-card--selected {
  border-color: var(--accent);
  background: var(--accent-soft-bg);
}

.sc-card__header,
.sc-card__footer {
  display: flex;
  gap: var(--sp-4);
  align-items: center;
  justify-content: space-between;
}

.sc-card__header {
  margin-bottom: var(--sp-4);
}

.sc-card__footer {
  margin: var(--sp-5) calc(-1 * var(--sp-6)) calc(-1 * var(--sp-6));
  padding: var(--sp-4) var(--sp-6);
  border-top: 1px solid var(--border-subtle);
  background: var(--bg-surface);
}

.sc-list {
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-lg);
  background: var(--bg-raised);
}

.sc-list-row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: var(--sp-4);
  align-items: center;
  min-height: 68px;
  padding: var(--sp-3) var(--sp-4);
  color: inherit;
  text-decoration: none;
}

.sc-list-row + .sc-list-row {
  border-top: 1px solid var(--border-subtle);
}
.sc-list-row:hover {
  background: var(--bg-hover);
}
.sc-list-row:focus-visible {
  outline: 0;
  box-shadow: inset var(--shadow-focus);
}

.sc-list-row__icon {
  display: grid;
  width: 36px;
  height: 36px;
  place-items: center;
  border-radius: var(--r-md);
  background: var(--accent-soft-bg);
  color: var(--accent);
}

.sc-list-row__title,
.sc-list-row__meta {
  display: block;
}

.sc-list-row__title {
  color: var(--text-primary);
  font-size: var(--fs-15);
  font-weight: 600;
}

.sc-list-row__meta {
  margin-top: 2px;
  color: var(--text-tertiary);
  font-size: var(--fs-13);
}

/* =========================
   NAVIGATION
   ========================= */
.sc-breadcrumbs ol,
.sc-tabs,
.sc-pagination {
  display: flex;
  align-items: center;
  margin: 0;
  padding: 0;
  list-style: none;
}

.sc-breadcrumbs ol {
  flex-wrap: wrap;
  gap: var(--sp-2);
  color: var(--text-tertiary);
  font-size: var(--fs-13);
}

.sc-breadcrumbs li + li::before {
  margin-right: var(--sp-2);
  color: var(--ink-400);
  content: "/";
}

.sc-breadcrumbs a {
  color: var(--text-link);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.sc-tabs {
  gap: var(--sp-6);
  overflow-x: auto;
  border-bottom: 1px solid var(--border-default);
}

.sc-tab {
  position: relative;
  display: inline-flex;
  min-height: var(--control-md);
  flex: 0 0 auto;
  align-items: center;
  border: 0;
  background: transparent;
  color: var(--text-secondary);
  font: 500 var(--fs-14)/1 var(--font-body);
  text-decoration: none;
  cursor: pointer;
}

.sc-tab[aria-selected="true"],
.sc-tab[aria-current="page"] {
  color: var(--text-primary);
}

.sc-tab[aria-selected="true"]::after,
.sc-tab[aria-current="page"]::after {
  position: absolute;
  right: 0;
  bottom: -1px;
  left: 0;
  height: 2px;
  background: var(--accent);
  content: "";
}

.sc-tab:focus-visible {
  border-radius: var(--r-sm);
  outline: none;
  box-shadow: var(--shadow-focus);
}

.sc-pagination {
  gap: var(--sp-1);
}

.sc-page-link {
  display: grid;
  min-width: var(--control-md);
  height: var(--control-md);
  place-items: center;
  border: 1px solid transparent;
  border-radius: var(--r-md);
  color: var(--text-secondary);
  font-size: var(--fs-14);
  text-decoration: none;
}

.sc-page-link:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}
.sc-page-link[aria-current="page"] {
  border-color: var(--border-default);
  background: var(--bg-raised);
  color: var(--text-primary);
}
.sc-page-link:focus-visible {
  outline: none;
  box-shadow: var(--shadow-focus);
}

/* =========================
   DATA DISPLAY
   ========================= */
.sc-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-lg);
  background: var(--bg-raised);
}

.sc-table {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
  color: var(--text-body);
  font-size: var(--fs-14);
}

.sc-table th,
.sc-table td {
  padding: var(--sp-3) var(--sp-4);
  border-bottom: 1px solid var(--border-subtle);
  text-align: left;
  vertical-align: top;
}

.sc-table th {
  background: var(--bg-surface);
  color: var(--text-secondary);
  font-size: var(--fs-12);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.sc-table tr:last-child td {
  border-bottom: 0;
}

.sc-data-list {
  display: grid;
  grid-template-columns: minmax(120px, 0.4fr) minmax(0, 1fr);
  margin: 0;
}

.sc-data-list dt,
.sc-data-list dd {
  margin: 0;
  padding: var(--sp-3) 0;
  border-bottom: 1px solid var(--border-subtle);
}

.sc-data-list dt {
  color: var(--text-tertiary);
  font-size: var(--fs-13);
}
.sc-data-list dd {
  color: var(--text-primary);
  font-size: var(--fs-14);
}

.sc-avatar {
  display: inline-grid;
  width: 36px;
  height: 36px;
  place-items: center;
  border-radius: 50%;
  background: var(--brand-100);
  color: var(--brand-700);
  font-size: var(--fs-13);
  font-weight: 600;
}

.sc-avatar--sm {
  width: 28px;
  height: 28px;
  font-size: 10px;
}
.sc-avatar--lg {
  width: 48px;
  height: 48px;
  font-size: var(--fs-15);
}

/* =========================
   FEEDBACK AND SYSTEM STATES
   ========================= */
.sc-banner {
  display: flex;
  gap: var(--sp-4);
  align-items: flex-start;
  padding: var(--sp-4) var(--sp-5);
  border-left: 3px solid var(--accent);
  background: var(--accent-soft-bg);
  color: var(--text-body);
}

.sc-banner strong {
  color: var(--text-primary);
}

.sc-progress {
  width: 100%;
  height: 7px;
  overflow: hidden;
  border-radius: var(--r-pill);
  background: var(--paper-200);
}

.sc-progress > span {
  display: block;
  width: var(--progress, 0%);
  height: 100%;
  border-radius: inherit;
  background: var(--accent);
  transition: width var(--dur-slow) var(--ease-out);
}

.sc-skeleton {
  display: block;
  height: 12px;
  overflow: hidden;
  border-radius: var(--r-pill);
  background: linear-gradient(
    90deg,
    var(--paper-200) 25%,
    var(--paper-100) 50%,
    var(--paper-200) 75%
  );
  background-size: 200% 100%;
  animation: sc-shimmer 1.8s var(--ease-in-out) infinite;
}

.sc-empty-state {
  display: grid;
  min-height: 260px;
  place-items: center;
  padding: var(--sp-10);
  border: 1px dashed var(--border-default);
  border-radius: var(--r-lg);
  text-align: center;
}

.sc-empty-state__icon {
  display: grid;
  width: 56px;
  height: 56px;
  margin: 0 auto var(--sp-4);
  place-items: center;
  border-radius: var(--r-xl);
  background: var(--accent-soft-bg);
  color: var(--accent);
}

.sc-empty-state h3 {
  margin: 0 0 var(--sp-2);
  color: var(--text-display);
  font-family: var(--font-display);
  font-size: var(--fs-24);
  font-weight: 500;
}

.sc-empty-state p {
  max-width: 42ch;
  margin: 0 auto var(--sp-5);
  color: var(--text-secondary);
  font-size: var(--fs-14);
  line-height: var(--lh-relaxed);
}

.sc-toast {
  display: flex;
  width: min(100%, 380px);
  gap: var(--sp-3);
  align-items: flex-start;
  padding: var(--sp-4);
  border: 1px solid var(--border-default);
  border-radius: var(--r-lg);
  background: var(--bg-raised);
  box-shadow: var(--shadow-lg);
}

.sc-toast__body {
  min-width: 0;
  flex: 1;
}
.sc-toast strong {
  display: block;
  color: var(--text-primary);
  font-size: var(--fs-14);
}
.sc-toast p {
  margin: 2px 0 0;
  color: var(--text-secondary);
  font-size: var(--fs-13);
}

@keyframes sc-shimmer {
  to {
    background-position-x: -200%;
  }
}

/* =========================
   MENUS AND DIALOGS
   ========================= */
.sc-menu {
  width: min(280px, 100%);
  padding: var(--sp-2);
  border: 1px solid var(--border-default);
  border-radius: var(--r-lg);
  background: var(--bg-raised);
  box-shadow: var(--shadow-lg);
}

.sc-menu__label {
  padding: var(--sp-2) var(--sp-3);
  color: var(--text-tertiary);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: var(--tracking-caps);
  text-transform: uppercase;
}

.sc-menu__item {
  display: flex;
  width: 100%;
  min-height: var(--control-md);
  gap: var(--sp-3);
  align-items: center;
  padding: var(--sp-2) var(--sp-3);
  border: 0;
  border-radius: var(--r-md);
  background: transparent;
  color: var(--text-primary);
  font: inherit;
  font-size: var(--fs-14);
  text-align: left;
  text-decoration: none;
  cursor: pointer;
}

.sc-menu__item:hover,
.sc-menu__item:focus-visible {
  background: var(--bg-hover);
  outline: none;
}
.sc-menu__item--danger {
  color: var(--signal-stop-fg);
}

.sc-dialog {
  width: min(560px, calc(100% - 32px));
  padding: 0;
  border: 1px solid var(--border-default);
  border-radius: var(--r-xl);
  background: var(--bg-raised);
  color: var(--text-body);
  box-shadow: var(--shadow-lg);
}

.sc-dialog::backdrop {
  background: var(--bg-overlay);
  backdrop-filter: blur(2px);
}

.sc-dialog__header,
.sc-dialog__body,
.sc-dialog__footer {
  padding: var(--sp-5) var(--sp-6);
}

.sc-dialog__header {
  display: flex;
  gap: var(--sp-4);
  align-items: flex-start;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-subtle);
}

.sc-dialog__header h2 {
  margin: 0;
  color: var(--text-display);
  font-family: var(--font-display);
  font-size: var(--fs-24);
  font-weight: 500;
}

.sc-dialog__body {
  line-height: var(--lh-relaxed);
}

.sc-dialog__footer {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3);
  justify-content: flex-end;
  border-top: 1px solid var(--border-subtle);
  background: var(--bg-surface);
}

/* =========================
   PAGE AND PRODUCT PATTERNS
   ========================= */
.sc-page-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: var(--sp-6);
  align-items: end;
  margin-bottom: var(--sp-8);
}

.sc-page-header__eyebrow {
  margin: 0 0 var(--sp-2);
  color: var(--text-tertiary);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: var(--tracking-caps);
  text-transform: uppercase;
}

.sc-page-header h1 {
  margin: 0;
  color: var(--text-display);
  font-family: var(--font-display);
  font-size: clamp(var(--fs-38), 5vw, var(--fs-48));
  font-weight: 500;
  letter-spacing: var(--tracking-tight);
  line-height: var(--lh-tight);
}

.sc-page-header__summary {
  max-width: 60ch;
  margin: var(--sp-3) 0 0;
  color: var(--text-secondary);
  line-height: var(--lh-relaxed);
}

.sc-pillar-nav {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  overflow: hidden;
  border: 1px solid var(--border-default);
  border-radius: var(--r-lg);
  background: var(--bg-raised);
}

.sc-pillar-link {
  --_pillar: var(--accent);
  --_pillar-soft: var(--accent-soft-bg);
  position: relative;
  display: flex;
  min-height: 76px;
  gap: var(--sp-3);
  align-items: center;
  padding: var(--sp-4);
  color: var(--text-primary);
  text-decoration: none;
}

.sc-pillar-link + .sc-pillar-link {
  border-left: 1px solid var(--border-subtle);
}
.sc-pillar-link--journey {
  --_pillar: var(--pillar-journey);
  --_pillar-soft: var(--pillar-journey-soft);
}
.sc-pillar-link--decisions {
  --_pillar: var(--pillar-decisions);
  --_pillar-soft: var(--pillar-decisions-soft);
}
.sc-pillar-link--comms {
  --_pillar: var(--pillar-comms);
  --_pillar-soft: var(--pillar-comms-soft);
}
.sc-pillar-link--record {
  --_pillar: var(--pillar-record);
  --_pillar-soft: var(--pillar-record-soft);
}

.sc-pillar-link:hover,
.sc-pillar-link[aria-current="page"] {
  background: var(--_pillar-soft);
}

.sc-pillar-link[aria-current="page"]::after {
  position: absolute;
  right: var(--sp-4);
  bottom: 0;
  left: var(--sp-4);
  height: 3px;
  border-radius: var(--r-pill) var(--r-pill) 0 0;
  background: var(--_pillar);
  content: "";
}

.sc-pillar-link__number {
  color: var(--_pillar);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
}

.sc-pillar-link strong,
.sc-pillar-link small {
  display: block;
}
.sc-pillar-link strong {
  font-size: var(--fs-14);
}
.sc-pillar-link small {
  margin-top: 2px;
  color: var(--text-tertiary);
  font-size: var(--fs-12);
}

.sc-source-ref {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: var(--sp-3);
  align-items: center;
  padding: var(--sp-3) var(--sp-4);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-md);
  background: var(--bg-surface);
}

.sc-source-ref__mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: var(--r-sm);
  background: var(--bg-raised);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
}

.sc-source-ref strong,
.sc-source-ref small {
  display: block;
}
.sc-source-ref strong {
  color: var(--text-primary);
  font-size: var(--fs-14);
}
.sc-source-ref small {
  margin-top: 2px;
  color: var(--text-tertiary);
  font-size: var(--fs-12);
}

.sc-issue-card {
  display: grid;
  grid-template-columns: 4px minmax(0, 1fr);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-lg);
  background: var(--bg-raised);
}

.sc-issue-card__rail {
  background: var(--pillar-decisions);
}
.sc-issue-card__body {
  padding: var(--sp-5);
}

.sc-issue-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--sp-3);
}

.sc-issue-card h3 {
  margin: 0 0 var(--sp-2);
  color: var(--text-display);
  font-family: var(--font-display);
  font-size: var(--fs-20);
  font-weight: 500;
}

.sc-issue-card p {
  margin: 0;
  color: var(--text-secondary);
  font-size: var(--fs-14);
  line-height: var(--lh-relaxed);
}

.sc-document-viewer {
  display: grid;
  grid-template-rows: auto minmax(340px, 1fr);
  overflow: hidden;
  border: 1px solid var(--border-default);
  border-radius: var(--r-lg);
  background: var(--bg-raised);
}

.sc-document-viewer__bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3);
  align-items: center;
  justify-content: space-between;
  padding: var(--sp-3) var(--sp-4);
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-surface);
  color: var(--text-tertiary);
  font-size: var(--fs-12);
}

.sc-document-viewer__page {
  width: min(100% - (2 * var(--sp-6)), 600px);
  min-height: 310px;
  margin: var(--sp-6) auto;
  padding: clamp(var(--sp-6), 6vw, var(--sp-12));
  border: 1px solid var(--border-subtle);
  background: #fff;
  box-shadow: var(--shadow-sm);
  color: var(--text-body);
  font-family: var(--font-body);
  font-size: var(--fs-14);
  line-height: var(--lh-relaxed);
}

.sc-review-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.sc-review-list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--sp-3);
  padding: var(--sp-4) 0;
  border-bottom: 1px solid var(--border-subtle);
}

.sc-review-list li:last-child {
  border-bottom: 0;
}

.sc-review-list__check {
  display: grid;
  width: 24px;
  height: 24px;
  place-items: center;
  border-radius: 50%;
  background: var(--signal-ok-bg);
  color: var(--signal-ok-fg);
  font-size: var(--fs-12);
}

.sc-review-list strong,
.sc-review-list span {
  display: block;
}
.sc-review-list strong {
  color: var(--text-primary);
  font-size: var(--fs-14);
}
.sc-review-list span {
  margin-top: 2px;
  color: var(--text-secondary);
  font-size: var(--fs-13);
}

/* =========================
   MARKETING PATTERNS
   ========================= */
.sc-site-header {
  display: flex;
  min-height: 72px;
  gap: var(--sp-8);
  align-items: center;
  justify-content: space-between;
  padding-inline: var(--page-gutter);
  background: var(--surface-inverse);
  color: var(--text-on-inverse);
}

.sc-site-header__nav {
  display: flex;
  gap: var(--sp-6);
  align-items: center;
}

.sc-site-header a {
  color: inherit;
  text-decoration: none;
}
.sc-site-header__nav > a {
  color: var(--text-inverse-muted);
  font-size: var(--fs-14);
}
.sc-site-header__nav > a:hover {
  color: var(--text-on-inverse);
}

.sc-marketing-hero {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(420px, 1.2fr);
  gap: clamp(var(--sp-8), 6vw, var(--sp-20));
  align-items: center;
  min-height: 620px;
  padding: clamp(var(--sp-16), 8vw, var(--sp-32)) var(--page-gutter);
  background: var(--bg-page);
}

.sc-marketing-hero h1 {
  max-width: 10ch;
  margin: 0;
  color: var(--text-display);
  font-family: var(--font-display);
  font-size: clamp(var(--fs-48), 6vw, 5rem);
  font-weight: 500;
  letter-spacing: -0.045em;
  line-height: 0.98;
}

.sc-marketing-hero__support {
  max-width: 46ch;
  margin: var(--sp-6) 0;
  color: var(--text-secondary);
  font-size: var(--fs-18);
  line-height: var(--lh-relaxed);
}

.sc-marketing-hero__visual {
  min-height: 430px;
  overflow: hidden;
  border-radius: var(--r-2xl);
  background: var(--paper-200);
}

.sc-marketing-hero__visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.sc-proof-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 0;
  padding: 0;
  border-block: 1px solid var(--border-default);
  list-style: none;
}

.sc-proof-strip li {
  padding: var(--sp-5);
  color: var(--text-primary);
  font-size: var(--fs-14);
  text-align: center;
}

.sc-proof-strip li + li {
  border-left: 1px solid var(--border-default);
}

.sc-cta-band {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: var(--sp-8);
  align-items: center;
  padding: clamp(var(--sp-8), 6vw, var(--sp-16));
  border-radius: var(--r-2xl);
  background: var(--surface-inverse);
  color: var(--text-on-inverse);
}

.sc-cta-band h2 {
  margin: 0;
  color: inherit;
  font-family: var(--font-display);
  font-size: clamp(var(--fs-30), 4vw, var(--fs-48));
  font-weight: 500;
  letter-spacing: var(--tracking-tight);
}

.sc-cta-band p {
  max-width: 54ch;
  margin: var(--sp-3) 0 0;
  color: var(--text-inverse-muted);
}

/* =========================
   FOCUS CONTRACT
   ========================= */
:is(
  .sc-btn,
  .sc-text-link,
  .sc-input,
  .sc-textarea,
  .sc-select,
  .sc-icon-btn,
  .sc-card--interactive,
  .sc-list-row,
  .sc-tab,
  .sc-page-link,
  .sc-menu__item,
  .sc-table-wrap
):focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: 2px;
  box-shadow: none;
}

.sc-check input:focus-visible + .box,
.sc-toggle input:focus-visible + .track,
.sc-radio input:focus-visible + .disc,
.sc-choice-card > input:focus-visible + .disc,
.sc-segmented__option > input:focus-visible + span {
  outline: 3px solid var(--focus-ring);
  outline-offset: 2px;
  box-shadow: none;
}

.sc-choice-card:has(input:focus-visible) {
  outline: 3px solid var(--focus-ring);
  outline-offset: 2px;
}

.sc-site-header :focus-visible,
.sc-cta-band :focus-visible {
  outline-color: var(--focus-ring-inverse);
}

@media (max-width: 900px) {
  .sc-split,
  .sc-marketing-hero {
    grid-template-columns: 1fr;
  }

  .sc-grid--4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .sc-pillar-nav {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .sc-pillar-link:nth-child(3) {
    border-left: 0;
  }
  .sc-pillar-link:nth-child(n + 3) {
    border-top: 1px solid var(--border-subtle);
  }

  .sc-marketing-hero {
    min-height: 0;
  }
}

@media (max-width: 700px) {
  .sc-site-header {
    min-height: 64px;
    gap: var(--sp-2);
    padding-inline: var(--sp-4);
  }

  .sc-site-header .sc-wordmark {
    min-width: 0;
    flex-shrink: 1;
    font-size: var(--fs-16);
    white-space: nowrap;
  }

  .sc-site-header__nav {
    flex: 0 0 auto;
  }

  .sc-site-header__nav .sc-btn {
    min-height: 44px;
    padding-inline: var(--sp-3);
    font-size: var(--fs-12);
  }

  .sc-grid--2,
  .sc-grid--3,
  .sc-grid--4,
  .sc-field-row,
  .sc-page-header,
  .sc-cta-band {
    grid-template-columns: 1fr;
  }

  .sc-page-header {
    align-items: start;
  }

  .sc-btn-group {
    display: grid;
    grid-template-columns: 1fr;
  }

  .sc-btn-group > .sc-btn,
  .sc-btn-group > .sc-btn:first-child,
  .sc-btn-group > .sc-btn:last-child {
    margin: -1px 0 0;
    border-radius: 0;
  }

  .sc-btn-group > .sc-btn:first-child {
    margin-top: 0;
    border-radius: var(--r-md) var(--r-md) 0 0;
  }

  .sc-btn-group > .sc-btn:last-child {
    border-radius: 0 0 var(--r-md) var(--r-md);
  }

  .sc-segmented {
    display: grid;
    width: 100%;
    grid-template-columns: 1fr;
  }

  .sc-segmented__option + .sc-segmented__option {
    border-top: 1px solid var(--border-default);
    border-left: 0;
  }

  .sc-segmented__option > span {
    width: 100%;
  }

  .sc-data-list {
    grid-template-columns: 1fr;
  }
  .sc-data-list dt {
    padding-bottom: 0;
    border-bottom: 0;
  }

  .sc-dialog__footer > .sc-btn {
    width: 100%;
  }

  .sc-site-header__nav > a:not(.sc-btn) {
    display: none;
  }

  .sc-marketing-hero {
    padding-block: var(--sp-16);
  }

  .sc-marketing-hero h1 {
    max-width: 13ch;
    font-size: var(--fs-40);
  }

  .sc-marketing-hero__visual {
    min-height: 320px;
  }

  .sc-proof-strip {
    grid-template-columns: 1fr;
  }
  .sc-proof-strip li + li {
    border-top: 1px solid var(--border-default);
    border-left: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .sc-spinner,
  .sc-btn--loading::before,
  .sc-skeleton {
    animation: none;
  }

  .sc-proof-flow [data-proof-reveal] {
    opacity: 1;
    transform: none;
    animation: none !important;
  }
}

@media (forced-colors: active) {
  :focus-visible {
    outline: 3px solid Highlight !important;
    outline-offset: 2px !important;
    box-shadow: none !important;
  }

  .sc-check input:focus-visible + .box,
  .sc-toggle input:focus-visible + .track,
  .sc-radio input:focus-visible + .disc,
  .sc-choice-card > input:focus-visible + .disc,
  .sc-segmented__option > input:focus-visible + span {
    outline: 3px solid Highlight;
    outline-offset: 2px;
    box-shadow: none;
  }
}