/* ==========================================================================
   ROGUE • GAIN - design system
   Software. Systems. Stories.

   One stylesheet, loaded on every page. Sections:
     01 Reset
     02 Tokens
     03 Base + typography
     04 Layout
     05 Header
     06 Footer
     07 Buttons
     08 Badges + labels
     09 Cards
     10 Forms
     11 Specs, lists, tables
     12 Hero + technical linework
     13 Product / interface framing
     14 Motion
     15 Literary (books) treatment
   ========================================================================== */

/* 01 Reset ---------------------------------------------------------------- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
img, svg, video { max-width: 100%; height: auto; display: block; }
button, input, select, textarea { font: inherit; color: inherit; }
a { color: inherit; }

/* 02 Tokens --------------------------------------------------------------- */
:root {
  /* Surfaces - ~70-75% of the page */
  --bg:            #08090A;
  --surface:       #111315;
  --surface-2:     #181B1E;
  --surface-3:     #1F2327;

  /* Line work */
  --border:        #23272B;
  --border-strong: #31363B;
  --border-yellow: rgba(245, 196, 0, 0.38);

  /* Text - silver / neutral, ~15-20% */
  --text:          #F2F3F4;
  --text-2:        #A7ADB4;
  --muted:         #858D96;   /* AA-safe on --bg for small text */
  --silver:        #A7ADB4;

  /* Accent - yellow, ~5-10%. Action, selection, status, emphasis. */
  --yellow:        #F5C400;
  --yellow-bright: #FFD426;
  --yellow-dim:    rgba(245, 196, 0, 0.12);
  --yellow-glow:   rgba(245, 196, 0, 0.06);

  /* Semantic status */
  --ok:            #5FBF7F;
  --warn:          #F5C400;
  --info:          #7FA9D8;

  /* Amazon - retained from the memoir site */
  --amazon:        #FF9900;
  --amazon-hover:  #E68A00;

  /* Type */
  --font-display: 'Archivo', 'Helvetica Neue', Arial, sans-serif;
  --font-body:    'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono:    ui-monospace, 'SF Mono', 'Cascadia Mono', 'JetBrains Mono', Consolas, monospace;

  /* Spacing scale */
  --s-1: 4px;   --s-2: 8px;   --s-3: 12px;  --s-4: 16px;
  --s-5: 24px;  --s-6: 32px;  --s-7: 48px;  --s-8: 64px;
  --s-9: 96px;  --s-10: 128px;

  /* Widths */
  --w-max:    1200px;
  --w-narrow: 780px;
  --w-prose:  680px;

  /* Radii - restrained. This brand is not soft. */
  --r-sm: 2px;
  --r-md: 3px;
  --r-lg: 4px;

  /* Elevation */
  --shadow-1: 0 1px 2px rgba(0,0,0,.4);
  --shadow-2: 0 8px 24px rgba(0,0,0,.5);
  --shadow-3: 0 24px 64px rgba(0,0,0,.65);

  /* Motion */
  --t-fast: 120ms ease;
  --t-base: 200ms ease;
  --t-slow: 400ms cubic-bezier(.22,.61,.36,1);

  /* Chrome */
  --header-h: 64px;
}

/* 03 Base + typography ---------------------------------------------------- */
html { scroll-behavior: smooth; }
html:focus-within { scroll-padding-top: calc(var(--header-h) + var(--s-5)); }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.015em;
  color: var(--text);
}

h1 { font-size: clamp(2.5rem, 5.2vw, 4.25rem); }
h2 { font-size: clamp(1.9rem, 3.6vw, 2.9rem); letter-spacing: -0.02em; }
h3 { font-size: clamp(1.25rem, 2vw, 1.55rem); }
h4 { font-size: 1.05rem; letter-spacing: 0; }

p { color: var(--text-2); }

/* Display wordmark lockup - sits above the cadence, never wraps mid-phrase */
.display-lockup {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 2.6vw, 2rem);
  line-height: 1;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text);
  white-space: nowrap;
}
.display-lockup .dot { color: var(--yellow); }

/* The three-word brand cadence: Software. Systems. Stories. - the hero's h1 */
.cadence {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.4rem, 5vw, 4rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-top: var(--s-5);
}
.cadence span { display: block; }
.cadence span::after { content: '.'; color: var(--yellow); }

.lede {
  font-size: 1.125rem;
  line-height: 1.75;
  color: var(--text-2);
  max-width: var(--w-prose);
}

.small { font-size: 0.875rem; }

.mono {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.02em;
}

/* Small-label style - the technical voice of the system */
.label {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--yellow);
}
.label--silver { color: var(--muted); }

/* Skip link */
.skip-link {
  position: absolute;
  left: var(--s-4);
  top: -100px;
  z-index: 2000;
  padding: var(--s-3) var(--s-5);
  background: var(--yellow);
  color: #08090A;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  transition: top var(--t-fast);
}
.skip-link:focus { top: var(--s-4); }

/* Focus - visible everywhere, never removed */
:focus-visible {
  outline: 2px solid var(--yellow);
  outline-offset: 3px;
  border-radius: var(--r-sm);
}

::selection { background: var(--yellow); color: #08090A; }

/* 04 Layout --------------------------------------------------------------- */
.container { width: 100%; max-width: var(--w-max); margin: 0 auto; padding: 0 var(--s-6); }
.container--narrow { max-width: var(--w-narrow); }

section { padding: var(--s-9) 0; }
.section--tight { padding: var(--s-8) 0; }

/* Hairline rule between major bands */
.rule { height: 1px; background: var(--border); border: 0; }
.rule--accent {
  height: 1px; border: 0;
  background: linear-gradient(90deg, var(--yellow) 0%, var(--border) 22%, var(--border) 100%);
}

/* Section header: eyebrow + title + optional lede */
.section-head { max-width: var(--w-prose); margin-bottom: var(--s-8); }
.section-head .label { margin-bottom: var(--s-4); }
.section-head h2 { margin-bottom: var(--s-4); }

.grid { display: grid; gap: var(--s-6); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

.stack > * + * { margin-top: var(--s-4); }
.stack-lg > * + * { margin-top: var(--s-6); }

.actions { display: flex; flex-wrap: wrap; gap: var(--s-4); align-items: center; }

/* 05 Header --------------------------------------------------------------- */
.site-header {
  position: sticky; top: 0; z-index: 1000;
  background: rgba(8, 9, 10, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.site-header__inner {
  height: var(--header-h);
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--s-6);
}

/* Wordmark - carries the identity */
.wordmark {
  display: inline-flex; align-items: center; gap: 0.42em;
  min-height: 44px;              /* comfortable tap target */
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.0625rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--text);
  white-space: nowrap;
  transition: color var(--t-fast);
}
.wordmark .dot {
  color: var(--yellow);
  font-size: 1.1em;
  line-height: 0;
  position: relative;
  top: -0.02em;
}
.wordmark:hover { color: #fff; }

/* Primary nav */
.nav { display: flex; align-items: center; gap: var(--s-2); }
.nav__list { display: flex; align-items: center; gap: var(--s-2); list-style: none; }

.nav__link {
  display: inline-flex; align-items: center;
  min-height: 44px;              /* comfortable tap target */
  padding: var(--s-2) var(--s-3);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-decoration: none;
  color: var(--text-2);
  border-radius: var(--r-sm);
  transition: color var(--t-fast), background var(--t-fast);
  position: relative;
}
.nav__link:hover { color: var(--text); background: var(--surface-2); }

/* Active state: yellow underline + yellow text. Not colour alone - the rule
   is a second, non-colour signal, and aria-current carries it to AT. */
.nav__link[aria-current="page"] { color: var(--yellow); }
.nav__link[aria-current="page"]::after {
  content: '';
  position: absolute;
  left: var(--s-3); right: var(--s-3); bottom: 0;
  height: 2px;
  background: var(--yellow);
}

/* Products dropdown */
.nav__group { position: relative; }
.nav__trigger {
  display: inline-flex; align-items: center; gap: var(--s-2);
  min-height: 44px;              /* comfortable tap target */
  padding: var(--s-2) var(--s-3);
  background: none; border: 0; cursor: pointer;
  font-size: 0.8125rem; font-weight: 500; letter-spacing: 0.04em;
  color: var(--text-2);
  border-radius: var(--r-sm);
  transition: color var(--t-fast), background var(--t-fast);
}
.nav__trigger:hover { color: var(--text); background: var(--surface-2); }
.nav__trigger[aria-expanded="true"] { color: var(--yellow); background: var(--surface-2); }
.nav__trigger .chev {
  width: 8px; height: 8px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg) translate(-1px, -1px);
  transition: transform var(--t-fast);
}
.nav__trigger[aria-expanded="true"] .chev { transform: rotate(-135deg) translate(-2px, -2px); }

.nav__menu {
  position: absolute; top: calc(100% + 10px); left: 0;
  min-width: 290px;
  background: var(--surface);
  border: 1px solid var(--border-strong);
  box-shadow: var(--shadow-3);
  padding: var(--s-2);
  list-style: none;
  display: none;
}
.nav__menu[data-open="true"] { display: block; }

.nav__menu a {
  display: block;
  padding: var(--s-3) var(--s-4);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: background var(--t-fast), border-color var(--t-fast);
}
.nav__menu a:hover,
.nav__menu a:focus-visible { background: var(--surface-2); border-left-color: var(--yellow); }
.nav__menu a[aria-current="page"] { border-left-color: var(--yellow); background: var(--surface-2); }

.nav__menu .mi-title {
  display: block;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--text);
  margin-bottom: 2px;
}
.nav__menu .mi-meta {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

/* Mobile menu toggle */
.nav__toggle {
  display: none;
  width: 44px; height: 44px;
  align-items: center; justify-content: center;
  background: none;
  border: 1px solid var(--border-strong);
  cursor: pointer;
  border-radius: var(--r-sm);
}
.nav__toggle span {
  display: block; position: relative;
  width: 18px; height: 1.5px; background: var(--text);
  transition: background var(--t-fast);
}
.nav__toggle span::before,
.nav__toggle span::after {
  content: ''; position: absolute; left: 0;
  width: 18px; height: 1.5px; background: var(--text);
  transition: transform var(--t-base), top var(--t-base);
}
.nav__toggle span::before { top: -6px; }
.nav__toggle span::after  { top: 6px; }
.nav__toggle[aria-expanded="true"] span { background: transparent; }
.nav__toggle[aria-expanded="true"] span::before { top: 0; transform: rotate(45deg); }
.nav__toggle[aria-expanded="true"] span::after  { top: 0; transform: rotate(-45deg); }

/* 06 Footer --------------------------------------------------------------- */
.site-footer {
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: var(--s-9) 0 var(--s-6);
  margin-top: var(--s-9);
}
.site-footer__grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: var(--s-7);
  padding-bottom: var(--s-8);
  border-bottom: 1px solid var(--border);
}
.site-footer .wordmark { font-size: 1.125rem; margin-bottom: var(--s-4); }
.footer-cadence {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--text-2);
  letter-spacing: 0.01em;
}
.footer-col h3 {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: var(--s-4);
}
.footer-col ul { list-style: none; }
.footer-col li + li { margin-top: var(--s-3); }
.footer-col a {
  font-size: 0.9375rem;
  color: var(--text-2);
  text-decoration: none;
  transition: color var(--t-fast);
}
.footer-col a:hover { color: var(--yellow); }

.site-footer__base {
  display: flex; flex-wrap: wrap; gap: var(--s-4);
  align-items: center; justify-content: space-between;
  padding-top: var(--s-6);
}
.footer-principles {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}
.footer-principles b { color: var(--yellow); font-weight: 500; }
.footer-copy { font-size: 0.8125rem; color: var(--muted); }

/* 07 Buttons -------------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--s-2);
  min-height: 46px;
  padding: var(--s-3) var(--s-6);
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-decoration: none;
  text-align: center;
  cursor: pointer;
  border: 1px solid transparent;
  border-radius: var(--r-sm);
  transition: background var(--t-fast), border-color var(--t-fast), color var(--t-fast), transform var(--t-fast);
}
.btn:active { transform: translateY(1px); }

/* Primary - yellow means action */
.btn--primary { background: var(--yellow); border-color: var(--yellow); color: #08090A; }
.btn--primary:hover { background: var(--yellow-bright); border-color: var(--yellow-bright); }

/* Secondary - outlined, silver */
.btn--secondary { background: transparent; border-color: var(--border-strong); color: var(--text); }
.btn--secondary:hover { border-color: var(--silver); background: var(--surface-2); }

/* Ghost - tertiary links that still need a hit target */
.btn--ghost { background: transparent; border-color: transparent; color: var(--text-2); padding-left: 0; }
.btn--ghost:hover { color: var(--yellow); }
.btn--ghost::after { content: '→'; transition: transform var(--t-fast); }
.btn--ghost:hover::after { transform: translateX(3px); }

/* Amazon - carried over from the memoir site, unchanged in spirit */
.btn--amazon { background: var(--amazon); border-color: var(--amazon); color: #111; font-weight: 700; }
.btn--amazon:hover { background: var(--amazon-hover); border-color: var(--amazon-hover); }

.btn--lg { min-height: 54px; padding: var(--s-4) var(--s-7); font-size: 0.9375rem; }
.btn--block { display: flex; width: 100%; }

.btn[disabled], .btn[aria-disabled="true"] { opacity: 0.5; cursor: not-allowed; }
.btn[disabled]:active { transform: none; }

/* 08 Badges + labels ------------------------------------------------------ */
.badge {
  display: inline-flex; align-items: center; gap: var(--s-2);
  padding: 5px var(--s-3);
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  border: 1px solid var(--border-strong);
  color: var(--text-2);
  border-radius: var(--r-sm);
  white-space: nowrap;
}
/* Status is never colour-only: each badge carries a glyph + text. */
.badge::before { content: ''; width: 6px; height: 6px; flex: none; border-radius: 50%; background: currentColor; }
.badge--live   { border-color: var(--border-yellow); color: var(--yellow); background: var(--yellow-dim); }
.badge--dev    { border-color: var(--border-strong); color: var(--silver); }
.badge--dev::before { border-radius: 0; transform: rotate(45deg); }
.badge--book   { border-color: var(--border-strong); color: var(--silver); }
.badge--book::before { border-radius: 0; }
.badge--mock   { border-color: var(--border-strong); color: var(--muted); background: var(--surface-2); }
.badge--mock::before { display: none; }

/* 09 Cards ---------------------------------------------------------------- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: var(--s-6);
  transition: border-color var(--t-base), background var(--t-base), transform var(--t-base);
}
.card--link:hover {
  border-color: var(--border-strong);
  background: var(--surface-2);
  transform: translateY(-2px);
}
.card h3 { margin-bottom: var(--s-3); }
.card p { font-size: 0.9375rem; }

/* Numbered/principle card - the measurement reference */
.principle { border-top: 1px solid var(--border); padding-top: var(--s-5); }
.principle__idx {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
  color: var(--yellow);
  margin-bottom: var(--s-4);
  display: block;
}
.principle h3 {
  font-size: 1.375rem;
  margin-bottom: var(--s-3);
}
.principle p { font-size: 0.9375rem; color: var(--text-2); }

/* Product row - deliberately not a grid of identical feature cards */
.product-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--s-8);
  align-items: center;
  padding: var(--s-9) 0;
  border-top: 1px solid var(--border);
}
.product-row--flip .product-row__media { order: -1; }
.product-row__meta { display: flex; flex-wrap: wrap; gap: var(--s-3); margin-bottom: var(--s-5); }
.product-row h3 {
  font-size: clamp(1.75rem, 3vw, 2.4rem);
  letter-spacing: -0.02em;
  margin-bottom: var(--s-3);
}
.product-row__tagline {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.0625rem;
  color: var(--yellow);
  margin-bottom: var(--s-4);
}
.product-row__body { color: var(--text-2); margin-bottom: var(--s-5); }

/* 10 Forms ---------------------------------------------------------------- */
.form { max-width: var(--w-prose); }
.form__grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--s-5); }
.field { display: flex; flex-direction: column; gap: var(--s-2); margin-bottom: var(--s-5); }
.field--full { grid-column: 1 / -1; }

.field label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-2);
}
.field .req { color: var(--yellow); }
.field .opt { color: var(--muted); letter-spacing: 0.04em; text-transform: none; }

.field input,
.field select,
.field textarea {
  width: 100%;
  min-height: 46px;
  padding: var(--s-3) var(--s-4);
  background: var(--bg);
  border: 1px solid var(--border-strong);
  border-radius: var(--r-sm);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  transition: border-color var(--t-fast), background var(--t-fast);
}
.field textarea { min-height: 132px; line-height: 1.7; resize: vertical; }
.field input::placeholder,
.field textarea::placeholder { color: var(--muted); }
.field input:hover,
.field select:hover,
.field textarea:hover { border-color: var(--silver); }
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: 2px solid var(--yellow);
  outline-offset: 1px;
  border-color: var(--yellow);
  background: var(--surface);
}

/* Invalid - outlined + message + aria-invalid. Never colour alone. */
.field input[aria-invalid="true"],
.field select[aria-invalid="true"],
.field textarea[aria-invalid="true"] { border-color: #E5484D; }
.field__error {
  display: none;
  font-size: 0.8125rem;
  color: #FF9498;
}
.field__error::before { content: '✕  '; }
.field__error[data-show="true"] { display: block; }

/* Honeypot - hidden from humans, reachable by bots */
.hp {
  position: absolute !important;
  left: -9999px !important;
  width: 1px; height: 1px;
  overflow: hidden;
}

/* Form status region */
.form__status {
  display: none;
  margin-top: var(--s-5);
  padding: var(--s-4) var(--s-5);
  border: 1px solid var(--border-strong);
  border-left-width: 2px;
  background: var(--surface-2);
  font-size: 0.9375rem;
  line-height: 1.6;
}
.form__status[data-state="success"] { display: block; border-left-color: var(--ok); }
.form__status[data-state="error"]   { display: block; border-left-color: #E5484D; }
.form__status[data-state="sending"] { display: block; border-left-color: var(--silver); }
/* Not wired to a backend yet - say so plainly, never fake a success. */
.form__status[data-state="unconfigured"] { display: block; border-left-color: var(--yellow); }
.form__status strong { color: var(--text); }

/* Banner shown above an unconnected form */
.form-notice {
  display: flex; gap: var(--s-4);
  padding: var(--s-4) var(--s-5);
  margin-bottom: var(--s-6);
  background: var(--yellow-dim);
  border: 1px solid var(--border-yellow);
  border-radius: var(--r-sm);
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--text-2);
  max-width: var(--w-prose);
}
.form-notice .label { flex: none; color: var(--yellow); }
.form-notice strong { color: var(--text); }

/* 11 Specs, lists, tables ------------------------------------------------- */
.spec-list { list-style: none; }
.spec-list li {
  display: flex; justify-content: space-between; gap: var(--s-5);
  padding: var(--s-3) 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.9375rem;
}
.spec-list dt, .spec-list .k {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}
.spec-list dd, .spec-list .v { color: var(--text); text-align: right; }

/* Tag cloud for format/feature chips */
.chips { display: flex; flex-wrap: wrap; gap: var(--s-2); list-style: none; }
.chips li {
  padding: 6px var(--s-3);
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: var(--r-sm);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--text-2);
}
.chips li[data-accent] { border-color: var(--border-yellow); color: var(--yellow); }

/* Ticked list */
.ticks { list-style: none; }
.ticks li {
  position: relative;
  padding: var(--s-3) 0 var(--s-3) var(--s-6);
  border-bottom: 1px solid var(--border);
  color: var(--text-2);
  font-size: 0.9375rem;
}
.ticks li::before {
  content: '';
  position: absolute; left: 0; top: 21px;
  width: 10px; height: 1px;
  background: var(--yellow);
}

/* Numbered layer list (Connect / Understand / Recommend / Automate) */
.layers { counter-reset: layer; list-style: none; }
.layers > li {
  counter-increment: layer;
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: var(--s-5);
  padding: var(--s-6) 0;
  border-top: 1px solid var(--border);
}
.layers > li::before {
  content: '0' counter(layer);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--yellow);
  padding-top: 6px;
}
.layers h3 { font-size: 1.375rem; margin-bottom: var(--s-2); }
.layers p { font-size: 0.9375rem; }

/* Callout - a strategic statement, not a marketing scream */
.callout {
  border-left: 2px solid var(--yellow);
  padding: var(--s-5) 0 var(--s-5) var(--s-6);
  margin: var(--s-7) 0;
  max-width: var(--w-narrow);
}
.callout p {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.25rem, 2.2vw, 1.6rem);
  line-height: 1.4;
  color: var(--text);
  letter-spacing: -0.01em;
}
.callout p + p { margin-top: var(--s-3); color: var(--text-2); font-weight: 500; font-size: 1.0625rem; }

/* Legal / prose pages */
.prose { max-width: var(--w-prose); }
.prose h2 { font-size: 1.5rem; margin: var(--s-8) 0 var(--s-4); }
.prose h3 { font-size: 1.125rem; margin: var(--s-6) 0 var(--s-3); }
.prose p, .prose li { color: var(--text-2); margin-bottom: var(--s-4); line-height: 1.75; }
.prose ul, .prose ol { padding-left: var(--s-5); margin-bottom: var(--s-4); }
.prose li { margin-bottom: var(--s-2); }
.prose a { color: var(--yellow); text-decoration: underline; text-underline-offset: 3px; }
.prose strong { color: var(--text); }

/* 12 Hero + technical linework -------------------------------------------- */
.hero {
  position: relative;
  padding: var(--s-10) 0 var(--s-9);
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}
/* Measurement grid - a plan sheet, not a starfield. */
.hero::before {
  content: '';
  position: absolute; inset: 0;
  background-image:
    linear-gradient(to right, rgba(167,173,180,.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(167,173,180,.05) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 60% at 30% 40%, #000 0%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 30% 40%, #000 0%, transparent 75%);
  pointer-events: none;
}
.hero > .container { position: relative; z-index: 1; }

.hero__grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: var(--s-8);
  align-items: center;
}
.hero__statement {
  margin-top: var(--s-6);
  font-size: 1.0625rem;
  line-height: 1.75;
  color: var(--text-2);
  max-width: 52ch;
}
.hero__actions { margin-top: var(--s-7); }

/* Company statement band under the hero */
.statement-band { padding: var(--s-8) 0; border-bottom: 1px solid var(--border); }
.statement-band p {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.25rem, 2.4vw, 1.75rem);
  line-height: 1.5;
  color: var(--text);
  max-width: 46ch;
  letter-spacing: -0.01em;
}
.statement-band em { color: var(--yellow); font-style: normal; }

/* 13 Product / interface framing ------------------------------------------ */
/* Restrained window frame for the real RogueFetch screenshot. */
.window {
  border: 1px solid var(--border-strong);
  border-radius: var(--r-lg);
  background: var(--surface);
  box-shadow: var(--shadow-3);
  overflow: hidden;
}
.window__bar {
  display: flex; align-items: center; gap: var(--s-2);
  padding: var(--s-3) var(--s-4);
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
}
.window__dots { display: flex; gap: 6px; }
.window__dots i { width: 8px; height: 8px; border-radius: 50%; background: var(--border-strong); display: block; }
.window__title {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}
.window img { display: block; width: 100%; }

/* Caption identifying real vs representative imagery. Always present. */
.figure { margin: 0; }
.figure figcaption {
  display: flex; flex-wrap: wrap; gap: var(--s-3); align-items: center;
  margin-top: var(--s-4);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

/* Feature diagram - typography and linework instead of fake screens */
.diagram {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}
/* Column count comes from a modifier, never an inline style - an inline
   grid-template-columns outranks the media queries below and the grid then
   refuses to collapse on mobile. */
.diagram--2 { grid-template-columns: repeat(2, 1fr); }
.diagram--3 { grid-template-columns: repeat(3, 1fr); }
.diagram > div { background: var(--surface); padding: var(--s-6); }
.diagram h3 {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--yellow);
  margin-bottom: var(--s-3);
}
.diagram p { font-size: 0.9375rem; margin: 0; }

/* Flow: fragmented sources → one operating picture */
.flow { display: grid; grid-template-columns: 1fr auto 1fr; gap: var(--s-6); align-items: center; }
.flow__nodes { display: flex; flex-direction: column; gap: var(--s-2); }
.flow__node {
  padding: var(--s-3) var(--s-4);
  border: 1px solid var(--border);
  background: var(--surface);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--text-2);
}
.flow__arrow { color: var(--yellow); font-size: 1.5rem; text-align: center; }
.flow__out {
  padding: var(--s-6);
  border: 1px solid var(--border-yellow);
  background: var(--yellow-glow);
}
.flow__out h3 { font-family: var(--font-display); font-size: 1.125rem; color: var(--text); margin-bottom: var(--s-2); }
.flow__out p { font-size: 0.9375rem; margin: 0; }

/* 14 Motion --------------------------------------------------------------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity var(--t-slow), transform var(--t-slow);
}
[data-reveal][data-shown="true"] { opacity: 1; transform: none; }

@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;
  }
  [data-reveal] { opacity: 1; transform: none; }
}

/* 15 Literary (books) treatment ------------------------------------------- */
/* Books get longer measure, warmer neutrals, and quieter chrome. The global
   header and footer stay; only the page body shifts register. */
.literary {
  --text-2: #C3BEB6;
  --measure: 62ch;
}
.literary p { font-size: 1.0625rem; line-height: 1.9; }
.literary .prose-col { max-width: var(--measure); }

.literary h1, .literary h2 { letter-spacing: -0.02em; }

/* Pull-quote / excerpt card */
.excerpt {
  background: var(--surface);
  border-left: 2px solid var(--yellow);
  padding: var(--s-7) var(--s-7) var(--s-6);
  position: relative;
}
.excerpt p {
  font-size: 1.0625rem;
  line-height: 1.95;
  color: var(--text);
  font-weight: 300;
  margin-bottom: var(--s-3);
}
.excerpt p:last-of-type { margin-bottom: 0; }
.excerpt__source {
  margin-top: var(--s-5);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  text-align: right;
}

/* The dedication line - the emotional centre. Give it air. */
.dedication {
  text-align: center;
  padding: var(--s-9) 0;
}
.dedication p {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.5rem, 3.2vw, 2.4rem);
  line-height: 1.45;
  color: var(--text);
  max-width: 24ch;
  margin: 0 auto;
  letter-spacing: -0.01em;
}

/* Reader responses. Borders live on the cards, not on a background showing
   through the gaps � otherwise a half-empty final row renders as a grey slab. */
.responses { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: var(--s-4); }
.response { background: var(--surface); border: 1px solid var(--border); padding: var(--s-6); }
.response p { font-size: 0.9375rem; line-height: 1.85; color: var(--text-2); margin-bottom: var(--s-5); }
.response__who {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--yellow);
}
.response__who span { color: var(--muted); text-transform: none; letter-spacing: 0.02em; }
.response__who span::before { content: ' · '; color: var(--border-strong); }

/* Book cover */
.cover img {
  border: 1px solid var(--border-strong);
  box-shadow: var(--shadow-3);
}

/* Newsletter / Ko-fi embed shells - third-party widgets get a neutral box */
.embed-shell {
  background: var(--surface-2);
  border: 1px solid var(--border);
  padding: var(--s-4);
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 1024px) {
  .site-footer__grid { grid-template-columns: 1fr 1fr; gap: var(--s-6); }
  .hero__grid { gap: var(--s-7); }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  :root { --header-h: 60px; }

  /* Nav collapses into an accessible panel */
  .nav__toggle { display: inline-flex; }
  .nav {
    display: none;
    position: absolute;
    top: var(--header-h); left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--surface);
    border-bottom: 1px solid var(--border-strong);
    box-shadow: var(--shadow-3);
    padding: var(--s-4);
    max-height: calc(100dvh - var(--header-h));
    overflow-y: auto;
  }
  .nav[data-open="true"] { display: flex; }
  .nav__list { flex-direction: column; align-items: stretch; gap: 0; }
  .nav__link, .nav__trigger {
    width: 100%;
    justify-content: space-between;
    min-height: 48px;
    padding: var(--s-3) var(--s-4);
    font-size: 1rem;
    border-bottom: 1px solid var(--border);
  }
  .nav__link[aria-current="page"]::after { left: 0; right: auto; width: 2px; top: 0; bottom: 0; height: auto; }
  .nav__group { position: static; }
  .nav__menu {
    position: static;
    display: none;
    border: 0;
    box-shadow: none;
    background: var(--bg);
    padding: 0;
    min-width: 0;
  }
  .nav__menu[data-open="true"] { display: block; }
  .nav__menu a { padding-left: var(--s-6); border-bottom: 1px solid var(--border); }

  .hero__grid { grid-template-columns: 1fr; }
  .product-row { grid-template-columns: 1fr; gap: var(--s-6); padding: var(--s-8) 0; }
  .product-row--flip .product-row__media { order: 0; }
  .grid--3, .grid--2 { grid-template-columns: 1fr; }
  .diagram--3 { grid-template-columns: repeat(2, 1fr); }
  .flow { grid-template-columns: 1fr; }
  .flow__arrow { transform: rotate(90deg); }
}

@media (max-width: 640px) {
  .diagram--2, .diagram--3 { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  section { padding: var(--s-8) 0; }
  .container { padding: 0 var(--s-5); }
  .hero { padding: var(--s-8) 0 var(--s-8); }
  .form__grid { grid-template-columns: 1fr; gap: 0; }
  .site-footer__grid { grid-template-columns: 1fr; gap: var(--s-6); }
  .site-footer__base { flex-direction: column; align-items: flex-start; }
  .layers > li { grid-template-columns: 1fr; gap: var(--s-2); }
  .responses { grid-template-columns: 1fr; }
  .excerpt { padding: var(--s-5); }
  .actions .btn { width: 100%; }
  .actions .btn--ghost { width: auto; }
  .spec-list li { flex-direction: column; gap: var(--s-1); }
  .spec-list dd, .spec-list .v { text-align: left; }
}

@media (max-width: 380px) {
  .container { padding: 0 var(--s-4); }
  .wordmark { font-size: 0.9375rem; letter-spacing: 0.12em; }
}

/* Print - the memoir is the one thing people may want on paper */
@media print {
  .site-header, .site-footer, .form, .form-notice, .btn { display: none !important; }
  body { background: #fff; color: #000; }
  p, h1, h2, h3 { color: #000 !important; }
}