/* Design System Variables */
:root {
  --color-primary: #3b82f6;
  --color-primary-rgb: 59, 130, 246;
  --color-bg: #fafafa;
  --color-surface: #ffffff;
  --color-border: #e4e4e7;
  --color-text: #09090b;
  --color-text-sub: #71717a;
  --color-text-muted: #a1a1aa;
  
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.04), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
  
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Base resets & styling */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Background Gradients */
.bg-gradient-glow {
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  filter: blur(140px);
  opacity: 0.15;
  pointer-events: none;
  z-index: -1;
}
.bg-gradient-glow.top-left {
  top: -200px;
  left: -200px;
  background: radial-gradient(circle, rgba(var(--color-primary-rgb), 0.8) 0%, rgba(99, 102, 241, 0.2) 100%);
}
.bg-gradient-glow.bottom-right {
  bottom: 0px;
  right: -200px;
  background: radial-gradient(circle, rgba(244, 63, 94, 0.6) 0%, rgba(var(--color-primary-rgb), 0.2) 100%);
}

/* Header */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(250, 250, 250, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: var(--transition-normal);
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo-area {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-icon {
  width: 32px;
  height: 32px;
  object-fit: contain;
  border-radius: 6px;
}

.logo-text {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 800;
  font-size: 19px;
  letter-spacing: -0.5px;
  background: linear-gradient(135deg, var(--color-primary) 0%, #6366f1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

nav {
  display: flex;
  align-items: center;
  gap: 24px;
}

nav a {
  text-decoration: none;
  color: var(--color-text-sub);
  font-weight: 500;
  font-size: 14px;
  transition: var(--transition-fast);
}

nav a:hover {
  color: var(--color-text);
}

.github-button {
  display: flex;
  align-items: center;
  gap: 8px;
  background-color: #09090b;
  color: #ffffff !important;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 13px;
  box-shadow: var(--shadow-sm);
}

.github-button:hover {
  background-color: #27272a;
}

/* Hero Section */
.hero {
  padding: 80px 24px;
  position: relative;
}

.hero-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 64px;
  align-items: center;
}

.hero-content h1 {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 48px;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -1.5px;
  margin: 16px 0 20px 0;
  color: var(--color-text);
}

.badge-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.badge {
  background-color: rgba(var(--color-primary-rgb), 0.1);
  color: var(--color-primary);
  font-weight: 600;
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 9999px;
  letter-spacing: 0.2px;
}

.badge.secondary {
  background-color: rgba(99, 102, 241, 0.1);
  color: #6366f1;
}

.badge.success {
  background-color: rgba(16, 185, 129, 0.1);
  color: #10b981;
}

.subtitle {
  font-size: 18px;
  color: var(--color-text-sub);
  margin-bottom: 32px;
}

.install-card-wrapper {
  margin-bottom: 32px;
}

.install-card {
  display: flex;
  align-items: center;
  background-color: #18181b;
  border: 1px solid #27272a;
  padding: 12px 18px;
  border-radius: var(--radius-md);
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
  max-width: 520px;
  position: relative;
  box-shadow: var(--shadow-lg);
}

.install-card .prompt {
  color: #a1a1aa;
  margin-right: 12px;
  user-select: none;
}

.install-card .code-text {
  color: #f4f4f5;
  flex: 1;
  overflow-x: auto;
  white-space: nowrap;
}

.copy-button {
  background: none;
  border: none;
  color: #a1a1aa;
  cursor: pointer;
  padding: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
}

.copy-button:hover {
  color: #ffffff;
  background-color: rgba(255, 255, 255, 0.05);
}

.copy-button svg.hidden {
  display: none;
}

.button-group {
  display: flex;
  gap: 16px;
}

.primary-btn {
  background-color: var(--color-primary);
  color: #ffffff;
  text-decoration: none;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 15px;
  box-shadow: 0 4px 14px 0 rgba(var(--color-primary-rgb), 0.3);
  transition: var(--transition-fast);
}

.primary-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px 0 rgba(var(--color-primary-rgb), 0.4);
}

.secondary-btn {
  background-color: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
  text-decoration: none;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 15px;
  transition: var(--transition-fast);
}

.secondary-btn:hover {
  background-color: rgba(0, 0, 0, 0.02);
  border-color: var(--color-text-muted);
}

/* Feature Brief List (Hero Mockup) */
.hero-mockup {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.feature-brief {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 32px;
  box-shadow: var(--shadow-xl);
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.brief-item {
  display: flex;
  gap: 20px;
}

.brief-icon {
  font-size: 28px;
  width: 56px;
  height: 56px;
  background-color: var(--color-bg);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border: 1px solid var(--color-border);
}

.brief-item h3 {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 4px;
}

.brief-item p {
  color: var(--color-text-sub);
  font-size: 14px;
}

/* Features Section */
.features-section, .demo-section, .usage-section, .props-section {
  padding: 96px 24px;
  border-top: 1px solid var(--color-border);
}

.section-container {
  max-width: 1200px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  max-width: 650px;
  margin: 0 auto 56px auto;
}

.section-header h2 {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 36px;
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 12px;
}

.section-header p {
  color: var(--color-text-sub);
  font-size: 16px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.feature-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 32px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-normal);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.feature-card-icon {
  font-size: 32px;
  margin-bottom: 20px;
}

.feature-card h3 {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}

.feature-card p {
  color: var(--color-text-sub);
  font-size: 14px;
}

.feature-card code {
  font-family: 'JetBrains Mono', monospace;
  background-color: var(--color-bg);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 13px;
}

/* Demo Section Layout */
.demo-display {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: flex-start;
}

/* Control Board Panel */
.control-board {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 32px;
  box-shadow: var(--shadow-xl);
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.control-board h3 {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 20px;
  font-weight: 700;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 16px;
}

.option-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.option-group label {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
}

.select-wrapper {
  position: relative;
  width: 100%;
}

.select-wrapper select {
  width: 100%;
  padding: 12px 16px;
  font-family: inherit;
  font-size: 14px;
  font-weight: 500;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  appearance: none;
  cursor: pointer;
  color: var(--color-text);
  outline: none;
  transition: var(--transition-fast);
}

.select-wrapper select:focus {
  border-color: var(--color-primary);
}

.select-wrapper::after {
  content: '▼';
  font-size: 9px;
  color: var(--color-text-sub);
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
}

.color-picker-grid {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.color-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 3px solid transparent;
  cursor: pointer;
  transition: var(--transition-fast);
  box-shadow: var(--shadow-sm);
  position: relative;
}

.color-btn.active {
  border-color: var(--color-text);
  transform: scale(1.1);
}

.color-btn:hover {
  transform: scale(1.05);
}

.toggles {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.input-row {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.input-row label {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
}

.text-input {
  width: 100%;
  padding: 12px 16px;
  font-family: inherit;
  font-size: 14px;
  font-weight: 500;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  outline: none;
  transition: var(--transition-fast);
}

.text-input:focus {
  border-color: var(--color-primary);
}

.toggle-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* iOS Toggle styling */
.ios-switch {
  position: relative;
  appearance: none;
  outline: none;
  width: 46px;
  height: 26px;
  background-color: var(--color-border);
  border-radius: 9999px;
  cursor: pointer;
  transition: var(--transition-fast);
}

.ios-switch::before {
  content: '';
  position: absolute;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  top: 2px;
  left: 2px;
  background-color: white;
  transition: var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.ios-switch:checked {
  background-color: var(--color-primary);
}

.ios-switch:checked::before {
  transform: translateX(20px);
}

/* Code Snippet inside Playground Options */
.code-snippet-box {
  background-color: #09090b;
  border-radius: var(--radius-md);
  border: 1px solid #1e1e24;
  overflow: hidden;
  margin-top: 0px;
  width: 100%;
  max-width: 450px;
  box-shadow: var(--shadow-xl);
}

.snippet-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 16px;
  background-color: #18181b;
  border-bottom: 1px solid #1e1e24;
  color: #a1a1aa;
  font-size: 12px;
  font-weight: 500;
}

.snippet-header button {
  background: none;
  border: none;
  color: var(--color-primary);
  font-weight: 600;
  cursor: pointer;
  font-size: 12px;
  transition: var(--transition-fast);
}

.snippet-header button:hover {
  color: #6366f1;
}

.code-snippet-box pre {
  margin: 0;
  padding: 16px;
  overflow-x: auto;
}

.code-snippet-box code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  color: #a5b4fc;
}

/* Phone Mockup Frame */
.phone-container {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 24px;
  width: 100%;
}

/* Iframe Fallback Overlay */
.iframe-fallback-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: #121214;
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 100;
  padding: 24px;
  box-sizing: border-box;
}

.iframe-fallback-overlay.hidden {
  display: none !important;
}

.fallback-content {
  text-align: center;
  color: #e4e4e7;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  width: 100%;
}

.fallback-icon {
  font-size: 40px;
  margin-bottom: 12px;
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0% { transform: translateY(0px); }
  50% { transform: translateY(-6px); }
  100% { transform: translateY(0px); }
}

.fallback-content h3 {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
  color: #ffffff;
}

.fallback-desc {
  font-size: 11px;
  color: #a1a1aa;
  margin-bottom: 10px;
  line-height: 1.4;
}

.fallback-code-block {
  background-color: #1c1c1e;
  border: 1px solid #2c2c2e;
  border-radius: var(--radius-sm);
  padding: 6px 10px;
  margin-bottom: 16px;
  overflow-x: auto;
}

.fallback-code-block code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10.5px;
  color: #3b82f6;
  white-space: nowrap;
}

.fallback-input-row {
  display: flex;
  gap: 6px;
  margin-top: 8px;
}

.fallback-input {
  flex: 1;
  background-color: #1c1c1e;
  border: 1px solid #2c2c2e;
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  font-size: 12px;
  color: #ffffff;
  outline: none;
  font-family: 'JetBrains Mono', monospace;
  width: 60%;
}

.fallback-input:focus {
  border-color: #3b82f6;
}

.fallback-btn {
  background-color: #3b82f6;
  color: #ffffff;
  border: none;
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
}

.fallback-btn:hover {
  background-color: #2563eb;
}

.phone-mockup {
  position: relative;
  width: 320px;
  height: 650px;
  background-color: #000000;
  border-radius: 48px;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.4), 0 0 0 10px #1c1c1e, 0 0 0 12px #2c2c2e;
  padding: 12px;
  display: flex;
  flex-direction: column;
}

.phone-speaker {
  width: 90px;
  height: 24px;
  background-color: #000000;
  position: absolute;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  border-radius: 12px;
  z-index: 10;
}

.phone-screen {
  flex: 1;
  background-color: #ffffff;
  border-radius: 36px;
  overflow: hidden;
  border: 1px solid #111;
  position: relative;
}

.phone-screen iframe {
  width: 100%;
  height: 100%;
  border: none;
  background-color: #ffffff;
}

.phone-home-indicator {
  position: absolute;
  bottom: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 100px;
  height: 4px;
  background-color: rgba(255, 255, 255, 0.2);
  border-radius: 99px;
  z-index: 10;
}

/* Code Window formatting for Integration */
.code-window {
  background-color: #09090b;
  border: 1px solid #1e1e24;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  max-width: 800px;
  margin: 0 auto;
}

.window-header {
  display: flex;
  align-items: center;
  padding: 16px;
  background-color: #131316;
  border-bottom: 1px solid #1e1e24;
  position: relative;
}

.window-buttons {
  display: flex;
  gap: 8px;
  position: absolute;
  left: 16px;
}

.win-btn {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.win-btn.close { background-color: #f87171; }
.win-btn.minimize { background-color: #fbbf24; }
.win-btn.expand { background-color: #34d399; }

.window-title {
  width: 100%;
  text-align: center;
  font-size: 13px;
  font-family: 'JetBrains Mono', monospace;
  color: var(--color-text-sub);
}

.window-body {
  padding: 24px;
  overflow-x: auto;
}

.window-body pre {
  margin: 0;
}

.window-body code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
  color: #e4e4e7;
  line-height: 1.6;
}

/* Syntax Highlighting */
.keyword { color: #f43f5e; font-weight: 600; }
.string { color: #34d399; }
.function { color: #60a5fa; }
.tag { color: #a78bfa; }
.tag-name { color: #f472b6; }
.attr-name { color: #fbbf24; }
.attr-value { color: #fb7185; }
.number { color: #fb923c; }

/* Table styling for Props */
.table-wrapper {
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  background-color: var(--color-surface);
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 14px;
}

th {
  background-color: var(--color-bg);
  padding: 16px 20px;
  font-weight: 700;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
  font-family: 'Plus Jakarta Sans', sans-serif;
}

td {
  padding: 16px 20px;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-sub);
}

tr:last-child td {
  border-bottom: none;
}

table code {
  font-family: 'JetBrains Mono', monospace;
  background-color: rgba(var(--color-primary-rgb), 0.08);
  color: var(--color-primary);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 13px;
}

/* Footer styling */
footer {
  background-color: #09090b;
  color: #a1a1aa;
  padding: 48px 24px;
  border-top: 1px solid #1e1e24;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 14px;
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  color: #a1a1aa;
  text-decoration: none;
  transition: var(--transition-fast);
}

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

/* Responsive adjustments */
@media (max-width: 900px) {
  .hero-container {
    grid-template-columns: 1fr;
    gap: 48px;
    text-align: center;
  }
  .hero-content h1 {
    font-size: 38px;
  }
  .badge-row {
    justify-content: center;
  }
  .install-card {
    margin: 0 auto;
  }
  .button-group {
    justify-content: center;
  }
  .demo-display {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .phone-container {
    order: -1; /* Display simulator on top on small screens */
  }
  .footer-container {
    flex-direction: column;
    gap: 20px;
    text-align: center;
  }
}