/* ============================================================
   Agentic Express — design system
   Editorial precision: warm paper, charcoal ink, copper & sage.
   Type: Fraunces (display serif) + Inter (UI/body), self-hosted.
   ============================================================ */

@font-face {
  font-family: "Fraunces";
  font-style: normal;
  font-weight: 300 600;
  font-display: swap;
  src: url("fonts/fraunces-roman-latin.woff2") format("woff2");
}
@font-face {
  font-family: "Fraunces";
  font-style: italic;
  font-weight: 300 600;
  font-display: swap;
  src: url("fonts/fraunces-italic-latin.woff2") format("woff2");
}
@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 400 650;
  font-display: swap;
  src: url("fonts/inter-roman-latin.woff2") format("woff2");
}

:root {
  color-scheme: light;

  /* palette */
  --charcoal: #36454f;          /* brand, from the logo */
  --ink: #2b3840;               /* deep headings */
  --body: #4f5b63;              /* body text */
  --muted: #75808a;             /* captions, fine print */
  --paper: #f6f4ee;             /* page background */
  --paper-deep: #eeebe1;        /* tinted sections */
  --card: #fcfbf7;              /* raised surfaces */
  --hairline: rgba(54, 69, 79, 0.14);
  --hairline-soft: rgba(54, 69, 79, 0.09);
  --copper: #b05f3e;            /* primary accent */
  --copper-deep: #93482a;
  --copper-soft: rgba(176, 95, 62, 0.1);
  --amber: #d4a373;             /* warm fills */
  --sage: #84a98c;              /* confirmation, trust */
  --sage-deep: #5d8266;
  --on-dark: #f6f4ee;
  --on-dark-soft: rgba(246, 244, 238, 0.68);
  --on-dark-faint: rgba(246, 244, 238, 0.4);

  /* depth */
  --shadow-sm: 0 1px 2px rgba(43, 56, 64, 0.05), 0 6px 18px rgba(43, 56, 64, 0.06);
  --shadow-md: 0 1px 2px rgba(43, 56, 64, 0.06), 0 12px 32px rgba(43, 56, 64, 0.1),
               0 36px 72px -28px rgba(43, 56, 64, 0.2);

  /* shape & rhythm */
  --radius-sm: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.375rem;
  --space-section: clamp(5rem, 10vw, 8.5rem);
  --max-width: 73rem;

  /* type */
  --font-display: "Fraunces", "Iowan Old Style", Georgia, serif;
  --font-sans: "Inter", "Avenir Next", "Segoe UI", Helvetica, Arial, sans-serif;
  --ease-out: cubic-bezier(0.22, 0.65, 0.3, 1);
}

/* ---------- base ---------- */

* { box-sizing: border-box; }
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  font: 400 1rem/1.65 var(--font-sans);
  color: var(--body);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { display: block; max-width: 100%; }
h1, h2, h3 {
  font-family: var(--font-display);
  font-optical-sizing: auto;
  color: var(--ink);
  font-weight: 500;
  line-height: 1.08;
  letter-spacing: -0.01em;
  margin: 0;
  text-wrap: balance;
}
p { margin: 0; }
a { color: inherit; text-underline-offset: 0.2em; }
::selection { background: var(--charcoal); color: var(--paper); }
:focus-visible {
  outline: 2px solid var(--copper);
  outline-offset: 3px;
  border-radius: 2px;
}

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 60;
  padding: 0.7rem 1rem;
  border-radius: var(--radius-sm);
  background: var(--ink);
  color: var(--paper);
  text-decoration: none;
  transition: top 200ms var(--ease-out);
}
.skip-link:focus { top: 1rem; }

.container {
  width: min(100% - 2.5rem, var(--max-width));
  margin-inline: auto;
}

.section {
  padding-block: var(--space-section);
  scroll-margin-top: 5rem;
}
.section-tinted {
  background: var(--paper-deep);
  border-block: 1px solid var(--hairline-soft);
}

/* ---------- chapter headers (01 — Services) ---------- */

.chapter {
  display: flex;
  align-items: baseline;
  gap: 0.9rem;
  margin-bottom: clamp(2rem, 4vw, 3rem);
}
.chapter-no {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.05rem;
  color: var(--copper);
}
.chapter-label {
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink);
}
.chapter::after {
  content: "";
  flex: 1;
  align-self: center;
  height: 1px;
  background: var(--hairline);
}
.chapter-inverse .chapter-no { color: var(--amber); }
.chapter-inverse .chapter-label { color: var(--on-dark); }
.chapter-inverse::after { background: rgba(246, 244, 238, 0.18); }

/* ---------- section heads ---------- */

.section-head {
  display: grid;
  gap: 1.25rem;
  align-items: end;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}
.section-head h2,
.faq-head h2,
.contact-copy h2 {
  font-size: clamp(1.9rem, 3.6vw, 2.7rem);
  max-width: 22ch;
}
.section-intro {
  max-width: 38rem;
  font-size: 1.0625rem;
  color: var(--body);
}

/* ---------- header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(246, 244, 238, 0.82);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 250ms ease, box-shadow 250ms ease;
}
.site-header.is-scrolled {
  border-bottom-color: var(--hairline-soft);
  box-shadow: 0 8px 24px -16px rgba(43, 56, 64, 0.18);
}
.header-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 1rem;
  min-height: 4.5rem;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}
.brand-logo { width: 2.5rem; height: 2.5rem; }
.brand-name {
  font-family: var(--font-display);
  font-size: 1.22rem;
  font-weight: 560;
  color: var(--ink);
  letter-spacing: -0.005em;
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.55rem 0.9rem;
  border: 1px solid var(--hairline);
  border-radius: 999px;
  background: var(--card);
  color: var(--ink);
  font: 500 0.85rem/1 var(--font-sans);
  cursor: pointer;
}
.nav-toggle-box {
  display: grid;
  gap: 0.3rem;
  width: 1rem;
}
.nav-toggle-box span {
  height: 1.5px;
  border-radius: 999px;
  background: currentColor;
  transition: transform 250ms var(--ease-out);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-box span:first-child { transform: translateY(0.225rem) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-box span:last-child { transform: translateY(-0.225rem) rotate(-45deg); }

.site-nav { display: none; grid-column: 1 / -1; padding-bottom: 1rem; }
.site-nav.is-open { display: block; }
.site-nav ul {
  list-style: none;
  margin: 0;
  padding: 0.6rem;
  display: grid;
  gap: 0.2rem;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
  background: var(--card);
  box-shadow: var(--shadow-sm);
}
.site-nav a {
  display: block;
  padding: 0.6rem 0.8rem;
  border-radius: var(--radius-sm);
  color: var(--ink);
  font-size: 0.95rem;
  font-weight: 500;
  text-decoration: none;
}
.site-nav a:hover { background: var(--copper-soft); }
.site-nav .nav-cta {
  background: var(--charcoal);
  color: var(--paper);
  text-align: center;
}
.site-nav .nav-cta:hover { background: var(--ink); }

/* ---------- hero ---------- */

.hero {
  position: relative;
  overflow: clip;
  padding: clamp(3.5rem, 7vw, 6.5rem) 0 clamp(3.5rem, 6vw, 5.5rem);
}
.hero-backdrop {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(46rem 32rem at 88% -12%, rgba(212, 163, 115, 0.18), transparent 62%),
    radial-gradient(38rem 28rem at -12% 112%, rgba(132, 169, 140, 0.14), transparent 62%);
}
.hero-backdrop::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(54, 69, 79, 0.13) 1px, transparent 1.4px);
  background-size: 26px 26px;
  -webkit-mask-image: radial-gradient(60rem 34rem at 78% 8%, black, transparent 68%);
  mask-image: radial-gradient(60rem 34rem at 78% 8%, black, transparent 68%);
}
.hero-grid {
  position: relative;
  display: grid;
  gap: clamp(2.5rem, 5vw, 4rem);
  align-items: center;
}
.hero .eyebrow {
  margin: 0 0 1.4rem;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--copper);
}
.hero h1 {
  font-size: clamp(2.55rem, 6vw, 4.15rem);
  font-weight: 480;
  line-height: 1.03;
  max-width: 20ch;
  margin-bottom: 1.5rem;
}
.hero h1 em {
  font-style: italic;
  font-weight: 460;
  color: var(--copper-deep);
}
.lead {
  max-width: 36rem;
  margin-bottom: 2.2rem;
  font-size: 1.1rem;
  line-height: 1.68;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-bottom: 1.6rem;
}
.hero-meta {
  font-size: 0.86rem;
  color: var(--muted);
}

/* ---------- buttons ---------- */

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 3rem;
  padding: 0.8rem 1.35rem;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  font: 550 0.95rem/1 var(--font-sans);
  text-decoration: none;
  cursor: pointer;
  transition: transform 200ms var(--ease-out), background-color 200ms ease,
              border-color 200ms ease, box-shadow 200ms ease;
}
.button:hover { transform: translateY(-1px); }
.button:active { transform: translateY(0); }
.button-arrow {
  display: inline-block;
  transition: transform 250ms var(--ease-out);
}
.button:hover .button-arrow { transform: translateX(0.25rem); }
.button-primary {
  background: var(--charcoal);
  border-color: var(--charcoal);
  color: var(--paper);
  box-shadow: 0 12px 28px -10px rgba(43, 56, 64, 0.4);
}
.button-primary:hover {
  background: var(--ink);
  border-color: var(--ink);
  box-shadow: 0 16px 32px -12px rgba(43, 56, 64, 0.45);
}
.button-ghost {
  border-color: var(--hairline);
  background: rgba(252, 251, 247, 0.6);
  color: var(--ink);
}
.button-ghost:hover {
  border-color: var(--charcoal);
  background: var(--card);
}
.button-wide { width: 100%; }

/* ---------- agent run (hero figure) ---------- */

.agent-run {
  margin: 0;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-xl);
  background: var(--card);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}
.run-chrome {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.85rem 1.15rem;
  border-bottom: 1px solid var(--hairline-soft);
  background: rgba(54, 69, 79, 0.03);
}
.run-chrome img { width: 1.375rem; height: 1.375rem; border-radius: 0.3rem; }
.run-title {
  flex: 1;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ink);
}
.run-status {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.28rem 0.7rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  background: var(--copper-soft);
  color: var(--copper-deep);
  transition: background-color 300ms ease, color 300ms ease;
}
.run-status::before {
  content: "";
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: currentColor;
}
.agent-run.is-running .run-status::before { animation: status-pulse 1.2s ease-in-out infinite; }
.agent-run.is-done .run-status {
  background: rgba(132, 169, 140, 0.18);
  color: var(--sage-deep);
}
@keyframes status-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.75); }
}

.run-intake {
  display: flex;
  gap: 0.85rem;
  align-items: baseline;
  padding: 1.05rem 1.15rem 0.95rem;
  border-bottom: 1px dashed var(--hairline);
}
.run-time {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}
.run-intake p {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.02rem;
  line-height: 1.45;
  color: var(--ink);
}
.run-intake p span {
  font-family: var(--font-sans);
  font-style: normal;
  font-size: 0.78rem;
  color: var(--muted);
}

.run-steps {
  list-style: none;
  margin: 0;
  padding: 1.05rem 1.15rem;
  display: grid;
  gap: 0.95rem;
}
.run-steps li {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.8rem;
  align-items: start;
  transition: opacity 450ms ease, transform 450ms var(--ease-out);
}
.run-steps li.run-gate { grid-template-columns: auto 1fr auto; }
.run-steps li:not(:last-child)::before {
  content: "";
  position: absolute;
  left: calc(0.5625rem - 0.5px);
  top: 1.3rem;
  bottom: -1.1rem;
  width: 1px;
  background: var(--hairline);
}
.run-dot {
  position: relative;
  z-index: 1;
  width: 1.125rem;
  height: 1.125rem;
  margin-top: 0.12rem;
  border-radius: 50%;
  border: 1.5px solid var(--hairline);
  background: var(--card);
  transition: border-color 350ms ease, background-color 350ms ease, box-shadow 350ms ease;
}
.run-steps strong {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.3;
}
.run-steps p {
  font-size: 0.82rem;
  color: var(--muted);
  line-height: 1.45;
}
.run-approve {
  align-self: center;
  padding: 0.32rem 0.75rem;
  border: 1px solid rgba(176, 95, 62, 0.45);
  border-radius: 999px;
  font-size: 0.74rem;
  font-weight: 600;
  color: var(--copper-deep);
  background: var(--copper-soft);
  opacity: 0;
  transform: scale(0.92);
  transition: opacity 350ms ease, transform 350ms var(--ease-out),
              background-color 350ms ease, color 350ms ease, border-color 350ms ease;
}

/* step states (driven by script.js) */
.js .agent-run.is-animated [data-run-step] { opacity: 0.32; }
.js .agent-run.is-animated [data-run-step].is-active,
.js .agent-run.is-animated [data-run-step].is-done { opacity: 1; }
.agent-run [data-run-step].is-active .run-dot {
  border-color: var(--copper);
  background: var(--copper);
  box-shadow: 0 0 0 4px rgba(176, 95, 62, 0.18);
}
.agent-run [data-run-step].is-done .run-dot {
  border-color: var(--sage-deep);
  background: var(--sage);
  box-shadow: none;
}
.agent-run [data-run-step].is-active.run-gate .run-approve,
.agent-run [data-run-step].is-done.run-gate .run-approve { opacity: 1; transform: scale(1); }
.agent-run [data-run-step].is-done.run-gate .run-approve {
  border-color: rgba(93, 130, 102, 0.5);
  background: rgba(132, 169, 140, 0.16);
  color: var(--sage-deep);
}

.agent-run figcaption {
  padding: 0.8rem 1.15rem;
  border-top: 1px solid var(--hairline-soft);
  font-size: 0.78rem;
  color: var(--muted);
}

/* ---------- ticker ---------- */

.ticker {
  overflow: hidden;
  border-block: 1px solid var(--hairline-soft);
  background: var(--card);
  padding-block: 0.95rem;
}
.ticker-track {
  display: flex;
  width: max-content;
  animation: ticker-scroll 52s linear infinite;
}
.ticker:hover .ticker-track { animation-play-state: paused; }
.ticker ul {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
}
.ticker li {
  font-size: 0.8rem;
  font-weight: 550;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: rgba(54, 69, 79, 0.62);
  white-space: nowrap;
}
.ticker li::after {
  content: "·";
  margin-inline: 1.6rem;
  color: var(--amber);
}
@keyframes ticker-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ---------- 01 services ---------- */

.service-grid {
  display: grid;
  gap: 1rem;
  margin-bottom: 1rem;
}
.service-card {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  padding: 1.6rem 1.5rem 1.4rem;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
  background: var(--card);
  transition: transform 250ms var(--ease-out), border-color 250ms ease, box-shadow 250ms ease;
}
.service-card:hover {
  transform: translateY(-4px);
  border-color: rgba(176, 95, 62, 0.35);
  box-shadow: var(--shadow-sm);
}
.service-icon {
  display: grid;
  place-items: center;
  width: 2.75rem;
  height: 2.75rem;
  margin-bottom: 0.4rem;
  border-radius: 0.8rem;
  background: rgba(54, 69, 79, 0.07);
  color: var(--charcoal);
  transition: background-color 250ms ease, color 250ms ease;
}
.service-icon svg { width: 1.4rem; height: 1.4rem; }
.service-card:hover .service-icon {
  background: var(--charcoal);
  color: var(--paper);
}
.service-card h3 {
  font-size: 1.28rem;
  line-height: 1.15;
}
.service-card > p { font-size: 0.92rem; line-height: 1.6; }
.service-takeaway {
  margin-top: auto;
  padding-top: 0.9rem;
  border-top: 1px solid var(--hairline-soft);
  font-size: 0.84rem;
  color: var(--ink);
  font-weight: 500;
  line-height: 1.45;
}
.service-takeaway span {
  display: block;
  margin-bottom: 0.15rem;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--copper);
}

.training-band {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.2rem;
  align-items: start;
  padding: 1.6rem 1.5rem;
  border: 1px solid rgba(212, 163, 115, 0.45);
  border-radius: var(--radius-lg);
  background: linear-gradient(110deg, rgba(212, 163, 115, 0.16), rgba(212, 163, 115, 0.05) 55%), var(--card);
}
.training-band .service-icon {
  margin: 0;
  background: rgba(176, 95, 62, 0.12);
  color: var(--copper-deep);
}
.training-band h3 { font-size: 1.28rem; margin-bottom: 0.45rem; }
.training-band p { max-width: 56rem; font-size: 0.95rem; }

/* ---------- 02 method ---------- */

.method-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2.2rem;
  counter-reset: method;
}
.method-step {
  position: relative;
  padding-top: 1.4rem;
  border-top: 1px solid var(--hairline);
}
.method-no {
  position: absolute;
  top: -0.95rem;
  left: 0;
  padding-right: 0.8rem;
  background: var(--paper-deep);
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.6rem;
  color: var(--copper);
  line-height: 1;
}
.method-step h3 {
  font-size: 1.42rem;
  margin: 0.4rem 0 0.7rem;
}
.method-step p { font-size: 0.95rem; }

/* ---------- 03 use cases ---------- */

.case-grid {
  display: grid;
  gap: 1rem;
}
.case-card {
  padding: 1.7rem 1.6rem;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
  background: var(--card);
  transition: transform 250ms var(--ease-out), border-color 250ms ease, box-shadow 250ms ease;
}
.case-card:hover {
  transform: translateY(-4px);
  border-color: rgba(176, 95, 62, 0.35);
  box-shadow: var(--shadow-sm);
}
.case-tag {
  display: inline-block;
  margin-bottom: 1.1rem;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--copper);
}
.case-card h3 {
  font-size: 1.38rem;
  margin-bottom: 0.65rem;
  max-width: 24ch;
}
.case-card p { font-size: 0.95rem; }

/* ---------- 04 safeguards ---------- */

.section-dark {
  position: relative;
  background: linear-gradient(180deg, #313e47, var(--charcoal));
  color: var(--on-dark-soft);
  overflow: clip;
}
.section-dark::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(246, 244, 238, 0.1) 1px, transparent 1.4px);
  background-size: 26px 26px;
  -webkit-mask-image: radial-gradient(50rem 30rem at 12% 0%, black, transparent 70%);
  mask-image: radial-gradient(50rem 30rem at 12% 0%, black, transparent 70%);
  pointer-events: none;
}
.section-dark .container { position: relative; }
.manifesto {
  margin: 0 0 clamp(2.5rem, 5vw, 4rem);
}
.manifesto p {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 4vw, 2.7rem);
  font-weight: 420;
  line-height: 1.18;
  color: var(--on-dark);
  max-width: 24ch;
  text-wrap: balance;
}
.manifesto em {
  font-style: italic;
  color: var(--amber);
}
.safeguard-grid {
  display: grid;
  gap: 1.8rem 1.4rem;
}
.safeguard {
  padding-top: 1.2rem;
  border-top: 1px solid rgba(246, 244, 238, 0.2);
}
.safeguard h3 {
  font-family: var(--font-sans);
  font-size: 0.98rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--on-dark);
  margin-bottom: 0.5rem;
}
.safeguard p {
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--on-dark-soft);
}

/* ---------- 05 FAQ ---------- */

.faq-layout {
  display: grid;
  gap: 2.5rem;
  align-items: start;
}
.faq-head h2 { margin-bottom: 1rem; }
.faq-list {
  border-top: 1px solid var(--hairline);
}
.faq-item {
  border-bottom: 1px solid var(--hairline);
}
.faq-item summary {
  position: relative;
  list-style: none;
  padding: 1.15rem 2.6rem 1.15rem 0.1rem;
  font-size: 1.02rem;
  font-weight: 550;
  color: var(--ink);
  cursor: pointer;
  transition: color 200ms ease;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { color: var(--copper-deep); }
.faq-item summary::after {
  content: "";
  position: absolute;
  right: 0.4rem;
  top: 50%;
  width: 0.85rem;
  height: 0.85rem;
  background:
    linear-gradient(currentColor, currentColor) center / 100% 1.5px no-repeat,
    linear-gradient(currentColor, currentColor) center / 1.5px 100% no-repeat;
  color: var(--copper);
  transform: translateY(-50%);
  transition: transform 300ms var(--ease-out);
}
.faq-item[open] summary::after { transform: translateY(-50%) rotate(135deg); }
.faq-answer {
  padding: 0 2.6rem 1.3rem 0.1rem;
  max-width: 56ch;
}
.faq-answer p { font-size: 0.95rem; }

/* animate <details> opening where supported */
@supports (interpolate-size: allow-keywords) {
  :root { interpolate-size: allow-keywords; }
  .faq-item::details-content {
    block-size: 0;
    overflow: clip;
    transition: block-size 350ms var(--ease-out), content-visibility 350ms allow-discrete;
  }
  .faq-item[open]::details-content { block-size: auto; }
}

/* ---------- 06 contact ---------- */

.contact-section { padding-top: 0; }
.contact-panel {
  display: grid;
  gap: 2.5rem;
  padding: clamp(1.8rem, 4vw, 3.2rem);
  border-radius: var(--radius-xl);
  background:
    radial-gradient(40rem 26rem at 110% -20%, rgba(212, 163, 115, 0.16), transparent 60%),
    linear-gradient(160deg, #313e47, var(--charcoal));
  color: var(--on-dark-soft);
  box-shadow: var(--shadow-md);
}
.contact-copy h2 {
  color: var(--on-dark);
  margin-bottom: 1.1rem;
}
.contact-copy > p { max-width: 34rem; font-size: 0.98rem; }
.contact-details {
  display: grid;
  gap: 0.9rem;
  margin: 2rem 0 0;
}
.contact-details dt {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--on-dark-faint);
}
.contact-details dd {
  margin: 0.2rem 0 0;
  font-size: 1.02rem;
  color: var(--on-dark);
}
.contact-details a { text-decoration-color: rgba(212, 163, 115, 0.6); }
.contact-details a:hover { color: var(--amber); }

.contact-form {
  padding: 1.7rem 1.6rem;
  border-radius: var(--radius-lg);
  background: var(--paper);
  color: var(--body);
  box-shadow: 0 24px 48px -24px rgba(20, 28, 33, 0.5);
}
.field-pair { display: grid; gap: 0 1rem; }
.field {
  display: grid;
  gap: 0.4rem;
  margin-bottom: 1.05rem;
}
.field label {
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--ink);
}
.field input,
.field textarea {
  width: 100%;
  padding: 0.78rem 0.9rem;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-sm);
  background: var(--card);
  color: var(--ink);
  font: inherit;
  transition: border-color 200ms ease, box-shadow 200ms ease;
}
.field input:focus,
.field textarea:focus {
  outline: 0;
  border-color: var(--charcoal);
  box-shadow: 0 0 0 3px rgba(54, 69, 79, 0.14);
}
.field textarea { resize: vertical; min-height: 7.5rem; }
.form-note {
  margin-top: 0.9rem;
  font-size: 0.82rem;
  color: var(--muted);
}

/* ---------- footer ---------- */

.site-footer {
  border-top: 1px solid var(--hairline-soft);
  padding: 2.6rem 0 2.8rem;
}
.footer-inner {
  display: grid;
  gap: 1.6rem;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}
.footer-brand img { width: 2.125rem; height: 2.125rem; }
.footer-brand p {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 560;
  color: var(--ink);
  line-height: 1.25;
}
.footer-brand span {
  display: block;
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--muted);
}
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.4rem;
}
.footer-nav a {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--body);
  text-decoration: none;
}
.footer-nav a:hover { color: var(--copper-deep); }
.footer-meta {
  font-size: 0.84rem;
  color: var(--muted);
}
.footer-meta a { color: inherit; }

/* ---------- reveal animation ---------- */

.js [data-rise] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 700ms var(--ease-out), transform 700ms var(--ease-out);
  transition-delay: var(--rise-delay, 0ms);
}
.js [data-rise].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- responsive ---------- */

@media (min-width: 42rem) {
  .field-pair { grid-template-columns: 1fr 1fr; }
  .service-grid { grid-template-columns: 1fr 1fr; }
  .case-grid { grid-template-columns: 1fr 1fr; }
  .safeguard-grid { grid-template-columns: 1fr 1fr; }
  .footer-inner {
    grid-template-columns: 1fr auto;
    align-items: center;
  }
  .footer-meta { grid-column: 1 / -1; }
}

@media (min-width: 56rem) {
  .header-inner { grid-template-columns: auto 1fr; }
  .nav-toggle { display: none; }
  .site-nav {
    display: block !important;
    grid-column: auto;
    justify-self: end;
    padding-bottom: 0;
  }
  .site-nav ul {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0;
    border: 0;
    background: transparent;
    box-shadow: none;
  }
  .site-nav a {
    padding: 0.45rem 0.7rem;
    font-size: 0.9rem;
    color: var(--body);
    border-radius: var(--radius-sm);
    background: linear-gradient(var(--copper-deep), var(--copper-deep)) left 0.7rem bottom 0.38rem / 0 1.5px no-repeat;
    transition: color 200ms ease, background-size 250ms var(--ease-out);
  }
  .site-nav a:hover,
  .site-nav a[aria-current="true"] {
    color: var(--ink);
    background-color: transparent;
    background-size: calc(100% - 1.4rem) 1.5px;
  }
  .site-nav .nav-cta {
    margin-left: 0.6rem;
    padding: 0.55rem 1.15rem;
    border-radius: 999px;
    background: var(--charcoal);
    color: var(--paper);
  }
  .site-nav .nav-cta:hover {
    background: var(--ink);
    background-size: 0;
  }

  .section-head {
    grid-template-columns: 1fr minmax(20rem, 0.85fr);
    gap: 3rem;
  }
  .section-head .section-intro { justify-self: end; }
  .method-grid { grid-template-columns: repeat(3, 1fr); gap: 2.5rem 2rem; }
  .faq-layout { grid-template-columns: minmax(18rem, 0.8fr) 1.2fr; gap: 4rem; }
  .faq-head { position: sticky; top: 6.5rem; }
  .contact-panel { grid-template-columns: 1.05fr 0.95fr; gap: 3rem; align-items: center; }
  .safeguard-grid { grid-template-columns: repeat(4, 1fr); }
}

@media (min-width: 64rem) {
  .service-grid { grid-template-columns: repeat(4, 1fr); }
  .hero-grid { grid-template-columns: 1.04fr minmax(24rem, 0.96fr); }
}

@media (max-width: 41.99rem) {
  .hero-actions .button { flex: 1 1 100%; }
  .run-intake { flex-wrap: wrap; gap: 0.3rem 0.85rem; }
  .training-band { grid-template-columns: 1fr; }
}

/* ---------- reduced motion ---------- */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .js [data-rise] { opacity: 1; transform: none; }
  .ticker-track { animation: none; }
  .run-approve { opacity: 1; transform: none; }
}

/* Error / 404 page */
.error-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 4rem 0;
}
.error-brand {
  display: inline-flex;
  margin-bottom: 2.5rem;
}
.error-title {
  font-family: var(--font-display);
  font-size: clamp(2.55rem, 6vw, 4.15rem);
  font-weight: 480;
  line-height: 1.03;
  color: var(--ink);
  margin: 0.6rem 0 1rem;
}
.error-text {
  max-width: 32rem;
  font-size: 1.1rem;
  line-height: 1.68;
  color: var(--body);
  margin: 0 0 2.2rem;
}