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

:root {
  /* Colors */
  --bg-color: #050b14;
  --bg-color-light: #0d1b2a;
  --primary-color: #14B8A6; /* Neon Teal */
  --primary-hover: #0d9488;
  --secondary-color: #3B82F6; /* Electric Blue */
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  
  /* Fonts */
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;
  
  /* Effects */
  --glass-bg: rgba(13, 27, 42, 0.6);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-blur: blur(12px);
  --shadow-glow: 0 0 20px rgba(20, 184, 166, 0.3);
  
  /* Layout */
  --max-width: 1200px;
}

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

body {
  font-family: var(--font-body);
  background-color: var(--bg-color);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  scroll-behavior: smooth;
}

/* Typography */
h1, h2, h3, h4, h5 {
  font-family: var(--font-heading);
  font-weight: 800;
  line-height: 1.2;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  background: linear-gradient(135deg, #fff, var(--primary-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 1.5rem;
}

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

h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

p {
  font-size: 1.125rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

/* Utilities */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
}

.text-gradient {
  background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.glass-panel {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 2.5rem;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.glass-panel:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-glow);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2rem;
  border-radius: 8px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.1rem;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.3s ease;
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
  color: #fff;
  box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(59, 130, 246, 0.6);
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--primary-color);
  color: var(--primary-color);
}

.btn-outline:hover {
  background: rgba(20, 184, 166, 0.1);
  transform: translateY(-2px);
}

/* Navigation */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(5, 11, 20, 0.85);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--glass-border);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
}

.logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  text-decoration: none;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo span {
  color: var(--primary-color);
}

.nav-links {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav-links a {
  color: var(--text-main);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
  font-size: 1rem;
}

.nav-links a:hover {
  color: var(--primary-color);
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: #fff;
  font-size: 1.5rem;
  cursor: pointer;
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding-top: 80px;
  overflow: hidden;
}

/* Abstract Background Glow */
.hero::before {
  content: '';
  position: absolute;
  top: 20%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: var(--primary-color);
  filter: blur(200px);
  opacity: 0.15;
  border-radius: 50%;
  z-index: -1;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: 10%;
  left: -10%;
  width: 400px;
  height: 400px;
  background: var(--secondary-color);
  filter: blur(150px);
  opacity: 0.15;
  border-radius: 50%;
  z-index: -1;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-text {
  animation: fadeUp 1s ease-out;
}

.hero-visual {
  position: relative;
  animation: fadeIn 1.5s ease-out;
}

.ai-assistant-widget {
  position: relative;
  z-index: 10;
  max-width: 400px;
  margin: 0 auto;
}

.voice-wave {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  height: 60px;
  margin: 2rem 0;
}

.wave-bar {
  width: 4px;
  height: 20px;
  background: var(--primary-color);
  border-radius: 2px;
  animation: pulse 1s infinite alternate;
}

.wave-bar:nth-child(2) { animation-delay: 0.2s; height: 30px; }
.wave-bar:nth-child(3) { animation-delay: 0.4s; height: 50px; }
.wave-bar:nth-child(4) { animation-delay: 0.6s; height: 30px; }
.wave-bar:nth-child(5) { animation-delay: 0.8s; height: 20px; }

/* Sections */
section {
  padding: 6rem 0;
}

.section-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 4rem;
}

/* Process section */
.process-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

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

.step-number {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  margin: 0 auto 1.5rem;
  box-shadow: var(--shadow-glow);
}

/* Calculator Section */
.calc-container {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 3rem;
  align-items: center;
}

.calc-input-group {
  margin-bottom: 2rem;
}

.calc-input-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-main);
}

input[type="range"] {
  width: 100%;
  accent-color: var(--primary-color);
  cursor: pointer;
}

.range-values {
  display: flex;
  justify-content: space-between;
  margin-top: 0.5rem;
  font-size: 0.875rem;
  color: var(--text-muted);
}

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

.calc-number {
  font-size: 4rem;
  font-family: var(--font-heading);
  font-weight: 800;
  color: #ef4444; /* Red for loss */
  text-shadow: 0 0 20px rgba(239, 68, 68, 0.3);
  margin: 1rem 0;
}

.calc-number.saved {
  color: var(--primary-color);
  text-shadow: var(--shadow-glow);
}

/* Footer */
footer {
  border-top: 1px solid var(--glass-border);
  padding: 4rem 0 2rem;
  background: #03060a;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 4rem;
  margin-bottom: 3rem;
}

.footer-col h4 {
  margin-bottom: 1.5rem;
  font-size: 1.25rem;
}

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

.footer-col ul li {
  margin-bottom: 0.75rem;
}

.footer-col ul li a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-col ul li a:hover {
  color: var(--primary-color);
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid var(--glass-border);
  color: var(--text-muted);
  font-size: 0.875rem;
}

/* Animations */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

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

@keyframes pulse {
  0% { transform: scaleY(0.5); opacity: 0.5; }
  100% { transform: scaleY(1.5); opacity: 1; }
}

/* Responsive */
@media (max-width: 992px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero::before, .hero::after {
    display: none;
  }
  
  h1 {
    font-size: clamp(2.5rem, 8vw, 3.5rem);
  }
  
  .ai-assistant-widget {
    margin-top: 3rem;
  }

  .calc-container {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none; /* Mobile menu logic added via JS */
  }
  
  .mobile-menu-btn {
    display: block;
  }
}