/* Layout: a two-column workbench (form | live preview) above one row of setup steps. */
:root {
  --bg: #F5F6E8;        /* warm off-white  [brand] */
  --card: #FCFCF5;      /* white           [brand] */
  --ink: #1F2423;       /* dark base       [brand] */
  --muted: #424B47;     /* gray-green      [brand] */
  --line: #E2E3D7;      /* cool gray       [brand] */
  --accent: #4E6F69;    /* muted green     [brand] */
  --accent-ink: #FCFCF5;
  --warn: #8A4A1D;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --sans: Helvetica, Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #151A19; --card: #1F2423; --ink: #F2F3E7; --muted: #BDB9A1; --line: #333A38; --accent: #8FB0A9; --accent-ink: #151A19; --warn: #F0A06E; color-scheme: dark; }
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body { background: var(--bg); color: var(--ink); font: 15px/1.55 var(--sans); -webkit-font-smoothing: antialiased; }

.page { max-width: 1040px; margin: 0 auto; padding: 48px max(16px, env(safe-area-inset-right, 0px)) 64px max(16px, env(safe-area-inset-left, 0px)); display: grid; gap: 24px; }

.eyebrow { font: 12px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); margin: 0 0 12px; }
h1 { font: 400 clamp(28px, 4vw, 40px)/1.1 var(--serif); margin: 0; text-wrap: balance; }
.lede { color: var(--muted); margin: 10px 0 0; max-width: 60ch; }

.layout { display: grid; grid-template-columns: minmax(0, 340px) minmax(0, 1fr); gap: 24px; align-items: start; }
@media (max-width: 800px) { .layout { grid-template-columns: minmax(0, 1fr); } }

.card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 22px; min-width: 0; }

.form { display: grid; gap: 16px; }
.field { display: grid; gap: 6px; margin: 0; padding: 0; border: 0; min-width: 0; }
label, legend { font: 12px/1.2 var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--muted); padding: 0; }
.opt { text-transform: none; letter-spacing: 0; opacity: .75; }
input:not([type]), input[type="text"], input:not([type="radio"]) {
  width: 100%; padding: 10px 12px; font: 15px var(--sans); color: var(--ink);
  background: var(--bg); border: 1px solid var(--line); border-radius: 6px;
}
.choices { display: flex; gap: 18px; flex-wrap: wrap; margin-top: 2px; }
.choice { font: 15px var(--sans); text-transform: none; letter-spacing: 0; color: var(--ink); display: inline-flex; gap: 8px; align-items: center; cursor: pointer; }
input[type="radio"] { accent-color: var(--accent); margin: 0; }

.label { font: 12px/1.2 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); margin: 0 0 14px; font-weight: 400; }

/* The preview always sits on white, the way it lands in an email. */
.sheet { background: #fff; border-radius: 8px; padding: 26px 24px; overflow-x: auto; box-shadow: inset 0 0 0 1px rgba(31, 36, 35, .08); }

.actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.btn { font: 600 15px var(--sans); padding: 11px 18px; border-radius: 6px; border: 1px solid var(--ink); background: var(--ink); color: var(--card); cursor: pointer; }
.btn-quiet { background: transparent; color: var(--ink); border-color: var(--line); }
.btn:hover { filter: brightness(1.1); }
.status { min-height: 1.5em; margin: 12px 0 0; color: var(--accent); font-weight: 600; }
.warning { margin: 8px 0 0; color: var(--warn); font-size: 14px; }

.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--line); margin-bottom: 16px; flex-wrap: wrap; }
.tabs [role="tab"] { font: 14px var(--sans); background: none; border: 0; border-bottom: 2px solid transparent; padding: 8px 12px; color: var(--muted); cursor: pointer; margin-bottom: -1px; }
.tabs [aria-selected="true"] { color: var(--ink); border-bottom-color: var(--accent); }
.panel ol { margin: 0; padding-left: 20px; display: grid; gap: 8px; max-width: 70ch; }
.open { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 14px; margin: 0 0 18px; }
.btn-link { display: inline-block; text-decoration: none; background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.hint { color: var(--muted); font-size: 14px; }
.hint a, .note a { color: var(--accent); }
.panel ol.steps { gap: 22px; max-width: 600px; }
.steps li::marker { font-weight: 600; }
.steps figure { margin: 10px 0 0; }
.steps img { display: block; width: 100%; max-width: 560px; height: auto; border-radius: 10px; border: 1px solid var(--line); background: #fff; }
.note { color: var(--muted); font-size: 14px; margin: 14px 0 0; }
code { font: 13px var(--mono); }

.foot { color: var(--muted); font-size: 13px; }
.foot a { color: inherit; }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }