/* =============================================================================
   ScopeStream — clinical / credible / no-hype
   Refined minimalism: paper-white surfaces, one deep-teal accent, hairline
   rules, editorial serif headings, technical humanist sans, mono labels.
   Mobile-first.
   ========================================================================== */

:root {
  --paper:        #fbfaf7;
  --surface:      #ffffff;
  --surface-sunk: #f4f2ec;

  --ink:          #1c2530;
  --ink-soft:     #45525f;
  --ink-faint:    #6b7682;

  --accent:       #0d5c54;
  --accent-deep:  #093f3a;
  --accent-tint:  #e7f0ee;

  --rule:         #e0ddd4;
  --rule-strong:  #c9c5b9;

  --maxw:    68rem;
  --measure: 42rem;

  /* "Noto Sans Devanagari" is the per-glyph fallback for Hindi text — Latin
     glyphs still use Newsreader / IBM Plex; only Devanagari falls through. */
  --serif: "Newsreader", "Noto Sans Devanagari", Georgia, "Times New Roman", serif;
  --sans:  "IBM Plex Sans", "Noto Sans Devanagari", system-ui, -apple-system, sans-serif;
  --mono:  "IBM Plex Mono", "Noto Sans Devanagari", ui-monospace, "SFMono-Regular", monospace;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.6;
  font-feature-settings: "kern", "liga";
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* --- Debug banner (only shown via ?debug) --------------------------------- */
.config-banner {
  background: #2b2418;
  color: #fdf6e3;
  font-family: var(--mono);
  font-size: 0.78rem;
  padding: 0.6rem 1.25rem;
  text-align: center;
}
.config-banner code { background: rgba(255,255,255,0.12); padding: 0.05em 0.4em; border-radius: 3px; }
.config-banner strong { color: #ffd98a; }

/* --- Masthead ------------------------------------------------------------- */
.masthead {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 1.6rem 1.5rem 0;
}
.wordmark {
  font-family: var(--serif);
  font-size: 1.45rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--ink);
  text-decoration: none;
}
.wordmark span { color: var(--accent); }
.masthead-right { display: flex; align-items: center; gap: 1rem; }
.masthead-tag {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-faint);
  text-align: right;
}
@media (max-width: 34rem) { .masthead-tag { display: none; } }

/* Language toggle */
.lang-toggle {
  display: inline-flex;
  border: 1px solid var(--rule-strong);
  border-radius: 999px;
  overflow: hidden;
  background: var(--surface);
}
.lang-toggle button {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--ink-faint);
  background: transparent;
  border: 0;
  padding: 0.35rem 0.7rem;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}
.lang-toggle button + button { border-left: 1px solid var(--rule); }
.lang-toggle button:hover { color: var(--accent); }
.lang-toggle button.is-active { background: var(--accent); color: #fff; }

/* --- Views ---------------------------------------------------------------- */
.view {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 2.5rem 1.5rem 4rem;
  animation: rise 0.5s cubic-bezier(0.16, 0.84, 0.44, 1) both;
}
.view[hidden] { display: none; }
@keyframes rise { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
@media (prefers-reduced-motion: reduce) { .view { animation: none; } }

/* --- Eyebrow -------------------------------------------------------------- */
.eyebrow {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 1rem;
}

/* --- Hero ----------------------------------------------------------------- */
.hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
  padding-top: 1.5rem;
}
.hero-title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(2rem, 5.5vw, 3.3rem);
  line-height: 1.08;
  letter-spacing: -0.015em;
  margin: 0 0 1.25rem;
  text-wrap: balance;
}
.hero-sub { font-size: 1.15rem; color: var(--ink-soft); max-width: 34rem; margin: 0; }

.hero-figure, .pathway-figure { margin: 0; }
.hero-figure img, .pathway-figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 30px 60px -34px rgba(28, 37, 48, 0.45);
}

@media (min-width: 52rem) {
  .hero { grid-template-columns: 1.05fr 0.95fr; gap: 3.5rem; padding-top: 2.5rem; }
}

/* --- Fork ----------------------------------------------------------------- */
.fork-wrap { margin-top: 3.5rem; }
.fork { display: grid; grid-template-columns: 1fr; gap: 1rem; }
@media (min-width: 40rem) { .fork { grid-template-columns: 1fr 1fr; gap: 1.25rem; } }

.fork-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
  gap: 0.4rem;
  background: var(--surface);
  border: 1px solid var(--rule-strong);
  border-radius: 6px;
  padding: 1.7rem 1.6rem 1.5rem;
  cursor: pointer;
  font: inherit;
  color: inherit;
  transition: border-color 0.18s ease, transform 0.18s ease, box-shadow 0.18s ease;
}
.fork-card:hover, .fork-card:focus-visible {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 14px 30px -18px rgba(13, 92, 84, 0.55);
  outline: none;
}
.fork-card-label {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.fork-card-title { font-family: var(--serif); font-size: 1.55rem; line-height: 1.2; margin-top: 0.15rem; }
.fork-card-desc { color: var(--ink-soft); font-size: 0.98rem; }
.fork-card-cta { margin-top: 0.9rem; color: var(--accent); font-weight: 600; font-size: 0.95rem; }
.fork-card:hover .fork-card-cta span { padding-left: 0.2em; transition: padding 0.18s ease; }

/* --- Pathway -------------------------------------------------------------- */
.back-link {
  background: none; border: none; font: inherit; font-size: 0.9rem;
  color: var(--ink-faint); cursor: pointer; padding: 0.25rem 0; margin-bottom: 1.25rem;
}
.back-link:hover { color: var(--accent); }

.pathway { max-width: var(--maxw); }

.pathway-head {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: center;
  margin-bottom: 2.5rem;
}
@media (min-width: 52rem) {
  .pathway-head { grid-template-columns: 1.1fr 0.9fr; gap: 3rem; }
}

.pathway-title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(1.75rem, 5vw, 2.6rem);
  line-height: 1.12;
  letter-spacing: -0.01em;
  margin: 0 0 1rem;
  text-wrap: balance;
}
.pathway-lede { font-size: 1.1rem; color: var(--ink-soft); margin: 0; max-width: 34rem; }

.benefit-list {
  list-style: none; padding: 0; margin: 0 0 2.75rem;
  display: grid; gap: 1rem; max-width: var(--measure);
}
.benefit-list li { padding-left: 1.25rem; position: relative; color: var(--ink-soft); }
.benefit-list li::before {
  content: ""; position: absolute; left: 0; top: 0.6em;
  width: 0.5rem; height: 0.5rem; background: var(--accent); border-radius: 1px; transform: rotate(45deg);
}
.benefit-list strong { color: var(--ink); font-weight: 600; }

/* --- Forms ---------------------------------------------------------------- */
.ss-form { max-width: var(--measure); display: grid; gap: 1.4rem; }
.form-intro { color: var(--ink-faint); font-size: 0.92rem; margin: 0; }

.field-row { display: grid; grid-template-columns: 1fr; gap: 1.4rem; }
@media (min-width: 34rem) { .field-row { grid-template-columns: 1fr 1fr; } }

.field { display: flex; flex-direction: column; gap: 0.4rem; border: 0; padding: 0; margin: 0; min-width: 0; }
.field-narrow { max-width: 16rem; }
.field-label {
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--ink);
}
.field-label small { font-weight: 400; color: var(--ink-faint); }
.field-label em { color: var(--accent); font-style: normal; }

input[type="text"], input[type="email"], input[type="number"], select, textarea {
  font: inherit;
  font-size: 1rem;
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--rule-strong);
  border-radius: 5px;
  padding: 0.7rem 0.8rem;
  width: 100%;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
textarea { resize: vertical; }
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-tint);
}
input::placeholder, textarea::placeholder { color: #aab2b9; }
select:invalid { color: #aab2b9; }

/* 5-point scale */
.scale-field { gap: 0.55rem; }
.scale { display: grid; grid-template-columns: repeat(5, 1fr); gap: 0.5rem; }
.scale label { position: relative; cursor: pointer; }
.scale input { position: absolute; opacity: 0; inset: 0; cursor: pointer; }
.scale span {
  display: flex; align-items: center; justify-content: center;
  height: 3rem;
  border: 1px solid var(--rule-strong);
  border-radius: 5px;
  font-family: var(--mono);
  font-size: 1rem;
  color: var(--ink-soft);
  background: var(--surface);
  transition: all 0.14s ease;
}
.scale label:hover span { border-color: var(--accent); }
.scale input:checked + span { background: var(--accent); border-color: var(--accent); color: #fff; }
.scale input:focus-visible + span { box-shadow: 0 0 0 3px var(--accent-tint); }
.scale-ends {
  display: flex; justify-content: space-between;
  font-size: 0.75rem; color: var(--ink-faint); font-family: var(--mono);
}

/* checkbox group */
.checks { display: flex; flex-wrap: wrap; gap: 0.6rem; }
.check { position: relative; cursor: pointer; }
.check input { position: absolute; opacity: 0; }
.check span {
  display: inline-block;
  padding: 0.55rem 0.95rem;
  border: 1px solid var(--rule-strong);
  border-radius: 999px;
  font-size: 0.92rem;
  color: var(--ink-soft);
  background: var(--surface);
  transition: all 0.14s ease;
}
.check:hover span { border-color: var(--accent); }
.check input:checked + span { background: var(--accent-tint); border-color: var(--accent); color: var(--accent-deep); font-weight: 600; }
.check input:focus-visible + span { box-shadow: 0 0 0 3px var(--accent-tint); }

/* --- Buttons -------------------------------------------------------------- */
.btn {
  display: inline-block; font: inherit; font-weight: 600; font-size: 1rem; line-height: 1.2;
  padding: 0.85rem 1.6rem; border-radius: 5px; cursor: pointer; text-decoration: none;
  transition: background 0.18s ease, transform 0.12s ease, box-shadow 0.18s ease;
}
.btn:active { transform: translateY(1px); }
.btn[disabled] { opacity: 0.6; cursor: progress; }
.btn-lg { padding: 1rem 2rem; font-size: 1.05rem; }
.btn-solid {
  background: var(--accent); color: #fff; border: 1px solid var(--accent);
  box-shadow: 0 10px 24px -14px rgba(13, 92, 84, 0.8);
}
.btn-solid:hover { background: var(--accent-deep); border-color: var(--accent-deep); }
.btn-ghost { background: transparent; color: var(--accent); border: 1px solid var(--rule-strong); }
.btn-ghost:hover { border-color: var(--accent); }

/* --- Lab primary CTA ------------------------------------------------------ */
.cta-primary {
  background: var(--accent-tint);
  border: 1px solid #cfe2de;
  border-radius: 8px;
  padding: 1.9rem 1.6rem;
  margin-bottom: 2rem;
  max-width: var(--measure);
}
.cta-primary-kicker {
  font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--accent-deep); margin: 0 0 0.9rem;
}
.cta-primary-sub { margin: 0.9rem 0 0; font-size: 0.92rem; color: var(--ink-soft); }

/* --- "or" divider --------------------------------------------------------- */
.form-divider {
  display: flex; align-items: center; gap: 1rem;
  color: var(--ink-faint); font-size: 0.85rem; margin: 0 0 1.75rem; max-width: var(--measure);
}
.form-divider::before, .form-divider::after { content: ""; flex: 1; height: 1px; background: var(--rule); }

/* --- Thank-you ------------------------------------------------------------ */
.thankyou { max-width: var(--measure); border-top: 2px solid var(--accent); padding-top: 2rem; }
.thankyou-optional { font-size: 0.9rem; color: var(--ink-faint); margin: 1.5rem 0 0.75rem; }

/* --- FAQ accordions ------------------------------------------------------- */
.faq {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 2rem 1.5rem 3.5rem;
  border-top: 1px solid var(--rule);
}
.faq-title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(1.5rem, 4vw, 2rem);
  letter-spacing: -0.01em;
  margin: 0 0 1.25rem;
}
.faq-list { max-width: var(--measure); }

.faq-item { border-bottom: 1px solid var(--rule); }
.faq-item summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  padding: 1.05rem 0;
  font-weight: 600;
  font-size: 1.02rem;
  color: var(--ink);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  font-family: var(--mono);
  font-size: 1.4rem;
  line-height: 1;
  color: var(--accent);
  flex: none;
  transition: transform 0.2s ease;
}
.faq-item[open] summary::after { content: "–"; }
.faq-item summary:hover { color: var(--accent); }
.faq-item p {
  margin: 0 0 1.15rem;
  color: var(--ink-soft);
  font-size: 0.98rem;
  max-width: 62ch;
}

/* --- Footer --------------------------------------------------------------- */
.footer {
  max-width: var(--maxw); margin: 0 auto;
  padding: 2.5rem 1.5rem 3.5rem; border-top: 1px solid var(--rule);
  color: var(--ink-faint); font-size: 0.88rem;
}
.footer p { margin: 0.3rem 0; }
.footer-brand { font-family: var(--serif); font-size: 1.2rem; color: var(--ink); }
.footer-brand span { color: var(--accent); }
.footer-fine { font-size: 0.78rem; }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }