/* ==========================================================================
   JetUP Trading & Investment Guide - Strictly Pure Vanilla CSS
   Handcrafted CSS without Tailwind or preprocessors.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. CSS Custom Properties (Theme Variables)
   -------------------------------------------------------------------------- */
:root {
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-display: 'Space Grotesk', var(--font-sans);
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;

  /* Neutrals */
  --color-bg: #f8fafc;
  --color-card-bg: #ffffff;
  --color-text-main: #0f172a;
  --color-text-muted: #475569;
  --color-text-subtle: #64748b;
  --color-border: #e2e8f0;
  --color-border-dark: #334155;
  
  /* Slate Dark Surfaces */
  --slate-950: #020617;
  --slate-900: #0f172a;
  --slate-850: #131d33;
  --slate-800: #1e293b;
  --slate-700: #334155;
  --slate-600: #475569;
  --slate-500: #64748b;
  --slate-400: #94a3b8;
  --slate-300: #cbd5e1;
  --slate-200: #e2e8f0;
  --slate-100: #f1f5f9;
  --slate-50: #f8fafc;

  /* Primary Brand Gradients & Accents */
  --purple-600: #7c3aed;
  --purple-700: #6d28d9;
  --purple-800: #5b21b6;
  --fuchsia-600: #c026d3;
  --pink-600: #db2777;
  --pink-500: #ec4899;
  
  /* State Colors */
  --sky-600: #0284c7;
  --sky-500: #0ea5e9;
  --sky-100: #e0f2fe;
  --sky-50: #f0f9ff;
  
  --amber-600: #d97706;
  --amber-500: #f59e0b;
  --amber-400: #fbbf24;
  --amber-100: #fef3c7;
  --amber-50: #fffbeb;
  
  --emerald-600: #059669;
  --emerald-500: #10b981;
  --emerald-100: #d1fae5;
  --emerald-50: #ecfdf5;
  
  --rose-600: #e11d48;
  --rose-500: #f43f5e;
  --rose-100: #ffe4e6;
  --rose-50: #fff1f2;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  --shadow-purple: 0 10px 25px -5px rgba(147, 51, 234, 0.25);

  /* Layout */
  --max-w-content: 1280px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-full: 9999px;
  --transition-fast: 0.18s ease;
  --transition-normal: 0.25s ease;
}

/* --------------------------------------------------------------------------
   2. Base & Reset
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text-main);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  position: relative;
  width: 100%;
}

section[id] {
  scroll-margin-top: 85px;
}

::selection {
  background-color: #fbbf24;
  color: #0f172a;
}

a {
  color: inherit;
  text-decoration: none;
}

button, input, select, textarea {
  font: inherit;
}

img, svg {
  display: block;
}

/* --------------------------------------------------------------------------
   3. Common Layout Containers & Grids
   -------------------------------------------------------------------------- */
.site-container {
  width: 100%;
  max-width: var(--max-w-content);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}

@media (min-width: 640px) {
  .site-container {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }
}

@media (min-width: 1024px) {
  .site-container {
    padding-left: 2rem;
    padding-right: 2rem;
  }
}

.site-main {
  flex: 1 1 0%;
}

.site-section {
  padding-top: 4.5rem;
  padding-bottom: 4.5rem;
  border-bottom: 1px solid var(--color-border);
}

.site-section-white {
  background-color: #ffffff;
}

.site-section-slate {
  background-color: var(--color-bg);
}

.site-section-dark {
  background-color: var(--slate-900);
  color: #ffffff;
}

/* --------------------------------------------------------------------------
   4. Typography Utilities & Badges
   -------------------------------------------------------------------------- */
.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.3rem 0.8rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  margin-bottom: 0.85rem;
}

.section-badge-purple {
  background-color: #f5f3ff;
  color: #6d28d9;
  border: 1px solid #ddd6fe;
}

.section-badge-sky {
  background-color: #f0f9ff;
  color: #0369a1;
  border: 1px solid #bae6fd;
}

.section-badge-amber {
  background-color: #fffbeb;
  color: #92400e;
  border: 1px solid #fde68a;
}

.section-badge-emerald {
  background-color: #ecfdf5;
  color: #065f46;
  border: 1px solid #a7f3d0;
}

.section-badge-slate {
  background-color: #f1f5f9;
  color: #334155;
  border: 1px solid #cbd5e1;
}

.section-badge-dark {
  background-color: var(--slate-800);
  color: var(--amber-400);
  border: 1px solid var(--slate-700);
}

.section-title {
  font-size: 1.875rem;
  font-weight: 800;
  letter-spacing: -0.025em;
  color: var(--color-text-main);
  line-height: 1.2;
}

@media (min-width: 640px) {
  .section-title {
    font-size: 2.25rem;
  }
}

.section-title-dark {
  color: #ffffff;
}

.section-desc {
  font-size: 1rem;
  color: var(--color-text-muted);
  line-height: 1.625;
  margin-top: 0.75rem;
}

.section-desc-dark {
  color: var(--slate-300);
}

.text-gradient {
  background: linear-gradient(135deg, #a855f7 0%, #ec4899 50%, #f59e0b 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.font-mono {
  font-family: var(--font-mono);
}

/* --------------------------------------------------------------------------
   5. Top Advisory Bar & Header / Navbar
   -------------------------------------------------------------------------- */
#top-advisory {
  background-color: var(--slate-950);
  color: var(--slate-300);
  font-size: 0.75rem;
  padding: 0.45rem 1rem;
  text-align: center;
  border-bottom: 1px solid var(--slate-800);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.advisory-risk-label {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  color: var(--amber-400);
  font-weight: 700;
}

#main-navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: #ffffff;
  border-bottom: 1px solid var(--slate-200);
  padding: 0.85rem 0;
  transition: all var(--transition-fast);
}

#main-navbar.navbar-scrolled {
  background-color: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-sm);
  padding: 0.65rem 0;
}

@media (max-width: 640px) {
  #main-navbar {
    padding: 0.65rem 0;
  }
  #main-navbar.navbar-scrolled {
    padding: 0.5rem 0;
  }
}

.nav-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.nav-brand-group {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.brand-divider {
  width: 1px;
  height: 1.25rem;
  background-color: var(--slate-300);
  display: none;
}

@media (min-width: 768px) {
  .brand-divider {
    display: block;
  }
}

.brand-connected-badge {
  display: none;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.75rem;
  color: var(--slate-600);
  background-color: var(--slate-100);
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--slate-200);
}

@media (min-width: 1120px) {
  .brand-connected-badge {
    display: flex;
  }
}

.nav-desktop-links {
  display: none;
  align-items: center;
  gap: 0.2rem;
}

@media (min-width: 1200px) {
  .nav-desktop-links {
    display: flex;
  }
}

.nav-desktop-link {
  font-size: 0.825rem;
  font-weight: 600;
  color: var(--slate-600);
  padding: 0.4rem 0.6rem;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  transition: all var(--transition-fast);
}

.nav-desktop-link:hover {
  color: var(--slate-900);
  background-color: var(--slate-100);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.btn-calc-nav {
  display: none;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--slate-700);
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--slate-200);
  background-color: #ffffff;
  transition: all var(--transition-fast);
}

.btn-calc-nav:hover {
  background-color: var(--slate-50);
  color: var(--slate-900);
}

@media (min-width: 640px) {
  .btn-calc-nav {
    display: inline-flex;
  }
}

.btn-primary-gradient {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  background: linear-gradient(135deg, #7c3aed 0%, #a855f7 50%, #db2777 100%);
  color: #ffffff;
  font-weight: 700;
  font-size: 0.825rem;
  padding: 0.55rem 1rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  border: none;
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-fast);
}

.btn-primary-gradient:hover {
  background: linear-gradient(135deg, #6d28d9 0%, #9333ea 50%, #be185d 100%);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.btn-primary-gradient:active {
  transform: scale(0.98);
}

/* Hamburger Button */
.hamburger-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--slate-200);
  background-color: #ffffff;
  color: var(--slate-700);
  cursor: pointer;
  padding: 0;
  position: relative;
  z-index: 1005;
  transition: all var(--transition-fast);
}

.hamburger-toggle svg {
  pointer-events: none;
}

.hamburger-toggle:hover {
  background-color: var(--slate-100);
  color: var(--slate-950);
}

.hamburger-toggle.is-active {
  background-color: var(--slate-100);
  border-color: var(--purple-600);
  color: var(--purple-600);
}

.hamburger-toggle.is-active #hamburger-icon-bars {
  display: none !important;
}

.hamburger-toggle.is-active #hamburger-icon-close {
  display: block !important;
}

@media (min-width: 1200px) {
  .hamburger-toggle {
    display: none;
  }
}

/* Mobile Drawer Backdrop & Dropdown Container */
#mobile-drawer-backdrop {
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100vw;
  height: calc(100vh - 64px);
  background-color: rgba(2, 6, 23, 0.72);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.25s ease, visibility 0.25s ease;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

#mobile-drawer-backdrop.active {
  opacity: 1 !important;
  visibility: visible !important;
  pointer-events: auto !important;
  display: block !important;
}

#mobile-drawer-content {
  background-color: #ffffff;
  border-bottom: 2px solid var(--slate-200);
  padding: 1.25rem 1.25rem 2.5rem;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.35);
  max-height: calc(100vh - 80px);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  transform: translateY(-16px);
  opacity: 0;
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.2s ease;
}

#mobile-drawer-backdrop.active #mobile-drawer-content {
  transform: translateY(0) !important;
  opacity: 1 !important;
  display: block !important;
}

@media (max-width: 640px) {
  #mobile-drawer-backdrop {
    top: 56px;
    height: calc(100vh - 56px);
  }
}

.mobile-menu-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--slate-100);
  margin-bottom: 0.5rem;
}

.mobile-menu-links {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.mobile-menu-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 0.85rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--slate-700);
  border-radius: var(--radius-sm);
  text-decoration: none;
  min-height: 44px;
  transition: all var(--transition-fast);
}

.mobile-menu-link:hover,
.mobile-menu-link:active {
  background-color: var(--slate-100);
  color: var(--slate-950);
}

.mobile-menu-footer {
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid var(--slate-100);
}

.mobile-menu-cta {
  width: 100%;
  padding: 0.85rem 1rem;
  font-size: 0.875rem;
  min-height: 44px;
}

/* --------------------------------------------------------------------------
   6. Hero Section
   -------------------------------------------------------------------------- */
#hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, var(--slate-900) 0%, var(--slate-900) 50%, var(--slate-950) 100%);
  color: #ffffff;
  padding-top: 2.5rem;
  padding-bottom: 4.5rem;
}

@media (min-width: 1024px) {
  #hero {
    padding-top: 4rem;
    padding-bottom: 6rem;
  }
}

.hero-radial-glow {
  position: absolute;
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 400px;
  background: radial-gradient(circle, rgba(147, 51, 234, 0.25) 0%, rgba(14, 165, 233, 0.15) 50%, transparent 75%);
  pointer-events: none;
  border-radius: 50%;
  filter: blur(60px);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
  position: relative;
  z-index: 10;
}

@media (min-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1.15fr 0.85fr;
    gap: 3rem;
  }
}

.hero-headline {
  font-size: 2.15rem;
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.03em;
  color: #ffffff;
}

@media (min-width: 640px) {
  .hero-headline {
    font-size: 2.75rem;
  }
}

@media (min-width: 1200px) {
  .hero-headline {
    font-size: 3.5rem;
  }
}

.hero-subtext {
  font-size: 1.05rem;
  color: var(--slate-300);
  line-height: 1.6;
  margin-top: 1.25rem;
  max-width: 640px;
}

.hero-actions {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  margin-top: 1.75rem;
}

@media (min-width: 640px) {
  .hero-actions {
    flex-direction: row;
    align-items: center;
  }
}

.btn-hero-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: linear-gradient(135deg, #7c3aed 0%, #c026d3 50%, #db2777 100%);
  color: #ffffff;
  font-weight: 800;
  font-size: 0.95rem;
  padding: 0.9rem 1.75rem;
  border-radius: var(--radius-md);
  box-shadow: 0 10px 25px -5px rgba(124, 58, 237, 0.4);
  transition: all var(--transition-fast);
}

.btn-hero-primary:hover {
  background: linear-gradient(135deg, #6d28d9 0%, #a21caf 50%, #be185d 100%);
  transform: translateY(-2px);
  box-shadow: 0 14px 30px -5px rgba(124, 58, 237, 0.5);
}

.btn-hero-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background-color: rgba(30, 41, 59, 0.85);
  color: var(--slate-200);
  border: 1px solid var(--slate-700);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 0.9rem 1.5rem;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.btn-hero-secondary:hover {
  background-color: var(--slate-700);
  color: #ffffff;
}

.hero-risk-box {
  margin-top: 1.5rem;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-md);
  background-color: rgba(30, 41, 59, 0.6);
  border: 1px solid rgba(51, 65, 85, 0.8);
  font-size: 0.775rem;
  color: var(--slate-400);
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  line-height: 1.55;
}

.hero-pills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.6rem;
  margin-top: 1.5rem;
}

@media (min-width: 640px) {
  .hero-pills-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.hero-pill-item {
  background-color: rgba(30, 41, 59, 0.45);
  border: 1px solid var(--slate-800);
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius-sm);
  color: var(--slate-300);
  font-size: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Hero Dashboard Card */
.hero-dashboard-card {
  background-color: rgba(30, 41, 59, 0.85);
  border: 1px solid rgba(51, 65, 85, 0.85);
  border-radius: var(--radius-xl);
  padding: 1.5rem;
  box-shadow: var(--shadow-xl);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.hero-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 1rem;
  margin-bottom: 1rem;
  border-bottom: 1px solid rgba(51, 65, 85, 0.7);
}

.node-item {
  padding: 0.85rem 1rem;
  border-radius: var(--radius-md);
  background-color: rgba(15, 23, 42, 0.95);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.node-item-purple {
  border: 1px solid rgba(147, 51, 234, 0.3);
}

.node-item-sky {
  border: 1px solid rgba(14, 165, 233, 0.3);
}

.node-item-amber {
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.node-connector-arrow {
  text-align: center;
  color: var(--slate-500);
  margin: -0.25rem 0;
  font-size: 0.9rem;
}

.hero-promo-highlight {
  margin-top: 1rem;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-md);
  background: linear-gradient(90deg, rgba(245, 158, 11, 0.1) 0%, rgba(147, 51, 234, 0.1) 100%);
  border: 1px solid rgba(245, 158, 11, 0.25);
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

/* --------------------------------------------------------------------------
   7. Overview Section
   -------------------------------------------------------------------------- */
.overview-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: flex-start;
}

@media (min-width: 1024px) {
  .overview-grid {
    grid-template-columns: 1.25fr 0.75fr;
  }
}

.overview-main-card {
  background-color: var(--slate-50);
  border-radius: var(--radius-xl);
  padding: 1.75rem;
  border: 1px solid var(--slate-200);
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  box-shadow: var(--shadow-sm);
}

@media (min-width: 640px) {
  .overview-main-card {
    padding: 2.25rem;
  }
}

.role-card {
  padding: 1.15rem;
  border-radius: var(--radius-md);
  background-color: #ffffff;
  border: 1px solid var(--slate-200);
  display: flex;
  align-items: center;
  gap: 0.85rem;
  box-shadow: var(--shadow-sm);
  transition: border-color var(--transition-fast);
}

.role-card:hover {
  border-color: #c084fc;
}

.role-icon-box {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   8. Ecosystem Diagram & Flow Tabs
   -------------------------------------------------------------------------- */
.flow-toggle-container {
  display: inline-flex;
  padding: 0.25rem;
  background-color: var(--slate-200);
  border-radius: var(--radius-md);
  margin-top: 1.5rem;
  width: 100%;
  max-width: 480px;
}

.flow-toggle-btn {
  flex: 1 1 0%;
  padding: 0.6rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.825rem;
  font-weight: 700;
  border: none;
  background: transparent;
  color: var(--slate-600);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.flow-toggle-btn.active {
  background-color: #ffffff;
  color: var(--slate-900);
  box-shadow: var(--shadow-sm);
}

.flow-step-card {
  padding: 1.25rem 1.5rem;
  border-radius: var(--radius-xl);
  background-color: #ffffff;
  border: 1px solid var(--slate-200);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

@media (min-width: 640px) {
  .flow-step-card {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.flow-step-num {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.95rem;
  flex-shrink: 0;
}

.flow-arrow-down {
  display: flex;
  justify-content: center;
  font-size: 1.25rem;
  line-height: 1;
  padding: 0.25rem 0;
}

.flow-sonic-banner {
  padding: 1.5rem;
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, #f59e0b 0%, #d97706 50%, #b45309 100%);
  color: var(--slate-950);
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

@media (min-width: 640px) {
  .flow-sonic-banner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.flow-partner-banner {
  padding: 1.5rem;
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, #6d28d9 0%, #4338ca 50%, #0f172a 100%);
  color: #ffffff;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

@media (min-width: 640px) {
  .flow-partner-banner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

/* --------------------------------------------------------------------------
   9. How It Works Cards
   -------------------------------------------------------------------------- */
.how-cards-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .how-cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .how-cards-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.architecture-card {
  padding: 1.5rem;
  border-radius: var(--radius-xl);
  background-color: #ffffff;
  border: 1px solid var(--slate-200);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
}

.architecture-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* --------------------------------------------------------------------------
   10. 24x Amplify Visualizer
   -------------------------------------------------------------------------- */
.amplify-anatomy-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  align-items: center;
}

@media (min-width: 768px) {
  .amplify-anatomy-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.amplify-box {
  padding: 1.5rem;
  border-radius: var(--radius-md);
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

/* Range Sliders */
input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 8px;
  background: var(--slate-200);
  border-radius: 9999px;
  outline: none;
  cursor: pointer;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--purple-600);
  cursor: pointer;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
  transition: transform 0.1s ease;
}

input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.15);
}

input[type="range"]::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border: none;
  border-radius: 50%;
  background: var(--purple-600);
  cursor: pointer;
}

/* --------------------------------------------------------------------------
   11. Community Tokens Card
   -------------------------------------------------------------------------- */
.community-tokens-card {
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, #0f172a 0%, #1e1b4b 50%, #0f172a 100%);
  color: #ffffff;
  padding: 1.75rem;
  border: 1px solid rgba(99, 102, 241, 0.3);
  box-shadow: var(--shadow-xl);
}

@media (min-width: 640px) {
  .community-tokens-card {
    padding: 2rem;
  }
}

.token-box-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  margin: 1.5rem 0;
}

@media (min-width: 768px) {
  .token-box-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.token-single-panel {
  padding: 1.25rem;
  border-radius: var(--radius-md);
  background-color: rgba(30, 41, 59, 0.8);
  border: 1px solid var(--slate-700);
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.token-code-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  background-color: var(--slate-900);
  border: 1px solid var(--slate-600);
}

.btn-copy-token {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 800;
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-copy-token-purple {
  background-color: var(--purple-600);
  color: #ffffff;
}

.btn-copy-token-purple:hover {
  background-color: var(--purple-700);
}

.btn-copy-token-sky {
  background-color: var(--sky-600);
  color: #ffffff;
}

.btn-copy-token-sky:hover {
  background-color: var(--sky-700);
}

/* --------------------------------------------------------------------------
   12. 16-Step Workflow Timeline
   -------------------------------------------------------------------------- */
.timeline-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}

@media (min-width: 640px) {
  .timeline-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .timeline-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.timeline-step-box {
  padding: 0.85rem 1rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--slate-200);
  background-color: #ffffff;
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}

.timeline-step-box.step-active {
  background: linear-gradient(135deg, #059669 0%, #0f766e 100%);
  color: #ffffff;
  border-color: #10b981;
  box-shadow: var(--shadow-md);
}

.timeline-step-box.step-token {
  background-color: rgba(254, 243, 199, 0.7);
  border-color: #fde68a;
}

/* --------------------------------------------------------------------------
   13. Compounding Calculator
   -------------------------------------------------------------------------- */
.calc-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: flex-start;
}

@media (min-width: 1024px) {
  .calc-grid {
    grid-template-columns: 1fr 1.35fr;
  }
}

.calc-panel {
  background-color: #ffffff;
  border-radius: var(--radius-xl);
  padding: 1.5rem;
  border: 1px solid var(--slate-200);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.calc-preset-btn {
  padding: 0.4rem 0.6rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 700;
  border: 1px solid var(--slate-200);
  background-color: var(--slate-50);
  color: var(--slate-600);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.calc-preset-btn.active {
  background-color: #f5f3ff;
  border-color: #ddd6fe;
  color: #5b21b6;
}

.calc-input-row {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.calc-input-header {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
}

.calc-num-input {
  width: 100%;
  padding: 0.5rem 0.75rem;
  font-size: 0.875rem;
  font-family: var(--font-mono);
  background-color: var(--slate-50);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-sm);
  outline: none;
}

.calc-num-input:focus {
  border-color: var(--purple-600);
  box-shadow: 0 0 0 2px rgba(124, 58, 237, 0.2);
}

.calc-hero-stat {
  padding: 1.5rem;
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, #0f172a 0%, #1e1b4b 50%, #0f172a 100%);
  color: #ffffff;
  box-shadow: var(--shadow-md);
}

.calc-stat-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
}

@media (min-width: 640px) {
  .calc-stat-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.calc-stat-cell {
  padding: 0.85rem;
  border-radius: var(--radius-md);
  background-color: var(--slate-50);
  border: 1px solid var(--slate-200);
}

.btn-download-excel {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.95rem 1.25rem;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, #059669 0%, #0d9488 50%, #0f172a 100%);
  color: #ffffff;
  font-weight: 800;
  font-size: 0.9rem;
  border: none;
  cursor: pointer;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-fast);
}

.btn-download-excel:hover {
  background: linear-gradient(135deg, #047857 0%, #0f766e 50%, #020617 100%);
  transform: translateY(-1px);
}

/* Table */
.calc-table-wrap {
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-md);
  overflow: hidden;
  max-height: 260px;
  overflow-y: auto;
}

.calc-table {
  width: 100%;
  font-size: 0.75rem;
  text-align: left;
  border-collapse: collapse;
}

.calc-table th {
  background-color: var(--slate-100);
  color: var(--slate-700);
  font-weight: 700;
  padding: 0.5rem 0.75rem;
  position: sticky;
  top: 0;
  z-index: 5;
}

.calc-table td {
  padding: 0.5rem 0.75rem;
  border-top: 1px solid var(--slate-100);
  font-family: var(--font-mono);
}

.calc-table tr:hover td {
  background-color: var(--slate-50);
}

/* --------------------------------------------------------------------------
   14. FAQ Accordion & Search
   -------------------------------------------------------------------------- */
.faq-search-row {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  align-items: center;
  justify-content: center;
  margin-top: 1.5rem;
}

@media (min-width: 640px) {
  .faq-search-row {
    flex-direction: row;
  }
}

.faq-search-input-wrap {
  position: relative;
  width: 100%;
  max-width: 320px;
}

.faq-search-input {
  width: 100%;
  padding: 0.55rem 1rem 0.55rem 2.25rem;
  font-size: 0.825rem;
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-md);
  background-color: #ffffff;
  outline: none;
}

.faq-search-input:focus {
  border-color: var(--purple-600);
  box-shadow: 0 0 0 2px rgba(124, 58, 237, 0.15);
}

.faq-cat-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  justify-content: center;
}

.faq-cat-btn {
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 700;
  border: 1px solid var(--slate-200);
  background-color: #ffffff;
  color: var(--slate-600);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.faq-cat-btn.active {
  background-color: var(--slate-900);
  color: #ffffff;
  border-color: var(--slate-900);
}

.faq-accordion-item {
  border-radius: var(--radius-lg);
  background-color: #ffffff;
  border: 1px solid var(--slate-200);
  overflow: hidden;
  margin-bottom: 0.75rem;
  box-shadow: var(--shadow-sm);
  transition: border-color var(--transition-fast);
}

.faq-accordion-item.open {
  border-color: #c084fc;
}

.faq-accordion-trigger {
  width: 100%;
  padding: 1rem 1.25rem;
  text-align: left;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  background: transparent;
  border: none;
  cursor: pointer;
}

.faq-accordion-trigger:hover {
  background-color: var(--slate-50);
}

.faq-accordion-body {
  padding: 0.25rem 1.25rem 1.25rem;
  font-size: 0.85rem;
  color: var(--slate-600);
  line-height: 1.6;
  border-top: 1px solid var(--slate-100);
  background-color: rgba(248, 250, 252, 0.6);
}

/* --------------------------------------------------------------------------
   15. Risk Disclosures & Grid Cards
   -------------------------------------------------------------------------- */
.risk-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

@media (min-width: 640px) {
  .risk-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .risk-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.risk-card {
  padding: 1.5rem;
  border-radius: var(--radius-xl);
  background-color: rgba(30, 41, 59, 0.8);
  border: 1px solid var(--slate-700);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

/* --------------------------------------------------------------------------
   16. Footer
   -------------------------------------------------------------------------- */
.site-footer {
  background-color: var(--slate-950);
  color: var(--slate-400);
  font-size: 0.75rem;
  border-top: 1px solid var(--slate-800);
}

.footer-cta-bar {
  border-bottom: 1px solid var(--slate-850);
  background-color: rgba(15, 23, 42, 0.6);
  padding: 2.5rem 1.25rem;
}

.footer-cta-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .footer-cta-content {
    flex-direction: row;
    align-items: center;
  }
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  padding: 3rem 0;
  border-bottom: 1px solid var(--slate-800);
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 1.25fr 1fr 1fr 1fr;
  }
}

.footer-nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-nav-list a:hover {
  color: #ffffff;
}

.footer-legal-blocks {
  padding: 2rem 0;
  border-bottom: 1px solid var(--slate-800);
  font-size: 0.6875rem;
  line-height: 1.6;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer-bottom-row {
  padding: 2rem 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.6875rem;
  color: var(--slate-500);
}

@media (min-width: 640px) {
  .footer-bottom-row {
    flex-direction: row;
  }
}

/* --------------------------------------------------------------------------
   17. Utility Icons & Animation Accents
   -------------------------------------------------------------------------- */
.icon-inline {
  display: inline-block;
  vertical-align: middle;
  width: 1rem;
  height: 1rem;
  stroke-width: 2;
  stroke: currentColor;
  fill: none;
}

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

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--emerald-400);
  display: inline-block;
  animation: pulseDot 2s infinite ease-in-out;
}

/* --------------------------------------------------------------------------
   18. YouTube Button & Embedded Videos Section
   -------------------------------------------------------------------------- */
.btn-youtube {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background-color: #ff0000;
  color: #ffffff !important;
  font-size: 0.8125rem;
  font-weight: 700;
  padding: 0.55rem 1rem;
  border-radius: var(--radius-full);
  text-decoration: none;
  transition: all var(--transition-fast);
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 2px 8px rgba(255, 0, 0, 0.25);
  white-space: nowrap;
}

.btn-youtube:hover {
  background-color: #cc0000;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(255, 0, 0, 0.35);
  color: #ffffff !important;
}

.btn-youtube svg {
  width: 1.15rem;
  height: 1.15rem;
  flex-shrink: 0;
}

.video-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
}

@media (min-width: 768px) {
  .video-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.video-card {
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
}

.video-card:hover {
  box-shadow: var(--shadow-md);
  border-color: #cbd5e1;
  transform: translateY(-2px);
}

.video-embed-wrap {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%; /* 16:9 Aspect Ratio */
  height: 0;
  background-color: #0f172a;
}

.video-embed-wrap iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

.video-card-content {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  flex: 1;
  justify-content: space-between;
}

/* --------------------------------------------------------------------------
   19. Complete CopyX Workflow Timeline
   -------------------------------------------------------------------------- */
.workflow-timeline {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  max-width: 800px;
  margin: 0 auto;
}

.workflow-node {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1.25rem;
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
}

.workflow-node:hover {
  border-color: #7c3aed;
  background-color: #faf5ff;
}

.workflow-node-highlight {
  background: #0f172a;
  border-color: #334155;
  color: #ffffff;
}

.workflow-node-highlight:hover {
  background: #1e293b;
  border-color: #7c3aed;
}

.workflow-arrow-down {
  display: flex;
  align-items: center;
  justify-content: center;
  color: #94a3b8;
  height: 24px;
}

.workflow-arrow-down svg {
  width: 18px;
  height: 18px;
  stroke: #7c3aed;
  stroke-width: 2.5;
}

/* Step 3 9-step grid */
.step-subgrid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}

@media (min-width: 640px) {
  .step-subgrid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .step-subgrid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.step-item-card {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 1rem;
  border-radius: var(--radius-lg);
  background-color: #f8fafc;
  border: 1px solid #e2e8f0;
  transition: all var(--transition-fast);
}

.step-item-card:hover {
  background-color: #ffffff;
  border-color: #0284c7;
  box-shadow: var(--shadow-sm);
}

.step-badge-num {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.75rem;
  flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   20. Responsive Grids & Layout Refinements
   -------------------------------------------------------------------------- */
/* Responsive Pillars Grid (How Ecosystem Works) */
.pillars-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .pillars-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .pillars-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* Responsive Sonic AI Steps */
.sonic-steps-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

@media (min-width: 768px) {
  .sonic-steps-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* CopyX Workflow Timeline (Items, Dots, Connectors) */
.timeline-item {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  position: relative;
}

.timeline-item:not(:last-child)::after {
  content: '';
  position: absolute;
  top: 44px;
  left: 21px;
  bottom: -20px;
  width: 2px;
  background: linear-gradient(180deg, #c084fc 0%, #cbd5e1 100%);
}

.timeline-dot {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: #ffffff;
  border: 2px solid #7c3aed;
  color: #7c3aed;
  font-weight: 800;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
  flex-shrink: 0;
  z-index: 2;
}

.timeline-content {
  flex: 1;
  background: #ffffff;
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-xl);
  padding: 1.35rem 1.5rem;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
}

.timeline-content:hover {
  border-color: #a855f7;
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

@media (max-width: 640px) {
  .timeline-item {
    gap: 0.85rem;
  }
  .timeline-dot {
    width: 36px;
    height: 36px;
    font-size: 0.875rem;
  }
  .timeline-item:not(:last-child)::after {
    left: 17px;
    top: 36px;
  }
  .timeline-content {
    padding: 1rem 1.15rem;
  }
}

/* Arithmetic Promo Grid */
.promo-arithmetic-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  align-items: center;
  text-align: center;
}

@media (min-width: 640px) {
  .promo-arithmetic-grid {
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  }
}

/* Mobile Navbar & Action Button Responsive Scaling */
@media (max-width: 520px) {
  .btn-youtube span {
    display: none;
  }
  .btn-youtube {
    padding: 0.55rem;
    border-radius: var(--radius-full);
    min-width: 38px;
    min-height: 38px;
    justify-content: center;
  }
  .btn-primary-gradient {
    padding: 0.5rem 0.85rem;
    font-size: 0.75rem;
  }
}

@media (max-width: 380px) {
  .btn-primary-gradient span {
    font-size: 0.7rem;
  }
  .btn-primary-gradient {
    padding: 0.45rem 0.65rem;
  }
}