/* ============================================================
   ARTECLAB · GeoServer 3 · Slide System — slides.css
   ============================================================ */

:root {
  --navy:       #0D1B3E;
  --navy-mid:   #162548;
  --navy-light: #1E3464;
  --gold:       #C89B3C;
  --gold-light: #E8B84B;
  --gold-pale:  #F5E6C0;
  --white:      #FFFFFF;

  --bg:         #F4F6FA;
  --card:       #FFFFFF;
  --border:     #E2E8F0;
  --text:       #0D1B3E;
  --muted:      #5A6478;
  --code-bg:    #0D1B3E;
  --code-text:  #E8EDF8;

  --correct:    #1A6B3A;
  --correct-bg: #E8F5EE;
  --info:       #1A4A8B;
  --info-bg:    #E8F0FB;
  --warn:       #7A5200;
  --warn-bg:    #FFF8E6;

  --r:  10px;
  --rs: 6px;
  --t:  0.2s ease;
}

[data-theme="dark"] {
  --bg:       #080F20;
  --card:     #0D1B3E;
  --border:   #1E3464;
  --text:     #E8EDF8;
  --muted:    #8A97B4;
  --code-bg:  #060E1F;
  --code-text:#E8EDF8;
  --gold-pale:#1A1200;
  --correct-bg:#081A0E;
  --info-bg:  #080F20;
  --warn-bg:  #1A1200;
}

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

html, body {
  height: 100%;
  font-family: 'Segoe UI', system-ui, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  transition: background var(--t), color var(--t);
  overflow: hidden; /* slides control scroll */
}

/* ── LAYOUT ──────────────────────────────────────────────── */
.deck {
  display: flex;
  flex-direction: column;
  height: 100vh;
}

/* ── TOPBAR ──────────────────────────────────────────────── */
.topbar {
  background: var(--navy);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  height: 44px;
  flex-shrink: 0;
  gap: 12px;
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.tb-badge {
  background: var(--gold);
  color: var(--navy);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: 4px;
}

.tb-course {
  color: rgba(255,255,255,0.55);
  font-size: 12px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 260px;
}

.tb-class {
  color: var(--gold-light);
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.slide-counter {
  color: rgba(255,255,255,0.45);
  font-size: 11px;
  font-weight: 600;
  min-width: 44px;
  text-align: right;
}

.slide-counter span { color: var(--gold-light); }

/* Theme toggle */
.theme-btn {
  background: none;
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 20px;
  padding: 4px 10px;
  cursor: pointer;
  color: rgba(255,255,255,0.5);
  font-size: 11px;
  display: flex;
  align-items: center;
  gap: 5px;
  transition: border-color .2s, color .2s;
  font-family: inherit;
}
.theme-btn:hover { border-color: var(--gold); color: var(--gold-light); }

/* Fullscreen btn */
.fs-btn {
  background: none;
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 6px;
  padding: 4px 8px;
  cursor: pointer;
  color: rgba(255,255,255,0.5);
  font-size: 13px;
  line-height: 1;
  transition: border-color .2s, color .2s;
}
.fs-btn:hover { border-color: var(--gold); color: var(--gold-light); }

/* ── PROGRESS BAR ────────────────────────────────────────── */
.progress-wrap {
  height: 2px;
  background: var(--navy-light);
  flex-shrink: 0;
}
.progress-fill {
  height: 2px;
  background: var(--gold);
  transition: width .35s ease;
}

/* ── SLIDE VIEWPORT ──────────────────────────────────────── */
.slides-wrap {
  flex: 1;
  overflow: hidden;
  position: relative;
}

.slide {
  display: none;
  height: 100%;
  overflow-y: auto;
  padding: 32px 48px;
  animation: fadeIn .25s ease;
}

.slide.active { display: flex; flex-direction: column; justify-content: center; }

@keyframes fadeIn { from { opacity:0; transform:translateY(6px); } to { opacity:1; transform:translateY(0); } }

/* ── NAVBAR ──────────────────────────────────────────────── */
.navbar {
  background: var(--card);
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  height: 48px;
  flex-shrink: 0;
  transition: background var(--t), border-color var(--t);
}

.nav-btn {
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--rs);
  padding: 7px 16px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 6px;
  transition: border-color .15s, background .15s, color .15s;
  font-family: inherit;
}
.nav-btn:hover:not(:disabled) {
  border-color: var(--gold);
  color: var(--gold);
  background: var(--gold-pale);
}
.nav-btn:disabled { opacity: .3; cursor: default; }

.nav-dots {
  display: flex;
  gap: 5px;
  align-items: center;
}
.nav-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--border);
  cursor: pointer;
  transition: background .2s, transform .2s;
  border: none;
  padding: 0;
}
.nav-dot.active { background: var(--gold); transform: scale(1.4); }
.nav-dot:hover:not(.active) { background: var(--muted); }

/* ── SLIDE TYPES ─────────────────────────────────────────── */

/* — COVER slide — */
.slide-cover {
  background: var(--navy);
  color: white;
  text-align: center;
  align-items: center;
}
.slide-cover .cover-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(200,155,60,.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(200,155,60,.06) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}
.cover-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(200,155,60,.15);
  border: 1px solid rgba(200,155,60,.3);
  border-radius: 20px;
  padding: 4px 14px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--gold-light);
  margin-bottom: 18px;
  position: relative;
}
.cover-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--gold);
  animation: blink 2s ease-in-out infinite;
}
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:.3} }

.cover-title {
  font-size: clamp(26px, 4vw, 42px);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 14px;
  position: relative;
}
.cover-title em { color: var(--gold-light); font-style: normal; }

.cover-sub {
  color: rgba(255,255,255,.5);
  font-size: 15px;
  margin-bottom: 28px;
  position: relative;
}

.cover-pills {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
  position: relative;
}
.cover-pill {
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 20px;
  padding: 5px 14px;
  font-size: 12px;
  color: rgba(255,255,255,.6);
}

/* — SECTION slide — */
.slide-section {
  background: var(--navy);
  align-items: center;
  text-align: center;
}
.section-num {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 12px;
}
.section-title {
  font-size: clamp(22px, 3vw, 34px);
  font-weight: 700;
  color: white;
  line-height: 1.2;
}
.section-desc {
  color: rgba(255,255,255,.45);
  font-size: 14px;
  margin-top: 10px;
  max-width: 480px;
}

/* — CONTENT slide — */
.slide-content { gap: 0; }

.slide-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 6px;
}

.slide-title {
  font-size: clamp(18px, 2.5vw, 26px);
  font-weight: 700;
  color: var(--text);
  line-height: 1.25;
  margin-bottom: 24px;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--gold);
  display: inline-block;
}

.slide-body { flex: 1; display: flex; flex-direction: column; justify-content: center; }

/* Cards grid */
.cards {
  display: grid;
  gap: 12px;
}
.cards-2 { grid-template-columns: 1fr 1fr; }
.cards-3 { grid-template-columns: repeat(3, 1fr); }
.cards-4 { grid-template-columns: repeat(2, 1fr); }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 16px 18px;
  transition: background var(--t), border-color var(--t);
}
.card-icon { font-size: 22px; margin-bottom: 8px; display: block; }
.card-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 4px;
}
.card-desc {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.55;
}

/* Card accent colors */
.card-gold  { border-left: 3px solid var(--gold); }
.card-green { border-left: 3px solid #2D8A52; }
.card-blue  { border-left: 3px solid #3A7FD4; }
.card-red   { border-left: 3px solid #C0392B; }

/* Two-col layout */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  align-items: start;
}
.two-col-6040 { grid-template-columns: 6fr 4fr; }
.two-col-4060 { grid-template-columns: 4fr 6fr; }

/* List items */
.slide-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.slide-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--text);
  line-height: 1.5;
}
.slide-list li::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--gold);
  flex-shrink: 0;
  margin-top: 7px;
}

/* Numbered steps */
.steps {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.step {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}
.step-num {
  width: 26px; height: 26px;
  border-radius: 50%;
  background: var(--navy);
  color: var(--gold-light);
  font-size: 11px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
[data-theme="dark"] .step-num { background: var(--navy-light); }
.step-text { flex: 1; }
.step-title { font-size: 13px; font-weight: 700; color: var(--text); margin-bottom: 2px; }
.step-desc  { font-size: 12px; color: var(--muted); line-height: 1.5; }

/* Code block */
.code-block {
  background: var(--code-bg);
  border-radius: var(--rs);
  padding: 16px 18px;
  font-family: 'Cascadia Code', 'Fira Code', 'Consolas', monospace;
  font-size: 13px;
  line-height: 1.6;
  color: var(--code-text);
  overflow-x: auto;
  white-space: pre;
}
.code-block .c  { color: #6A8FAF; }   /* comment */
.code-block .k  { color: var(--gold-light); }  /* keyword */
.code-block .s  { color: #98D982; }   /* string */
.code-block .n  { color: #7EC8E3; }   /* name/var */
.code-block .p  { color: #E8EDF8; }   /* punctuation */

.code-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 6px;
}

/* Callout boxes */
.callout {
  border-radius: var(--rs);
  padding: 12px 16px;
  font-size: 13px;
  line-height: 1.6;
  display: flex;
  gap: 10px;
  align-items: flex-start;
}
.callout-icon { font-size: 16px; flex-shrink: 0; margin-top: 1px; }
.callout-body { flex: 1; }
.callout-title { font-weight: 700; margin-bottom: 2px; font-size: 12px; }

.callout-warn  { background: var(--warn-bg);    color: var(--warn);    border-left: 3px solid #C89B3C; }
.callout-info  { background: var(--info-bg);    color: var(--info);    border-left: 3px solid #3A7FD4; }
.callout-ok    { background: var(--correct-bg); color: var(--correct); border-left: 3px solid #2D8A52; }

/* Comparison table */
.compare-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.compare-table th {
  background: var(--navy);
  color: var(--gold-light);
  font-weight: 700;
  padding: 10px 14px;
  text-align: left;
  font-size: 11px;
  letter-spacing: .5px;
}
.compare-table td {
  padding: 9px 14px;
  border-bottom: 1px solid var(--border);
  color: var(--text);
  vertical-align: top;
  line-height: 1.45;
}
.compare-table tr:last-child td { border-bottom: none; }
.compare-table tr:nth-child(even) td { background: var(--bg); }

/* Diagram / hierarchy */
.hierarchy {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.hier-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--rs);
  font-size: 13px;
  transition: background var(--t), border-color var(--t);
}
.hier-item.hier-1 { margin-left: 0;   border-left: 3px solid var(--gold); }
.hier-item.hier-2 { margin-left: 24px; border-left: 3px solid #3A7FD4; }
.hier-item.hier-3 { margin-left: 48px; border-left: 3px solid #2D8A52; }
.hier-icon { font-size: 16px; }
.hier-name { font-weight: 700; color: var(--text); }
.hier-desc { font-size: 11px; color: var(--muted); margin-left: auto; }

/* Big stat */
.big-stat {
  text-align: center;
  padding: 12px;
}
.big-num {
  font-size: clamp(36px, 6vw, 60px);
  font-weight: 700;
  color: var(--gold-light);
  line-height: 1;
  display: block;
}
.big-label {
  font-size: 13px;
  color: var(--muted);
  margin-top: 4px;
}

/* Key-value pairs */
.kv-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.kv {
  display: flex;
  gap: 12px;
  align-items: baseline;
  font-size: 13px;
}
.kv-key {
  font-weight: 700;
  color: var(--gold);
  min-width: 100px;
  flex-shrink: 0;
}
.kv-val { color: var(--text); line-height: 1.45; }

/* Quiz link card */
.quiz-cta {
  background: var(--navy);
  border-radius: var(--r);
  padding: 18px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 8px;
}
.quiz-cta-text { color: white; }
.quiz-cta-title { font-size: 15px; font-weight: 700; margin-bottom: 3px; }
.quiz-cta-sub   { font-size: 12px; color: rgba(255,255,255,.45); }
.quiz-cta a {
  background: var(--gold);
  color: var(--navy);
  font-size: 12px;
  font-weight: 700;
  padding: 8px 16px;
  border-radius: var(--rs);
  text-decoration: none;
  white-space: nowrap;
  transition: background .15s;
}
.quiz-cta a:hover { background: var(--gold-light); }

/* ── RESPONSIVE ──────────────────────────────────────────── */
@media (max-width: 700px) {
  .slide { padding: 20px 18px; }
  .cards-2, .cards-3, .two-col, .two-col-6040, .two-col-4060 {
    grid-template-columns: 1fr;
  }
  .cards-4 { grid-template-columns: 1fr; }
  .tb-course { display: none; }
  .nav-dots  { display: none; }
}

/* ── IMAGE SUPPORT ───────────────────────────────────────── */
.slide-img {
  width: 100%;
  border-radius: var(--r);
  border: 1px solid var(--border);
  display: block;
  object-fit: cover;
}
.slide-img-caption {
  font-size: 10px;
  color: var(--muted);
  text-align: center;
  margin-top: 5px;
  font-style: italic;
}
.img-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r);
  overflow: hidden;
  transition: background var(--t), border-color var(--t);
}
.img-card img {
  width: 100%;
  display: block;
  object-fit: cover;
  max-height: 220px;
}
.img-card-body { padding: 12px 14px; }
.img-card-title { font-size: 13px; font-weight: 700; color: var(--text); margin-bottom: 3px; }
.img-card-desc  { font-size: 11px; color: var(--muted); line-height: 1.5; }

/* Placeholder cuando la imagen no existe aún */
.img-placeholder {
  background: var(--navy-light);
  border-radius: var(--r);
  border: 1px dashed var(--gold);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 160px;
  padding: 20px;
  text-align: center;
}
.img-placeholder .ph-icon  { font-size: 28px; margin-bottom: 8px; }
.img-placeholder .ph-name  { font-size: 11px; font-weight: 700; color: var(--gold-light); margin-bottom: 3px; font-family: monospace; }
.img-placeholder .ph-label { font-size: 10px; color: rgba(255,255,255,.35); }

/* Instructor strip */
.instructor-strip {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(200,155,60,.08);
  border: 1px solid rgba(200,155,60,.2);
  border-radius: var(--rs);
  padding: 10px 14px;
  margin-top: 14px;
}
.is-avatar {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--navy);
  border: 2px solid var(--gold);
  color: var(--gold-light);
  font-size: 12px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.is-name  { font-size: 12px; font-weight: 700; color: var(--text); }
.is-role  { font-size: 11px; color: var(--muted); }