/* ================= ResSKU — design tokens ================= */
:root {
  --navy-900: #0b2440;
  --navy-800: #0f2f52;
  --navy-700: #123a63;
  --navy-600: #1b4c7d;
  --teal-700: #176b62;
  --teal-600: #1f8a7d;
  --teal-400: #2ec39f;
  --teal-300: #2ee0b0;

  --bg: #f6f7f5;
  --surface: #ffffff;
  --surface-2: #eef1ee;
  --surface-3: #e6eae7;
  --border: #d8ded9;
  --border-strong: #c2ccc5;

  --text: #12212f;
  --text-muted: #566574;
  --text-faint: #8493a1;
  --text-inv: #eef4f2;
  --text-inv-muted: #9fb6c4;

  --danger: #a8362f;
  --danger-soft: #fbeceb;

  --text-xs: clamp(0.75rem, 0.72rem + 0.14vw, 0.8125rem);
  --text-sm: clamp(0.875rem, 0.84rem + 0.16vw, 0.9375rem);
  --text-base: clamp(1rem, 0.97rem + 0.16vw, 1.0625rem);
  --text-lg: clamp(1.125rem, 1.02rem + 0.5vw, 1.375rem);
  --text-xl: clamp(1.5rem, 1.25rem + 1.05vw, 2.125rem);
  --text-2xl: clamp(2rem, 1.45rem + 2.3vw, 3.25rem);

  --space-1: 0.25rem; --space-2: 0.5rem; --space-3: 0.75rem; --space-4: 1rem;
  --space-5: 1.25rem; --space-6: 1.5rem; --space-8: 2rem; --space-10: 2.5rem;
  --space-12: 3rem; --space-16: 4rem; --space-20: 5rem; --space-24: 6rem;

  --radius-sm: 8px; --radius: 14px; --radius-lg: 20px;
  --shadow-sm: 0 1px 2px rgba(11, 36, 64, .06), 0 4px 14px rgba(11, 36, 64, .05);
  --shadow: 0 2px 6px rgba(11, 36, 64, .07), 0 18px 44px rgba(11, 36, 64, .09);
  --grad: linear-gradient(112deg, var(--navy-700) 0%, var(--teal-600) 62%, var(--teal-300) 100%);
  --shell: 1200px;
  --nav-h: 74px;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'General Sans', 'Satoshi', system-ui, -apple-system, sans-serif;
  font-size: var(--text-base);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
h1, h2, h3, .num, .counter__value {
  font-family: 'Satoshi', 'General Sans', system-ui, sans-serif;
  letter-spacing: -0.02em;
  line-height: 1.12;
  margin: 0;
  text-wrap: balance;
}
p { margin: 0; }
img { max-width: 100%; display: block; }
a { color: inherit; }
ul, ol { margin: 0; padding: 0; list-style: none; }

.shell { width: 100%; max-width: var(--shell); margin-inline: auto; padding-inline: clamp(1.125rem, 4vw, 2.5rem); }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; left: var(--space-4); top: -3rem; z-index: 200;
  background: var(--navy-700); color: #fff; padding: .6rem 1rem;
  border-radius: var(--radius-sm); font-size: var(--text-sm); text-decoration: none;
  transition: top .18s ease;
}
.skip-link:focus { top: var(--space-3); }

:where(a, button, input, select, textarea, [tabindex]):focus-visible {
  outline: 2px solid var(--teal-600);
  outline-offset: 3px;
  border-radius: 6px;
}
.section--dark :where(a, button):focus-visible { outline-color: var(--teal-300); }

/* ================= reveal ================= */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s cubic-bezier(.22,.61,.36,1), transform .7s cubic-bezier(.22,.61,.36,1); }
.reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } }

/* ================= buttons ================= */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  font-family: 'Satoshi', sans-serif; font-size: var(--text-sm); font-weight: 700;
  letter-spacing: -0.01em; padding: .85rem 1.4rem; border-radius: 10px;
  border: 1px solid transparent; cursor: pointer; text-decoration: none;
  transition: transform .18s ease, box-shadow .18s ease, background-color .18s ease, color .18s ease, border-color .18s ease;
  white-space: nowrap;
}
.btn--sm { padding: .6rem 1.05rem; }
.btn--full { width: 100%; padding-block: 1rem; }
.btn--primary { background: var(--navy-700); color: #fff; box-shadow: var(--shadow-sm); position: relative; overflow: hidden; }
.btn--primary::after {
  content: ''; position: absolute; inset: 0; background: var(--grad); opacity: 0; transition: opacity .22s ease;
}
.btn--primary > * { position: relative; z-index: 1; }
.btn--primary:hover { transform: translateY(-1px); box-shadow: var(--shadow); }
.btn--primary:hover::after { opacity: 1; }
.btn--ghost { background: transparent; color: var(--navy-700); border-color: var(--border-strong); }
.btn--ghost:hover { border-color: var(--teal-600); color: var(--teal-700); background: rgba(46, 224, 176, .08); }
.section--dark .btn--ghost { color: var(--text-inv); border-color: rgba(238, 244, 242, .28); }
.section--dark .btn--ghost:hover { border-color: var(--teal-300); color: var(--teal-300); }

.eyebrow {
  font-family: 'Satoshi', sans-serif; font-size: var(--text-xs); font-weight: 700;
  text-transform: uppercase; letter-spacing: .16em; color: var(--teal-700);
  margin-bottom: var(--space-4);
}
.eyebrow--dark { color: var(--teal-300); }
.grad { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lede { color: var(--text-muted); font-size: var(--text-lg); max-width: 62ch; margin-top: var(--space-4); }
.section--dark .lede { color: var(--text-inv-muted); }

/* ================= logo ================= */
.logo-frame { display: block; overflow: hidden; border-radius: 6px; background: #f8f9f7; }
.logo-frame img { object-fit: cover; object-position: center; width: 100%; height: 100%; mix-blend-mode: multiply; }
.logo-frame--nav { width: 178px; height: 44px; }
.logo-frame--footer { width: 210px; height: 52px; background: #f8f9f7; padding: 2px 6px; }
.nav__brand { display: inline-flex; align-items: center; text-decoration: none; }

/* ================= nav ================= */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(246, 247, 245, .88);
  backdrop-filter: blur(12px) saturate(140%);
  border-bottom: 1px solid transparent;
  transition: border-color .25s ease, box-shadow .25s ease, background-color .25s ease;
}
.nav.is-stuck { border-bottom-color: var(--border); box-shadow: 0 6px 24px rgba(11, 36, 64, .06); background: rgba(250, 251, 249, .95); }
.nav__inner { display: flex; align-items: center; gap: var(--space-6); min-height: var(--nav-h); }
.nav__links { display: flex; align-items: center; gap: clamp(.75rem, 1.6vw, 1.6rem); margin-left: auto; }
.nav__links a {
  font-size: var(--text-sm); font-weight: 500; color: var(--text-muted);
  text-decoration: none; position: relative; padding-block: .35rem;
}
.nav__links a::after {
  content: ''; position: absolute; left: 0; right: 100%; bottom: 0; height: 2px;
  background: var(--grad); transition: right .28s cubic-bezier(.22,.61,.36,1);
}
.nav__links a:hover { color: var(--navy-700); }
.nav__links a:hover::after, .nav__links a.is-active::after { right: 0; }
.nav__links a.is-active { color: var(--navy-700); }
.nav__toggle {
  display: none; margin-left: auto; background: var(--surface); color: var(--navy-700);
  border: 1px solid var(--border); border-radius: 10px; padding: .5rem; cursor: pointer;
}
.nav__mobile { display: none; }
.nav__demo { display: none; margin-left: var(--space-4); }
@media (min-width: 1200px) { .nav__demo { display: inline-flex; } }
@media (max-width: 940px) {
  .nav__links, .nav__cta, .nav__demo { display: none; }
  .nav__toggle { display: inline-flex; }
  .nav__mobile[hidden] { display: none; }
  .nav__mobile {
    display: grid; gap: var(--space-1); padding: var(--space-4) clamp(1.125rem, 4vw, 2.5rem) var(--space-6);
    border-top: 1px solid var(--border); background: var(--surface);
  }
  .nav__mobile a:not(.btn) {
    padding: .7rem .25rem; text-decoration: none; color: var(--text);
    font-weight: 500; border-bottom: 1px solid var(--surface-2);
  }
  .nav__mobile .btn { margin-top: var(--space-3); }
}

/* ================= sections ================= */
section[id], .hero { scroll-margin-top: calc(var(--nav-h) + 16px); }
.section { padding-block: clamp(var(--space-16), 8vw, var(--space-24)); }
.section--offset { background: var(--surface-2); }
.section--case { background: var(--surface); border-block: 1px solid var(--border); }
.section--dark {
  background:
    radial-gradient(1100px 480px at 88% -10%, rgba(46, 224, 176, .16), transparent 60%),
    radial-gradient(760px 420px at 4% 100%, rgba(31, 138, 125, .18), transparent 62%),
    var(--navy-900);
  color: var(--text-inv);
}
.sec-head { max-width: 720px; margin-bottom: clamp(var(--space-10), 4.5vw, var(--space-16)); }
.sec-head h2, .roi__intro h2, .faq__intro h2, .demo__intro h2 { font-size: var(--text-xl); font-weight: 900; }

/* ================= hero ================= */
.hero { padding-block: clamp(var(--space-16), 8vw, var(--space-24)) clamp(var(--space-16), 7vw, var(--space-24)); position: relative; overflow: hidden; }
.hero::before {
  content: ''; position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(720px 420px at 78% 6%, rgba(46, 224, 176, .14), transparent 65%),
    radial-gradient(620px 380px at 6% 20%, rgba(18, 58, 99, .09), transparent 60%);
}
.hero__grid {
  position: relative; display: grid; gap: clamp(var(--space-10), 5vw, var(--space-20));
  grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr); align-items: center;
}
.hero__title { font-size: var(--text-2xl); font-weight: 900; max-width: 18ch; }
.hero__sub { margin-top: var(--space-6); color: var(--text-muted); font-size: var(--text-lg); max-width: 54ch; }
.hero__actions { margin-top: var(--space-8); display: flex; flex-wrap: wrap; gap: var(--space-3); }
.chips { margin-top: var(--space-10); display: flex; flex-wrap: wrap; gap: var(--space-2) var(--space-3); }
.chip {
  display: inline-flex; align-items: center; gap: .5rem; background: var(--surface);
  border: 1px solid var(--border); border-radius: 999px; padding: .5rem .95rem;
  font-size: var(--text-xs); font-weight: 600; color: var(--navy-700); box-shadow: var(--shadow-sm);
}
.chip__dot { width: 8px; height: 8px; border-radius: 50%; background: var(--grad); flex: none; }
@media (min-width: 1024px) {
  .chips { flex-wrap: nowrap; gap: var(--space-2); }
  .chip { padding: .5rem .8rem; gap: .4rem; white-space: nowrap; }
}

.hero__panel {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg);
  box-shadow: var(--shadow); padding: var(--space-6); position: relative;
}
.hero__panel::before {
  content: ''; position: absolute; inset-inline: var(--space-6); top: 0; height: 3px;
  background: var(--grad); border-radius: 0 0 3px 3px;
}
.panel__head { display: flex; align-items: baseline; justify-content: space-between; gap: var(--space-4); margin-bottom: var(--space-5); }
.panel__label { font-size: var(--text-xs); font-weight: 700; text-transform: uppercase; letter-spacing: .12em; color: var(--text-faint); }
.panel__timer { font-family: 'Satoshi', monospace; font-weight: 700; font-variant-numeric: tabular-nums; color: var(--teal-700); font-size: var(--text-sm); }
.panel__rows { display: grid; gap: var(--space-2); }
.prow {
  display: grid; grid-template-columns: minmax(0, 1fr) 18px minmax(0, 1fr) auto;
  align-items: center; gap: var(--space-2);
  background: var(--surface-2); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: .7rem .8rem; font-size: var(--text-xs);
}
.prow__legacy { color: var(--text-muted); text-decoration: line-through; text-decoration-color: var(--border-strong); overflow-wrap: anywhere; }
.prow__arrow { color: var(--teal-600); flex: none; }
.prow__new { font-weight: 700; color: var(--navy-800); overflow-wrap: anywhere; }
.tag { font-size: 0.6875rem; font-weight: 700; padding: .18rem .5rem; border-radius: 999px; white-space: nowrap; }
.tag--ok { background: rgba(31, 138, 125, .12); color: var(--teal-700); }
.panel__foot {
  margin-top: var(--space-5); padding-top: var(--space-4); border-top: 1px dashed var(--border-strong);
  display: flex; align-items: baseline; justify-content: space-between; gap: var(--space-4);
  font-size: var(--text-sm); color: var(--text-muted);
}
.panel__foot strong { font-family: 'Satoshi', sans-serif; font-size: var(--text-lg); color: var(--navy-800); font-variant-numeric: tabular-nums; }
.panel__note { margin-top: var(--space-3); font-size: var(--text-xs); color: var(--text-faint); }
@media (max-width: 940px) {
  .hero__grid { grid-template-columns: minmax(0, 1fr); }
  .hero__title { max-width: 24ch; }
}
@media (max-width: 520px) {
  .prow { grid-template-columns: minmax(0, 1fr) auto; row-gap: .35rem; }
  .prow__arrow { transform: rotate(90deg); justify-self: start; grid-column: 1; }
  .prow__new { grid-column: 1 / -1; }
}

/* ================= problem cards ================= */
.cards-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: clamp(var(--space-5), 2.4vw, var(--space-8)); }
.pcard {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: clamp(var(--space-6), 2.4vw, var(--space-8)); box-shadow: var(--shadow-sm);
  transition: transform .25s ease, box-shadow .25s ease;
}
.pcard:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.pcard__top { display: flex; align-items: center; gap: var(--space-4); margin-bottom: var(--space-6); }
.pcard__icon {
  flex: none; width: 52px; height: 52px; border-radius: 13px; display: grid; place-items: center;
  background: linear-gradient(150deg, rgba(18, 58, 99, .1), rgba(46, 224, 176, .18));
  color: var(--navy-700);
}
.pcard__icon svg { width: 28px; height: 28px; }
.pcard h3 { font-size: var(--text-lg); font-weight: 700; }
.split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: var(--space-5); }
.split__col { padding-top: var(--space-4); border-top: 2px solid var(--border); }
.split__col--fix { border-top-color: var(--teal-400); }
.split__label { font-size: var(--text-xs); font-weight: 700; text-transform: uppercase; letter-spacing: .12em; color: var(--text-faint); margin-bottom: var(--space-3); }
.split__col--fix .split__label { color: var(--teal-700); }
.ticks { display: grid; gap: var(--space-3); font-size: var(--text-sm); color: var(--text-muted); }
.ticks li { position: relative; padding-left: 1.35rem; }
.ticks li::before {
  content: ''; position: absolute; left: 0; top: .58em; width: 9px; height: 9px; border-radius: 2px;
}
.ticks--pain li::before { background: #cfd8d3; transform: rotate(45deg); }
.ticks--fix li::before { background: var(--grad); }
@media (max-width: 560px) { .split { grid-template-columns: minmax(0, 1fr); } }

/* ================= steps ================= */
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: clamp(var(--space-5), 2.2vw, var(--space-8)); }
.step {
  position: relative; padding: var(--space-6) var(--space-5) var(--space-6);
  border-radius: var(--radius); border: 1px solid rgba(238, 244, 242, .14);
  background: rgba(255, 255, 255, .04);
}
.step__num {
  font-family: 'Satoshi', sans-serif; font-size: var(--text-xs); font-weight: 900; letter-spacing: .12em;
  color: var(--teal-300); display: block; margin-bottom: var(--space-5);
}
.step__icon { display: block; color: var(--teal-300); margin-bottom: var(--space-4); }
.step__icon svg { width: 32px; height: 32px; }
.step h3 { font-size: var(--text-base); font-weight: 700; margin-bottom: var(--space-3); }
.step p { font-size: var(--text-sm); color: var(--text-inv-muted); }

/* ================= tabs ================= */
.tabs { border: 1px solid var(--border); border-radius: var(--radius-lg); background: var(--surface); box-shadow: var(--shadow-sm); overflow: hidden; }
.tabs__list { display: flex; flex-wrap: wrap; gap: var(--space-1); padding: var(--space-3) var(--space-3) 0; border-bottom: 1px solid var(--border); background: var(--surface-2); }
.tab {
  appearance: none; background: transparent; border: 1px solid transparent; border-bottom: none;
  font-family: 'Satoshi', sans-serif; font-size: var(--text-sm); font-weight: 700; color: var(--text-muted);
  padding: .75rem 1.15rem; border-radius: 10px 10px 0 0; cursor: pointer;
  transition: background-color .2s ease, color .2s ease;
}
.tab:hover { color: var(--navy-700); }
.tab[aria-selected='true'] { background: var(--surface); color: var(--navy-800); border-color: var(--border); box-shadow: inset 0 3px 0 0 var(--teal-400); margin-bottom: -1px; }
.tabpanel { padding: clamp(var(--space-6), 3vw, var(--space-10)); }
.tabpanel[hidden] { display: none; }
.tabpanel h3 { font-size: var(--text-lg); font-weight: 700; margin-bottom: var(--space-6); }
.feats { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: clamp(var(--space-5), 2vw, var(--space-8)); }
.feats li { display: flex; gap: var(--space-4); }
.feats svg { width: 26px; height: 26px; flex: none; color: var(--teal-700); margin-top: .15rem; }
.feats strong { display: block; font-family: 'Satoshi', sans-serif; font-size: var(--text-base); color: var(--navy-800); margin-bottom: .3rem; }
.feats span { font-size: var(--text-sm); color: var(--text-muted); display: block; }

/* ================= ROI ================= */
.roi__grid { display: grid; grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr); gap: clamp(var(--space-8), 4vw, var(--space-16)); align-items: start; }
.counter { margin: var(--space-8) 0 var(--space-8); padding: var(--space-6); background: var(--surface); border: 1px solid var(--border); border-left: 4px solid transparent; border-image: none; border-radius: var(--radius); box-shadow: var(--shadow-sm); position: relative; overflow: hidden; }
.counter::before { content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 4px; background: var(--grad); }
.counter__value {
  display: block; font-family: 'Satoshi', sans-serif; font-weight: 900;
  font-size: clamp(2.25rem, 1.4rem + 3vw, 3.5rem); letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums; color: var(--navy-800); line-height: 1;
}
.counter__label { display: block; margin-top: var(--space-3); font-size: var(--text-sm); color: var(--text-muted); }

.roi__table-wrap { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); padding: clamp(var(--space-4), 2vw, var(--space-6)); }
.roi-table { width: 100%; border-collapse: collapse; font-size: var(--text-sm); }
.roi-table caption { caption-side: top; text-align: left; font-size: var(--text-xs); color: var(--text-faint); padding-bottom: var(--space-4); }
.roi-table th, .roi-table td { text-align: left; padding: .85rem .75rem; border-bottom: 1px solid var(--border); vertical-align: top; }
.roi-table thead th {
  font-family: 'Satoshi', sans-serif; font-size: var(--text-xs); text-transform: uppercase;
  letter-spacing: .1em; color: var(--text-faint); border-bottom: 2px solid var(--border-strong);
}
.roi-table thead th:last-child { color: var(--teal-700); }
.roi-table tbody th { font-family: 'Satoshi', sans-serif; font-weight: 700; color: var(--navy-800); }
.roi-table tbody tr:last-child th, .roi-table tbody tr:last-child td { border-bottom: none; }
.roi-table tbody tr:hover { background: var(--surface-2); }
.cell { display: inline-flex; align-items: baseline; gap: .4rem; }
.cell--bad { color: var(--text-muted); }
.cell--good { color: var(--teal-700); font-weight: 700; }
.cell--good::before, .cell--bad::before { font-weight: 700; }
.cell--bad::before { content: '—'; color: var(--text-faint); }
.cell--good::before { content: '↑'; }
.fineprint { margin-top: var(--space-5); font-size: var(--text-xs); color: var(--text-faint); }
@media (max-width: 900px) { .roi__grid { grid-template-columns: minmax(0, 1fr); } }
@media (max-width: 420px) { .roi-table th, .roi-table td { padding: .7rem .4rem; } }

/* ================= infographic ================= */
.case-figure { margin: 0; }
.case-figure__link {
  display: block; position: relative; background: var(--surface-2);
  border: 1px solid var(--border-strong); border-radius: var(--radius-lg);
  box-shadow: var(--shadow); overflow: hidden; text-decoration: none;
}
.case-figure__scroll { overflow-x: auto; overscroll-behavior-x: contain; -webkit-overflow-scrolling: touch; }
.case-figure__scroll img { width: 100%; height: auto; min-width: 720px; }
.case-figure__zoom {
  position: absolute; right: var(--space-4); bottom: var(--space-4);
  display: inline-flex; align-items: center; gap: .45rem;
  background: rgba(11, 36, 64, .9); color: #fff; font-size: var(--text-xs); font-weight: 600;
  padding: .5rem .8rem; border-radius: 999px; backdrop-filter: blur(6px);
  transition: background-color .2s ease, transform .2s ease;
}
.case-figure__link:hover .case-figure__zoom { background: var(--teal-700); transform: translateY(-2px); }
.case-figure figcaption { margin-top: var(--space-5); font-size: var(--text-sm); color: var(--text-muted); max-width: 78ch; }

.lightbox {
  position: fixed; inset: 0; z-index: 300; background: rgba(7, 22, 38, .94);
  display: grid; grid-template-rows: auto 1fr auto; padding: var(--space-4);
}
.lightbox[hidden] { display: none; }
.lightbox__close {
  justify-self: end; background: rgba(255, 255, 255, .1); color: #fff;
  border: 1px solid rgba(255, 255, 255, .22); border-radius: 10px; padding: .55rem; cursor: pointer;
}
.lightbox__close:hover { background: rgba(255, 255, 255, .2); }
.lightbox__stage { overflow: auto; display: grid; place-items: center; padding: var(--space-4) 0; }
.lightbox__stage img { max-width: none; width: min(1600px, 190vw); height: auto; border-radius: var(--radius-sm); }
.lightbox__hint { text-align: center; color: rgba(255, 255, 255, .6); font-size: var(--text-xs); }

/* ================= FAQ ================= */
.faq__grid { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: clamp(var(--space-8), 4vw, var(--space-16)); align-items: start; }
.acc { display: grid; gap: var(--space-3); }
.acc__item { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; transition: border-color .2s ease; }
.acc__item:hover { border-color: var(--border-strong); }
.acc__item h3 { margin: 0; font-size: inherit; }
.acc__btn {
  width: 100%; display: flex; align-items: center; justify-content: space-between; gap: var(--space-4);
  text-align: left; background: transparent; border: none; cursor: pointer;
  font-family: 'Satoshi', sans-serif; font-size: var(--text-base); font-weight: 700; color: var(--navy-800);
  padding: var(--space-5) var(--space-6);
}
.acc__chev { flex: none; color: var(--teal-700); display: grid; place-items: center; transition: transform .25s ease; }
.acc__btn[aria-expanded='true'] .acc__chev { transform: rotate(180deg); }
.acc__panel { padding: 0 var(--space-6) var(--space-6); }
.acc__panel[hidden] { display: none; }
.acc__panel p { font-size: var(--text-sm); color: var(--text-muted); max-width: 68ch; }
@media (max-width: 900px) { .faq__grid { grid-template-columns: minmax(0, 1fr); } }

/* ================= demo ================= */
.demo__grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(var(--space-8), 4vw, var(--space-16)); align-items: start; }
.demo__points { margin-top: var(--space-8); display: grid; gap: var(--space-4); }
.demo__points li { display: flex; gap: var(--space-3); align-items: flex-start; font-size: var(--text-sm); color: var(--text-inv); }
.demo__points svg { width: 20px; height: 20px; flex: none; color: var(--teal-300); margin-top: .15rem; }

.formcard {
  background: var(--surface); color: var(--text); border-radius: var(--radius-lg);
  padding: clamp(var(--space-6), 3vw, var(--space-8)); box-shadow: var(--shadow);
  border: 1px solid rgba(255, 255, 255, .2);
}
.formcard__note { font-size: var(--text-xs); color: var(--text-faint); margin-bottom: var(--space-6); padding-bottom: var(--space-4); border-bottom: 1px solid var(--border); }
.field { margin-bottom: var(--space-5); }
.field-row { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: var(--space-4); }
.field label { display: block; font-size: var(--text-xs); font-weight: 700; letter-spacing: .04em; text-transform: uppercase; color: var(--navy-700); margin-bottom: var(--space-2); }
.req { color: var(--teal-700); }
.opt { text-transform: none; letter-spacing: 0; font-weight: 500; color: var(--text-faint); }
.field input, .field select, .field textarea {
  width: 100%; font-family: inherit; font-size: var(--text-sm); color: var(--text);
  background: var(--surface-2); border: 1px solid var(--border-strong); border-radius: 10px;
  padding: .75rem .85rem; transition: border-color .18s ease, background-color .18s ease, box-shadow .18s ease;
}
.field textarea { resize: vertical; min-height: 92px; }
.field select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23566574' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='M6 10l6 6 6-6'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right .7rem center; background-size: 18px; padding-right: 2.4rem; }
.field input:focus, .field select:focus, .field textarea:focus { background: #fff; border-color: var(--teal-600); box-shadow: 0 0 0 3px rgba(46, 224, 176, .18); outline: none; }
.field input[aria-invalid='true'], .field select[aria-invalid='true'] { border-color: var(--danger); background: var(--danger-soft); }
.err { margin-top: var(--space-2); font-size: var(--text-xs); font-weight: 600; color: var(--danger); }
.err[hidden] { display: none; }
.formcard__legal { margin-top: var(--space-4); font-size: var(--text-xs); color: var(--text-faint); text-align: center; }

.spinner { display: none; width: 16px; height: 16px; border-radius: 50%; border: 2px solid rgba(255,255,255,.4); border-top-color: #fff; animation: spin .7s linear infinite; }
#submitBtn.is-loading { pointer-events: none; opacity: .85; }
#submitBtn.is-loading .spinner { display: inline-block; }
@keyframes spin { to { transform: rotate(360deg); } }

.success { text-align: left; }
.success[hidden] { display: none; }
.success__mark { display: block; color: var(--teal-600); margin-bottom: var(--space-5); }
.success__mark svg { width: 46px; height: 46px; }
.success h3 { font-size: var(--text-lg); font-weight: 700; margin-bottom: var(--space-4); }
.success p { font-size: var(--text-sm); color: var(--text-muted); margin-bottom: var(--space-6); max-width: 48ch; }
@media (max-width: 900px) { .demo__grid { grid-template-columns: minmax(0, 1fr); } }
@media (max-width: 420px) { .field-row { grid-template-columns: minmax(0, 1fr); } }

/* ================= footer ================= */
.footer { background: var(--surface); border-top: 1px solid var(--border); padding-block: clamp(var(--space-12), 5vw, var(--space-16)) var(--space-8); }
.footer__inner { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr); gap: clamp(var(--space-8), 4vw, var(--space-16)); }
.footer__brand p { margin-top: var(--space-5); font-size: var(--text-sm); color: var(--text-muted); max-width: 34ch; }
.footer__nav { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: var(--space-6); }
.footer__nav > div { display: grid; gap: var(--space-2); align-content: start; }
.footer__label { font-family: 'Satoshi', sans-serif; font-size: var(--text-xs); font-weight: 700; text-transform: uppercase; letter-spacing: .12em; color: var(--navy-800); margin-bottom: var(--space-2); }
.footer__nav a { font-size: var(--text-sm); color: var(--text-muted); text-decoration: none; }
.footer__nav a:hover { color: var(--teal-700); }
.footer__legal { margin-top: clamp(var(--space-8), 4vw, var(--space-12)); padding-top: var(--space-6); border-top: 1px solid var(--border); display: flex; flex-direction: column; gap: var(--space-3); }
.footer__legal p { font-size: var(--text-xs); color: var(--text-faint); max-width: 92ch; }
.footer__entity { color: var(--text-muted); font-weight: 600; }
.footer__copy { color: var(--text-faint); }
@media (max-width: 760px) { .footer__inner { grid-template-columns: minmax(0, 1fr); } }