/* ==========================================================================
   PERLITE OFFICIAL WEBSITE DESIGN SYSTEM (Obsidian Cyber-Minimalism)
   ========================================================================== */

:root {
  --bg-canvas: #090D16;
  --bg-surface: #0F1626;
  --bg-surface-elevated: #162035;
  --bg-surface-card: rgba(18, 26, 44, 0.7);
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-prominent: rgba(255, 255, 255, 0.16);

  --accent-emerald: #10B981;
  --accent-emerald-glow: rgba(16, 185, 129, 0.25);
  --accent-cyan: #06B6D4;
  --accent-cyan-glow: rgba(6, 182, 212, 0.25);
  --accent-violet: #8B5CF6;
  --accent-violet-glow: rgba(139, 92, 246, 0.25);

  --grad-business: linear-gradient(135deg, #10B981 0%, #06B6D4 100%);
  --grad-cto: linear-gradient(135deg, #A855F7 0%, #EC4899 100%);
  --grad-architect: linear-gradient(135deg, #06B6D4 0%, #3B82F6 100%);
  --grad-engineer: linear-gradient(135deg, #F59E0B 0%, #EF4444 100%);
  --grad-security: linear-gradient(135deg, #F43F5E 0%, #FB923C 100%);
  --grad-frontend: linear-gradient(135deg, #3B82F6 0%, #8B5CF6 100%);
  --grad-product: linear-gradient(135deg, #14B8A6 0%, #10B981 100%);
  --grad-devops: linear-gradient(135deg, #6366F1 0%, #A855F7 100%);

  --text-primary: #F8FAFC;
  --text-secondary: #94A3B8;
  --text-tertiary: #64748B;

  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-pill: 9999px;
  --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  font-family: var(--font-sans);
  background-color: var(--bg-canvas);
  color: var(--text-primary);
  line-height: 1.6;
}

body.perlite-body {
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  background-color: var(--bg-canvas);
}

/* Ambient Backdrop Glows */
.ambient-mesh {
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  filter: blur(140px);
  pointer-events: none;
  z-index: 0;
  opacity: 0.18;
}

.mesh-emerald { top: -150px; left: 20%; background: var(--accent-emerald); }
.mesh-violet { top: 350px; right: 10%; background: var(--accent-violet); }
.mesh-cyan { top: 900px; left: 5%; background: var(--accent-cyan); }

/* Navigation */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  background: rgba(9, 13, 22, 0.85);
  border-bottom: 1px solid var(--border-subtle);
}

.header-inner {
  max-width: 1240px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-group {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-primary);
}

.brand-logo-img {
  width: 32px;
  height: 32px;
  object-fit: contain;
  filter: drop-shadow(0 2px 8px rgba(52, 211, 153, 0.3));
  flex-shrink: 0;
}

.brand-title {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.brand-status-tag {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: var(--accent-emerald);
}

.nav-menu {
  display: flex;
  gap: 28px;
}

.nav-item {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition);
}

.nav-item:hover { color: var(--text-primary); }

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.control-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-pill);
  padding: 6px 12px;
  color: var(--text-secondary);
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.control-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
}

.btn-icon { font-size: 0.8rem; }

.nav-secondary-link {
  color: var(--text-tertiary);
  font-size: 0.85rem;
  font-family: var(--font-mono);
  text-decoration: none;
  transition: var(--transition);
}

.nav-secondary-link:hover { color: var(--accent-cyan); }

/* Buttons & Badges */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.9rem;
  padding: 10px 18px;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: var(--transition);
}

.btn-primary {
  background: linear-gradient(135deg, #10B981 0%, #059669 100%);
  color: #FFFFFF;
  box-shadow: 0 4px 16px rgba(16, 185, 129, 0.28);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 22px rgba(16, 185, 129, 0.4);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-prominent);
  color: var(--text-primary);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
}

.btn-large {
  padding: 14px 26px;
  font-size: 1rem;
  border-radius: var(--radius-lg);
}

.btn-block { width: 100%; }



.pulse-emerald-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-emerald);
  box-shadow: 0 0 10px var(--accent-emerald);
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

.kicker-tag {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-emerald);
  margin-bottom: 12px;
}

/* Hero Section & Role Rotator */
.hero-section {
  position: relative;
  z-index: 1;
  padding: 40px 24px 44px;
  text-align: center;
}

.hero-container {
  max-width: 1140px;
  margin: 0 auto;
}

.hero-headline {
  font-size: clamp(1.75rem, 3.4vw, 2.85rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.25;
  margin: 0 auto 14px;
  display: flex;
  flex-wrap: nowrap;
  white-space: nowrap;
  align-items: center;
  justify-content: center;
  gap: 0.28em;
  min-height: 1.3em;
}

@media (max-width: 820px) {
  .hero-headline {
    flex-wrap: wrap;
    white-space: normal;
    font-size: clamp(1.5rem, 5.5vw, 2.2rem);
  }
}

.hero-headline-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  white-space: nowrap;
}

.hero-headline-logo {
  width: 46px;
  height: 46px;
  object-fit: contain;
  filter: drop-shadow(0 4px 18px rgba(52, 211, 153, 0.45));
}

.hero-brand-name {
  color: #FFFFFF;
}

.hero-title-prefix {
  white-space: nowrap;
  color: var(--text-secondary);
}

.hero-tagline-statement {
  font-size: clamp(1.05rem, 1.8vw, 1.22rem);
  font-weight: 500;
  color: #CBD5E1;
  max-width: 840px;
  margin: 0 auto 20px;
  line-height: 1.55;
  letter-spacing: -0.01em;
}

.headline-rotator-wrapper {
  display: inline-flex;
  position: relative;
  vertical-align: bottom;
  height: 1.3em;
  line-height: 1.3em;
  overflow: hidden;
  white-space: nowrap;
  cursor: pointer;
  border-radius: 6px;
  mask-image: linear-gradient(to bottom, transparent 0%, black 18%, black 82%, transparent 100%);
  -webkit-mask-image: linear-gradient(to bottom, transparent 0%, black 18%, black 82%, transparent 100%);
  transition: opacity 0.2s ease, filter 0.2s ease;
}

.headline-rotator-wrapper:hover {
  opacity: 0.92;
  filter: brightness(1.08);
}

.headline-rotator-wrapper:focus-visible {
  outline: 2px solid var(--accent-emerald);
  outline-offset: 4px;
}

.slot-reel-strip {
  display: flex;
  flex-direction: column;
  will-change: transform;
  transform: translateY(0);
}

.slot-item {
  height: 1.3em;
  line-height: 1.3em;
  display: inline-flex;
  align-items: center;
  white-space: nowrap;
  font-weight: 800;
}

.slot-text,
.slot-arrow {
  background-image: var(--item-grad);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.slot-text {
  white-space: nowrap;
}

.slot-arrow {
  display: inline-flex;
  align-items: center;
  margin-left: 0.22em;
  font-size: 0.92em;
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: transform;
}

.headline-rotator-wrapper:hover .slot-arrow {
  transform: translateX(6px);
}

.gradient-business { --item-grad: var(--grad-business); }
.gradient-cto { --item-grad: var(--grad-cto); }
.gradient-architect { --item-grad: var(--grad-architect); }
.gradient-engineer { --item-grad: var(--grad-engineer); }
.gradient-security { --item-grad: var(--grad-security); }
.gradient-frontend { --item-grad: var(--grad-frontend); }
.gradient-product { --item-grad: var(--grad-product); }
.gradient-devops { --item-grad: var(--grad-devops); }

.hero-lead {
  font-size: clamp(1.08rem, 2vw, 1.26rem);
  font-weight: 600;
  color: #F8FAFC;
  max-width: 800px;
  margin: 0 auto 12px;
  line-height: 1.5;
  min-height: 2.2em;
  transition: opacity 0.3s ease, transform 0.3s ease;
}
.hero-lead.fade-out { opacity: 0; transform: translateY(6px); }
.hero-lead.fade-in { opacity: 1; transform: translateY(0); }

.hero-cta-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 14px;
  margin-bottom: 50px;
  flex-wrap: wrap;
}

.hero-partner-btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 13px 26px;
  border-radius: var(--radius-pill);
  background: rgba(15, 23, 42, 0.72);
  border: 1px solid rgba(52, 211, 153, 0.42);
  color: #F8FAFC;
  font-size: 0.96rem;
  font-weight: 600;
  text-decoration: none;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 4px 22px rgba(16, 185, 129, 0.15);
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  cursor: pointer;
}
.hero-partner-btn:hover {
  background: rgba(15, 23, 42, 0.88);
  border-color: #34D399;
  transform: translateY(-2px);
  box-shadow: 0 6px 30px rgba(16, 185, 129, 0.32);
  color: #FFFFFF;
}
.partner-btn-label { color: #F8FAFC; }
.partner-btn-sep { color: rgba(255, 255, 255, 0.3); }
.partner-btn-action { color: #34D399; font-weight: 700; }
.hero-partner-btn svg { color: #34D399; transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1); }
.hero-partner-btn:hover svg { transform: translateX(4px); }

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  max-width: 960px;
  margin: 0 auto;
}

.metric-card {
  padding: 18px 16px;
  background: var(--bg-surface-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  text-align: center;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.metric-card:hover {
  transform: translateY(-2px);
  border-color: rgba(6, 182, 212, 0.3);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.metric-value {
  display: block;
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--text-primary);
  font-family: var(--font-sans);
  letter-spacing: -0.03em;
}

.metric-label {
  display: block;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--accent-cyan);
  margin-top: 6px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.metric-subtext {
  display: block;
  font-size: 0.74rem;
  color: var(--text-tertiary);
  margin-top: 5px;
  line-height: 1.35;
}

/* Section Containers */
.section-container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 72px 24px;
  position: relative;
  z-index: 1;
}

.section-header { margin-bottom: 36px; }
.section-header.text-center { text-align: center; }

.section-heading {
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  margin-bottom: 12px;
}

.section-subtext {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 680px;
}

.section-header.text-center .section-subtext { margin: 0 auto; }

/* Pipeline 3-Stage Workstation */
.pipeline-workstation {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
}

.pipeline-stepper-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--border-subtle);
  flex-wrap: wrap;
  gap: 16px;
}

.step-indicators {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 1;
}

.stage-step-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  border: 1px solid var(--border-subtle);
  padding: 8px 14px;
  border-radius: var(--radius-pill);
  color: var(--text-secondary);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.stage-step-btn.active {
  background: rgba(16, 185, 129, 0.12);
  border-color: var(--accent-emerald);
  color: var(--accent-emerald);
}

.step-num {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.72rem;
}

.stage-step-btn.active .step-num {
  background: var(--accent-emerald);
  color: #000;
}

.step-conduit {
  flex: 1;
  height: 2px;
  background: rgba(255, 255, 255, 0.08);
  max-width: 80px;
}

.conduit-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent-emerald), var(--accent-cyan));
  transition: width 0.3s ease;
}

.conduit-fill.pulsing { width: 100%; box-shadow: 0 0 10px var(--accent-emerald); }

.playback-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  cursor: pointer;
  transition: var(--transition);
}

.playback-btn:hover { background: rgba(255, 255, 255, 0.08); color: var(--text-primary); }

.stages-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.stage-pane {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}

.stage-pane.active-stage {
  border-color: rgba(16, 185, 129, 0.6);
  box-shadow: 0 0 24px rgba(16, 185, 129, 0.15);
}

.pane-header {
  padding: 12px 16px;
  background: rgba(0, 0, 0, 0.2);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  gap: 8px;
}

.pane-dot { width: 8px; height: 8px; border-radius: 50%; }
.pane-dot.green { background: var(--accent-emerald); }
.pane-dot.purple { background: var(--accent-violet); }
.pane-dot.cyan { background: var(--accent-cyan); }

.pane-title { font-size: 0.82rem; font-weight: 600; color: var(--text-primary); flex: 1; }
.pane-badge {
  font-size: 0.7rem;
  font-family: var(--font-mono);
  color: var(--text-tertiary);
  background: rgba(255, 255, 255, 0.05);
  padding: 2px 6px;
  border-radius: 4px;
}

.pane-content {
  padding: 16px;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.mock-canvas-card {
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 14px;
}

.canvas-entity-header { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.entity-name { display: block; font-weight: 700; font-size: 0.95rem; }
.entity-sub { display: block; font-size: 0.72rem; color: var(--text-tertiary); font-family: var(--font-mono); }

.canvas-attributes-list { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; }
.attr-row {
  display: flex;
  justify-content: space-between;
  padding: 4px 8px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.02);
  font-size: 0.78rem;
  font-family: var(--font-mono);
}

.attr-key { color: var(--text-secondary); }
.attr-type { color: var(--accent-cyan); }

.attr-row.highlight-pulse {
  border: 1px solid var(--accent-emerald);
  background: rgba(16, 185, 129, 0.08);
}

.canvas-traits-block { margin-top: 10px; }
.trait-label { font-size: 0.72rem; color: var(--text-tertiary); display: block; margin-bottom: 6px; }
.traits-chips { display: flex; gap: 6px; flex-wrap: wrap; }
.trait-chip {
  font-size: 0.7rem;
  font-family: var(--font-mono);
  padding: 3px 8px;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
}

.trait-chip.active-trait {
  background: rgba(16, 185, 129, 0.15);
  border-color: var(--accent-emerald);
  color: var(--accent-emerald);
  font-weight: 600;
}

.canvas-footer-status,
.compiler-footer-status,
.runtime-footer-status {
  margin-top: 16px;
  padding-top: 10px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  justify-content: space-between;
  font-size: 0.72rem;
  color: var(--accent-emerald);
  font-family: var(--font-mono);
}

.code-pane { background: #06090F; }
.code-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 10px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  padding-bottom: 6px;
}

.code-tab { font-size: 0.75rem; font-family: var(--font-mono); color: var(--text-tertiary); padding: 2px 6px; border-radius: 4px; }
.code-tab.active { color: var(--accent-violet); background: rgba(139, 92, 246, 0.1); }

.code-editor-view {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  line-height: 1.5;
  color: #E2E8F0;
  overflow-x: auto;
}

.token-kw { color: #F472B6; }
.token-fn { color: #60A5FA; }
.token-type { color: #34D399; }
.token-str { color: #FBBF24; }
.token-comment { color: #64748B; font-style: italic; }

.code-injected-block {
  display: block;
  background: rgba(16, 185, 129, 0.12);
  border-left: 2px solid var(--accent-emerald);
  padding: 4px 6px;
  margin: 4px 0;
  border-radius: 2px;
  transition: var(--transition);
}

.api-request-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(0, 0, 0, 0.3);
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  margin-bottom: 12px;
}

.http-verb { font-weight: 700; color: var(--accent-emerald); }
.endpoint-url { color: var(--text-secondary); flex: 1; }
.status-pill { padding: 2px 6px; border-radius: 4px; font-size: 0.68rem; font-weight: 600; }
.status-ok { background: rgba(16, 185, 129, 0.15); color: var(--accent-emerald); }

.runtime-table-view {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  margin-bottom: 14px;
}

.table-header-row,
.table-data-row {
  display: grid;
  grid-template-columns: 1fr 1.5fr 1.2fr 1fr;
  padding: 6px 8px;
  border-radius: 4px;
}

.table-header-row { background: rgba(255, 255, 255, 0.03); color: var(--text-tertiary); font-weight: 600; }
.table-data-row { background: rgba(255, 255, 255, 0.02); color: var(--text-secondary); }
.table-data-row.active-row { background: rgba(6, 182, 212, 0.08); border: 1px solid rgba(6, 182, 212, 0.2); }
.settle-badge { color: var(--accent-emerald); }
.settle-badge.pending { color: #FBBF24; }

.runtime-metric-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  background: rgba(0, 0, 0, 0.2);
  padding: 10px;
  border-radius: var(--radius-sm);
}

.rm-num { display: block; font-size: 1.1rem; font-weight: 700; font-family: var(--font-mono); color: var(--text-primary); }

/* Note: Comparison Table, Role Showcase, Product Box, Pillars, CTA, Modal & Responsive Layout are in showcase.css */