/* {{RIPER-5:
   Action: "Added"
   Task_ID: "#7"
   Authoring_Role: "LD"
   Principle_Applied: "Aether-Design-Liquid-Glass, Aether-Design-Universal-Softness"
   Quality_Check: "CSS validated, responsive design verified"
}} */

/* ==========================================
   VOICEOPS.TECH - AETHER DESIGN SYSTEM
   Liquid Glass Philosophy Implementation
   ========================================== */

/* === CSS VARIABLES === */
:root {
  /* Aether Glass Colors */
  --glass-white: rgba(255, 255, 255, 0.1);
  --glass-white-hover: rgba(255, 255, 255, 0.15);
  --glass-border: rgba(255, 255, 255, 0.2);
  --glass-shadow: rgba(0, 0, 0, 0.1);
  
  /* Brand Colors */
  --primary: #6366f1;
  --primary-light: #818cf8;
  --primary-dark: #4f46e5;
  --accent: #06b6d4;
  --success: #10b981;
  --warning: #f59e0b;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-accent: linear-gradient(135deg, #06b6d4 0%, #3b82f6 100%);
  --gradient-hero: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
  
  /* Universal Softness - Only 2 Border Radius Values */
  --radius-soft: 1rem;        /* rounded-2xl for containers */
  --radius-full: 9999px;      /* rounded-full for circular elements */
  
  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', sans-serif;
  
  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  
  /* Transitions - Physics-based cubic-bezier */
  --transition-smooth: cubic-bezier(0.4, 0.0, 0.2, 1);
  --transition-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

/* === GLOBAL RESET === */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-sans);
  line-height: 1.6;
  color: #1f2937;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  background-attachment: fixed;
  overflow-x: hidden;
}

/* === LIQUID GLASS UTILITY CLASSES === */
.glass {
  background: var(--glass-white);
  backdrop-filter: blur(20px) saturate(180%) brightness(110%);
  -webkit-backdrop-filter: blur(20px) saturate(180%) brightness(110%);
  border: 1px solid var(--glass-border);
  box-shadow: 0 8px 32px var(--glass-shadow);
}

.glass-strong {
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(30px) saturate(200%) brightness(120%);
  -webkit-backdrop-filter: blur(30px) saturate(200%) brightness(120%);
  border: 1px solid var(--glass-border);
}

/* === UNIVERSAL SOFTNESS - BORDER RADIUS === */
.rounded-soft {
  border-radius: var(--radius-soft);
}

.rounded-full {
  border-radius: var(--radius-full);
}

/* === TYPOGRAPHY === */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  color: #111827;
}

h1 { font-size: 3.5rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 2rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
  margin-bottom: var(--space-sm);
  color: #4b5563;
}

a {
  text-decoration: none;
  color: inherit;
  transition: all 0.3s var(--transition-smooth);
}

/* === NAVIGATION === */
.navbar {
  position: fixed;
  top: var(--space-md);
  left: 50%;
  transform: translateX(-50%);
  width: 90%;
  max-width: 1200px;
  z-index: 1000;
  padding: var(--space-sm) var(--space-lg);
  transition: all 0.4s var(--transition-smooth);
}

.navbar.scrolled {
  backdrop-filter: blur(25px);
  background: rgba(255, 255, 255, 0.15);
}

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

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: white;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.nav-menu {
  display: flex;
  gap: var(--space-lg);
  list-style: none;
}

.nav-link {
  color: white;
  font-weight: 500;
  padding: var(--space-xs) var(--space-sm);
  transition: all 0.3s var(--transition-smooth);
  position: relative;
}

.nav-link:hover {
  text-shadow: 0 0 20px rgba(255, 255, 255, 0.8);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 80%;
  height: 2px;
  background: white;
  border-radius: var(--radius-full);
  transition: transform 0.3s var(--transition-smooth);
}

.nav-link:hover::after {
  transform: translateX(-50%) scaleX(1);
}

.nav-cta {
  padding: var(--space-xs) var(--space-md);
  background: white;
  color: var(--primary);
  border-radius: var(--radius-soft);
  font-weight: 600;
  transition: all 0.3s var(--transition-bounce);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(0, 0, 0, 0.3);
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: white;
  font-size: 1.5rem;
  cursor: pointer;
}

/* === BUTTONS === */
.btn {
  display: inline-block;
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-soft);
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  border: none;
  transition: all 0.3s var(--transition-bounce);
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.3);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
  width: 300px;
  height: 300px;
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(102, 126, 234, 0.6);
}

.btn-secondary {
  background: white;
  color: var(--primary);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.btn-secondary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.btn-outline {
  background: transparent;
  color: white;
  border: 2px solid white;
}

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

/* === CARDS === */
.card {
  padding: var(--space-lg);
  border-radius: var(--radius-soft);
  transition: all 0.4s var(--transition-smooth);
  position: relative;
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
  border-radius: var(--radius-soft);
  transform: scaleX(0);
  transition: transform 0.4s var(--transition-smooth);
}

.card:hover::after {
  transform: scaleX(1);
}

/* === SECTIONS === */
section {
  padding: var(--space-2xl) var(--space-md);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

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

/* === HERO SECTION === */
.hero {
  text-align: center;
  color: white;
  position: relative;
}

.hero h1 {
  color: white;
  font-size: 4rem;
  margin-bottom: var(--space-md);
  text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  animation: fadeInUp 0.8s var(--transition-smooth);
}

.hero p {
  color: rgba(255, 255, 255, 0.95);
  font-size: 1.25rem;
  margin-bottom: var(--space-xl);
  animation: fadeInUp 0.8s var(--transition-smooth) 0.2s both;
}

.hero-cta {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  animation: fadeInUp 0.8s var(--transition-smooth) 0.4s both;
}

/* === WORKFLOW SECTION === */
.workflow {
  background: rgba(255, 255, 255, 0.05);
}

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

.workflow-step {
  text-align: center;
  position: relative;
}

.step-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--space-md);
  background: var(--gradient-accent);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: white;
  box-shadow: 0 8px 25px rgba(6, 182, 212, 0.4);
  transition: all 0.4s var(--transition-bounce);
}

.workflow-step:hover .step-icon {
  transform: scale(1.1) rotate(5deg);
  box-shadow: 0 12px 35px rgba(6, 182, 212, 0.6);
}

.step-arrow {
  position: absolute;
  top: 40px;
  right: -20px;
  font-size: 2rem;
  color: rgba(255, 255, 255, 0.5);
  display: none;
}

/* === FEATURES GRID === */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.feature-icon {
  width: 60px;
  height: 60px;
  background: var(--gradient-primary);
  border-radius: var(--radius-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: white;
  margin-bottom: var(--space-md);
  transition: all 0.3s var(--transition-bounce);
}

.card:hover .feature-icon {
  transform: rotate(360deg) scale(1.1);
}

/* === PRICING CARDS === */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

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

.price {
  font-size: 3rem;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin: var(--space-md) 0;
}

.price-features {
  list-style: none;
  margin: var(--space-lg) 0;
  text-align: left;
}

.price-features li {
  padding: var(--space-xs) 0;
  color: #4b5563;
  position: relative;
  padding-left: var(--space-lg);
}

.price-features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--success);
  font-weight: 700;
}

.featured {
  border: 3px solid var(--primary);
  transform: scale(1.05);
}

/* === CONTACT FORM === */
.contact-form {
  max-width: 600px;
  margin: var(--space-xl) auto 0;
}

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

.form-group label {
  display: block;
  margin-bottom: var(--space-xs);
  font-weight: 600;
  color: #374151;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--space-sm);
  border-radius: var(--radius-soft);
  border: 2px solid rgba(255, 255, 255, 0.3);
  background: rgba(255, 255, 255, 0.9);
  font-family: var(--font-sans);
  font-size: 1rem;
  transition: all 0.3s var(--transition-smooth);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
  background: white;
}

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

/* === FOOTER === */
.footer {
  background: rgba(0, 0, 0, 0.3);
  color: white;
  padding: var(--space-xl) var(--space-md);
  text-align: center;
  backdrop-filter: blur(10px);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
  text-align: left;
}

.footer-section h4 {
  color: white;
  margin-bottom: var(--space-md);
}

.footer-section ul {
  list-style: none;
}

.footer-section ul li {
  margin-bottom: var(--space-xs);
}

.footer-section a {
  color: rgba(255, 255, 255, 0.8);
  transition: color 0.3s var(--transition-smooth);
}

.footer-section a:hover {
  color: white;
  text-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}

.social-links {
  display: flex;
  gap: var(--space-md);
  margin-top: var(--space-md);
}

.social-icon {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s var(--transition-bounce);
}

.social-icon:hover {
  background: white;
  color: var(--primary);
  transform: translateY(-5px);
}

.copyright {
  margin-top: var(--space-lg);
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  color: rgba(255, 255, 255, 0.7);
}

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

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-20px);
  }
}

.float-animation {
  animation: float 3s ease-in-out infinite;
}

/* === RESPONSIVE DESIGN === */
@media (max-width: 768px) {
  h1 { font-size: 2.5rem; }
  h2 { font-size: 2rem; }
  
  .hero h1 {
    font-size: 2.5rem;
  }
  
  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: var(--space-md);
    border-radius: var(--radius-soft);
    margin-top: var(--space-sm);
  }
  
  .nav-menu.active {
    display: flex;
  }
  
  .nav-link {
    color: var(--primary);
  }
  
  .menu-toggle {
    display: block;
  }
  
  .hero-cta {
    flex-direction: column;
    align-items: center;
  }
  
  .pricing-grid,
  .features-grid,
  .workflow-steps {
    grid-template-columns: 1fr;
  }
  
  .featured {
    transform: scale(1);
  }
  
  .step-arrow {
    display: none !important;
  }
}

@media (min-width: 769px) {
  .step-arrow {
    display: block;
  }
  
  .workflow-step:last-child .step-arrow {
    display: none;
  }
}

/* === UTILITY CLASSES === */
.text-center { text-align: center; }
.text-white { color: white; }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }

.badge {
  display: inline-block;
  padding: var(--space-xs) var(--space-md);
  background: var(--gradient-accent);
  color: white;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: var(--space-md);
}

/* === SMOOTH SCROLL === */
html {
  scroll-padding-top: 100px;
}