/* ============================================================
   TTR Engineering Website — design system v1.0.0
   Palette and layout extracted from the approved mockup (v1.1).
   ============================================================ */

:root {
  --ttr-green: #174c3d;
  --ttr-deep: #0f3529;
  --ttr-charcoal: #282f2d;
  --ttr-ink: #1e2523;
  --ttr-body: #3c4541;
  --ttr-muted: #5f6a64;
  --ttr-tint: #f0f4f1;
  --ttr-tint2: #e4ede7;
  --ttr-line: #dce4de;
  --ttr-cream: #f5f3ee;
  --ttr-font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  --ttr-max: 1152px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--ttr-font);
  color: var(--ttr-body);
  background: #fff;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
p { margin: 0 0 0; }
h1, h2, h3, h4 { color: var(--ttr-ink); margin: 0; }
::selection { background: var(--ttr-green); color: #fff; }

.ttr-wrap { max-width: var(--ttr-max); margin: 0 auto; padding: 0 32px; }
.ttr-site { display: flex; min-height: 100vh; flex-direction: column; }
.ttr-main { flex: 1; }

/* ---------- eyebrow ---------- */
.ttr-eyebrow {
  font-size: 11px; font-weight: 600; letter-spacing: 0.18em;
  text-transform: uppercase; color: var(--ttr-green); margin: 0;
}
.ttr-eyebrow--light { color: rgba(255, 255, 255, 0.8); }

/* ---------- header ---------- */
.ttr-header {
  position: sticky; top: 0; z-index: 50;
  background: #fff; border-bottom: 1px solid rgba(220, 228, 222, 0.7);
}
.ttr-header__bar {
  max-width: var(--ttr-max); margin: 0 auto; padding: 0 32px;
  height: 68px; display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
.ttr-logo { display: inline-flex; align-items: center; gap: 10px; }
.ttr-logo__mark {
  width: 40px; height: 40px; border-radius: 4px; background: var(--ttr-green);
  display: flex; align-items: center; justify-content: center; flex: none;
}
.ttr-logo__mark img { width: 26px; height: auto; }
.ttr-logo__text { line-height: 1; }
.ttr-logo__name {
  display: block; font-size: 19px; font-weight: 800; letter-spacing: 0.02em; color: var(--ttr-ink);
}
.ttr-logo__slogan { display: block; margin-top: 3px; font-size: 7.6px; font-weight: 500; color: var(--ttr-muted); }
.ttr-nav { display: flex; align-items: center; gap: 28px; }
.ttr-nav a {
  font-size: 13px; font-weight: 500; color: var(--ttr-ink); transition: color 0.15s;
}
.ttr-nav a:hover, .ttr-nav a.is-active { color: var(--ttr-green); }
.ttr-nav a.is-active { text-decoration: underline; text-underline-offset: 6px; text-decoration-thickness: 1.5px; }
.ttr-btn {
  display: inline-flex; align-items: center; gap: 8px; border-radius: 6px;
  padding: 12px 20px; font-size: 13.5px; font-weight: 600; cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s; border: 1px solid transparent;
  font-family: var(--ttr-font); line-height: 1.2;
}
.ttr-btn svg { width: 11px; height: 11px; }
.ttr-btn--solid { background: var(--ttr-green); color: #fff; }
.ttr-btn--solid:hover { background: var(--ttr-deep); }
.ttr-btn--header { background: var(--ttr-green); color: #fff; padding: 10px 20px; }
.ttr-btn--header:hover { background: var(--ttr-deep); }
.ttr-btn--outline { border-color: rgba(23, 76, 61, 0.6); color: var(--ttr-green); background: transparent; }
.ttr-btn--outline:hover { background: var(--ttr-green); color: #fff; }
.ttr-btn--ghost { border-color: rgba(255, 255, 255, 0.7); color: #fff; background: transparent; }
.ttr-btn--ghost:hover { background: #fff; color: var(--ttr-green); }
.ttr-btn:disabled { opacity: 0.6; cursor: default; }

.ttr-burger { display: none; background: none; border: 0; padding: 8px; cursor: pointer; color: var(--ttr-ink); }
.ttr-burger svg { width: 24px; height: 24px; }

/* mobile overlay */
.ttr-mnav {
  display: none; position: fixed; inset: 0; top: 68px; background: #fff;
  overflow-y: auto; z-index: 40; padding-bottom: 40px;
}
.ttr-mnav.is-open { display: block; }
body.ttr-nav-lock { overflow: hidden; }
.ttr-mnav__inner { max-width: var(--ttr-max); margin: 0 auto; padding: 8px 20px 40px; }
.ttr-mnav ul { list-style: none; margin: 0; padding: 0; }
.ttr-mnav__primary li { border-bottom: 1px solid var(--ttr-line); }
.ttr-mnav__primary a {
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px 0; font-size: 24px; font-weight: 600; letter-spacing: -0.01em; color: var(--ttr-ink);
}
.ttr-mnav__primary a.is-active, .ttr-mnav__primary a:hover { color: var(--ttr-green); }
.ttr-mnav__primary a svg { width: 16px; height: 16px; color: var(--ttr-green); }
.ttr-mnav__cta {
  margin-top: 24px; display: flex; align-items: center; justify-content: center; gap: 8px;
  background: var(--ttr-green); color: #fff; border-radius: 6px; padding: 14px 20px;
  font-size: 14px; font-weight: 600;
}
.ttr-mnav__secondary { margin-top: 24px; }
.ttr-mnav__secondary li + li { margin-top: 12px; }
.ttr-mnav__secondary a { font-size: 14px; font-weight: 500; color: var(--ttr-green); }
.ttr-mnav__contact { margin-top: 32px; border-top: 1px solid var(--ttr-line); padding-top: 24px; font-size: 13px; color: var(--ttr-muted); }
.ttr-mnav__contact p { margin: 0 0 6px; }

/* ---------- page hero band ---------- */
.ttr-phero { background: var(--ttr-tint); }
.ttr-phero__inner { max-width: var(--ttr-max); margin: 0 auto; padding: 64px 32px 56px; }
.ttr-phero h1 {
  margin-top: 16px; max-width: 760px; font-size: 52px; line-height: 1.08;
  letter-spacing: -0.02em; font-weight: 700;
}
.ttr-phero .ttr-intro { margin-top: 24px; max-width: 640px; font-size: 16px; line-height: 1.65; }
.ttr-phero--crumb { padding-top: 40px; }
.ttr-crumb { font-size: 12px; color: var(--ttr-muted); }
.ttr-crumb a:hover { color: var(--ttr-green); text-decoration: underline; text-underline-offset: 4px; }
.ttr-crumb span.sep { padding: 0 6px; }
.ttr-pcode { margin: 16px 0 0; font-size: 12.5px; font-weight: 600; letter-spacing: 0.08em; color: var(--ttr-muted); }

/* ---------- split editorial row ---------- */
.ttr-row { border-top: 1px solid var(--ttr-line); }
.ttr-row__inner {
  max-width: var(--ttr-max); margin: 0 auto; padding: 36px 32px;
  display: grid; grid-template-columns: 300px 1fr; gap: 48px;
}
.ttr-row h2 { font-size: 24px; font-weight: 700; line-height: 1.35; letter-spacing: -0.01em; color: var(--ttr-green); }
.ttr-row__body { max-width: 768px; font-size: 15px; line-height: 1.7; }
.ttr-row__body p + p { margin-top: 14px; }
.ttr-row__body a { color: var(--ttr-green); font-weight: 500; text-decoration: underline; text-underline-offset: 4px; }
.ttr-row__body strong { color: var(--ttr-ink); font-weight: 600; }
.ttr-row--tint { background: var(--ttr-tint); border-top: 0; }
.ttr-row--tint + .ttr-row--tint { border-top: 1px solid var(--ttr-line); }
.ttr-section-tint { background: var(--ttr-tint); }

/* ---------- def table (about) ---------- */
.ttr-deftable { border-top: 1px solid var(--ttr-line); }
.ttr-deftable__row {
  display: grid; grid-template-columns: 240px 1fr; gap: 32px;
  padding: 16px 0; border-bottom: 1px solid var(--ttr-line);
}
.ttr-deftable dt { font-size: 13px; font-weight: 600; color: var(--ttr-green); }
.ttr-deftable dd { margin: 0; font-size: 14px; color: var(--ttr-body); }

/* ---------- checklists / stacked lists ---------- */
.ttr-stack { list-style: none; margin: 0; padding: 0; }
.ttr-stack li { margin-bottom: 16px; font-size: 15px; line-height: 1.7; }

/* ---------- home hero ---------- */
.ttr-hero { background: var(--ttr-green); color: #fff; }
.ttr-hero__inner {
  max-width: var(--ttr-max); margin: 0 auto; padding: 80px 32px;
  display: grid; grid-template-columns: 1.35fr 1fr; gap: 64px;
}
.ttr-hero h1 {
  margin-top: 20px; color: #fff; font-size: 56px; line-height: 1.05;
  letter-spacing: -0.02em; font-weight: 700;
}
.ttr-hero__right { display: flex; flex-direction: column; justify-content: flex-end; }
.ttr-hero__right p { font-size: 14.5px; line-height: 1.7; color: rgba(255, 255, 255, 0.9); }
.ttr-hero__actions { margin-top: 28px; display: flex; align-items: center; flex-wrap: wrap; gap: 20px; }
.ttr-linkarrow {
  display: inline-flex; align-items: center; gap: 8px; font-size: 13.5px; font-weight: 600;
  color: rgba(255, 255, 255, 0.9);
}
.ttr-linkarrow:hover { color: #fff; text-decoration: underline; text-underline-offset: 4px; }
.ttr-linkarrow--green { color: var(--ttr-green); }
.ttr-linkarrow--green:hover { color: var(--ttr-deep); }
.ttr-arrow { width: 0.72em; height: 0.72em; display: inline-block; }

/* ---------- image bands ---------- */
.ttr-imgband { position: relative; }
.ttr-imgband--hero { height: 460px; }
.ttr-imgband--half { min-height: 420px; height: 100%; }
.ttr-imgband--strip { height: 420px; }
.ttr-imgband img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.ttr-credit {
  max-width: var(--ttr-max); margin: 0 auto; padding: 8px 32px 0;
  font-size: 10.5px; line-height: 1.5; color: rgba(95, 106, 100, 0.8);
}
.ttr-credit--inline { padding: 8px 0 0; }

/* home scope rows */
.ttr-scoperows { margin-top: 48px; }
.ttr-scoperows a {
  display: grid; grid-template-columns: 380px 1fr 24px; align-items: center; gap: 40px;
  padding: 24px 0; border-bottom: 1px solid var(--ttr-line);
}
.ttr-scoperows a:first-child { border-top: 1px solid var(--ttr-line); }
.ttr-scoperows h3 { font-size: 17px; font-weight: 700; color: var(--ttr-green); }
.ttr-scoperows a:hover h3 { text-decoration: underline; text-underline-offset: 4px; }
.ttr-scoperows p { font-size: 13.5px; line-height: 1.65; }
.ttr-scoperows .ttr-arrow { color: var(--ttr-green); }

/* applications split */
.ttr-split { display: grid; grid-template-columns: 1fr 1fr; }
.ttr-split__panel { background: var(--ttr-tint); padding: 64px 56px; display: flex; flex-direction: column; justify-content: center; }
.ttr-split__panel h2 { margin-top: 16px; max-width: 480px; font-size: 36px; line-height: 1.12; letter-spacing: -0.015em; font-weight: 700; }
.ttr-split__panel p { margin-top: 20px; max-width: 480px; font-size: 14.5px; line-height: 1.7; }
.ttr-split__panel .ttr-btn { margin-top: 28px; align-self: flex-start; }

/* home catalog head */
.ttr-cathead { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; }
.ttr-cathead h2 { margin-top: 16px; font-size: 40px; line-height: 1.1; letter-spacing: -0.02em; font-weight: 700; }
.ttr-cathead .ttr-sub { margin-top: 12px; max-width: 600px; font-size: 13.5px; color: var(--ttr-muted); }

/* ---------- product cards ---------- */
.ttr-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 40px; }
.ttr-card {
  border: 1px solid var(--ttr-line); border-radius: 8px; overflow: hidden;
  background: #fff; display: flex; flex-direction: column;
}
.ttr-card__img { position: relative; height: 176px; background: var(--ttr-tint); }
.ttr-card__img img { width: 100%; height: 100%; object-fit: cover; }
.ttr-card__body { padding: 20px; display: flex; flex-direction: column; flex: 1; }
.ttr-card__family { font-size: 10.5px; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ttr-muted); margin: 0; }
.ttr-card__family .sep { padding: 0 4px; color: var(--ttr-line); }
.ttr-card__title { margin-top: 8px; font-size: 17px; font-weight: 700; line-height: 1.35; letter-spacing: -0.01em; }
.ttr-card__title a:hover { color: var(--ttr-green); }
.ttr-card__code { margin-top: 2px; font-size: 11px; font-weight: 500; letter-spacing: 0.06em; color: var(--ttr-muted); }
.ttr-card__dims { margin-top: 12px; font-size: 13px; line-height: 1.6; }
.ttr-card__dims strong { color: var(--ttr-ink); font-weight: 600; }
.ttr-card__unit { margin-top: 6px; font-size: 13px; line-height: 1.6; }
.ttr-card__unit strong { color: var(--ttr-ink); font-weight: 600; }
.ttr-card__status { margin-top: 12px; font-size: 12px; line-height: 1.6; color: var(--ttr-muted); }
.ttr-card__note { margin-top: 6px; font-size: 11.5px; font-style: italic; line-height: 1.55; color: rgba(95, 106, 100, 0.9); }
.ttr-card__action { margin-top: auto; padding-top: 20px; display: inline-flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 600; color: var(--ttr-green); }
.ttr-card__action:hover { text-decoration: underline; text-underline-offset: 4px; }

/* ---------- catalogue controls ---------- */
.ttr-controls { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.ttr-field label {
  display: block; margin-bottom: 8px; font-size: 10.5px; font-weight: 600;
  letter-spacing: 0.16em; text-transform: uppercase; color: var(--ttr-muted);
}
.ttr-input, .ttr-select, .ttr-textarea {
  width: 100%; border: 1px solid var(--ttr-line); border-radius: 6px; background: #fff;
  padding: 12px 16px; font-size: 14px; font-family: var(--ttr-font); color: var(--ttr-ink);
}
.ttr-input::placeholder, .ttr-textarea::placeholder { color: rgba(95, 106, 100, 0.7); }
.ttr-input:focus, .ttr-select:focus, .ttr-textarea:focus {
  outline: none; border-color: var(--ttr-green); box-shadow: 0 0 0 3px rgba(23, 76, 61, 0.15);
}
.ttr-input.is-invalid, .ttr-select.is-invalid, .ttr-textarea.is-invalid { border-color: #ef4444; }
.ttr-pills { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.ttr-pill {
  border: 1px solid var(--ttr-line); background: #fff; color: var(--ttr-ink);
  border-radius: 6px; padding: 8px 16px; font-size: 12.5px; font-weight: 600;
  cursor: pointer; font-family: var(--ttr-font); transition: all 0.15s;
}
.ttr-pill:hover { border-color: rgba(23, 76, 61, 0.4); }
.ttr-pill.is-active { background: var(--ttr-green); border-color: var(--ttr-green); color: #fff; }
.ttr-helper { margin-top: 24px; font-size: 12.5px; color: var(--ttr-muted); }
.ttr-count { margin-top: 32px; font-size: 12px; font-weight: 600; color: var(--ttr-muted); }
.ttr-clear {
  margin-top: 32px; background: none; border: 0; cursor: pointer; font-family: var(--ttr-font);
  font-size: 12.5px; font-weight: 600; color: var(--ttr-green);
  text-decoration: underline; text-underline-offset: 4px; padding: 0;
}
.ttr-empty {
  margin-top: 16px; border: 1px dashed var(--ttr-line); border-radius: 8px;
  background: rgba(240, 244, 241, 0.6); padding: 64px 24px; text-align: center;
}
.ttr-empty p { font-size: 16px; font-weight: 600; color: var(--ttr-ink); margin: 0; }
.ttr-empty .ttr-btn { margin-top: 24px; }

/* common info band */
.ttr-commoninfo { display: grid; grid-template-columns: 300px 1fr; gap: 48px; }
.ttr-commoninfo h2 { font-size: 24px; font-weight: 700; color: var(--ttr-green); }
.ttr-commoninfo dl { margin: 0; max-width: 768px; }
.ttr-commoninfo .ttr-ci { display: grid; grid-template-columns: 200px 1fr; gap: 32px; margin-bottom: 16px; }
.ttr-commoninfo dt { font-size: 13.5px; font-weight: 600; color: var(--ttr-ink); }
.ttr-commoninfo dd { margin: 0; font-size: 13.5px; line-height: 1.65; }

/* ---------- product detail ---------- */
.ttr-product { display: grid; grid-template-columns: 1fr 1.1fr; gap: 64px; }
.ttr-product__media .ttr-frame { position: relative; aspect-ratio: 4 / 3; border-radius: 8px; overflow: hidden; background: var(--ttr-tint); }
.ttr-product__media img { width: 100%; height: 100%; object-fit: cover; }
.ttr-product__note { margin-top: 12px; font-size: 10.5px; color: rgba(95, 106, 100, 0.8); }
.ttr-product__blurb { margin-top: 24px; max-width: 480px; font-size: 14px; line-height: 1.7; }
.ttr-spec > div + div { margin-top: 24px; }
.ttr-spec dt { font-size: 15.5px; font-weight: 700; color: var(--ttr-green); }
.ttr-spec dd { margin: 4px 0 0; font-size: 13.5px; line-height: 1.65; }
.ttr-spec .ttr-spec__common p { margin-bottom: 10px; font-size: 13px; line-height: 1.65; }
.ttr-spec .ttr-spec__common strong { color: var(--ttr-ink); }
.ttr-product__cta { margin-top: 36px; }

/* related concepts */
.ttr-related { list-style: none; margin: 24px 0 0; padding: 0; }
.ttr-related li + li { margin-top: 20px; }
.ttr-related a {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 16px; font-weight: 600; color: var(--ttr-green);
}
.ttr-related a:hover { text-decoration: underline; text-underline-offset: 4px; }
.ttr-related .ttr-relcode { margin-top: 2px; font-size: 12.5px; color: var(--ttr-muted); }

/* ---------- FAQ ---------- */
.ttr-faq { border-top: 1px solid var(--ttr-line); }
.ttr-faq__item { border-bottom: 1px solid var(--ttr-line); }
.ttr-faq__q {
  width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 24px;
  padding: 20px 0; background: none; border: 0; cursor: pointer; text-align: left;
  font-family: var(--ttr-font); font-size: 16px; font-weight: 600; color: var(--ttr-ink);
}
.ttr-faq__icon {
  flex: none; width: 32px; height: 32px; border-radius: 999px; border: 1px solid var(--ttr-line);
  display: flex; align-items: center; justify-content: center; color: var(--ttr-green);
  transition: transform 0.2s;
}
.ttr-faq__item.is-open .ttr-faq__icon { transform: rotate(45deg); }
.ttr-faq__a { display: none; max-width: 768px; padding-bottom: 24px; font-size: 14px; line-height: 1.7; }
.ttr-faq__item.is-open .ttr-faq__a { display: block; }

/* ---------- contact ---------- */
.ttr-contact { display: grid; grid-template-columns: 340px 1fr; gap: 80px; }
.ttr-contact__aside .ttr-phone { font-size: 22px; font-weight: 700; letter-spacing: -0.01em; color: var(--ttr-green); }
.ttr-contact__aside .ttr-phone:hover { text-decoration: underline; text-underline-offset: 4px; }
.ttr-contact__aside p { margin: 0 0 6px; font-size: 13.5px; }
.ttr-office { margin-top: 32px; }
.ttr-office h2 { font-size: 17px; font-weight: 700; color: var(--ttr-green); }
.ttr-office address { font-style: normal; margin-top: 8px; font-size: 13.5px; line-height: 1.7; }
.ttr-office-note { margin-top: 32px; font-size: 11.5px; line-height: 1.65; color: var(--ttr-muted); }
.ttr-form h2 { font-size: 28px; font-weight: 700; letter-spacing: -0.015em; }
.ttr-form__fields { margin-top: 24px; }
.ttr-frow { margin-bottom: 20px; }
.ttr-frow--grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.ttr-flabel { display: block; margin-bottom: 6px; font-size: 12px; font-weight: 600; color: var(--ttr-ink); }
.ttr-flabel .opt { font-weight: 400; color: var(--ttr-muted); }
.ttr-fhint { margin-top: 6px; font-size: 11.5px; color: var(--ttr-muted); }
.ttr-ferror { margin-top: 6px; display: none; font-size: 12px; font-weight: 500; color: #b91c1c; }
.ttr-frow.has-error .ttr-ferror { display: block; }
.ttr-fdivider { border: 0; border-top: 1px solid var(--ttr-line); margin: 28px 0; }
.ttr-fsectlabel { font-size: 10.5px; font-weight: 600; letter-spacing: 0.16em; text-transform: uppercase; color: var(--ttr-muted); margin: 0 0 20px; }
.ttr-filebtn {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  border: 1px solid var(--ttr-line); border-radius: 6px; background: rgba(240, 244, 241, 0.7);
  padding: 12px 16px; cursor: pointer; font-size: 13px;
}
.ttr-filebtn strong { color: var(--ttr-green); font-weight: 600; }
.ttr-filebtn span { color: var(--ttr-muted); font-size: 12px; }
.ttr-filebtn input[type="file"] { position: absolute; width: 1px; height: 1px; opacity: 0; overflow: hidden; clip: rect(0 0 0 0); }
.ttr-check { display: flex; gap: 12px; align-items: flex-start; cursor: pointer; }
.ttr-check input { margin-top: 3px; width: 16px; height: 16px; accent-color: var(--ttr-green); }
.ttr-check span { font-size: 12.5px; line-height: 1.65; }
.ttr-privacyline { font-size: 12.5px; line-height: 1.65; }
.ttr-privacyline a { color: var(--ttr-green); font-weight: 600; text-decoration: underline; text-underline-offset: 4px; }
.ttr-alert { display: none; margin-bottom: 32px; border: 1px solid #fca5a5; background: #fef2f2; color: #991b1b; border-radius: 6px; padding: 16px 20px; font-size: 13.5px; }
.ttr-alert.is-visible { display: block; }
.ttr-ack {
  border: 1px solid var(--ttr-line); border-radius: 8px; background: var(--ttr-tint);
  padding: 56px 64px; text-align: center;
}
.ttr-ack__icon {
  margin: 0 auto; width: 56px; height: 56px; border-radius: 999px; background: var(--ttr-green);
  color: #fff; display: flex; align-items: center; justify-content: center;
}
.ttr-ack__icon svg { width: 24px; height: 24px; }
.ttr-ack h2 { margin-top: 24px; font-size: 24px; font-weight: 700; }
.ttr-ack p { margin: 12px auto 0; max-width: 448px; font-size: 14px; line-height: 1.7; }
.ttr-ack .ttr-linkarrow--green { margin-top: 32px; }

/* ---------- CTA bands ---------- */
.ttr-band { color: #fff; }
.ttr-band--green { background: var(--ttr-green); }
.ttr-band--charcoal { background: var(--ttr-charcoal); }
.ttr-band__inner {
  max-width: var(--ttr-max); margin: 0 auto; padding: 56px 32px;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
.ttr-band h2 { color: #fff; font-size: 32px; line-height: 1.15; letter-spacing: -0.015em; font-weight: 700; max-width: 640px; }
.ttr-band p { margin-top: 12px; font-size: 14px; line-height: 1.7; color: rgba(255, 255, 255, 0.85); max-width: 640px; }
.ttr-band .ttr-btn { flex: none; }
.ttr-band--duo .ttr-band__right { max-width: 640px; }
.ttr-band--duo .ttr-band__right p { margin-top: 0; }

/* clear-specs band (home) */
.ttr-clearband { background: var(--ttr-tint); }
.ttr-clearband__inner {
  max-width: var(--ttr-max); margin: 0 auto; padding: 64px 32px;
  display: grid; grid-template-columns: 1fr 1fr; gap: 64px;
}
.ttr-clearband h2 { font-size: 36px; line-height: 1.12; letter-spacing: -0.015em; font-weight: 700; color: var(--ttr-green); }
.ttr-clearband p { font-size: 14.5px; line-height: 1.7; max-width: 640px; padding-top: 8px; }

/* checklist band (trade) */
.ttr-checkband { background: var(--ttr-tint); }
.ttr-checkband__inner { max-width: var(--ttr-max); margin: 0 auto; padding: 40px 32px; }
.ttr-checkband p { margin-top: 16px; max-width: 768px; font-size: 15px; line-height: 1.7; }

/* ---------- footer ---------- */
.ttr-footer { background: var(--ttr-charcoal); color: #fff; }
.ttr-footer__inner { max-width: var(--ttr-max); margin: 0 auto; padding: 56px 32px 32px; }
.ttr-footer .ttr-logo__mark { background: #fff; }
.ttr-footer .ttr-logo__name { color: #fff; }
.ttr-footer .ttr-logo__slogan { color: rgba(255, 255, 255, 0.75); }
.ttr-footer__contact { margin-top: 32px; font-size: 13.5px; color: rgba(255, 255, 255, 0.85); }
.ttr-footer__contact p { margin: 0 0 4px; }
.ttr-footer__contact a:hover { color: #fff; text-decoration: underline; text-underline-offset: 4px; }
.ttr-footer__contact .pipe { padding: 0 8px; color: rgba(255, 255, 255, 0.4); }
.ttr-footer__nav { margin-top: 36px; }
.ttr-footer__nav ul { list-style: none; display: flex; flex-wrap: wrap; gap: 8px 8px; margin: 0; padding: 0; }
.ttr-footer__nav li { display: flex; align-items: center; gap: 8px; }
.ttr-footer__nav li + li::before { content: "·"; color: rgba(255, 255, 255, 0.35); }
.ttr-footer__nav a { font-size: 13px; color: rgba(255, 255, 255, 0.85); }
.ttr-footer__nav a:hover { color: #fff; text-decoration: underline; text-underline-offset: 4px; }
.ttr-footer__nav--secondary a { color: rgba(255, 255, 255, 0.7); }
.ttr-footer__nav--secondary a:hover { color: #fff; }
.ttr-footer__nav--secondary li + li::before { color: rgba(255, 255, 255, 0.3); }
.ttr-footer__bottom { margin-top: 40px; border-top: 1px solid rgba(255, 255, 255, 0.15); padding-top: 24px; }
.ttr-footer__legal { font-size: 12px; color: rgba(255, 255, 255, 0.6); margin: 0; }
.ttr-footer__legal .pipe { padding: 0 6px; color: rgba(255, 255, 255, 0.3); }
.ttr-footer__credits { margin: 8px 0 0; max-width: 1000px; font-size: 10.5px; line-height: 1.6; color: rgba(255, 255, 255, 0.45); }

/* ---------- responsive ---------- */
@media (max-width: 1024px) {
  .ttr-nav, .ttr-btn--header { display: none; }
  .ttr-burger { display: block; }
  .ttr-hero__inner { grid-template-columns: 1fr; gap: 40px; padding: 56px 24px; }
  .ttr-hero h1 { font-size: 38px; }
  .ttr-phero__inner { padding: 48px 24px 40px; }
  .ttr-phero h1 { font-size: 34px; }
  .ttr-row__inner { grid-template-columns: 1fr; gap: 16px; padding: 32px 24px; }
  .ttr-cards { grid-template-columns: 1fr 1fr; }
  .ttr-controls, .ttr-contact, .ttr-product, .ttr-commoninfo,
  .ttr-clearband__inner, .ttr-split { grid-template-columns: 1fr; }
  .ttr-split__panel { padding: 48px 24px; }
  .ttr-band__inner { flex-direction: column; align-items: flex-start; }
  .ttr-imgband--hero { height: 300px; }
  .ttr-imgband--strip { height: 260px; }
  .ttr-wrap, .ttr-header__bar, .ttr-phero__inner, .ttr-row__inner,
  .ttr-band__inner, .ttr-clearband__inner, .ttr-footer__inner, .ttr-checkband__inner { padding-left: 20px; padding-right: 20px; }
  .ttr-credit { padding-left: 20px; padding-right: 20px; }
}
@media (max-width: 640px) {
  .ttr-hero h1 { font-size: 34px; }
  .ttr-phero h1 { font-size: 30px; }
  .ttr-cards { grid-template-columns: 1fr; }
  .ttr-scoperows a { grid-template-columns: 1fr; gap: 8px; }
  .ttr-scoperows .ttr-arrow { display: none; }
  .ttr-deftable__row, .ttr-commoninfo .ttr-ci { grid-template-columns: 1fr; gap: 4px; }
  .ttr-frow--grid2 { grid-template-columns: 1fr; }
  .ttr-ack { padding: 40px 24px; }
  .ttr-cathead { flex-direction: column; align-items: flex-start; }
  .ttr-contact { gap: 48px; }
}