/* evotools — shared design system. Loaded by every tool + the hub. */
:root {
  --blue: #008de4;
  --blue-dark: #0070b8;
  --bg: #0f1524;
  --bg-2: #16213e;
  --card: rgba(255, 255, 255, 0.04);
  --border: rgba(255, 255, 255, 0.10);
  --text: #e6e9ef;
  --muted: #9aa4b8;
  --ok: #28a745;
  --warn: #ffc107;
  --danger: #ff5c6c;
  --mono: 'SF Mono', 'Monaco', 'Consolas', 'Liberation Mono', monospace;
  --maxw: 680px;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Ubuntu, sans-serif;
  /* layers front→back: blue hero glow, a softer second glow, a faint dot grid, the base gradient */
  background:
    radial-gradient(1000px 520px at 50% -6%, rgba(0, 141, 228, 0.16), transparent 60%),
    radial-gradient(820px 460px at 90% 2%, rgba(0, 141, 228, 0.07), transparent 55%),
    radial-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(160deg, var(--bg) 0%, var(--bg-2) 100%);
  background-repeat: no-repeat, no-repeat, repeat, no-repeat;
  background-size: auto, auto, 24px 24px, auto;
  min-height: 100vh;
  color: var(--text);
  line-height: 1.55;
}

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 28px 16px 8px; }

a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }

code {
  font-family: var(--mono);
  background: rgba(0, 0, 0, 0.3);
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 0.9em;
}
.mono { font-family: var(--mono); }

/* ── shared top nav (injected by shared/nav.js) ───────────────────────────── */
.evo-nav {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 20px;
  background: rgba(15, 21, 36, 0.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.evo-nav .brand { display: flex; align-items: center; gap: 9px; font-weight: 700; font-size: 1.05rem; color: var(--text); }
.evo-nav .brand:hover { text-decoration: none; }
.evo-nav .brand .logo { display: inline-flex; color: var(--blue); }
.evo-nav .brand .logo svg { width: 23px; height: 23px; display: block; }
.evo-nav .brand .ev { color: var(--blue); }
.evo-nav .brand .tld { color: var(--muted); font-weight: 500; }
.evo-nav .links { display: flex; align-items: center; gap: 16px; font-size: 0.88rem; }
.evo-nav .links a { color: var(--muted); }
.evo-nav .links a:hover { color: var(--text); text-decoration: none; }
/* hamburger button — hidden on desktop, shown on narrow screens */
.evo-nav .nav-toggle {
  display: none; flex-direction: column; justify-content: center; gap: 5px;
  width: 40px; height: 36px; padding: 8px; cursor: pointer;
  background: transparent; border: 1px solid var(--border); border-radius: 8px;
}
.evo-nav .nav-toggle span {
  display: block; width: 100%; height: 2px; border-radius: 2px; background: var(--text);
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.evo-nav.open .nav-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.evo-nav.open .nav-toggle span:nth-child(2) { opacity: 0; }
.evo-nav.open .nav-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Below 760px the links collapse into a dropdown under the bar. */
@media (max-width: 760px) {
  .evo-nav { flex-wrap: wrap; }
  .evo-nav .nav-toggle { display: flex; }
  .evo-nav .links {
    order: 3; flex-basis: 100%; display: none;
    flex-direction: column; align-items: flex-start; gap: 2px; padding-top: 8px;
  }
  .evo-nav.open .links { display: flex; }
  .evo-nav .links a { width: 100%; padding: 11px 4px; }
  .evo-nav .links a.hide-sm { display: block; }
}

/* ── shared footer (injected by shared/nav.js) ────────────────────────────── */
.evo-footer {
  text-align: center; color: var(--muted); font-size: 0.8rem;
  padding: 28px 20px; margin-top: 32px; border-top: 1px solid var(--border);
}
.evo-footer a { color: var(--muted); }
.evo-footer .built-on { margin-bottom: 8px; }

/* ── official Dash logo + "Built on Dash" ─────────────────────────────────── */
.dash-logo { display: inline-flex; align-items: center; color: var(--blue); }
.dash-logo svg { height: 15px; width: auto; fill: currentColor; display: block; }
.built-on { display: inline-flex; align-items: center; justify-content: center; gap: 7px; color: var(--muted); }
.built-on a { display: inline-flex; align-items: center; gap: 7px; }
.built-on a:hover { text-decoration: none; }
.built-badge {
  display: inline-flex; align-items: center; gap: 9px;
  border: 1px solid var(--border); border-radius: 999px; padding: 8px 16px;
  color: var(--muted); font-size: 0.9rem;
}
.built-badge .dash-logo svg { height: 17px; }
a.built-badge:hover { text-decoration: none; }

/* Dash Evolution logo (self-hosted from dash.org brand assets, CC BY 4.0) */
.evo-logo { display: block; height: 22px; width: auto; }
.built-badge .evo-logo { height: 24px; }

/* ── buttons ──────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border: 1px solid transparent; border-radius: 9px;
  padding: 12px 22px; font-size: 1rem; font-weight: 600;
  cursor: pointer; transition: background 0.2s, transform 0.1s, opacity 0.2s;
  font-family: inherit;
}
.btn:active { transform: translateY(1px); }
.btn.primary { background: var(--blue); color: #fff; }
.btn.primary:hover { background: var(--blue-dark); }
.btn.ghost { background: transparent; border-color: var(--border); color: var(--text); }
.btn.ghost:hover { background: rgba(255, 255, 255, 0.06); }
.btn.sm { padding: 5px 12px; font-size: 0.8rem; font-weight: 500; }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }

.row { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.row.sm-gap { gap: 8px; }

/* ── cards / panels ───────────────────────────────────────────────────────── */
.panel {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 14px; padding: 28px; animation: fade 0.25s ease;
}
@keyframes fade { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

/* ── fields ───────────────────────────────────────────────────────────────── */
.field { margin: 18px 0; }
.field-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.field label { color: var(--blue); font-weight: 600; font-size: 0.9rem; }
.box {
  background: rgba(0, 0, 0, 0.35); border: 1px solid var(--border);
  border-radius: 8px; padding: 14px; word-break: break-all; font-size: 0.9rem;
}
.box.small { font-size: 0.82rem; }
.box.env { white-space: pre-wrap; font-size: 0.8rem; line-height: 1.7; }

.confirm { display: flex; align-items: center; gap: 10px; margin: 16px 0; color: var(--muted); font-size: 0.92rem; cursor: pointer; }
.confirm input { width: 17px; height: 17px; accent-color: var(--blue); }
.fineprint { color: var(--muted); font-size: 0.82rem; margin-top: 12px; }

/* ── notes / errors ───────────────────────────────────────────────────────── */
.note { border-radius: 8px; padding: 13px 15px; margin: 16px 0; font-size: 0.9rem; border: 1px solid; }
.note.warn { background: rgba(255, 193, 7, 0.10); border-color: rgba(255, 193, 7, 0.4); color: #ffe08a; }
.note.ok { background: rgba(40, 167, 69, 0.12); border-color: rgba(40, 167, 69, 0.5); color: #7ee2a0; }
.note.info { background: rgba(0, 141, 228, 0.10); border-color: rgba(0, 141, 228, 0.4); }
.note.info strong { color: var(--blue); }
.error {
  background: rgba(255, 92, 108, 0.12); border: 1px solid var(--danger); color: #ffb3ba;
  border-radius: 8px; padding: 13px 15px; margin-bottom: 16px; font-size: 0.9rem; word-break: break-word;
}

/* ── spinner ──────────────────────────────────────────────────────────────── */
.spinner-row { display: flex; align-items: center; gap: 12px; margin: 8px 0; }
.spinner {
  width: 20px; height: 20px; border: 2px solid rgba(255, 255, 255, 0.2);
  border-top-color: var(--blue); border-radius: 50%; animation: spin 0.9s linear infinite; flex-shrink: 0;
}
@keyframes spin { to { transform: rotate(360deg); } }

h1 { font-size: 1.5rem; margin-bottom: 12px; line-height: 1.25; }
h2 { font-size: 1.25rem; margin-bottom: 12px; }