:root {
  /* BYOND BRAND IDENTITY PALETTE — Precision Cobalt & Obsidian Slate */
  --byond-cobalt: #0F52BA;
  --byond-cobalt-hover: #0A3E8F;
  --byond-cobalt-light: #E8F0FE;
  --byond-cobalt-border: #BFDBFE;

  --byond-obsidian: #0F172A;
  --byond-slate: #1E293B;
  --byond-slate-muted: #475569;
  --byond-slate-subtle: #64748B;

  --byond-teal: #0D9488;
  --byond-teal-light: #CCFBF1;
  --byond-teal-dark: #115E59;

  --byond-amber: #D97706;
  --byond-amber-light: #FEF3C7;

  --byond-surface-bg: #F9FAFB;
  --byond-surface-card: #FFFFFF;
  --byond-surface-tonal: #F1F5F9;
  --byond-border: #E2E8F0;
  --byond-border-strong: #CBD5E1;

  --byond-shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.05);
  --byond-shadow-md: 0 4px 14px rgba(15, 23, 42, 0.07), 0 1px 3px rgba(15, 23, 42, 0.04);
  --byond-shadow-lg: 0 16px 36px rgba(15, 23, 42, 0.12), 0 4px 10px rgba(15, 23, 42, 0.05);
  --byond-shadow-cobalt: 0 6px 20px rgba(15, 82, 186, 0.25);

  --radius-xs: 6px;
  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-pill: 9999px;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--byond-surface-bg);
  color: var(--byond-obsidian);
  line-height: 1.5;
  font-size: 14px;
  font-variant-numeric: tabular-nums;
  overflow-x: hidden;
}

h1, h2, h3, h4, .brand-font {
  font-family: 'Plus Jakarta Sans', 'Inter', sans-serif;
  letter-spacing: -0.025em;
}

code, pre, .mono-font {
  font-family: 'JetBrains Mono', 'Roboto Mono', monospace;
}

/* ==========================================================================
   1. BESPOKE BYOND BUTTON SYSTEM & MICRO-INTERACTIONS
   ========================================================================== */

.btn-byond {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 9px 18px;
  border-radius: var(--radius-pill);
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 700;
  font-size: 13px;
  letter-spacing: -0.01em;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.18s cubic-bezier(0.16, 1, 0.3, 1);
  user-select: none;
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

.btn-byond:active {
  transform: scale(0.97);
}

/* Primary Cobalt Button */
.btn-byond-primary {
  background: var(--byond-cobalt);
  color: #FFFFFF;
  box-shadow: 0 2px 6px rgba(15, 82, 186, 0.28);
}

.btn-byond-primary:hover {
  background: var(--byond-cobalt-hover);
  box-shadow: var(--byond-shadow-cobalt);
  transform: translateY(-1px);
}

/* Signature AI Spark Button (with vector shimmer) */
.btn-byond-ai {
  background: linear-gradient(135deg, #0F172A 0%, #0F52BA 100%);
  color: #FFFFFF;
  box-shadow: 0 4px 14px rgba(15, 82, 186, 0.32);
  border: 1px solid rgba(255, 255, 255, 0.14);
}

.btn-byond-ai:hover {
  background: linear-gradient(135deg, #1E293B 0%, #1D4ED8 100%);
  box-shadow: 0 6px 22px rgba(15, 82, 186, 0.42);
  transform: translateY(-1px);
}

.btn-byond-ai .ai-vector-icon {
  transition: transform 0.35s ease;
}

.btn-byond-ai:hover .ai-vector-icon {
  transform: rotate(45deg) scale(1.12);
}

/* Obsidian Dark Button */
.btn-byond-dark {
  background: var(--byond-obsidian);
  color: #FFFFFF;
}

.btn-byond-dark:hover {
  background: var(--byond-slate);
  transform: translateY(-1px);
}

/* Tonal Cobalt Button */
.btn-byond-tonal {
  background: var(--byond-cobalt-light);
  color: var(--byond-cobalt);
  border-color: var(--byond-cobalt-border);
}

.btn-byond-tonal:hover {
  background: #DBEAFE;
}

/* Outlined Architectural Button */
.btn-byond-outlined {
  background: var(--byond-surface-card);
  color: var(--byond-obsidian);
  border: 1px solid var(--byond-border-strong);
  box-shadow: var(--byond-shadow-sm);
}

.btn-byond-outlined:hover {
  border-color: var(--byond-cobalt);
  color: var(--byond-cobalt);
  background: #F8FAFC;
}

/* Command Bar Trigger Button (⌘K) */
.btn-byond-cmd {
  background: var(--byond-surface-tonal);
  color: var(--byond-slate-muted);
  border: 1px solid var(--byond-border-strong);
  padding: 7px 14px;
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: 12.5px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  transition: all 0.18s ease;
}

.btn-byond-cmd:hover {
  border-color: var(--byond-cobalt);
  background: var(--byond-surface-card);
  color: var(--byond-obsidian);
  box-shadow: 0 0 0 3px rgba(15, 82, 186, 0.12);
}

.kbd-badge {
  background: var(--byond-surface-card);
  border: 1px solid var(--byond-border-strong);
  border-radius: 5px;
  padding: 1px 6px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 700;
  color: var(--byond-obsidian);
}

/* ==========================================================================
   2. STICKY GLOBAL NAVIGATION BAR (3-EXPERIENCE SWITCHER)
   ========================================================================== */

.global-topbar {
  position: sticky;
  top: 0;
  z-index: 200;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--byond-border);
  padding: 10px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.byond-logo-lockup {
  display: flex;
  align-items: center;
  gap: 11px;
  cursor: pointer;
  text-decoration: none;
}

.byond-svg-mark {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
}

.byond-wordmark {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 800;
  font-size: 21px;
  letter-spacing: -0.04em;
  color: var(--byond-obsidian);
}

.byond-domain-pill {
  font-size: 11px;
  font-weight: 700;
  background: var(--byond-obsidian);
  color: #FFFFFF;
  padding: 2px 8px;
  border-radius: 6px;
  letter-spacing: 0.02em;
}

/* Experience Mode Switcher Tabs */
.experience-switcher {
  display: flex;
  align-items: center;
  background: var(--byond-surface-tonal);
  padding: 4px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--byond-border);
}

.exp-tab {
  padding: 7px 16px;
  border-radius: var(--radius-pill);
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 700;
  font-size: 12.5px;
  border: none;
  background: transparent;
  color: var(--byond-slate-muted);
  cursor: pointer;
  transition: all 0.18s ease;
  display: flex;
  align-items: center;
  gap: 7px;
}

.exp-tab:hover {
  color: var(--byond-obsidian);
}

.exp-tab.active {
  background: var(--byond-surface-card);
  color: var(--byond-cobalt);
  box-shadow: var(--byond-shadow-sm);
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* View Containers */
.experience-view {
  display: none;
}

.experience-view.active {
  display: block;
}

/* ==========================================================================
   3. EXPERIENCE 1: PROMOTIONAL WEBSITE (byond.ai)
   ========================================================================== */

.marketing-hero {
  max-width: 1240px;
  margin: 0 auto;
  padding: 56px 28px 48px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 44px;
  align-items: center;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--byond-cobalt-light);
  color: var(--byond-cobalt);
  border: 1px solid var(--byond-cobalt-border);
  padding: 5px 14px;
  border-radius: var(--radius-pill);
  font-weight: 700;
  font-size: 12px;
  margin-bottom: 20px;
}

.hero-title {
  font-size: 46px;
  font-weight: 800;
  line-height: 1.12;
  color: var(--byond-obsidian);
  margin-bottom: 20px;
}

.hero-title span {
  color: var(--byond-cobalt);
}

.hero-lead {
  font-size: 17px;
  color: var(--byond-slate-muted);
  line-height: 1.6;
  margin-bottom: 28px;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.hero-trust-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  padding-top: 24px;
  border-top: 1px solid var(--byond-border);
}

.trust-stat-num {
  font-size: 24px;
  font-weight: 800;
  color: var(--byond-obsidian);
}

.trust-stat-label {
  font-size: 12px;
  color: var(--byond-slate-muted);
}

.hero-visual-frame {
  background: var(--byond-surface-card);
  border: 1px solid var(--byond-border-strong);
  border-radius: var(--radius-lg);
  padding: 14px;
  box-shadow: var(--byond-shadow-lg);
}

.hero-visual-img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  display: block;
}

/* Consolidation Section (Replaces 4 Tools) */
.marketing-section {
  max-width: 1240px;
  margin: 0 auto;
  padding: 52px 28px;
  border-top: 1px solid var(--byond-border);
}

.section-heading-center {
  text-align: center;
  max-width: 740px;
  margin: 0 auto 40px;
}

.section-heading-center h2 {
  font-size: 32px;
  font-weight: 800;
  margin-bottom: 12px;
}

.replace-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.replace-card {
  background: var(--byond-surface-card);
  border: 1px solid var(--byond-border);
  border-radius: var(--radius-md);
  padding: 22px;
  box-shadow: var(--byond-shadow-sm);
  transition: all 0.2s ease;
}

.replace-card:hover {
  border-color: var(--byond-cobalt);
  box-shadow: var(--byond-shadow-md);
  transform: translateY(-2px);
}

.legacy-tag {
  font-size: 11px;
  font-weight: 700;
  color: #B91C1C;
  background: #FEE2E2;
  padding: 3px 9px;
  border-radius: 6px;
  display: inline-block;
  margin-bottom: 10px;
}

/* Interactive ROI & Margin Calculator */
.roi-calculator-box {
  background: linear-gradient(135deg, #0F172A 0%, #1E293B 100%);
  color: #FFFFFF;
  border-radius: var(--radius-lg);
  padding: 36px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
  align-items: center;
  box-shadow: var(--byond-shadow-lg);
}

/* ==========================================================================
   4. EXPERIENCE 2: BRAND IDENTITY & DESIGN SYSTEM KIT
   ========================================================================== */

.brandkit-container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 40px 28px;
}

.brand-grid-2col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 32px;
}

.brand-showcase-card {
  background: var(--byond-surface-card);
  border: 1px solid var(--byond-border);
  border-radius: var(--radius-md);
  padding: 26px;
  box-shadow: var(--byond-shadow-sm);
}

.logo-variants-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 16px;
}

.logo-variant-box {
  padding: 24px 16px;
  border-radius: var(--radius-sm);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border: 1px solid var(--byond-border);
}

.swatch-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-top: 16px;
}

.color-swatch {
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--byond-border);
  cursor: pointer;
  transition: transform 0.15s ease;
}

.color-swatch:hover {
  transform: translateY(-2px);
}

.swatch-color {
  height: 76px;
}

.swatch-info {
  padding: 10px 12px;
  background: var(--byond-surface-card);
  font-size: 12px;
}

/* ==========================================================================
   5. EXPERIENCE 3: BYOND OS SAAS APP (HUBSPOT AI CRM + ATS + ERP)
   ========================================================================== */

.saas-subbar {
  background: var(--byond-obsidian);
  color: #FFFFFF;
  padding: 8px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  gap: 14px;
  flex-wrap: wrap;
}

.saas-subbar-left {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

.saas-shell {
  display: grid;
  grid-template-columns: 235px 1fr 440px;
  min-height: calc(100vh - 108px);
}

.saas-shell.consultant-view-active {
  grid-template-columns: 1fr;
}

.saas-nav-rail {
  background: var(--byond-surface-tonal);
  border-right: 1px solid var(--byond-border);
  padding: 18px 12px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.saas-module-btn {
  display: flex;
  align-items: center;
  gap: 11px;
  width: 100%;
  text-align: left;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  border: none;
  background: transparent;
  color: var(--byond-slate-muted);
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 600;
  font-size: 13px;
  cursor: pointer;
  transition: all 0.15s ease;
  margin-bottom: 4px;
}

.saas-module-btn:hover {
  background: #E2E8F0;
  color: var(--byond-obsidian);
}

.saas-module-btn.active {
  background: var(--byond-cobalt);
  color: #FFFFFF;
  font-weight: 700;
  box-shadow: 0 2px 8px rgba(15, 82, 186, 0.25);
}

.saas-center-stage {
  padding: 22px 26px;
  overflow-y: auto;
  max-height: calc(100vh - 108px);
}

.saas-right-drawer {
  background: var(--byond-surface-card);
  border-left: 1px solid var(--byond-border);
  padding: 22px;
  overflow-y: auto;
  max-height: calc(100vh - 108px);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* HubSpot-Grade CRM Kanban & Call Intelligence */
.crm-pipeline-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-top: 16px;
}

.kanban-col {
  background: var(--byond-surface-tonal);
  border: 1px solid var(--byond-border);
  border-radius: var(--radius-sm);
  padding: 12px;
}

.kanban-col-header {
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: 10px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.deal-card {
  background: var(--byond-surface-card);
  border: 1px solid var(--byond-border-strong);
  border-radius: var(--radius-xs);
  padding: 12px;
  margin-bottom: 10px;
  cursor: pointer;
  transition: all 0.16s ease;
  box-shadow: var(--byond-shadow-sm);
}

.deal-card:hover, .deal-card.selected {
  border-color: var(--byond-cobalt);
  box-shadow: var(--byond-shadow-md);
  transform: translateY(-1px);
}

/* Universal Migration Cards */
.migration-sources-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 16px;
}

.migrator-card {
  background: var(--byond-surface-card);
  border: 1.5px solid var(--byond-border-strong);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 14px;
}

.migrator-card.connected {
  border-color: var(--byond-teal);
  background: #F0FDFA;
}

/* Modal Backdrop */
.byond-modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.55);
  backdrop-filter: blur(4px);
  z-index: 999;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.byond-modal-backdrop.open {
  display: flex;
}

.byond-modal-dialog {
  background: var(--byond-surface-card);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 760px;
  box-shadow: var(--byond-shadow-lg);
  border: 1px solid var(--byond-border-strong);
  overflow: hidden;
}

@media (max-width: 1180px) {
  .marketing-hero, .roi-calculator-box, .brand-grid-2col {
    grid-template-columns: 1fr;
  }
  .replace-grid, .crm-pipeline-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .saas-shell {
    grid-template-columns: 210px 1fr;
  }
  .saas-right-drawer {
    grid-column: 1 / -1;
  }
}