:root {
  --bg-shell: #0c0c0c;
  --bg-viewport: #000000;
  --accent-lime: #ccff00;
  --accent-emerald: #10b981;
  --text-primary: #ebebeb;
  --text-secondary: rgba(235,235,235,0.6);
  --text-muted: rgba(235,235,235,0.3);
  --glass-bg: rgba(255,255,255,0.03);
  --glass-border: rgba(255,255,255,0.1);
  --glass-border-hover: rgba(204,255,0,0.4);
  --nav-bg: rgba(12,12,12,0.8);
  --grid-color: rgba(255,255,255,0.03);
  --scrollbar-thumb: rgba(255,255,255,0.15);
  --skeleton-from: var(--glass-bg);
  --skeleton-to: rgba(255,255,255,0.05);
  --badge-muted-bg: rgba(255,255,255,0.05);
  --contrast-bg: #e5e5e5;
  --contrast-text: #000000;
  --radius-lg: 2.5rem;
  --radius-md: 1.5rem;
  --radius-sm: 1rem;
  --transition: 0.4s cubic-bezier(0.4,0,0.2,1);
  --font-heading: 'Space Grotesk', sans-serif;
  --font-body: 'Space Grotesk', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

[data-theme="light"] {
  --bg-shell: #f5f5f5;
  --bg-viewport: #ffffff;
  --text-primary: #000000;
  --text-secondary: rgba(0,0,0,0.6);
  --text-muted: rgba(0,0,0,0.3);
  --glass-bg: rgba(0,0,0,0.03);
  --glass-border: rgba(0,0,0,0.1);
  --glass-border-hover: rgba(204,255,0,0.6);
  --nav-bg: rgba(245,245,245,0.9);
  --grid-color: rgba(0,0,0,0.03);
  --scrollbar-thumb: rgba(0,0,0,0.15);
  --skeleton-from: var(--glass-bg);
  --skeleton-to: rgba(0,0,0,0.05);
  --badge-muted-bg: rgba(0,0,0,0.05);
  --contrast-bg: #0c0c0c;
  --contrast-text: #ebebeb;
}

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

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

body {
  font-family: var(--font-body);
  background-color: var(--bg-viewport);
  color: var(--text-primary);
  line-height: 1.5;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

h1,h2,h3,h4,h5,h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 0.95;
  letter-spacing: -0.06em;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

::selection {
  background: var(--accent-lime);
  color: #000000;
}

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-viewport); }
::-webkit-scrollbar-thumb { background: var(--scrollbar-thumb); border-radius: 3px; }

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.4; } }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes skeleton { 0% { background-position: -200px 0; } 100% { background-position: 200px 0; } }

.viewport {
  min-height: 100vh;
  background-color: var(--bg-viewport);
  padding: 1rem;
}

.shell {
  max-width: 1600px;
  margin: 0 auto;
  background-color: var(--bg-shell);
  border-radius: var(--radius-lg);
  box-shadow: 0 25px 50px -12px rgba(0,0,0,0.8);
  position: relative;
  overflow: hidden;
  border: 1px solid var(--glass-border);
}

.shell::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: linear-gradient(var(--grid-color) 1px, transparent 1px), linear-gradient(90deg, var(--grid-color) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: 0;
}

.glow-sphere {
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(204,255,0,0.08) 0%, transparent 70%);
  filter: blur(120px);
  pointer-events: none;
  z-index: 0;
}

.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--nav-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--glass-border);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  z-index: 2;
}

.logo-box {
  width: 40px;
  height: 40px;
  background: var(--accent-lime);
  border-radius: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #000000;
  font-weight: 700;
  font-size: 1.1rem;
}

.nav-pill {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: 9999px;
  padding: 0.5rem 1rem;
  z-index: 2;
}

.nav-pill a {
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 0.5rem 1rem;
  border-radius: 9999px;
  transition: all var(--transition);
}

.nav-pill a:hover,
.nav-pill a.active {
  color: var(--text-primary);
  background: var(--glass-bg);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 1rem;
  z-index: 2;
}

.neon-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background-color: var(--accent-lime);
  color: #000000;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.9rem;
  border-radius: 9999px;
  padding: 0.75rem 1.5rem;
  border: none;
  cursor: pointer;
  box-shadow: 0 0 30px rgba(204,255,0,0.3);
  transition: all var(--transition);
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.neon-btn:hover {
  transform: scale(1.05);
  box-shadow: 0 0 50px rgba(204,255,0,0.5);
}

.neon-btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.8rem;
}

.glass-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.9rem;
  border-radius: 9999px;
  padding: 0.75rem 1.5rem;
  cursor: pointer;
  transition: all var(--transition);
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.glass-btn:hover {
  border-color: var(--accent-lime);
  color: var(--accent-lime);
  transform: translateY(-2px);
}

.bento-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  max-width: 1400px;
  margin: 0 auto;
}

.bento-card {
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.bento-card:hover {
  border-color: var(--glass-border-hover);
  transform: translateY(-4px);
}

.bento-large { grid-column: span 2; grid-row: span 2; }
.bento-tall { grid-row: span 2; }
.bento-accent { background: var(--accent-lime); border-color: var(--accent-lime); color: #000000; }
.bento-accent:hover { border-color: #000000; }
.bento-accent .bento-title,
.bento-accent .bento-desc { color: #000000; }

.bento-icon {
  font-size: 2rem;
  color: var(--accent-lime);
  margin-bottom: 1rem;
  transition: transform var(--transition);
}

.bento-card:hover .bento-icon { transform: scale(1.1); }
.bento-accent .bento-icon { color: #000000; }

.bento-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  letter-spacing: -0.03em;
}

.bento-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.section {
  position: relative;
  padding: 4rem 2rem;
  z-index: 1;
}

.section-header {
  margin-bottom: 3rem;
  max-width: 1400px;
  margin-left: auto;
  margin-right: auto;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.25em;
  color: var(--accent-lime);
  margin-bottom: 0.75rem;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.06em;
}

.section-title span { color: var(--accent-lime); }

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

.form-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.form-input {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.9rem;
  transition: border-color var(--transition);
  outline: none;
}

.form-input:focus {
  border-color: var(--accent-lime);
}

.form-input::placeholder {
  color: var(--text-muted);
}

.form-error {
  font-size: 0.8rem;
  color: #ff4444;
  margin-top: 0.25rem;
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--accent-lime);
  animation: pulse 2s infinite;
  display: inline-block;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-lime {
  background: rgba(204,255,0,0.15);
  color: var(--accent-lime);
  border: 1px solid rgba(204,255,0,0.3);
}

.badge-emerald {
  background: rgba(16,185,129,0.15);
  color: var(--accent-emerald);
  border: 1px solid rgba(16,185,129,0.3);
}

.badge-muted {
  background: var(--badge-muted-bg);
  color: var(--text-muted);
  border: 1px solid var(--glass-border);
}

.loading-spinner {
  width: 24px;
  height: 24px;
  border: 2px solid var(--glass-border);
  border-top-color: var(--accent-lime);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  margin: 0 auto;
}

.skeleton {
  background: linear-gradient(90deg, var(--skeleton-from) 25%, var(--skeleton-to) 50%, var(--skeleton-from) 75%);
  background-size: 200px 100%;
  animation: skeleton 1.5s infinite;
  border-radius: var(--radius-sm);
}

.toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  padding: 1rem 1.5rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  z-index: 1000;
  animation: slideUp 0.3s ease;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.toast-success {
  background: rgba(16,185,129,0.9);
  color: #ffffff;
  border: 1px solid rgba(16,185,129,0.5);
}

.toast-error {
  background: rgba(255,68,68,0.9);
  color: #ffffff;
  border: 1px solid rgba(255,68,68,0.5);
}

.toast-info {
  background: rgba(204,255,0,0.9);
  color: #000000;
  border: 1px solid rgba(204,255,0,0.5);
}

@media (max-width: 1024px) {
  .bento-grid { grid-template-columns: repeat(2, 1fr); }
  .bento-large { grid-column: span 2; grid-row: span 1; }
  .bento-tall { grid-row: span 1; }
}

@media (max-width: 768px) {
  .viewport { padding: 0.5rem; }
  .nav-pill { display: none; }
  .section { padding: 3rem 1rem; }
}

@media (max-width: 640px) {
  .bento-grid { grid-template-columns: 1fr; }
  .bento-large { grid-column: span 1; }
}