/* ── fjson-fmt playground · claymorphism ───────────────────────────── */

:root {
  --radius: 26px;
  --radius-sm: 16px;
  --speed: .25s;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", "Fira Code", Menlo, Consolas, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

/* Light theme — soft warm clay */
[data-theme="light"] {
  --bg: #e8ecf5;
  --bg-2: #eef1f8;
  --surface: #eaeef7;
  --text: #3a4a63;
  --text-soft: #6b7a93;
  --accent: #7c6cff;
  --accent-2: #ff8fb1;
  --accent-3: #54d6c4;
  --shadow-dark: #c4cbdc;
  --shadow-light: #ffffff;
  --inset-dark: #c8cfdf;
  --inset-light: #ffffff;
  --orb-1: #b9acff;
  --orb-2: #ffc2d6;
  --orb-3: #9ff0e3;
}

/* Dark theme — deep clay */
[data-theme="dark"] {
  --bg: #232838;
  --bg-2: #1d2230;
  --surface: #272d40;
  --text: #e6ebf7;
  --text-soft: #9aa6c2;
  --accent: #9f93ff;
  --accent-2: #ff9dbd;
  --accent-3: #5fe0cf;
  --shadow-dark: #161a26;
  --shadow-light: #323a52;
  --inset-dark: #181d29;
  --inset-light: #313952;
  --orb-1: #5b4fb8;
  --orb-2: #7d3f5c;
  --orb-3: #2f7d72;
}

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  font-family: var(--sans);
  color: var(--text);
  background: radial-gradient(120% 120% at 0% 0%, var(--bg-2), var(--bg) 60%);
  min-height: 100vh;
  overflow-x: hidden;
  transition: background var(--speed), color var(--speed);
}

/* floating background blobs */
.bg-orbs { position: fixed; inset: 0; z-index: -1; filter: blur(90px); opacity: .1; }
.orb { position: absolute; border-radius: 50%; }
.orb-1 { width: 42vmax; height: 42vmax; background: var(--orb-1); top: -12vmax; left: -10vmax; }
.orb-2 { width: 34vmax; height: 34vmax; background: var(--orb-2); bottom: -14vmax; right: -8vmax; }
.orb-3 { width: 26vmax; height: 26vmax; background: var(--orb-3); top: 40%; left: 55%; }

/* ── clay primitives ─────────────────────────────────────────────── */
.clay,
.panel,
.clay-btn,
.chip,
.clay-field {
  background: var(--surface);
  border: none;
  box-shadow:
    4px 4px 10px var(--shadow-dark),
    -4px -4px 10px var(--shadow-light);
}

.clay-inset {
  background: var(--surface);
  border-radius: var(--radius-sm);
  box-shadow:
    inset 3px 3px 7px var(--inset-dark),
    inset -3px -3px 7px var(--inset-light);
}

/* ── layout ──────────────────────────────────────────────────────── */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; flex-wrap: wrap;
  max-width: 1100px; margin: 0 auto; padding: 1.6rem 1.4rem .4rem;
}
.brand { display: flex; align-items: center; gap: 1rem; }
.logo {
  display: grid; place-items: center;
  width: 56px; height: 56px; border-radius: 18px;
  font: 700 1.3rem/1 var(--mono); color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 3px 3px 7px var(--shadow-dark), -3px -3px 7px var(--shadow-light);
}
h1 { margin: 0; font-size: 1.5rem; letter-spacing: -.02em; }
.tagline { margin: .15rem 0 0; color: var(--text-soft); font-size: .9rem; }
.tagline em { font-style: normal; opacity: .7; }
.actions { display: flex; align-items: center; gap: .6rem; }

.grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 1.4rem;
  max-width: 1100px; margin: 1rem auto; padding: 0 1.4rem;
}
@media (max-width: 820px) { .grid { grid-template-columns: 1fr; } }

.panel { border-radius: var(--radius); padding: 1.2rem; min-width: 0; }
.controls { max-width: 1100px; margin: 0 auto 1.4rem; }
.panel-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: .9rem; }
.panel-head h2 { margin: 0; font-size: 1.05rem; }
.panel-head-actions { display: flex; gap: .5rem; }

.editor-wrap { padding: 4px; }
textarea, pre#output {
  width: 100%; min-height: 320px; margin: 0;
  font: 13.5px/1.55 var(--mono);
  color: var(--text); background: transparent; border: none; outline: none; resize: vertical;
  padding: 1rem; white-space: pre; overflow: auto;
}
pre#output { min-height: 320px; }

/* ── buttons ─────────────────────────────────────────────────────── */
.clay-btn, .chip {
  cursor: pointer; color: var(--text); font-family: var(--sans);
  border-radius: 14px; padding: .55rem .9rem; font-weight: 600; font-size: .85rem;
  text-decoration: none; transition: transform var(--speed), box-shadow var(--speed), color var(--speed);
}
.chip { padding: .4rem .75rem; font-size: .8rem; border-radius: 12px; }
.clay-btn:hover, .chip:hover { transform: translateY(-1px); }
.clay-btn:active, .chip:active {
  transform: translateY(0);
  box-shadow: inset 2px 2px 6px var(--inset-dark), inset -2px -2px 6px var(--inset-light);
}
.clay-btn.ghost { color: var(--text-soft); }
.clay-btn.icon { width: 46px; height: 46px; padding: 0; display: grid; place-items: center; font-size: 1.2rem; }
.clay-btn.icon .moon { display: none; }
[data-theme="dark"] .clay-btn.icon .sun { display: none; }
[data-theme="dark"] .clay-btn.icon .moon { display: inline; }

/* ── options ─────────────────────────────────────────────────────── */
.opts {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 1rem 1.4rem;
}
.opt { display: flex; flex-direction: column; gap: .45rem; font-size: .85rem; color: var(--text-soft); font-weight: 600; }
.clay-field {
  border-radius: 12px; padding: .6rem .8rem; color: var(--text);
  font-family: var(--sans); font-size: .9rem;
  box-shadow: inset 2px 2px 6px var(--inset-dark), inset -2px -2px 6px var(--inset-light);
  background: var(--surface);
}
.clay-field:focus { outline: 2px solid var(--accent); outline-offset: 1px; }

/* toggle switch */
.opt.switch { flex-direction: row; align-items: center; gap: .65rem; cursor: pointer; }
.opt.switch input { position: absolute; opacity: 0; pointer-events: none; }
.track {
  position: relative; width: 46px; height: 26px; border-radius: 999px; flex: none;
  background: var(--surface);
  box-shadow: inset 2px 2px 4px var(--inset-dark), inset -2px -2px 4px var(--inset-light);
  transition: background var(--speed);
}
.thumb {
  position: absolute; top: 3px; left: 3px; width: 20px; height: 20px; border-radius: 50%;
  background: var(--surface);
  box-shadow: 1px 1px 3px var(--shadow-dark);
  transition: transform var(--speed), background var(--speed);
}
.switch input:checked + .track { background: linear-gradient(135deg, var(--accent), var(--accent-2)); }
.switch input:checked + .track .thumb { transform: translateX(20px); background: #fff; }
.switch input:focus-visible + .track { outline: 2px solid var(--accent); outline-offset: 2px; }

/* ── usage / docs cards ──────────────────────────────────────────── */
.usage {
  display: grid; grid-template-columns: 1fr 1fr; gap: 1.4rem;
  max-width: 1100px; margin: 0 auto 1.4rem; padding: 0 1.4rem;
}
@media (max-width: 820px) { .usage { grid-template-columns: 1fr; } }
.card { border-radius: var(--radius); padding: 1.4rem; min-width: 0; }
.card h2 { margin: 0 0 .4rem; font-size: 1.05rem; }
.card .muted { color: var(--text-soft); font-size: .85rem; margin: .9rem 0 .5rem; }
.card .muted:first-of-type { margin-top: .2rem; }
.code {
  margin: 0; padding: .9rem 1rem; border-radius: var(--radius-sm);
  font: 12.5px/1.6 var(--mono); color: var(--text);
  white-space: pre; overflow-x: auto;
  box-shadow: inset 2px 2px 6px var(--inset-dark), inset -2px -2px 6px var(--inset-light);
}
.card code { font-family: var(--mono); }

/* ── status + footer ─────────────────────────────────────────────── */
.status { margin: .7rem .2rem 0; min-height: 1.2em; font-size: .82rem; color: var(--text-soft); }
.status.error { color: var(--accent-2); }
.status.ok { color: var(--accent-3); }
.foot { max-width: 1100px; margin: 0 auto; padding: 0 1.4rem 2.4rem; color: var(--text-soft); font-size: .82rem; text-align: center; }
.foot a { color: var(--accent); text-decoration: none; }
.foot code { font-family: var(--mono); }