/* ===========================================================
   Ergostic storefront mockup — shared design system
   Palette and type from the Storefront Playbook (Part 6).
   Swap the --* values below to re-skin the whole site.
   =========================================================== */

:root {
  /* Palette */
  --ink:    #111111;  /* primary text, primary buttons        */
  --paper:  #FAFAF7;  /* page background (warm white)          */
  --sand:   #F5F2EC;  /* accent backgrounds, callouts          */
  --moss:   #2A3F2E;  /* accent ink, links, badges (sparingly) */
  --stone:  #555555;  /* muted / secondary text                */
  --rule:   #DDDDDD;  /* hairline borders, dividers            */
  --moss-2: #34503a;  /* moss hover                             */

  --maxw: 1140px;
  --gap: clamp(1rem, 2vw, 1.5rem);
  --section-y: clamp(3.5rem, 7vw, 6rem);

  --f-head: "Inter", system-ui, -apple-system, sans-serif;
  --f-body: "Inter", system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--f-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

h1, h2, h3, h4 {
  font-family: var(--f-head);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.12;
  margin: 0 0 .5em;
}
h1 { font-size: clamp(2.1rem, 5vw, 3.4rem); }
h2 { font-size: clamp(1.6rem, 3.2vw, 2.3rem); }
h3 { font-size: clamp(1.15rem, 2vw, 1.4rem); }
p  { margin: 0 0 1rem; }

.container {
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: clamp(1.1rem, 4vw, 2rem);
}

.muted   { color: var(--stone); }
.moss    { color: var(--moss); }
.center  { text-align: center; }
.eyebrow {
  font-size: .74rem; font-weight: 600; letter-spacing: .16em;
  text-transform: uppercase; color: var(--moss); margin: 0 0 .9rem;
}
.lede { font-size: clamp(1.05rem, 1.6vw, 1.22rem); color: var(--stone); max-width: 60ch; }
.section { padding-block: var(--section-y); }
.section--sand { background: var(--sand); }
.divider { border: 0; border-top: 1px solid var(--rule); margin: 0; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  font-family: var(--f-head); font-weight: 600; font-size: .98rem;
  padding: .85rem 1.5rem; border-radius: 2px;
  border: 1px solid var(--ink); cursor: pointer;
  transition: background .15s ease, color .15s ease, transform .15s ease;
}
.btn--primary { background: var(--ink); color: var(--paper); }
.btn--primary:hover { background: #000; transform: translateY(-1px); }
.btn--ghost { background: transparent; color: var(--ink); }
.btn--ghost:hover { background: var(--ink); color: var(--paper); }
.btn--block { width: 100%; justify-content: center; padding-block: 1.05rem; font-size: 1.05rem; }
.btn--moss { background: var(--moss); border-color: var(--moss); color: #fff; }
.btn--moss:hover { background: var(--moss-2); }

/* ---------- Header ---------- */
.utilitybar {
  background: var(--sand);
  border-bottom: 1px solid var(--rule);
  font-size: .8rem; color: var(--stone);
}
.utilitybar .container {
  display: flex; gap: 1.25rem; align-items: center;
  padding-block: .5rem; flex-wrap: wrap;
}
.utilitybar a { color: var(--ink); font-weight: 500; }
.utilitybar .spacer { margin-left: auto; }

.siteheader {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  backdrop-filter: saturate(120%) blur(8px);
  border-bottom: 1px solid var(--rule);
}
.siteheader .container {
  display: flex; align-items: center; gap: 1.5rem;
  padding-block: .95rem;
}
.wordmark {
  font-family: var(--f-head); font-weight: 700; font-size: 1.45rem;
  letter-spacing: .04em; color: var(--ink);
}
.wordmark .dot { color: var(--moss); }
.mainnav { display: flex; gap: 1.4rem; margin-left: 1rem; }
.mainnav a { font-size: .95rem; color: var(--stone); font-weight: 500; }
.mainnav a:hover { color: var(--ink); }
.header-cta { margin-left: auto; display: flex; align-items: center; gap: .9rem; }

/* ---------- Hero ---------- */
.hero { background: var(--paper); }
.hero .container {
  display: grid; grid-template-columns: 1.05fr 1fr;
  gap: clamp(1.5rem, 4vw, 3.5rem); align-items: center;
  padding-block: clamp(2.5rem, 5vw, 4.5rem);
}
.hero h1 { margin-bottom: .35em; }
.hero .lede { margin-bottom: 1.6rem; }
.hero .cta-row { display: flex; flex-wrap: wrap; gap: .9rem; align-items: center; }
.hero .sub-cta { font-size: .9rem; color: var(--stone); margin: 1.1rem 0 0; }
.hero .sub-cta strong { color: var(--ink); }

/* ---------- Image placeholders ---------- */
.ph {
  position: relative; background: var(--sand);
  border: 1px solid var(--rule); border-radius: 3px;
  display: grid; place-items: center; overflow: hidden;
  color: var(--stone); aspect-ratio: 4 / 3;
}
.ph .ph-label {
  position: relative; z-index: 2;
  font-size: .76rem; letter-spacing: .12em; text-transform: uppercase;
  background: color-mix(in srgb, var(--paper) 70%, transparent);
  padding: .3rem .65rem; border-radius: 2px;
}
.ph .chair-art {
  position: absolute; inset: 0; margin: auto;
  width: 58%; height: 58%; color: var(--rule); opacity: .9; z-index: 1;
}
.ph--tall   { aspect-ratio: 3 / 4; }
.ph--wide   { aspect-ratio: 16 / 9; }
.ph--square { aspect-ratio: 1 / 1; }
.hero .ph { aspect-ratio: 5 / 6; }

/* ---------- Promise strip ---------- */
.promise { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(1rem, 3vw, 2.5rem); }
.promise .item { display: flex; flex-direction: column; gap: .6rem; }
.promise .ico {
  width: 38px; height: 38px; color: var(--moss);
  display: grid; place-items: center;
}
.promise h3 { margin: 0; font-size: 1.18rem; }
.promise p { margin: 0; color: var(--stone); font-size: .98rem; }

/* ---------- Two-col feature (the chair) ---------- */
.feature .container { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(1.5rem, 4vw, 3.5rem); align-items: center; }
.feature--rev .copy { order: 2; }

/* ---------- Refurb steps ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: clamp(1rem, 2.5vw, 1.8rem); }
.step .ph { aspect-ratio: 4 / 3; margin-bottom: 1rem; }
.step .num {
  font-family: var(--f-head); font-weight: 700; color: var(--moss);
  font-size: .85rem; letter-spacing: .12em; margin-bottom: .35rem;
}
.step h3 { font-size: 1.12rem; margin-bottom: .35rem; }
.step p { font-size: .93rem; color: var(--stone); margin: 0; }

/* ---------- Comparison table ---------- */
.cmp-wrap { overflow-x: auto; }
table.cmp { width: 100%; border-collapse: collapse; min-width: 560px; background: var(--paper); }
table.cmp th, table.cmp td { padding: .95rem 1.1rem; text-align: left; border-bottom: 1px solid var(--rule); font-size: .97rem; }
table.cmp thead th { font-family: var(--f-head); background: var(--ink); color: var(--paper); font-weight: 600; }
table.cmp thead th.us { background: var(--moss); }
table.cmp td.us { background: var(--sand); font-weight: 600; }
table.cmp tbody tr:last-child td { font-weight: 700; border-bottom: 0; }
table.cmp td:first-child, table.cmp th:first-child { color: var(--stone); font-weight: 600; }

/* specs table (PDP) */
table.specs { width: 100%; border-collapse: collapse; }
table.specs th, table.specs td { text-align: left; padding: .7rem .2rem; border-bottom: 1px solid var(--rule); font-size: .95rem; vertical-align: top; }
table.specs th { width: 40%; font-weight: 600; color: var(--stone); font-family: var(--f-body); }

/* ---------- FAQ accordions ---------- */
.faq { max-width: 760px; }
.faq details { border-bottom: 1px solid var(--rule); padding: .25rem 0; }
.faq summary {
  cursor: pointer; list-style: none; padding: 1rem 0;
  font-family: var(--f-head); font-weight: 600; font-size: 1.05rem;
  display: flex; justify-content: space-between; gap: 1rem; align-items: center;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--moss); font-weight: 400; font-size: 1.4rem; transition: transform .2s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { color: var(--stone); padding: 0 0 1.1rem; margin: 0; max-width: 65ch; }

/* ---------- Breadcrumb ---------- */
.crumb { font-size: .85rem; color: var(--stone); padding-block: 1.1rem; }
.crumb a:hover { color: var(--ink); }

/* ---------- PDP layout ---------- */
.pdp .container { display: grid; grid-template-columns: 1.15fr 1fr; gap: clamp(1.5rem, 4vw, 3.5rem); align-items: start; }
.gallery .main { margin-bottom: .8rem; }
.gallery .main .ph { aspect-ratio: 1 / 1; }
.gallery .thumbs { display: grid; grid-template-columns: repeat(4, 1fr); gap: .6rem; }
.gallery .thumbs .ph { aspect-ratio: 1 / 1; cursor: pointer; }
.gallery .thumbs .ph .ph-label { font-size: .58rem; padding: .15rem .35rem; }

.buybox { position: sticky; top: 92px; }
.buybox h1 { font-size: clamp(1.7rem, 3vw, 2.2rem); margin-bottom: .3rem; }
.buybox .subline { color: var(--stone); margin-bottom: 1.2rem; }
.price-row { display: flex; align-items: baseline; gap: .8rem; flex-wrap: wrap; margin-bottom: .25rem; }
.price-now { font-family: var(--f-head); font-weight: 700; font-size: 2rem; }
.price-was { color: var(--stone); text-decoration: line-through; font-size: 1.1rem; }
.price-save { color: var(--moss); font-weight: 600; font-size: .95rem; }
.emi { font-size: .9rem; color: var(--stone); margin-bottom: 1.3rem; }
.emi strong { color: var(--ink); }

.pitch { list-style: none; padding: 0; margin: 1.4rem 0; display: grid; gap: .85rem; }
.pitch li { position: relative; padding-left: 1.7rem; font-size: .97rem; }
.pitch li::before { content: ""; position: absolute; left: 0; top: .55em; width: .7rem; height: .7rem; border: 2px solid var(--moss); border-radius: 50%; }

.addon {
  display: flex; align-items: center; gap: .7rem;
  border: 1px solid var(--rule); border-radius: 3px; padding: .8rem 1rem;
  margin-bottom: 1rem; font-size: .92rem; background: var(--paper);
}
.addon input { width: 18px; height: 18px; accent-color: var(--moss); }
.addon .plus { margin-left: auto; font-weight: 600; }

.badges { display: grid; grid-template-columns: repeat(3, 1fr); gap: .6rem; margin-top: 1.3rem; }
.badges .b { text-align: center; border: 1px solid var(--rule); border-radius: 3px; padding: .75rem .4rem; font-size: .76rem; color: var(--stone); }
.badges .b strong { display: block; color: var(--ink); font-size: .82rem; margin-bottom: .15rem; }
.badges .b svg { color: var(--moss); width: 20px; height: 20px; margin: 0 auto .35rem; display: block; }

.checklist { list-style: none; padding: 0; margin: 0; display: grid; gap: .7rem; }
.checklist li { position: relative; padding-left: 1.8rem; color: var(--stone); font-size: .97rem; }
.checklist li::before {
  content: ""; position: absolute; left: 0; top: .25em; width: 1.05rem; height: 1.05rem;
  background: var(--moss);
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='black' d='M9 16.17 4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41z'/%3E%3C/svg%3E") center / contain no-repeat;
          mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='black' d='M9 16.17 4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41z'/%3E%3C/svg%3E") center / contain no-repeat;
}

.block-narrow { max-width: 820px; }
.subhead-rule { display: flex; align-items: center; gap: 1rem; margin-bottom: 1.6rem; }
.subhead-rule::after { content: ""; flex: 1; height: 1px; background: var(--rule); }

.reviews-ph { border: 1px dashed var(--rule); border-radius: 4px; padding: 2rem; text-align: center; color: var(--stone); background: var(--sand); }
.stars { color: var(--moss); letter-spacing: .15em; font-size: 1.1rem; }

/* ---------- Video-call trust callout ---------- */
.vidcall { display: flex; gap: 1.3rem; align-items: flex-start; background: var(--sand); border: 1px solid var(--rule); border-radius: 4px; padding: clamp(1.4rem, 3vw, 2.2rem); }
.vidcall-icon { flex: 0 0 auto; width: 46px; height: 46px; color: var(--moss); }
.vidcall--sm { padding: .85rem 1rem; gap: .7rem; font-size: .9rem; margin-top: 1rem; align-items: center; color: var(--stone); }
.vidcall--sm strong { color: var(--ink); }
.vidcall--sm svg { width: 22px; height: 22px; flex: 0 0 auto; color: var(--moss); }
@media (max-width: 560px) { .vidcall { gap: .9rem; } }

/* ---------- Footer ---------- */
.footer { background: var(--ink); color: #cfcdc7; }
.footer .container { padding-block: clamp(2.5rem, 5vw, 3.5rem); }
.foot-top { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.3fr; gap: 2rem; }
.footer .wordmark { color: var(--paper); display: inline-block; margin-bottom: .8rem; }
.footer h4 { color: var(--paper); font-size: .82rem; letter-spacing: .12em; text-transform: uppercase; margin-bottom: 1rem; font-weight: 600; }
.footer a { color: #cfcdc7; font-size: .92rem; }
.footer a:hover { color: var(--paper); }
.footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: .55rem; }
.footer .addr { font-size: .9rem; line-height: 1.7; color: #a9a7a1; }
.news input {
  width: 100%; padding: .7rem .85rem; border: 1px solid #3a3a37; background: #1b1b19;
  color: var(--paper); border-radius: 2px; margin-bottom: .6rem; font-size: .9rem;
}
.foot-bottom { border-top: 1px solid #2c2c29; margin-top: 2.2rem; padding-top: 1.3rem; display: flex; justify-content: space-between; flex-wrap: wrap; gap: .6rem; font-size: .82rem; color: #8d8b86; }
.trust-strip { background: var(--moss); color: #eef2ec; text-align: center; font-size: .9rem; padding: .8rem 1rem; letter-spacing: .01em; }

/* ---------- Mockup banner ---------- */
.mock-flag {
  background: #1b1b19; color: #c9c7c1; font-size: .76rem; text-align: center;
  padding: .4rem 1rem; letter-spacing: .04em;
}
.mock-flag strong { color: #fff; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .hero .container,
  .feature .container,
  .pdp .container { grid-template-columns: 1fr; }
  .feature--rev .copy { order: 0; }
  .promise { grid-template-columns: 1fr; gap: 1.6rem; }
  .steps { grid-template-columns: 1fr 1fr; }
  .foot-top { grid-template-columns: 1fr 1fr; }
  .buybox { position: static; }
  .mainnav { display: none; }
}
@media (max-width: 560px) {
  body { font-size: 16px; }
  .steps { grid-template-columns: 1fr; }
  .badges { grid-template-columns: 1fr; }
  .foot-top { grid-template-columns: 1fr; }
  .gallery .thumbs { grid-template-columns: repeat(4, 1fr); }
  .header-cta .btn { padding: .7rem 1rem; font-size: .85rem; }
  .utilitybar .hide-sm { display: none; }
}