/* ============================================
   Wyred AI - Main Stylesheet
   Modern, Minimalist, Tech-Forward Design
   ============================================ */

/* Import Montserrat Font */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@300;400;500;600;700;800&display=swap');

/* ============================================
   CSS Variables - Brand Colors
   ============================================ */
:root {
  --deep-space-blue: #1D2939;
  --wyred-blue: #3a516f;
  --slate-grey: #838d9e;
  --dark-slate: #404e61;
  --medium-slate: #64748B;
  --cloud-white: #F9FAFB;
  --sunset-coral: #ff6778;
  --wyred-teal: #1FB299;
  --goldfinch-yellow: #FFD166;
  --pure-white: #F9FAFB;
  
  /* Gradients */
  --gradient-teal-slate: linear-gradient(135deg, var(--wyred-teal), var(--dark-slate));
  --gradient-blue-teal: linear-gradient(135deg, var(--wyred-blue), var(--wyred-teal));
  
  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.2);
  --shadow-glow-teal: 0 0 20px rgba(31, 178, 153, 0.3);
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;
  
  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============================================
   Global Reset & Base Styles
   ============================================ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: var(--deep-space-blue);
  color: var(--cloud-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Fade in on page load */
body.loaded {
  animation: fadeIn 0.6s ease-in;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* ============================================
   Typography
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--pure-white);
  margin-bottom: var(--spacing-sm);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 600;
}

h4 {
  font-size: 1.25rem;
  font-weight: 600;
}

p {
  font-size: 1.125rem;
  line-height: 1.7;
  color: var(--slate-grey);
  margin-bottom: var(--spacing-sm);
}

a {
  color: var(--wyred-teal);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--goldfinch-yellow);
}

/* ============================================
   Layout & Container
   ============================================ */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.container-wide {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

section {
  padding: var(--spacing-xl) 0;
  position: relative;
}

/* ============================================
   Header & Navigation
   ============================================ */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(29, 41, 57, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(131, 141, 158, 0.1);
  transition: all var(--transition-smooth);
}

header.scrolled {
  box-shadow: var(--shadow-md);
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem var(--spacing-md);
  max-width: 1400px;
  margin: 0 auto;
}

.logo {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--wyred-teal);
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  gap: var(--spacing-md);
  list-style: none;
  align-items: center;
}

.nav-links a {
  color: var(--cloud-white);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.nav-links a:hover {
  background: rgba(31, 178, 153, 0.1);
  color: var(--wyred-teal);
}

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--cloud-white);
  font-size: 1.5rem;
  cursor: pointer;
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-block;
  padding: 0.875rem 2rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 1rem;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-smooth);
  border: none;
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--wyred-teal);
  color: white;
  box-shadow: 0 4px 16px rgba(31, 178, 153, 0.3);
}

.btn-primary:hover {
  background: #1BC2A6;
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow-teal);
  color: white;
}

.btn-secondary {
  background: transparent;
  color: var(--cloud-white);
  border: 2px solid var(--wyred-teal);
}

.btn-secondary:hover {
  background: var(--wyred-teal);
  color: white;
  transform: translateY(-2px);
}

.btn-ghost {
  background: rgba(131, 141, 158, 0.1);
  color: var(--cloud-white);
}

.btn-ghost:hover {
  background: rgba(131, 141, 158, 0.2);
  color: var(--wyred-teal);
}

.cta-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: var(--spacing-md);
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
  position: relative;
  height: 125px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  background-image: url('https://wyredai.s3.us-east-1.amazonaws.com/fallback_city.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  margin-top: 70px;
}

/* Hero overlay with blur - dark mode */
.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(29, 41, 57, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 1;
}

/* Hero overlay - light mode */
:root[data-theme="light"] .hero::before {
  background: rgba(248, 250, 252, 0.90);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 900px;
  margin: 0 auto;
  padding: 0 1rem;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero h1 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  margin-bottom: 0.5rem;
  color: var(--pure-white);
}

:root[data-theme="light"] .hero h1 {
  color: var(--dark-slate);
}

.hero-subtitle {
  font-size: clamp(0.9rem, 2vw, 1.1rem);
  color: var(--cloud-white);
  margin-bottom: 0;
}

:root[data-theme="light"] .hero-subtitle {
  color: var(--slate-grey);
}

/* ============================================
   Animated Chat Demo
   ============================================ */
.chat-demo {
  max-width: 600px;
  margin: 2rem auto;
  background: rgba(58, 81, 111, 0.3);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(131, 141, 158, 0.2);
  box-shadow: var(--shadow-lg);
}

.chat-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-sm);
  border-bottom: 1px solid rgba(131, 141, 158, 0.2);
}

.chat-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--wyred-teal);
  animation: blink 2s ease-in-out infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.chat-title {
  font-size: 0.9rem;
  color: var(--slate-grey);
  font-weight: 500;
}

.chat-messages {
  min-height: 180px;
  max-height: 180px;
  height: 180px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.chat-message {
  padding: 0.75rem 1rem;
  border-radius: 12px;
  max-width: 85%;
  word-wrap: break-word;
  white-space: pre-wrap;
  opacity: 1;
}

.chat-message.user {
  background: var(--wyred-teal);
  color: white;
  align-self: flex-end;
  margin-left: auto;
}

.chat-message.assistant {
  background: rgba(131, 141, 158, 0.2);
  color: var(--cloud-white);
  align-self: flex-start;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideOut {
  from {
    opacity: 1;
    transform: translateY(0);
  }
  to {
    opacity: 0;
    transform: translateY(-20px);
  }
}

/* ============================================
   Feature Cards
   ============================================ */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.feature-card {
  background: rgba(58, 81, 111, 0.3);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(131, 141, 158, 0.2);
  transition: all var(--transition-smooth);
  opacity: 0;
  transform: translateY(30px);
}

.feature-card.visible {
  opacity: 1;
  transform: translateY(0);
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-glow-teal);
  border-color: var(--wyred-teal);
}

.feature-icon {
  width: 60px;
  height: 60px;
  background: var(--gradient-teal-slate);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin-bottom: var(--spacing-sm);
}

.feature-card h3 {
  font-size: 1.375rem;
  margin-bottom: var(--spacing-xs);
}

.feature-card p {
  font-size: 1rem;
  color: var(--slate-grey);
}

/* ============================================
   Security & Partners Strip
   ============================================ */
.security-strip {
  background: rgba(58, 81, 111, 0.2);
  padding: var(--spacing-md);
  border-radius: var(--radius-lg);
  text-align: center;
  margin-top: var(--spacing-lg);
  border: 1px solid rgba(131, 141, 158, 0.1);
}

.security-strip p {
  font-size: 1rem;
  color: var(--slate-grey);
  margin: 0;
}

.partners {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--spacing-md);
  flex-wrap: wrap;
  margin-top: var(--spacing-sm);
}

.partner-logo {
  color: var(--medium-slate);
  font-weight: 600;
  font-size: 1.125rem;
  opacity: 0.7;
  transition: opacity var(--transition-fast);
}

.partner-logo:hover {
  opacity: 1;
  color: var(--wyred-teal);
}

/* ============================================
   Section Headers
   ============================================ */
.section-header {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.section-header h2 {
  margin-bottom: var(--spacing-sm);
}

.section-header p {
  max-width: 700px;
  margin: 0 auto;
  font-size: 1.25rem;
}

/* ============================================
   Process Flow (How It Works)
   ============================================ */
.process-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-lg);
  position: relative;
}

.process-step {
  text-align: center;
  opacity: 0;
  transform: scale(0.9);
  transition: all var(--transition-smooth);
}

.process-step.visible {
  opacity: 1;
  transform: scale(1);
}

.step-number {
  width: 80px;
  height: 80px;
  background: var(--gradient-teal-slate);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  font-weight: 800;
  color: white;
  margin: 0 auto var(--spacing-sm);
  box-shadow: var(--shadow-md);
}

.process-step h3 {
  margin-bottom: var(--spacing-sm);
}

.process-step p {
  color: var(--slate-grey);
}

/* ============================================
   Diagram / Flowchart
   ============================================ */
.diagram {
  max-width: 800px;
  margin: var(--spacing-lg) auto;
  padding: var(--spacing-lg);
  background: rgba(58, 81, 111, 0.2);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(131, 141, 158, 0.2);
  text-align: center;
}

.diagram-flow {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.diagram-node {
  flex: 1;
  min-width: 150px;
  padding: var(--spacing-sm);
  background: var(--wyred-blue);
  border-radius: var(--radius-md);
  border: 2px solid var(--wyred-teal);
  font-weight: 600;
}

.diagram-arrow {
  font-size: 2rem;
  color: var(--wyred-teal);
}

/* ============================================
   Security Architecture
   ============================================ */
.security-diagram {
  max-width: 900px;
  margin: var(--spacing-lg) auto;
  padding: var(--spacing-lg);
  background: rgba(58, 81, 111, 0.3);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(131, 141, 158, 0.2);
}

.security-layers {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
}

.security-layer {
  padding: var(--spacing-md);
  background: rgba(29, 41, 57, 0.8);
  border-radius: var(--radius-md);
  border: 1px solid var(--wyred-teal);
  text-align: center;
}

.security-layer h4 {
  color: var(--wyred-teal);
  margin-bottom: var(--spacing-xs);
}

.security-layer p {
  font-size: 0.9rem;
  color: var(--slate-grey);
}

.callout-box {
  margin-top: var(--spacing-md);
  padding: var(--spacing-md);
  background: rgba(31, 178, 153, 0.1);
  border-left: 4px solid var(--wyred-teal);
  border-radius: var(--radius-sm);
}

.callout-box p {
  margin: 0;
  color: var(--cloud-white);
  font-weight: 500;
}

/* ============================================
   FAQ Accordion
   ============================================ */
.faq-search {
  max-width: 600px;
  margin: 0 auto var(--spacing-lg);
}

.faq-search input {
  width: 100%;
  padding: 1rem 1.5rem;
  background: rgba(58, 81, 111, 0.3);
  border: 1px solid rgba(131, 141, 158, 0.2);
  border-radius: var(--radius-md);
  color: var(--cloud-white);
  font-size: 1rem;
  font-family: 'Montserrat', sans-serif;
  transition: all var(--transition-fast);
}

.faq-search input:focus {
  outline: none;
  border-color: var(--wyred-teal);
  box-shadow: 0 0 0 3px rgba(31, 178, 153, 0.1);
}

.faq-search input::placeholder {
  color: var(--slate-grey);
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  margin-bottom: var(--spacing-sm);
  background: rgba(58, 81, 111, 0.2);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid rgba(131, 141, 158, 0.1);
}

.faq-question {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  background: none;
  border: none;
  color: var(--cloud-white);
  font-size: 1.125rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: 'Montserrat', sans-serif;
  transition: background var(--transition-fast);
}

.faq-question:hover {
  background: rgba(58, 81, 111, 0.3);
}

.faq-icon {
  font-size: 1.5rem;
  color: var(--wyred-teal);
  transition: transform var(--transition-fast);
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-smooth);
}

.faq-item.active .faq-answer {
  max-height: 500px;
}

.faq-answer-content {
  padding: 0 var(--spacing-md) var(--spacing-md);
  color: var(--slate-grey);
  line-height: 1.7;
}

/* ============================================
   Team Grid
   ============================================ */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.team-member {
  text-align: center;
  padding: var(--spacing-md);
  background: rgba(58, 81, 111, 0.2);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(131, 141, 158, 0.1);
  transition: all var(--transition-smooth);
}

.team-member:hover {
  transform: translateY(-5px);
  border-color: var(--wyred-teal);
}

.team-photo {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: var(--gradient-teal-slate);
  margin: 0 auto var(--spacing-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: white;
}

.team-member h4 {
  margin-bottom: 0.25rem;
}

.team-member p {
  font-size: 0.9rem;
  color: var(--slate-grey);
  margin: 0;
}

/* ============================================
   Contact Form
   ============================================ */
.contact-form {
  max-width: 600px;
  margin: var(--spacing-lg) auto;
  padding: var(--spacing-lg);
  background: rgba(58, 81, 111, 0.2);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(131, 141, 158, 0.2);
}

.form-group {
  margin-bottom: var(--spacing-md);
}

.form-group label {
  display: block;
  margin-bottom: var(--spacing-xs);
  color: var(--cloud-white);
  font-weight: 600;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.875rem 1.25rem;
  background: rgba(29, 41, 57, 0.5);
  border: 1px solid rgba(131, 141, 158, 0.3);
  border-radius: var(--radius-sm);
  color: var(--cloud-white);
  font-size: 1rem;
  font-family: 'Montserrat', sans-serif;
  transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--wyred-teal);
  box-shadow: 0 0 0 3px rgba(31, 178, 153, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 150px;
}

/* ============================================
   Footer
   ============================================ */
footer {
  background: rgba(29, 41, 57, 0.95);
  border-top: 1px solid rgba(131, 141, 158, 0.1);
  padding: var(--spacing-lg) 0 var(--spacing-md);
  margin-top: var(--spacing-xl);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.footer-section h4 {
  color: var(--wyred-teal);
  margin-bottom: var(--spacing-sm);
  font-size: 1rem;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--spacing-xs);
}

.footer-links a {
  color: var(--slate-grey);
  font-size: 0.95rem;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--wyred-teal);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-md);
  border-top: 1px solid rgba(131, 141, 158, 0.1);
  color: var(--slate-grey);
  font-size: 0.9rem;
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 768px) {
  nav {
    padding: 1rem;
  }
  
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(29, 41, 57, 0.98);
    flex-direction: column;
    padding: var(--spacing-md);
    border-top: 1px solid rgba(131, 141, 158, 0.1);
  }
  
  .nav-links.active {
    display: flex;
  }
  
  .mobile-menu-toggle {
    display: block;
  }
  
  .cta-buttons {
    flex-direction: column;
  }
  
  .btn {
    width: 100%;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .process-steps {
    grid-template-columns: 1fr;
  }
  
  .diagram-flow {
    flex-direction: column;
  }
  
  .diagram-arrow {
    transform: rotate(90deg);
  }
  
  section {
    padding: var(--spacing-md) 0;
  }
  
  h1 {
    font-size: 2.25rem;
  }
  
  h2 {
    font-size: 1.75rem;
  }
}

@media (max-width: 480px) {
  .container,
  .container-wide {
    padding: 0 var(--spacing-sm);
  }
  
  .chat-demo {
    padding: var(--spacing-sm);
  }
  
  .feature-card,
  .team-member {
    padding: var(--spacing-sm);
  }
}

/* ============================================
   Utility Classes
   ============================================ */
.text-center {
  text-align: center;
}

.text-teal {
  color: var(--wyred-teal);
}

.text-muted {
  color: var(--slate-grey);
}

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }

/* ============================================
   Loading & Animations
   ============================================ */
.fade-in {
  animation: fadeIn 0.6s ease-in;
}

.slide-in-left {
  animation: slideInLeft 0.6s ease-out;
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.slide-in-right {
  animation: slideInRight 0.6s ease-out;
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease-out;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   Dark Mode Support
   ============================================ */

/* Light mode colors */
:root[data-theme="light"] {
  --deep-space-blue: #FFFFFF;
  --wyred-blue: #2563EB;
  --slate-grey: #475569;
  --dark-slate: #0F172A;
  --cloud-white: #0F172A;
  --pure-white: #0F172A;
  --bg-primary: #FFFFFF;
  --bg-secondary: #F8FAFC;
  --text-primary: #0F172A;
  --text-secondary: #475569;
  --border-color: #E2E8F0;
  --wyred-teal: #0D9488;
  --sunset-coral: #DC2626;
}

/* Dark mode colors (default) */
:root[data-theme="dark"] {
  --bg-primary: #1D2939;
  --bg-secondary: #2D3748;
  --text-primary: #F9FAFB;
  --text-secondary: #838d9e;
  --border-color: rgba(255, 255, 255, 0.1);
}

/* Apply theme colors */
body {
  background: var(--bg-primary);
  color: var(--text-primary);
}

/* Logo visibility based on theme */
.logo {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.logo img {
  height: auto;
  width: 120px;
}

.logo-dark {
  display: block;
}

.logo-light {
  display: none;
}

:root[data-theme="light"] .logo-dark {
  display: none !important;
}

:root[data-theme="light"] .logo-light {
  display: block !important;
}

/* Theme Toggle Button */
.theme-toggle {
  background: transparent;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.5rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  color: var(--text-primary);
}

.theme-toggle:hover {
  background: rgba(31, 178, 153, 0.1);
  border-color: var(--wyred-teal);
  transform: scale(1.05);
}

.theme-toggle svg {
  width: 20px;
  height: 20px;
}

.sun-icon {
  display: none;
}

.moon-icon {
  display: block;
}

:root[data-theme="light"] .sun-icon {
  display: block;
}

:root[data-theme="light"] .moon-icon {
  display: none;
}

/* Update header styles for light mode */
header {
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
}

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

header nav a:hover {
  color: var(--wyred-teal);
}

/* Update section backgrounds */
section {
  background: var(--bg-primary);
}

/* Update card styles */
.feature-card,
.process-step,
.security-strip,
.callout-box {
  background: var(--bg-secondary);
  border-color: var(--border-color);
  color: var(--text-primary);
}

/* Update footer */
footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  color: var(--text-secondary);
}

footer h4 {
  color: var(--text-primary);
}

footer a {
  color: var(--text-secondary);
}

footer a:hover {
  color: var(--wyred-teal);
}

/* Chat Demo Enhancements */
.chat-message {
  white-space: pre-wrap;
  word-wrap: break-word;
}

.chat-message strong {
  font-weight: 700;
  color: var(--wyred-teal);
}

.chat-message.assistant {
  line-height: 1.6;
}

/* Smooth transitions for chat messages */
.chat-messages {
  transition: opacity 0.3s ease;
}

/* ============================================
   Features Grid - 3 Column Layout
   ============================================ */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

/* Force 3 columns on larger screens */
@media (min-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 768px) and (max-width: 1023px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 767px) {
  .features-grid {
    grid-template-columns: 1fr;
  }
}

/* Light mode card improvements */
:root[data-theme="light"] .feature-card {
  background: #FFFFFF;
  border: 1px solid #E2E8F0;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

:root[data-theme="light"] .feature-card:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  border-color: var(--wyred-teal);
}

:root[data-theme="light"] .feature-icon {
  background: linear-gradient(135deg, #F0FDFA, #CCFBF1);
}

/* Light mode section backgrounds */
:root[data-theme="light"] section {
  background: #FFFFFF;
}

:root[data-theme="light"] section:nth-child(even) {
  background: #F8FAFC;
}

/* Light mode button improvements */
:root[data-theme="light"] .btn-primary {
  background: var(--wyred-teal);
  color: white;
  box-shadow: 0 2px 8px rgba(13, 148, 136, 0.3);
}

:root[data-theme="light"] .btn-primary:hover {
  background: #0F766E;
  box-shadow: 0 4px 16px rgba(13, 148, 136, 0.4);
}

:root[data-theme="light"] .btn-secondary {
  border-color: var(--wyred-teal);
  color: var(--wyred-teal);
}

:root[data-theme="light"] .btn-secondary:hover {
  background: rgba(13, 148, 136, 0.1);
}

:root[data-theme="light"] .btn-ghost {
  color: var(--text-primary);
}

:root[data-theme="light"] .btn-ghost:hover {
  background: rgba(13, 148, 136, 0.1);
  color: var(--wyred-teal);
}





/* Mobile adjustments for hero */
@media (max-width: 768px) {
  .hero {
    height: 125px;
  }
}tent .hero-subtitle {
  color: var(--slate-grey);
}

/* Smaller hero for non-homepage */
.hero.hero-small {
  height: 100px;
}

/* Mobile adjustments */
@media (max-width: 768px) {
  .hero {
    height: 125px;
  }
  
  .hero.hero-small {
    height: 100px;
  }
}