/* ==========================================================================
   PII Masking & Zero-Trust AI Presentation Theme (Impress.js)
   Nimblersoft Dark & Agentic Aesthetic
   ========================================================================== */

:root {
  --bg-color: #0b0f19;
  --bg-gradient: radial-gradient(circle at 50% 20%, #151e32 0%, #080c14 100%);
  --card-bg: rgba(18, 26, 44, 0.85);
  --card-border: rgba(45, 62, 98, 0.5);
  --card-border-glow: rgba(0, 242, 254, 0.3);
  --accent-cyan: #00f2fe;
  --accent-teal: #10b981;
  --accent-purple: #a855f7;
  --accent-orange: #f97316;
  --accent-yellow: #f5bb16;
  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --code-bg: #070a11;
  --font-display: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'SFMono-Regular', Menlo, Monaco, Consolas, monospace;
}

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

body {
  font-family: var(--font-body);
  background-color: var(--bg-color);
  background: var(--bg-gradient);
  color: var(--text-main);
  min-height: 100vh;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Background canvas glow */
.matrix-grid {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-image: 
    linear-gradient(to right, rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 50px 50px;
  pointer-events: none;
  z-index: 0;
}

/* Top bar nav */
.top-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 60px;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(11, 15, 25, 0.7);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  z-index: 1000;
}

.top-bar .brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--text-main);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.1rem;
}

.top-bar .badge {
  background: rgba(0, 242, 254, 0.12);
  border: 1px solid rgba(0, 242, 254, 0.4);
  color: var(--accent-cyan);
  font-size: 0.75rem;
  padding: 0.2rem 0.6rem;
  border-radius: 9999px;
  font-family: var(--font-mono);
  font-weight: 600;
}

.top-bar .actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.btn-nav {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: var(--text-main);
  padding: 0.4rem 0.9rem;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.btn-nav:hover {
  background: rgba(0, 242, 254, 0.15);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  transform: translateY(-1px);
}

/* Slide container styling */
.step {
  width: 1080px;
  height: 680px;
  padding: 45px 55px;
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--card-border);
  border-radius: 24px;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.5), 0 0 40px rgba(0, 242, 254, 0.03);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  opacity: 0.2;
  transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.2, 0.9, 0.3, 1.1), box-shadow 0.5s ease;
  position: relative;
  overflow: hidden;
}

.step:before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-purple), var(--accent-teal));
  opacity: 0.8;
}

.step.active {
  opacity: 1;
  border-color: var(--card-border-glow);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.65), 0 0 50px rgba(0, 242, 254, 0.15);
}

/* Typography */
h1, h2, h3 {
  font-family: var(--font-display);
  letter-spacing: -0.03em;
}

.slide-header {
  margin-bottom: 1.5rem;
}

.slide-kicker {
  color: var(--accent-cyan);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
  font-family: var(--font-mono);
}

.slide-kicker .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-cyan);
  box-shadow: 0 0 10px var(--accent-cyan);
}

.slide-title {
  font-size: 2.3rem;
  font-weight: 800;
  line-height: 1.15;
  background: linear-gradient(135deg, #ffffff 40%, #cbd5e1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.slide-subtitle {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin-top: 0.4rem;
  font-weight: 400;
}

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

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: center;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

/* Cards & Callouts */
.feature-box {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  padding: 1.5rem;
  transition: all 0.3s ease;
}

.feature-box:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(0, 242, 254, 0.4);
  transform: translateY(-2px);
}

.feature-box h4 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.feature-box p {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.55;
}

.danger-box {
  background: rgba(239, 68, 68, 0.06);
  border: 1px solid rgba(239, 68, 68, 0.25);
  border-radius: 16px;
  padding: 1.5rem;
}

.danger-box h4 {
  color: #f87171;
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
}

.success-box {
  background: rgba(16, 185, 129, 0.06);
  border: 1px solid rgba(16, 185, 129, 0.25);
  border-radius: 16px;
  padding: 1.5rem;
}

.success-box h4 {
  color: var(--accent-teal);
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
}

/* Code terminal preview */
.code-window {
  background: var(--code-bg);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 14px;
  overflow: hidden;
  font-family: var(--font-mono);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

.code-header {
  background: rgba(255, 255, 255, 0.04);
  padding: 0.5rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  font-size: 0.75rem;
  color: var(--text-dim);
}

.code-dots {
  display: flex;
  gap: 6px;
}

.code-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.dot-red { background: #ef4444; }
.dot-yellow { background: #f59e0b; }
.dot-green { background: #10b981; }

.code-content {
  padding: 1.2rem;
  font-size: 0.86rem;
  line-height: 1.6;
  color: #e2e8f0;
  overflow-x: auto;
}

.code-keyword { color: #f43f5e; font-weight: 600; }
.code-fn { color: #38bdf8; }
.code-str { color: #34d399; }
.code-token { color: #f59e0b; font-weight: 700; background: rgba(245, 158, 11, 0.15); padding: 1px 4px; border-radius: 4px; }
.code-comment { color: #64748b; font-style: italic; }

/* Visual architecture diagram */
.arch-diagram {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.5rem;
  background: rgba(0, 0, 0, 0.25);
  border: 1px dashed rgba(255, 255, 255, 0.12);
  border-radius: 16px;
}

.arch-node {
  flex: 1;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: 1.2rem 1rem;
  text-align: center;
}

.arch-node.highlight {
  border-color: var(--accent-cyan);
  background: rgba(0, 242, 254, 0.08);
  box-shadow: 0 0 25px rgba(0, 242, 254, 0.15);
}

.arch-node.security {
  border-color: var(--accent-teal);
  background: rgba(16, 185, 129, 0.08);
}

.arch-arrow {
  color: var(--accent-cyan);
  font-size: 1.5rem;
  font-weight: 900;
  flex: 0 0 auto;
}

/* Slide footer */
.slide-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  font-size: 0.8rem;
  color: var(--text-dim);
}

.slide-footer span {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

/* Big Title Slide */
.title-slide {
  text-align: center;
  justify-content: center;
  align-items: center;
  padding: 60px;
}

.title-slide .hero-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(245, 187, 22, 0.1);
  border: 1px solid rgba(245, 187, 22, 0.35);
  color: var(--accent-yellow);
  padding: 0.35rem 1rem;
  border-radius: 9999px;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1.5rem;
}

.title-slide h1 {
  font-size: 3.2rem;
  font-weight: 900;
  line-height: 1.1;
  max-width: 900px;
  margin: 0 auto 1.5rem;
  background: linear-gradient(135deg, #ffffff 0%, #e2e8f0 50%, var(--accent-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.title-slide .speaker-info {
  margin-top: 2rem;
  display: flex;
  align-items: center;
  gap: 1.2rem;
}

.speaker-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  border: 2px solid var(--accent-cyan);
  box-shadow: 0 0 20px rgba(0, 242, 254, 0.3);
  object-fit: cover;
}

.speaker-meta {
  text-align: left;
}

.speaker-meta strong {
  display: block;
  font-size: 1.2rem;
  color: #fff;
}

.speaker-meta span {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* Bottom Controls */
.bottom-controls {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(15, 23, 42, 0.8);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 9999px;
  padding: 0.4rem 0.8rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  z-index: 1000;
}

.btn-ctrl {
  background: transparent;
  border: none;
  color: var(--text-muted);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: grid;
  place-content: center;
  cursor: pointer;
  font-size: 1.1rem;
  transition: all 0.2s ease;
}

.btn-ctrl:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
}

.ctrl-hint {
  font-size: 0.75rem;
  color: var(--text-dim);
  font-family: var(--font-mono);
  padding: 0 0.5rem;
}

/* Overview slide (special transparent look) */
#overview.step {
  background: transparent;
  border: none;
  box-shadow: none;
  pointer-events: none;
  padding: 0;
}
#overview.step:before { display: none; }

/* When in Overview mode, illuminate all slides in the 3D space */
body.impress-on-overview .step:not(#overview),
.impress-on-overview .step:not(#overview) {
  opacity: 0.9 !important;
  pointer-events: auto !important;
  cursor: pointer;
}

body.impress-on-overview .step:not(#overview):hover {
  transform: scale(1.05) !important;
  border-color: var(--accent-cyan) !important;
  box-shadow: 0 0 40px rgba(0, 242, 254, 0.4) !important;
}