/* ============================================================
   Instant.pub — design system
   Display: Source Serif 4 · Body: Inter · Mono: IBM Plex Mono
   Light + dark theming via [data-theme].
   ============================================================ */

:root {
  /* surfaces & ink (light) */
  --paper:      #F5F6FB;
  --paper-2:    #FFFFFF;
  --tint:       #EEF1FA;
  --card:       #FFFFFF;
  --ink:        #141A33;
  --ink-soft:   #424A6B;
  --ink-faint:  #717A99;
  --border:     #E2E7F4;
  --border-2:   #D6DCEE;

  /* brand */
  --indigo:     #3753C1;
  --indigo-700: #2A3E97;
  --indigo-deep:#1B2150;
  --indigo-night:#10142B;
  --mark:       #E2683C;
  --mark-soft:  #F4A07E;

  /* contextual */
  --accent:     #3753C1;   /* accent text/links on paper */
  --accent-2:   #2A3E97;
  --header-bg:  rgba(245,246,251,.82);
  --line-fill:  #ECEEF6;   /* faux doc text lines */

  --white-12:   rgba(255,255,255,.12);
  --white-65:   rgba(255,255,255,.65);

  --ff-display: "Source Serif 4", Georgia, "Times New Roman", serif;
  --ff-body:    "Inter", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  --ff-mono:    "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --maxw: 1120px;
  --r-sm: 8px;
  --r-md: 14px;
  --r-lg: 22px;
  --shadow-sm: 0 1px 2px rgba(20,26,51,.06), 0 4px 14px rgba(20,26,51,.05);
  --shadow-md: 0 10px 30px rgba(20,26,51,.10), 0 2px 6px rgba(20,26,51,.06);
  --shadow-lg: 0 30px 60px rgba(20,26,51,.18), 0 8px 20px rgba(20,26,51,.10);
}

[data-theme="dark"] {
  --paper:      #0D1120;
  --paper-2:    #141A2D;
  --tint:       #171E33;
  --card:       #141A2D;
  --ink:        #EDF0FA;
  --ink-soft:   #AEB6D4;
  --ink-faint:  #7E87A8;
  --border:     rgba(255,255,255,.10);
  --border-2:   rgba(255,255,255,.16);

  --accent:     #8FA1EC;
  --accent-2:   #A9B6F1;
  --header-bg:  rgba(13,17,32,.82);
  --line-fill:  rgba(255,255,255,.08);

  --shadow-sm: 0 1px 2px rgba(0,0,0,.4), 0 4px 14px rgba(0,0,0,.35);
  --shadow-md: 0 10px 30px rgba(0,0,0,.5), 0 2px 6px rgba(0,0,0,.4);
  --shadow-lg: 0 30px 60px rgba(0,0,0,.6), 0 8px 20px rgba(0,0,0,.45);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--ff-body);
  background: var(--paper);
  color: var(--ink);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  transition: background .25s ease, color .25s ease;
}

h1, h2, h3 { font-family: var(--ff-display); font-weight: 600; line-height: 1.08; letter-spacing: -.01em; margin: 0; color: var(--ink); }
p { margin: 0; }
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
ul { margin: 0; }

.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: 24px; }
.center-col { max-width: 760px; margin-inline: auto; }

.eyebrow {
  font-family: var(--ff-mono);
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--accent);
}
.eyebrow.on-dark { color: var(--mark-soft); }

.skip-link {
  position: absolute; left: -999px; top: 0; background: var(--indigo); color: #fff;
  padding: 10px 16px; border-radius: 0 0 var(--r-sm) 0; z-index: 200;
}
.skip-link:focus { left: 0; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5em;
  font-family: var(--ff-body); font-weight: 600; font-size: 16px;
  padding: 13px 24px; border-radius: 999px; border: 1px solid transparent;
  cursor: pointer; transition: transform .15s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease, color .2s ease;
}
.btn-primary { background: var(--indigo); color: #fff; box-shadow: 0 6px 18px rgba(55,83,193,.35); }
.btn-primary:hover { background: var(--indigo-700); transform: translateY(-1px); box-shadow: 0 10px 24px rgba(55,83,193,.42); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--border-2); }
.btn-ghost:hover { border-color: var(--indigo); color: var(--accent); }
.btn-light { background: #fff; color: var(--indigo-deep); }
.btn-light:hover { transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-outline-light { background: transparent; color: #fff; border-color: var(--white-12); }
.btn-outline-light:hover { border-color: var(--white-65); }
.btn-lg { padding: 15px 30px; font-size: 17px; }
.btn-block { width: 100%; }

/* ---------- header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  background: var(--header-bg);
  border-bottom: 1px solid var(--border);
}
.header-row { display: flex; align-items: center; justify-content: space-between; height: 70px; gap: 20px; }
.nav-links { display: flex; gap: 26px; align-items: center; }
.nav-links a { font-size: 15.5px; color: var(--ink-soft); font-weight: 500; transition: color .15s; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--accent); }
.header-cta { display: flex; align-items: center; gap: 12px; }
.header-login { font-size: 15.5px; font-weight: 600; color: var(--ink-soft); }
.header-login:hover { color: var(--accent); }

/* logo */
.logo { display: inline-flex; align-items: center; }
.logo img { height: 30px; width: auto; }
[data-theme="dark"] .logo img { filter: brightness(0) invert(1); opacity: .96; }

/* theme toggle */
.theme-toggle {
  display: inline-grid; place-items: center; width: 38px; height: 38px; flex: none;
  border-radius: 999px; border: 1px solid var(--border-2); background: var(--paper-2);
  color: var(--ink-soft); cursor: pointer; transition: color .15s, border-color .15s, background .15s;
}
.theme-toggle:hover { color: var(--accent); border-color: var(--indigo); }
.theme-toggle svg { width: 18px; height: 18px; }
.theme-toggle .icon-moon { display: none; }
[data-theme="dark"] .theme-toggle .icon-sun { display: none; }
[data-theme="dark"] .theme-toggle .icon-moon { display: block; }

/* mobile nav */
.nav-toggle { display: none; }
.mobile-nav { display: none; }

/* ---------- hero ---------- */
.hero { padding: 64px 0 86px; overflow: clip; }
.hero-grid { display: grid; grid-template-columns: 1.04fr .96fr; gap: 56px; align-items: center; }
.hero h1 { font-size: clamp(38px, 5.2vw, 62px); margin: 18px 0 0; letter-spacing: -.02em; }
.hero h1 em { font-style: italic; color: var(--accent); }
.hero-sub { font-size: 19px; color: var(--ink-soft); margin-top: 22px; max-width: 40ch; }
.hero-sub b { color: var(--ink); font-weight: 600; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }
.hero-note { font-family: var(--ff-mono); font-size: 12.5px; color: var(--ink-faint); margin-top: 22px; letter-spacing: .01em; }
.hero-note span { color: var(--accent); }

/* ---------- the marked document (signature) ---------- */
.doc-stage { position: relative; display: flex; justify-content: center; padding: 10px 0; }
.doc {
  position: relative; width: min(370px, 92%); aspect-ratio: 1 / 1.34;
  background: #fff; border-radius: 10px; box-shadow: var(--shadow-lg);
  padding: 26px 26px 0; transform: rotate(-2deg); overflow: hidden;
  border: 1px solid #eef0f7; color: #141A33;
}
.doc-tag {
  position: absolute; top: 12px; right: 12px; font-family: var(--ff-mono);
  font-size: 10px; color: #717A99; background: #EEF1FA;
  border: 1px solid #E2E7F4; border-radius: 6px; padding: 3px 7px; letter-spacing: .02em;
}
.doc-kicker { font-family: var(--ff-mono); font-size: 9.5px; letter-spacing: .18em; text-transform: uppercase; color: var(--indigo); margin-bottom: 8px; }
.doc-title { font-family: var(--ff-display); font-weight: 600; font-size: 19px; line-height: 1.18; color: #141A33; max-width: 86%; }
.doc-lines { margin-top: 16px; display: flex; flex-direction: column; gap: 8px; }
.doc-lines i { display: block; height: 7px; border-radius: 4px; background: #eceef6; }
.doc-lines i:nth-child(2){ width: 92%; } .doc-lines i:nth-child(3){ width: 97%; }
.doc-lines i:nth-child(4){ width: 78%; }
.doc-watermark { position: absolute; inset: 0; display: grid; place-items: center; pointer-events: none; }
.doc-watermark span {
  font-family: var(--ff-body); font-weight: 700; font-size: 14px; letter-spacing: .04em;
  color: rgba(55,83,193,.12); transform: rotate(-24deg); white-space: nowrap; text-align: center; line-height: 2.6;
}
/* layered marks list, INSIDE the document */
.doc-marks {
  position: relative; z-index: 2; margin-top: 18px; padding-top: 14px;
  border-top: 1px dashed #E2E7F4; display: flex; flex-direction: column; gap: 9px;
}
.doc-mark { display: flex; align-items: center; gap: 9px; font-size: 12.5px; font-weight: 600; color: #141A33; }
.doc-mark .dotc { width: 8px; height: 8px; border-radius: 50%; background: var(--indigo); flex: none; }
.doc-mark .dotc.mark { background: var(--mark); }
.doc-footer {
  position: absolute; left: 0; right: 0; bottom: 0; padding: 11px 16px;
  border-top: 1px solid #E2E7F4; background: #fcfcff;
  font-family: var(--ff-mono); font-size: 10px; color: #424A6B;
  display: flex; align-items: center; gap: 6px;
}
.doc-footer .pin { color: var(--mark); }

/* ---------- generic section ---------- */
.section { padding: 88px 0; }
.section-tint { background: var(--tint); }
.section-dark { background: var(--indigo-night); color: #fff; }
.section-head { max-width: 640px; }
.section-head.center { margin-inline: auto; text-align: center; }
.section-head h2 { font-size: clamp(29px, 3.6vw, 43px); margin-top: 14px; }
.section-head p { color: var(--ink-soft); font-size: 18px; margin-top: 16px; }
.section-dark .section-head h2, .section-dark h2 { color: #fff; }
.section-dark .section-head p, .section-dark p { color: rgba(255,255,255,.72); }

.page-hero { padding: 72px 0 36px; }
.page-hero .section-head { max-width: 720px; }
.page-hero h1 { font-size: clamp(34px, 4.6vw, 54px); margin-top: 14px; letter-spacing: -.02em; }
.page-hero h1 em { font-style: italic; color: var(--accent); }
.page-hero p { color: var(--ink-soft); font-size: 19px; margin-top: 18px; max-width: 60ch; }

/* ---------- cards / grids ---------- */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }

.dilemma-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 46px; }
.dilemma-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--r-lg); padding: 28px 26px; }
.dilemma-card h3 { font-family: var(--ff-body); font-weight: 700; font-size: 18px; letter-spacing: 0; display: flex; align-items: center; gap: 10px; }
.dilemma-card h3 .x { color: var(--mark); font-family: var(--ff-mono); }
.dilemma-card p { color: var(--ink-soft); font-size: 15.5px; margin-top: 12px; }
.dilemma-resolve {
  margin-top: 30px; padding: 26px 30px; border-radius: var(--r-lg);
  background: linear-gradient(100deg, var(--indigo) 0%, var(--indigo-700) 100%);
  color: #fff; font-family: var(--ff-display); font-size: clamp(20px, 2.4vw, 27px); line-height: 1.3;
}
.dilemma-resolve b { color: #fff; }

/* steps */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-top: 50px; }
.step { background: var(--card); border: 1px solid var(--border); border-radius: var(--r-md); padding: 24px 22px; }
.step-no { font-family: var(--ff-mono); font-size: 13px; color: var(--accent); font-weight: 600; }
.step h3 { font-family: var(--ff-body); font-weight: 700; font-size: 17.5px; margin-top: 14px; }
.step p { color: var(--ink-soft); font-size: 14.5px; margin-top: 8px; }

/* pillars */
.pillars { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 52px; }
.pillar { background: var(--card); border: 1px solid var(--border); border-radius: var(--r-lg); padding: 30px 28px; }
.pillar-ico { width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center; background: var(--tint); color: var(--accent); margin-bottom: 18px; }
.pillar h3 { font-size: 23px; }
.pillar .lede { font-weight: 600; color: var(--ink); margin-top: 6px; font-family: var(--ff-body); font-size: 15px; }
.pillar p { color: var(--ink-soft); font-size: 15px; margin-top: 12px; }
.pillar p em { font-style: italic; color: var(--accent); }

/* deterrence (dark band) */
.deter { background: var(--indigo-night); color: #fff; padding: 96px 0; overflow: clip; }
.deter-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.deter h2 { font-size: clamp(29px, 4vw, 46px); color: #fff; }
.deter h2 em { font-style: italic; color: var(--mark-soft); }
.deter p { color: rgba(255,255,255,.72); font-size: 18px; margin-top: 20px; max-width: 46ch; }
.marks { display: grid; gap: 12px; }
.mark-row {
  display: flex; align-items: flex-start; gap: 14px; padding: 16px 18px;
  background: rgba(255,255,255,.04); border: 1px solid var(--white-12); border-radius: var(--r-md);
}
.mark-row .midx { font-family: var(--ff-mono); font-size: 12px; color: var(--mark-soft); flex: none; width: 26px; padding-top: 2px; }
.mark-row b { font-family: var(--ff-body); font-weight: 600; font-size: 16px; display: block; color: #fff; }
.mark-row small { color: rgba(255,255,255,.55); font-size: 13.5px; font-family: var(--ff-mono); }

/* integrations */
.integrations { text-align: center; }
.chips { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px; margin-top: 40px; }
.tool {
  font-family: var(--ff-mono); font-size: 14px; font-weight: 500; color: var(--ink);
  background: var(--card); border: 1px solid var(--border); border-radius: 999px; padding: 12px 22px;
  box-shadow: var(--shadow-sm);
}
.tool span { color: var(--accent); }

/* personas */
.persona-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-top: 48px; }
.persona { background: var(--card); border: 1px solid var(--border); border-radius: var(--r-md); padding: 26px 22px; }
.persona .pico { font-size: 22px; }
.persona h3 { font-family: var(--ff-body); font-weight: 700; font-size: 17px; margin-top: 14px; }
.persona p { color: var(--ink-soft); font-size: 14px; margin-top: 8px; }

/* quote */
.quote-card {
  max-width: 760px; margin: 46px auto 0; background: var(--card);
  border: 1px solid var(--border); border-radius: var(--r-lg); padding: 40px 44px; box-shadow: var(--shadow-md); position: relative;
}
.quote-card .badge { position: absolute; top: -11px; left: 32px; font-family: var(--ff-mono); font-size: 10.5px; letter-spacing: .12em; text-transform: uppercase; background: var(--mark); color: #fff; padding: 4px 10px; border-radius: 6px; }
.quote-card blockquote { font-family: var(--ff-display); font-size: 24px; line-height: 1.45; color: var(--ink); margin: 6px 0 0; }
.quote-card .who { margin-top: 22px; font-size: 14.5px; color: var(--ink-soft); font-family: var(--ff-mono); }
.quote-card .who b { color: var(--ink); }

/* ---------- pricing ---------- */
.beta-banner {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 12px;
  margin: 0 auto 40px; max-width: 580px; text-align: center;
  background: linear-gradient(100deg, var(--indigo) 0%, var(--indigo-700) 100%); color: #fff;
  border-radius: 999px; padding: 12px 24px; font-weight: 600; font-size: 15.5px;
}
.beta-banner em { font-style: normal; background: rgba(255,255,255,.18); padding: 3px 10px; border-radius: 999px; font-family: var(--ff-mono); font-size: 12.5px; letter-spacing: .04em; }
.tiers { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.tier { background: var(--card); border: 1px solid var(--border); border-radius: var(--r-lg); padding: 30px 28px; display: flex; flex-direction: column; }
.tier.featured { border-color: var(--indigo); box-shadow: 0 0 0 1px var(--indigo), var(--shadow-md); position: relative; }
.tier.featured .rec { position: absolute; top: -12px; left: 50%; transform: translateX(-50%); background: var(--indigo); color: #fff; font-family: var(--ff-mono); font-size: 10.5px; letter-spacing: .1em; text-transform: uppercase; padding: 4px 12px; border-radius: 999px; }
.tier .tname { font-family: var(--ff-mono); font-size: 13px; letter-spacing: .12em; text-transform: uppercase; color: var(--accent); }
.tier .price { font-family: var(--ff-display); font-size: 38px; margin-top: 14px; color: var(--ink); }
.tier .price s { font-size: 17px; color: var(--ink-faint); text-decoration-color: var(--mark); margin-right: 8px; font-family: var(--ff-body); }
.tier .per { font-size: 14px; color: var(--ink-soft); }
.tier ul { list-style: none; padding: 0; margin: 22px 0 26px; display: flex; flex-direction: column; gap: 11px; }
.tier li { font-size: 14.5px; color: var(--ink-soft); padding-left: 26px; position: relative; }
.tier li::before { content: ""; position: absolute; left: 0; top: 7px; width: 13px; height: 8px; border-left: 2px solid var(--accent); border-bottom: 2px solid var(--accent); transform: rotate(-45deg); }
.tier .btn { margin-top: auto; }
.pricing-foot { text-align: center; margin-top: 28px; font-size: 15px; color: var(--ink-soft); }
.pricing-foot a { color: var(--accent); font-weight: 600; }

/* comparison table */
.compare-wrap { margin-top: 56px; overflow-x: auto; }
.compare { width: 100%; border-collapse: collapse; min-width: 620px; font-size: 15px; }
.compare th, .compare td { text-align: center; padding: 16px 18px; border-bottom: 1px solid var(--border); }
.compare th { font-family: var(--ff-mono); font-size: 12px; letter-spacing: .08em; text-transform: uppercase; color: var(--accent); }
.compare td:first-child, .compare th:first-child { text-align: left; color: var(--ink); font-weight: 500; }
.compare tbody td { color: var(--ink-soft); }
.compare .yes { color: var(--indigo); font-weight: 700; }
.compare .no { color: var(--ink-faint); }
[data-theme="dark"] .compare .yes { color: var(--accent); }

/* ---------- FAQ accordion ---------- */
.faq-list { max-width: 800px; margin: 46px auto 0; display: flex; flex-direction: column; gap: 12px; }
.faq-item { background: var(--card); border: 1px solid var(--border); border-radius: var(--r-md); overflow: hidden; }
.faq-item summary {
  list-style: none; cursor: pointer; padding: 20px 24px; font-weight: 600; font-size: 17px;
  display: flex; justify-content: space-between; align-items: center; gap: 16px; color: var(--ink);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary .chev { flex: none; transition: transform .2s ease; color: var(--accent); }
.faq-item[open] summary .chev { transform: rotate(45deg); }
.faq-item .faq-body { padding: 0 24px 22px; color: var(--ink-soft); font-size: 15.5px; }
.faq-item .faq-body p + p { margin-top: 12px; }

/* ---------- forms (contact) ---------- */
.form-card { max-width: 640px; margin: 0 auto; background: var(--card); border: 1px solid var(--border); border-radius: var(--r-lg); padding: 36px 36px; box-shadow: var(--shadow-sm); }
.field { margin-bottom: 18px; }
.field label { display: block; font-size: 13.5px; font-weight: 600; color: var(--ink); margin-bottom: 7px; }
.field input, .field select, .field textarea {
  width: 100%; font-family: var(--ff-body); font-size: 16px; color: var(--ink);
  background: var(--paper-2); border: 1px solid var(--border-2); border-radius: var(--r-sm);
  padding: 12px 14px; transition: border-color .15s, box-shadow .15s;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--indigo); box-shadow: 0 0 0 3px rgba(55,83,193,.18);
}
.field textarea { min-height: 130px; resize: vertical; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-note { font-size: 13px; color: var(--ink-faint); margin-top: 6px; }
.alert { border-radius: var(--r-md); padding: 16px 18px; margin-bottom: 24px; font-size: 15px; }
.alert-success { background: rgba(34,160,90,.12); border: 1px solid rgba(34,160,90,.35); color: #1c7a47; }
.alert-error { background: rgba(226,104,60,.12); border: 1px solid rgba(226,104,60,.35); color: #b54a26; }
[data-theme="dark"] .alert-success { color: #6fd79e; }
[data-theme="dark"] .alert-error { color: #f4a07e; }
.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 48px; align-items: start; }
.contact-aside h3 { font-size: 22px; }
.contact-aside p { color: var(--ink-soft); margin-top: 12px; font-size: 15.5px; }
.contact-aside .line { display: flex; gap: 10px; align-items: center; margin-top: 16px; font-family: var(--ff-mono); font-size: 14px; color: var(--ink-soft); }
.contact-aside .line span { color: var(--accent); }

/* ---------- legal / prose ---------- */
.prose { max-width: 760px; margin: 0 auto; }
.prose h2 { font-size: 24px; margin-top: 40px; }
.prose h3 { font-family: var(--ff-body); font-weight: 700; font-size: 18px; margin-top: 26px; }
.prose p, .prose li { color: var(--ink-soft); font-size: 16px; margin-top: 14px; line-height: 1.7; }
.prose ul { padding-left: 22px; margin-top: 8px; }
.prose li { margin-top: 8px; }
.prose a { color: var(--accent); font-weight: 500; text-decoration: underline; text-underline-offset: 2px; }
.prose .updated { font-family: var(--ff-mono); font-size: 13px; color: var(--ink-faint); }
.prose strong { color: var(--ink); }

/* ---------- final CTA ---------- */
.final-cta { background: linear-gradient(115deg, var(--indigo) 0%, var(--indigo-deep) 100%); color: #fff; padding: 92px 0; text-align: center; }
.final-cta h2 { font-size: clamp(31px, 4.4vw, 50px); color: #fff; max-width: 18ch; margin-inline: auto; }
.final-cta p { color: rgba(255,255,255,.8); font-size: 18px; margin-top: 18px; }
.final-cta .hero-actions { justify-content: center; }

/* ---------- footer ---------- */
.site-footer { background: var(--indigo-night); color: rgba(255,255,255,.7); padding: 64px 0 40px; }
.footer-top { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 40px; }
.footer-brand img { height: 30px; filter: brightness(0) invert(1); }
.footer-brand p { margin-top: 16px; font-size: 14.5px; max-width: 30ch; color: rgba(255,255,255,.55); }
.footer-cols { display: flex; gap: 64px; flex-wrap: wrap; }
.footer-col h4 { font-family: var(--ff-mono); font-size: 11.5px; letter-spacing: .14em; text-transform: uppercase; color: rgba(255,255,255,.45); margin: 0 0 14px; font-weight: 500; }
.footer-col a, .footer-col p { display: block; font-size: 14.5px; color: rgba(255,255,255,.72); margin-bottom: 10px; }
.footer-col a:hover { color: #fff; }
.footer-bottom { margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--white-12); display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px; font-size: 13px; color: rgba(255,255,255,.45); }
.footer-bottom a { color: rgba(255,255,255,.6); }

/* ---------- reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---------- responsive ---------- */
@media (max-width: 940px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .deter-grid, .contact-grid { grid-template-columns: 1fr; gap: 36px; }
  .dilemma-grid, .pillars, .tiers, .grid-3 { grid-template-columns: 1fr; }
  .steps, .persona-grid, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .nav-links, .header-login { display: none; }
  .nav-toggle {
    display: inline-grid; place-items: center; width: 38px; height: 38px; flex: none;
    border-radius: 999px; border: 1px solid var(--border-2); background: var(--paper-2);
    color: var(--ink); cursor: pointer;
  }
  .nav-toggle svg { width: 20px; height: 20px; }
  .mobile-nav {
    display: none; flex-direction: column; gap: 4px; padding: 8px 24px 20px;
    border-bottom: 1px solid var(--border); background: var(--header-bg);
    backdrop-filter: saturate(140%) blur(10px);
  }
  .mobile-nav.open { display: flex; }
  .mobile-nav a { padding: 11px 4px; font-size: 16px; font-weight: 500; color: var(--ink-soft); border-bottom: 1px solid var(--border); }
  .mobile-nav a:last-of-type { border-bottom: 0; }
  .mobile-nav .btn { margin-top: 12px; }
}
@media (max-width: 560px) {
  body { font-size: 16px; }
  .section, .deter { padding: 60px 0; }
  .steps, .persona-grid, .grid-4, .field-row { grid-template-columns: 1fr; }
  .hero { padding: 40px 0 60px; }
  .form-card { padding: 26px 22px; }
  .quote-card { padding: 32px 26px; }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  body { transition: none; }
}