/* ============================================================
   Banktrace — marketing site styles
   Uses tokens from assets/colors_and_type.css
   ============================================================ */

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font-sans);
  font-size: var(--fs-16);
  line-height: var(--lh-normal);
  color: var(--fg-1);
  background: var(--surface-0);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}
a { color: inherit; text-decoration: none; }
button { font-family: inherit; }
img { display: block; max-width: 100%; }

/* utilities ------------------------------------------------ */
.wrap { max-width: var(--content-max-mkt); margin: 0 auto; padding: 0 32px; }
.eyebrow {
  font-size: var(--fs-12); font-weight: var(--fw-semibold);
  letter-spacing: 0.1em; text-transform: uppercase; color: var(--fg-3);
}

/* HEADER --------------------------------------------------- */
.bt-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,0.92);
  backdrop-filter: saturate(160%) blur(8px);
  -webkit-backdrop-filter: saturate(160%) blur(8px);
  border-bottom: 1px solid var(--border-1);
}
.bt-header__inner {
  max-width: var(--content-max-mkt);
  margin: 0 auto; padding: 0 32px;
  height: 72px; display: flex; align-items: center; gap: 40px;
}
.bt-header__logo img { height: 22px; width: auto; }
.bt-header__nav { display: flex; gap: 28px; }
.bt-header__nav a {
  font-size: var(--fs-14); font-weight: var(--fw-medium); color: var(--fg-2);
  padding: 6px 0; position: relative;
  transition: color var(--dur-micro) var(--ease-standard);
}
.bt-header__nav a:hover { color: var(--fg-1); }
.bt-header__nav a.is-active { color: var(--fg-1); }
.bt-header__right { margin-left: auto; display: flex; align-items: center; gap: 14px; }

/* language switch — flag icons */
.bt-lang { display: flex; gap: 6px; padding-right: 14px; border-right: 1px solid var(--border-1); }
.bt-flag {
  width: 26px; height: 18px; padding: 0; border-radius: 3px; overflow: hidden;
  border: 1px solid var(--border-2); background: #fff; cursor: pointer;
  opacity: 0.55; transition: opacity var(--dur-micro) var(--ease-standard), border-color var(--dur-micro) var(--ease-standard), box-shadow var(--dur-micro) var(--ease-standard);
  display: block;
}
.bt-flag:hover { opacity: 0.85; }
.bt-flag.is-active { opacity: 1; border-color: var(--bt-navy); box-shadow: 0 0 0 2px var(--accent-soft); }
.bt-flag svg { display: block; width: 100%; height: 100%; }

/* HERO ----------------------------------------------------- */
.bt-hero {
  padding: 80px 0 100px;
  background:
    radial-gradient(1100px 600px at 80% -10%, #F4F5F8 0%, transparent 60%),
    var(--surface-0);
  position: relative;
  overflow: hidden;
}
.bt-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: 56px;
  align-items: center;
}
.bt-hero h1 {
  font-family: var(--font-sans);
  font-weight: var(--fw-semibold);
  font-size: clamp(44px, 5.6vw, 72px);
  line-height: 1.02;
  letter-spacing: -0.025em;
  margin: 20px 0 24px;
  color: var(--fg-1);
}
.bt-hero h1 .accent {
  color: var(--bt-navy);
  position: relative; display: inline-block; white-space: nowrap;
}
.bt-hero h1 .accent::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0.08em;
  height: 0.18em; background: var(--accent-soft); z-index: -1;
}
.bt-hero__lede { font-size: var(--fs-20); line-height: 1.55; color: var(--fg-2); margin: 0 0 32px; max-width: 540px; }
.bt-hero__ctas { display: flex; gap: 12px; margin-bottom: 36px; flex-wrap: wrap; }
.bt-hero__proof { display: flex; align-items: center; gap: 14px; font-size: var(--fs-13); color: var(--fg-3); }
.bt-hero__proof-dots { display: flex; }
.bt-hero__proof-dot {
  width: 28px; height: 28px; border-radius: 50%;
  border: 2px solid #fff; background: var(--surface-2);
  margin-left: -8px;
}
.bt-hero__proof-dot:first-child { margin-left: 0; }

/* buttons -------------------------------------------------- */
.bt-btn {
  display: inline-flex; align-items: center; gap: 10px;
  height: 48px; padding: 0 22px;
  font-size: var(--fs-15); font-weight: var(--fw-semibold);
  border-radius: var(--r-3); border: 1px solid transparent;
  cursor: pointer; transition: background var(--dur-micro) var(--ease-standard), border-color var(--dur-micro) var(--ease-standard), color var(--dur-micro) var(--ease-standard);
  white-space: nowrap;
}
.bt-btn--sm { height: 36px; padding: 0 14px; font-size: var(--fs-13); }
.bt-btn--md { height: 40px; padding: 0 16px; font-size: var(--fs-14); }
.bt-btn--primary { background: var(--bt-navy); color: #fff; }
.bt-btn--primary:hover { background: var(--bt-navy-hover); }
.bt-btn--primary:active { background: var(--bt-navy-press); }
.bt-btn--secondary { background: var(--surface-0); color: var(--fg-1); border-color: var(--border-2); }
.bt-btn--secondary:hover { background: var(--surface-2); border-color: var(--border-3); }
.bt-btn--ghost { background: transparent; color: var(--fg-1); }
.bt-btn--ghost:hover { background: var(--surface-2); }
.bt-btn--onDark { background: #fff; color: var(--bt-navy); }
.bt-btn--onDark:hover { background: var(--fg-on-dark-2); }
.bt-btn--ghostDark { background: transparent; color: #fff; border-color: rgba(255,255,255,0.25); }
.bt-btn--ghostDark:hover { background: rgba(255,255,255,0.08); border-color: rgba(255,255,255,0.4); }
.bt-btn .arrow { display: inline-flex; transition: transform var(--dur-micro) var(--ease-standard); }
.bt-btn:hover .arrow { transform: translateX(2px); }

/* REPORT MOCK (hero right) -------------------------------- */
.bt-mock {
  background: #fff;
  border: 1px solid var(--border-1);
  border-radius: var(--r-4);
  box-shadow: var(--shadow-3);
  overflow: hidden;
  position: relative;
  transform: rotate(0.2deg);
  /* Floating shadow ring */
}
.bt-mock::before {
  content: ""; position: absolute; inset: -1px; border-radius: var(--r-4);
  border: 1px solid var(--border-1); pointer-events: none; opacity: 0.4;
}
.bt-mock__chrome {
  display: flex; align-items: center; gap: 8px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-1);
  background: var(--surface-1);
}
.bt-mock__dot { width: 10px; height: 10px; border-radius: 50%; }
.bt-mock__dot--r { background: #FC615D; }
.bt-mock__dot--y { background: #FDBC40; }
.bt-mock__dot--g { background: #34C748; }
.bt-mock__url {
  margin-left: 16px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  color: var(--fg-3);
  background: var(--surface-0);
  padding: 4px 10px;
  border-radius: var(--r-3);
  border: 1px solid var(--border-1);
  flex: 1;
  max-width: 340px;
}
.bt-mock__body { display: grid; grid-template-columns: 180px 1fr; min-height: 480px; }
.bt-mock__sidebar { background: var(--surface-1); border-right: 1px solid var(--border-1); padding: 16px 12px; font-size: var(--fs-13); }
.bt-mock__sidebar-section { margin-bottom: 18px; }
.bt-mock__sidebar-label {
  font-size: 10px; letter-spacing: 0.08em; text-transform: uppercase;
  font-weight: var(--fw-semibold); color: var(--fg-3); padding: 0 8px; margin-bottom: 6px;
}
.bt-mock__sidebar-item {
  display: flex; align-items: center; gap: 10px;
  padding: 7px 10px; border-radius: var(--r-2);
  color: var(--fg-2); font-size: var(--fs-13);
}
.bt-mock__sidebar-item.is-active { background: var(--surface-2); color: var(--fg-1); font-weight: var(--fw-semibold); }
.bt-mock__sidebar-item .num { font-family: var(--font-mono); font-size: 10px; color: var(--fg-3); margin-left: auto; }

.bt-mock__main { padding: 24px 28px; min-width: 0; }
.bt-mock__title-row { display: flex; align-items: baseline; gap: 12px; margin-bottom: 6px; }
.bt-mock__title { font-size: var(--fs-18); font-weight: var(--fw-semibold); color: var(--fg-1); }
.bt-mock__meta { font-family: var(--font-mono); font-size: var(--fs-12); color: var(--fg-3); }
.bt-mock__lede { font-size: var(--fs-13); color: var(--fg-2); line-height: var(--lh-normal); margin: 0 0 18px; }
.bt-mock__lede mark { background: var(--accent-soft); color: var(--bt-navy); padding: 0 3px; border-radius: 2px; }

.bt-mock__observation {
  display: flex; gap: 12px; padding: 12px 14px; border-radius: var(--r-3);
  border: 1px solid #D6DEFF; background: #F6F8FF;
  margin: 16px 0; font-size: var(--fs-13); line-height: 1.5; color: var(--fg-1);
}
.bt-mock__observation::before {
  content: "Notabel —"; font-size: 10px; letter-spacing: 0.08em; text-transform: uppercase;
  font-weight: var(--fw-bold); color: var(--accent); white-space: nowrap; padding-top: 2px;
}

.bt-mock__table { width: 100%; border-collapse: collapse; font-size: var(--fs-12); margin-top: 8px; }
.bt-mock__table th {
  text-align: left; font-weight: var(--fw-semibold); color: var(--fg-3);
  padding: 8px 8px; border-bottom: 1px solid var(--border-1);
  font-size: 10px; letter-spacing: 0.06em; text-transform: uppercase;
}
.bt-mock__table td {
  padding: 8px 8px; border-bottom: 1px solid var(--border-1); color: var(--fg-1); font-size: var(--fs-12);
}
.bt-mock__table tr:hover td { background: var(--surface-1); }
.bt-mock__table td.amt { font-family: var(--font-mono); text-align: right; }
.bt-mock__table td.amt.neg { color: var(--danger-fg); }
.bt-mock__table td.amt.pos { color: var(--success-fg); }
.bt-mock__table tr.flag td { background: #FFFBEB; }
.bt-mock__table tr.flag td:first-child { box-shadow: inset 2px 0 0 var(--warn); }

/* small hovering chips/badges around the mock */
.bt-mock-deco {
  position: absolute;
  background: #fff;
  border: 1px solid var(--border-1);
  border-radius: var(--r-3);
  padding: 10px 14px;
  font-size: var(--fs-12);
  box-shadow: var(--shadow-2);
  display: flex; align-items: center; gap: 10px;
}
.bt-mock-deco--tl { top: 24px; left: -32px; transform: rotate(-2deg); }
.bt-mock-deco--br { bottom: 20px; right: -28px; transform: rotate(1.5deg); }
.bt-mock-deco__dot { width: 8px; height: 8px; border-radius: 50%; background: var(--success); }
.bt-mock-deco__dot--warn { background: var(--warn); }

/* PRODUCTS SECTION — two products side-by-side, no images */
.bt-products { padding: 112px 0; }
.bt-products__head {
  display: flex; justify-content: space-between; align-items: flex-end;
  gap: 48px; margin-bottom: 64px;
}
.bt-products__head-left { max-width: 600px; }
.bt-products__head h2 {
  font-family: var(--font-sans);
  font-weight: var(--fw-semibold);
  font-size: clamp(32px, 3.6vw, 48px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 12px 0 0;
  color: var(--fg-1);
}
.bt-products__head-right {
  max-width: 380px;
  font-size: var(--fs-15);
  color: var(--fg-2);
  line-height: 1.55;
  padding-bottom: 6px;
}
.bt-products__lede {
  margin: 24px 0 0;
  font-size: var(--fs-18);
  color: var(--fg-2);
  line-height: 1.55;
  max-width: 900px;
}
.bt-products__lede-list {
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
  max-width: 900px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.bt-products__lede-list li {
  position: relative;
  padding-left: 22px;
  font-size: var(--fs-18);
  color: var(--fg-2);
  line-height: 1.55;
}
.bt-products__lede-list li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 0.7em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--fg-3);
}
.bt-products__lede-term {
  color: var(--fg-1);
  font-weight: var(--fw-semibold);
}

.bt-products__table {
  display: grid;
  grid-template-columns: 220px 1fr 1fr;
  border-top: 1px solid var(--border-1);
}
.bt-products__cell {
  padding: 24px 28px;
  border-bottom: 1px solid var(--border-1);
  border-right: 1px solid var(--border-1);
  font-size: var(--fs-15);
  color: var(--fg-1);
  line-height: 1.55;
}
.bt-products__cell:nth-child(3n) { border-right: 0; }

.bt-products__cell--row-head {
  font-family: var(--font-mono); font-size: var(--fs-12);
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--fg-3);
  background: var(--surface-1);
}
.bt-products__cell--col-head {
  padding-top: 40px; padding-bottom: 28px;
}
.bt-products__cell--corner {
  background: var(--surface-1);
  border-bottom: 1px solid var(--border-1);
}
.bt-products__cell--footer {
  padding-top: 24px;
  padding-bottom: 24px;
  border-bottom: 0;
}
.bt-products__col-eyebrow {
  font-family: var(--font-mono); font-size: var(--fs-12);
  color: var(--fg-3); letter-spacing: 0.08em; text-transform: uppercase;
  margin-bottom: 14px;
  display: inline-flex; align-items: center; gap: 10px;
}
.bt-products__col-eyebrow::before {
  content: ""; width: 24px; height: 1px; background: var(--border-3);
}
.bt-products__col-title {
  font-family: var(--font-sans);
  font-weight: var(--fw-semibold);
  font-size: clamp(28px, 2.6vw, 36px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 0;
  color: var(--fg-1);
}
.bt-products__link {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: var(--fs-15); font-weight: var(--fw-semibold);
  color: var(--accent);
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  transition: border-color var(--dur-micro) var(--ease-standard);
}
.bt-products__link:hover { border-bottom-color: var(--accent); }
.bt-products__link .arrow { transition: transform var(--dur-micro) var(--ease-standard); }
.bt-products__link:hover .arrow { transform: translateX(2px); }

@media (max-width: 980px) {
  .bt-products { padding: 80px 0; }
  .bt-products__head { flex-direction: column; align-items: flex-start; gap: 16px; margin-bottom: 40px; }
  .bt-products__table { grid-template-columns: 1fr; }
  .bt-products__cell { border-right: 0; }
  .bt-products__cell--corner { display: none; }
}

/* BANK STRIP ---------------------------------------------- */
.bt-banks {
  background: var(--surface-1);
  border-top: 1px solid var(--border-1);
  border-bottom: 1px solid var(--border-1);
  padding: 28px 0;
}
.bt-banks__inner { display: flex; align-items: center; gap: 36px; }
.bt-banks__label { flex-shrink: 0; max-width: 140px; line-height: 1.4; }
.bt-banks__marquee {
  flex: 1; overflow: hidden;
  mask-image: linear-gradient(to right, transparent 0, #000 60px, #000 calc(100% - 60px), transparent 100%);
  -webkit-mask-image: linear-gradient(to right, transparent 0, #000 60px, #000 calc(100% - 60px), transparent 100%);
}
.bt-banks__track {
  display: flex; gap: 56px; align-items: center; width: max-content;
  animation: bt-marquee 38s linear infinite;
}
.bt-banks__track:hover { animation-play-state: paused; }
@keyframes bt-marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}
.bt-bank {
  flex-shrink: 0; display: flex; align-items: center;
  height: 32px;
  opacity: 0.65;
  transition: opacity var(--dur-micro) var(--ease-standard);
}
.bt-bank:hover { opacity: 1; }
.bt-bank img {
  height: 28px; width: auto; max-width: 140px;
  display: block;
  filter: grayscale(100%);
  transition: filter var(--dur-micro) var(--ease-standard);
}
.bt-bank:hover img { filter: grayscale(0%); }

/* SECTION SCAFFOLDING ------------------------------------- */
.bt-section { padding: 112px 0; }
.bt-section--tight { padding: 80px 0; }
.bt-section__head {
  display: flex; justify-content: space-between; align-items: flex-end;
  gap: 48px; margin-bottom: 56px;
}
.bt-section__head-left { max-width: 560px; }
.bt-section__head h2 {
  font-family: var(--font-sans);
  font-weight: var(--fw-semibold);
  font-size: clamp(32px, 3.6vw, 48px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 12px 0 0;
  color: var(--fg-1);
}
.bt-section__head-right {
  max-width: 380px; font-size: var(--fs-15); color: var(--fg-2);
  line-height: 1.55; padding-bottom: 6px;
}

/* TIMELINE (Werkwijze) ----------------------------------- */
.bt-timeline { position: relative; display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.bt-timeline::before {
  content: ""; position: absolute;
  left: 50px; right: 50px; top: 49px; height: 1px;
  background: repeating-linear-gradient(to right, var(--fg-3) 0 6px, transparent 6px 12px);
  z-index: 0;
}
.bt-step { position: relative; padding: 0 16px; }
.bt-step__node {
  position: relative; z-index: 1;
  width: 99px; height: 99px;
  border-radius: 50%;
  background: var(--surface-0);
  border: 1px solid var(--border-2);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 28px;
  box-shadow: var(--shadow-1);
}
.bt-step__node {
  color: var(--bt-navy);
}
.bt-step__node .num {
  font-family: var(--font-mono); font-size: var(--fs-14);
  color: var(--fg-3); position: absolute; top: 10px; left: 16px;
}
.bt-step__node.bt-step__node--shade-1 { border-color: var(--border-2); }
.bt-step__node.bt-step__node--shade-2 { border-color: var(--border-3); }
.bt-step__node.bt-step__node--shade-3 { border-color: var(--fg-3); }
.bt-step__node.bt-step__node--shade-4 { border-color: var(--bt-navy); }
.bt-step__node.bt-step__node--shade-4 .num { color: var(--bt-navy); }
.bt-step__icons {
  display: flex;
  align-items: center;
  gap: 6px;
  color: inherit;
}
.bt-step h3 {
  font-size: var(--fs-18); font-weight: var(--fw-semibold);
  margin: 0 0 8px; text-align: center; color: var(--fg-1);
  letter-spacing: -0.01em;
}
.bt-step p { font-size: var(--fs-14); color: var(--fg-2); line-height: 1.55; margin: 0; text-align: center; }
.bt-step__output {
  display: inline-block; margin-top: 14px;
  font-family: var(--font-mono); font-size: var(--fs-12); color: var(--fg-3);
  padding: 3px 8px; border: 1px solid var(--border-1); border-radius: var(--r-2);
  background: var(--surface-1);
}
.bt-step__output-wrap { text-align: center; }

/* FEATURES grid ------------------------------------------- */
.bt-features-wrap {
  border: 1px solid var(--border-1);
  border-radius: var(--r-4);
  background: var(--surface-0);
  overflow: hidden;
}
.bt-features { display: grid; grid-template-columns: repeat(3, 1fr); }
.bt-feature {
  padding: 36px 32px;
  border-right: 1px solid var(--border-1);
  border-bottom: 1px solid var(--border-1);
  min-height: 240px;
  display: flex; flex-direction: column;
  position: relative;
  transition: background var(--dur-micro) var(--ease-standard);
}
.bt-feature:hover { background: var(--surface-1); }
.bt-feature:nth-child(3n) { border-right: 0; }
.bt-feature:nth-last-child(-n+3) { border-bottom: 0; }
.bt-feature__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
}
.bt-feature__num {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  color: var(--fg-3);
  letter-spacing: 0.06em;
  text-align: right;
  padding-top: 12px;
}
.bt-feature__icon {
  width: 36px; height: 36px;
  border: 1px solid var(--border-2);
  border-radius: var(--r-3);
  display: flex; align-items: center; justify-content: center;
  color: var(--bt-navy);
  background: var(--surface-0);
  flex-shrink: 0;
}
.bt-feature h3 {
  font-size: var(--fs-20); font-weight: var(--fw-semibold);
  margin: 0 0 10px; color: var(--fg-1); letter-spacing: -0.01em;
}
.bt-feature p { font-size: var(--fs-14); color: var(--fg-2); line-height: 1.55; margin: 0; }
.bt-feature__link { margin-top: 14px; font-size: var(--fs-14); }
.bt-feature__note {
  margin-top: auto; padding-top: 18px;
  font-family: var(--font-mono); font-size: var(--fs-12); color: var(--fg-3);
}

/* DATA MODEL --------------------------------------------- */
.bt-datamodel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 64px;
  align-items: start;
}
.bt-datamodel__copy { max-width: 520px; }
.bt-datamodel__lede {
  font-size: var(--fs-18); color: var(--fg-1); line-height: 1.55;
  margin: 0 0 32px;
  font-weight: var(--fw-medium);
}
.bt-datamodel__list {
  margin: 0 0 32px;
  padding: 0;
  display: grid;
  gap: 0;
}
.bt-datamodel__row {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 24px;
  padding: 18px 0;
  border-top: 1px solid var(--border-1);
}
.bt-datamodel__row:last-child { border-bottom: 1px solid var(--border-1); }
.bt-datamodel__row dt {
  font-size: var(--fs-14);
  font-weight: var(--fw-semibold);
  color: var(--fg-1);
  letter-spacing: -0.005em;
}
.bt-datamodel__row dd {
  margin: 0;
  font-size: var(--fs-14);
  color: var(--fg-2);
  line-height: 1.55;
}
.bt-datamodel__cta { align-self: start; }

/* Diagram on the right --------------------------------- */
.bt-datamodel__diagram {
  border: 1px solid var(--border-1);
  border-radius: var(--r-4);
  background: var(--surface-1);
  padding: 24px 28px 32px;
  position: relative;
}
.bt-datamodel__diagram-head {
  display: flex; justify-content: space-between; align-items: baseline;
  padding-bottom: 16px; margin-bottom: 8px;
  border-bottom: 1px solid var(--border-1);
}
.bt-datamodel__diagram-label {
  font-size: var(--fs-12); font-weight: var(--fw-semibold);
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--fg-3);
}
.bt-datamodel__diagram-meta {
  font-family: var(--font-mono); font-size: var(--fs-12); color: var(--fg-3);
}
.bt-pipeline {
  display: flex; flex-direction: column;
  padding-top: 8px;
}
.bt-pipeline__stage {
  background: var(--surface-0);
  border: 1px solid var(--border-1);
  border-radius: var(--r-3);
  padding: 12px 16px 14px;
  display: flex; flex-direction: column; gap: 4px;
}
.bt-pipeline__stage--output {
  background: var(--bt-navy);
  border-color: var(--bt-navy);
}
.bt-pipeline__head {
  display: flex; align-items: baseline; gap: 10px;
}
.bt-pipeline__num {
  font-family: var(--font-mono); font-size: var(--fs-12);
  color: var(--fg-3);
  min-width: 16px;
}
.bt-pipeline__stage--output .bt-pipeline__num { color: rgba(255,255,255,0.55); }
.bt-pipeline__label {
  font-size: var(--fs-14); font-weight: var(--fw-semibold);
  color: var(--fg-1);
  letter-spacing: -0.005em;
}
.bt-pipeline__stage--output .bt-pipeline__label { color: #fff; }
.bt-pipeline__value {
  font-size: var(--fs-13); color: var(--fg-3);
  line-height: 1.45;
  padding-left: 26px;
  font-family: var(--font-mono);
  letter-spacing: -0.005em;
}
.bt-pipeline__stage--output .bt-pipeline__value { color: rgba(255,255,255,0.78); }
.bt-pipeline__value--strong { color: #fff; font-family: var(--font-sans); font-weight: var(--fw-medium); font-size: var(--fs-14); }
.bt-pipeline__connector {
  width: 1px; height: 18px;
  background: var(--border-2);
  margin: 0 0 0 32px;
}

/* FAQ ----------------------------------------------------- */
.bt-faq {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  align-items: start;
  width: 90%;
  margin: 0 auto;
}
.bt-faq__item {
  border: 1px solid var(--border-1);
  border-radius: var(--r-3);
  background: var(--surface-0);
  margin-bottom: 10px;
  transition: border-color var(--dur-micro) var(--ease-standard);
}
.bt-faq__item:hover { border-color: var(--border-2); }
.bt-faq__item.is-open { border-color: var(--bt-navy); background: var(--surface-0); }
.bt-faq__q {
  width: 100%; background: none; border: 0; padding: 16px 18px;
  display: flex; justify-content: space-between; align-items: flex-start; gap: 12px;
  cursor: pointer; text-align: left;
  font-size: var(--fs-14); font-weight: var(--fw-semibold); color: var(--fg-1);
  font-family: inherit;
  line-height: 1.35;
}
.bt-faq__toggle {
  width: 22px; height: 22px; border-radius: 50%;
  border: 1px solid var(--border-2);
  display: flex; align-items: center; justify-content: center;
  color: var(--fg-2);
  flex-shrink: 0;
  transition: transform var(--dur-micro) var(--ease-standard), background var(--dur-micro) var(--ease-standard), color var(--dur-micro) var(--ease-standard);
}
.bt-faq__item.is-open .bt-faq__toggle {
  background: var(--bt-navy); border-color: var(--bt-navy); color: #fff; transform: rotate(45deg);
}
.bt-faq__a {
  padding: 0 18px 18px 18px;
  font-size: var(--fs-15); color: var(--fg-2); line-height: 1.55;
}
.bt-faq__a p { margin: 0 0 10px; }
.bt-faq__a p:last-child { margin-bottom: 0; }
.bt-faq__a ul { margin: 0 0 10px; padding: 0 0 0 20px; list-style: disc; }
.bt-faq__a ul:last-child { margin-bottom: 0; }
.bt-faq__a li { margin: 4px 0; }
.bt-faq__a code { font-family: var(--font-mono); font-size: var(--fs-15); background: var(--surface-2); padding: 1px 6px; border-radius: var(--r-2); }

/* TEAM ---------------------------------------------------- */
.bt-team { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.bt-member {
  background: var(--surface-0);
  border: 1px solid var(--border-1);
  border-radius: var(--r-4);
  padding: 28px;
  display: flex; flex-direction: column;
  transition: border-color var(--dur-micro) var(--ease-standard);
}
.bt-member:hover { border-color: var(--border-2); }
.bt-member__head {
  display: flex; align-items: center; gap: 16px;
  margin-bottom: 18px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--border-1);
}
.bt-member__portrait {
  width: 72px; height: 72px; border-radius: 50%;
  background: radial-gradient(circle at 50% 35%, var(--surface-2), var(--surface-3) 70%);
  flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  position: relative;
}
.bt-member__portrait-glyph {
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--bt-navy); opacity: 0.08;
}
.bt-member__portrait-img {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  border-radius: 50%;
  display: block;
}
.bt-member__head-text { min-width: 0; }
.bt-member__name { font-size: var(--fs-18); font-weight: var(--fw-semibold); color: var(--fg-1); margin: 0 0 4px; line-height: 1.2; }
.bt-member__role {
  font-family: var(--font-mono); font-size: var(--fs-12);
  color: var(--fg-3); letter-spacing: 0.06em; text-transform: uppercase;
}
.bt-member__bio { font-size: var(--fs-14); color: var(--fg-2); line-height: 1.55; margin: 0 0 18px; white-space: pre-line; }
.bt-member__links { display: flex; gap: 14px; font-size: var(--fs-13); color: var(--fg-3); margin-top: auto; }
.bt-member__links a { color: var(--fg-3); display: inline-flex; align-items: center; gap: 6px; }
.bt-member__links a:hover { color: var(--fg-1); }

/* CONTACT (navy band) ------------------------------------ */
.bt-contact {
  background: var(--bt-navy);
  color: #fff;
  padding: 120px 0;
  position: relative;
  overflow: hidden;
}
.bt-contact__arrow {
  position: absolute;
  right: -10%;
  top: 50%;
  width: 78%;
  max-width: 1180px;
  height: auto;
  opacity: 0.035;
  transform: translateY(-50%);
  pointer-events: none;
  user-select: none;
}
.bt-contact__grid {
  display: grid; grid-template-columns: 1.1fr 1fr; gap: 64px; align-items: start;
  position: relative;
}
.bt-contact__eyebrow { color: var(--fg-on-dark-3); }
.bt-contact h2 {
  font-family: var(--font-sans);
  font-weight: var(--fw-semibold);
  font-size: clamp(20px, 2.5vw, 32px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 14px 0 24px;
  color: #fff;
}
.bt-contact__lede {
  font-size: var(--fs-18); color: var(--fg-on-dark-2); line-height: 1.55;
  margin: 0 0 32px; max-width: 460px;
}
.bt-contact__ctas { display: flex; gap: 12px; flex-wrap: wrap; }
.bt-contact__details {
  align-self: stretch;
}
.bt-contact__panel {
  padding: 36px 36px;
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--r-4);
  background: var(--surface-dark-1);
  height: 100%;
  display: flex; flex-direction: column;
}
.bt-contact__row {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 24px;
  padding: 22px 0;
  border-bottom: 1px solid rgba(255,255,255,0.12);
  align-items: baseline;
}
.bt-contact__row:first-child { padding-top: 0; }
.bt-contact__row:last-child { padding-bottom: 0; border-bottom: 0; }
.bt-contact__row-label {
  font-size: var(--fs-12); font-weight: var(--fw-semibold);
  text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--fg-on-dark-3);
}
.bt-contact__row-value {
  font-size: var(--fs-16); color: #fff; line-height: 1.5;
}
.bt-contact__row-value a { border-bottom: 1px solid transparent; transition: border-color var(--dur-micro) var(--ease-standard); }
.bt-contact__row-value a:hover { border-bottom-color: rgba(255,255,255,0.6); }

/* FOOTER -------------------------------------------------- */
.bt-footer {
  background: var(--surface-1);
  padding: 64px 0 32px;
  border-top: 1px solid var(--border-1);
}
.bt-footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  align-items: start;
}
.bt-footer__logo img { height: 22px; margin-bottom: 14px; }
.bt-footer__tagline { font-size: var(--fs-14); color: var(--fg-2); max-width: 280px; margin: 0; line-height: 1.55; }
.bt-footer__col-head {
  font-size: var(--fs-12); font-weight: var(--fw-semibold);
  letter-spacing: 0.08em; text-transform: uppercase; color: var(--fg-3);
  margin-bottom: 14px;
}
.bt-footer__list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 8px; }
.bt-footer__list a { font-size: var(--fs-14); color: var(--fg-2); transition: color var(--dur-micro) var(--ease-standard); }
.bt-footer__list a:hover { color: var(--fg-1); }
.bt-footer__copy {
  margin-top: 56px; padding-top: 24px;
  border-top: 1px solid var(--border-1);
  display: flex; justify-content: space-between; align-items: center; gap: 24px;
  font-size: var(--fs-13); color: var(--fg-3);
}
.bt-footer__copy a { color: var(--fg-3); }
.bt-footer__copy a:hover { color: var(--fg-1); }

/* responsive ---------------------------------------------- */
@media (max-width: 980px) {
  .bt-hero__grid { grid-template-columns: 1fr; gap: 48px; }
  .bt-mock-deco { display: none; }
  .bt-timeline { grid-template-columns: 1fr 1fr; gap: 40px 16px; }
  .bt-features { grid-template-columns: 1fr 1fr; }
  .bt-feature:nth-child(3n) { border-right: 1px solid var(--border-1); }
  .bt-feature:nth-child(2n) { border-right: 0; }
  .bt-datamodel { grid-template-columns: 1fr; gap: 40px; }
  .bt-datamodel__copy { max-width: none; }
  .bt-datamodel__row { grid-template-columns: 1fr; gap: 4px; }
  .bt-team { grid-template-columns: 1fr; }
  .bt-contact__grid { grid-template-columns: 1fr; }
  .bt-footer__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .wrap, .bt-header__inner { padding: 0 20px; }
  .bt-section { padding: 72px 0; }
  .bt-hero { padding: 56px 0 72px; }
  .bt-section__head { flex-direction: column; align-items: flex-start; gap: 16px; margin-bottom: 40px; }
  .bt-features { grid-template-columns: 1fr; }
  .bt-feature { border-right: 0 !important; }
  .bt-faq { grid-template-columns: 1fr; }
  .bt-header__nav { display: none; }
}