/* ═══════════════════════════════════════════════
   BCA Classroom — Shared Theme
   Light, editorial. Typeset with Fraunces + DM Sans.
═══════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,300;0,9..144,500;0,9..144,700;1,9..144,400&family=DM+Sans:opsz,wght@9..40,400;9..40,500;9..40,600&family=DM+Mono:wght@400;500&display=swap');

:root {
  /* Surface */
  --bg:        #f5f2ed;
  --surface:   #ffffff;
  --surface2:  #f0ece5;
  --surface3:  #e8e3da;
  --border:    #ddd8ce;
  --border2:   #ccc6bc;

  /* Text */
  --ink:       #1c1814;
  --ink2:      #5c5650;
  --ink3:      #9c9690;

  /* Accent — warm ochre */
  --accent:    #b5620a;
  --accent-bg: #fdf3e8;
  --accent2:   #1a5c8a;
  --accent2-bg:#e8f2fa;

  /* Status */
  --green:     #1e6e45;
  --green-bg:  #e8f5ee;
  --red:       #b52a1c;
  --red-bg:    #fdecea;

  /* Type */
  --font-display: 'Fraunces', Georgia, serif;
  --font-body:    'DM Sans', sans-serif;
  --font-mono:    'DM Mono', monospace;

  /* Elevation */
  --shadow-xs:  0 1px 2px rgba(0,0,0,.06);
  --shadow-sm:  0 2px 8px rgba(0,0,0,.08);
  --shadow-md:  0 6px 24px rgba(0,0,0,.10);
  --shadow-lg:  0 16px 48px rgba(0,0,0,.14);
  --shadow-xl:  0 32px 80px rgba(0,0,0,.18);

  /* Motion */
  --ease: cubic-bezier(.4,0,.2,1);
  --ease-spring: cubic-bezier(.34,1.56,.64,1);
  --dur-fast: .15s;
  --dur: .24s;
  --dur-slow: .38s;

  --radius-sm: 6px;
  --radius:    10px;
  --radius-lg: 16px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 16px; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ─── SLIDE BODY TYPOGRAPHY ─── */
.slide-p {
  font-size: .95rem;
  line-height: 1.78;
  color: var(--ink2);
  margin-bottom: 14px;
}
.slide-p:last-child { margin-bottom: 0; }

/* Bullet list */
.sl {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 9px;
  margin: 12px 0;
}
.sl li {
  display: flex;
  align-items: flex-start;
  gap: 11px;
  font-size: .9rem;
  color: var(--ink2);
  line-height: 1.65;
}
.sl li::before {
  content: '';
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--accent);
  margin-top: 9px;
  flex-shrink: 0;
}

/* Keyword highlight */
.kw { color: var(--accent); font-weight: 600; }
.kw2 { color: var(--accent2); font-weight: 600; }

/* Glossary link */
.gl {
  color: var(--accent2);
  border-bottom: 1.5px dashed var(--accent2);
  cursor: pointer;
  border-radius: 2px;
  padding: 0 1px;
  transition: background var(--dur-fast) var(--ease);
}
.gl:hover { background: var(--accent2-bg); }

/* Quote */
.slide-quote {
  border-left: 3px solid var(--accent);
  padding: 14px 18px;
  background: var(--accent-bg);
  border-radius: 0 var(--radius) var(--radius) 0;
  margin: 16px 0;
  font-family: var(--font-display);
  font-size: .95rem;
  font-style: italic;
  color: var(--ink);
  line-height: 1.72;
}

/* Two-column */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin: 14px 0;
}
.col-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
}
.col-card h4 {
  font-family: var(--font-display);
  font-size: .9rem;
  font-weight: 500;
  margin-bottom: 10px;
  color: var(--ink);
}
.col-card .sl li { font-size: .82rem; }
.col-card p { font-size: .83rem; color: var(--ink2); line-height: 1.6; margin-bottom: 6px; }

/* Card grid */
.card-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 14px 0;
}
.info-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
}
.info-card-label {
  font-family: var(--font-mono);
  font-size: .65rem;
  text-transform: uppercase;
  letter-spacing: .08em;
  margin-bottom: 8px;
  font-weight: 500;
}
.info-card h4 {
  font-family: var(--font-display);
  font-size: .92rem;
  color: var(--ink);
  margin-bottom: 6px;
}
.info-card p { font-size: .82rem; color: var(--ink2); line-height: 1.6; }
.info-card .eg {
  font-size: .76rem;
  color: var(--ink3);
  margin-top: 8px;
  padding: 8px 10px;
  background: var(--surface2);
  border-radius: var(--radius-sm);
  line-height: 1.6;
}
.info-card .eg strong {
  display: block;
  font-family: var(--font-mono);
  font-size: .65rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--accent);
  margin-bottom: 3px;
}

/* KW def list */
.kw-defs { display: flex; flex-direction: column; gap: 6px; margin: 14px 0; }
.kw-def {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 9px 13px;
  background: var(--surface);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}
.kw-def-term {
  font-family: var(--font-mono);
  font-size: .68rem;
  font-weight: 500;
  color: var(--accent);
  min-width: 110px;
  text-transform: uppercase;
  letter-spacing: .04em;
  padding-top: 2px;
  flex-shrink: 0;
}
.kw-def-desc { font-size: .84rem; color: var(--ink2); line-height: 1.58; }

/* Phases */
.phases { display: flex; flex-direction: column; gap: 6px; margin: 12px 0; }
.phase-row {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 10px 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}
.phase-num {
  width: 24px; height: 24px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-family: var(--font-mono);
  font-size: .68rem;
  font-weight: 500;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  margin-top: 1px;
}
.phase-title { font-size: .85rem; font-weight: 600; color: var(--ink); margin-bottom: 2px; }
.phase-desc { font-size: .8rem; color: var(--ink2); line-height: 1.5; }

/* Highlight boxes */
.hl { padding: 12px 16px; border-radius: var(--radius-sm); margin: 12px 0; font-size: .86rem; line-height: 1.68; }
.hl-amber { background: var(--accent-bg); border: 1px solid rgba(181,98,10,.18); color: var(--ink); }
.hl-blue  { background: var(--accent2-bg); border: 1px solid rgba(26,92,138,.18); color: var(--ink); }
.hl-red   { background: var(--red-bg); border: 1px solid rgba(181,42,28,.18); color: var(--ink); }
.hl-green { background: var(--green-bg); border: 1px solid rgba(30,110,69,.18); color: var(--ink); }
.hl strong { font-family: var(--font-mono); font-size: .68rem; text-transform: uppercase; letter-spacing: .06em; display: block; margin-bottom: 4px; }
.hl-amber strong { color: var(--accent); }
.hl-blue  strong { color: var(--accent2); }
.hl-red   strong { color: var(--red); }
.hl-green strong { color: var(--green); }

/* Flow row */
.flow-row {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0;
  padding: 12px 0;
}
.flow-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 7px 12px;
  font-size: .76rem;
  font-weight: 500;
  color: var(--ink);
  text-align: center;
  min-width: 68px;
}
.flow-arrow { color: var(--ink3); font-size: .9rem; padding: 0 4px; }

/* Table */
.slide-table {
  width: 100%;
  border-collapse: collapse;
  margin: 14px 0;
  font-size: .8rem;
}
.slide-table th {
  background: var(--surface2);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: .66rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  padding: 9px 12px;
  text-align: left;
  border-bottom: 2px solid var(--border);
}
.slide-table td {
  padding: 9px 12px;
  border-bottom: 1px solid var(--border);
  color: var(--ink2);
  vertical-align: top;
  line-height: 1.5;
}
.slide-table tr:last-child td { border-bottom: none; }
.slide-table tr:hover td { background: var(--surface2); }

/* Waterfall cascade */
.wf-stack { display: flex; flex-direction: column; gap: 0; margin: 14px 0; }
.wf-row { display: flex; align-items: stretch; }
.wf-indent { width: 22px; flex-shrink: 0; }
.wf-box {
  flex: 1;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 9px 14px;
  margin-bottom: 5px;
}
.wf-box h5 { font-size: .83rem; font-weight: 600; color: var(--ink); margin-bottom: 2px; }
.wf-box p  { font-size: .77rem; color: var(--ink2); line-height: 1.45; }
.wf-join { padding-left: 20px; color: var(--ink3); font-size: .75rem; height: 8px; margin-bottom: -3px; }

/* V-model */
.vmodel { display: flex; flex-direction: column; align-items: center; gap: 3px; padding: 10px 0; }
.vmodel-row { display: flex; align-items: center; gap: 6px; }
.vmodel-left  { text-align: right; font-size: .72rem; color: var(--ink2); min-width: 130px; }
.vmodel-right { text-align: left;  font-size: .72rem; color: var(--ink2); min-width: 130px; }
.vmodel-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--accent); flex-shrink: 0; }
.vmodel-line { height: 2px; background: var(--border); flex: 1; }

/* Spiral grid */
.spiral-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 9px;
  margin: 12px 0;
}
.spiral-quad {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 11px 13px;
}
.spiral-quad-num { font-family: var(--font-mono); font-size: .62rem; color: var(--accent); margin-bottom: 3px; }
.spiral-quad h5  { font-size: .8rem; font-weight: 600; color: var(--ink); margin-bottom: 3px; }
.spiral-quad p   { font-size: .75rem; color: var(--ink2); line-height: 1.5; }

/* Standish chart */
.standish-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 28px;
  padding: 12px;
  flex-wrap: wrap;
}
.standish-svg { width: 130px; height: 130px; }
.standish-legend { display: flex; flex-direction: column; gap: 9px; }
.legend-row { display: flex; align-items: center; gap: 9px; font-size: .8rem; color: var(--ink2); }
.legend-dot { width: 11px; height: 11px; border-radius: 3px; flex-shrink: 0; }

/* Section divider slide */
.divider-slide {
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 10px;
  padding: 40px;
  background: var(--surface);
}
.divider-slide .sec-eyebrow {
  font-family: var(--font-mono);
  font-size: .68rem;
  text-transform: uppercase;
  letter-spacing: .14em;
  color: var(--accent);
}
.divider-slide h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 300;
  color: var(--ink);
  line-height: 1.15;
}
.divider-slide h2 em { font-style: italic; color: var(--accent); }
.divider-slide p {
  font-size: .9rem;
  color: var(--ink3);
  max-width: 420px;
  font-style: italic;
}

/* Slide content wrapper (used inside topic files) */
.slide-content {
  padding: 28px 32px 20px;
  height: 100%;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}
.slide-eyebrow {
  font-family: var(--font-mono);
  font-size: .65rem;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--accent);
  margin-bottom: 6px;
}
.slide-title {
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 2.5vw, 1.7rem);
  font-weight: 500;
  color: var(--ink);
  line-height: 1.22;
  margin-bottom: 18px;
}
.slide-body { flex: 1; overflow-y: auto; }