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

:root {
  /* Colors */
  --bg-dark: #05030a;
  --bg-card: rgba(13, 10, 26, 0.45);
  --bg-card-hover: rgba(22, 17, 43, 0.6);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-color-hover: rgba(99, 102, 241, 0.4);
  
  --color-primary: #f9fafb;
  --color-secondary: #9ca3af;
  --color-indigo: #6366f1;
  --color-purple: #a855f7;
  --color-teal: #14b8a6;
  
  /* Fonts */
  --font-display: 'Outfit', sans-serif;
  --font-body: 'Plus Jakarta Sans', sans-serif;
  
  /* Layout */
  --max-width: 1200px;
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* Base Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg-dark);
  color: var(--color-primary);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
}

/* Background Gradients & Grid */
body::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    radial-gradient(circle at 10% 20%, rgba(99, 102, 241, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 90% 50%, rgba(168, 85, 247, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 50% 80%, rgba(20, 184, 166, 0.05) 0%, transparent 40%);
  z-index: -2;
  pointer-events: none;
}

body::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: 40px 40px;
  background-image: linear-gradient(to right, rgba(255, 255, 255, 0.01) 1px, transparent 1px),
                    linear-gradient(to bottom, rgba(255, 255, 255, 0.01) 1px, transparent 1px);
  z-index: -1;
  pointer-events: none;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

p {
  color: var(--color-secondary);
}

.gradient-text {
  background: linear-gradient(135deg, var(--color-indigo) 0%, var(--color-purple) 50%, var(--color-teal) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

section {
  padding: 8rem 0;
  position: relative;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1.8rem;
  border-radius: 9999px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-normal);
  border: 1px solid transparent;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-indigo) 0%, var(--color-purple) 100%);
  color: white;
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(99, 102, 241, 0.5);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.03);
  color: var(--color-primary);
  border-color: var(--border-color);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--color-indigo);
  transform: translateY(-2px);
}

/* Navigation Header */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  transition: all var(--transition-normal);
  padding: 1.5rem 0;
}

header.scrolled {
  background: rgba(5, 3, 10, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 0;
}

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

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

.logo-icon {
  width: 28px;
  height: 28px;
  background: linear-gradient(135deg, var(--color-indigo), var(--color-teal));
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 1.1rem;
  color: white;
}

nav ul {
  display: flex;
  list-style: none;
  gap: 2.5rem;
  align-items: center;
}

nav a {
  text-decoration: none;
  color: var(--color-secondary);
  font-weight: 500;
  transition: color var(--transition-fast);
  font-size: 0.95rem;
}

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

/* Hero Section */
.hero {
  padding-top: 12rem;
  padding-bottom: 6rem;
  display: flex;
  align-items: center;
  min-height: 90vh;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 4rem;
  align-items: center;
}

.hero-content h1 {
  font-size: 4rem;
  line-height: 1.1;
  margin-bottom: 1.5rem;
}

.hero-content p {
  font-size: 1.2rem;
  margin-bottom: 2.5rem;
  max-width: 550px;
}

.hero-actions {
  display: flex;
  gap: 1.2rem;
}

/* Glassmorphic Cards & Grid */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
  margin-top: 4rem;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  padding: 2.5rem;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.05) 0%, transparent 100%);
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.card:hover {
  transform: translateY(-5px);
  border-color: var(--border-color-hover);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

.card:hover::before {
  opacity: 1;
}

.card-icon {
  width: 54px;
  height: 54px;
  border-radius: 16px;
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
  color: var(--color-indigo);
}

.card h3 {
  font-size: 1.4rem;
  margin-bottom: 0.8rem;
}

/* Live AI Agent Simulator Widget */
.simulator-container {
  background: #090712;
  border: 1px solid var(--border-color);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--glass-shadow);
  display: grid;
  grid-template-rows: 40px 1fr;
  height: 480px;
}

.simulator-header {
  background: #110e22;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  padding: 0 1.2rem;
  justify-content: space-between;
}

.window-dots {
  display: flex;
  gap: 6px;
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.dot-red { background: #ef4444; }
.dot-yellow { background: #f59e0b; }
.dot-green { background: #10b981; }

.window-title {
  font-size: 0.8rem;
  color: var(--color-secondary);
  font-family: var(--font-body);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.simulator-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  height: calc(100% - 40px);
}

/* Terminal View */
.terminal-view {
  background: #07050e;
  padding: 1.5rem;
  font-family: 'Courier New', Courier, monospace;
  font-size: 0.85rem;
  color: #10b981;
  overflow-y: auto;
  border-right: 1px solid var(--border-color);
}

.terminal-line {
  margin-bottom: 0.6rem;
  line-height: 1.4;
  white-space: pre-wrap;
}

.terminal-line.cmd {
  color: var(--color-primary);
}

.terminal-line.cmd::before {
  content: "decibelsoft-agent$ ";
  color: var(--color-indigo);
  font-weight: bold;
}

.terminal-line.system {
  color: var(--color-teal);
}

.terminal-line.error {
  color: #ef4444;
}

.terminal-cursor {
  display: inline-block;
  width: 8px;
  height: 15px;
  background: #10b981;
  animation: blink 1s step-end infinite;
  vertical-align: middle;
}

/* App Preview View */
.preview-view {
  background: #0f0c20;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.preview-bar {
  background: #16122c;
  padding: 0.5rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border-bottom: 1px solid var(--border-color);
}

.preview-address {
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  font-size: 0.75rem;
  padding: 0.2rem 0.8rem;
  flex-grow: 1;
  color: var(--color-secondary);
}

.preview-content {
  flex-grow: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: 1.5rem;
  overflow: hidden;
}

.preview-placeholder {
  text-align: center;
  color: var(--color-secondary);
}

.preview-placeholder i {
  font-size: 3rem;
  margin-bottom: 1rem;
  display: block;
}

/* ROI Calculator Widget */
.calculator-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3.5rem;
  align-items: center;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 32px;
  padding: 4rem;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.calc-inputs {
  display: flex;
  flex-direction: column;
  gap: 2.2rem;
}

.input-group {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

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

.input-value {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-teal);
}

/* Custom Slider Styling */
input[type=range] {
  -webkit-appearance: none;
  width: 100%;
  background: transparent;
}

input[type=range]:focus {
  outline: none;
}

input[type=range]::-webkit-slider-runnable-track {
  width: 100%;
  height: 6px;
  cursor: pointer;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 3px;
  border: none;
}

input[type=range]::-webkit-slider-thumb {
  height: 20px;
  width: 20px;
  border-radius: 50%;
  background: var(--color-indigo);
  cursor: pointer;
  -webkit-appearance: none;
  margin-top: -7px;
  box-shadow: 0 0 10px rgba(99, 102, 241, 0.5);
  transition: background var(--transition-fast), transform var(--transition-fast);
}

input[type=range]::-webkit-slider-thumb:hover {
  background: var(--color-teal);
  transform: scale(1.15);
}

/* Results panel */
.calc-results {
  background: rgba(5, 3, 10, 0.5);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.calc-results::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at center, rgba(20, 184, 166, 0.05) 0%, transparent 60%);
  pointer-events: none;
}

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

.result-card .value {
  font-family: var(--font-display);
  font-size: 3.2rem;
  font-weight: 800;
  line-height: 1;
  margin-bottom: 0.3rem;
}

.result-card .label {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-secondary);
}

/* Trust stats bar */
.stats-section {
  padding: 4rem 0;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  background: rgba(255, 255, 255, 0.01);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  text-align: center;
}

.stat-item h3 {
  font-size: 2.8rem;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-teal) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 0.3rem;
}

/* Contact Form */
.contact-form-container {
  max-width: 650px;
  margin: 0 auto;
}

.form-group {
  margin-bottom: 1.8rem;
}

.form-label {
  display: block;
  margin-bottom: 0.6rem;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-primary);
}

.form-control {
  width: 100%;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1rem 1.2rem;
  color: var(--color-primary);
  font-family: var(--font-body);
  font-size: 1rem;
  transition: all var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-indigo);
  background: rgba(255, 255, 255, 0.05);
  box-shadow: 0 0 15px rgba(99, 102, 241, 0.15);
}

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

/* Animations */
@keyframes blink {
  from, to { background-color: transparent }
  50% { background-color: #10b981 }
}

@keyframes float {
  0% { transform: translateY(0px) }
  50% { transform: translateY(-10px) }
  100% { transform: translateY(0px) }
}

.floating {
  animation: float 6s ease-in-out infinite;
}

/* Section headers */
.section-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 5rem auto;
}

.section-header h2 {
  font-size: 2.8rem;
  margin-bottom: 1.2rem;
}

.section-header p {
  font-size: 1.1rem;
}

/* Footer styling */
footer {
  background: #030206;
  border-top: 1px solid var(--border-color);
  padding: 4rem 0 2rem 0;
  color: var(--color-secondary);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 4rem;
  margin-bottom: 3rem;
}

.footer-brand p {
  margin-top: 1rem;
  max-width: 300px;
}

.footer-links h4 {
  color: var(--color-primary);
  margin-bottom: 1.2rem;
  font-size: 1.1rem;
}

.footer-links ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.footer-links a {
  color: var(--color-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
  font-size: 0.9rem;
}

/* Toast Notifications */
.toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: var(--bg-card);
  border: 1px solid var(--color-teal);
  border-radius: 12px;
  padding: 1rem 1.5rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  gap: 0.8rem;
  transform: translateY(150%);
  transition: transform var(--transition-normal);
  z-index: 1000;
}

.toast.show {
  transform: translateY(0);
}

.toast-success {
  border-color: var(--color-teal);
  color: var(--color-primary);
}

.toast-success::before {
  content: "✓";
  background: var(--color-teal);
  color: black;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  font-size: 0.8rem;
}

/* Scroll Entrance Animation Classes */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* Responsive adjustments */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
    text-align: center;
  }
  .hero-content p {
    margin-left: auto;
    margin-right: auto;
  }
  .hero-actions {
    justify-content: center;
  }
  .calculator-grid {
    grid-template-columns: 1fr;
    padding: 2.5rem;
    gap: 3rem;
  }
}

@media (max-width: 768px) {
  nav {
    display: none; /* simple burger implementation or hidden on mobile for simplicity */
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .hero-content h1 {
    font-size: 2.8rem;
  }
  section {
    padding: 5rem 0;
  }
  .simulator-container {
    height: 720px;
  }
  .simulator-body {
    grid-template-columns: 1fr;
    grid-template-rows: 320px 360px;
  }
  .terminal-view {
    border-right: none;
    border-bottom: 1px solid var(--border-color);
  }
}

/* Interactive SVG Hero Animations & Interactive States */
.orbital-ring {
  transform-origin: 250px 200px;
}

@keyframes dashflow {
  to {
    stroke-dashoffset: -40;
  }
}

.flow-line {
  animation: dashflow 2s linear infinite;
}

.flow-line-data {
  stroke-dasharray: 6 4;
}

.flow-line-api {
  stroke-dasharray: 6 4;
}

.flow-line-agent {
  stroke-dasharray: 6 4;
}

@keyframes pulseGlow {
  0%, 100% {
    transform: scale(1);
    opacity: 0.7;
  }
  50% {
    transform: scale(1.03);
    opacity: 0.95;
  }
}

#portal-glow {
  transform-origin: 250px 200px;
  animation: pulseGlow 5s ease-in-out infinite;
}

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

#portal-ring {
  transform-origin: 250px 200px;
  animation: rotateRing 25s linear infinite;
}

@keyframes swing {
  0%, 100% { transform: rotate(-15deg) scale(0.98); }
  50% { transform: rotate(-12deg) scale(1.02); }
}

.orbital-ring-1 {
  animation: swing 12s ease-in-out infinite;
}

@keyframes swing2 {
  0%, 100% { transform: rotate(25deg) scale(1.02); }
  50% { transform: rotate(22deg) scale(0.98); }
}

.orbital-ring-2 {
  animation: swing2 15s ease-in-out infinite;
}

/* Mouse hover transitions for nodes */
#node-data, #node-api, #node-agent {
  transition: transform 0.2s ease-out;
  cursor: pointer;
}

#node-data:hover circle, #node-api:hover circle, #node-agent:hover circle {
  stroke: var(--color-teal);
  fill: #110e25;
}

/* Container perspective for 3D hover tilt */
#hero-graphic-container {
  perspective: 1000px;
  transition: transform 0.5s ease-out;
}

#hero-svg {
  transition: transform 0.2s ease-out;
  transform-style: preserve-3d;
}

/* Tooltip Styling */
.hero-tooltip {
  position: absolute;
  background: rgba(13, 10, 26, 0.85);
  border: 1px solid var(--color-indigo);
  padding: 0.8rem 1.2rem;
  border-radius: 12px;
  font-size: 0.85rem;
  color: var(--color-primary);
  max-width: 260px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
  pointer-events: none;
  opacity: 0;
  transform: translateY(10px) scale(0.95);
  transition: opacity 0.3s ease, transform 0.3s ease;
  z-index: 10;
  text-align: center;
}

.hero-tooltip.show {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.hero-tooltip strong {
  display: block;
  color: var(--color-teal);
  font-family: var(--font-display);
  font-size: 0.95rem;
  margin-bottom: 0.3rem;
}