/* ===================================
   TO-DO EMOTE WEBSITE STYLES
   Design: Dark theme with neon accents
   =================================== */

/* CSS Custom Properties */
:root {
  /* Colors */
  --bg-dark-primary: #1a1a2e;
  --bg-dark-secondary: #16213e;
  --accent-purple: #a78bfa;
  --accent-purple-light: #c084fc;
  --accent-gold: #fbbf24;
  --text-white: #f3f4f6;
  --text-gray: #d1d5db;
  --text-muted: #9ca3af;
  --card-bg: rgba(26, 26, 46, 0.6);
  --card-border: rgba(167, 139, 250, 0.3);
  
  /* Typography */
  --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', 'Poppins', sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  --font-size-6xl: 3.75rem;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  
  /* Effects */
  --glow-purple: 0 0 20px rgba(167, 139, 250, 0.5);
  --glow-purple-strong: 0 0 30px rgba(167, 139, 250, 0.7);
  --glow-gold: 0 0 15px rgba(251, 191, 36, 0.4);
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;
}

/* ===================================
   RESET & BASE STYLES
   =================================== */

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

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

body {
  font-family: var(--font-primary);
  color: var(--text-white);
  background: linear-gradient(135deg, var(--bg-dark-primary) 0%, var(--bg-dark-secondary) 100%);
  background-attachment: fixed;
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}

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

h1 { font-size: var(--font-size-5xl); }
h2 { font-size: var(--font-size-4xl); }
h3 { font-size: var(--font-size-3xl); }
h4 { font-size: var(--font-size-2xl); }
h5 { font-size: var(--font-size-xl); }
h6 { font-size: var(--font-size-lg); }

p {
  margin-bottom: var(--spacing-md);
  color: var(--text-gray);
}

a {
  color: var(--accent-purple-light);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--accent-gold);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ===================================
   LAYOUT COMPONENTS
   =================================== */

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.container-narrow {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.section {
  padding: var(--spacing-3xl) 0;
}

.section-alt {
  background: rgba(22, 33, 62, 0.5);
  backdrop-filter: blur(10px);
}

/* ===================================
   HEADER & NAVIGATION
   =================================== */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(26, 26, 46, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--card-border);
  padding: var(--spacing-md) 0;
  transition: background var(--transition-normal);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--text-white);
  text-decoration: none;
}

.logo-emoji {
  font-size: var(--font-size-3xl);
  filter: drop-shadow(var(--glow-gold));
}

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

.nav-link {
  color: var(--text-gray);
  font-weight: 500;
  transition: color var(--transition-fast);
  position: relative;
}

.nav-link:hover,
.nav-link.active {
  color: var(--accent-purple-light);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-purple-light);
  transition: width var(--transition-fast);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

/* Language Switcher */
.lang-switcher {
  display: flex;
  gap: var(--spacing-sm);
  align-items: center;
}

.lang-btn {
  background: transparent;
  border: 1px solid var(--card-border);
  color: var(--text-gray);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: var(--font-size-sm);
  transition: all var(--transition-fast);
}

.lang-btn:hover,
.lang-btn.active {
  border-color: var(--accent-purple);
  color: var(--accent-purple-light);
  background: rgba(167, 139, 250, 0.1);
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  background: transparent;
  border: none;
  color: var(--text-white);
  font-size: var(--font-size-2xl);
  cursor: pointer;
}

/* ===================================
   BUTTONS
   =================================== */

.btn {
  /* inline-flex ensures the button content is centered vertically as well as horizontally */
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md) var(--spacing-xl);
  border-radius: var(--radius-lg);
  font-weight: 600;
  font-size: var(--font-size-base);
  text-align: center;
  cursor: pointer;
  border: none;
  transition: all var(--transition-normal);
  text-decoration: none;
  line-height: 1.2; /* keep line-height sane for multi‑line buttons */
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-purple) 0%, var(--accent-purple-light) 100%);
  color: white;
  box-shadow: var(--glow-purple);
}

.btn-primary:hover {
  box-shadow: var(--glow-purple-strong);
  transform: translateY(-2px);
}

.btn-secondary {
  background: transparent;
  border: 2px solid var(--accent-purple);
  color: var(--accent-purple-light);
}

.btn-secondary:hover {
  background: rgba(167, 139, 250, 0.1);
  box-shadow: var(--glow-purple);
}

.btn-large {
  padding: var(--spacing-lg) var(--spacing-2xl);
  font-size: var(--font-size-lg);
}

.btn-group {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
  justify-content: center;
}

/* ===================================
   HERO SECTION
   =================================== */

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-top: 120px;
  position: relative;
  overflow: hidden;
}

.hero-content {
  max-width: 1200px;
  margin: 0 auto;
  z-index: 1;
}

.hero-tagline {
  font-size: var(--font-size-lg);
  color: var(--accent-gold);
  font-weight: 600;
  margin-bottom: var(--spacing-md);
  text-transform: uppercase;
  letter-spacing: 2px;
}

.hero-title {
  font-size: var(--font-size-6xl);
  margin-bottom: var(--spacing-md);
  background: linear-gradient(135deg, var(--text-white) 0%, var(--accent-purple-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: var(--font-size-2xl);
  color: var(--text-gray);
  margin-bottom: var(--spacing-xl);
  font-weight: 300;
}

.hero-description {
  font-size: var(--font-size-lg);
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto var(--spacing-2xl);
}

/* Circular Icon Layout */
.hero-visual {
  position: relative;
  width: 500px;
  height: 500px;
  margin: var(--spacing-3xl) auto;
}

.hero-emoji {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 200px;
  height: 200px;
  filter: drop-shadow(var(--glow-gold));
  z-index: 1;
}

.circular-icons {
  position: absolute;
  width: 100%;
  height: 100%;
  border: 2px solid var(--accent-purple);
  border-radius: 50%;
  box-shadow: var(--glow-purple);
  animation: rotate 20s linear infinite;
  z-index: 2;
}

@keyframes rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.icon-item {
  position: absolute;
  width: 80px;
  height: 80px;
  background: var(--card-bg);
  backdrop-filter: blur(10px);
  border: 2px solid var(--accent-purple);
  border-radius: var(--radius-xl);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  font-size: var(--font-size-xs);
  color: var(--text-gray);
  animation: counterRotate 20s linear infinite;
  box-shadow: 0 0 15px rgba(167, 139, 250, 0.6), 
              0 0 30px rgba(167, 139, 250, 0.3),
              inset 0 0 10px rgba(167, 139, 250, 0.2);
  transition: all var(--transition-normal);
  z-index: 3;
}

.icon-item:hover {
  border-color: var(--accent-purple-light);
  box-shadow: 0 0 25px rgba(167, 139, 250, 0.8), 
              0 0 40px rgba(167, 139, 250, 0.4),
              inset 0 0 15px rgba(167, 139, 250, 0.3);
  transform: scale(1.05);
}

@keyframes counterRotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(-360deg); }
}

.icon-item:nth-child(1) { top: 0; left: 50%; transform: translateX(-50%) rotate(0deg); }
.icon-item:nth-child(2) { top: 25%; right: 0; transform: translateX(50%) rotate(90deg); }
.icon-item:nth-child(3) { bottom: 0; left: 50%; transform: translateX(-50%) rotate(180deg); }
.icon-item:nth-child(4) { top: 25%; left: 0; transform: translateX(-50%) rotate(270deg); }

.icon-symbol {
  font-size: var(--font-size-2xl);
}

/* ===================================
   FEATURE CARDS
   =================================== */

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-3xl);
}

.feature-card {
  background: var(--card-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  transition: all var(--transition-normal);
  text-align: center;
}

.feature-card h3,
.feature-card h4 {
  word-wrap: break-word;
  overflow-wrap: break-word;
  hyphens: auto;
}

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

.feature-icon {
  font-size: var(--font-size-5xl);
  margin-bottom: var(--spacing-md);
  filter: drop-shadow(var(--glow-gold));
}

.feature-title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-sm);
  color: var(--text-white);
}

.feature-description {
  color: var(--text-gray);
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-sm);
}

.feature-link {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  color: var(--accent-purple-light);
  font-weight: 500;
  transition: gap var(--transition-fast);
}

.feature-link:hover {
  gap: var(--spacing-sm);
}

/* ===================================
   SECTION HEADERS
   =================================== */

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
}

.section-title {
  font-size: var(--font-size-4xl);
  margin-bottom: var(--spacing-md);
  background: linear-gradient(135deg, var(--text-white) 0%, var(--accent-purple-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-subtitle {
  font-size: var(--font-size-lg);
  color: var(--text-gray);
  max-width: 700px;
  margin: 0 auto;
}

/* ===================================
   PRICING TABLE
   =================================== */

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
  max-width: 1300px;
  margin: 0 auto;
}

.pricing-card {
  background: var(--card-bg);
  backdrop-filter: blur(10px);
  border: 2px solid var(--card-border);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  transition: all var(--transition-normal);
  position: relative;
}

.pricing-card.featured {
  border-color: var(--accent-purple);
  box-shadow: var(--glow-purple);
}

.pricing-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--glow-purple-strong);
}

.pricing-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--accent-purple) 0%, var(--accent-purple-light) 100%);
  color: white;
  padding: var(--spacing-xs) var(--spacing-lg);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: 600;
}

.pricing-title {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--spacing-sm);
  text-align: center;
}

.pricing-price {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  color: var(--accent-purple-light);
  text-align: center;
  margin-bottom: var(--spacing-xs);
}

.pricing-period {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.pricing-features {
  list-style: none;
  margin-bottom: var(--spacing-xl);
}

.pricing-feature {
  padding: var(--spacing-sm) 0;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--text-gray);
}

.pricing-feature::before {
  content: '✓';
  color: var(--accent-purple);
  font-weight: 700;
  font-size: var(--font-size-lg);
}

.pricing-feature.disabled {
  color: var(--text-muted);
  text-decoration: line-through;
}

.pricing-feature.disabled::before {
  content: '×';
  color: var(--text-muted);
}

/* ===================================
   FOOTER
   =================================== */

.footer {
  background: rgba(16, 16, 30, 0.9);
  border-top: 1px solid var(--card-border);
  padding: var(--spacing-3xl) 0 var(--spacing-xl);
  margin-top: var(--spacing-3xl);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
}

.footer-column h4 {
  color: var(--text-white);
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-md);
}

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

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

.footer-links a {
  color: var(--text-gray);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--accent-purple-light);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-xl);
  border-top: 1px solid var(--card-border);
  color: var(--text-muted);
  font-size: var(--font-size-sm);
}

/* ===================================
   UTILITY CLASSES
   =================================== */

.text-center { text-align: center; }
.text-gradient {
  background: linear-gradient(135deg, var(--text-white) 0%, var(--accent-purple-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.mt-0 { margin-top: 0; }
.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-0 { margin-bottom: 0; }
.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); }

/* ===================================
   RESPONSIVE DESIGN
   =================================== */

@media (max-width: 1024px) {
  .hero-visual {
    width: 400px;
    height: 400px;
  }
  
  .hero-emoji {
    width: 150px;
    height: 150px;
  }
  
  .icon-item {
    width: 70px;
    height: 70px;
  }
}

@media (max-width: 1024px) {
  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  /* Typography */
  h1 { font-size: var(--font-size-4xl); }
  h2 { font-size: var(--font-size-3xl); }
  
  .hero-title {
    font-size: var(--font-size-4xl);
  }
  
  .hero-subtitle {
    font-size: var(--font-size-xl);
  }
  
  /* Navigation */
  .menu-toggle {
    display: block;
  }
  
  .nav-menu {
    position: fixed;
    top: 70px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 70px);
    background: rgba(26, 26, 46, 0.98);
    backdrop-filter: blur(10px);
    flex-direction: column;
    padding: var(--spacing-xl);
    transition: left var(--transition-normal);
  }
  
  .nav-menu.active {
    left: 0;
  }
  
  /* Hero */
  .hero {
    padding-top: 100px;
  }
  
  .hero-visual {
    width: 320px;
    height: 320px;
  }
  
  .hero-emoji {
    width: 120px;
    height: 120px;
  }
  
  .icon-item {
    width: 60px;
    height: 60px;
    font-size: 10px;
  }
  
  .icon-symbol {
    font-size: var(--font-size-xl);
  }
  
  /* Buttons */
  .btn-group {
    flex-direction: column;
  }
  
  .btn {
    width: 100%;
  }
  
  /* Grids */
  .features-grid,
  .pricing-grid {
    grid-template-columns: 1fr;
  }
  
  /* Footer */
  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero-visual {
    width: 280px;
    height: 280px;
  }
  
  .hero-emoji {
    width: 100px;
    height: 100px;
  }
  
  .icon-item {
    width: 50px;
    height: 50px;
  }
}

/* ===================================
   ANIMATIONS
   =================================== */

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

.fade-in-up {
  animation: fadeInUp 0.8s ease-out;
}

/* Smooth page transitions */
.page-transition {
  animation: fadeInUp 0.6s ease-out;
}

/* ===================================
   MOOD CHART DEMO
   =================================== */

.mood-chart-demo {
  position: relative;
  background: #0d0d1a;
  border: 1px solid rgba(167, 139, 250, 0.3);
  border-radius: var(--radius-xl);
  box-shadow:
    0 0 0 1px rgba(167, 139, 250, 0.08),
    0 0 40px rgba(167, 139, 250, 0.15),
    inset 0 0 80px rgba(167, 139, 250, 0.03);
  padding: 0;
  margin: var(--spacing-2xl) 0;
  overflow: hidden;
  user-select: none;
}

.mood-chart-demo canvas {
  display: block;
  border-radius: var(--radius-xl);
}