/* ============================================================
   readmecraft — markdown workshop / letterpress.
   Warm paper + ink-black + oxblood. Light-first, dark scheme.
   ============================================================ */

:root {
  /* --- light (default): warm paper + ink --- */
  --paper:    #F4EEE2;   /* page */
  --paper2:   #FBF7EE;   /* raised card */
  --ink:      #201B15;   /* body text on paper — ~13.5:1 */
  --ink-soft: #5C5347;   /* muted text on paper — ~5.6:1 */
  --rule:     #D8CEBC;   /* hairlines */
  --rule2:    #C4B8A2;   /* stronger borders */
  --oxblood:  #8A2A2A;   /* the one ink accent — ~6.4:1 on paper */
  --oxblood-deep: #6E2020;
  --oxblood-dim:  rgba(138, 42, 42, 0.10);
  --field:    #FFFFFF;
  --code-bg:  #EFE7D7;   /* inline code chip */
  --sel:      rgba(138, 42, 42, 0.16);

  --sans: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;

  --radius: 12px;
  --radius-sm: 8px;
  --wrap: 1200px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --shadow: 0 14px 34px -22px rgba(58, 42, 20, 0.55);
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper:    #181410;   /* near-black warm ink */
    --paper2:   #211B15;
    --ink:      #F1E9DB;   /* ~14:1 on paper */
    --ink-soft: #B7AC99;   /* ~7.4:1 on paper */
    --rule:     #33291F;
    --rule2:    #4A3C2C;
    --oxblood:  #E8927E;   /* lightened terracotta for dark — ~7.3:1 */
    --oxblood-deep: #F0A793;
    --oxblood-dim:  rgba(232, 146, 126, 0.14);
    --field:    #120E0A;
    --code-bg:  #2A2119;
    --sel:      rgba(232, 146, 126, 0.22);
    --shadow: 0 18px 44px -24px rgba(0, 0, 0, 0.8);
  }
}

* { 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: 16px;
  line-height: 1.55;
  letter-spacing: -0.003em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* faint letterpress grain: repeating horizontal "ruling" behind the page */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(1100px 600px at 88% -6%, var(--oxblood-dim), transparent 62%);
}

::selection { background: var(--sel); }

h1, h2, h3, h4 { margin: 0; font-weight: 700; letter-spacing: -0.02em; line-height: 1.12; }
p { margin: 0; }
em { font-style: normal; color: var(--ink); }

.hash {
  font-family: var(--mono);
  color: var(--oxblood);
  font-weight: 700;
}

.skip-link {
  position: absolute; left: 12px; top: -60px;
  background: var(--oxblood); color: #FFF3EF;
  padding: 10px 16px; border-radius: 10px; font-weight: 700;
  z-index: 50; transition: top 0.18s var(--ease); text-decoration: none;
}
.skip-link:focus { top: 12px; }
@media (prefers-color-scheme: dark) {
  /* --oxblood is a light terracotta in dark mode; keep the skip-link
     legible by darkening its text (matches the button treatment). */
  .skip-link { color: #2A0F0B; }
}

/* shared focus ring */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible,
[tabindex]:focus-visible,
.seg:focus-within {
  outline: 3px solid var(--oxblood);
  outline-offset: 2px;
  border-radius: 6px;
}

.eyebrow {
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--ink-soft);
  font-weight: 700;
  display: inline-flex; align-items: center; gap: 8px;
}

/* ============================================================
   HERO — heading rule motif
   ============================================================ */
.hero {
  position: relative;
  border-bottom: 1px solid var(--rule);
  background:
    linear-gradient(180deg, var(--paper2) 0%, var(--paper) 100%);
}
.hero__rule {
  position: absolute;
  left: 0; right: 0; top: 0; height: 6px;
  background: linear-gradient(90deg, var(--oxblood) 0 34%, var(--rule2) 34% 100%);
}
.hero__inner {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: clamp(40px, 6vw, 76px) clamp(20px, 5vw, 48px) clamp(34px, 4vw, 52px);
}
.hero__title {
  font-size: clamp(2.1rem, 5.6vw, 3.6rem);
  margin: 16px 0 0;
  max-width: 18ch;
}
.hero__accent { color: var(--oxblood); }
.hero__lede {
  margin-top: 18px;
  max-width: 62ch;
  color: var(--ink-soft);
  font-size: clamp(1rem, 1.3vw, 1.12rem);
}
.hero__lede em { color: var(--oxblood); font-weight: 600; }
.hero__cta {
  margin-top: 26px;
  display: flex; align-items: center; gap: 18px; flex-wrap: wrap;
}
.hero__note { font-size: 0.84rem; color: var(--ink-soft); }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  font-family: var(--sans);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: -0.01em;
  border-radius: 10px;
  cursor: pointer;
  border: 1px solid transparent;
  padding: 12px 22px;
  text-decoration: none;
  display: inline-flex; align-items: center; gap: 8px;
  transition: transform 0.12s var(--ease), background 0.16s var(--ease), border-color 0.16s var(--ease), color 0.16s var(--ease);
}
.btn:active { transform: translateY(1px); }
.btn--primary {
  background: var(--oxblood);
  color: #FFF3EF;
  box-shadow: 0 12px 26px -14px rgba(138, 42, 42, 0.6);
}
.btn--primary:hover { background: var(--oxblood-deep); }
@media (prefers-color-scheme: dark) {
  .btn--primary { color: #2A0F0B; box-shadow: none; }
}
.btn--ghost {
  background: var(--paper2);
  color: var(--ink);
  border-color: var(--rule2);
}
.btn--ghost:hover { border-color: var(--oxblood); color: var(--oxblood); }
.btn--ghost.is-done { border-color: var(--oxblood); color: var(--oxblood); }
.btn--quiet {
  background: transparent;
  color: var(--ink-soft);
  border-color: var(--rule2);
  padding: 9px 16px;
  font-size: 0.86rem;
}
.btn--quiet:hover { color: var(--oxblood); border-color: var(--oxblood); }

/* ============================================================
   TOOLBAR (sticky)
   ============================================================ */
.toolbar {
  position: sticky;
  top: 0;
  z-index: 20;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--rule);
}
.toolbar__inner {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 12px clamp(20px, 5vw, 48px);
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px 24px; flex-wrap: wrap;
}
.toolbar__presets { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.toolbar__label {
  font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.14em;
  font-weight: 700; color: var(--ink-soft);
}
.toolbar__actions { display: flex; gap: 10px; flex-wrap: wrap; }

/* segmented control */
.segmented {
  display: inline-flex; gap: 3px;
  background: var(--paper2);
  border: 1px solid var(--rule2);
  border-radius: 10px;
  padding: 3px;
  flex-wrap: wrap;
}
.seg { position: relative; }
.seg input { position: absolute; opacity: 0; inset: 0; cursor: pointer; margin: 0; }
.seg span {
  display: block; text-align: center;
  padding: 7px 14px;
  border-radius: 7px;
  font-weight: 600; font-size: 0.88rem;
  color: var(--ink-soft);
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.16s var(--ease), color 0.16s var(--ease);
}
.seg input:hover + span { color: var(--ink); }
.seg input:checked + span { background: var(--oxblood); color: #FFF3EF; }
@media (prefers-color-scheme: dark) {
  .seg input:checked + span { color: #2A0F0B; }
}

/* ============================================================
   WORKSPACE — two columns
   ============================================================ */
.workspace {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: clamp(22px, 3vw, 34px) clamp(20px, 5vw, 48px) clamp(48px, 7vw, 80px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.02fr);
  gap: 26px;
  align-items: start;
}

/* ============================================================
   INTERVIEW form
   ============================================================ */
.interview { display: flex; flex-direction: column; gap: 18px; min-width: 0; }

.panel {
  border: 1px solid var(--rule2);
  background: var(--paper2);
  border-radius: var(--radius);
  padding: 20px 20px 22px;
  margin: 0;
  min-width: 0;
  box-shadow: var(--shadow);
}
.panel__legend {
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ink);
  padding: 0 8px 0 0;
  display: inline-flex; align-items: baseline; gap: 8px;
}
.panel__hint {
  margin-top: 4px;
  font-size: 0.82rem; color: var(--ink-soft); line-height: 1.45;
}

.field { display: flex; flex-direction: column; gap: 7px; }
.field + .field { margin-top: 16px; }
.fields { display: flex; flex-direction: column; gap: 16px; }
.fields:empty::after {
  content: "This section has no free-text fields — its content comes from the basics above.";
  color: var(--ink-soft); font-size: 0.85rem;
}
.field label,
.fields > .field > label {
  font-size: 0.82rem; font-weight: 700; color: var(--ink);
  letter-spacing: -0.005em;
}
.field__sub { color: var(--ink-soft); font-weight: 500; }

input[type="text"],
textarea,
select {
  font-family: var(--sans);
  font-size: 0.95rem;
  color: var(--ink);
  background: var(--field);
  border: 1px solid var(--rule2);
  border-radius: var(--radius-sm);
  padding: 11px 13px;
  width: 100%;
  transition: border-color 0.16s var(--ease), box-shadow 0.16s var(--ease);
}
input[type="text"]::placeholder,
textarea::placeholder { color: var(--ink-soft); opacity: 0.85; }
input[type="text"]:hover,
textarea:hover,
select:hover { border-color: var(--oxblood); }
input[type="text"]:focus,
textarea:focus { border-color: var(--oxblood); }
textarea { resize: vertical; line-height: 1.5; min-height: 66px; }
.input--short { max-width: 130px; }
.mono-input { font-family: var(--mono); font-size: 0.9rem; }
.row { display: flex; gap: 10px; flex-wrap: wrap; }
.row select { flex: 0 0 auto; width: auto; min-width: 150px; }
.row input { flex: 1 1 160px; }
select {
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--ink-soft) 50%), linear-gradient(135deg, var(--ink-soft) 50%, transparent 50%);
  background-position: right 14px center, right 9px center;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
  padding-right: 30px;
}

/* section toggles + reorder */
.sections { list-style: none; margin: 12px 0 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.section-row {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 10px;
  border: 1px solid var(--rule);
  border-radius: var(--radius-sm);
  background: var(--field);
}
.section-row.is-fixed { opacity: 0.9; }
.section-row__toggle { position: relative; display: inline-flex; flex: none; }
.section-row__toggle input { position: absolute; opacity: 0; inset: 0; cursor: pointer; margin: 0; }
.section-row__toggle span {
  width: 40px; height: 23px; border-radius: 999px;
  background: var(--paper); border: 1px solid var(--rule2);
  position: relative; cursor: pointer;
  transition: background 0.18s var(--ease), border-color 0.18s var(--ease);
}
.section-row__toggle span::after {
  content: ""; position: absolute; left: 3px; top: 2px;
  width: 17px; height: 17px; border-radius: 50%;
  background: var(--ink-soft);
  transition: transform 0.18s var(--ease), background 0.18s var(--ease);
}
.section-row__toggle input:checked + span { background: var(--oxblood-dim); border-color: var(--oxblood); }
.section-row__toggle input:checked + span::after { transform: translateX(17px); background: var(--oxblood); }
.section-row__toggle input:disabled + span { opacity: 0.5; cursor: not-allowed; }

.section-row__name {
  flex: 1; font-size: 0.9rem; font-weight: 600; color: var(--ink);
  min-width: 0;
}
.section-row.is-off .section-row__name { color: var(--ink-soft); }
.section-row__req {
  font-size: 0.64rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--oxblood); background: var(--oxblood-dim);
  border: 1px solid var(--oxblood); border-radius: 999px;
  padding: 2px 7px; white-space: nowrap;
}
.section-row__moves { display: flex; gap: 3px; flex: none; }
.movebtn {
  width: 28px; height: 28px; border-radius: 6px;
  border: 1px solid var(--rule2); background: var(--paper2);
  color: var(--ink); cursor: pointer;
  display: grid; place-items: center;
  font-size: 0.8rem; line-height: 1;
  transition: border-color 0.14s var(--ease), color 0.14s var(--ease);
}
.movebtn:hover:not(:disabled) { border-color: var(--oxblood); color: var(--oxblood); }
.movebtn:disabled { opacity: 0.32; cursor: not-allowed; }
.movebtn svg { width: 13px; height: 13px; stroke: currentColor; fill: none; stroke-width: 2.2; }

.interview__reset {
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
}
.interview__note { font-size: 0.8rem; color: var(--ink-soft); }

/* ============================================================
   PREVIEW column
   ============================================================ */
.preview {
  position: sticky;
  top: 76px;
  border: 1px solid var(--rule2);
  border-radius: var(--radius);
  background: var(--paper2);
  box-shadow: var(--shadow);
  overflow: hidden;
  display: flex; flex-direction: column;
  max-height: calc(100vh - 96px);
  min-width: 0;
}
.preview__bar {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px;
  padding: 8px 12px;
  border-bottom: 1px solid var(--rule);
  background: var(--paper);
}
.preview__tabs { display: flex; gap: 3px; background: var(--paper2); border: 1px solid var(--rule2); border-radius: 9px; padding: 3px; }
.tab {
  border: none; background: transparent;
  font-family: var(--sans); font-weight: 600; font-size: 0.84rem;
  color: var(--ink-soft); cursor: pointer;
  padding: 6px 13px; border-radius: 6px;
  transition: background 0.14s var(--ease), color 0.14s var(--ease);
}
.tab:hover { color: var(--ink); }
.tab.is-active { background: var(--oxblood); color: #FFF3EF; }
@media (prefers-color-scheme: dark) { .tab.is-active { color: #2A0F0B; } }
.preview__file {
  font-family: var(--mono); font-size: 0.8rem; color: var(--ink-soft);
  display: inline-flex; align-items: center;
}
.preview__scroll { overflow: auto; flex: 1; }
.preview__status {
  padding: 8px 14px; font-size: 0.78rem; color: var(--ink-soft);
  border-top: 1px solid var(--rule); min-height: 1em;
}

/* --- rendered markdown --- */
.md { padding: 26px clamp(20px, 3vw, 34px) 40px; max-width: 76ch; }
.md > *:first-child { margin-top: 0; }
.md h1 {
  font-size: 1.7rem; padding-bottom: 0.3em; margin: 0 0 14px;
  border-bottom: 2px solid var(--oxblood);
}
.md h2 {
  font-size: 1.28rem; margin: 30px 0 12px; padding-bottom: 0.28em;
  border-bottom: 1px solid var(--rule2);
}
.md h3 { font-size: 1.05rem; margin: 22px 0 8px; }
.md p { margin: 0 0 12px; color: var(--ink); }
.md a { color: var(--oxblood); text-decoration: underline; text-underline-offset: 2px; }
.md a:hover { text-decoration-thickness: 2px; }
.md strong { font-weight: 700; }
.md em { font-style: italic; color: var(--ink); }
.md ul, .md ol { margin: 0 0 14px; padding-left: 1.4em; }
.md li { margin: 3px 0; }
.md code {
  font-family: var(--mono); font-size: 0.86em;
  background: var(--code-bg); color: var(--ink);
  padding: 1px 6px; border-radius: 5px;
  border: 1px solid var(--rule);
}
.md pre {
  background: var(--code-bg);
  border: 1px solid var(--rule2);
  border-left: 3px solid var(--oxblood);
  border-radius: var(--radius-sm);
  padding: 14px 16px; margin: 0 0 16px;
  overflow-x: auto;
}
.md pre code { background: none; border: none; padding: 0; font-size: 0.84rem; line-height: 1.5; color: var(--ink); }
.md blockquote {
  margin: 0 0 14px; padding: 2px 16px;
  border-left: 3px solid var(--rule2);
  color: var(--ink-soft);
}
.md hr { border: none; border-top: 1px solid var(--rule2); margin: 24px 0; }
.md .badge-row { display: flex; flex-wrap: wrap; gap: 6px; margin: 0 0 14px; }
.md .badge {
  font-family: var(--mono); font-size: 0.72rem; font-weight: 600;
  color: var(--oxblood);
  background: var(--oxblood-dim);
  border: 1px solid var(--oxblood);
  border-radius: 5px; padding: 2px 8px;
}
.md .md-empty { color: var(--ink-soft); font-style: italic; }

/* --- markdown source view (hand-tokenized highlight) --- */
.src {
  margin: 0; padding: 24px clamp(18px, 3vw, 30px) 36px;
  font-family: var(--mono); font-size: 0.84rem; line-height: 1.6;
  color: var(--ink);
  white-space: pre-wrap; word-break: break-word;
}
.src .t-h { color: var(--oxblood); font-weight: 700; }
.src .t-fence { color: var(--ink-soft); }
.src .t-bullet { color: var(--oxblood); }
.src .t-code { background: var(--code-bg); border-radius: 4px; padding: 0 3px; }
.src .t-link { color: var(--oxblood); }
.src .t-em { color: var(--ink-soft); font-style: italic; }

/* ============================================================
   FOOTER
   ============================================================ */
.foot {
  border-top: 1px solid var(--rule);
  background: var(--paper2);
}
.foot__inner {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 28px clamp(20px, 5vw, 48px) 40px;
}
.foot__disclaimer {
  font-size: 0.86rem; color: var(--ink-soft); max-width: 80ch; line-height: 1.6;
}
.foot__disclaimer strong { color: var(--ink); }
.foot__disclaimer em { color: var(--oxblood); font-weight: 600; }
.foot__meta {
  margin-top: 16px;
  display: flex; flex-wrap: wrap; gap: 8px 10px;
  font-size: 0.78rem; color: var(--ink-soft);
}
.foot__dot { color: var(--rule2); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 940px) {
  .workspace { grid-template-columns: 1fr; }
  .preview {
    position: static;
    max-height: 70vh;
    order: -1;
  }
}
@media (max-width: 560px) {
  .toolbar__inner { justify-content: flex-start; }
  .toolbar__actions { width: 100%; }
  .toolbar__actions .btn { flex: 1; justify-content: center; }
  .row select, .row input { width: 100%; flex: 1 1 100%; }
}

/* ============================================================
   REDUCED MOTION
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}