/* Visual design (Spec §53): white, clean, neutral, calm, uncluttered. */
:root {
  --bg: #ffffff;
  --surface: #f6f7f8;
  --border: #e3e5e8;
  --text: #1f2328;
  --muted: #5f6670;
  --draft: #eceef1;      /* subtle grey */
  --published: #e3f4e6;  /* pale green */
  --warning: #fbf1dc;    /* subtle amber */
  --danger: #a33a3a;     /* restrained red */
  --focus: #4a6fa5;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--text); }
body { font: 16px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; }
a { color: inherit; }
h1 { font-size: 1.5rem; font-weight: 600; margin: 0 0 1rem; }
p.muted, .muted { color: var(--muted); }

/* Forms and buttons: neutral */
label { display: block; font-weight: 500; margin: 1rem 0 .35rem; }
input[type=email], input[type=password], input[type=text] {
  width: 100%; padding: .7rem .8rem; font-size: 1rem;
  border: 1px solid var(--border); border-radius: 8px; background: #fff;
}
input:focus, button:focus, a:focus { outline: 2px solid var(--focus); outline-offset: 2px; }
button, .button {
  display: inline-block; margin-top: 1.25rem; padding: .7rem 1.2rem; font-size: 1rem; font-weight: 500;
  border: 1px solid var(--border); border-radius: 8px; background: var(--surface); color: var(--text);
  cursor: pointer; text-decoration: none;
}
button.primary, .button.primary { background: var(--text); border-color: var(--text); color: #fff; }
.errors { background: var(--warning); border-radius: 8px; padding: .6rem .8rem; margin: 1rem 0 0; }
.errors ul { margin: 0; padding-left: 1.1rem; }
.helptext, .form-help { color: var(--muted); font-size: .9rem; }

/* Single-column pages: login, password, worker */
.narrow { max-width: 420px; margin: 0 auto; padding: 3rem 16px; }
.brand { font-size: .95rem; color: var(--muted); margin-bottom: 2rem; }
.link-row { margin-top: 1.25rem; font-size: .95rem; }

/* Admin layout: left navigation (Spec §13); a top bar on narrow screens */
.admin { display: flex; min-height: 100vh; }
.admin nav { width: 220px; flex-shrink: 0; border-right: 1px solid var(--border); padding: 1.5rem 1rem; display: flex; flex-direction: column; }
.admin nav .brand { margin-bottom: 1.5rem; }
.admin nav a.nav { display: block; padding: .55rem .75rem; border-radius: 8px; text-decoration: none; margin-bottom: .2rem; }
.admin nav a.nav.active { background: var(--surface); font-weight: 600; }
.admin nav form { margin-top: auto; }
.admin main { flex: 1; padding: 2rem; min-width: 0; }
@media (max-width: 760px) {
  .admin { flex-direction: column; }
  .admin nav { width: auto; flex-direction: row; flex-wrap: wrap; align-items: center; gap: .25rem; border-right: 0; border-bottom: 1px solid var(--border); padding: .75rem 16px; }
  .admin nav .brand { width: 100%; margin-bottom: .25rem; }
  .admin nav form { margin: 0 0 0 auto; }
  .admin nav form button { margin-top: 0; }
  .admin main { padding: 1.25rem 16px; }
}

/* Admin pages: headings, tables, actions */
h2 { font-size: 1.1rem; font-weight: 600; margin: 0; }
section { margin-top: 2.25rem; }
.page-head, .section-head { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; margin-bottom: .75rem; }
.page-head h1 { margin: 0; }
.page-head .button, .section-head .button { margin-top: 0; }
.crumb { font-size: .9rem; color: var(--muted); margin: 0 0 .75rem; }
.crumb a { color: var(--muted); }
.actions { display: flex; gap: .5rem; flex-wrap: wrap; margin: .5rem 0 0; }
.actions button { margin-top: 0; }
.table-wrap { overflow-x: auto; }
table.list { width: 100%; border-collapse: collapse; font-size: .95rem; }
table.list th, table.list td { text-align: left; padding: .6rem .75rem; border-bottom: 1px solid var(--border); white-space: nowrap; }
table.list th { font-weight: 500; color: var(--muted); background: var(--surface); }
table.list td a { text-decoration: none; }
table.list td a:hover { text-decoration: underline; }
table.narrow-table { max-width: 480px; }
.row-actions { text-align: right; }
.row-actions a { margin-left: .75rem; text-decoration: underline !important; }
button.danger { border-color: var(--danger); color: var(--danger); background: #fff; }
.form { max-width: 480px; }
.form .button { margin-left: .5rem; }
.message { padding: .6rem .8rem; border-radius: 8px; margin-bottom: 1rem; background: var(--published); }
.message.info { background: var(--surface); }
input[type=date], input[type=number] {
  width: 100%; padding: .7rem .8rem; font-size: 1rem; border: 1px solid var(--border); border-radius: 8px; background: #fff;
}

/* Tablets (A30.3): narrower menu and tighter tables so rate tables fit an upright iPad */
@media (max-width: 1100px) and (min-width: 761px) {
  .admin nav { width: 170px; padding: 1.25rem .75rem; }
  .admin main { padding: 1.5rem 1.25rem; }
}
@media (max-width: 1100px) {
  table.list th, table.list td { padding: .55rem .5rem; }
  table.list th { white-space: normal; }
  .row-actions a { margin-left: .5rem; }
}