/*
 * NordIQ AI - Main Stylesheet
 * Nordic precision, AI intelligence
 * Copyright 2025 NordIQ AI, LLC
 */

/* ============================================
   CSS Variables - Nordic Color Palette
   ============================================ */
:root {
  /* Brand Colors */
  --navy-blue: #0F172A;      /* Primary - trust, depth, intelligence */
  --ice-blue: #0EA5E9;       /* Secondary - clarity, cold precision */
  --aurora-green: #10B981;   /* Accent - Nordic lights */

  /* Neutrals */
  --white: #FFFFFF;
  --charcoal: #1E293B;       /* Body text */
  --light-gray: #F1F5F9;     /* Backgrounds */
  --medium-gray: #64748B;    /* Subtle text */

  /* Functional */
  --success: #10B981;
  --warning: #F59E0B;
  --danger: #EF4444;

  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;

  /* Layout */
  --max-width: 1280px;
  --border-radius: 8px;
  --transition: all 0.3s ease;
}

/* ============================================
   Base Styles
   ============================================ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--charcoal);
  background-color: var(--white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

h1 {
  font-size: 3rem;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 2.25rem;
  letter-spacing: -0.01em;
}

h3 {
  font-size: 1.75rem;
}

h4 {
  font-size: 1.5rem;
}

h5 {
  font-size: 1.25rem;
}

h6 {
  font-size: 1rem;
}

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

a {
  color: var(--ice-blue);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--navy-blue);
}

strong {
  font-weight: 600;
}

code {
  font-family: var(--font-mono);
  background-color: var(--light-gray);
  padding: 0.2em 0.4em;
  border-radius: 4px;
  font-size: 0.9em;
}

/* ============================================
   Layout Containers
   ============================================ */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.section {
  padding: var(--spacing-2xl) 0;
}

.section-gray {
  background-color: var(--light-gray);
}

/* ============================================
   Header / Navigation
   ============================================ */
header {
  background-color: var(--white);
  border-bottom: 1px solid var(--light-gray);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md) 0;
}

.logo {
  display: flex;
  align-items: center;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--navy-blue);
  text-decoration: none;
}

.logo-icon {
  margin-right: 0.5rem;
  font-size: 1.75rem;
}

.logo-icon img {
  height: 28px;
  width: auto;
  display: inline-block;
  vertical-align: middle;
}

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

.nav-links a {
  color: var(--charcoal);
  font-weight: 500;
  padding: 0.5rem 0;
  border-bottom: 2px solid transparent;
}

.nav-links a:hover {
  color: var(--ice-blue);
  border-bottom-color: var(--ice-blue);
}

.nav-cta {
  margin-left: var(--spacing-md);
}

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

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  text-align: center;
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}

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

.btn-primary:hover {
  background-color: var(--navy-blue);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(14, 165, 233, 0.3);
}

.btn-secondary {
  background-color: transparent;
  color: var(--ice-blue);
  border: 2px solid var(--ice-blue);
}

.btn-secondary:hover {
  background-color: var(--ice-blue);
  color: var(--white);
}

.btn-large {
  padding: 1rem 2rem;
  font-size: 1.125rem;
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
  background:
    linear-gradient(135deg, rgba(20, 30, 48, 0.92) 0%, rgba(30, 58, 95, 0.85) 100%),
    url('../images/hero.png') center/cover no-repeat;
  color: var(--white);
  padding: var(--spacing-2xl) 0;
  min-height: 600px;
  display: flex;
  align-items: center;
  position: relative;
}

.hero-content {
  max-width: 800px;
}

.hero h1 {
  color: var(--white);
  font-size: 3.5rem;
  margin-bottom: var(--spacing-md);
}

.hero p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.25rem;
  margin-bottom: var(--spacing-lg);
}

.hero-cta {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-xl);
}

/* ============================================
   Feature Grid
   ============================================ */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.feature-card {
  background-color: var(--white);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius);
  border: 1px solid var(--light-gray);
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
  border-color: var(--ice-blue);
}

.feature-icon {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-sm);
}

.feature-card h3 {
  margin-bottom: var(--spacing-sm);
}

.feature-card p {
  color: var(--medium-gray);
  margin-bottom: 0;
}

/* ============================================
   Pricing Cards
   ============================================ */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.pricing-card {
  background-color: var(--white);
  border: 2px solid var(--light-gray);
  border-radius: var(--border-radius);
  padding: var(--spacing-xl);
  text-align: center;
  transition: var(--transition);
}

.pricing-card:hover {
  border-color: var(--ice-blue);
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.1);
}

.pricing-card.featured {
  border-color: var(--ice-blue);
  border-width: 3px;
  position: relative;
}

.pricing-card.featured::before {
  content: "MOST POPULAR";
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--ice-blue);
  color: var(--white);
  padding: 0.25rem 1rem;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.pricing-tier {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--ice-blue);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--spacing-sm);
}

.pricing-price {
  font-size: 3rem;
  font-weight: 700;
  color: var(--navy-blue);
  margin-bottom: var(--spacing-xs);
}

.pricing-price span {
  font-size: 1rem;
  color: var(--medium-gray);
  font-weight: 400;
}

.pricing-description {
  color: var(--medium-gray);
  margin-bottom: var(--spacing-lg);
}

.pricing-features {
  list-style: none;
  text-align: left;
  margin-bottom: var(--spacing-lg);
}

.pricing-features li {
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--light-gray);
}

.pricing-features li:last-child {
  border-bottom: none;
}

.pricing-features li::before {
  content: "✓";
  color: var(--aurora-green);
  font-weight: 700;
  margin-right: 0.5rem;
}

/* ============================================
   Stats / Metrics
   ============================================ */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-lg);
  text-align: center;
  margin-top: var(--spacing-xl);
}

.stat-item {
  padding: var(--spacing-md);
}

.stat-value {
  font-size: 3rem;
  font-weight: 700;
  color: var(--ice-blue);
  line-height: 1;
  margin-bottom: var(--spacing-xs);
}

.stat-label {
  color: var(--medium-gray);
  font-size: 1rem;
}

/* ============================================
   Screenshot Gallery
   ============================================ */
.screenshot-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

.screenshot-item {
  background-color: var(--white);
  border: 1px solid #e0e0e0;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.screenshot-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.screenshot-item img {
  width: 100%;
  height: auto;
  display: block;
  border-bottom: 1px solid #e0e0e0;
}

.screenshot-caption {
  padding: var(--spacing-md);
  color: var(--dark-gray);
  font-size: 0.95rem;
  line-height: 1.5;
}

.screenshot-caption strong {
  color: var(--navy-blue);
}

/* ============================================
   Contact Section
   ============================================ */
.contact-box {
  background-color: var(--light-gray);
  border: 2px solid var(--ice-blue);
  border-radius: var(--border-radius);
  padding: var(--spacing-xl);
  text-align: center;
  max-width: 600px;
  margin: var(--spacing-xl) auto;
}

.contact-email {
  font-size: 2rem;
  font-weight: 700;
  color: var(--ice-blue);
  margin: var(--spacing-md) 0;
}

.contact-email:hover {
  color: var(--navy-blue);
}

/* ============================================
   Footer
   ============================================ */
footer {
  background-color: var(--navy-blue);
  color: rgba(255, 255, 255, 0.8);
  padding: var(--spacing-xl) 0 var(--spacing-md);
}

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

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

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

.footer-links li {
  margin-bottom: 0.5rem;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.8);
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--spacing-md);
  text-align: center;
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.875rem;
}

.footer-tagline {
  color: var(--ice-blue);
  font-style: italic;
  margin-top: var(--spacing-xs);
}

.footer-section h4 img {
  height: 22px;
  width: auto;
  display: inline-block;
  vertical-align: middle;
  margin-right: 0.5rem;
}

.large-logo {
  max-width: 120px;
  height: auto;
  display: block;
  margin: 0 auto 1rem;
}

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

/* Tablet */
@media (max-width: 1024px) {
  h1 { font-size: 2.5rem; }
  h2 { font-size: 2rem; }

  .hero h1 { font-size: 2.75rem; }
  .hero { min-height: 500px; }
}

/* Mobile */
@media (max-width: 768px) {
  h1 { font-size: 2rem; }
  h2 { font-size: 1.75rem; }

  .hero h1 { font-size: 2rem; }
  .hero p { font-size: 1.125rem; }
  .hero { min-height: auto; padding: var(--spacing-xl) 0; }

  .hero-cta {
    flex-direction: column;
  }

  .nav-links {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--white);
    border-bottom: 1px solid var(--light-gray);
    padding: var(--spacing-md);
    gap: var(--spacing-sm);
  }

  .nav-links.active {
    display: flex;
  }

  .menu-toggle {
    display: block;
  }

  .feature-grid,
  .pricing-grid,
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .pricing-price {
    font-size: 2.5rem;
  }

  .stat-value {
    font-size: 2.5rem;
  }

  .contact-email {
    font-size: 1.5rem;
  }
}

/* ============================================
   Utility Classes
   ============================================ */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.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); }

.color-ice-blue { color: var(--ice-blue); }
.color-navy { color: var(--navy-blue); }
.color-green { color: var(--aurora-green); }

/* ============================================
   Animations
   ============================================ */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-up {
  animation: fadeInUp 0.6s ease-out;
}

/* ============================================
   Buy Me a Coffee Floating Button
   ============================================ */
.bmc-button {
  position: fixed;
  bottom: 30px;
  right: 30px;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px 28px;
  background: linear-gradient(135deg, #FFDD00 0%, #FF813F 100%);
  color: #000;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.1rem;
  box-shadow: 0 8px 30px rgba(255, 129, 63, 0.5), 0 0 0 4px rgba(255, 221, 0, 0.3);
  transition: all 0.3s ease;
  z-index: 1000;
  animation: bmc-pulse 2s ease-in-out infinite;
}

@keyframes bmc-pulse {
  0%, 100% { box-shadow: 0 8px 30px rgba(255, 129, 63, 0.5), 0 0 0 4px rgba(255, 221, 0, 0.3); }
  50% { box-shadow: 0 8px 40px rgba(255, 129, 63, 0.7), 0 0 0 8px rgba(255, 221, 0, 0.2); }
}

.bmc-button:hover {
  transform: translateY(-5px) scale(1.05);
  box-shadow: 0 12px 40px rgba(255, 129, 63, 0.6), 0 0 0 6px rgba(255, 221, 0, 0.4);
  text-decoration: none;
  color: #000;
  animation: none;
}

.bmc-icon {
  font-size: 1.5rem;
}

.bmc-text {
  white-space: nowrap;
}

@media (max-width: 480px) {
  .bmc-button {
    padding: 16px 20px;
    bottom: 20px;
    right: 20px;
  }
  .bmc-text {
    display: none;
  }
}