/* ============================================================
   Tektome — Regulations Research page
   Section 1: Hero. Copy on the left, a source-cited chat mock on
   the right. Light mode, brand tokens only. Loaded after
   nav.css / button.css.
   ============================================================ */

.rr-page {
  flex: 1;
  background: var(--color-draft-white);
  font-family: var(--font-sans);
  color: var(--fg-primary);
}

/* ===================== HERO ===================== */
.rr-hero {
  background: var(--color-draft-white);
}

/* ===================== HERO ENTRANCE ANIMATIONS =====================
   Driven by [data-hero-anim] on .rr-hero (set by the Tweaks panel).
   Gated on prefers-reduced-motion so print / reduced-motion show the
   final state. Brand motion: fades + small slides, ease-out, no bounce. */
@media (prefers-reduced-motion: no-preference) {
  /* shared: hidden pre-state only while a mode is set */
  .rr-hero[data-hero-anim] .rr-hero__copy > *,
  .rr-hero[data-hero-anim] .rr-hero__media { will-change: opacity, transform; }

  /* ---- 1. Rise & fade: copy staggers up, chat follows ---- */
  .rr-hero[data-hero-anim="rise"] .rr-hero__copy > * {
    animation: rrRise 0.6s var(--ease-out) backwards;
  }
  .rr-hero[data-hero-anim="rise"] .rr-hero__badges { animation-delay: 60ms; }
  .rr-hero[data-hero-anim="rise"] .rr-hero__title { animation-delay: 140ms; }
  .rr-hero[data-hero-anim="rise"] .rr-hero__lede { animation-delay: 230ms; }
  .rr-hero[data-hero-anim="rise"] .rr-hero__actions { animation-delay: 320ms; }
  .rr-hero[data-hero-anim="rise"] .rr-hero__trust { animation-delay: 410ms; }
  .rr-hero[data-hero-anim="rise"] .rr-hero__media {
    animation: rrRise 0.7s var(--ease-out) 0.36s backwards;
  }
  @keyframes rrRise { from { opacity: 0; transform: translateY(22px); } to { opacity: 1; transform: none; } }

  /* ---- 2. Converge: copy slides in from left, chat from right ---- */
  .rr-hero[data-hero-anim="converge"] .rr-hero__copy {
    animation: rrFromLeft 0.62s var(--ease-out) 0.05s backwards;
  }
  .rr-hero[data-hero-anim="converge"] .rr-hero__media {
    animation: rrFromRight 0.62s var(--ease-out) 0.16s backwards;
  }
  @keyframes rrFromLeft { from { opacity: 0; transform: translateX(-28px); } to { opacity: 1; transform: none; } }
  @keyframes rrFromRight { from { opacity: 0; transform: translateX(28px); } to { opacity: 1; transform: none; } }

  /* ---- 3. Conversation: copy fades, then chat messages reveal in turn ---- */
  .rr-hero[data-hero-anim="chat"] .rr-hero__copy > * {
    animation: rrFade 0.5s var(--ease-out) backwards;
  }
  .rr-hero[data-hero-anim="chat"] .rr-hero__badges { animation-delay: 40ms; }
  .rr-hero[data-hero-anim="chat"] .rr-hero__title { animation-delay: 110ms; }
  .rr-hero[data-hero-anim="chat"] .rr-hero__lede { animation-delay: 190ms; }
  .rr-hero[data-hero-anim="chat"] .rr-hero__actions { animation-delay: 270ms; }
  .rr-hero[data-hero-anim="chat"] .rr-hero__trust { animation-delay: 350ms; }
  .rr-hero[data-hero-anim="chat"] .rr-hero__media {
    animation: rrFade 0.5s var(--ease-out) 0.2s backwards;
  }
  .rr-hero[data-hero-anim="chat"] .rr-msg {
    animation: rrRise 0.5s var(--ease-out) backwards;
  }
  .rr-hero[data-hero-anim="chat"] .rr-msg:nth-child(1) { animation-delay: 0.5s; }
  .rr-hero[data-hero-anim="chat"] .rr-msg:nth-child(2) { animation-delay: 1.0s; }
  .rr-hero[data-hero-anim="chat"] .rr-msg:nth-child(3) { animation-delay: 1.5s; }
  .rr-hero[data-hero-anim="chat"] .rr-msg:nth-child(4) { animation-delay: 2.0s; }
  @keyframes rrFade { from { opacity: 0; } to { opacity: 1; } }
}
.rr-hero__inner {
  max-width: var(--site-width, 1300px);
  margin: 0 auto;
  padding: clamp(48px, 6vw, 88px) 40px clamp(56px, 7vw, 96px);
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  align-items: center;
  gap: clamp(40px, 5vw, 72px);
}

/* ---- Copy (left) ---- */
.rr-hero__copy { max-width: 600px; }
.rr-hero__badges {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 24px;
}
.rr-badge {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  height: 34px;
  padding: 0 16px;
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: var(--fw-semibold);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  white-space: nowrap;
}
.rr-badge--primary {
  background: var(--purple-50);
  color: var(--color-arch-purple);
}
.rr-badge--primary .rr-badge__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-arch-purple);
}
.rr-hero__eyebrow {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: var(--fw-semibold);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-arch-purple);
  margin: 0 0 24px;
}
.rr-hero__title {
  font-family: var(--font-sans);
  font-weight: var(--fw-light);
  font-size: clamp(40px, 4.6vw, 60px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--color-data-black);
  margin: 0;
  text-wrap: balance;
}
.rr-hero__title .accent { color: var(--color-arch-purple); }
.rr-hero__lede {
  font-size: 18px;
  line-height: 1.6;
  color: var(--fg-secondary);
  margin: 24px 0 0;
  max-width: 52ch;
  text-wrap: pretty;
}
.rr-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 38px;
}

/* Trust row */
.rr-hero__trust {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 40px;
}
.rr-hero__avatars { display: flex; }
.rr-hero__avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: var(--fw-semibold);
  color: var(--color-arch-purple);
  background: var(--purple-50);
  border: 1px solid var(--purple-200);
  margin-left: -8px;
}
.rr-hero__avatar:first-child { margin-left: 0; }
.rr-hero__trust-text {
  font-size: 14px;
  line-height: 1.5;
  color: var(--fg-tertiary);
  text-wrap: pretty;
}

/* ---- Chat mock (right) ---- */
.rr-hero__media {
  background: var(--bg-section-alt);
  border-radius: var(--radius-xl);
  padding: clamp(16px, 1.8vw, 24px);
}
.rr-chat {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.rr-chat__bar {
  display: flex;
  align-items: center;
  padding: 11px 16px;
  border-bottom: 1px solid var(--border-subtle);
  font-family: var(--font-sans);
  font-size: 12.5px;
  font-weight: var(--fw-medium);
  color: var(--fg-secondary);
  background: var(--gray-50);
}
.rr-chat__body {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 16px;
}

/* message rows */
.rr-msg { display: flex; flex-direction: column; }
.rr-msg--you { align-items: flex-end; }
.rr-msg--bot { align-items: flex-start; }
.rr-msg__label {
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.14em;
  color: var(--fg-tertiary);
  margin-top: 4px;
}
.rr-bubble {
  max-width: 88%;
  font-size: 13px;
  line-height: 1.45;
  border-radius: var(--radius-lg);
  padding: 10px 13px;
  text-wrap: pretty;
}
.rr-bubble--you {
  background: var(--color-arch-purple);
  color: var(--color-draft-white);
  border-bottom-right-radius: var(--radius-xs);
}
.rr-bubble--bot {
  background: var(--gray-100);
  color: var(--color-data-black);
  border-bottom-left-radius: var(--radius-xs);
  max-width: 96%;
}

/* source-cited block inside a bot answer */
.rr-source {
  margin-top: 10px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 10px 11px;
}
.rr-source__label {
  display: flex;
  align-items: center;
  gap: 7px;
  font-family: var(--font-mono);
  font-size: 9.5px;
  font-weight: var(--fw-semibold);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-arch-purple);
  margin-bottom: 7px;
}
.rr-source__label svg { width: 13px; height: 13px; }
.rr-source__quote {
  font-size: 12px;
  line-height: 1.45;
  font-style: italic;
  color: var(--color-data-black);
  background: #FBF3C9;
  border-radius: var(--radius-xs);
  padding: 7px 9px;
  margin: 0 0 7px;
}
.rr-source__cite {
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--fg-tertiary);
}

/* input row */
.rr-chat__input {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 2px 16px 16px;
  padding: 10px 12px;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  background: var(--bg-surface);
}
.rr-chat__input span {
  flex: 1;
  font-size: 13.5px;
  color: var(--fg-tertiary);
}
.rr-chat__send {
  width: 30px;
  height: 30px;
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: var(--purple-50);
  color: var(--color-arch-purple);
}
.rr-chat__send svg { width: 16px; height: 16px; }

/* ---- Responsive ---- */
@media (max-width: 960px) {
  .rr-hero__inner { grid-template-columns: 1fr; gap: 40px; }
  .rr-hero__copy { max-width: none; }
}
@media (max-width: 560px) {
  .rr-hero__inner { padding: 40px 24px 56px; }
  .rr-hero__title { font-size: 34px; }
  .rr-hero__actions { gap: 12px; }
  .rr-hero__actions .tk-btn { width: 100%; }
}

/* ===================== 2. KEY FEATURES ===================== */
.rr-features {
  background: var(--color-draft-white);
  padding: clamp(56px, 7vw, 96px) 0;
}
.rr-features__inner {
  max-width: var(--site-width, 1300px);
  margin: 0 auto;
  padding: 0 40px;
}
.rr-features__head {
  text-align: center;
  max-width: 760px;
  margin: 0 auto clamp(48px, 5vw, 72px);
}
.rr-features__eyebrow {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: var(--fw-semibold);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-arch-purple);
  margin: 0 0 22px;
}
.rr-features__title {
  font-family: var(--font-sans);
  font-weight: var(--fw-light);
  font-size: clamp(32px, 3.8vw, 50px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--color-data-black);
  margin: 0;
  text-wrap: balance;
}
.rr-features__sub {
  font-size: 18px;
  line-height: 1.6;
  color: var(--fg-tertiary);
  margin: 22px 0 0;
  text-wrap: pretty;
}

/* Feature rows */
.rr-features__list {
  display: flex;
  flex-direction: column;
  gap: clamp(48px, 6vw, 88px);
}
.rr-feature {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: clamp(36px, 5vw, 72px);
}
.rr-feature:nth-child(even) .rr-feature__media { order: 2; }

/* ===================== FEATURE-BLOCK ANIMATIONS =====================
   Driven by [data-feat-anim] on .rr-features (set by the Tweaks panel).
   Per-block reveal: a JS observer adds .is-in when each .rr-feature
   scrolls into view (one-shot). Hidden pre-state is gated on
   .is-armed (added by JS) so content is never stuck hidden without JS,
   and on prefers-reduced-motion. Brand motion: fades + small slides. */
@media (prefers-reduced-motion: no-preference) {
  /* 1. Lift — block fades up as a whole */
  .rr-features[data-feat-anim="lift"] .rr-feature.is-armed:not(.is-in) {
    opacity: 0;
    transform: translateY(30px);
  }
  .rr-features[data-feat-anim="lift"] .rr-feature {
    transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
  }

  /* 2. Split — media and text slide in from opposite sides, meeting */
  .rr-features[data-feat-anim="split"] .rr-feature.is-armed:not(.is-in) .rr-feature__media { opacity: 0; transform: translateX(-36px); }
  .rr-features[data-feat-anim="split"] .rr-feature.is-armed:not(.is-in) .rr-feature__text  { opacity: 0; transform: translateX(36px); }
  /* even rows have media on the right, so flip their directions */
  .rr-features[data-feat-anim="split"] .rr-feature:nth-child(even).is-armed:not(.is-in) .rr-feature__media { transform: translateX(36px); }
  .rr-features[data-feat-anim="split"] .rr-feature:nth-child(even).is-armed:not(.is-in) .rr-feature__text  { transform: translateX(-36px); }
  .rr-features[data-feat-anim="split"] .rr-feature__media,
  .rr-features[data-feat-anim="split"] .rr-feature__text {
    transition: opacity 0.62s var(--ease-out), transform 0.62s var(--ease-out);
  }

  /* 3. Cascade — media fades up first, then text lines stagger in */
  .rr-features[data-feat-anim="cascade"] .rr-feature.is-armed:not(.is-in) .rr-feature__media { opacity: 0; transform: translateY(24px); }
  .rr-features[data-feat-anim="cascade"] .rr-feature.is-armed:not(.is-in) .rr-feature__text > * { opacity: 0; transform: translateY(16px); }
  .rr-features[data-feat-anim="cascade"] .rr-feature__media { transition: opacity 0.55s var(--ease-out), transform 0.55s var(--ease-out); }
  .rr-features[data-feat-anim="cascade"] .rr-feature__text > * { transition: opacity 0.5s var(--ease-out), transform 0.5s var(--ease-out); }
  .rr-features[data-feat-anim="cascade"] .rr-feature.is-in .rr-feature__text > *:nth-child(1) { transition-delay: 0.16s; }
  .rr-features[data-feat-anim="cascade"] .rr-feature.is-in .rr-feature__text > *:nth-child(2) { transition-delay: 0.24s; }
  .rr-features[data-feat-anim="cascade"] .rr-feature.is-in .rr-feature__text > *:nth-child(3) { transition-delay: 0.32s; }
  .rr-features[data-feat-anim="cascade"] .rr-feature.is-in .rr-feature__text > *:nth-child(4) { transition-delay: 0.40s; }
}

.rr-feature__media {
  background: var(--bg-section-alt);
  border-radius: var(--radius-xl);
  padding: clamp(18px, 2vw, 28px);
}
.rr-feature__media img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
}
.rr-feature__num {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: var(--fw-semibold);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-arch-purple);
  margin: 0 0 16px;
}
.rr-feature__title {
  font-family: var(--font-sans);
  font-weight: var(--fw-regular);
  font-size: clamp(24px, 2.4vw, 30px);
  line-height: 1.18;
  letter-spacing: -0.01em;
  color: var(--color-data-black);
  margin: 0 0 14px;
  text-wrap: pretty;
}
.rr-feature__desc {
  font-size: 16px;
  line-height: 1.6;
  color: var(--fg-secondary);
  margin: 0;
  max-width: 48ch;
  text-wrap: pretty;
}
.rr-feature__points {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.rr-feature__points li {
  position: relative;
  padding-left: 22px;
  font-size: 15px;
  line-height: 1.5;
  color: var(--fg-primary);
  text-wrap: pretty;
}
.rr-feature__points li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 8px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-arch-purple);
}

@media (max-width: 860px) {
  .rr-feature { grid-template-columns: 1fr; gap: 24px; }
  .rr-feature:nth-child(even) .rr-feature__media { order: 0; }
  .rr-feature__media { order: -1; }
}
@media (max-width: 560px) {
  .rr-features__inner { padding: 0 24px; }
  .rr-features__sub { font-size: 16px; }
}

/* ===================== 2.5 HOW IT WORKS (steps) ===================== */
.rr-steps {
  background: var(--color-light-gray);
  padding: clamp(56px, 7vw, 96px) 0;
}
.rr-steps__inner {
  max-width: var(--site-width, 1300px);
  margin: 0 auto;
  padding: 0 40px;
}
.rr-steps__head {
  text-align: center;
  max-width: 760px;
  margin: 0 auto clamp(48px, 5vw, 72px);
}
.rr-steps__eyebrow {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: var(--fw-semibold);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-arch-purple);
  margin: 0 0 22px;
}
.rr-steps__title {
  font-family: var(--font-sans);
  font-weight: var(--fw-light);
  font-size: clamp(32px, 3.8vw, 50px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--color-data-black);
  margin: 0;
  text-wrap: balance;
}
.rr-steps__title .accent { color: var(--color-arch-purple); }

.rr-steps__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0 24px;
}
.rr-step { text-align: center; }
.rr-step__marker {
  position: relative;
  display: flex;
  justify-content: center;
  margin-bottom: 26px;
}
/* connecting line between markers */
.rr-step__marker::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: calc(100% + 24px);
  height: 1.5px;
  background: var(--purple-200);
  z-index: 0;
}
.rr-step:last-child .rr-step__marker::before { display: none; }
.rr-step__num {
  position: relative;
  z-index: 1;
  width: 58px;
  height: 58px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--bg-surface);
  border: 1.5px solid var(--purple-200);
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: var(--fw-semibold);
  color: var(--color-arch-purple);
}
.rr-step__title {
  font-family: var(--font-sans);
  font-weight: var(--fw-semibold);
  font-size: 16px;
  line-height: 1.35;
  color: var(--color-data-black);
  margin: 0 0 12px;
  text-wrap: balance;
}
.rr-step__desc {
  font-size: 14px;
  line-height: 1.6;
  color: var(--fg-tertiary);
  margin: 0 auto;
  max-width: 26ch;
  text-wrap: pretty;
}

@media (max-width: 820px) {
  .rr-steps__grid { grid-template-columns: repeat(2, 1fr); gap: 40px 24px; }
  .rr-step:nth-child(2) .rr-step__marker::before { display: none; }
}
@media (max-width: 460px) {
  .rr-steps__grid { grid-template-columns: 1fr; gap: 32px; }
  .rr-step__marker::before { display: none !important; }
  .rr-steps__inner { padding: 0 24px; }
}

/* ===================== 4. FINAL CTA (Centered — copied from AI BIM Checker) ===================== */
.bim-final {
  padding: clamp(64px, 8vw, 104px) 0;
  background: var(--bg-section-alt);
}
.bim-final__inner {
  max-width: 720px;
  margin: 0 auto;
  background: var(--color-draft-white);
  border: 1px solid var(--purple-200);
  border-radius: var(--radius-xl);
  overflow: hidden;
}
.bim-final__media { height: 200px; }
.bim-final__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.bim-final__head {
  padding: clamp(32px, 4vw, 48px) clamp(32px, 4vw, 52px) 0;
  text-align: center;
}
.bim-final__eyebrow {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: var(--fw-semibold);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-arch-purple);
  margin: 0 0 16px;
}
.bim-final__title {
  font-family: var(--font-sans);
  font-weight: var(--fw-light);
  font-size: clamp(32px, 3.6vw, 48px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--color-data-black);
  margin: 0;
  text-wrap: balance;
}
.bim-final__sub {
  font-size: 17px;
  line-height: 1.6;
  color: var(--fg-tertiary);
  margin: 16px auto 0;
  max-width: 44ch;
  text-wrap: pretty;
}
.bim-final__form {
  padding: 22px clamp(32px, 4vw, 52px) clamp(32px, 4vw, 52px);
}
/* HubSpot embed sets its own height — never constrain it. */
.bim-final__form .hs-form-frame {
  width: 100%;
  min-height: 160px;
}
@media (max-width: 560px) {
  .bim-final__inner { border-radius: var(--radius-lg); }
}

/* ===================== 3. USE CASES ===================== */
.rr-uc {
  background: var(--rr-uc-bg, var(--color-draft-white));
  padding: clamp(56px, 7vw, 96px) 0;
}

/* Use-case cards: scroll-triggered reveal (one-shot per card). Hidden
   pre-state gated on .is-armed (added by JS) + prefers-reduced-motion,
   so cards never get stuck hidden without JS and never fire on load. */
@media (prefers-reduced-motion: no-preference) {
  .rr-uc.is-armed .rr-uc-card {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.55s var(--ease-out), transform 0.55s var(--ease-out);
  }
  .rr-uc.is-armed .rr-uc-card.is-in {
    opacity: 1;
    transform: none;
  }
}
.rr-uc__inner {
  max-width: var(--site-width, 1300px);
  margin: 0 auto;
  padding: 0 40px;
}
.rr-uc__head { max-width: 620px; margin: 0 0 clamp(40px, 4vw, 56px); }
.rr-uc__eyebrow {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: var(--fw-semibold);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-arch-purple);
  margin: 0 0 20px;
}
.rr-uc__title {
  font-family: var(--font-sans);
  font-weight: var(--fw-light);
  font-size: clamp(30px, 3.4vw, 46px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--color-data-black);
  margin: 0;
  text-wrap: balance;
}
.rr-uc__title .accent { color: var(--color-arch-purple); }
.rr-uc__sub {
  font-size: 17px;
  line-height: 1.6;
  color: var(--fg-secondary);
  margin: 18px 0 0;
  text-wrap: pretty;
}

/* Grid of scenario cards */
.rr-uc__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.rr-uc-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  padding: 26px 28px;
}
.rr-uc-card__top {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}
.rr-uc-card__icon {
  flex: 0 0 auto;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: var(--purple-50);
  color: var(--color-arch-purple);
}
.rr-uc-card__icon svg { width: 20px; height: 20px; }
.rr-uc-card__stage {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: var(--fw-semibold);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-arch-purple);
  margin: 0 0 7px;
}
.rr-uc-card__title {
  font-family: var(--font-sans);
  font-weight: var(--fw-medium);
  font-size: 19px;
  line-height: 1.28;
  letter-spacing: -0.01em;
  color: var(--color-data-black);
  margin: 0 0 8px;
  text-wrap: pretty;
}
.rr-uc-card__spec {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--fg-tertiary);
  margin: 0;
}
.rr-uc-card__divider {
  height: 1px;
  background: var(--border-subtle);
  margin: 18px 0;
}
.rr-uc-card__desc {
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--fg-secondary);
  margin: 0 0 16px;
  text-wrap: pretty;
}
.rr-uc-card__example {
  margin-top: auto;
  background: var(--gray-100);
  border-radius: var(--radius-md);
  padding: 14px 16px;
}
.rr-uc-card__example-label {
  display: flex;
  align-items: center;
  gap: 7px;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: var(--fw-semibold);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fg-tertiary);
  margin: 0 0 8px;
}
.rr-uc-card__example-label svg { width: 12px; height: 12px; color: var(--color-arch-purple); }
.rr-uc-card__example-text {
  font-size: 13.5px;
  line-height: 1.55;
  font-style: italic;
  color: var(--fg-secondary);
  margin: 0;
  text-wrap: pretty;
}

@media (max-width: 820px) {
  .rr-uc__grid { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .rr-uc__inner { padding: 0 24px; }
  .rr-uc-card { padding: 22px 20px; }
  .rr-uc__sub { font-size: 16px; }
}

/* ---- Layout variants (driven by the Tweaks panel) ---- */
/* a = 2-column cards (default, defined above) */

/* b = single-column horizontal rows: meta left, content right */
.rr-uc[data-uc-variant="b"] .rr-uc__grid { grid-template-columns: 1fr; }
.rr-uc[data-uc-variant="b"] .rr-uc-card {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 0 36px;
  align-items: start;
}
.rr-uc[data-uc-variant="b"] .rr-uc-card__divider { display: none; }
.rr-uc[data-uc-variant="b"] .rr-uc-card__desc { margin-top: 0; }
.rr-uc[data-uc-variant="b"] .rr-uc-card__top { grid-row: span 2; }

/* c = compact 4-up columns, example hidden */
.rr-uc[data-uc-variant="c"] .rr-uc__grid { grid-template-columns: repeat(4, 1fr); gap: 16px; }
.rr-uc[data-uc-variant="c"] .rr-uc-card { padding: 22px 20px; }
.rr-uc[data-uc-variant="c"] .rr-uc-card__top { flex-direction: column; gap: 14px; }
.rr-uc[data-uc-variant="c"] .rr-uc-card__divider { margin: 14px 0; }
.rr-uc[data-uc-variant="c"] .rr-uc-card__title { font-size: 17px; }
.rr-uc[data-uc-variant="c"] .rr-uc-card__example { display: none; }
.rr-uc[data-uc-variant="c"] .rr-uc-card__desc { margin-bottom: 0; }

@media (max-width: 980px) {
  .rr-uc[data-uc-variant="c"] .rr-uc__grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 760px) {
  .rr-uc[data-uc-variant="b"] .rr-uc-card { grid-template-columns: 1fr; gap: 16px; }
  .rr-uc[data-uc-variant="b"] .rr-uc-card__top { grid-row: auto; }
  .rr-uc[data-uc-variant="c"] .rr-uc__grid { grid-template-columns: 1fr; }
}