/* Krystal Unity Corporation - Main Stylesheet */

/* Tailwind CSS - Using CDN for now, can build later */
@import url('https://cdn.jsdelivr.net/npm/tailwindcss@3.4.1/base.min.css');

/* Custom Properties */
:root {
  /* Colors - Dark theme with cyan accents */
  --color-primary-dark: #0a1929;
  --color-primary-darker: #050d16;
  --color-accent-cyan: #00d4ff;
  --color-accent-blue: #5eb3e4;
  --color-text-primary: #ffffff;
  --color-text-secondary: #a0aec0;
  --color-glow: rgba(0, 212, 255, 0.4);

  /* Typography */
  --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;

  /* Spacing */
  --nav-height: 80px;

  /* Effects */
  --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition-base);
}

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

/* Utility Classes */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

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

.glow-effect {
  box-shadow: 0 0 20px var(--color-glow), 0 0 40px var(--color-glow);
}

.btn-primary {
  display: inline-block;
  padding: 1rem 2rem;
  background: linear-gradient(135deg, var(--color-accent-cyan), var(--color-accent-blue));
  color: white;
  border-radius: 0.5rem;
  font-weight: 600;
  transition: var(--transition-base);
  border: none;
  cursor: pointer;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 212, 255, 0.3);
}

.btn-secondary {
  display: inline-block;
  padding: 1rem 2rem;
  background: transparent;
  color: var(--color-accent-cyan);
  border: 2px solid var(--color-accent-cyan);
  border-radius: 0.5rem;
  font-weight: 600;
  transition: var(--transition-base);
}

.btn-secondary:hover {
  background: var(--color-accent-cyan);
  color: var(--color-primary-dark);
}

/* Navigation */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: rgba(10, 25, 41, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0, 212, 255, 0.1);
  z-index: 1000;
  display: flex;
  align-items: center;
  padding: 0 2rem;
}

.nav-logo {
  height: 50px;
  width: auto;
  transition: var(--transition-base);
}

.nav-logo:hover {
  transform: scale(1.05);
  filter: drop-shadow(0 0 10px var(--color-glow));
}

.nav-links {
  display: flex;
  gap: 2rem;
  margin-left: auto;
  list-style: none;
}

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent-cyan);
  transition: width 0.3s ease;
}

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

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

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-top: var(--nav-height);
  position: relative;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  opacity: 0.3;
  background:
    radial-gradient(circle at 20% 50%, rgba(0, 212, 255, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 50%, rgba(94, 179, 228, 0.1) 0%, transparent 50%);
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero h1 {
  font-size: clamp(2.5rem, 8vw, 5rem);
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.hero p {
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  color: var(--color-text-secondary);
  margin-bottom: 2rem;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

/* Cards */
.card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 1rem;
  padding: 2rem;
  transition: var(--transition-base);
}

.card:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--color-accent-cyan);
  transform: translateY(-5px);
}

.card h3 {
  color: var(--color-accent-cyan);
  margin-bottom: 1rem;
  font-size: 1.5rem;
}

.card p {
  color: var(--color-text-secondary);
  line-height: 1.8;
}

/* Grid Layouts */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  padding: 4rem 0;
}

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

.section-title {
  font-size: clamp(2rem, 5vw, 3rem);
  margin-bottom: 1rem;
  text-align: center;
}

.section-subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--color-text-secondary);
  text-align: center;
  margin-bottom: 3rem;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

/* Footer */
.footer {
  background: var(--color-primary-darker);
  border-top: 1px solid rgba(0, 212, 255, 0.1);
  padding: 3rem 0;
  margin-top: 4rem;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 2rem;
}

.footer-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

/* Forms */
.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--color-text-primary);
  font-weight: 500;
}

.form-input,
.form-textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 0.5rem;
  color: var(--color-text-primary);
  font-family: var(--font-body);
  font-size: 1rem;
  transition: var(--transition-base);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-accent-cyan);
  box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}

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

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

.animate-fadeInUp {
  animation: fadeInUp 0.6s ease-out;
}

/* Loading States */
.htmx-request .htmx-indicator {
  display: inline-block;
}

.htmx-indicator {
  display: none;
}

/* Mobile Responsive */
@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: var(--color-primary-dark);
    flex-direction: column;
    padding: 2rem;
    transform: translateY(-100%);
    transition: var(--transition-base);
  }

  .nav-links.active {
    transform: translateY(0);
  }

  .section {
    padding: 3rem 0;
  }

  .grid-3 {
    grid-template-columns: 1fr;
  }
}

/* Accessibility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* HTMX Transitions */
.htmx-swapping {
  opacity: 0;
  transition: opacity 200ms ease-out;
}

.htmx-settling {
  opacity: 1;
  transition: opacity 200ms ease-in;
}