/* =========================================================================
   Gregory Paul — Self-Build Consultancy
   Design system + components. Prototype build.
   Motif: architect's drawing sheet. Palette from the logo (forest / sage /
   moss) on limewash paper. Type: Fraunces + Hanken Grotesk + IBM Plex Mono.
   ========================================================================= */

/* ---- Tokens ------------------------------------------------------------- */
:root {
  /* Brand colour, derived from the logo */
  --ink:        #16352a;   /* deep forest, near-black — primary text */
  --forest:     #275e3f;   /* brand green — primary actions */
  --forest-700: #1f4d34;
  --sage:       #a9c4a0;   /* light sage — lines, quiet accents */
  --sage-soft:  #cad9c3;
  --moss:       #4f9d57;   /* bright accent — used once, deliberately */

  /* Surfaces */
  --paper:      #f2f4ef;   /* limewash green-grey — page background */
  --paper-2:    #eaeee6;   /* recessed band */
  --card:       #ffffff;
  --ink-panel:  #14302603; /* transparent ink for faint fills */

  /* Text */
  --text:       #1c2b23;
  --text-muted: #5a6b60;
  --text-faint: #8a988e;
  --on-dark:    #eef1ea;
  --on-dark-muted: #adbcae;

  /* Lines */
  --rule:       #d3dacb;   /* hairline construction line */
  --rule-strong:#bcc7b3;

  /* Type */
  --display: "Montserrat", system-ui, sans-serif;
  --body:    "Switzer", system-ui, -apple-system, sans-serif;
  --mono:    "Montserrat", system-ui, sans-serif;   /* labels: letter-spaced sans, not monospace */

  /* Scale (fluid) */
  --step--1: clamp(0.78rem, 0.75rem + 0.15vw, 0.86rem);
  --step-0:  clamp(1rem, 0.96rem + 0.2vw, 1.125rem);
  --step-1:  clamp(1.2rem, 1.1rem + 0.5vw, 1.5rem);
  --step-2:  clamp(1.5rem, 1.3rem + 1vw, 2.1rem);
  --step-3:  clamp(2rem, 1.6rem + 2vw, 3.1rem);
  --step-4:  clamp(2.6rem, 1.9rem + 3.4vw, 4.6rem);
  --step-5:  clamp(3.1rem, 2rem + 5vw, 6.4rem);

  /* Space (8pt rhythm, spacious) */
  --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; --s-11: 176px;

  --container: 1240px;
  --measure: 66ch;
  --radius: 4px;
  --radius-lg: 10px;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --dur: 0.5s;
}

/* ---- Reset -------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  font-family: var(--body);
  font-size: var(--step-0);
  line-height: 1.65;
  color: var(--text);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img, svg, video { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; background: none; border: 0; }
input, select, textarea { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--forest); outline-offset: 3px; border-radius: 2px; }

/* ---- Typography --------------------------------------------------------- */
h1, h2, h3 {
  font-family: var(--display);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.022em;
  color: var(--ink);
  font-optical-sizing: auto;
}
h1 { font-size: clamp(1.85rem, 1.1rem + 2.4vw, 3.2rem); }
h2 { font-size: clamp(1.45rem, 1.05rem + 1.4vw, 2.25rem); }
h3 { font-size: clamp(1.15rem, 1rem + 0.55vw, 1.45rem); }
p { max-width: var(--measure); }

.display   { font-family: var(--display); }
.serif-ital{ font-style: italic; }

.eyebrow {
  font-family: var(--mono);
  font-size: var(--step--1);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--forest);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: var(--s-3);
}
.eyebrow::before {
  content: "";
  width: 26px; height: 1px;
  background: var(--forest);
  opacity: 0.5;
}
.eyebrow--plain::before { display: none; }

.lede {
  font-size: var(--step-1);
  line-height: 1.5;
  color: var(--text-muted);
  font-weight: 400;
  max-width: 46ch;
}
.muted { color: var(--text-muted); }
.mono  { font-family: var(--mono); font-size: var(--step--1); letter-spacing: 0.04em; }

/* phrase list (body font, not mono — mono is only for short labels/figures) */
.notes-list { list-style: none; padding: 0; display: grid; gap: 12px; font-size: 1rem; color: var(--text-muted); max-width: 34ch; }
.notes-list li { display: grid; grid-template-columns: 20px 1fr; align-items: start; }
.notes-list li::before { content: ""; width: 12px; height: 1.5px; background: var(--forest); margin-top: 0.65em; opacity: .7; }

/* ---- Layout primitives -------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: clamp(20px, 5vw, 64px);
}
.section { padding-block: clamp(64px, 10vw, 160px); position: relative; }
.section--tight { padding-block: clamp(48px, 6vw, 88px); }
.section--paper2 { background: var(--paper-2); }
.section--ink { background: var(--ink); color: var(--on-dark); }
.section--ink h1, .section--ink h2, .section--ink h3 { color: var(--on-dark); }

.grid { display: grid; gap: clamp(24px, 4vw, 64px); }
.stack > * + * { margin-top: var(--s-5); }
.divider { height: 1px; background: var(--rule); border: 0; }

/* Drawing-sheet corner registration marks on selected sections */
.sheet { position: relative; }
.sheet::before, .sheet::after {
  content: "";
  position: absolute; width: 14px; height: 14px;
  border: 1px solid var(--rule-strong);
  pointer-events: none;
}
.sheet::before { top: 22px; left: 22px; border-right: 0; border-bottom: 0; }
.sheet::after  { top: 22px; right: 22px; border-left: 0; border-bottom: 0; }

/* ---- Buttons ------------------------------------------------------------ */
.btn {
  display: inline-flex; align-items: center; gap: var(--s-3);
  padding: 15px 26px;
  font-family: var(--body);
  font-weight: 500;
  font-size: var(--step-0);
  letter-spacing: -0.01em;
  border-radius: 100px; white-space: nowrap;
  transition: transform .35s var(--ease), background-color .35s var(--ease), color .35s var(--ease), border-color .35s var(--ease);
  will-change: transform;
}
.btn:active { transform: translateY(1px); }
.btn__arrow { transition: transform .4s var(--ease); }
.btn:hover .btn__arrow { transform: translateX(4px); }

.btn--primary { background: var(--forest); color: #fff; }
.btn--primary:hover { background: var(--forest-700); }
.btn--dark { background: var(--ink); color: var(--on-dark); }
.btn--dark:hover { background: #0e241b; }
.btn--ghost { border: 1px solid var(--rule-strong); color: var(--ink); background: transparent; }
.btn--ghost:hover { border-color: var(--forest); color: var(--forest); }
.btn--onlight-ghost { border: 1px solid var(--on-dark-muted); color: var(--on-dark); }
.btn--onlight-ghost:hover { border-color: var(--on-dark); background: rgba(255,255,255,.06); }
.btn--lg { padding: 18px 32px; font-size: var(--step-1); }

.link-underline {
  display: inline-flex; align-items: center; gap: 8px;
  font-weight: 500; color: var(--forest);
  border-bottom: 1px solid var(--sage);
  padding-bottom: 2px;
  transition: border-color .3s var(--ease), gap .3s var(--ease);
}
.link-underline:hover { border-color: var(--forest); gap: 12px; }

/* ---- Header ------------------------------------------------------------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: color-mix(in srgb, var(--paper) 80%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color .4s var(--ease), background-color .4s var(--ease);
}
.site-header.is-scrolled { border-color: var(--rule); }
.nav {
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--s-5); height: 78px;
}
.brand { display: inline-flex; align-items: center; gap: 14px; }
.brand__mark { width: 42px; height: auto; }
.brand__text { display: flex; flex-direction: column; line-height: 1; }
.brand__name { font-family: var(--display); font-size: 1.24rem; color: var(--ink); font-weight: 600; letter-spacing: -0.01em; }
.brand__sub { font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.24em; text-transform: uppercase; color: var(--text-muted); margin-top: 4px; }

.nav__links { display: flex; align-items: center; gap: clamp(18px, 2vw, 34px); }
.nav__link {
  font-size: 0.98rem; font-weight: 450; color: var(--text);
  position: relative; padding-block: 6px; white-space: nowrap;
}
.nav__link::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 1px; width: 0;
  background: var(--forest); transition: width .35s var(--ease);
}
.nav__link:hover::after, .nav__link[aria-current="page"]::after { width: 100%; }
.nav__actions { display: flex; align-items: center; gap: var(--s-4); }

/* dropdown */
.nav__group { position: relative; }
.nav__menu {
  position: absolute; top: calc(100% + 14px); left: 50%; transform: translateX(-50%) translateY(6px);
  background: var(--card); border: 1px solid var(--rule);
  border-radius: var(--radius-lg); padding: 10px; min-width: 300px;
  box-shadow: 0 24px 48px -24px rgba(20,48,38,.28);
  opacity: 0; visibility: hidden; transition: opacity .28s var(--ease), transform .28s var(--ease);
}
.nav__group:hover .nav__menu, .nav__group:focus-within .nav__menu {
  opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0);
}
.nav__menu a { display: block; padding: 12px 14px; border-radius: var(--radius); transition: background-color .2s; }
.nav__menu a:hover { background: var(--paper-2); }
.nav__menu-title { font-weight: 550; font-size: 0.98rem; color: var(--ink); }
.nav__menu-sub { font-size: 0.82rem; color: var(--text-muted); margin-top: 2px; }
.nav__menu-num { font-family: var(--mono); font-size: 0.7rem; color: var(--forest); margin-right: 8px; }

.nav__toggle { display: none; width: 44px; height: 44px; align-items: center; justify-content: center; }
.nav__toggle span { position: relative; width: 22px; height: 1.5px; background: var(--ink); transition: .3s; }
.nav__toggle span::before, .nav__toggle span::after { content: ""; position: absolute; left: 0; width: 22px; height: 1.5px; background: var(--ink); transition: .3s; }
.nav__toggle span::before { top: -7px; } .nav__toggle span::after { top: 7px; }

/* ---- Hero --------------------------------------------------------------- */
.hero { position: relative; padding-block: clamp(56px, 9vw, 120px) clamp(48px, 7vw, 96px); overflow: hidden; }
.hero__grid-bg {
  position: absolute; inset: 0; pointer-events: none; opacity: .5;
  background-image: linear-gradient(var(--rule) 1px, transparent 1px), linear-gradient(90deg, var(--rule) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, #000 20%, transparent 75%);
          mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, #000 20%, transparent 75%);
}
.hero__inner { position: relative; display: grid; grid-template-columns: 1.15fr 0.85fr; gap: clamp(32px, 5vw, 80px); align-items: center; }
.hero__mark { width: clamp(120px, 16vw, 200px); margin-bottom: var(--s-6); }
.hero h1 { margin-block: var(--s-4) var(--s-6); }
.hero h1 em { font-style: normal; color: var(--forest); font-weight: 600; }
.hero__actions { display: flex; flex-wrap: wrap; gap: var(--s-4); margin-top: var(--s-7); align-items: center; }
.hero__aside {
  border-left: 1px solid var(--rule); padding-left: clamp(24px, 3vw, 44px);
  align-self: stretch; display: flex; flex-direction: column; justify-content: center; gap: var(--s-6);
}
.hero__stat .n { font-family: var(--display); font-size: var(--step-3); color: var(--ink); line-height: 1; }
.hero__stat .l { font-family: var(--mono); font-size: var(--step--1); letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-muted); margin-top: 8px; }

.annot-strip {
  display: flex; flex-wrap: wrap; gap: var(--s-3) var(--s-6);
  font-family: var(--mono); font-size: var(--step--1); letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--text-faint); border-top: 1px solid var(--rule); padding-top: var(--s-5); margin-top: var(--s-8);
}
.annot-strip span { display: inline-flex; align-items: center; gap: 10px; }
.annot-strip span::before { content: ""; width: 5px; height: 5px; background: var(--sage); border-radius: 50%; }

/* ---- Word reveal (hero + headings) ------------------------------------- */
.reveal-mask { display: inline-block; overflow: hidden; padding-bottom: 0.08em; vertical-align: bottom; }
.reveal-mask > span { display: inline-block; transform: translateY(110%); }

/* Scroll fade for blocks (JS adds .in). Content is visible by DEFAULT — the fade
   is applied by JS only when it can guarantee the reveal, so nothing ever stays hidden. */
.fx { opacity: 1; transform: none; transition: opacity .8s var(--ease), transform .8s var(--ease); }
.js-anim .fx { opacity: 0; transform: translateY(24px); }
.js-anim .fx.in { opacity: 1; transform: none; }
.fx-delay-1 { transition-delay: .08s; }
.fx-delay-2 { transition-delay: .16s; }
.fx-delay-3 { transition-delay: .24s; }

/* ---- Section heading block --------------------------------------------- */
.head-block { max-width: 760px; }
.head-block h2 { margin-top: var(--s-4); }
.head-block .lede { margin-top: var(--s-5); }
.head-row { display: flex; justify-content: space-between; align-items: flex-end; gap: var(--s-6); flex-wrap: wrap; }

/* ---- Routes (three "where are you?") ----------------------------------- */
.routes { border-top: 1px solid var(--rule); margin-top: var(--s-8); }
.route {
  display: grid; grid-template-columns: 88px 1fr auto; align-items: center;
  gap: clamp(16px, 3vw, 48px);
  padding-block: clamp(28px, 4vw, 46px);
  border-bottom: 1px solid var(--rule);
  position: relative; transition: padding-left .4s var(--ease);
}
.route::before {
  content: ""; position: absolute; left: -100%; top: 0; bottom: 0; width: 100%;
  background: linear-gradient(90deg, transparent, var(--paper-2));
  opacity: 0; transition: opacity .4s var(--ease); z-index: -1;
}
.route:hover { padding-left: 14px; }
.route:hover::before { opacity: 1; }
.route__num { font-family: var(--mono); font-size: var(--step-0); color: var(--forest); letter-spacing: 0.05em; }
.route__body h3 { font-size: var(--step-2); }
.route__body p { color: var(--text-muted); margin-top: 8px; font-size: var(--step-0); max-width: 54ch; }
.route__go {
  width: 54px; height: 54px; border-radius: 50%; border: 1px solid var(--rule-strong);
  display: grid; place-items: center; color: var(--forest); flex-shrink: 0;
  transition: background-color .4s var(--ease), color .4s var(--ease), border-color .4s var(--ease), transform .4s var(--ease);
}
.route:hover .route__go { background: var(--forest); color: #fff; border-color: var(--forest); transform: rotate(-45deg); }

/* ---- Feature / split ---------------------------------------------------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(28px, 5vw, 88px); align-items: center; }
.split--reverse .split__media { order: 2; }
.media-frame {
  position: relative; border-radius: var(--radius-lg); overflow: hidden;
  background: var(--paper-2); aspect-ratio: 4 / 5;
}
.media-frame img { width: 100%; height: 100%; object-fit: cover; }
.media-frame__tag {
  position: absolute; left: 16px; top: 16px; z-index: 2;
  font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.14em; text-transform: uppercase;
  color: #fff; background: rgba(20,48,38,.7); backdrop-filter: blur(4px);
  padding: 7px 12px; border-radius: 100px;
}
.media-placeholder {
  width: 100%; height: 100%; display: grid; place-items: center;
  background:
    linear-gradient(135deg, var(--sage-soft), var(--paper-2)),
    repeating-linear-gradient(45deg, transparent 0 22px, rgba(39,94,63,.05) 22px 23px);
  background-blend-mode: multiply;
  color: var(--forest); position: relative;
}
.media-placeholder .ph-house { width: 44%; opacity: .7; }
.media-placeholder .ph-label { position: absolute; bottom: 18px; font-family: var(--mono); font-size: .68rem; letter-spacing: .18em; text-transform: uppercase; color: var(--forest-700); opacity: .7; }

/* checklist */
.ticks { list-style: none; padding: 0; display: grid; gap: var(--s-4); }
.ticks li { display: grid; grid-template-columns: 26px 1fr; gap: var(--s-3); align-items: start; color: var(--text); }
.ticks svg { margin-top: 5px; color: var(--forest); }

/* ---- Showcase video (the build, assembling) ---------------------------- */
.showcase { margin: 0; }
.showcase__frame {
  position: relative; border-radius: var(--radius-lg); overflow: hidden;
  background: var(--paper-2); aspect-ratio: 16 / 9;
  box-shadow: 0 44px 84px -46px rgba(20, 48, 38, .38);
}
.showcase__frame::after { /* faint inner hairline, drawing-sheet feel */
  content: ""; position: absolute; inset: 10px; border: 1px solid rgba(255,255,255,.28);
  border-radius: calc(var(--radius-lg) - 4px); pointer-events: none;
}
.showcase__video { width: 100%; height: 100%; object-fit: cover; display: block; }
.showcase__tag {
  position: absolute; left: 18px; bottom: 18px; z-index: 2; color: #fff;
  background: rgba(20, 48, 38, .72); backdrop-filter: blur(4px);
  padding: 8px 14px; border-radius: 100px;
  letter-spacing: .14em; text-transform: uppercase; font-size: .7rem;
}
.showcase__cap {
  display: flex; justify-content: space-between; gap: var(--s-4) var(--s-7);
  margin-top: var(--s-5); padding-top: var(--s-4);
  border-top: 1px solid var(--rule); flex-wrap: wrap; align-items: baseline;
}
.showcase__cap .k { color: var(--forest); letter-spacing: .04em; text-transform: uppercase; }
.showcase__cap .muted { max-width: 46ch; }

/* ---- Calculator promo band --------------------------------------------- */
.calc-band { background: var(--ink); color: var(--on-dark); border-radius: var(--radius-lg); overflow: hidden; position: relative; }
.calc-band__grid { position: absolute; inset: 0; opacity: .12; background-image: linear-gradient(var(--on-dark-muted) 1px, transparent 1px), linear-gradient(90deg, var(--on-dark-muted) 1px, transparent 1px); background-size: 48px 48px; -webkit-mask-image: radial-gradient(circle at 80% 20%, #000, transparent 70%); mask-image: radial-gradient(circle at 80% 20%, #000, transparent 70%); }
.calc-band__inner { position: relative; display: grid; grid-template-columns: 1.1fr 0.9fr; gap: clamp(28px, 4vw, 64px); padding: clamp(32px, 5vw, 72px); align-items: center; }
.calc-band h2 { color: var(--on-dark); }
.calc-band .lede { color: var(--on-dark-muted); }
.calc-preview { background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.12); border-radius: var(--radius-lg); padding: var(--s-6); }
.calc-preview__row { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; padding-block: 13px; border-bottom: 1px dashed rgba(255,255,255,.14); }
.calc-preview__row:last-child { border-bottom: 0; }
.calc-preview__row .k { font-family: var(--mono); font-size: .74rem; letter-spacing: .08em; text-transform: uppercase; color: var(--on-dark-muted); white-space: nowrap; }
.calc-preview__row .v { font-family: var(--display); font-size: var(--step-1); color: #fff; white-space: nowrap; text-align: right; }
.calc-preview__total .v { color: var(--moss); font-size: var(--step-1); font-weight: 600; }

/* ---- Quote -------------------------------------------------------------- */
.pull {
  font-family: var(--display); font-weight: 500; font-size: var(--step-3);
  line-height: 1.18; letter-spacing: -0.02em; color: var(--ink); max-width: 20ch;
}
.pull em { color: var(--forest); font-style: normal; }
.quote-attr { font-family: var(--mono); font-size: var(--step--1); letter-spacing: .1em; text-transform: uppercase; color: var(--text-muted); margin-top: var(--s-6); }

/* ---- CTA final ---------------------------------------------------------- */
.cta-final { text-align: center; }
.cta-final h2 { margin-inline: auto; max-width: 16ch; }
.cta-final .hero__actions { justify-content: center; }

/* ---- Footer ------------------------------------------------------------- */
.site-footer { background: var(--ink); color: var(--on-dark-muted); padding-block: clamp(56px, 7vw, 96px) var(--s-7); }
.footer-titleblock {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: var(--s-7);
  border: 1px solid rgba(255,255,255,.14); border-radius: var(--radius-lg);
  padding: clamp(24px, 3vw, 44px);
}
.footer-titleblock h4 { font-family: var(--mono); font-size: .7rem; letter-spacing: .2em; text-transform: uppercase; color: var(--on-dark-muted); font-weight: 500; margin-bottom: var(--s-5); }
.footer-nav a { display: block; padding: 6px 0; color: var(--on-dark); transition: color .2s; }
.footer-nav a:hover { color: var(--moss); }
.footer-brand__name { font-family: var(--display); font-size: 1.5rem; color: var(--on-dark); }
.footer-brand p { color: var(--on-dark-muted); margin-top: var(--s-4); font-size: .95rem; }
.footer-meta {
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: var(--s-4);
  margin-top: var(--s-7); font-family: var(--mono); font-size: .72rem; letter-spacing: .08em;
  text-transform: uppercase; color: var(--on-dark-muted);
}

/* =========================================================================
   Calculator page
   ========================================================================= */
.calc-layout { display: grid; grid-template-columns: 1fr 400px; gap: clamp(28px, 4vw, 64px); align-items: start; }
.calc-form { display: grid; gap: var(--s-7); }
.field-group { border-top: 1px solid var(--rule); padding-top: var(--s-6); }
.field-group__head { display: flex; align-items: baseline; gap: var(--s-4); margin-bottom: var(--s-5); }
.field-group__num { font-family: var(--mono); font-size: .8rem; color: var(--forest); letter-spacing: .05em; }
.field-group__title { font-family: var(--display); font-size: var(--step-1); color: var(--ink); }
.field-group__hint { color: var(--text-muted); font-size: .92rem; margin-bottom: var(--s-5); max-width: 60ch; }

.label { display: block; font-weight: 500; font-size: .95rem; margin-bottom: var(--s-3); color: var(--ink); }

/* segmented option cards */
.options { display: grid; gap: var(--s-3); grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); }
.option { position: relative; }
.option input { position: absolute; opacity: 0; inset: 0; cursor: pointer; }
.option__box {
  display: block; height: 100%; padding: var(--s-4) var(--s-5);
  border: 1px solid var(--rule-strong); border-radius: var(--radius-lg);
  background: var(--card); transition: border-color .25s var(--ease), background-color .25s var(--ease), transform .25s var(--ease);
}
.option__box:hover { border-color: var(--sage); }
.option input:checked + .option__box { border-color: var(--forest); background: color-mix(in srgb, var(--forest) 6%, var(--card)); box-shadow: inset 0 0 0 1px var(--forest); }
.option input:focus-visible + .option__box { outline: 2px solid var(--forest); outline-offset: 2px; }
.option__box .t { font-weight: 550; color: var(--ink); display: flex; align-items: center; justify-content: space-between; }
.option__box .d { font-size: .82rem; color: var(--text-muted); margin-top: 4px; }
.option__box .p { font-family: var(--mono); font-size: .72rem; color: var(--forest); margin-top: 8px; letter-spacing: .03em; }

/* range + number */
.range-row { display: grid; grid-template-columns: 1fr auto; gap: var(--s-5); align-items: center; }
.range { -webkit-appearance: none; appearance: none; width: 100%; height: 2px; background: var(--rule-strong); border-radius: 2px; }
.range::-webkit-slider-thumb { -webkit-appearance: none; width: 22px; height: 22px; border-radius: 50%; background: var(--forest); border: 3px solid var(--paper); box-shadow: 0 2px 6px rgba(20,48,38,.3); cursor: pointer; }
.range::-moz-range-thumb { width: 20px; height: 20px; border: 3px solid var(--paper); border-radius: 50%; background: var(--forest); cursor: pointer; }
.num-box { display: inline-flex; align-items: baseline; gap: 6px; border: 1px solid var(--rule-strong); border-radius: var(--radius); padding: 8px 12px; background: var(--card); }
.num-box input { width: 68px; border: 0; text-align: right; font-family: var(--mono); font-size: 1rem; background: transparent; }
.num-box input:focus { outline: none; }
.num-box .unit { font-family: var(--mono); font-size: .8rem; color: var(--text-muted); }
.helper { font-size: .82rem; color: var(--text-faint); margin-top: 8px; }

.select {
  width: 100%; padding: 13px 16px; border: 1px solid var(--rule-strong); border-radius: var(--radius-lg);
  background: var(--card); appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' fill='none' stroke='%23275e3f' stroke-width='1.5'%3E%3Cpath d='M3 5l4 4 4-4'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 16px center;
}

/* result panel (sticky) */
.result {
  position: sticky; top: 98px;
  background: var(--ink); color: var(--on-dark); border-radius: var(--radius-lg);
  padding: var(--s-6);
  max-height: calc(100dvh - 116px); overflow-y: auto; /* keep submit reachable on short screens */
  scrollbar-width: thin; scrollbar-color: var(--on-dark-muted) transparent;
}
.result::-webkit-scrollbar { width: 6px; }
.result::-webkit-scrollbar-thumb { background: rgba(255,255,255,.2); border-radius: 6px; }
.result__grid { position: absolute; inset: 0; opacity: .1; background-image: linear-gradient(var(--on-dark-muted) 1px, transparent 1px), linear-gradient(90deg, var(--on-dark-muted) 1px, transparent 1px); background-size: 40px 40px; }
.result__inner { position: relative; }
.result__label { font-family: var(--mono); font-size: .72rem; letter-spacing: .16em; text-transform: uppercase; color: var(--on-dark-muted); }
.result__range { font-family: var(--display); font-weight: 600; font-size: clamp(1.9rem, 1.4rem + 2vw, 2.7rem); color: #fff; line-height: 1.05; margin-top: var(--s-3); letter-spacing: -0.02em; }
.result__range .to { color: var(--on-dark-muted); font-size: .55em; padding-inline: 8px; }
.result__mid { font-family: var(--mono); font-size: .8rem; color: var(--moss); margin-top: var(--s-3); }
.result__break { margin-top: var(--s-6); border-top: 1px solid rgba(255,255,255,.14); }
.result__break .r { display: flex; justify-content: space-between; align-items: baseline; padding-block: 11px; border-bottom: 1px dashed rgba(255,255,255,.12); }
.result__break .k { font-size: .84rem; color: var(--on-dark-muted); }
.result__break .v { font-family: var(--mono); font-size: .92rem; color: var(--on-dark); }
.result__note { font-size: .78rem; color: var(--on-dark-muted); margin-top: var(--s-5); line-height: 1.5; }
.result__cta { margin-top: var(--s-6); display: grid; gap: var(--s-3); }
.btn--moss { background: var(--moss); color: #08150f; font-weight: 600; justify-content: center; }
.btn--moss:hover { background: #5cb265; }

/* lead capture */
.leadcap { border-top: 1px solid rgba(255,255,255,.14); margin-top: var(--s-6); padding-top: var(--s-6); }
.leadcap.is-done { text-align: center; }
.input {
  width: 100%; padding: 13px 16px; border-radius: var(--radius-lg);
  background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.16); color: #fff;
  margin-bottom: var(--s-3);
}
.input::placeholder { color: var(--on-dark-muted); }
.input:focus { outline: none; border-color: var(--moss); }
.leadcap__consent { font-size: .74rem; color: var(--on-dark-muted); margin-top: var(--s-3); line-height: 1.5; }
.leadcap__success { display: none; }
.leadcap.is-done .leadcap__form { display: none; }
.leadcap.is-done .leadcap__success { display: block; }
.check-badge { width: 52px; height: 52px; border-radius: 50%; background: var(--moss); color: #08150f; display: grid; place-items: center; margin: 0 auto var(--s-4); }

/* prototype ribbon */
.proto-flag {
  position: fixed; bottom: 16px; left: 16px; z-index: 200;
  font-family: var(--mono); font-size: .66rem; letter-spacing: .12em; text-transform: uppercase;
  background: var(--ink); color: var(--on-dark-muted); padding: 8px 14px; border-radius: 100px;
  border: 1px solid rgba(255,255,255,.15); box-shadow: 0 8px 24px -8px rgba(0,0,0,.4);
}
.proto-flag b { color: var(--moss); font-weight: 500; }

/* ---- Interior page bits (forms, steps, posts, prose) ------------------- */
.page-hero { padding-block: clamp(48px,7vw,96px) clamp(24px,4vw,48px); }
.page-hero h1 { margin-block: var(--s-4) var(--s-5); }

/* numbered steps */
.steps { border-top: 1px solid var(--rule); margin-top: var(--s-7); }
.step { display: grid; grid-template-columns: 64px 1fr; gap: clamp(16px,3vw,40px); padding-block: clamp(24px,3vw,40px); border-bottom: 1px solid var(--rule); }
.step__n { font-family: var(--display); font-weight: 600; font-size: var(--step-2); color: var(--sage); line-height: 1; }
.step h3 { font-size: var(--step-1); }
.step p { color: var(--text-muted); margin-top: 8px; max-width: 60ch; }

/* light form */
.form { display: grid; gap: var(--s-5); }
.form .row2 { display: grid; gap: var(--s-5); grid-template-columns: 1fr 1fr; }
.field label { display: block; font-weight: 500; font-size: .95rem; margin-bottom: 8px; color: var(--ink); }
.field input, .field textarea { width: 100%; padding: 13px 16px; border: 1px solid var(--rule-strong); border-radius: var(--radius-lg); background: var(--card); color: var(--text); font: inherit; }
.field textarea { min-height: 140px; resize: vertical; }
.field input:focus, .field textarea:focus, .form .select:focus { outline: none; border-color: var(--forest); box-shadow: 0 0 0 3px color-mix(in srgb, var(--forest) 12%, transparent); }
.consent { display: flex; gap: 11px; align-items: flex-start; font-size: .9rem; color: var(--text-muted); }
.consent input { margin-top: 3px; width: 16px; height: 16px; flex-shrink: 0; }
.form-note { font-size: .85rem; color: var(--text-faint); }
.cf-turnstile { min-height: 65px; }

/* prose (legal / article body) */
.prose > * + * { margin-top: var(--s-5); }
.prose h2 { font-size: var(--step-2); margin-top: var(--s-8); }
.prose p, .prose li { color: var(--text); line-height: 1.75; }
.prose ul { padding-left: 1.2em; display: grid; gap: var(--s-2); }
.prose a { color: var(--forest); }

/* article / post cards */
.post-grid { display: grid; gap: clamp(20px,3vw,32px); grid-template-columns: repeat(auto-fill, minmax(280px,1fr)); margin-top: var(--s-7); }
.post-card { display: flex; flex-direction: column; background: var(--card); border: 1px solid var(--rule); border-radius: var(--radius-lg); overflow: hidden; transition: transform .35s var(--ease), box-shadow .35s var(--ease); }
.post-card:hover { transform: translateY(-4px); box-shadow: 0 24px 44px -28px rgba(20,48,38,.3); }
.post-card__media { aspect-ratio: 16/10; background: linear-gradient(135deg, var(--sage-soft), var(--paper-2)); position: relative; display: grid; place-items: center; }
.post-card__media svg { width: 40%; opacity: .5; }
.post-card__cat { position: absolute; top: 12px; left: 12px; font-family: var(--mono); font-size: .66rem; letter-spacing: .1em; text-transform: uppercase; background: var(--paper); color: var(--forest); padding: 5px 11px; border-radius: 100px; }
.post-card__body { padding: var(--s-5); display: grid; gap: 10px; }
.post-card h3 { font-size: var(--step-1); }
.post-card p { font-size: .92rem; color: var(--text-muted); }

/* filter tabs (static, illustrative) */
.tabs { display: flex; flex-wrap: wrap; gap: 8px; margin-top: var(--s-6); }
.tab { padding: 8px 16px; border: 1px solid var(--rule-strong); border-radius: 100px; font-size: .9rem; color: var(--text-muted); }
.tab[aria-selected="true"] { background: var(--forest); color: #fff; border-color: var(--forest); }

/* empty state */
.empty { text-align: center; border: 1px dashed var(--rule-strong); border-radius: var(--radius-lg); padding: clamp(32px,5vw,64px); background: var(--card); }

/* ---- Mobile nav panel --------------------------------------------------- */
.mobile-panel {
  position: fixed; inset: 0; z-index: 90; background: var(--paper);
  transform: translateY(-100%); transition: transform .5s var(--ease);
  padding: 100px clamp(20px,6vw,48px) 40px; display: flex; flex-direction: column; gap: var(--s-4);
  overflow-y: auto;
}
.mobile-panel.is-open { transform: translateY(0); }
.mobile-panel a { font-family: var(--display); font-size: 1.8rem; color: var(--ink); padding: 8px 0; border-bottom: 1px solid var(--rule); }
.mobile-panel a .n { font-family: var(--mono); font-size: .8rem; color: var(--forest); margin-right: 12px; }

/* =========================================================================
   Responsive
   ========================================================================= */
@media (max-width: 980px) {
  .hero__inner { grid-template-columns: 1fr; }
  .hero__aside { border-left: 0; border-top: 1px solid var(--rule); padding-left: 0; padding-top: var(--s-6); flex-direction: row; flex-wrap: wrap; gap: var(--s-7); }
  .split, .split--reverse .split__media { grid-template-columns: 1fr; order: 0; }
  .split__media { order: -1 !important; }
  .calc-band__inner, .calc-layout { grid-template-columns: 1fr; }
  .footer-titleblock { grid-template-columns: 1fr; gap: var(--s-6); }
  .result { position: static; }
}
@media (max-width: 900px) {
  .nav__links, .nav__actions .btn--ghost { display: none; }
  .nav__toggle { display: flex; }
  .route { grid-template-columns: 48px 1fr; }
  .route__go { display: none; }
  .route__num { font-size: .9rem; }
}

/* ---- Reduced motion ----------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
  .fx { opacity: 1; transform: none; }
  .reveal-mask > span { transform: none; }
}