/* ============================================================
   Chapter 3 — Βασικές Αρχές Τηλεόρασης (Deck)
   Reuses tokens from styles.css; deck-specific layout helpers.
   ============================================================ */

deck-stage section {
  background: var(--bg-deep);
  color: var(--text-primary);
  font-family: var(--font-ui);
  position: relative;
  overflow: hidden;
}

/* subtle grid + glow per slide */
.slide {
  position: absolute;
  inset: 0;
  padding: 80px 100px;
  display: flex;
  flex-direction: column;
  background: var(--bg-deep);
}
.slide::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(34, 211, 238, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34, 211, 238, 0.04) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, black 30%, transparent 90%);
  z-index: 0;
}
.slide::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 60% 40% at 15% 0%, rgba(34, 211, 238, 0.08), transparent 60%),
    radial-gradient(ellipse 50% 35% at 95% 100%, rgba(244, 114, 182, 0.06), transparent 60%);
  z-index: 0;
}
.slide > * { position: relative; z-index: 1; }

/* slide chrome */
.slide-header {
  display: flex; align-items: center; justify-content: space-between;
  font-family: var(--font-mono); font-size: 14px;
  color: var(--text-muted); letter-spacing: 0.18em; text-transform: uppercase;
  margin-bottom: 28px;
}
.slide-brand {
  display: flex; align-items: center; gap: 12px;
}
.slide-brand .mark {
  width: 28px; height: 28px;
  border-radius: 7px;
  background: linear-gradient(135deg, var(--cyan), var(--blue-dim));
  box-shadow: 0 0 18px rgba(34, 211, 238, 0.4);
  position: relative;
}
.slide-brand .mark::before {
  content:''; position:absolute; inset:6px;
  border:1.5px solid white; border-radius:3px;
  border-top-color: transparent; border-right-color: transparent;
  transform: rotate(-45deg);
}
.slide-eyebrow {
  font-family: var(--font-mono);
  font-size: 13px; letter-spacing: 0.22em;
  color: var(--cyan); text-transform: uppercase;
  margin-bottom: 16px;
}
.slide-title {
  font-size: 64px; font-weight: 700;
  letter-spacing: -0.025em; line-height: 1.05;
  margin-bottom: 16px; text-wrap: balance;
}
.slide-title-md { font-size: 52px; }
.slide-title-sm { font-size: 44px; }
.slide-sub {
  font-size: 22px; color: var(--text-secondary);
  line-height: 1.45; margin-bottom: 36px; max-width: 1000px;
}
.slide-footer {
  position: absolute; bottom: 36px; left: 100px; right: 100px;
  display: flex; align-items: center; justify-content: space-between;
  font-family: var(--font-mono); font-size: 13px; color: var(--text-muted);
  letter-spacing: 0.15em;
  z-index: 2;
}
.slide-footer .pg-bar {
  height: 2px; background: var(--bg-elev); flex: 1; margin: 0 24px;
  border-radius: 2px; overflow: hidden;
}
.slide-footer .pg-bar > div {
  height: 100%; background: linear-gradient(90deg, var(--cyan), var(--pink));
  box-shadow: 0 0 8px var(--cyan-glow);
}

/* timeline */
.timeline {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 32px; align-items: stretch; margin-top: 24px;
}
.tl-card {
  background: var(--bg-panel);
  border: 1px solid var(--border-soft);
  border-radius: var(--r-lg);
  padding: 32px;
  position: relative;
}
.tl-year {
  font-family: var(--font-mono);
  font-size: 56px; font-weight: 700; letter-spacing: -0.03em;
  color: var(--cyan); margin-bottom: 8px;
  line-height: 1;
}
.tl-place {
  font-size: 20px; font-weight: 600; margin-bottom: 6px;
}
.tl-desc { font-size: 16px; color: var(--text-secondary); line-height: 1.5; margin-bottom: 16px; }
.tl-tag {
  font-family: var(--font-mono); font-size: 12px;
  letter-spacing: 0.12em; color: var(--lime);
  padding: 4px 10px; border-radius: 4px;
  background: rgba(163, 230, 53, 0.08);
  border: 1px solid rgba(163, 230, 53, 0.25);
  display: inline-block;
}

/* topic grid */
.topic-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 18px; flex: 1; align-content: start;
}
.topic-card {
  background: var(--bg-panel);
  border: 1px solid var(--border-soft);
  border-radius: var(--r-lg);
  padding: 26px;
  position: relative;
  display: flex; flex-direction: column; gap: 10px;
}
.topic-card .num {
  font-family: var(--font-mono);
  font-size: 13px; color: var(--cyan); letter-spacing: 0.18em;
}
.topic-card h3 { font-size: 22px; font-weight: 600; letter-spacing: -0.01em; }
.topic-card p { font-size: 15px; color: var(--text-secondary); line-height: 1.5; }

/* parts list */
.parts-grid {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 18px; margin-top: 24px;
}
.part-row {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 16px; align-items: center;
  padding: 18px 22px;
  background: var(--bg-panel);
  border: 1px solid var(--border-soft);
  border-radius: var(--r-md);
}
.part-row .icon {
  width: 48px; height: 48px;
  border-radius: 10px;
  background: rgba(34, 211, 238, 0.08);
  border: 1px solid rgba(34, 211, 238, 0.25);
  display: grid; place-items: center;
  font-size: 22px; color: var(--cyan);
}
.part-row h4 { font-size: 17px; font-weight: 600; }
.part-row p { font-size: 13px; color: var(--text-muted); margin-top: 2px; }

/* system cards (NTSC/PAL/SECAM) */
.sys-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 16px; }
.sys-card {
  background: var(--bg-panel);
  border: 1px solid var(--border-soft);
  border-radius: var(--r-lg);
  padding: 36px 28px;
  position: relative;
}
.sys-card.ntsc { border-color: rgba(34, 211, 238, 0.4); }
.sys-card.pal { border-color: rgba(163, 230, 53, 0.4); }
.sys-card.secam { border-color: rgba(244, 114, 182, 0.4); }
.sys-tag {
  font-family: var(--font-mono);
  font-size: 12px; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--text-muted); margin-bottom: 14px;
}
.sys-name {
  font-family: var(--font-mono); font-weight: 700;
  font-size: 56px; letter-spacing: 0.18em;
  margin-bottom: 6px; line-height: 1;
}
.sys-card.ntsc .sys-name { color: var(--cyan); text-shadow: 0 0 24px rgba(34, 211, 238, 0.45); }
.sys-card.pal .sys-name { color: var(--lime); text-shadow: 0 0 24px rgba(163, 230, 53, 0.45); }
.sys-card.secam .sys-name { color: var(--pink); text-shadow: 0 0 24px rgba(244, 114, 182, 0.45); }
.sys-full { font-size: 14px; color: var(--text-secondary); margin-bottom: 24px; line-height: 1.4; }
.sys-region { font-family: var(--font-mono); font-size: 12px; color: var(--text-muted); letter-spacing: 0.1em; margin-bottom: 4px; }
.sys-region-val { font-size: 16px; color: var(--text-primary); font-weight: 500; }

/* big spec slide (single-system) */
.spec-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 64px; flex: 1; align-items: center; }
.spec-stats { display: flex; flex-direction: column; gap: 28px; }
.spec-stat {
  border-left: 3px solid var(--cyan);
  padding-left: 22px;
}
.spec-stat .v {
  font-family: var(--font-mono); font-size: 60px; font-weight: 700;
  letter-spacing: -0.03em; color: var(--cyan); line-height: 1;
}
.spec-stat.lime { border-color: var(--lime); } .spec-stat.lime .v { color: var(--lime); }
.spec-stat.pink { border-color: var(--pink); } .spec-stat.pink .v { color: var(--pink); }
.spec-stat.amber { border-color: var(--amber); } .spec-stat.amber .v { color: var(--amber); }
.spec-stat .l { font-size: 16px; color: var(--text-secondary); margin-top: 6px; }

.giant-name {
  font-family: var(--font-mono);
  font-size: 120px; font-weight: 700;
  letter-spacing: 0.05em; line-height: 0.9;
}
.giant-name.cyan { color: var(--cyan); text-shadow: 0 0 60px rgba(34, 211, 238, 0.4); }
.giant-name.lime { color: var(--lime); text-shadow: 0 0 60px rgba(163, 230, 53, 0.4); }
.giant-name.pink { color: var(--pink); text-shadow: 0 0 60px rgba(244, 114, 182, 0.4); }

/* Comparison table */
.cmp-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 20px;
  background: var(--bg-panel);
  border: 1px solid var(--border-soft);
  border-radius: var(--r-lg);
  overflow: hidden;
}
.cmp-table th, .cmp-table td {
  padding: 18px 24px;
  text-align: left;
  border-bottom: 1px solid var(--border-subtle);
  font-size: 17px;
}
.cmp-table th {
  font-family: var(--font-mono);
  font-size: 12px; letter-spacing: 0.18em;
  color: var(--text-muted); text-transform: uppercase;
  font-weight: 500;
  background: rgba(255,255,255,0.02);
}
.cmp-table td:first-child { color: var(--text-secondary); font-weight: 500; }
.cmp-table tr:last-child td { border-bottom: none; }
.cmp-table .col-ntsc { color: var(--cyan); font-family: var(--font-mono); }
.cmp-table .col-pal { color: var(--lime); font-family: var(--font-mono); }
.cmp-table .col-secam { color: var(--pink); font-family: var(--font-mono); }

/* signal flow */
.flow {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
  align-items: stretch;
  margin: 32px 0;
}
.flow-step {
  background: var(--bg-panel);
  border: 1.5px solid var(--border-strong);
  border-radius: var(--r-md);
  padding: 22px 16px;
  text-align: center;
  position: relative;
}
.flow-step .icon { font-size: 32px; margin-bottom: 10px; display: block; }
.flow-step .label { font-size: 16px; font-weight: 600; }
.flow-step .sub { font-family: var(--font-mono); font-size: 11px; color: var(--text-muted); margin-top: 6px; letter-spacing: 0.08em; }
.flow-step + .flow-step::before {
  content: '→';
  position: absolute; left: -16px; top: 50%;
  transform: translateY(-50%);
  color: var(--cyan); font-size: 18px;
  text-shadow: 0 0 6px var(--cyan-glow);
}

/* spectrum strip */
.spec-strip {
  display: grid; grid-template-columns: repeat(7, 1fr);
  gap: 8px;
  margin-top: 12px;
}
.spec-ch {
  padding: 16px 12px;
  text-align: center;
  background: linear-gradient(180deg, rgba(34, 211, 238, 0.08), rgba(34, 211, 238, 0.02));
  border: 1px solid rgba(34, 211, 238, 0.2);
  border-radius: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--cyan);
  letter-spacing: 0.05em;
}

/* simple two-col */
.two-col {
  display: grid; grid-template-columns: 1fr 1fr; gap: 32px;
  flex: 1; align-content: start;
}
.col-card {
  background: var(--bg-panel);
  border: 1px solid var(--border-soft);
  border-radius: var(--r-lg);
  padding: 32px;
  position: relative;
}
.col-card.cyan { border-color: rgba(34, 211, 238, 0.35); }
.col-card.pink { border-color: rgba(244, 114, 182, 0.35); }
.col-card.lime { border-color: rgba(163, 230, 53, 0.35); }
.col-card.amber { border-color: rgba(251, 191, 36, 0.35); }
.col-card h3 { font-size: 26px; font-weight: 600; margin-bottom: 18px; letter-spacing: -0.01em; }
.col-card .col-tag {
  position: absolute; top: -10px; left: 24px;
  background: var(--bg-deep); padding: 2px 10px;
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.18em;
}
.col-card.cyan .col-tag { color: var(--cyan); }
.col-card.pink .col-tag { color: var(--pink); }
.col-card.lime .col-tag { color: var(--lime); }
.col-card.amber .col-tag { color: var(--amber); }

.bullets { list-style: none; display: flex; flex-direction: column; gap: 12px; }
.bullets li {
  display: flex; align-items: flex-start; gap: 12px;
  font-size: 16px; color: var(--text-secondary); line-height: 1.5;
}
.bullets li::before {
  content: '▸'; color: var(--cyan); flex-shrink: 0; margin-top: 0;
  font-family: var(--font-mono);
}
.bullets.lime li::before { color: var(--lime); }
.bullets.pink li::before { color: var(--pink); }
.bullets.check li::before { content: '✓'; color: var(--lime); font-weight: 700; }
.bullets.x li::before { content: '✕'; color: var(--red); font-weight: 700; }

/* Steps list */
.steps {
  display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px;
  margin: 24px 0;
}
.step {
  background: var(--bg-panel);
  border: 1px solid var(--border-soft);
  border-radius: var(--r-md);
  padding: 22px 18px;
  position: relative;
}
.step .n {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.18em; color: var(--cyan);
  margin-bottom: 10px;
}
.step h4 { font-size: 16px; font-weight: 600; margin-bottom: 6px; }
.step p { font-size: 13px; color: var(--text-muted); line-height: 1.45; }

/* Diagram blocks (signal flow visuals) */
.diagram-card {
  background: var(--bg-panel);
  border: 1px solid var(--border-soft);
  border-radius: var(--r-lg);
  padding: 36px;
  position: relative;
  margin: 16px 0;
}

/* Satellite SVG container */
.sat-diagram {
  position: relative;
  height: 260px;
  margin: 12px 0 24px;
  background: var(--bg-deep);
  border: 1px solid var(--border-soft);
  border-radius: var(--r-lg);
  overflow: hidden;
}

/* Bands */
.bands {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px;
  margin-bottom: 18px;
}
.band-card {
  background: var(--bg-panel);
  border: 1px solid var(--border-soft);
  border-radius: var(--r-lg);
  padding: 26px;
}
.band-name {
  font-family: var(--font-mono);
  font-size: 36px; font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--cyan);
  margin-bottom: 8px;
}
.band-card.ku .band-name { color: var(--lime); }
.band-card.ka .band-name { color: var(--pink); }
.band-spec {
  font-family: var(--font-mono);
  font-size: 22px; font-weight: 600;
  margin-bottom: 4px;
}
.band-meta { font-size: 13px; color: var(--text-muted); margin-bottom: 12px; font-family: var(--font-mono); }
.band-use { font-size: 14px; color: var(--text-secondary); padding-top: 12px; border-top: 1px solid var(--border-subtle); }

.mini-band-table {
  width: 100%; border-collapse: collapse;
  background: var(--bg-panel);
  border: 1px solid var(--border-soft); border-radius: var(--r-md);
  overflow: hidden;
}
.mini-band-table td, .mini-band-table th {
  padding: 12px 18px; text-align: left;
  border-bottom: 1px solid var(--border-subtle);
  font-size: 14px;
}
.mini-band-table th {
  font-family: var(--font-mono); font-size: 10px;
  letter-spacing: 0.18em; color: var(--text-muted);
  text-transform: uppercase; font-weight: 500;
  background: rgba(255,255,255,0.02);
}
.mini-band-table tr:last-child td { border-bottom: none; }
.mini-band-table .b-name { font-family: var(--font-mono); color: var(--cyan); font-weight: 600; }

/* summary slide */
.summary-list {
  display: flex; flex-direction: column;
  gap: 18px; margin-top: 24px;
}
.sum-item {
  display: grid; grid-template-columns: 56px 1fr;
  gap: 22px; align-items: center;
  padding: 22px 26px;
  background: var(--bg-panel);
  border: 1px solid var(--border-soft);
  border-radius: var(--r-md);
}
.sum-num {
  width: 48px; height: 48px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--cyan), var(--blue-dim));
  color: var(--bg-deep);
  display: grid; place-items: center;
  font-family: var(--font-mono);
  font-size: 22px; font-weight: 700;
  box-shadow: 0 0 16px rgba(34, 211, 238, 0.3);
}
.sum-text { font-size: 19px; color: var(--text-primary); line-height: 1.45; }
.sum-text b { color: var(--cyan); font-weight: 600; }

/* title slide */
.title-slide {
  display: flex; flex-direction: column; justify-content: center;
  padding: 100px;
  background: var(--bg-deep);
  position: absolute; inset: 0;
  overflow: hidden;
}
.title-slide::before {
  content: '';
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 80% 30%, rgba(34, 211, 238, 0.15), transparent 60%),
    radial-gradient(ellipse 50% 40% at 20% 80%, rgba(244, 114, 182, 0.1), transparent 60%);
}
.title-eyebrow {
  font-family: var(--font-mono);
  font-size: 16px; letter-spacing: 0.25em;
  color: var(--cyan); text-transform: uppercase;
  margin-bottom: 24px;
}
.title-main {
  font-size: 140px; font-weight: 800;
  letter-spacing: -0.04em; line-height: 0.92;
  margin-bottom: 24px;
  text-wrap: balance;
}
.title-main .accent { color: var(--cyan); }
.title-sub {
  font-size: 28px; color: var(--text-secondary);
  font-weight: 400; line-height: 1.4;
  max-width: 1200px;
  margin-bottom: 64px;
}
.title-meta {
  display: flex; gap: 48px; align-items: center;
  font-family: var(--font-mono); font-size: 14px;
  color: var(--text-muted); letter-spacing: 0.15em;
}
.title-tv-frame {
  position: absolute;
  right: 100px; top: 50%; transform: translateY(-50%);
  width: 320px; height: 240px;
  border-radius: 14px;
  border: 6px solid var(--bg-elev);
  background: var(--bg-base);
  box-shadow: 0 0 60px rgba(34, 211, 238, 0.2), inset 0 0 60px rgba(0,0,0,0.6);
  overflow: hidden;
  z-index: 0;
}
.tv-bars {
  position: absolute; inset: 0;
  background: linear-gradient(90deg,
    #d9d9d9 0% 14.28%,
    #d9d92e 14.28% 28.57%,
    #2ed9d9 28.57% 42.85%,
    #2ed92e 42.85% 57.14%,
    #d92ed9 57.14% 71.42%,
    #d92e2e 71.42% 85.71%,
    #2e2ed9 85.71% 100%);
  opacity: 0.4;
}
.tv-scan {
  position: absolute; inset: 0;
  background: linear-gradient(transparent 50%, rgba(0,0,0,0.25) 50%);
  background-size: 100% 4px;
}

/* CYPRUS slide example list */
.cy-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 20px; flex: 1;
}
.cy-channel {
  background: var(--bg-panel);
  border: 1px solid var(--border-soft);
  border-radius: var(--r-lg);
  padding: 28px;
}
.cy-channel h3 { font-size: 24px; margin-bottom: 6px; }
.cy-channel .cy-type {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.15em;
  color: var(--lime); margin-bottom: 14px;
}
.cy-channel.private .cy-type { color: var(--pink); }
.cy-channel .cy-freq {
  font-family: var(--font-mono); font-size: 14px;
  color: var(--cyan); padding: 10px 14px;
  background: var(--bg-deep); border-radius: 8px;
  margin-bottom: 14px;
}
.cy-channel p { font-size: 14px; color: var(--text-secondary); line-height: 1.5; }

/* digital advantages */
.adv-grid {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 20px; margin-top: 20px;
}
.adv-card {
  background: var(--bg-panel);
  border: 1px solid var(--border-soft);
  border-radius: var(--r-lg);
  padding: 28px;
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 22px; align-items: center;
}
.adv-num {
  width: 56px; height: 56px;
  border-radius: 14px;
  background: rgba(34, 211, 238, 0.12);
  border: 1px solid rgba(34, 211, 238, 0.3);
  color: var(--cyan);
  display: grid; place-items: center;
  font-family: var(--font-mono);
  font-size: 26px; font-weight: 700;
}
.adv-card h4 { font-size: 19px; font-weight: 600; margin-bottom: 6px; }
.adv-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.5; }

/* bottom note */
.note {
  margin-top: 24px;
  padding: 18px 24px;
  background: rgba(251, 191, 36, 0.05);
  border-left: 3px solid var(--amber);
  border-radius: 4px;
  font-size: 16px; color: var(--text-secondary);
  line-height: 1.5;
}
.note b { color: var(--amber); }
.note.cyan { background: rgba(34, 211, 238, 0.05); border-left-color: var(--cyan); }
.note.cyan b { color: var(--cyan); }
.note.lime { background: rgba(163, 230, 53, 0.05); border-left-color: var(--lime); }
.note.lime b { color: var(--lime); }

/* VHF/UHF slide */
.freq-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 32px; flex: 1;
}
.freq-card {
  background: var(--bg-panel);
  border: 1px solid var(--border-soft);
  border-radius: var(--r-lg);
  padding: 36px;
  position: relative;
}
.freq-letters {
  font-family: var(--font-mono);
  font-size: 110px; font-weight: 700;
  letter-spacing: 0.1em;
  line-height: 0.95;
  margin-bottom: 8px;
}
.freq-card.vhf .freq-letters { color: var(--cyan); text-shadow: 0 0 40px rgba(34, 211, 238, 0.4); }
.freq-card.uhf .freq-letters { color: var(--pink); text-shadow: 0 0 40px rgba(244, 114, 182, 0.4); }
.freq-name { font-size: 18px; color: var(--text-secondary); margin-bottom: 24px; }
.freq-range {
  font-family: var(--font-mono);
  font-size: 30px; font-weight: 600;
  margin-bottom: 8px;
}
.freq-card.vhf .freq-range { color: var(--cyan); }
.freq-card.uhf .freq-range { color: var(--pink); }
.freq-channels {
  font-family: var(--font-mono); font-size: 14px;
  color: var(--text-muted); margin-bottom: 24px;
  padding-bottom: 18px; border-bottom: 1px solid var(--border-subtle);
}

/* Compare digital vs analog */
.vs-grid {
  display: grid; grid-template-columns: 1fr 60px 1fr; gap: 24px;
  align-items: stretch; flex: 1;
}
.vs-divider {
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono); font-size: 36px;
  color: var(--text-faint); font-weight: 700;
}

/* List with X / V check */
.bool-list { list-style: none; display: flex; flex-direction: column; gap: 14px; }
.bool-list li {
  display: flex; align-items: flex-start; gap: 14px;
  font-size: 17px; color: var(--text-secondary); line-height: 1.45;
}
.bool-list li::before {
  width: 24px; height: 24px;
  border-radius: 6px;
  display: grid; place-items: center;
  font-size: 14px; font-weight: 700;
  flex-shrink: 0;
}
.bool-list.bad li::before { content: '✕'; background: rgba(251, 113, 133, 0.15); color: var(--red); }
.bool-list.good li::before { content: '✓'; background: rgba(163, 230, 53, 0.15); color: var(--lime); }

/* Session 5-part diagram */
.satparts {
  display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px;
  margin-top: 28px;
}
.satpart {
  text-align: center;
  padding: 26px 14px;
  background: var(--bg-panel);
  border: 1px solid var(--border-soft);
  border-radius: var(--r-lg);
}
.satpart .roman {
  font-family: var(--font-mono);
  font-size: 32px; font-weight: 700; color: var(--cyan);
  margin-bottom: 10px;
}
.satpart h5 { font-size: 15px; font-weight: 600; line-height: 1.3; }