/* ===== Reishi Technology - Global Styles ===== */
/* Design: Deep-Sea Tech Minimalism */
/* Colors: Dark (#0d1117), Green accent (#4ade80), Card (#1e2d3d) */
/* Fonts: Space Grotesk (headings), Manrope (body) */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Manrope:wght@400;500;600;700&display=swap');

:root {
  /* Colors - OKLCH Format */
  --bg-primary: oklch(0.11 0.012 240);
  --bg-secondary: oklch(0.14 0.013 240);
  --bg-tertiary: oklch(0.09 0.01 240);
  --bg-card: oklch(0.16 0.015 240);
  --bg-card-hover: oklch(0.20 0.018 240);
  
  --text-primary: oklch(0.95 0.005 240);
  --text-secondary: oklch(0.75 0.01 240);
  --text-muted: oklch(0.60 0.01 240);
  
  --accent-green: oklch(0.82 0.18 145);
  --accent-teal: oklch(0.75 0.15 195);
  --accent-gold: oklch(0.78 0.16 75);
  
  --border-color: oklch(0.25 0.02 240);
  --border-color-accent: oklch(0.82 0.18 145 / 0.3);
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.625rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 300ms ease;
  --transition-slow: 600ms ease;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Manrope', system-ui, -apple-system, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Space Grotesk', system-ui, -apple-system, sans-serif;
  font-weight: 700;
  line-height: 1.2;
}

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

button, [role="button"] {
  cursor: pointer;
  border: none;
  font-family: inherit;
  transition: all var(--transition-base);
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

/* ===== Container ===== */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

@media (min-width: 640px) {
  .container {
    padding: 0 var(--spacing-lg);
  }
}

@media (min-width: 1024px) {
  .container {
    padding: 0 var(--spacing-xl);
  }
}

/* ===== Utility Classes ===== */
.flex {
  display: flex;
}

.flex-col {
  flex-direction: column;
}

.items-center {
  align-items: center;
}

.items-start {
  align-items: flex-start;
}

.justify-center {
  justify-content: center;
}

.justify-between {
  justify-content: space-between;
}

.gap-1 { gap: var(--spacing-sm); }
.gap-2 { gap: var(--spacing-md); }
.gap-3 { gap: var(--spacing-lg); }
.gap-4 { gap: var(--spacing-xl); }
.gap-6 { gap: var(--spacing-2xl); }

.grid {
  display: grid;
}

.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }

@media (min-width: 768px) {
  .md\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .md\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (min-width: 1024px) {
  .lg\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .lg\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .lg\:grid-cols-5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }
  .lg\:grid-cols-6 { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .lg\:col-span-2 { grid-column: span 2; }
}

.text-center { text-align: center; }
.text-right { text-align: right; }

/* ===== Typography ===== */
.text-sm { font-size: 0.875rem; }
.text-base { font-size: 1rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }
.text-2xl { font-size: 1.5rem; }
.text-3xl { font-size: 1.875rem; }
.text-4xl { font-size: 2.25rem; }
.text-5xl { font-size: 3rem; }
.text-6xl { font-size: 3.75rem; }

.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }

.leading-tight { line-height: 1.2; }
.leading-relaxed { line-height: 1.625; }

/* ===== Spacing ===== */
.p-4 { padding: var(--spacing-md); }
.p-5 { padding: 1.25rem; }
.p-6 { padding: var(--spacing-xl); }
.p-8 { padding: 2rem; }
.p-12 { padding: 3rem; }

.px-4 { padding-left: var(--spacing-md); padding-right: var(--spacing-md); }
.px-5 { padding-left: 1.25rem; padding-right: 1.25rem; }
.px-6 { padding-left: var(--spacing-xl); padding-right: var(--spacing-xl); }
.px-7 { padding-left: 1.75rem; padding-right: 1.75rem; }
.px-8 { padding-left: 2rem; padding-right: 2rem; }

.py-2 { padding-top: 0.5rem; padding-bottom: 0.5rem; }
.py-3 { padding-top: 0.75rem; padding-bottom: 0.75rem; }
.py-4 { padding-top: var(--spacing-md); padding-bottom: var(--spacing-md); }
.py-6 { padding-top: var(--spacing-xl); padding-bottom: var(--spacing-xl); }
.py-8 { padding-top: 2rem; padding-bottom: 2rem; }
.py-16 { padding-top: 4rem; padding-bottom: 4rem; }
.py-24 { padding-top: 6rem; padding-bottom: 6rem; }

.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-md); }
.mb-6 { margin-bottom: var(--spacing-xl); }
.mb-8 { margin-bottom: 2rem; }
.mb-10 { margin-bottom: 2.5rem; }
.mb-12 { margin-bottom: 3rem; }

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-md); }
.mt-6 { margin-top: var(--spacing-xl); }
.mt-8 { margin-top: 2rem; }

.mx-auto { margin-left: auto; margin-right: auto; }

/* ===== Reishi Custom Components ===== */
.reishi-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

.reishi-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent-green);
  box-shadow: 0 0 20px oklch(0.82 0.18 145 / 0.1);
  transform: translateY(-2px);
}

.reishi-tag {
  display: inline-flex;
  align-items: center;
  padding: var(--spacing-xs) 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 500;
  background: oklch(0.82 0.18 145 / 0.15);
  color: var(--accent-green);
  border: 1px solid oklch(0.82 0.18 145 / 0.3);
}

.reishi-section-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent-green);
}

.reishi-divider {
  width: 3rem;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-green), var(--accent-teal));
  border-radius: 1px;
}

.reishi-icon-box {
  width: 3rem;
  height: 3rem;
  border-radius: var(--radius-md);
  background: oklch(0.82 0.18 145 / 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-green);
  flex-shrink: 0;
}

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

.hero-bg-overlay {
  background: linear-gradient(
    135deg,
    oklch(0.11 0.012 240 / 0.92) 0%,
    oklch(0.11 0.012 240 / 0.75) 50%,
    oklch(0.11 0.012 240 / 0.85) 100%
  );
}

.section-bg-alt {
  background: var(--bg-secondary);
}

.nav-blur {
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  background: oklch(0.11 0.012 240 / 0.85);
  border-bottom: 1px solid oklch(0.25 0.02 240 / 0.5);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: 0.875rem 1.75rem;
  border-radius: var(--radius-lg);
  font-weight: 600;
  font-size: 0.875rem;
  transition: all var(--transition-base);
}

.btn-primary {
  background: var(--accent-green);
  color: var(--bg-primary);
  box-shadow: 0 0 30px oklch(0.82 0.18 145 / 0.3);
}

.btn-primary:hover {
  background: oklch(0.88 0.16 145);
}

.btn-secondary {
  border: 1px solid oklch(1 0 0 / 0.2);
  color: var(--text-primary);
}

.btn-secondary:hover {
  background: oklch(1 0 0 / 0.1);
}

/* ===== Forms ===== */
.form-input {
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-lg);
  background: oklch(1 0 0 / 0.05);
  border: 1px solid oklch(1 0 0 / 0.1);
  color: var(--text-primary);
  font-size: 0.875rem;
  transition: all var(--transition-base);
}

.form-input::placeholder {
  color: oklch(1 0 0 / 0.3);
}

.form-input:focus {
  outline: none;
  border-color: oklch(0.82 0.18 145 / 0.6);
  background: oklch(1 0 0 / 0.08);
}

.form-label {
  display: block;
  font-size: 0.75rem;
  color: oklch(1 0 0 / 0.5);
  margin-bottom: var(--spacing-sm);
  font-weight: 500;
}

/* ===== Animation Classes ===== */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

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

@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

.animate-bounce {
  animation: bounce 2s infinite;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .hidden-mobile {
    display: none;
  }
  
  .text-5xl { font-size: 2.25rem; }
  .text-6xl { font-size: 2.5rem; }
}

@media (min-width: 769px) {
  .hidden-desktop {
    display: none;
  }
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent-green);
}