:root {
  /* Brand Color Palette - EZ Pharma Blues */
  --primary-blue: #0052ff;
  --primary-blue-hover: #003ecb;
  --primary-navy: #002266;
  --primary-cyan: #00d2ff;
  
  /* Light Theme Tokens */
  --bg-gradient-start: #e1f3ec;
  --bg-gradient-end: #d7ede7;
  --bg-page: #dff0ea;
  --card-bg: #ffffff;
  --card-border: rgba(0, 0, 0, 0.06);
  --card-shadow: 0 10px 30px -10px rgba(0, 45, 128, 0.08), 0 20px 40px -15px rgba(0, 0, 0, 0.04);
  --card-hover-shadow: 0 20px 40px -10px rgba(0, 82, 255, 0.14), 0 30px 60px -15px rgba(0, 0, 0, 0.08);
  
  --text-main: #0f172a;
  --text-muted: #526071;
  --text-subtle: #7f8e9d;
  
  --frontend-accent: #0066f5;
  --frontend-badge-bg: #0052ff;
  --backend-badge-bg: #0f172a;
  
  --btn-toggle-bg: #ffffff;
  --btn-toggle-color: #334155;
  --btn-toggle-shadow: 0 4px 14px rgba(0, 0, 0, 0.1);
  --brand-pill-bg: #ffffff;
  --brand-pill-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
}

[data-theme="dark"] {
  /* Dark Theme Tokens */
  --bg-gradient-start: #080d1a;
  --bg-gradient-end: #0c1427;
  --bg-page: #080d1a;
  --card-bg: #111b2e;
  --card-border: rgba(255, 255, 255, 0.08);
  --card-shadow: 0 10px 35px -10px rgba(0, 0, 0, 0.6), 0 0 20px rgba(0, 82, 255, 0.06);
  --card-hover-shadow: 0 20px 45px -10px rgba(0, 82, 255, 0.25), 0 0 30px rgba(0, 82, 255, 0.12);
  
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-subtle: #64748b;
  
  --frontend-accent: #38bdf8;
  --frontend-badge-bg: #0052ff;
  --backend-badge-bg: #1e293b;
  
  --btn-toggle-bg: #1e293b;
  --btn-toggle-color: #f1f5f9;
  --btn-toggle-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
  --brand-pill-bg: #131f36;
  --brand-pill-shadow: 0 4px 14px rgba(0, 0, 0, 0.3);
}

/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

html, body {
  height: 100vh;
  width: 100vw;
  overflow: hidden; /* Strict non-scrollable screen */
  position: fixed;
  top: 0;
  left: 0;
}

body {
  background-color: var(--bg-page);
  background-image: radial-gradient(at 50% 0%, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
  color: var(--text-main);
  transition: background-color 0.35s ease, color 0.35s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.static-page-wrapper {
  height: 100vh;
  width: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 1.5rem;
  position: relative;
  box-sizing: border-box;
}

/* Ambient glow accents */
.ambient-glow {
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
  opacity: 0.25;
  z-index: 0;
  transition: opacity 0.5s ease;
}

.glow-1 {
  top: -150px;
  left: 50%;
  transform: translateX(-50%);
  background: radial-gradient(circle, var(--primary-cyan) 0%, rgba(0, 82, 255, 0.2) 70%);
}

.glow-2 {
  bottom: -200px;
  right: 10%;
  background: radial-gradient(circle, var(--primary-blue) 0%, transparent 70%);
  opacity: 0.15;
}

/* Main Container */
.container {
  width: 100%;
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  z-index: 2;
}

/* Header Section */
.header-section {
  text-align: center;
  margin-bottom: 2.2rem;
  animation: fadeInDown 0.6s ease-out;
}

.brand-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 1.3rem;
  background: var(--brand-pill-bg);
  border-radius: 9999px;
  box-shadow: var(--brand-pill-shadow);
  border: 1px solid var(--card-border);
  margin-bottom: 1.1rem;
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), background-color 0.3s ease;
}

.brand-badge:hover {
  transform: translateY(-2px) scale(1.02);
}

.brand-logo {
  height: 36px;
  width: auto;
  object-fit: contain;
  display: block;
}

.main-title {
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-main);
  margin-bottom: 0.5rem;
  line-height: 1.2;
}

.subtitle {
  font-size: 0.98rem;
  font-weight: 450;
  color: var(--text-muted);
  max-width: 500px;
  margin: 0 auto;
  line-height: 1.45;
}

/* Cards Grid */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.6rem;
  width: 100%;
}

/* Individual Demo Card */
.demo-card {
  background: var(--card-bg);
  border-radius: 20px;
  padding: 2rem 1.85rem;
  border: 1px solid var(--card-border);
  box-shadow: var(--card-shadow);
  display: flex;
  flex-direction: column;
  position: relative;
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), 
              box-shadow 0.35s ease, 
              border-color 0.35s ease,
              background-color 0.3s ease;
  animation: fadeInUp 0.7s ease-out both;
}

#card-frontend {
  animation-delay: 0.1s;
}

#card-backend {
  animation-delay: 0.2s;
}

.demo-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--card-hover-shadow);
  border-color: rgba(0, 82, 255, 0.25);
}

/* Card Top Row */
.card-top-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}

.icon-box {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  transition: transform 0.3s ease;
}

.icon-box svg {
  width: 22px;
  height: 22px;
}

.icon-frontend {
  background: linear-gradient(135deg, #0052ff 0%, #0099ff 100%);
  box-shadow: 0 6px 16px rgba(0, 82, 255, 0.25);
}

.icon-backend {
  background: var(--backend-badge-bg);
  box-shadow: 0 6px 16px rgba(15, 23, 42, 0.2);
}

.demo-card:hover .icon-box {
  transform: scale(1.08);
}

.external-icon-btn {
  color: var(--text-subtle);
  background: transparent;
  border: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  text-decoration: none;
  transition: color 0.2s ease, background 0.2s ease;
}

.external-icon-btn svg {
  width: 17px;
  height: 17px;
}

.external-icon-btn:hover {
  color: var(--primary-blue);
  background: rgba(0, 82, 255, 0.08);
}

/* Category Badge */
.card-category {
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--frontend-accent);
  margin-bottom: 0.45rem;
  display: block;
}

/* Title & Description */
.card-title {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0.65rem;
  letter-spacing: -0.02em;
}

.card-description {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 1.3rem;
  min-height: 42px;
}

/* Features List */
.features-list {
  list-style: none;
  margin-bottom: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.features-list li {
  font-size: 0.86rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.55rem;
}

.bullet-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background-color: var(--text-subtle);
  display: inline-block;
  flex-shrink: 0;
}

/* Card Footer & Action Link */
.card-footer {
  margin-top: auto;
  padding-top: 0.5rem;
}

.action-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--primary-blue);
  text-decoration: none;
  transition: gap 0.25s cubic-bezier(0.34, 1.56, 0.64, 1), color 0.2s ease;
}

.action-link .arrow-icon {
  width: 17px;
  height: 17px;
  transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.action-link:hover {
  color: var(--primary-blue-hover);
  gap: 0.75rem;
}

.action-link:hover .arrow-icon {
  transform: translateX(4px);
}

/* Floating Theme Switcher Button */
.theme-toggle-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 100;
}

.theme-toggle-btn {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--btn-toggle-bg);
  color: var(--btn-toggle-color);
  border: 1px solid var(--card-border);
  box-shadow: var(--btn-toggle-shadow);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  outline: none;
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), 
              box-shadow 0.3s ease, 
              background-color 0.3s ease, 
              color 0.3s ease;
}

.theme-toggle-btn:hover {
  transform: scale(1.1) rotate(18deg);
  box-shadow: 0 6px 20px rgba(0, 82, 255, 0.22);
}

.theme-toggle-btn:active {
  transform: scale(0.95);
}

.theme-icon {
  width: 20px;
  height: 20px;
}

/* Keyframes */
@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-15px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 768px) {
  html, body {
    overflow-y: auto; /* allow scroll on small screens if height exceeds */
    position: static;
  }
  .cards-grid {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }
  .main-title {
    font-size: 1.75rem;
  }
}

/* ==============================================
   GLOBAL APP FOOTER
   ============================================== */
.app-global-footer {
  text-align: center;
  padding: 16px 12px 0 12px;
  font-size: 0.82rem;
  color: var(--text-muted, #64748b);
  width: 100%;
  margin-top: 15px;
}

.app-global-footer p {
  margin: 0;
  line-height: 1.5;
}

.app-global-footer a.footer-dev-link {
  color: var(--primary-blue, #0052ff);
  font-weight: 700;
  text-decoration: none;
  transition: color 0.15s ease;
}

.app-global-footer a.footer-dev-link:hover {
  text-decoration: underline;
  color: #003ebd;
}

[data-theme="dark"] .app-global-footer {
  color: #94a3b8;
}

[data-theme="dark"] .app-global-footer a.footer-dev-link {
  color: #60a5fa;
}