/* FlashMCP Design System */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  /* Background */
  --bg-primary: #09090b;
  --bg-secondary: #0f0f13;
  --bg-card: rgba(255, 255, 255, 0.02);
  --bg-card-hover: rgba(255, 255, 255, 0.04);
  --bg-elevated: rgba(255, 255, 255, 0.06);

  /* Borders */
  --border-subtle: rgba(255, 255, 255, 0.06);
  --border-default: rgba(255, 255, 255, 0.1);
  --border-bright: rgba(255, 255, 255, 0.15);

  /* Text */
  --text-primary: #f8fafc;
  --text-secondary: #a1a1aa;
  --text-muted: #71717a;

  /* Accent - Electric Indigo/Violet */
  --accent-start: #6366f1;
  --accent-end: #a855f7;
  --accent-glow: rgba(99, 102, 241, 0.15);

  /* CTA - Amber Flash */
  --cta-bg: #f59e0b;
  --cta-hover: #fbbf24;
  --cta-text: #09090b;

  /* Status */
  --success: #22c55e;
  --error: #ef4444;
  --info: #3b82f6;

  /* Spacing */
  --nav-height: 64px;
  --container-max: 1200px;
  --container-narrow: 800px;

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

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

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  display: block;
}

/* Container */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

.container-narrow {
  max-width: var(--container-narrow);
  margin: 0 auto;
  padding: 0 24px;
}

/* Typography */
.text-gradient {
  background: linear-gradient(135deg, var(--accent-start), var(--accent-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-gradient-amber {
  background: linear-gradient(135deg, #f59e0b, #fbbf24);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

/* Navigation */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 100;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(9, 9, 11, 0.8);
  border-bottom: 1px solid var(--border-subtle);
  transition: background 0.3s ease;
}

.nav-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.2rem;
  letter-spacing: -0.03em;
}

.nav-logo .flash {
  color: var(--cta-bg);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.2s ease;
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 8px;
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all 0.2s var(--ease-out);
  white-space: nowrap;
}

.btn-primary {
  background: var(--cta-bg);
  color: var(--cta-text);
}

.btn-primary:hover {
  background: var(--cta-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(245, 158, 11, 0.3);
}

.btn-secondary {
  background: var(--bg-elevated);
  color: var(--text-primary);
  border: 1px solid var(--border-default);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--border-bright);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
}

.btn-ghost:hover {
  color: var(--text-primary);
}

.btn-large {
  padding: 14px 32px;
  font-size: 1rem;
  border-radius: 10px;
}

/* Cards */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  padding: 32px;
  transition: all 0.3s var(--ease-out);
}

.card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-default);
  transform: translateY(-2px);
}

/* Code blocks */
.code-block {
  background: #0c0c14;
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  overflow: hidden;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  line-height: 1.7;
}

.code-block-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.02);
  border-bottom: 1px solid var(--border-subtle);
}

.code-block-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--text-muted);
  opacity: 0.3;
}

.code-block-title {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-left: 8px;
  font-family: 'Inter', sans-serif;
}

.code-block pre {
  padding: 20px;
  overflow-x: auto;
  margin: 0;
}

.code-block code {
  font-family: 'JetBrains Mono', monospace;
}

/* Syntax highlighting tokens */
.tok-key { color: #a78bfa; }
.tok-str { color: #34d399; }
.tok-comment { color: #52525b; font-style: italic; }
.tok-keyword { color: #f472b6; }
.tok-method { color: #60a5fa; }
.tok-url { color: #fbbf24; }
.tok-num { color: #fb923c; }
.tok-punct { color: #71717a; }
.tok-tag { color: #f472b6; }
.tok-attr { color: #a78bfa; }
.tok-bool { color: #fb923c; }

/* Section spacing */
.section {
  padding: 120px 0;
}

.section-sm {
  padding: 80px 0;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-start);
  margin-bottom: 16px;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.03em;
}

.section-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 600px;
  line-height: 1.7;
}

/* Grid */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

/* Badge */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 500;
  background: var(--accent-glow);
  color: var(--accent-start);
  border: 1px solid rgba(99, 102, 241, 0.2);
}

/* Divider */
.divider {
  height: 1px;
  background: var(--border-subtle);
  border: none;
}

/* Glow effects */
.glow-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  pointer-events: none;
  opacity: 0.3;
}

/* Footer */
.footer {
  border-top: 1px solid var(--border-subtle);
  padding: 64px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-top: 12px;
  max-width: 300px;
}

.footer-heading {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: color 0.2s ease;
}

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

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 32px;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Form elements */
.input {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: 8px;
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  color: var(--text-primary);
  outline: none;
  transition: all 0.2s ease;
}

.input:focus {
  border-color: var(--accent-start);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

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

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
}

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

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

@keyframes pulse-glow {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 0.5; }
}

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

@keyframes shimmer {
  0% { background-position: -1000px 0; }
  100% { background-position: 1000px 0; }
}

.animate-in {
  animation: fadeInUp 0.6s var(--ease-out) forwards;
  opacity: 0;
}

.animate-in-delay-1 { animation-delay: 0.1s; }
.animate-in-delay-2 { animation-delay: 0.2s; }
.animate-in-delay-3 { animation-delay: 0.3s; }
.animate-in-delay-4 { animation-delay: 0.4s; }

/* Responsive */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .section { padding: 80px 0; }
  .section-title { font-size: 2rem; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }

  .nav-links { display: none; }

  .hero-buttons {
    flex-direction: column;
    align-items: stretch;
  }
}

@media (max-width: 480px) {
  .section { padding: 60px 0; }
  .section-title { font-size: 1.7rem; }
  .container { padding: 0 16px; }
}

/* Docs-specific styles */
.docs-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 48px;
  min-height: calc(100vh - var(--nav-height));
  padding-top: calc(var(--nav-height) + 32px);
}

.docs-sidebar {
  position: sticky;
  top: calc(var(--nav-height) + 32px);
  height: fit-content;
  padding-bottom: 32px;
}

.docs-sidebar-section {
  margin-bottom: 24px;
}

.docs-sidebar-heading {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.docs-sidebar-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.docs-sidebar-links a {
  display: block;
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: all 0.15s ease;
}

.docs-sidebar-links a:hover {
  color: var(--text-primary);
  background: var(--bg-card);
}

.docs-sidebar-links a.active {
  color: var(--accent-start);
  background: var(--accent-glow);
}

.docs-content {
  max-width: 720px;
  padding-bottom: 120px;
}

.docs-content h1 {
  font-size: 2.2rem;
  margin-bottom: 12px;
}

.docs-content h2 {
  font-size: 1.5rem;
  margin-top: 48px;
  margin-bottom: 16px;
  padding-top: 24px;
  border-top: 1px solid var(--border-subtle);
}

.docs-content h3 {
  font-size: 1.2rem;
  margin-top: 32px;
  margin-bottom: 12px;
}

.docs-content p {
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.8;
}

.docs-content ul, .docs-content ol {
  color: var(--text-secondary);
  margin-bottom: 16px;
  padding-left: 24px;
}

.docs-content li {
  margin-bottom: 8px;
  line-height: 1.7;
}

.docs-content .code-block {
  margin-bottom: 24px;
}

.docs-content table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 24px;
  font-size: 0.9rem;
}

.docs-content th {
  text-align: left;
  padding: 12px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  font-weight: 600;
  color: var(--text-primary);
}

.docs-content td {
  padding: 12px 16px;
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
}

.docs-content code:not(.code-block code) {
  background: var(--bg-elevated);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85em;
  color: #a78bfa;
}

.docs-content strong {
  color: var(--text-primary);
  font-weight: 600;
}

.docs-callout {
  padding: 16px 20px;
  border-radius: 8px;
  border-left: 3px solid var(--accent-start);
  background: var(--accent-glow);
  margin-bottom: 24px;
}

.docs-callout p {
  color: var(--text-primary);
  margin: 0;
  font-size: 0.9rem;
}

/* Dashboard-specific styles */
.dash-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  min-height: 100vh;
}

.dash-sidebar {
  background: var(--bg-secondary);
  border-right: 1px solid var(--border-subtle);
  padding: 24px 16px;
}

.dash-main {
  padding: 32px;
}

.dash-stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 24px;
}

.dash-stat-value {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.dash-stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* Auth page styles */
.auth-container {
  display: flex;
  min-height: 100vh;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.auth-card {
  width: 100%;
  max-width: 420px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  padding: 40px;
}

.auth-divider {
  display: flex;
  align-items: center;
  gap: 16px;
  margin: 24px 0;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border-subtle);
}

.social-btn {
  width: 100%;
  padding: 12px;
  border-radius: 8px;
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  font-weight: 500;
  border: 1px solid var(--border-default);
  background: var(--bg-card);
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: all 0.2s ease;
}

.social-btn:hover {
  background: var(--bg-elevated);
  border-color: var(--border-bright);
}

/* Mobile nav */
.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  padding: 8px;
}

@media (max-width: 768px) {
  .mobile-menu-btn { display: block; }
  .docs-layout { grid-template-columns: 1fr; }
  .docs-sidebar { display: none; }
  .dash-layout { grid-template-columns: 1fr; }
  /* Sidebar is styled as slide-in overlay via dashboard/index.html */
}

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

::-webkit-scrollbar-track {
  background: transparent;
}

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

::-webkit-scrollbar-thumb:hover {
  background: var(--border-bright);
}