/* ============================================================
   CYBER THEME — Dark Purple + Neon Green
   For reveal.js presentations + landing page
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&family=JetBrains+Mono:ital,wght@0,400;0,600;1,400&family=Inter:wght@300;400;500;600&display=swap');

/* ── Design Tokens ─────────────────────────────────────────── */
:root {
  --bg:           #0d0a1a;
  --bg-panel:     #140f24;
  --bg-panel-alt: #1a1232;
  --accent:       #39ff14;
  --accent-2:     #c084fc;
  --text:         #e2e8f0;
  --text-muted:   #6b618a;
  --green:        #50fa7b;
  --amber:        #fbbf24;
  --red:          #ff5555;
  --purple:       #bd93f9;
  --blue:         #8be9fd;
  --code-bg:      #1a1228;
  --code-text:    #39ff14;
  --border:       rgba(189, 147, 249, 0.2);
  --glow:         rgba(57, 255, 20, 0.35);
  --glow-soft:    rgba(57, 255, 20, 0.12);
}

/* ── reveal.js Core Overrides ──────────────────────────────── */
.reveal-viewport { background: var(--bg); }

.reveal {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 26px;
  color: var(--text);
}

/* ── Headings ──────────────────────────────────────────────── */
.reveal h1 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  color: var(--accent);
  text-shadow: 0 0 30px var(--glow), 0 0 60px rgba(57,255,20,0.15);
  letter-spacing: -0.02em;
  line-height: 1.1;
  text-transform: none;
}

.reveal h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  color: var(--accent);
  border-left: 3px solid var(--accent);
  padding-left: 0.45em;
  margin-bottom: 0.4em;
  text-shadow: 0 0 18px var(--glow-soft);
  text-transform: none;
  letter-spacing: -0.01em;
  line-height: 1.15;
}

.reveal h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 500;
  color: var(--accent-2);
  margin-bottom: 0.2em;
  margin-top: 0.1em;
  text-transform: none;
  letter-spacing: 0;
}

.reveal h4 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 500;
  color: var(--purple);
  text-transform: none;
}

/* ── Body Text ─────────────────────────────────────────────── */
.reveal p {
  line-height: 1.35;
  margin: 0.2em 0;
}

.reveal strong { color: var(--accent); font-weight: 600; }
.reveal em { color: var(--accent-2); font-style: italic; }

.reveal a {
  color: var(--accent);
  text-decoration: none;
  transition: all 0.2s;
}
.reveal a:hover {
  color: var(--green);
  text-shadow: 0 0 12px var(--glow);
}

/* ── Lists ─────────────────────────────────────────────────── */
.reveal ul {
  list-style: none;
  padding-left: 0;
  margin: 0;
}

.reveal ul > li {
  position: relative;
  padding-left: 1.1em;
  margin-bottom: 0.28em;
  line-height: 1.32;
}

.reveal ul > li::before {
  content: '▸';
  color: var(--accent);
  position: absolute;
  left: 0;
  font-size: 0.75em;
  top: 0.15em;
}

.reveal ul ul { margin-top: 0.15em; margin-left: 0.4em; }
.reveal ul ul > li { margin-bottom: 0.12em; font-size: 0.84em; color: var(--text-muted); }
.reveal ul ul > li::before { content: '◦'; color: var(--accent-2); }

.reveal ol {
  padding-left: 1.5em;
}
.reveal ol > li {
  margin-bottom: 0.25em;
  line-height: 1.32;
}
.reveal ol > li::marker { color: var(--accent); font-weight: 600; }

/* ── Code ──────────────────────────────────────────────────── */
.reveal code {
  font-family: 'JetBrains Mono', 'Courier New', monospace;
  background: var(--code-bg);
  color: var(--code-text);
  padding: 0.1em 0.4em;
  border-radius: 4px;
  font-size: 0.82em;
  border: 1px solid rgba(57,255,20,0.15);
}

.reveal pre {
  background: var(--code-bg);
  border: 1px solid rgba(57,255,20,0.25);
  border-radius: 8px;
  box-shadow: 0 0 25px rgba(57,255,20,0.06), inset 0 0 20px rgba(0,0,0,0.4);
  padding: 0 !important;
  margin: 0.6em 0;
  width: 100%;
  position: relative;
}

/* Terminal header bar */
.reveal pre::before {
  content: '● ● ●';
  display: block;
  padding: 0.4em 0.8em;
  background: rgba(57,255,20,0.08);
  border-bottom: 1px solid rgba(57,255,20,0.15);
  color: var(--text-muted);
  font-size: 0.6em;
  letter-spacing: 0.3em;
  border-radius: 8px 8px 0 0;
}

.reveal pre code {
  font-family: 'JetBrains Mono', monospace;
  color: var(--code-text) !important;
  background: transparent !important;
  border: none !important;
  padding: 0.5em 0.8em !important;
  font-size: 0.65em;
  line-height: 1.5;
  text-shadow: 0 0 8px rgba(57,255,20,0.25);
  display: block;
}

/* highlight.js line numbers */
.hljs-ln-numbers { color: rgba(57,255,20,0.3) !important; border-right: 1px solid rgba(57,255,20,0.15) !important; padding-right: 0.8em !important; }

/* ── Tables ────────────────────────────────────────────────── */
.reveal table {
  border-collapse: collapse;
  width: 100%;
  font-size: 0.62em;
  margin: 0.2em 0;
}

.reveal table th {
  background: rgba(57,255,20,0.08);
  color: var(--accent);
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  padding: 0.35em 0.6em;
  border-bottom: 2px solid rgba(57,255,20,0.4);
  text-align: left;
  letter-spacing: 0.03em;
  font-size: 0.95em;
}

.reveal table td {
  padding: 0.28em 0.6em;
  border-bottom: 1px solid rgba(189,147,249,0.12);
  color: var(--text);
  vertical-align: top;
  line-height: 1.3;
}

.reveal table tr:nth-child(even) td {
  background: rgba(20,15,36,0.6);
}

.reveal table tr:hover td {
  background: rgba(57,255,20,0.04);
}

/* ── Blockquote ────────────────────────────────────────────── */
.reveal blockquote {
  background: rgba(57,255,20,0.04);
  border-left: 4px solid var(--accent);
  border-radius: 0 8px 8px 0;
  padding: 0.7em 1.1em;
  font-style: italic;
  color: var(--accent-2);
  font-size: 1.05em;
  margin: 0.5em 0;
  width: auto;
  box-shadow: none;
}

/* ── Progress & Controls ───────────────────────────────────── */
.reveal .progress { height: 3px; color: var(--accent); }
.reveal .progress span {
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent), 0 0 25px var(--glow-soft);
}

.reveal .controls { color: var(--accent); }

.reveal .slide-number {
  background: rgba(57,255,20,0.08);
  color: var(--accent);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.55em;
  padding: 0.3em 0.7em;
  border-radius: 4px;
  border: 1px solid rgba(57,255,20,0.2);
}

/* ── Layout Grid ───────────────────────────────────────────── */
.cols-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1.2em; align-items: start; }
.cols-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 1em; align-items: start; }
.cols-4 { display: grid; grid-template-columns: 1fr 1fr 1fr 1fr; gap: 0.8em; align-items: start; }

/* ── Panels ────────────────────────────────────────────────── */
.panel {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.55em 0.7em;
}
.panel-green  { border-color: rgba(80, 250,123,0.45); background: rgba(80,250,123,0.04); }
.panel-amber  { border-color: rgba(251,191, 36,0.45); background: rgba(251,191,36,0.04); }
.panel-red    { border-color: rgba(255, 85, 85,0.45); background: rgba(255,85,85,0.04); }
.panel-purple { border-color: rgba(189,147,249,0.45); background: rgba(189,147,249,0.04); }
.panel-blue   { border-color: rgba(139,233,253,0.45); background: rgba(139,233,253,0.04); }
.panel-glow   { border-color: rgba(57,255,20,0.4); box-shadow: 0 0 20px rgba(57,255,20,0.06); }

/* ── Badges / Tags ─────────────────────────────────────────── */
.tag {
  display: inline-block;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 0.6em;
  padding: 0.25em 0.8em;
  border-radius: 20px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 0.5em;
}
.tag-green  { background: rgba(80,250,123,0.12); color: var(--green);  border: 1px solid var(--green); }
.tag-amber  { background: rgba(251,191,36,0.12); color: var(--amber);  border: 1px solid var(--amber); }
.tag-red    { background: rgba(255,85,85,0.12);  color: var(--red);    border: 1px solid var(--red); }
.tag-purple { background: rgba(189,147,249,0.12);color: var(--purple); border: 1px solid var(--purple); }
.tag-blue   { background: rgba(139,233,253,0.12);color: var(--blue);   border: 1px solid var(--blue); }
.tag-accent { background: rgba(57,255,20,0.12);  color: var(--accent); border: 1px solid var(--accent); }

/* ── Inline Highlight Colors ───────────────────────────────── */
.hl-green  { color: var(--green); }
.hl-amber  { color: var(--amber); }
.hl-red    { color: var(--red); }
.hl-purple { color: var(--purple); }
.hl-blue   { color: var(--blue); }
.hl-accent { color: var(--accent); font-weight: 600; }
.hl-muted  { color: var(--text-muted); }

/* ── Detail / Subtitle Text ────────────────────────────────── */
.detail {
  display: block;
  font-size: 0.78em;
  color: var(--text-muted);
  margin-top: 0.2em;
  font-weight: 400;
  line-height: 1.4;
}

.eyebrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65em;
  color: var(--accent-2);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  display: block;
  margin-bottom: 0.4em;
}

.meta {
  font-size: 0.65em;
  color: var(--text-muted);
  margin-top: 0.8em;
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: 0.05em;
}

/* ── Title Slide ───────────────────────────────────────────── */
.title-slide { text-align: center; }
.title-slide h1 { margin-bottom: 0.3em; }
.title-slide h3 { color: var(--accent-2); margin-bottom: 0.5em; font-weight: 400; font-size: 1em; }

/* ── Section Divider ───────────────────────────────────────── */
.section-divider { text-align: center; }
.section-divider h1 { border: none !important; padding: 0 !important; }

/* ── Diagram Components ────────────────────────────────────── */
.diagram {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.15em;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65em;
}

.diagram-row {
  display: flex;
  gap: 0.6em;
  justify-content: center;
  flex-wrap: wrap;
}

.diagram-box {
  background: var(--bg-panel);
  border: 1px solid rgba(57,255,20,0.3);
  border-radius: 6px;
  padding: 0.4em 1.2em;
  text-align: center;
  color: var(--accent);
  min-width: 200px;
  line-height: 1.5;
}
.diagram-box small { display: block; color: var(--text-muted); font-size: 0.85em; }
.diagram-box.box-hl { border-color: var(--accent); box-shadow: 0 0 12px var(--glow-soft); }
.diagram-box.box-openwrt { border-color: var(--blue); color: var(--blue); }
.diagram-box.box-opnsense { border-color: var(--purple); color: var(--purple); }
.diagram-box.box-device  { border-color: var(--accent-2); color: var(--accent-2); min-width: 100px; padding: 0.3em 0.6em; }
.diagram-box.box-internet { border-color: var(--text-muted); color: var(--text-muted); }

.diagram-arrow {
  color: var(--accent-2);
  font-size: 1.1em;
  line-height: 1;
}

.diagram-label {
  font-size: 0.75em;
  color: var(--text-muted);
  font-style: italic;
}

/* ── Bare List (no bullets, for panels) ────────────────────── */
.bare-list { list-style: none !important; padding-left: 0 !important; }
.bare-list li::before { display: none !important; }
.bare-list li { padding: 0.2em 0; font-size: 0.85em; color: var(--text-muted); padding-left: 0 !important; }
.bare-list li strong { color: var(--text); }

/* ── Utility ───────────────────────────────────────────────── */
.text-center { text-align: center; }
.text-right  { text-align: right; }
.full-width  { width: 100%; }
.no-margin   { margin: 0 !important; }
.small-text  { font-size: 0.75em; }
.mono        { font-family: 'JetBrains Mono', monospace; }
.spacer      { height: 0.5em; }

/* ── Auto-Animate List Items on Slide Enter ────────────────── */
/* Items cascade in automatically; click always advances to next slide */
@keyframes fadeUpIn {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}

.reveal .slides section.present li {
  animation: fadeUpIn 0.38s cubic-bezier(0.25, 0.46, 0.45, 0.94) both;
}

/* Staggered delays — covers up to 12 items per list */
.reveal .slides section.present li:nth-child(1)  { animation-delay: 0.04s; }
.reveal .slides section.present li:nth-child(2)  { animation-delay: 0.12s; }
.reveal .slides section.present li:nth-child(3)  { animation-delay: 0.20s; }
.reveal .slides section.present li:nth-child(4)  { animation-delay: 0.28s; }
.reveal .slides section.present li:nth-child(5)  { animation-delay: 0.36s; }
.reveal .slides section.present li:nth-child(6)  { animation-delay: 0.44s; }
.reveal .slides section.present li:nth-child(7)  { animation-delay: 0.52s; }
.reveal .slides section.present li:nth-child(8)  { animation-delay: 0.60s; }
.reveal .slides section.present li:nth-child(9)  { animation-delay: 0.68s; }
.reveal .slides section.present li:nth-child(10) { animation-delay: 0.76s; }
.reveal .slides section.present li:nth-child(11) { animation-delay: 0.84s; }
.reveal .slides section.present li:nth-child(12) { animation-delay: 0.92s; }

/* Sub-items animate in sync with their parent — no extra delay */
.reveal .slides section.present ul ul > li {
  animation-duration: 0.28s;
  animation-delay: inherit;
}

/* ── Source Attribution ────────────────────────────────────── */
.source-link {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.5em;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
  padding-top: 0.4em;
  margin-top: auto;
  display: block;
}
.source-link a { color: var(--accent-2); }

/* ── Landing Page (index.html) ─────────────────────────────── */
body.landing {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', sans-serif;
  margin: 0;
  padding: 0;
  min-height: 100vh;
}

.landing-header {
  padding: 3rem 2rem 1.5rem;
  text-align: center;
  border-bottom: 1px solid var(--border);
}

.landing-header h1 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--accent);
  text-shadow: 0 0 30px var(--glow), 0 0 60px rgba(57,255,20,0.1);
  margin: 0 0 0.3em;
  letter-spacing: -0.02em;
}

.landing-header p {
  color: var(--text-muted);
  font-size: 1rem;
  margin: 0;
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: 0.05em;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
  padding: 2.5rem;
  max-width: 1400px;
  margin: 0 auto;
}

.card {
  display: flex;
  flex-direction: column;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.5rem;
  text-decoration: none;
  color: var(--text);
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.15s;
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

.card:hover {
  border-color: rgba(57,255,20,0.4);
  box-shadow: 0 0 30px rgba(57,255,20,0.08);
  transform: translateY(-2px);
}

.card:hover::before { transform: scaleX(1); }

.card-num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.card h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--accent);
  margin: 0 0 0.5rem;
}

.card p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin: 0 0 1rem;
  flex-grow: 1;
}

.card-meta {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-top: auto;
}

.card-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  padding: 0.2em 0.6em;
  border-radius: 12px;
  border: 1px solid var(--border);
  color: var(--text-muted);
}

.card-arrow {
  position: absolute;
  bottom: 1.2rem;
  right: 1.2rem;
  color: var(--accent);
  font-size: 1.1rem;
  opacity: 0;
  transition: opacity 0.2s, transform 0.2s;
  transform: translateX(-4px);
}
.card:hover .card-arrow { opacity: 1; transform: translateX(0); }

.landing-footer {
  text-align: center;
  padding: 2rem;
  color: var(--text-muted);
  font-size: 0.75rem;
  font-family: 'JetBrains Mono', monospace;
  border-top: 1px solid var(--border);
}