/* ============================================================
   A Journey of Challenge, Interrogation, and Transformation
   EDUC 6063 — Digital Composition of Learning
   Visual identity: calm, clean, academic.
   Palette: soft slate-blue + warm paper + muted sage accent.
   ============================================================ */

:root {
  /* Core palette */
  --paper:      #F7F5F0;   /* warm off-white background */
  --paper-deep: #EFEBE3;   /* slightly deeper card / section tint */
  --ink:        #25303B;   /* near-black slate for body text */
  --ink-soft:   #51606C;   /* secondary text */
  --slate:      #3E5C6E;   /* primary slate-blue */
  --slate-deep: #2C4350;   /* darker slate for headings/nav */
  --sage:       #7C9885;   /* muted sage accent */
  --sage-deep:  #5E7A66;   /* darker sage for hover/links */
  --line:       #D9D2C6;   /* hairline rule */
  --line-soft:  #E6E0D5;

  /* Type */
  --display: "Source Serif 4", Georgia, "Times New Roman", serif;
  --body:    "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  /* Measure & rhythm */
  --measure: 68ch;
  --gap: clamp(1.5rem, 4vw, 3rem);
  --radius: 4px;
}

/* ---------- Reset / base ---------- */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation: none !important; transition: none !important; }
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: 1.05rem;
  line-height: 1.72;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* ---------- Typography ---------- */
h1, h2, h3, h4 {
  font-family: var(--display);
  color: var(--slate-deep);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.01em;
}
h1 { font-size: clamp(2rem, 5vw, 3.1rem); margin: 0 0 0.4em; }
h2 { font-size: clamp(1.5rem, 3.2vw, 2.1rem); margin: 2.4em 0 0.6em; }
h3 { font-size: clamp(1.2rem, 2.4vw, 1.45rem); margin: 1.8em 0 0.5em; color: var(--slate); }
p  { margin: 0 0 1.2em; }

a { color: var(--sage-deep); text-decoration: underline; text-underline-offset: 2px; text-decoration-thickness: 1px; }
a:hover { color: var(--slate); }

strong { font-weight: 650; color: var(--slate-deep); }
em { font-style: italic; }

/* ---------- Layout shell ---------- */
.wrap { max-width: 1180px; margin: 0 auto; padding: 0 var(--gap); }
.reading { max-width: var(--measure); margin: 0 auto; }

main { padding: clamp(2.5rem, 6vw, 5rem) 0 4rem; }

/* ---------- Top navigation ---------- */
.site-nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(247,245,240,0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.site-nav .wrap {
  display: flex; align-items: center; justify-content: space-between;
  min-height: 64px; gap: 1rem;
}
.brand {
  font-family: var(--display);
  font-size: 1.02rem; font-weight: 600;
  color: var(--slate-deep); text-decoration: none;
  letter-spacing: -0.01em; white-space: nowrap;
}
.brand:hover { color: var(--sage-deep); }
.nav-links {
  display: flex; gap: 0.2rem; flex-wrap: wrap; list-style: none; margin: 0; padding: 0;
}
.nav-links a {
  display: inline-block; padding: 0.45rem 0.7rem;
  font-size: 0.82rem; font-weight: 500; letter-spacing: 0.01em;
  color: var(--ink-soft); text-decoration: none; border-radius: var(--radius);
  transition: background 0.18s, color 0.18s;
}
.nav-links a:hover { background: var(--paper-deep); color: var(--slate-deep); }
.nav-links a.current { color: var(--slate-deep); background: var(--paper-deep); font-weight: 600; }

.nav-toggle { display: none; background: none; border: 1px solid var(--line);
  border-radius: var(--radius); padding: 0.4rem 0.6rem; cursor: pointer; color: var(--slate-deep); }

@media (max-width: 820px) {
  .nav-toggle { display: inline-block; }
  .nav-links {
    position: absolute; top: 64px; right: var(--gap); left: var(--gap);
    flex-direction: column; gap: 0; background: var(--paper);
    border: 1px solid var(--line); border-radius: var(--radius);
    padding: 0.5rem; box-shadow: 0 12px 30px rgba(44,67,80,0.10);
    display: none;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 0.7rem 0.8rem; font-size: 0.95rem; }
}

/* ---------- Eyebrow / section label ---------- */
.eyebrow {
  font-family: var(--body); font-size: 0.74rem; font-weight: 600;
  letter-spacing: 0.16em; text-transform: uppercase; color: var(--sage-deep);
  margin: 0 0 0.8rem;
}

/* ---------- Page header block ---------- */
.page-head { border-bottom: 1px solid var(--line); padding-bottom: 1.6rem; margin-bottom: 2.4rem; }
.page-head .lede {
  font-family: var(--display); font-size: clamp(1.1rem, 2.2vw, 1.4rem);
  color: var(--ink-soft); line-height: 1.5; max-width: 60ch; margin: 0.6rem 0 0;
  font-weight: 400;
}

/* ---------- Drop cap on opening paragraph (subtle) ---------- */
.dropcap::first-letter {
  font-family: var(--display); font-weight: 600; color: var(--slate);
  font-size: 3.2em; line-height: 0.8; float: left; padding: 0.06em 0.12em 0 0;
}

/* ---------- Pull element / aside ---------- */
.aside-note {
  border-left: 3px solid var(--sage);
  background: var(--paper-deep);
  padding: 1.1rem 1.3rem; margin: 1.8rem 0; border-radius: 0 var(--radius) var(--radius) 0;
  font-size: 0.98rem; color: var(--ink-soft);
}
.aside-note .label {
  display: block; font-family: var(--body); font-size: 0.72rem; font-weight: 600;
  letter-spacing: 0.12em; text-transform: uppercase; color: var(--sage-deep); margin-bottom: 0.35rem;
}

/* ---------- Pull quote ---------- */
.pull {
  font-family: var(--display); font-size: clamp(1.25rem, 2.6vw, 1.6rem);
  line-height: 1.4; color: var(--slate-deep); font-weight: 500;
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
  padding: 1.4rem 0; margin: 2.2rem 0; text-align: left;
}

/* ---------- Hero (home) ---------- */
.hero { padding: clamp(3rem, 9vw, 7rem) 0 clamp(2rem, 5vw, 4rem); }
.hero .eyebrow { margin-bottom: 1.2rem; }
.hero h1 { max-width: 18ch; }
.hero .sub {
  font-family: var(--display); font-size: clamp(1.15rem, 2.4vw, 1.55rem);
  color: var(--ink-soft); font-weight: 400; max-width: 46ch; margin: 1rem 0 0; line-height: 1.5;
}
.hero .meta {
  margin-top: 2rem; font-size: 0.86rem; color: var(--ink-soft); letter-spacing: 0.01em;
}
.hero .meta span { display: inline-block; }
.hero .meta .sep { margin: 0 0.6rem; color: var(--line); }

/* ---------- Journey map (home nav cards) ---------- */
.journey { margin-top: clamp(2.5rem, 6vw, 4rem); }
.journey-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem; margin-top: 1.5rem;
}
.jcard {
  display: block; text-decoration: none; color: inherit;
  background: #fff; border: 1px solid var(--line-soft);
  border-radius: var(--radius); padding: 1.4rem 1.4rem 1.5rem;
  transition: transform 0.18s, box-shadow 0.18s, border-color 0.18s;
}
.jcard:hover { transform: translateY(-3px); box-shadow: 0 14px 30px rgba(44,67,80,0.09); border-color: var(--sage); }
.jcard .step {
  font-family: var(--display); font-size: 0.8rem; color: var(--sage-deep);
  font-weight: 600; letter-spacing: 0.08em;
}
.jcard h3 { margin: 0.5rem 0 0.4rem; color: var(--slate-deep); font-size: 1.2rem; }
.jcard p { margin: 0; font-size: 0.92rem; color: var(--ink-soft); line-height: 1.55; }

/* ---------- Page footer nav (prev / next) ---------- */
.page-foot {
  margin-top: 3.5rem; padding-top: 1.6rem; border-top: 1px solid var(--line);
  display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
}
.page-foot a { text-decoration: none; color: var(--ink-soft); font-size: 0.9rem; max-width: 46%; }
.page-foot a:hover { color: var(--slate-deep); }
.page-foot .dir { display: block; font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--sage-deep); margin-bottom: 0.2rem; }
.page-foot .title { font-family: var(--display); font-size: 1.02rem; color: var(--slate-deep); }
.page-foot .next { text-align: right; margin-left: auto; }

/* ---------- Site footer ---------- */
.site-foot {
  border-top: 1px solid var(--line); margin-top: 4rem;
  padding: 2rem 0; font-size: 0.82rem; color: var(--ink-soft);
}
.site-foot .wrap { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 0.6rem; }

/* ---------- References ---------- */
.ref-list { max-width: var(--measure); margin: 0 auto; }
.ref-list .ref {
  padding-left: 2.2em; text-indent: -2.2em; margin: 0 0 1.1em;
  font-size: 0.96rem; line-height: 1.6; color: var(--ink);
}
.ref-list .ref a { word-break: break-word; }

/* ---------- Utility ---------- */
.section-rule { border: 0; border-top: 1px solid var(--line); margin: 2.6rem 0; }
.center { text-align: center; }
.muted { color: var(--ink-soft); }
.cite { font-variant-numeric: oldstyle-nums; }

/* focus visibility */
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--sage-deep); outline-offset: 2px; border-radius: 2px;
}