/* ===================================
   PulsePoint.AI V5.0 — Global Styles
   =================================== */

:root {
  /* Color Palette */
  --primary-teal: #2D9B9B;
  --primary-teal-light: #45B5B5;
  --primary-teal-dark: #1A7373;
  --warm-ivory: #FAF8F5;
  --slate-grey: #3A4A5A;
  --slate-grey-light: #5A6A7A;
  --slate-grey-lighter: #E8EAED;
  --text-dark: #2C3E50;
  --text-medium: #586673;
  --text-light: #8B9AA8;
  --accent-orange: #F39C6B;
  --accent-green: #6BBF73;
  --accent-red: #E67373;
  --white: #FFFFFF;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  
  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  
  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-med: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* ===================================
   Reset & Base Styles
   =================================== */

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

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--warm-ivory);
  color: var(--text-dark);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ===================================
   Typography
   =================================== */

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.3;
  color: var(--slate-grey);
}

h1 {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-md);
}

h2 {
  font-size: 2rem;
  margin-bottom: var(--spacing-md);
}

h3 {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
}

p {
  margin-bottom: var(--spacing-sm);
  color: var(--text-medium);
}

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

a:hover {
  color: var(--primary-teal-dark);
}

/* ===================================
   Header Navigation
   =================================== */

header {
  background: var(--white);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 100;
}

nav {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-sm) var(--spacing-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary-teal);
}

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

.nav-links a {
  color: var(--text-medium);
  font-size: 0.95rem;
  padding: var(--spacing-xs) 0;
  border-bottom: 2px solid transparent;
  transition: all var(--transition-fast);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--primary-teal);
  border-bottom-color: var(--primary-teal);
}

/* ===================================
   Main Content Container
   =================================== */

main {
  flex: 1;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: var(--spacing-xl) var(--spacing-md);
}

.container {
  max-width: 900px;
  margin: 0 auto;
}

.container-narrow {
  max-width: 700px;
  margin: 0 auto;
}

/* ===================================
   Footer
   =================================== */

footer {
  background: var(--slate-grey);
  color: var(--slate-grey-lighter);
  text-align: center;
  padding: var(--spacing-lg) var(--spacing-md);
  margin-top: auto;
}

footer p {
  color: var(--slate-grey-lighter);
  font-size: 0.9rem;
}

/* ===================================
   Buttons
   =================================== */

.btn {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius-md);
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: none;
  font-size: 1rem;
  text-decoration: none;
}

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

.btn-primary:hover {
  background: var(--primary-teal-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
  background: var(--primary-teal);
  color: var(--white);
}

.btn-subtle {
  background: var(--slate-grey-lighter);
  color: var(--slate-grey);
}

.btn-subtle:hover {
  background: var(--slate-grey);
  color: var(--white);
}

.btn-full {
  width: 100%;
}

/* ===================================
   Cards
   =================================== */

.card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-med);
}

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

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.card-title {
  font-size: 1.1rem;
  color: var(--slate-grey);
  margin-bottom: var(--spacing-sm);
}

.card-text {
  color: var(--text-medium);
  font-size: 0.95rem;
}

/* ===================================
   Landing Page Hero
   =================================== */

.hero {
  text-align: center;
  padding: var(--spacing-xl) 0;
  position: relative;
  overflow: hidden;
}

.hero-title {
  font-size: 2.8rem;
  color: var(--slate-grey);
  margin-bottom: var(--spacing-md);
}

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--text-medium);
  max-width: 700px;
  margin: 0 auto var(--spacing-xl);
  line-height: 1.7;
}

.pulse-background {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(45, 155, 155, 0.1) 0%, transparent 70%);
  border-radius: 50%;
  animation: pulse 3s ease-in-out infinite;
  z-index: -1;
}

@keyframes pulse {
  0%, 100% {
    transform: translate(-50%, -50%) scale(1);
    opacity: 0.5;
  }
  50% {
    transform: translate(-50%, -50%) scale(1.2);
    opacity: 0.8;
  }
}

/* ===================================
   Feature Sections
   =================================== */

.feature-section {
  margin: var(--spacing-xl) 0;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-lg);
}

.feature-item {
  text-align: center;
  padding: var(--spacing-md);
}

.feature-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto var(--spacing-sm);
  background: var(--primary-teal-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 1.5rem;
}

.feature-title {
  font-size: 1.1rem;
  margin-bottom: var(--spacing-xs);
}

/* ===================================
   Onboarding Tiles
   =================================== */

.tile-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-md);
  margin: var(--spacing-lg) 0;
}

.tile {
  background: var(--white);
  border: 2px solid var(--slate-grey-lighter);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.tile:hover {
  border-color: var(--primary-teal);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.tile.selected {
  border-color: var(--primary-teal);
  background: rgba(45, 155, 155, 0.05);
}

.tile-icon {
  font-size: 2rem;
  margin-bottom: var(--spacing-sm);
}

/* ===================================
   Upload Area
   =================================== */

.upload-area {
  background: var(--white);
  border: 2px dashed var(--slate-grey-lighter);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  text-align: center;
  transition: all var(--transition-fast);
  margin: var(--spacing-lg) 0;
}

.upload-area:hover,
.upload-area.dragover {
  border-color: var(--primary-teal);
  background: rgba(45, 155, 155, 0.02);
}

.upload-icon {
  font-size: 3rem;
  color: var(--primary-teal-light);
  margin-bottom: var(--spacing-sm);
}

textarea {
  width: 100%;
  padding: var(--spacing-md);
  border: 1px solid var(--slate-grey-lighter);
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: 0.95rem;
  resize: vertical;
  min-height: 150px;
  margin-top: var(--spacing-md);
}

textarea:focus {
  outline: none;
  border-color: var(--primary-teal);
}

.microcopy {
  font-size: 0.85rem;
  color: var(--text-light);
  margin-top: var(--spacing-xs);
  font-style: italic;
}

/* ===================================
   Pulse Indicator
   =================================== */

.pulse-indicator {
  background: linear-gradient(135deg, var(--primary-teal-light), var(--primary-teal));
  color: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  text-align: center;
  margin-bottom: var(--spacing-lg);
  position: relative;
  overflow: hidden;
}

.pulse-circle {
  width: 120px;
  height: 120px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  margin: 0 auto var(--spacing-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  animation: breathe 2s ease-in-out infinite;
}

@keyframes breathe {
  0%, 100% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(1.05);
    opacity: 0.9;
  }
}

.pulse-text {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--white);
}

/* ===================================
   Insight Cards
   =================================== */

.insight-card {
  background: var(--white);
  border-left: 4px solid var(--primary-teal);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
  box-shadow: var(--shadow-sm);
}

.insight-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary-teal);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--spacing-xs);
}

.insight-content {
  font-size: 1.05rem;
  color: var(--text-dark);
  line-height: 1.6;
}

/* ===================================
   Quick Win Swiper
   =================================== */

.quick-win-container {
  position: relative;
  margin: var(--spacing-lg) 0;
}

.quick-win-card {
  background: linear-gradient(135deg, var(--accent-orange), #F5A97F);
  color: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
  transition: transform var(--transition-med);
}

.quick-win-card.swipe-left {
  animation: swipeLeft 0.3s ease forwards;
}

.quick-win-card.swipe-right {
  animation: swipeRight 0.3s ease forwards;
}

@keyframes swipeLeft {
  to {
    transform: translateX(-100%);
    opacity: 0;
  }
}

@keyframes swipeRight {
  to {
    transform: translateX(100%);
    opacity: 0;
  }
}

.quick-win-label {
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--spacing-sm);
  opacity: 0.9;
}

.quick-win-text {
  font-size: 1.2rem;
  font-weight: 600;
  line-height: 1.5;
}

.swipe-hint {
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-light);
  margin-top: var(--spacing-sm);
}

.quick-win-actions {
  display: flex;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
}

/* ===================================
   Lens Toggles
   =================================== */

.lens-section {
  margin: var(--spacing-xl) 0;
}

.lens-toggles {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
  flex-wrap: wrap;
}

.lens-toggle {
  padding: var(--spacing-sm) var(--spacing-md);
  border: 2px solid var(--slate-grey-lighter);
  border-radius: var(--radius-md);
  background: var(--white);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-weight: 500;
}

.lens-toggle:hover {
  border-color: var(--primary-teal);
}

.lens-toggle.active {
  background: var(--primary-teal);
  color: var(--white);
  border-color: var(--primary-teal);
}

.lens-insight {
  display: none;
  background: var(--white);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
  border-left: 4px solid var(--accent-green);
  animation: fadeIn 0.3s ease;
}

.lens-insight.active {
  display: block;
}

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

/* ===================================
   Trend Badge
   =================================== */

.trend-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  margin-top: var(--spacing-sm);
}

.trend-badge.improving {
  background: rgba(107, 191, 115, 0.15);
  color: var(--accent-green);
}

.trend-badge.holding {
  background: rgba(243, 156, 107, 0.15);
  color: var(--accent-orange);
}

.trend-badge.at-risk {
  background: rgba(230, 115, 115, 0.15);
  color: var(--accent-red);
}

/* ===================================
   Tone Selector (Replies)
   =================================== */

.tone-tabs {
  display: flex;
  gap: 0;
  margin-bottom: var(--spacing-lg);
  border-bottom: 2px solid var(--slate-grey-lighter);
  overflow-x: auto;
}

.tone-tab {
  padding: var(--spacing-sm) var(--spacing-lg);
  border: none;
  background: transparent;
  cursor: pointer;
  font-weight: 500;
  color: var(--text-medium);
  border-bottom: 3px solid transparent;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.tone-tab:hover {
  color: var(--primary-teal);
}

.tone-tab.active {
  color: var(--primary-teal);
  border-bottom-color: var(--primary-teal);
}

.reply-box {
  background: var(--white);
  border: 1px solid var(--slate-grey-lighter);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  font-size: 1.05rem;
  line-height: 1.7;
  margin-bottom: var(--spacing-md);
  min-height: 120px;
}

/* ===================================
   My Focus List
   =================================== */

.focus-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.focus-item {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  transition: all var(--transition-fast);
}

.focus-item.completed {
  opacity: 0.6;
  text-decoration: line-through;
}

.focus-checkbox {
  width: 24px;
  height: 24px;
  border: 2px solid var(--primary-teal);
  border-radius: 6px;
  cursor: pointer;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.focus-checkbox:hover {
  background: rgba(45, 155, 155, 0.1);
}

.focus-checkbox.checked {
  background: var(--primary-teal);
  color: var(--white);
}

.empty-state {
  text-align: center;
  padding: var(--spacing-xl);
  color: var(--text-light);
  font-style: italic;
}

/* ===================================
   Confetti Animation
   =================================== */

.confetti {
  position: fixed;
  width: 10px;
  height: 10px;
  background: var(--primary-teal);
  position: fixed;
  animation: confetti-fall 1.5s ease-out forwards;
  z-index: 1000;
}

@keyframes confetti-fall {
  0% {
    transform: translateY(0) rotate(0deg);
    opacity: 1;
  }
  100% {
    transform: translateY(100vh) rotate(720deg);
    opacity: 0;
  }
}

/* ===================================
   Utility Classes
   =================================== */

.text-center {
  text-align: center;
}

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

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

.hidden {
  display: none;
}

/* ===================================
   Responsive Design
   =================================== */

@media (max-width: 768px) {
  h1 {
    font-size: 2rem;
  }
  
  .hero-title {
    font-size: 2rem;
  }
  
  .nav-links {
    font-size: 0.85rem;
  }
  
  .tile-grid {
    grid-template-columns: 1fr;
  }
  
  .feature-grid {
    grid-template-columns: 1fr;
  }
  
  .tone-tabs {
    flex-wrap: wrap;
  }
  
  main {
    padding: var(--spacing-md);
  }
}

@media (max-width: 480px) {
  :root {
    font-size: 14px;
  }
  
  .btn {
    padding: var(--spacing-sm) var(--spacing-md);
  }
  
  .card {
    padding: var(--spacing-md);
  }
}