:root {
  color-scheme: dark;
  --color-onyx-canvas: #171721;
  --color-graphite-card: #1e1e2a;
  --color-obsidian-button: #272735;
  --color-slate-border: #70707d;
  --color-mist-border: #e2e3ed;
  --color-ash-text: #c3c3cc;
  --color-ivory-text: #ededf3;
  --color-cobalt: #5266eb;
  --color-cobalt-dim: #44379d;
  --color-pure-white: #ffffff;

  --font-arcadia: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-arcadiadisplay: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;

  --spacing-4: 4px;
  --spacing-8: 8px;
  --spacing-12: 12px;
  --spacing-16: 16px;
  --spacing-20: 20px;
  --spacing-24: 24px;
  --spacing-32: 32px;
  --spacing-40: 40px;
  --spacing-56: 56px;
  --spacing-72: 72px;

  --radius-nav: 40px;
  --radius-cards: 12px;
  --radius-inputs: 32px;
  --radius-buttons: 32px;
  --radius-default: 4px;

  --page-max-width: 1200px;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  background: var(--color-onyx-canvas);
  color: var(--color-ivory-text);
  font-family: var(--font-arcadia);
  font-weight: 400;
  font-size: 16px;
  line-height: 1.5;
}
a { color: inherit; }
button, input, select, textarea { font: inherit; color: inherit; }
::selection { background: var(--color-cobalt); color: var(--color-pure-white); }

h1, h2, h3 {
  font-family: var(--font-arcadiadisplay);
  font-weight: 480;
  letter-spacing: 0.01em;
  margin: 0;
}

/* ---------- Nav ---------- */
nav {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 28px;
  background: color-mix(in srgb, var(--color-onyx-canvas) 78%, transparent);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid color-mix(in srgb, var(--color-mist-border) 12%, transparent);
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 480; letter-spacing: -0.01em; font-size: 1.1rem; color: var(--color-ivory-text); }
.brand img { width: 30px; height: 28px; display: block; }
.links { display: flex; align-items: center; gap: 4px; }
.links a {
  text-decoration: none;
  font-weight: 400;
  font-size: 0.95rem;
  color: var(--color-ivory-text);
  padding: 8px 20px;
  border-radius: var(--radius-nav);
  transition: background-color 0.15s ease;
}
.links a:hover { background: color-mix(in srgb, var(--color-ivory-text) 10%, transparent); }
.links a[aria-current="page"] { background: var(--color-obsidian-button); }
.nav-right { display: flex; align-items: center; gap: 10px; }
.ver {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--color-ash-text);
  border: 1px solid color-mix(in srgb, var(--color-mist-border) 30%, transparent);
  border-radius: 999px;
  padding: 4px 10px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  text-decoration: none;
  font-family: var(--font-arcadia);
  font-weight: 400;
  font-size: 16px;
  border: none;
  border-radius: var(--radius-buttons);
  padding: 12px 24px;
  background: var(--color-cobalt);
  color: var(--color-pure-white);
  cursor: pointer;
  transition: background-color 0.15s ease, transform 0.1s ease;
}
.btn:hover { background: #6276f2; }
.btn:active { transform: translateY(1px); }
.btn.secondary {
  background: transparent;
  color: var(--color-ivory-text);
  border: 1px solid var(--color-ivory-text);
  padding: 11px 20px;
}
.btn.secondary:hover { background: color-mix(in srgb, var(--color-ivory-text) 8%, transparent); }
.btn.secondary:disabled, .btn.secondary:disabled:hover {
  background: #2c2c38;
  color: #9a9aa6;
  border-color: transparent;
}
.btn:disabled {
  background: #2c2c38;
  color: #9a9aa6;
  border-color: transparent;
  opacity: 1;
  cursor: not-allowed;
  pointer-events: none;
}
.btn:disabled:hover { background: #2c2c38; }
.whoami {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  max-width: 220px;
  padding: 4px 12px 4px 4px;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--color-mist-border) 35%, transparent);
  color: var(--color-ivory-text);
  text-decoration: none;
  font-weight: 480;
  line-height: 1;
}
.whoami span:last-child {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.face {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  flex: none;
  overflow: hidden;
  background: var(--color-cobalt);
  color: var(--color-pure-white);
  font-weight: 530;
  font-size: 0.95rem;
  letter-spacing: 0;
}
.face img { width: 100%; height: 100%; object-fit: cover; display: block; }
.warn {
  display: none;
  margin: 0;
  padding: 12px 14px;
  border-radius: 12px;
  background: color-mix(in srgb, #e0b06a 16%, var(--color-graphite-card));
  border: 1px solid color-mix(in srgb, #e0b06a 55%, transparent);
  color: #f3d7a4;
  font-size: 0.92rem;
  line-height: 1.45;
}
.warn.show { display: block; }
.btn:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--color-cobalt);
  outline-offset: 2px;
}

/* ---------- Footer ---------- */
.foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 24px 28px;
  border-top: 1px solid color-mix(in srgb, var(--color-mist-border) 12%, transparent);
  color: var(--color-ash-text);
  font-size: 0.85rem;
  letter-spacing: 0.01em;
}
.foot a { text-decoration: underline; text-underline-offset: 3px; color: var(--color-ash-text); }
.foot a:hover { color: var(--color-ivory-text); }

/* ---------- Cards ---------- */
.card {
  background: var(--color-graphite-card);
  border-radius: var(--radius-cards);
  padding: var(--spacing-32);
}

/* ---------- Editor panes ---------- */
.editor {
  position: relative;
  flex: 1;
  min-height: 240px;
  overflow: hidden;
  background: var(--color-graphite-card);
}
.editor pre, .editor textarea {
  margin: 0;
  padding: 16px;
  width: 100%;
  height: 100%;
  border: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.65;
  white-space: pre;
  tab-size: 2;
}
.editor pre { pointer-events: none; overflow: auto; color: var(--color-ivory-text); }
.editor textarea {
  position: absolute;
  inset: 0;
  resize: none;
  color: transparent;
  caret-color: var(--color-ivory-text);
  background: transparent;
  overflow: auto;
}
.editor textarea::placeholder { color: var(--color-ash-text); }
.tok-kw { color: var(--color-cobalt); font-weight: 480; }
.tok-str { color: #9fd9a8; }
.tok-num { color: #e0b06a; }
.tok-com { color: var(--color-ash-text); font-style: italic; }

/* ---------- Forms ---------- */
.nosel, .nosel label, .nosel legend, .nosel summary, .nosel .hint {
  user-select: none;
  -webkit-user-select: none;
}
input:not([type="checkbox"]):not([type="radio"]),
select {
  width: 100%;
  padding: 10px 16px;
  border: 1px solid color-mix(in srgb, var(--color-mist-border) 35%, transparent);
  border-radius: var(--radius-inputs);
  background: var(--color-obsidian-button);
  color: var(--color-ivory-text);
  min-height: 42px;
}
input::placeholder { color: var(--color-ash-text); }
input:-webkit-autofill,
input:-webkit-autofill:hover,
input:-webkit-autofill:focus {
  -webkit-text-fill-color: var(--color-ivory-text);
  caret-color: var(--color-ivory-text);
  box-shadow: 0 0 0 1000px var(--color-obsidian-button) inset;
}
input[type="checkbox"], input[type="radio"] { margin-top: 4px; accent-color: var(--color-cobalt); }
input:disabled + span { color: var(--color-ash-text); }
label small, .hint { color: var(--color-ash-text); font-size: 0.8rem; }

.help {
  position: relative;
  width: 18px;
  height: 18px;
  margin-top: 1px;
  border: 1px solid color-mix(in srgb, var(--color-mist-border) 35%, transparent);
  border-radius: 999px;
  background: transparent;
  color: var(--color-ash-text);
  font-size: 0.75rem;
  line-height: 1;
  cursor: help;
  flex: none;
}
.help:hover, .help:focus-visible { color: var(--color-ivory-text); border-color: var(--color-ivory-text); }
.help::after {
  content: attr(data-tip);
  position: absolute;
  left: calc(100% + 8px);
  top: 50%;
  transform: translateY(-50%);
  width: max-content;
  max-width: 220px;
  padding: 8px 10px;
  border-radius: 8px;
  background: var(--color-obsidian-button);
  color: var(--color-ivory-text);
  font-family: var(--font-arcadia);
  font-size: 0.78rem;
  font-weight: 400;
  line-height: 1.4;
  white-space: normal;
  text-align: left;
  opacity: 0;
  pointer-events: none;
  z-index: 30;
  box-shadow: 0 12px 28px -16px rgba(0, 0, 0, 0.7);
}
.help:hover::after, .help:focus-visible::after { opacity: 1; }
.field-label { display: flex; align-items: center; gap: 6px; }
.grid fieldset:nth-child(n+3) .help::after {
  left: auto;
  right: calc(100% + 8px);
}

@media (max-width: 860px) {
  nav, .foot { padding-left: 12px; padding-right: 12px; flex-wrap: wrap; row-gap: 8px; }
  .links { order: 3; flex-basis: 100%; overflow-x: auto; gap: 0; }
  .links a { white-space: nowrap; padding: 8px 12px; }
  .nav-right { margin-left: auto; }
  .btn { white-space: nowrap; padding: 8px 14px; font-size: 14px; }
  .editor { min-height: 240px; overflow: hidden; }
  .help::after, .grid fieldset:nth-child(n+3) .help::after {
    left: 0;
    right: auto;
    top: calc(100% + 6px);
    transform: none;
  }
}

/* ---------- Shared additions ---------- */
[hidden] { display: none !important; }
.btn.sm { padding: 7px 16px; font-size: 14px; }
.btn.secondary.sm { padding: 6px 15px; }
.btn.block { width: 100%; }
.links a[aria-current="page"] { color: var(--color-pure-white); }
.foot-links { display: flex; flex-wrap: wrap; gap: 12px 20px; }
.foot a[data-account="link"] {
  max-width: 14rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ---------- Auth pages ---------- */
body.page { height: auto; min-height: 100%; display: flex; flex-direction: column; }
.auth-main { flex: 1; display: flex; justify-content: center; align-items: flex-start; padding: 72px 20px 96px; }
.auth-card { width: 100%; max-width: 420px; padding: 36px; }
.auth-card h1 { font-size: 32px; margin: 0 0 8px; }
.auth-card .lede { color: var(--color-ash-text); margin: 0; }
.auth-card form { display: flex; flex-direction: column; gap: 16px; margin-top: 28px; }
.auth-card label { display: flex; flex-direction: column; gap: 6px; font-weight: 480; font-size: 0.92rem; }
.auth-card label small { font-weight: 400; }
.auth-card input[aria-invalid="true"] { border-color: #e0b06a; }
.auth-card .btn { margin-top: 4px; }
.auth-card .alt { margin: 24px 0 0; text-align: center; color: var(--color-ash-text); font-size: 0.92rem; }
.auth-card .alt a { color: var(--color-ivory-text); text-underline-offset: 3px; }
.auth-card .alt a:hover { color: var(--color-pure-white); }
@media (max-width: 520px) {
  .auth-main { padding-top: 32px; }
  .auth-card { padding: 24px; }
}

/* ---------- Email verification banner ---------- */
.verify-banner {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 8px 16px;
  padding: 10px 16px;
  background: color-mix(in srgb, var(--color-cobalt) 22%, var(--color-onyx-canvas));
  border-bottom: 1px solid color-mix(in srgb, var(--color-cobalt) 45%, transparent);
  color: var(--color-ivory-text);
  font-size: 0.9rem; text-align: center;
}
.verify-banner button {
  font: inherit; font-weight: 480; color: var(--color-ivory-text);
  background: var(--color-obsidian-button);
  border: 1px solid color-mix(in srgb, var(--color-mist-border) 25%, transparent);
  border-radius: var(--radius-buttons); padding: 4px 14px; cursor: pointer;
}
.verify-banner button:disabled { opacity: 0.55; cursor: default; }