:root {
  --n-bg: #08090b;
  --n-surface: #0e1014;
  --n-surface-2: #14171c;
  --n-surface-3: #1b1f26;
  --n-line: rgba(255, 255, 255, 0.06);
  --n-line-strong: rgba(255, 255, 255, 0.1);
  --n-fg: #f2f4f7;
  --n-fg-2: #a8aeb8;
  --n-fg-3: #6b7280;
  --n-fg-4: #454b54;
  --n-blue: #2ea8ff;
  --n-blue-deep: #0e78c4;
  --n-blue-soft: rgba(46, 168, 255, 0.12);
  --n-red: #e5383b;
  --n-red-soft: rgba(229, 56, 59, 0.14);
  --n-green: #3fb950;
  --n-green-soft: rgba(63, 185, 80, 0.14);
  --n-yellow: #f5c542;
  --n-yellow-soft: rgba(245, 197, 66, 0.14);
  --n-purple: #9d7bff;
  --n-radius: 8px;
  --n-font-ui: "Space Grotesk", system-ui, sans-serif;
  --n-font-mono: "JetBrains Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; }
html, body { min-height: 100%; background: var(--n-bg); }
body.nclub-body { margin: 0; color: var(--n-fg); font-family: var(--n-font-ui); letter-spacing: 0; }
a { color: inherit; text-decoration: none; }
svg { width: 1em; height: 1em; flex-shrink: 0; }
::selection { background: rgba(46, 168, 255, 0.28); color: #fff; }
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--n-bg); }
::-webkit-scrollbar-thumb { background: var(--n-surface-3); border-radius: 4px; }
*:focus-visible { outline: 2px solid var(--n-blue); outline-offset: 2px; }
.htmx-indicator { opacity: 0; transition: opacity 180ms ease-in; }
.htmx-request .htmx-indicator { opacity: 1; }

.app-shell { min-height: 100vh; display: flex; background: var(--n-bg); }
.app-sidebar {
  position: sticky; top: 0; width: 232px; height: 100vh; flex-shrink: 0;
  display: flex; flex-direction: column; padding: 18px 16px 14px;
  background: var(--n-surface); border-right: 1px solid var(--n-line);
}
.brand { display: flex; align-items: center; gap: 10px; padding: 0 4px 18px; border-bottom: 1px solid var(--n-line); margin-bottom: 14px; }
.brand-mark {
  width: 32px; height: 32px; border-radius: 6px; display: grid; place-items: center;
  background: var(--n-surface-2); border: 1px solid var(--n-line-strong);
  color: var(--n-fg); font-family: var(--n-font-mono); font-weight: 700;
}
.brand-title { display: block; margin: 0; color: var(--n-fg); font-size: 14px; font-weight: 600; line-height: 1; }
.brand-title span { color: var(--n-blue); }
.brand-subtitle { display: block; margin-top: 4px; color: var(--n-fg-3); font-family: var(--n-font-mono); font-size: 9px; letter-spacing: 0.08em; }
.nav-section-label { padding: 4px 12px 6px; color: var(--n-fg-4); font-family: var(--n-font-mono); font-size: 10px; letter-spacing: 0.08em; }
.side-nav { display: flex; flex-direction: column; gap: 1px; }
.side-nav-link {
  position: relative; display: flex; align-items: center; gap: 10px; min-height: 34px;
  padding: 8px 10px; border-radius: 6px; color: var(--n-fg-2); font-size: 13px; line-height: 1.2;
}
.side-nav-link:hover, .side-nav-link.is-active { background: var(--n-surface-3); color: var(--n-fg); }
.side-nav-link.is-active::before {
  content: ""; position: absolute; left: -12px; top: 8px; bottom: 8px; width: 2px; border-radius: 2px; background: var(--n-blue);
}
.side-nav-icon { width: 18px; color: var(--n-fg-3); text-align: center; }
.side-nav-link.is-active .side-nav-icon { color: var(--n-blue); }
.user-chip {
  display: flex; align-items: center; gap: 10px; padding: 10px; border-radius: var(--n-radius);
  background: var(--n-surface-2); border: 1px solid var(--n-line);
}
.avatar {
  width: 32px; height: 32px; flex-shrink: 0; display: grid; place-items: center; border-radius: 6px;
  background: linear-gradient(135deg, var(--n-blue-deep), var(--n-blue));
  color: #fff; font-family: var(--n-font-mono); font-size: 12px; font-weight: 700; text-transform: uppercase;
}
.app-main { min-width: 0; flex: 1; display: flex; flex-direction: column; }
.app-topbar {
  min-height: 64px; display: flex; align-items: center; gap: 16px; padding: 14px 24px;
  border-bottom: 1px solid var(--n-line); background: rgba(8, 9, 11, 0.96); backdrop-filter: blur(16px);
}
.page-kicker, .section-kicker { color: var(--n-fg-3); font-family: var(--n-font-mono); font-size: 10px; letter-spacing: 0.08em; text-transform: uppercase; }
.page-title { margin: 0; color: var(--n-fg); font-size: 22px; font-weight: 600; line-height: 1.15; }
.page-subtitle { margin-top: 4px; color: var(--n-fg-3); font-family: var(--n-font-mono); font-size: 11px; }
.topbar-search {
  width: min(320px, 36vw); display: flex; align-items: center; gap: 8px; padding: 7px 12px;
  border-radius: 6px; background: var(--n-surface); border: 1px solid var(--n-line); color: var(--n-fg-3);
}
.topbar-search input { width: 100%; border: 0; outline: 0; background: transparent; color: var(--n-fg); font: inherit; font-size: 13px; }
.app-content { width: 100%; max-width: 1220px; margin: 0 auto; padding: 24px; }
.app-content.is-wide { max-width: none; }
.mobile-topbar, .mobile-bottom-nav { display: none; }

.n-card { background: var(--n-surface-2); border: 1px solid var(--n-line); border-radius: var(--n-radius); }
.n-card-hover { transition: border-color 160ms ease, background 160ms ease, transform 160ms ease; }
.n-card-hover:hover { border-color: rgba(46, 168, 255, 0.42); background: var(--n-surface-3); transform: translateY(-1px); }
.n-panel { padding: 18px; background: var(--n-surface); border: 1px solid var(--n-line); border-radius: var(--n-radius); }
.section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; margin-bottom: 14px; }
.section-title { margin: 3px 0 0; color: var(--n-fg); font-size: 17px; font-weight: 600; line-height: 1.2; }
.n-grid { display: grid; gap: 14px; }
.n-grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.n-grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.n-grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 34px;
  padding: 8px 12px; border-radius: 6px; border: 1px solid var(--n-line-strong);
  background: var(--n-surface-2); color: var(--n-fg); font-family: var(--n-font-ui);
  font-size: 13px; font-weight: 600; line-height: 1; cursor: pointer;
}
.btn:hover { border-color: rgba(46, 168, 255, 0.45); }
.btn-primary { border-color: transparent; background: var(--n-blue); color: #04111e; }
.btn-ghost { background: transparent; }
.chip, .model-chip {
  display: inline-flex; align-items: center; gap: 6px; min-height: 26px; padding: 5px 9px;
  border-radius: 999px; background: var(--n-surface); border: 1px solid var(--n-line);
  color: var(--n-fg-2); font-size: 12px; line-height: 1;
}
.chip.is-active, .model-chip.is-active { border-color: rgba(46, 168, 255, 0.55); background: var(--n-blue-soft); color: var(--n-blue); }
.metric-card { padding: 15px; min-height: 98px; }
.metric-value { color: var(--n-fg); font-family: var(--n-font-mono); font-size: 28px; font-weight: 700; line-height: 1; }
.metric-label { margin-top: 8px; color: var(--n-fg-3); font-size: 12px; }
.muted { color: var(--n-fg-3); }
.mono { font-family: var(--n-font-mono); }
.media-ph {
  min-height: 120px; border-radius: var(--n-radius); border: 1px solid var(--n-line);
  background: linear-gradient(135deg, rgba(46, 168, 255, 0.2), rgba(8, 9, 11, 0.1)), radial-gradient(circle at 25% 20%, rgba(255, 255, 255, 0.12), transparent 28%), var(--n-surface-3);
}
.form-control {
  width: 100%; min-height: 38px; padding: 9px 11px; border-radius: 6px;
  border: 1px solid var(--n-line-strong); background: var(--n-surface); color: var(--n-fg); font: inherit; font-size: 14px;
}
.form-control::placeholder { color: var(--n-fg-3); }
.form-control:focus { border-color: var(--n-blue); outline: 0; }
.flash-stack { padding: 16px 24px 0; }
.flash-message {
  max-width: 1220px; margin: 0 auto 8px; padding: 10px 12px; border-radius: 6px;
  border: 1px solid var(--n-line); background: var(--n-surface-2); color: var(--n-fg-2); font-size: 13px;
  animation: fade-in 220ms ease-out, fade-out 300ms ease-in 4.7s forwards;
}
.flash-message.success { border-color: rgba(63, 185, 80, 0.34); background: var(--n-green-soft); color: #b7f7c0; }
.flash-message.error { border-color: rgba(229, 56, 59, 0.34); background: var(--n-red-soft); color: #ffb4b6; }

.prose-n { color: var(--n-fg-2); line-height: 1.75; }
.prose-n h1, .prose-n h2, .prose-n h3, .prose-n h4 { color: var(--n-fg); font-weight: 600; line-height: 1.2; margin: 1.5em 0 0.55em; }
.prose-n h1 { font-size: 1.7rem; }
.prose-n h2 { font-size: 1.35rem; border-bottom: 1px solid var(--n-line); padding-bottom: 0.45em; }
.prose-n h3 { font-size: 1.1rem; }
.prose-n p { margin: 0 0 1em; }
.prose-n ul, .prose-n ol { padding-left: 1.35em; margin: 0 0 1em; }
.prose-n li { margin-bottom: 0.35em; }
.prose-n a { color: var(--n-blue); text-decoration: underline; text-underline-offset: 2px; }
.prose-n code { padding: 0.15em 0.38em; border-radius: 4px; border: 1px solid var(--n-line); background: var(--n-surface); color: #b6dcff; font-size: 0.9em; }
.prose-n pre { padding: 1em; overflow-x: auto; border-radius: var(--n-radius); border: 1px solid var(--n-line); background: var(--n-surface); }
.prose-n pre code { padding: 0; border: 0; background: transparent; color: var(--n-fg); }
.prose-n table { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
.prose-n th, .prose-n td { padding: 0.6em 0.75em; border: 1px solid var(--n-line); }
.prose-n th { color: var(--n-fg); background: var(--n-surface); text-align: left; }
.prose-n blockquote { margin: 1em 0; padding-left: 1em; border-left: 3px solid var(--n-blue); color: var(--n-fg-2); }

@keyframes fade-in { from { opacity: 0; transform: translateY(-8px); } to { opacity: 1; transform: translateY(0); } }
@keyframes fade-out { from { opacity: 1; } to { opacity: 0; } }

@media (max-width: 1020px) {
  .app-sidebar, .app-topbar { display: none; }
  .app-shell { display: block; min-height: 100vh; padding-bottom: 76px; }
  .mobile-topbar {
    position: sticky; top: 0; z-index: 40; min-height: 56px; display: flex; align-items: center;
    justify-content: space-between; gap: 12px; padding: 12px 16px;
    background: rgba(8, 9, 11, 0.96); border-bottom: 1px solid var(--n-line); backdrop-filter: blur(16px);
  }
  .mobile-bottom-nav {
    position: fixed; left: 0; right: 0; bottom: 0; z-index: 50; display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 2px; padding: 8px 8px 10px;
    background: rgba(14, 16, 20, 0.97); border-top: 1px solid var(--n-line); backdrop-filter: blur(18px);
  }
  .mobile-tab { min-width: 0; display: flex; flex-direction: column; align-items: center; gap: 3px; padding: 6px 2px; border-radius: 7px; color: var(--n-fg-3); font-size: 10px; line-height: 1; }
  .mobile-tab.is-active { background: var(--n-blue-soft); color: var(--n-blue); }
  .app-content { padding: 18px 14px 24px; }
  .topbar-search { display: none; }
  .n-grid-2, .n-grid-3, .n-grid-4 { grid-template-columns: 1fr; }
  .section-head { align-items: flex-start; flex-direction: column; }
}

@media (min-width: 720px) and (max-width: 1020px) {
  .n-grid-2, .n-grid-3, .n-grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}