/* ─── ZTW26 × Critical Thinking — Slide Deck ─────────────────────────── */

@import url('https://fonts.googleapis.com/css2?family=Fira+Code:wght@300;400;500;600;700&family=Space+Mono:wght@400;700&display=swap');

:root {
  --bg-primary: #0a1628;
  --bg-secondary: #0f1f3a;
  --bg-card: #132240;
  --bg-input: #0b1a30;
  --bg-hover: #1a2d52;

  --critical-red: #ea1c24;
  --binary-blue: #6fcbf3;
  --ztw-blue: #0098d6;
  --cipher-gray: #cacaca;
  --stealth-gray: #808080;
  --bug-green: #69bb53;

  --text-primary: #ffffff;
  --text-secondary: #cacaca;

  --font-primary: 'Fira Code', monospace;
  --font-secondary: 'Space Mono', monospace;

  --radius: 8px;
  --radius-lg: 12px;
}

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

html, body {
  width: 100%; height: 100%;
  overflow: hidden;
  font-family: var(--font-primary);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
}

/* ─── Slide Container ─────────────────────────────────────────────────── */

.slide {
  position: absolute;
  inset: 0;
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 60px 80px 80px;
  opacity: 0;
  transform: translateY(12px);
}

.slide.active {
  display: flex;
  animation: slideIn 0.35s ease forwards;
}

@keyframes slideIn {
  to { opacity: 1; transform: translateY(0); }
}

/* ─── Layout Variants ─────────────────────────────────────────────────── */

.slide.layout-two-col .two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  width: 100%;
  max-width: 960px;
}

/* ─── Typography (conference scale) ───────────────────────────────────── */

.slide h1 {
  font-family: var(--font-secondary);
  font-size: 3.2rem;
  font-weight: 700;
  margin-bottom: 16px;
  background: linear-gradient(135deg, var(--binary-blue), var(--ztw-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.slide h2 {
  font-family: var(--font-secondary);
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.slide h3 {
  font-family: var(--font-primary);
  font-size: 1.3rem;
  color: var(--binary-blue);
  margin-bottom: 10px;
  margin-top: 18px;
}

.slide p, .slide li {
  font-size: 1.3rem;
  color: var(--cipher-gray);
  line-height: 1.7;
}

.slide ul, .slide ol {
  margin-left: 28px;
  margin-top: 8px;
  text-align: left;
}

.slide li {
  margin-bottom: 8px;
}

.slide strong {
  color: var(--text-primary);
}

/* ─── Badges (larger for presentation) ────────────────────────────────── */

.badge {
  display: inline-block;
  padding: 5px 16px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-server { background: rgba(0, 152, 214, 0.15); color: var(--ztw-blue); border: 1px solid rgba(0, 152, 214, 0.3); }
.badge-client { background: rgba(234, 28, 36, 0.12); color: var(--critical-red); border: 1px solid rgba(234, 28, 36, 0.3); }
.badge-role   { background: rgba(128, 128, 128, 0.2); color: var(--cipher-gray); border: 1px solid rgba(128, 128, 128, 0.3); }

.badge-group {
  display: flex;
  gap: 12px;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  margin: 12px 0;
}

/* ─── Code Blocks (larger for readability) ────────────────────────────── */

.code-block {
  background: #080e1a;
  border: 1px solid rgba(111, 203, 243, 0.1);
  border-radius: var(--radius);
  padding: 20px 28px;
  margin: 18px 0;
  overflow-x: auto;
  width: 100%;
  max-width: 860px;
  text-align: left;
}

.code-block-wide {
  max-width: 1100px;
}

.code-block-wide code {
  font-size: 0.95rem;
}

.code-block code {
  background: none;
  padding: 0;
  color: var(--cipher-gray);
  font-size: 1.1rem;
  white-space: pre;
  display: block;
  line-height: 1.8;
  font-family: var(--font-primary);
}

code {
  background: var(--bg-input);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 1.05rem;
  color: var(--binary-blue);
  font-family: var(--font-primary);
}

.highlight-red { color: var(--critical-red); }
.highlight-green { color: var(--bug-green); }
.highlight-blue { color: var(--binary-blue); }

/* ─── Title Slide (logos) ─────────────────────────────────────────────── */

.title-logos {
  display: flex;
  align-items: center;
  gap: 32px;
  margin-bottom: 40px;
}

.title-logos img {
  height: 80px;
  object-fit: contain;
  border-radius: var(--radius);
}

.title-logos .title-x {
  font-size: 2rem;
  color: var(--stealth-gray);
}

/* ─── Intro Slide ─────────────────────────────────────────────────────── */

.intro-avatar {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  border: 3px solid var(--ztw-blue);
  object-fit: cover;
  margin-bottom: 20px;
  box-shadow: 0 0 40px rgba(0, 152, 214, 0.25);
}

.intro-name {
  font-family: var(--font-secondary);
  font-size: 3.6rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.intro-handle {
  font-family: var(--font-primary);
  font-size: 1.2rem;
  color: var(--stealth-gray);
  margin-bottom: 24px;
}

.intro-headline {
  font-family: var(--font-secondary);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--binary-blue);
  margin-bottom: 24px;
}

.intro-tags {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 8px;
}

.intro-tag {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--bg-card);
  border: 1px solid rgba(111, 203, 243, 0.12);
  border-radius: var(--radius-lg);
  padding: 10px 20px;
  font-size: 1rem;
  color: var(--cipher-gray);
  font-weight: 500;
}

.intro-tag img {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  object-fit: contain;
}

.intro-tag-role {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--stealth-gray);
  margin-left: 2px;
}

/* ─── Network Diagram (code-based) ────────────────────────────────────── */

.net-diagram {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  margin: 24px 0;
  width: 100%;
  max-width: 900px;
}

.net-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  width: 100%;
}

.net-row > .net-node:first-child {
  position: relative;
}

.net-vertical-connector {
  display: flex;
  flex-direction: column;
  align-items: center;
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  margin-top: 8px;
}

.net-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  min-width: 130px;
}

.net-icon {
  font-size: 2.4rem;
  line-height: 1;
}

.net-label {
  font-family: var(--font-secondary);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-primary);
}

.net-arrow {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 0 6px;
  min-width: 120px;
}

.net-arrow-line {
  width: 100%;
  height: 2px;
  position: relative;
}

.net-arrow-line::after {
  content: '';
  position: absolute;
  right: -1px;
  top: -5px;
  border: 6px solid transparent;
}

.net-arrow-line.arrow-right {
  background: linear-gradient(90deg, var(--ztw-blue), var(--binary-blue));
}

.net-arrow-line.arrow-right::after {
  border-left-color: var(--binary-blue);
}

.net-arrow-line.arrow-left {
  background: linear-gradient(90deg, var(--bug-green), var(--bug-green));
}

.net-arrow-line.arrow-left::after {
  right: auto;
  left: -1px;
  border-right-color: var(--bug-green);
  border-left-color: transparent;
}

.net-arrow-label {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.net-arrow-label.req { color: var(--binary-blue); }
.net-arrow-label.res { color: var(--bug-green); }

.net-sublabel {
  font-size: 0.7rem;
  color: var(--stealth-gray);
}

/* ─── Types Cards ─────────────────────────────────────────────────────── */

.types-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  max-width: 900px;
  margin-top: 20px;
}

.type-card {
  background: var(--bg-card);
  border: 1px solid rgba(111, 203, 243, 0.1);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  text-align: left;
}

.type-card h3 {
  margin-top: 12px;
}

.type-card p {
  font-size: 1.1rem;
  color: var(--cipher-gray);
  margin-top: 8px;
}

.type-card .type-target {
  margin-top: 14px;
  font-size: 0.9rem;
  color: var(--stealth-gray);
}

.type-card .type-target strong {
  color: var(--cipher-gray);
}

/* ─── Flow Diagram (kept for starting points) ─────────────────────────── */

.flow {
  display: flex;
  align-items: center;
  gap: 0;
  flex-wrap: wrap;
  justify-content: center;
  margin: 28px 0;
}

.flow-step {
  background: var(--bg-card);
  border: 1px solid rgba(111, 203, 243, 0.15);
  border-radius: var(--radius-lg);
  padding: 18px 24px;
  font-size: 1.1rem;
  color: var(--text-primary);
  font-weight: 500;
  text-align: center;
  min-width: 140px;
}

.flow-arrow {
  font-size: 1.6rem;
  color: var(--ztw-blue);
  padding: 0 8px;
}

/* ─── Vuln Cards (two-column) ─────────────────────────────────────────── */

.vuln-col {
  display: flex;
  flex-direction: column;
}

.vuln-col h3 {
  font-family: var(--font-secondary);
  font-size: 1.5rem;
  margin-bottom: 20px;
}

.vuln-item {
  background: var(--bg-card);
  border: 1px solid rgba(111, 203, 243, 0.1);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  margin-bottom: 16px;
  text-align: left;
  flex: 1;
}

.vuln-item h4 {
  font-family: var(--font-secondary);
  font-size: 1.2rem;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.vuln-item p {
  font-size: 1rem;
  color: var(--stealth-gray);
}

/* ─── Definition List ─────────────────────────────────────────────────── */

.def-list {
  list-style: none;
  margin: 0;
  padding: 0;
  text-align: left;
  max-width: 800px;
}

.def-list li {
  margin-bottom: 18px;
  font-size: 1.25rem;
}

.def-term {
  color: var(--binary-blue);
  font-weight: 600;
}

/* ─── Starting Points ─────────────────────────────────────────────────── */

.starting-points {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
  max-width: 900px;
  margin-top: 20px;
}

.start-card {
  background: var(--bg-card);
  border: 1px solid rgba(111, 203, 243, 0.1);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  text-align: center;
}

.start-card .badge { margin-bottom: 16px; }

.start-card p {
  font-size: 1.15rem;
  color: var(--cipher-gray);
  margin-top: 8px;
}

/* ─── Lab Link (stylized URL) ─────────────────────────────────────────── */

.lab-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-top: 24px;
  padding: 14px 24px;
  background: var(--bg-card);
  border: 1px solid rgba(111, 203, 243, 0.2);
  border-radius: var(--radius-lg);
  text-decoration: none;
  transition: all 0.25s;
  max-width: 100%;
}

.lab-link:hover {
  border-color: var(--binary-blue);
  background: var(--bg-hover);
  text-decoration: none;
  box-shadow: 0 4px 24px rgba(111, 203, 243, 0.1);
}

.lab-link-label {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--ztw-blue);
  white-space: nowrap;
}

.lab-link-url {
  font-family: var(--font-primary);
  font-size: 1rem;
  color: var(--binary-blue);
  word-break: break-all;
}

.lab-link-arrow {
  color: var(--stealth-gray);
  font-size: 1.2rem;
  transition: transform 0.2s;
}

.lab-link:hover .lab-link-arrow {
  transform: translateX(4px);
  color: var(--binary-blue);
}

/* ─── Buttons ─────────────────────────────────────────────────────────── */

.btn {
  font-family: var(--font-primary);
  font-size: 1rem;
  padding: 12px 28px;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.2s;
  font-weight: 500;
  text-decoration: none;
  display: inline-block;
  margin-top: 20px;
}

.btn-primary {
  background: var(--ztw-blue);
  color: #fff;
}
.btn-primary:hover { background: #00adef; text-decoration: none; }

.btn-secondary {
  background: rgba(111, 203, 243, 0.1);
  color: var(--binary-blue);
  border: 1px solid rgba(111, 203, 243, 0.25);
}
.btn-secondary:hover { background: rgba(111, 203, 243, 0.2); text-decoration: none; }

/* ─── Slide Content Helpers ───────────────────────────────────────────── */

.slide-content {
  max-width: 860px;
  width: 100%;
}

.slide-content-wide {
  max-width: 1100px;
}

.example-box {
  background: var(--bg-secondary);
  border-left: 3px solid var(--ztw-blue);
  padding: 20px 28px;
  border-radius: 0 var(--radius) var(--radius) 0;
  margin: 20px 0;
  text-align: left;
}

.example-box p {
  font-size: 1.15rem;
}

/* ─── Caido Logo ──────────────────────────────────────────────────────── */

.caido-logo {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-lg);
  object-fit: contain;
  margin-bottom: 12px;
}

/* ─── Progress Bar ────────────────────────────────────────────────────── */

.progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--ztw-blue), var(--binary-blue));
  transition: width 0.3s ease;
  z-index: 200;
}

/* ─── Brand Watermark ─────────────────────────────────────────────────── */

.watermark {
  position: fixed;
  bottom: 20px;
  left: 32px;
  font-size: 0.75rem;
  opacity: 0.6;
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 8px;
  pointer-events: none;
}

.watermark .ztw-logo { font-family: var(--font-secondary); font-weight: 700; color: var(--ztw-blue); letter-spacing: 2px; }
.watermark .ztw-26 { color: var(--binary-blue); }
.watermark .cross { color: var(--stealth-gray); font-size: 0.85em; }
.watermark .ct-logo { font-family: var(--font-primary); color: var(--text-primary); font-weight: 400; }
.watermark .ct-gray { color: var(--stealth-gray); }
.watermark .ct-red { color: var(--critical-red); font-weight: 700; }
.watermark .ct-white { color: var(--text-primary); }
.watermark .ct-blue { color: var(--binary-blue); }

/* ─── Nav Controls ────────────────────────────────────────────────────── */

.slide-nav {
  position: fixed;
  bottom: 20px;
  right: 32px;
  display: flex;
  align-items: center;
  gap: 16px;
  z-index: 100;
}

.slide-counter {
  font-size: 0.85rem;
  color: var(--stealth-gray);
  font-family: var(--font-primary);
}

.nav-btn {
  background: rgba(111, 203, 243, 0.1);
  border: 1px solid rgba(111, 203, 243, 0.2);
  color: var(--binary-blue);
  width: 40px;
  height: 40px;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
  font-family: var(--font-primary);
}

.nav-btn:hover {
  background: rgba(111, 203, 243, 0.2);
  border-color: rgba(111, 203, 243, 0.4);
}

/* ─── Why List (for CSRF exploit) ─────────────────────────────────────── */

.why-list {
  list-style: none;
  padding: 0;
  margin-top: 16px;
  text-align: left;
}

.why-list li {
  position: relative;
  padding-left: 28px;
  margin-bottom: 10px;
}

.why-list li::before {
  content: '\2717';
  position: absolute;
  left: 0;
  color: var(--critical-red);
  font-weight: 700;
}

/* ─── Responsive (smaller screens) ────────────────────────────────────── */

@media (max-width: 900px) {
  .slide { padding: 50px 32px 70px; }
  .slide h1 { font-size: 2.2rem; }
  .slide h2 { font-size: 1.5rem; }
  .slide p, .slide li { font-size: 1.05rem; }
  .flow { gap: 0; }
  .flow-step { font-size: 0.9rem; padding: 12px 14px; min-width: 100px; }
  .flow-arrow { font-size: 1.2rem; }
  .starting-points, .types-grid { grid-template-columns: 1fr; }
  .slide.layout-two-col .two-col { grid-template-columns: 1fr; gap: 24px; }
  .intro-avatar { width: 100px; height: 100px; }
  .intro-name { font-size: 2.4rem; }
  .intro-headline { font-size: 1.2rem; }
  .net-arrow { min-width: 80px; }
  .net-node { min-width: 90px; }
  .net-icon { font-size: 1.8rem; }
  .title-logos img { height: 50px; }
}