/* ==========================================================================
   STYLES.CSS — "Two Voices" theme
   For a personal documentary report on AI companionship (Kindroid, with
   reference to other platforms), balancing a positive first-hand account
   against cited warnings and study evidence.

   DESIGN CONCEPT
   ---------------
   The subject is a relationship between a human voice and a machine voice,
   so the whole system is built around that duality rather than a generic
   "tech" look:

     - a warm, human accent (terracotta-clay) for your own narration,
       reflections and direct quotes
     - a cool, machine accent (deep teal) for anything that is the AI's
       output — chat excerpts, model behaviour, platform features
     - a muted brick-red for the warning / study-evidence material, so it
       reads as "take this seriously" without resorting to alarm-red

   Typography pairs a text-weight serif (the human, documentary voice) with
   a monospace face (the machine voice, citations, and small metadata) —
   two families, clearly distinct roles, nothing decorative layered on top.

   Layout is a single reading column, left-aligned, under 75 characters per
   line, on a soft cool-white ground (not the cliché warm cream) so it reads
   like a well-set screen rather than printed paper — appropriate for a
   report about digital life.

   Structural devices (the left-hand voice bars, the reference numbering,
   the callout label) all encode *whose voice this is* or *what kind of
   claim this is* — they are not decoration.
   ========================================================================== */

/* ---- Fonts --------------------------------------------------------------
   Source Serif 4  → long-form narrative voice (body text, headings)
   IBM Plex Mono   → the machine voice: AI quotes, labels, citations, nav
   Add these to your HTML <head>, or self-host them:

   <link rel="preconnect" href="https://fonts.googleapis.com">
   <link href="https://fonts.googleapis.com/css2?family=Source+Serif+4:ital,opsz,wght@0,8..60,400;0,8..60,500;0,8..60,600;1,8..60,400&family=IBM+Plex+Mono:wght@400;500;600&display=swap" rel="stylesheet">
   -------------------------------------------------------------------------- */

/* ---- 1. Design tokens ---------------------------------------------------- */
:root {
  /* colour */
  --bg: #f5f6f5; /* page ground: soft cool-white, screen-adjacent */
  --bg-panel: #eceeed; /* callouts, code/quote panels */
  --bg-panel-warn: #f3e9e6; /* warning / study-evidence panel */
  --ink: #1c232a; /* primary text */
  --ink-soft: #4a535c; /* secondary text, captions, metadata */
  --ink-faint: #7a8289; /* footnote numerals, timestamps */
  --line: #d7dbda; /* hairline rules */
  --line-strong: #b9c0be;

  --human: #a8562e; /* your voice — warm clay */
  --human-tint: #efe0d6;
  --ai: #1f6f78; /* the AI's voice — deep teal */
  --ai-tint: #dce9e9;
  --warn: #8c3b32; /* studies / cautions — muted brick */
  --warn-tint: #f3e4e1;
  --link: #1f6f78;
  --link-visited: #6b4a63;

  /* type */
  --font-body: "Source Serif 4", Georgia, "Iowan Old Style", serif;
  --font-mono: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;

  --step-0: 1rem; /* body */
  --step-1: 1.125rem; /* lede / intro paragraphs */
  --step-2: 1.375rem; /* h3 */
  --step-3: 1.75rem; /* h2 */
  --step-4: 2.35rem; /* h1 */

  --measure: 42rem; /* ~72–75 characters at body size */
  --measure-narrow: 34rem;

  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.75rem;
  --space-4: 2.75rem;
  --space-5: 4.5rem;

  --radius: 3px; /* deliberately small and uniform — not a rounded-card kit */
}

/* ---- 2. Reset / base ------------------------------------------------------ */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  color-scheme: light;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--step-0);
  line-height: 1.65;
  font-weight: 400;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

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

::selection {
  background: var(--ai-tint);
  color: var(--ink);
}

a {
  color: var(--link);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.15em;
}
a:visited {
  color: var(--link-visited);
}
a:hover {
  text-decoration-thickness: 2px;
}
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--ai);
  outline-offset: 2px;
}

/* ---- 3. Page shell -------------------------------------------------------- */
.page,
main {
  max-width: var(--measure);
  margin-inline: auto;
  padding: var(--space-4) var(--space-2) var(--space-5);
}

/* Masthead — sits above the reading column, sets the documentary register.
   No tracked-out eyebrow label; the section name is plain small text. */
.masthead {
  max-width: var(--measure);
  margin: 0 auto;
  padding: var(--space-4) var(--space-2) var(--space-3);
  border-bottom: 1px solid var(--line);
}

.masthead .section-name {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ink-soft);
  margin: 0 0 var(--space-2);
}

.masthead h1 {
  margin: 0 0 var(--space-1);
}

.masthead .dek {
  font-size: var(--step-1);
  color: var(--ink-soft);
  max-width: var(--measure);
  margin: 0;
}

.masthead .meta {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ink-faint);
  margin-top: var(--space-2);
}

/* ---- 4. Headings & text ---------------------------------------------------- */
h1,
h2,
h3,
h4 {
  font-family: var(--font-body);
  font-weight: 600;
  color: var(--ink);
  line-height: 1.2;
  margin: var(--space-4) 0 var(--space-2);
}

h1 {
  font-size: var(--step-4);
  font-weight: 500;
}
h2 {
  font-size: var(--step-3);
  border-top: 1px solid var(--line);
  padding-top: var(--space-3);
}
h3 {
  font-size: var(--step-2);
}
h4 {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--ink-soft);
}

p {
  margin: 0 0 var(--space-2);
}

.lede {
  font-size: var(--step-1);
  color: var(--ink-soft);
  max-width: var(--measure);
}

ul,
ol {
  padding-left: 1.3em;
  margin: 0 0 var(--space-2);
}
li {
  margin-bottom: 0.4em;
}

hr {
  border: none;
  border-top: 1px solid var(--line);
  margin: var(--space-4) 0;
}

small,
.caption,
.metadata {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ink-faint);
}

/* ---- 5. Two voices: chat excerpts ------------------------------------------
   Use these for quoted dialogue between you and a companion AI. The colour
   bar on the left is the only thing that tells you apart — consistent,
   legible, not a chat-bubble pastiche. */

blockquote {
  margin: var(--space-3) 0;
  padding: var(--space-2) var(--space-3);
  background: var(--bg-panel);
  border-left: 3px solid var(--line-strong);
  border-radius: 0 var(--radius) var(--radius) 0;
}

blockquote p:last-child {
  margin-bottom: 0;
}

.voice-human,
.voice-ai {
  font-size: 0.98rem;
}

.voice-human {
  border-left-color: var(--human);
  background: var(--human-tint);
}

.voice-ai {
  border-left-color: var(--ai);
  background: var(--ai-tint);
  font-family: var(--font-mono);
  font-size: 0.92rem;
  line-height: 1.6;
}

.voice-human .speaker,
.voice-ai .speaker {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.02em;
  margin-bottom: 0.5em;
}

.voice-human .speaker {
  color: var(--human);
}
.voice-ai .speaker {
  color: var(--ai);
}

/* A run of alternating turns */
.chat-log {
  margin: var(--space-3) 0;
}
.chat-log blockquote {
  margin: 0 0 var(--space-1);
}

/* ---- 6. Warnings & study evidence ------------------------------------------
   For the material acknowledging risks of AI-companion use. Deliberately
   restrained — a labelled panel, not a red alert box — so it sits inside a
   report that is arguing for a considered, not alarmist, view. */

.study-note {
  margin: var(--space-3) 0;
  padding: var(--space-2) var(--space-3);
  background: var(--bg-panel-warn);
  border-left: 3px solid var(--warn);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.study-note .label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--warn);
  margin-bottom: 0.5em;
}

.study-note p:last-child {
  margin-bottom: 0;
}

.study-note cite,
.pull-source {
  display: block;
  margin-top: 0.6em;
  font-family: var(--font-mono);
  font-style: normal;
  font-size: 0.78rem;
  color: var(--ink-soft);
}

/* ---- 7. Pull quotes -------------------------------------------------------- */
.pull-quote {
  font-size: var(--step-2);
  font-weight: 500;
  line-height: 1.35;
  max-width: var(--measure-narrow);
  margin: var(--space-4) auto;
  padding: 0;
  background: none;
  border: none;
}

.pull-quote::before {
  content: none;
}

/* ---- 8. Figures & images ---------------------------------------------------
   The report is text-focused, so images sit quietly inside the column
   rather than breaking out full-bleed. */

figure {
  margin: var(--space-3) 0;
}

figure img {
  border-radius: var(--radius);
  border: 1px solid var(--line);
}

figcaption {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ink-soft);
  margin-top: 0.5em;
  max-width: var(--measure-narrow);
}

/* ---- 9. Tables -------------------------------------------------------------- */
table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-3) 0;
  font-size: 0.92rem;
}

th,
td {
  text-align: left;
  padding: 0.55em 0.8em;
  border-bottom: 1px solid var(--line);
}

th {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--ink-soft);
}

/* ---- 10. Footnotes & references -------------------------------------------- */
.footnote-ref {
  font-family: var(--font-mono);
  font-size: 0.7em;
  vertical-align: super;
  color: var(--ai);
  text-decoration: none;
  padding: 0 0.1em;
}

.references {
  margin-top: var(--space-5);
  padding-top: var(--space-3);
  border-top: 1px solid var(--line);
}

.references h2 {
  border-top: none;
  padding-top: 0;
}

.references {
  counter-reset: refs; /* one count across every list in the section */
}

.references h3 {
  font-size: var(--step-1);
  margin-top: var(--space-3);
}

.references ol {
  list-style: none;
  padding-left: 0;
  font-size: 0.92rem;
}

.references li {
  counter-increment: refs;
  position: relative;
  padding-left: 2.4em;
  margin-bottom: 0.85em;
  color: var(--ink-soft);
}

.references li::before {
  content: counter(refs);
  position: absolute;
  left: 0;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ink-faint);
}

.references li strong {
  color: var(--ink);
  font-weight: 600;
}
.references li a {
  font-family: var(--font-mono);
  font-size: 0.85em;
}

/* ---- 11. Page-to-page navigation (multi-page report) ----------------------- */
.report-nav {
  display: flex;
  justify-content: space-between;
  gap: var(--space-2);
  max-width: var(--measure);
  margin: var(--space-5) auto 0;
  padding-top: var(--space-3);
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.report-nav a {
  color: var(--ink);
  text-decoration: none;
}
.report-nav a:hover {
  color: var(--ai);
  text-decoration: underline;
}
.report-nav .label {
  display: block;
  font-size: 0.7rem;
  color: var(--ink-faint);
  margin-bottom: 0.2em;
}
.report-nav .next {
  text-align: right;
  margin-left: auto;
}

/* ---- 12. Table of contents (index page) ------------------------------------ */
.toc {
  margin: var(--space-3) 0;
}
.toc ol {
  list-style: none;
  padding-left: 0;
  counter-reset: toc;
}
.toc li {
  counter-increment: toc;
  display: flex;
  align-items: baseline;
  gap: 0.6em;
  padding: 0.6em 0;
  border-bottom: 1px solid var(--line);
}
.toc li::before {
  content: counter(toc, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--ink-faint);
}
.toc a {
  font-weight: 500;
  text-decoration: none;
}
.toc a:hover {
  text-decoration: underline;
}
.toc .toc-desc {
  color: var(--ink-soft);
  font-size: 0.88rem;
  margin-left: auto;
  text-align: right;
}

/* ---- 12b. Link list & contact form (references page) ------------------------
   Controls reuse the existing tokens: mono labels, teal action colour,
   the same small uniform radius as panels and figures. */
.link-list {
  padding-left: 1.3em;
}

.contact-form {
  max-width: var(--measure-narrow);
  margin: var(--space-3) 0;
}
.contact-form .field {
  margin-bottom: var(--space-2);
}
.contact-form label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ink-soft);
  margin-bottom: 0.35em;
}
.contact-form input[type="text"],
.contact-form input[type="email"],
.contact-form select,
.contact-form textarea {
  width: 100%;
  padding: 0.6em 0.75em;
  font: inherit;
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
}
.contact-form textarea {
  min-height: 9rem;
  resize: vertical;
}
.contact-form button {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  padding: 0.65em 1.4em;
  color: #fff;
  background: var(--ai);
  border: 1px solid var(--ai);
  border-radius: var(--radius);
  cursor: pointer;
}
.contact-form button:hover {
  background: #18585f;
}
.contact-form .form-note {
  margin-top: var(--space-2);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink-faint);
}

/* ---- 12c. Key-point list (reflection page) ---------------------------------
   The opening <ul> under "Reflections". These are the author's own
   conclusions, so they take the human (clay) accent: larger serif text in
   the same size as the lede, a bold lead-in per point, mono numerals in the
   01, 02 style of the contents list, and hairline rules between points.
   Matches the first list directly after a page <h1> inside <main>, or any
   list given class="key-points". Works on <ul> or <ol>. */
main > h1 + ul,
main > h1 + ol,
.key-points {
  list-style: none;
  padding-left: 0;
  margin: var(--space-3) 0;
  counter-reset: keypoint;
  border-top: 1px solid var(--line);
  font-family: var(--font-body);
  font-size: var(--step-1);
  line-height: 1.6;
  color: var(--ink-soft);
}
main > h1 + ul > li,
main > h1 + ol > li,
.key-points > li {
  counter-increment: keypoint;
  position: relative;
  margin: 0;
  padding: 0.9em 0 0.9em 3em;
  border-bottom: 1px solid var(--line);
}
main > h1 + ul > li::before,
main > h1 + ol > li::before,
.key-points > li::before {
  content: counter(keypoint, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 1.35em;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1;
  color: var(--human);
}
main > h1 + ul > li strong,
main > h1 + ol > li strong,
.key-points > li strong {
  color: var(--ink);
  font-weight: 600;
}

/* ---- 13. Footer ------------------------------------------------------------- */
footer {
  max-width: var(--measure);
  margin: var(--space-5) auto 0;
  padding: var(--space-3) var(--space-2) var(--space-4);
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink-faint);
}

/* ---- 14. Responsive --------------------------------------------------------- */
@media (max-width: 640px) {
  :root {
    --step-4: 1.9rem;
    --step-3: 1.45rem;
    --step-2: 1.2rem;
  }
  .page,
  main,
  .masthead,
  footer,
  .report-nav {
    padding-inline: var(--space-2);
  }
  .toc li {
    flex-wrap: wrap;
  }
  .toc .toc-desc {
    margin-left: 1.2em;
    text-align: left;
  }
}

/* ---- 15. Reduced motion / print --------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  * {
    scroll-behavior: auto !important;
  }
}

@media print {
  body {
    background: #fff;
  }
  .report-nav {
    display: none;
  }
}