@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600;700&display=swap');

:root {
  --bg-page: #FFFFFF;
  --bg-card: #FFFFFF;
  --bg-subtle: #F5F5F7;
  --bg-subtle-hover: #EBEBEB;
  
  --primary-black: #111111;
  --primary-dark: #1A1A1A;
  
  --accent-mint: #D1FAE5;
  --accent-mint-soft: #ECFDF5;
  --accent-mint-dark: #059669;
  
  --text-primary: #111111;
  --text-secondary: #555555;
  --text-muted: #888888;
  --text-light: #BBBBBB;
  
  --border-light: #E5E5E7;
  --border-subtle: #F0F0F2;

  --radius-full: 999px;
  --radius-xl: 24px;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 8px;

  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

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

body {
  background-color: #FFFFFF;
  color: var(--text-primary);
  font-family: var(--font-sans);
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
}

/* NAVBAR */
.navbar {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-light);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 76px;
}

.logo-brand {
  font-size: 22px;
  font-weight: 800;
  color: var(--primary-black);
  letter-spacing: -0.04em;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo-brand span {
  font-size: 11px;
  font-weight: 700;
  background: var(--primary-black);
  color: white;
  padding: 3px 9px;
  border-radius: var(--radius-full);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  transition: color 0.15s ease;
  background: none;
  border: none;
  cursor: pointer;
}

.nav-link:hover, .nav-link.active {
  color: var(--primary-black);
}

.nav-cta {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* SECTION LABELS */
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  background: var(--bg-subtle);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-light);
}

.section-label .star {
  color: var(--accent-mint-dark);
  font-size: 12px;
}

/* TYPOGRAPHY */
h1.hero-headline {
  font-size: 56px;
  font-weight: 800;
  line-height: 1.04;
  letter-spacing: -0.04em;
  color: var(--primary-black);
  max-width: 840px;
  margin: 0 auto 16px;
}

@media (max-width: 768px) {
  h1.hero-headline {
    font-size: 38px;
  }
}

.subtitle-text {
  font-size: 15px;
  color: var(--text-secondary);
  max-width: 620px;
  line-height: 1.6;
}

/* HERO SECTION */
.hero-wrapper {
  text-align: center;
  padding: 48px 0 28px;
}

/* BUTTONS */
.btn {
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 700;
  padding: 12px 24px;
  border-radius: var(--radius-full);
  border: none;
  cursor: pointer;
  transition: all 0.15s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  text-decoration: none;
}

.btn-primary {
  background: var(--primary-black);
  color: white;
}

.btn-primary:hover {
  background: #222222;
  transform: translateY(-1px);
}

.btn-secondary {
  background: #FFFFFF;
  color: var(--primary-black);
  border: 1px solid var(--border-light);
}

.btn-secondary:hover {
  background: var(--bg-subtle);
  border-color: #CCCCCC;
}

.btn-sm {
  padding: 8px 18px;
  font-size: 13px;
}

.btn-record {
  background: #EF4444;
  color: white;
}

.btn-record:hover {
  background: #DC2626;
}

/* API KEY CONFIG BAR */
.api-config-bar {
  background: var(--bg-subtle);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 14px 20px;
  margin-bottom: 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.api-key-group {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 1;
  min-width: 320px;
}

.input-field {
  width: 100%;
  background: #FFFFFF;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  color: var(--primary-black);
  padding: 9px 14px;
  font-family: var(--font-sans);
  font-size: 13px;
  outline: none;
  transition: border-color 0.15s ease;
}

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

/* DEMO PRODUCT MOCKUP CONTAINER */
.product-mockup-card {
  background: #FFFFFF;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  padding: 28px;
  margin-bottom: 60px;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.03);
}

/* PILL TABS INSIDE MOCKUP */
.product-tabs {
  display: flex;
  gap: 6px;
  justify-content: center;
  background: var(--bg-subtle);
  padding: 5px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-light);
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.product-tab-btn {
  background: transparent;
  border: none;
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 700;
  color: var(--text-secondary);
  padding: 8px 20px;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all 0.15s ease;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.product-tab-btn:hover {
  color: var(--primary-black);
}

.product-tab-btn.active {
  background: var(--primary-black);
  color: white;
}

/* GRID & STRUCTURE */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

@media (max-width: 900px) {
  .grid-2 {
    grid-template-columns: 1fr;
  }
}

.panel-box {
  background: var(--bg-subtle);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 20px;
}

/* DROPZONE & INPUT MODES */
.mode-selector {
  display: flex;
  gap: 6px;
  margin-bottom: 14px;
  background: #FFFFFF;
  padding: 4px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-light);
}

.mode-btn {
  flex: 1;
  background: transparent;
  border: none;
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 700;
  color: var(--text-secondary);
  padding: 8px;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all 0.15s ease;
}

.mode-btn.active {
  background: var(--primary-black);
  color: white;
}

.dropzone {
  border: 2px dashed var(--border-light);
  border-radius: var(--radius-md);
  padding: 24px 16px;
  text-align: center;
  cursor: pointer;
  transition: all 0.15s ease;
  background: #FFFFFF;
}

.dropzone:hover, .dropzone.dragover {
  border-color: var(--primary-black);
  background: var(--bg-subtle);
}

.dropzone-icon {
  font-size: 28px;
  color: var(--primary-black);
  margin-bottom: 8px;
}

/* OPTIONS CARD (CLEAN 2-COLUMN STRUCTURE) */
.options-card {
  background: #FFFFFF;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 16px;
  margin-top: 14px;
}

.options-title {
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.options-grid {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.option-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  background: var(--bg-subtle);
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  cursor: pointer;
  user-select: none;
}

.option-toggle input[type="checkbox"] {
  accent-color: var(--primary-black);
  width: 16px;
  height: 16px;
  cursor: pointer;
}

/* AI AVATAR & WAVEFORM SHOWCASE */
.ai-visual-card {
  background: var(--primary-black);
  color: white;
  border-radius: var(--radius-md);
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.ai-avatar-circle {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, #10B981, #059669);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: white;
  flex-shrink: 0;
}

.waveform-group {
  display: flex;
  align-items: center;
  gap: 3px;
  height: 20px;
}

.waveform-bar {
  width: 3px;
  background: rgba(255, 255, 255, 0.3);
  border-radius: 2px;
  animation: wave 1.2s infinite ease-in-out alternate;
}

.waveform-bar:nth-child(2n) { animation-delay: 0.15s; }
.waveform-bar:nth-child(3n) { animation-delay: 0.3s; }
.waveform-bar:nth-child(4n) { animation-delay: 0.45s; }

@keyframes wave {
  0% { height: 4px; background: rgba(255, 255, 255, 0.2); }
  100% { height: 18px; background: #34D399; }
}

/* RESULTS & DIARIZATION BOX */
.result-box {
  background: #FFFFFF;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 20px;
  font-family: var(--font-sans);
  min-height: 420px;
  max-height: 520px;
  overflow-y: auto;
  font-size: 14px;
  line-height: 1.7;
}

.speaker-bubble {
  margin-bottom: 12px;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  background: var(--bg-subtle);
  border: 1px solid var(--border-light);
}

.speaker-badge {
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
  background: var(--primary-black);
  color: white;
  padding: 3px 9px;
  border-radius: var(--radius-full);
  margin-right: 8px;
}

.time-badge {
  font-size: 11px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* CODE BLOCK */
pre.code-block {
  background: var(--primary-black);
  border-radius: var(--radius-md);
  padding: 20px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: #E2E8F0;
  overflow-x: auto;
  line-height: 1.6;
}

.code-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.lang-selector {
  display: flex;
  gap: 4px;
  background: #FFFFFF;
  border: 1px solid var(--border-light);
  padding: 3px;
  border-radius: var(--radius-full);
}

.lang-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  padding: 5px 12px;
  font-size: 12px;
  font-weight: 700;
  border-radius: var(--radius-full);
  cursor: pointer;
}

.lang-btn.active {
  background: var(--primary-black);
  color: white;
}

/* API TABLE */
.api-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 16px;
}

.api-table th, .api-table td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border-light);
  font-size: 13px;
}

.api-table th {
  background: var(--bg-subtle);
  color: var(--text-secondary);
  font-weight: 700;
}

.method-tag {
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 11px;
  padding: 3px 8px;
  border-radius: var(--radius-full);
}

.method-post { background: var(--accent-mint-soft); color: var(--accent-mint-dark); }
.method-get { background: #E0F2FE; color: #0369A1; }
.method-delete { background: #FEE2E2; color: #B91C1C; }

.footer {
  text-align: center;
  padding: 40px 0;
  color: var(--text-muted);
  font-size: 13px;
  border-top: 1px solid var(--border-light);
  margin-top: 60px;
}