/* =============================================================
   Vee Kennedy — Teaching ePortfolio (ENC 6813)
   Design system: purple-forward, technology theme, clean layout
   ============================================================= */

/* ---------- Fonts ---------- */
/* Space Grotesk (display), Inter (body), JetBrains Mono (labels/code) */

/* ---------- Theme tokens ---------- */
:root {
  color-scheme: light;

  /* Surfaces & text (light) */
  --bg:          #f5f3fb;
  --bg-2:        #efeafa;
  --surface:     #ffffff;
  --surface-2:   #f7f4fe;
  --text:        #1a1526;
  --text-strong: #120d1e;
  --muted:       #615a75;
  --muted-2:     #837c96;
  --border:      #e7e0f5;
  --border-2:    #ddd3f0;

  /* Purple brand */
  --primary:        #7c3aed;
  --primary-strong: #6d28d9;
  --primary-deep:   #5b21b6;
  --primary-soft:   #ede9fe;
  --primary-softer: #f4f0ff;
  --accent:         #a855f7;
  --accent-2:       #c026d3; /* fuchsia edge for gradients */
  --indigo:         #4f46e5;

  /* Hero palette (always dark, both themes) */
  --hero-bg:    #150a2e;
  --hero-text:  #f3eefe;
  --hero-muted: #c9bdec;
  --hero-line:  rgba(167, 139, 250, 0.14);

  /* Effects */
  --shadow-sm: 0 1px 2px rgba(31, 12, 60, 0.06), 0 1px 3px rgba(31, 12, 60, 0.05);
  --shadow-md: 0 6px 20px -6px rgba(65, 26, 122, 0.18), 0 2px 6px rgba(65, 26, 122, 0.08);
  --shadow-lg: 0 24px 60px -18px rgba(65, 26, 122, 0.35);
  --ring: 0 0 0 3px rgba(124, 58, 237, 0.35);

  --grad: linear-gradient(120deg, #7c3aed 0%, #a855f7 45%, #c026d3 100%);
  --grad-soft: linear-gradient(120deg, #ede9fe, #f9edff);

  /* Metrics */
  --radius:    16px;
  --radius-sm: 10px;
  --radius-lg: 24px;
  --nav-h: 68px;
  --container: 1120px;
  --prose: 760px;

  --font-display: "Space Grotesk", "Segoe UI", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "Cascadia Code", Consolas, monospace;
}

:root[data-theme="dark"] {
  color-scheme: dark;

  --bg:          #0c0819;
  --bg-2:        #100b21;
  --surface:     #151030;
  --surface-2:   #1b1440;
  --text:        #e9e4f7;
  --text-strong: #ffffff;
  --muted:       #a99fca;
  --muted-2:     #8b81ad;
  --border:      #2a2150;
  --border-2:    #352a63;

  --primary:        #a78bfa;
  --primary-strong: #8b5cf6;
  --primary-deep:   #7c3aed;
  --primary-soft:   #241a45;
  --primary-softer: #1d1638;
  --accent:         #c084fc;
  --accent-2:       #e879f9;
  --indigo:         #818cf8;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 8px 24px -8px rgba(0, 0, 0, 0.55);
  --shadow-lg: 0 30px 70px -20px rgba(0, 0, 0, 0.7);
  --ring: 0 0 0 3px rgba(167, 139, 250, 0.4);

  --grad-soft: linear-gradient(120deg, #241a45, #2a1840);
}

/* ---------- Reset & base ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  font-size: 1.02rem;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img, svg { max-width: 100%; display: block; }
a { color: var(--primary-strong); text-decoration: none; }
a:hover { text-decoration: underline; }

:focus-visible {
  outline: none;
  box-shadow: var(--ring);
  border-radius: 6px;
}

::selection { background: rgba(168, 85, 247, 0.28); color: inherit; }

/* Scrollbar accent */
* { scrollbar-color: var(--primary) transparent; }

/* ---------- Typography ---------- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--text-strong);
  line-height: 1.12;
  letter-spacing: -0.02em;
  font-weight: 700;
}
h2 { font-size: clamp(1.6rem, 1.1rem + 2vw, 2.4rem); }
h3 { font-size: clamp(1.2rem, 1rem + 0.9vw, 1.5rem); letter-spacing: -0.015em; }
h4 { font-size: 1.05rem; letter-spacing: -0.01em; }
p  { color: var(--text); }
strong { color: var(--text-strong); font-weight: 650; }

.prose p + p { margin-top: 1.05em; }
.prose p, .prose li { color: #2b2540; }
:root[data-theme="dark"] .prose p, :root[data-theme="dark"] .prose li { color: var(--text); }

/* ---------- Layout ---------- */
.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: 24px; }
.prose { max-width: var(--prose); }
.section { padding-block: clamp(48px, 4vw + 28px, 92px); }
.section-tight { padding-block: clamp(36px, 3vw + 20px, 64px); }
.stack > * + * { margin-top: 1rem; }
.center { text-align: center; }
.lead { font-size: clamp(1.08rem, 1rem + 0.5vw, 1.28rem); color: var(--muted); line-height: 1.6; }

/* Kicker / section label */
.kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--primary-strong);
  font-weight: 500;
  margin-bottom: 0.9rem;
}
.kicker::before {
  content: "";
  width: 26px; height: 2px;
  background: var(--grad);
  border-radius: 2px;
}
.kicker.no-line::before { display: none; }
:root[data-theme="dark"] .kicker { color: var(--primary); }

.section-head { max-width: 760px; margin-bottom: 2.4rem; }
.section-head.center { margin-inline: auto; }

/* ---------- Top navigation ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--border);
}
.nav .container { display: flex; align-items: center; justify-content: space-between; gap: 16px; }

.brand { display: inline-flex; align-items: center; gap: 12px; font-family: var(--font-display); font-weight: 700; color: var(--text-strong); letter-spacing: -0.02em; }
.brand:hover { text-decoration: none; }
.brand .mark {
  width: 38px; height: 38px; border-radius: 11px;
  display: grid; place-items: center;
  background: var(--grad);
  color: #fff; font-size: 0.92rem; font-weight: 700;
  box-shadow: 0 6px 16px -4px rgba(124, 58, 237, 0.6);
  position: relative; overflow: hidden;
}
.brand .mark::after {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(circle at 30% 20%, rgba(255,255,255,0.5), transparent 55%);
}
.brand .brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand .brand-text small { font-family: var(--font-mono); font-size: 0.64rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted-2); font-weight: 500; }

.nav-links { display: flex; align-items: center; gap: 4px; list-style: none; padding: 0; }
.nav-links a {
  display: inline-block;
  padding: 8px 14px;
  border-radius: 9px;
  color: var(--muted);
  font-weight: 500;
  font-size: 0.94rem;
  transition: color 0.18s, background 0.18s;
}
.nav-links a:hover { color: var(--text-strong); background: var(--primary-softer); text-decoration: none; }
.nav-links a[aria-current="page"] { color: var(--primary-strong); background: var(--primary-soft); }
:root[data-theme="dark"] .nav-links a[aria-current="page"] { color: var(--primary); }

.nav-tools { display: flex; align-items: center; gap: 8px; }

.icon-btn {
  width: 40px; height: 40px;
  display: grid; place-items: center;
  border: 1px solid var(--border-2);
  background: var(--surface);
  color: var(--text);
  border-radius: 10px;
  cursor: pointer;
  transition: transform 0.15s, border-color 0.15s, background 0.15s;
}
.icon-btn:hover { border-color: var(--primary); transform: translateY(-1px); }
.icon-btn svg { width: 18px; height: 18px; }
.icon-btn .moon { display: none; }
:root[data-theme="dark"] .icon-btn .sun { display: none; }
:root[data-theme="dark"] .icon-btn .moon { display: block; }

.nav-toggle { display: none; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 0.55em;
  font-family: var(--font-body);
  font-weight: 600; font-size: 0.96rem;
  padding: 12px 22px;
  border-radius: 11px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.2s, background 0.2s, border-color 0.2s;
}
.btn:hover { text-decoration: none; transform: translateY(-2px); }
.btn svg { width: 17px; height: 17px; }
.btn-primary { background: var(--grad); color: #fff; box-shadow: 0 10px 26px -10px rgba(124, 58, 237, 0.7); }
.btn-primary:hover { box-shadow: 0 16px 34px -10px rgba(124, 58, 237, 0.8); }
.btn-ghost { background: var(--surface); color: var(--text-strong); border-color: var(--border-2); box-shadow: var(--shadow-sm); }
.btn-ghost:hover { border-color: var(--primary); }
.btn-outline-light { background: rgba(255,255,255,0.06); color: #fff; border-color: rgba(255,255,255,0.28); }
.btn-outline-light:hover { background: rgba(255,255,255,0.14); }

.btn-row { display: flex; flex-wrap: wrap; gap: 12px; }

/* ---------- Hero (dark tech panel) ---------- */
.hero {
  position: relative;
  background: var(--hero-bg);
  color: var(--hero-text);
  overflow: hidden;
  isolation: isolate;
}
.hero::before { /* tech grid */
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(var(--hero-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--hero-line) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(ellipse 90% 80% at 50% 0%, #000 55%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 90% 80% at 50% 0%, #000 55%, transparent 100%);
  z-index: -2;
}
.hero::after { /* aurora glow */
  content: "";
  position: absolute; z-index: -1;
  top: -30%; left: 50%; transform: translateX(-50%);
  width: 900px; height: 620px;
  background:
    radial-gradient(closest-side, rgba(168, 85, 247, 0.5), transparent 70%),
    radial-gradient(closest-side, rgba(192, 38, 211, 0.32), transparent 70%);
  background-position: 30% 40%, 75% 30%;
  background-repeat: no-repeat;
  background-size: 60% 80%, 55% 70%;
  filter: blur(30px);
  opacity: 0.85;
}
.hero .container { position: relative; }

.hero-home { padding-block: clamp(72px, 9vw, 132px); }
.hero-page { padding-block: clamp(58px, 7vw, 92px); }

.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 0.7em;
  font-family: var(--font-mono);
  font-size: 0.76rem; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--hero-muted);
  border: 1px solid rgba(167, 139, 250, 0.3);
  background: rgba(167, 139, 250, 0.08);
  padding: 7px 14px; border-radius: 999px;
  margin-bottom: 1.4rem;
}
.hero-eyebrow .dot { width: 7px; height: 7px; border-radius: 50%; background: #34d399; box-shadow: 0 0 10px #34d399; }

.hero h1 {
  color: #fff;
  font-size: clamp(2.3rem, 1.3rem + 4.4vw, 4.1rem);
  line-height: 1.04;
  letter-spacing: -0.03em;
}
.hero h1 .grad-text { background: linear-gradient(100deg, #d8b4fe, #f0abfc 60%, #c4b5fd); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p.lead { color: var(--hero-muted); max-width: 640px; }
.hero-home p.lead { margin-top: 1.4rem; }

.hero-meta { display: flex; flex-wrap: wrap; gap: 10px 22px; margin-top: 2rem; font-family: var(--font-mono); font-size: 0.82rem; color: var(--hero-muted); }
.hero-meta span { display: inline-flex; align-items: center; gap: 0.5em; }
.hero-meta svg { width: 15px; height: 15px; opacity: 0.85; color: var(--accent); }
.hero-page h1 { font-size: clamp(2rem, 1.3rem + 3vw, 3.2rem); }
.hero-page .lead { margin-top: 1.1rem; }

.breadcrumb { font-family: var(--font-mono); font-size: 0.76rem; letter-spacing: 0.08em; color: var(--hero-muted); margin-bottom: 1.2rem; text-transform: uppercase; }
.breadcrumb a { color: var(--hero-muted); }
.breadcrumb a:hover { color: #fff; }

/* Wave/divider under hero */
.hero-fade { height: 1px; background: linear-gradient(90deg, transparent, var(--primary), transparent); opacity: 0.5; }

/* ---------- Cards ---------- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}
.card-pad { padding: clamp(20px, 2.4vw, 30px); }

.grid { display: grid; gap: 22px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* Feature cards (home) */
.feature {
  position: relative;
  display: flex; flex-direction: column;
  padding: 28px;
  overflow: hidden;
}
.feature::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 3px;
  background: var(--grad); transform: scaleX(0); transform-origin: left;
  transition: transform 0.3s ease;
}
.feature:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: var(--border-2); }
.feature:hover::before { transform: scaleX(1); }
.feature .num { font-family: var(--font-mono); font-size: 0.78rem; color: var(--muted-2); letter-spacing: 0.12em; }
.feature .ico {
  width: 50px; height: 50px; border-radius: 13px;
  display: grid; place-items: center;
  background: var(--grad-soft); color: var(--primary-strong);
  border: 1px solid var(--border-2);
  margin: 14px 0 18px;
}
:root[data-theme="dark"] .feature .ico { color: var(--primary); }
.feature .ico svg { width: 24px; height: 24px; }
.feature h3 { margin-bottom: 8px; }
.feature p { color: var(--muted); font-size: 0.96rem; flex-grow: 1; }
.feature .go { margin-top: 18px; font-family: var(--font-mono); font-size: 0.82rem; font-weight: 500; color: var(--primary-strong); display: inline-flex; align-items: center; gap: 0.5em; letter-spacing: 0.04em; }
:root[data-theme="dark"] .feature .go { color: var(--primary); }
.feature:hover .go svg { transform: translateX(4px); }
.feature .go svg { width: 15px; height: 15px; transition: transform 0.2s; }
.card-link { color: inherit; }
.card-link:hover { text-decoration: none; }

/* Pillar cards */
.pillar { padding: 26px; }
.pillar .ico { width: 44px; height: 44px; border-radius: 11px; display: grid; place-items: center; background: var(--primary-soft); color: var(--primary-strong); margin-bottom: 16px; }
:root[data-theme="dark"] .pillar .ico { color: var(--primary); }
.pillar .ico svg { width: 22px; height: 22px; }
.pillar h4 { margin-bottom: 8px; font-size: 1.12rem; }
.pillar p { color: var(--muted); font-size: 0.94rem; }

/* ---------- Chips / tags ---------- */
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  font-family: var(--font-mono); font-size: 0.76rem; letter-spacing: 0.02em;
  padding: 5px 11px; border-radius: 8px;
  background: var(--primary-soft); color: var(--primary-strong);
  border: 1px solid var(--border-2);
}
:root[data-theme="dark"] .chip { color: var(--primary); }
.chip.plain { background: var(--surface-2); color: var(--muted); }

/* ---------- Meta bar (page facts) ---------- */
.factbar {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 1px; background: var(--border);
  border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; box-shadow: var(--shadow-sm);
}
.factbar .cell { background: var(--surface); padding: 18px 20px; }
.factbar .k { font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted-2); }
.factbar .v { font-family: var(--font-display); font-weight: 600; color: var(--text-strong); margin-top: 4px; font-size: 1.02rem; }

/* ---------- Prose blocks ---------- */
.content-block + .content-block { margin-top: 2.6rem; }
.content-block h3 { margin-bottom: 0.7rem; }
.content-block h3 + p, .content-block h3 + .lead { margin-top: 0; }

ul.ticks, ul.arrows { list-style: none; padding: 0; }
ul.ticks li, ul.arrows li { position: relative; padding-left: 1.9em; margin-bottom: 0.7em; color: var(--text); }
ul.ticks li::before {
  content: ""; position: absolute; left: 0; top: 0.36em;
  width: 1.15em; height: 1.15em; border-radius: 50%;
  background: var(--primary-soft);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%237c3aed' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E");
  background-size: 0.72em; background-repeat: no-repeat; background-position: center;
}
ul.arrows li::before {
  content: "→"; position: absolute; left: 0; top: 0; color: var(--primary); font-weight: 700;
}
.numbered { counter-reset: n; list-style: none; padding: 0; }
.numbered li { position: relative; padding-left: 3rem; margin-bottom: 1.1em; }
.numbered li::before {
  counter-increment: n; content: counter(n, decimal-leading-zero);
  position: absolute; left: 0; top: 0;
  font-family: var(--font-mono); font-size: 0.82rem; font-weight: 600;
  color: var(--primary-strong);
  background: var(--primary-soft); border: 1px solid var(--border-2);
  width: 2.1rem; height: 2.1rem; border-radius: 8px;
  display: grid; place-items: center;
}
:root[data-theme="dark"] .numbered li::before { color: var(--primary); }

/* ---------- Callout / author note ---------- */
.callout {
  border: 1px solid var(--border-2);
  border-left: 3px solid var(--primary);
  background: var(--surface-2);
  border-radius: var(--radius-sm);
  padding: 18px 22px;
  display: flex; gap: 14px;
}
.callout .ci { flex-shrink: 0; color: var(--primary); margin-top: 2px; }
.callout .ci svg { width: 20px; height: 20px; }
.callout .label { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted-2); margin-bottom: 4px; }
.callout p { color: var(--muted); font-size: 0.95rem; }
.callout.note { border-left-color: var(--accent); }
.callout.disclose { border-left-color: var(--indigo); }

/* Pull quote */
.pullquote {
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 1rem + 1.5vw, 1.9rem);
  line-height: 1.35; letter-spacing: -0.02em;
  color: var(--text-strong);
  border-left: 3px solid transparent;
  border-image: var(--grad) 1;
  padding: 6px 0 6px 28px;
  margin: 2.4rem 0;
}
.pullquote cite { display: block; font-family: var(--font-mono); font-size: 0.8rem; font-style: normal; color: var(--muted-2); margin-top: 1rem; letter-spacing: 0.04em; }

/* ---------- Tables ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow-sm); }
table.data { width: 100%; border-collapse: collapse; font-size: 0.92rem; min-width: 520px; }
table.data th, table.data td { text-align: left; padding: 13px 16px; border-bottom: 1px solid var(--border); vertical-align: top; }
table.data thead th {
  background: var(--surface-2);
  font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--muted-2); font-weight: 600;
}
table.data tbody tr:last-child td { border-bottom: none; }
table.data tbody tr { background: var(--surface); transition: background 0.15s; }
table.data tbody tr:hover { background: var(--primary-softer); }
table.data td .wk { font-family: var(--font-mono); font-weight: 600; color: var(--primary-strong); }
:root[data-theme="dark"] table.data td .wk { color: var(--primary); }
table.data .muted { color: var(--muted); font-size: 0.86rem; }
tr.highlight td { background: var(--primary-softer); }
tr.highlight:hover td { background: var(--primary-soft); }
.tag-inline { display: inline-block; font-family: var(--font-mono); font-size: 0.66rem; letter-spacing: 0.06em; text-transform: uppercase; padding: 2px 7px; border-radius: 6px; background: var(--grad); color: #fff; margin-top: 6px; }

/* Compact grade scale */
.gradescale { display: grid; grid-template-columns: repeat(auto-fit, minmax(96px, 1fr)); gap: 10px; }
.gradescale .g { border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--surface); padding: 12px 14px; text-align: center; box-shadow: var(--shadow-sm); }
.gradescale .g .l { font-family: var(--font-display); font-weight: 700; font-size: 1.2rem; color: var(--text-strong); }
.gradescale .g .p { font-family: var(--font-mono); font-size: 0.74rem; color: var(--muted); margin-top: 2px; }

/* ---------- Grading breakdown bars ---------- */
.bars { display: flex; flex-direction: column; gap: 18px; }
.bar-row .bar-top { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 7px; gap: 12px; }
.bar-row .bar-name { font-weight: 600; color: var(--text-strong); }
.bar-row .bar-pct { font-family: var(--font-mono); font-weight: 600; color: var(--primary-strong); font-size: 0.95rem; }
:root[data-theme="dark"] .bar-row .bar-pct { color: var(--primary); }
.bar-track { height: 11px; border-radius: 999px; background: var(--surface-2); border: 1px solid var(--border); overflow: hidden; }
.bar-fill { height: 100%; border-radius: 999px; background: var(--grad); width: 0; transition: width 1.1s cubic-bezier(0.22, 1, 0.36, 1); }
.bar-row .bar-desc { color: var(--muted); font-size: 0.86rem; margin-top: 6px; }

/* ---------- Timeline (assignment weight / stages) ---------- */
.stagelist { display: grid; gap: 12px; }
.stage { display: flex; align-items: center; gap: 16px; padding: 14px 18px; border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--surface); box-shadow: var(--shadow-sm); }
.stage .st-w { font-family: var(--font-mono); font-weight: 700; color: #fff; background: var(--grad); border-radius: 8px; padding: 6px 10px; font-size: 0.82rem; min-width: 52px; text-align: center; }
.stage .st-b { font-weight: 600; color: var(--text-strong); }
.stage .st-d { color: var(--muted); font-size: 0.88rem; }

/* ---------- Details / accordion ---------- */
details.acc {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}
details.acc + details.acc { margin-top: 10px; }
details.acc > summary {
  cursor: pointer; list-style: none;
  padding: 16px 20px;
  display: flex; align-items: center; justify-content: space-between; gap: 14px;
  font-family: var(--font-display); font-weight: 600; color: var(--text-strong);
}
details.acc > summary::-webkit-details-marker { display: none; }
details.acc > summary .plus { flex-shrink: 0; width: 22px; height: 22px; position: relative; transition: transform 0.25s; color: var(--primary); }
details.acc > summary .plus::before, details.acc > summary .plus::after { content: ""; position: absolute; background: currentColor; border-radius: 2px; }
details.acc > summary .plus::before { top: 50%; left: 3px; right: 3px; height: 2px; transform: translateY(-50%); }
details.acc > summary .plus::after { left: 50%; top: 3px; bottom: 3px; width: 2px; transform: translateX(-50%); transition: opacity 0.25s; }
details.acc[open] > summary .plus::after { opacity: 0; }
details.acc .acc-body { padding: 0 20px 20px; color: var(--muted); font-size: 0.94rem; }
details.acc .acc-body > *:first-child { margin-top: 0; }

/* ---------- Poster mockups (signature assignment) ---------- */
.poster {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  background: var(--surface);
}
.poster .poster-top { background: var(--hero-bg); color: #fff; padding: 22px 24px; position: relative; overflow: hidden; }
.poster .poster-top::after { content: ""; position: absolute; inset: 0; background-image: linear-gradient(var(--hero-line) 1px, transparent 1px), linear-gradient(90deg, var(--hero-line) 1px, transparent 1px); background-size: 26px 26px; opacity: 0.7; }
.poster .poster-top .pt-in { position: relative; }
.poster .poster-stance { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.14em; text-transform: uppercase; padding: 4px 10px; border-radius: 999px; display: inline-block; margin-bottom: 10px; }
.poster .poster-stance.for { background: rgba(52, 211, 153, 0.16); color: #6ee7b7; border: 1px solid rgba(52, 211, 153, 0.4); }
.poster .poster-stance.against { background: rgba(251, 113, 133, 0.16); color: #fda4af; border: 1px solid rgba(251, 113, 133, 0.4); }
.poster .poster-top h4 { color: #fff; font-size: 1.25rem; line-height: 1.2; }
.poster .poster-top .byline { color: var(--hero-muted); font-size: 0.84rem; margin-top: 6px; font-family: var(--font-mono); }
.poster .poster-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--border); }
.poster .pcol { background: var(--surface); padding: 18px 20px; }
.poster .pcol h5 { font-family: var(--font-display); font-size: 0.96rem; margin-bottom: 12px; display: flex; align-items: center; gap: 8px; }
.poster .pcol h5 .badge { font-family: var(--font-mono); font-size: 0.62rem; padding: 2px 7px; border-radius: 5px; letter-spacing: 0.06em; }
.poster .pcol.for h5 .badge { background: rgba(16, 185, 129, 0.14); color: #059669; }
.poster .pcol.against h5 .badge { background: rgba(244, 63, 94, 0.12); color: #e11d48; }
:root[data-theme="dark"] .poster .pcol.for h5 .badge { color: #34d399; }
:root[data-theme="dark"] .poster .pcol.against h5 .badge { color: #fb7185; }
.poster .pcol ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.poster .pcol li { font-size: 0.86rem; line-height: 1.45; color: var(--text); padding-left: 14px; position: relative; }
.poster .pcol li::before { content: ""; position: absolute; left: 0; top: 0.5em; width: 6px; height: 6px; border-radius: 50%; background: var(--primary); }
.poster .pcol li b { display: block; color: var(--text-strong); font-weight: 650; font-size: 0.88rem; }
.poster .poster-foot { padding: 16px 20px; border-top: 1px solid var(--border); background: var(--surface-2); }
.poster .poster-foot .fl { font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted-2); margin-bottom: 6px; }
.poster .poster-foot p { font-size: 0.86rem; color: var(--muted); }

.thesis-card { padding: 22px 24px; }
.thesis-card .stance-tag { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase; font-weight: 600; }
.thesis-card.for .stance-tag { color: #059669; }
.thesis-card.against .stance-tag { color: #e11d48; }
:root[data-theme="dark"] .thesis-card.for .stance-tag { color: #34d399; }
:root[data-theme="dark"] .thesis-card.against .stance-tag { color: #fb7185; }
.thesis-card h4 { margin: 8px 0 10px; font-style: italic; }
.thesis-card p { color: var(--muted); font-size: 0.94rem; }

/* ---------- Rubric ---------- */
.rubric { display: grid; gap: 12px; }
.rubric .r { display: grid; grid-template-columns: auto 1fr auto; gap: 16px; align-items: center; padding: 16px 20px; border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--surface); box-shadow: var(--shadow-sm); }
.rubric .r .pts { font-family: var(--font-display); font-weight: 700; font-size: 1.35rem; color: var(--primary-strong); min-width: 46px; }
:root[data-theme="dark"] .rubric .r .pts { color: var(--primary); }
.rubric .r .rc h4 { font-size: 1rem; margin-bottom: 3px; }
.rubric .r .rc p { color: var(--muted); font-size: 0.88rem; }
.rubric .r .pts-label { font-family: var(--font-mono); font-size: 0.64rem; color: var(--muted-2); letter-spacing: 0.08em; text-transform: uppercase; text-align: center; }

/* ---------- Controversy grid ---------- */
.press-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; }
.press { padding: 22px; border-top: 3px solid var(--primary); }
.press .pn { font-family: var(--font-mono); font-size: 0.72rem; color: var(--muted-2); letter-spacing: 0.1em; }
.press h4 { margin: 8px 0 8px; font-size: 1.08rem; }
.press p { color: var(--muted); font-size: 0.9rem; }

/* ---------- CTA band ---------- */
.cta {
  position: relative; overflow: hidden;
  background: var(--hero-bg); color: #fff;
  border-radius: var(--radius-lg);
  padding: clamp(34px, 4vw, 56px);
  text-align: center;
}
.cta::before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(var(--hero-line) 1px, transparent 1px), linear-gradient(90deg, var(--hero-line) 1px, transparent 1px); background-size: 34px 34px; mask-image: radial-gradient(ellipse 80% 90% at 50% 50%, #000 40%, transparent 75%); -webkit-mask-image: radial-gradient(ellipse 80% 90% at 50% 50%, #000 40%, transparent 75%); }
.cta > * { position: relative; }
.cta h2 { color: #fff; }
.cta p { color: var(--hero-muted); max-width: 560px; margin: 12px auto 24px; }

/* ---------- Footer ---------- */
.footer { border-top: 1px solid var(--border); background: var(--bg-2); padding-block: 52px 30px; margin-top: 40px; }
.footer .cols { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 32px; }
.footer h5 { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted-2); margin-bottom: 14px; font-weight: 600; }
.footer ul { list-style: none; padding: 0; display: grid; gap: 9px; }
.footer ul a, .footer ul span { color: var(--muted); font-size: 0.92rem; }
.footer ul a:hover { color: var(--primary-strong); }
.footer .f-brand p { color: var(--muted); font-size: 0.92rem; margin-top: 12px; max-width: 300px; }
.footer .f-bottom { margin-top: 40px; padding-top: 22px; border-top: 1px solid var(--border); display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; align-items: center; }
.footer .f-bottom p { color: var(--muted-2); font-size: 0.82rem; font-family: var(--font-mono); }

/* ---------- Reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.6s ease, transform 0.6s cubic-bezier(0.22, 1, 0.36, 1); }
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: 0.08s; }
.reveal.d2 { transition-delay: 0.16s; }
.reveal.d3 { transition-delay: 0.24s; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .bar-fill { transition: none; }
}

/* ---------- Skip link ---------- */
.skip { position: absolute; left: -999px; top: 8px; background: var(--surface); color: var(--text-strong); padding: 10px 16px; border-radius: 8px; z-index: 200; border: 1px solid var(--border); }
.skip:focus { left: 8px; }

/* ---------- Divider ---------- */
.divider { height: 1px; background: var(--border); border: none; margin: 0; }

/* ---------- Written reflection (scrollable) ---------- */
.reflection-scroll {
  min-height: 220px;
  max-height: 460px;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 24px 26px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  line-height: 1.75;
  scrollbar-width: thin;
  scrollbar-color: var(--primary) var(--surface-2);
}
.reflection-scroll:focus-visible { box-shadow: var(--ring); }
.reflection-scroll > *:first-child { margin-top: 0; }
.reflection-scroll p + p { margin-top: 1.05em; }
.reflection-scroll h3, .reflection-scroll h4 { margin: 1.4em 0 0.5em; }
.reflection-scroll::-webkit-scrollbar { width: 10px; }
.reflection-scroll::-webkit-scrollbar-track { background: var(--surface-2); border-radius: 999px; }
.reflection-scroll::-webkit-scrollbar-thumb { background: var(--grad); border-radius: 999px; border: 2px solid var(--surface-2); }
.reflection-placeholder { color: var(--muted-2); font-size: 0.98rem; }
.reflection-hint { display: inline-flex; align-items: center; gap: 0.5em; margin-top: 12px; font-family: var(--font-mono); font-size: 0.74rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted-2); }
.reflection-scroll .workscited { margin-top: 0.6em; }
.reflection-scroll .workscited h4 { margin-bottom: 0.7em; }
.reflection-scroll .workscited p { padding-left: 1.7em; text-indent: -1.7em; font-size: 0.92rem; color: var(--muted); }
.reflection-scroll .workscited p + p { margin-top: 0.6em; }

/* ---------- Prompt log (disclosure page) ---------- */
.promptlog { display: grid; gap: 16px; }
.prompt-item { border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); box-shadow: var(--shadow-sm); overflow: hidden; }
.prompt-item .ph { display: flex; align-items: center; gap: 12px; padding: 11px 18px; border-bottom: 1px solid var(--border); background: var(--surface-2); }
.prompt-item .ph .dot3 { display: flex; gap: 6px; }
.prompt-item .ph .dot3 i { width: 10px; height: 10px; border-radius: 50%; background: var(--border-2); display: block; }
.prompt-item .ph .plabel { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted-2); }
.prompt-item .ph .pmeta { margin-left: auto; font-family: var(--font-mono); font-size: 0.68rem; color: var(--muted-2); letter-spacing: 0.06em; }
.prompt-item .pbody { padding: 18px 20px; font-family: var(--font-mono); font-size: 0.85rem; line-height: 1.75; color: var(--text); white-space: pre-wrap; word-break: break-word; }
.prompt-item .pbody.note { font-family: var(--font-body); color: var(--muted); white-space: normal; }

/* ---------- Split contribution cards ---------- */
.contrib h4 { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
.contrib .who { width: 34px; height: 34px; border-radius: 9px; display: grid; place-items: center; color: #fff; background: var(--grad); flex-shrink: 0; }
.contrib .who svg { width: 18px; height: 18px; }

/* ---------- Responsive ---------- */
@media (max-width: 940px) {
  .grid-3 { grid-template-columns: 1fr 1fr; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer .cols { grid-template-columns: 1fr 1fr; }
  .footer .f-brand { grid-column: 1 / -1; }
}
@media (max-width: 760px) {
  .nav-links, .nav .brand .brand-text small { display: none; }
  .nav-toggle { display: grid; }
  .nav-links.open {
    display: flex; flex-direction: column; align-items: stretch;
    position: absolute; top: var(--nav-h); left: 0; right: 0;
    background: var(--surface); border-bottom: 1px solid var(--border);
    padding: 12px 24px 18px; gap: 4px; box-shadow: var(--shadow-md);
  }
  .nav-links.open a { padding: 12px 14px; }
  .grid-3, .grid-2, .grid-4 { grid-template-columns: 1fr; }
  .factbar { grid-template-columns: 1fr 1fr; }
  .poster .poster-cols { grid-template-columns: 1fr; }
  .rubric .r { grid-template-columns: auto 1fr; }
  .rubric .r .pts-label { display: none; }
  .footer .cols { grid-template-columns: 1fr; }
  .hero-meta { gap: 8px 16px; }
}
@media (max-width: 440px) {
  .factbar { grid-template-columns: 1fr; }
  .gradescale { grid-template-columns: repeat(3, 1fr); }
}

/* ---------- Print ---------- */
@media print {
  .nav, .nav-tools, .cta, .footer, .hero::after, .reveal { box-shadow: none !important; }
  .reveal { opacity: 1 !important; transform: none !important; }
  body { background: #fff; }
  .hero { background: #2a1b4d !important; -webkit-print-color-adjust: exact; print-color-adjust: exact; }
}