/* ============================================================================
   WaveBench Landing Page Stylesheet — Niyogi Labs Modular Theme
   Default: Light Theme (Clean, Corporate, High Legibility)
   Reusable with Niyogi Labs Root CSS via CSS Custom Properties
   ============================================================================ */

/* Import Niyogi Labs Root Variables if hosted on main domain */
@import url('/css/niyogilabs-root.css');

:root {
  /* Niyogi Labs Corporate Palette */
  --niyogi-navy: #0f172a;
  --niyogi-blue-primary: #0284c7;
  --niyogi-blue-hover: #0369a1;
  --niyogi-blue-light: #e0f2fe;
  --niyogi-cyan: #06b6d4;
  --niyogi-purple: #7c3aed;
  --niyogi-green: #10b981;
  --niyogi-amber: #f59e0b;
  --niyogi-red: #ef4444;

  /* Default Light Theme Backgrounds & Surfaces */
  --bg-page: #f8fafc;
  --bg-surface: #ffffff;
  --bg-surface-elevated: #f1f5f9;
  --bg-subtle: #e2e8f0;
  
  /* Borders & Shadows */
  --border-color: #e2e8f0;
  --border-color-hover: #cbd5e1;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 20px -2px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 12px 36px -4px rgba(15, 23, 42, 0.12);

  /* Typography */
  --text-main: #0f172a;
  --text-muted: #475569;
  --text-dim: #64748b;
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Border Radii */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
}

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

html {
  scroll-behavior: smooth;
  font-family: var(--font-sans);
  background-color: var(--bg-page);
  color: var(--text-main);
  line-height: 1.6;
}

body {
  overflow-x: hidden;
  background: var(--bg-page);
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Gradient Text Accent */
.text-gradient {
  background: linear-gradient(135deg, var(--niyogi-blue-primary), var(--niyogi-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.inline-code {
  font-family: var(--font-mono);
  background: #f1f5f9;
  border: 1px solid #cbd5e1;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.88em;
  color: var(--niyogi-blue-primary);
}

/* Light Theme Cards */
.card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.card:hover {
  box-shadow: var(--shadow-lg);
}

.mb-3 { margin-bottom: 12px; }
.mb-6 { margin-bottom: 24px; }
.mb-10 { margin-bottom: 24px; }
.mb-12 { margin-bottom: 32px; }
.mb-16 { margin-bottom: 48px; }

/* Badge Pill */
.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: var(--niyogi-blue-light);
  border: 1px solid rgba(2, 132, 199, 0.25);
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--niyogi-blue-primary);
  margin-bottom: 16px;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background-color: var(--niyogi-blue-primary);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--niyogi-blue-primary);
  animation: pulse-glow 2s infinite;
}

@keyframes pulse-glow {
  0% { transform: scale(0.95); opacity: 0.8; }
  50% { transform: scale(1.25); opacity: 1; box-shadow: 0 0 12px var(--niyogi-blue-primary); }
  100% { transform: scale(0.95); opacity: 0.8; }
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  padding: 16px 0;
}

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

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-main);
  font-weight: 700;
}

.brand-badge {
  font-size: 0.65rem;
  font-weight: 800;
  background: var(--niyogi-navy);
  color: #ffffff;
  padding: 2px 8px;
  border-radius: 4px;
  letter-spacing: 1px;
}

.brand-name { font-size: 1.25rem; }
.brand-name .dot { color: var(--niyogi-blue-primary); }

.nav-menu {
  display: flex;
  gap: 28px;
}

.nav-menu a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-menu a:hover { color: var(--niyogi-blue-primary); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: all 0.2s ease;
}

.btn-primary {
  background: var(--niyogi-blue-primary);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(2, 132, 199, 0.3);
}

.btn-primary:hover {
  background: var(--niyogi-blue-hover);
  box-shadow: 0 6px 20px rgba(2, 132, 199, 0.4);
  transform: translateY(-1px);
}

.btn-secondary {
  background: #ffffff;
  color: var(--text-main);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background: #f8fafc;
  border-color: var(--border-color-hover);
}

.btn-sm { padding: 8px 16px; font-size: 0.85rem; }
.btn-lg { padding: 16px 32px; font-size: 1.05rem; }
.btn-block { width: 100%; }

/* Hero Section */
.hero-section {
  position: relative;
  padding: 140px 0 80px;
  background: linear-gradient(180deg, #ffffff 0%, var(--bg-page) 100%);
  border-bottom: 1px solid var(--border-color);
}

.hero-container {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.hero-title {
  font-size: 3rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.5px;
  color: var(--niyogi-navy);
  margin-bottom: 20px;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 32px;
}

.hero-cta-group {
  display: flex;
  gap: 16px;
  margin-bottom: 36px;
}

.hero-metrics-strip {
  display: flex;
  align-items: center;
  gap: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--border-color);
}

.metric-value {
  display: block;
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--niyogi-blue-primary);
}

.metric-label {
  font-size: 0.78rem;
  color: var(--text-dim);
}

.metric-divider {
  width: 1px;
  height: 36px;
  background: var(--border-color);
}

/* Hero Image Card */
.hero-image-card {
  padding: 10px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #ffffff;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-color);
}

.card-header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px 12px;
  background: #f8fafc;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  border-bottom: 1px solid var(--border-color);
}

.mac-buttons { display: flex; gap: 6px; }
.mac-buttons span { width: 10px; height: 10px; border-radius: 50%; background: #cbd5e1; }

.card-title-text {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.status-indicator {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--niyogi-green);
  display: flex;
  align-items: center;
  gap: 4px;
  font-weight: 600;
}

.status-dot {
  width: 6px;
  height: 6px;
  background: var(--niyogi-green);
  border-radius: 50%;
}

.hero-img {
  width: 100%;
  height: auto;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  display: block;
}

/* General Sections */
.section { padding: 80px 0; }
.section-header { margin-bottom: 48px; }
.section-title { font-size: 2.1rem; font-weight: 800; color: var(--niyogi-navy); margin-bottom: 12px; }
.section-subtitle { font-size: 1.05rem; color: var(--text-muted); max-width: 680px; margin: 0 auto; }
.text-center { text-align: center; }

/* System Architecture Diagram Card & Image */
.diagram-card {
  padding: 24px;
  background: #ffffff;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.diagram-wrapper {
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
}

.architecture-diagram-img {
  max-width: 100%;
  height: auto;
  max-height: 440px;
  display: block;
}

/* Architecture Component Details Grid */
.architecture-details-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.arch-detail-card {
  padding: 24px 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.arch-card-highlight {
  border-color: var(--niyogi-blue-primary);
  background: #f0f9ff;
}

.arch-card-header {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.arch-card-header h3 {
  font-size: 1.15rem;
  color: var(--niyogi-navy);
}

.location-badge {
  display: inline-block;
  align-self: flex-start;
  padding: 3px 8px;
  border-radius: 4px;
  font-size: 0.72rem;
  font-weight: 600;
}

.badge-blue { background: #e0f2fe; color: #0369a1; }
.badge-purple { background: #f3e8ff; color: #6b21a8; }
.badge-green { background: #d1fae5; color: #065f46; }

.arch-detail-card p {
  color: var(--text-muted);
  font-size: 0.88rem;
  line-height: 1.55;
}

/* Combined USPs Subsection */
.usps-subsection {
  margin-top: 48px;
  padding-top: 40px;
  border-top: 1px solid var(--border-color);
}

.subsection-heading {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--niyogi-navy);
  margin-bottom: 28px;
}

.usps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.usp-card {
  padding: 24px 20px;
  background: #ffffff;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.usp-icon {
  font-size: 1.6rem;
  margin-bottom: 4px;
}

.usp-card h4 {
  font-size: 1.05rem;
  color: var(--niyogi-navy);
}

.usp-card p {
  font-size: 0.86rem;
  color: var(--text-muted);
  line-height: 1.55;
}

/* Demo Workspace */
.demo-workspace {
  padding: 24px;
  border-radius: var(--radius-lg);
  background: #ffffff;
}

.demo-toolbar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 24px;
}

.demo-select {
  flex: 1;
  background: #f8fafc;
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  outline: none;
}

.demo-select:focus { border-color: var(--niyogi-blue-primary); }

.demo-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 20px;
}

.demo-panel {
  background: #f8fafc;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px;
  display: flex;
  flex-direction: column;
}

.panel-header {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--niyogi-navy);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.canvas-container {
  width: 100%;
  height: 220px;
  background: #0f172a;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid #334155;
}

#waveform-canvas { width: 100%; height: 100%; }

.panel-footer-meta {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-dim);
  margin-top: 8px;
}

.console-box {
  flex: 1;
  min-height: 220px;
  background: #0f172a;
  border-radius: var(--radius-sm);
  padding: 12px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: #94a3b8;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.console-line.info { color: #38bdf8; }
.console-line.success { color: #4ade80; }
.console-line.warn { color: #fbbf24; }

.json-code-box {
  flex: 1;
  min-height: 220px;
  background: #0f172a;
  border-radius: var(--radius-sm);
  padding: 12px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: #38bdf8;
  overflow-y: auto;
  white-space: pre-wrap;
}

/* FAQ Card & Grid */
.faq-card {
  padding: 32px;
  background: #ffffff;
}

.faq-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.faq-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px;
  background: #f8fafc;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
}

.faq-item h4 {
  font-size: 1rem;
  color: var(--niyogi-navy);
}

.faq-item p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.55;
}

/* Validation Form Section (2-Step Sequential Workflow) */
.signup-card-wrapper {
  padding: 40px;
  background: #ffffff;
  border: 1px solid var(--niyogi-blue-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.signup-header h2 {
  font-size: 1.95rem;
  color: var(--niyogi-navy);
  margin-bottom: 8px;
}

.signup-header p {
  color: var(--text-muted);
  font-size: 0.98rem;
  max-width: 620px;
  margin: 0 auto;
}

.signup-steps-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: stretch;
  margin-top: 24px;
}

.signup-step-box {
  padding: 28px;
  border-radius: var(--radius-md);
  background: #ffffff;
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: box-shadow 0.2s, border-color 0.2s;
}

.signup-step-box:hover {
  border-color: var(--niyogi-blue-primary);
  box-shadow: var(--shadow-md);
}

.step-box-1 {
  background: #f8fafc;
}

.step-box-2 {
  background: #ffffff;
  border-color: #cbd5e1;
}

.step-header {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border-color);
}

.step-number-badge {
  background: var(--niyogi-navy);
  color: #ffffff;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 12px;
  letter-spacing: 0.5px;
  flex-shrink: 0;
  margin-top: 2px;
}

.step-title {
  font-size: 1.12rem;
  font-weight: 700;
  color: var(--niyogi-navy);
  margin-bottom: 2px;
}

.step-subtitle {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.benefit-check-list { display: flex; flex-direction: column; gap: 12px; margin-bottom: 24px; }
.check-item { display: flex; align-items: center; gap: 10px; font-size: 0.88rem; color: var(--text-main); }
.check-icon {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #d1fae5;
  color: var(--niyogi-green);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: bold;
}

.oauth-buttons-container {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: auto;
}

/* Form Styles */
.validation-form { display: flex; flex-direction: column; gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: 0.85rem; font-weight: 600; color: var(--text-muted); }
.required { color: var(--niyogi-red); }

.form-input {
  background: #f8fafc;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  color: var(--text-main);
  font-family: var(--font-sans);
  font-size: 0.92rem;
  outline: none;
  transition: border-color 0.2s;
}

.form-input:focus { border-color: var(--niyogi-blue-primary); background: #ffffff; }

.radio-options-grid { display: flex; flex-direction: column; gap: 6px; }

.radio-card {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  background: #f8fafc;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.82rem;
  color: var(--text-muted);
  transition: border-color 0.2s;
}

.radio-card:hover { border-color: var(--border-color-hover); }
.radio-card input[type="radio"] { accent-color: var(--niyogi-blue-primary); }

.form-status-message {
  padding: 10px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  text-align: center;
}

.form-status-message.success {
  background: #d1fae5;
  border: 1px solid var(--niyogi-green);
  color: #065f46;
}

.form-status-message.error {
  background: #fee2e2;
  border: 1px solid var(--niyogi-red);
  color: #991b1b;
}

.spinner {
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }
.hidden { display: none !important; }

/* Footer */
.footer {
  padding: 50px 0 24px;
  border-top: 1px solid var(--border-color);
  background: #0f172a;
  color: #ffffff;
}

.footer-container { display: flex; justify-content: space-between; margin-bottom: 32px; }
.footer-tagline { color: #94a3b8; font-size: 0.85rem; margin-top: 6px; }
.footer-links { display: flex; gap: 48px; }
.footer-col { display: flex; flex-direction: column; gap: 8px; }
.footer-col h4 { font-size: 0.88rem; color: #ffffff; margin-bottom: 4px; }
.footer-col a { color: #94a3b8; text-decoration: none; font-size: 0.82rem; transition: color 0.2s; }
.footer-col a:hover { color: #38bdf8; }
.footer-bottom { text-align: center; padding-top: 20px; border-top: 1px solid #334155; color: #64748b; font-size: 0.78rem; }

/* Responsive Design */
@media (max-width: 1024px) {
  .hero-container { grid-template-columns: 1fr; }
  .architecture-details-grid { grid-template-columns: 1fr; }
  .usps-grid { grid-template-columns: 1fr 1fr; }
  .demo-grid { grid-template-columns: 1fr; }
  .signup-grid { grid-template-columns: 1fr; }
  .signup-steps-container { grid-template-columns: 1fr; }
  .faq-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .hero-title { font-size: 2.2rem; }
  .usps-grid { grid-template-columns: 1fr; }
  .nav-menu { display: none; }
}