/* Taxpayer self-service pages (pay, verify, home). Phone-first: system fonts,
   no framework, large touch targets, 16px inputs so phones don't zoom. */
:root {
  --green: #138a3e;
  --green-dark: #0e6b30;
  --green-soft: #e8f6ed;
  --fill: #138a3e;        /* filled buttons/cards behind white text */
  --fill-hover: #0e6b30;
  --ink: #16211b;
  --muted: #5b6b62;
  --line: #dfe7e2;
  --bg: #f4f7f5;
  --card: #ffffff;
  --red: #b42318;
  --red-soft: #fdecea;
  --amber: #8a5a00;
  --amber-soft: #fff5db;
  --radius: 14px;
  --tap: 52px;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --green: #3fbf6c;
    --green-dark: #5fd486;
    --green-soft: #133523;
    --fill: #1d7a40;
    --fill-hover: #17673a;
    --ink: #e8efe9;
    --muted: #a3b3a9;
    --line: #2b3a31;
    --bg: #0f1612;
    --card: #17211b;
    --red: #ff8a80;
    --red-soft: #3a1714;
    --amber: #ffcf66;
    --amber-soft: #3a2e10;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body.ss {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.5;
}

.ss a { color: var(--green-dark); }

.ss-wrap { max-width: 560px; margin: 0 auto; padding: 0 16px 48px; }

/* Header */
.ss-header {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  max-width: 560px; margin: 0 auto; padding: 12px 16px;
}
.ss-brand { display: flex; align-items: center; gap: 8px; color: var(--ink); text-decoration: none; font-weight: 700; font-size: 18px; }
.ss-brand img { width: 40px; height: 40px; object-fit: contain; }

/* Cards and text */
.ss-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; margin-top: 16px; }
.ss h1 { font-size: 26px; line-height: 1.2; margin: 8px 0 6px; }
.ss h2 { font-size: 19px; margin: 0 0 8px; }
.ss-muted { color: var(--muted); }
.ss-small { font-size: 14px; }

/* Forms */
.ss label { display: block; font-weight: 600; margin-bottom: 6px; }
.ss input[type="text"], .ss input[type="email"], .ss input[type="tel"], .ss input[type="number"], .ss input[type="search"] {
  width: 100%; min-height: var(--tap); padding: 12px 14px; font: inherit; font-size: 18px;
  color: var(--ink); background: var(--card); border: 2px solid var(--line); border-radius: 12px;
}
.ss input:focus { outline: none; border-color: var(--green); box-shadow: 0 0 0 3px var(--green-soft); }
.ss-hint { font-size: 14px; color: var(--muted); margin: 6px 0 0; }
.ss-field + .ss-field { margin-top: 14px; }

/* Buttons */
.ss-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  width: 100%; min-height: var(--tap); padding: 12px 18px; margin-top: 16px;
  border: 0; border-radius: 12px; background: var(--fill); color: #fff;
  font: inherit; font-size: 17px; font-weight: 700; text-align: center; text-decoration: none; cursor: pointer;
}
.ss-btn:hover { background: var(--fill-hover); color: #fff; }
/* Link buttons: beat the general ".ss a" link colour */
.ss a.ss-btn, .ss a.ss-btn:hover { color: #fff; }
.ss a.ss-btn.secondary, .ss .ss-btn.secondary:hover { color: var(--green-dark); }
.ss .ss-btn.secondary:hover { background: var(--green-soft); }
.ss-btn:disabled { opacity: .6; cursor: wait; }
.ss-btn.secondary { background: var(--card); color: var(--green-dark); border: 2px solid var(--green); }
.ss-btn.whatsapp { background: #1f9e4f; }
.ss-btn.small { width: auto; min-height: 44px; margin-top: 0; font-size: 15px; padding: 8px 14px; }
.ss-row { display: flex; gap: 10px; flex-wrap: wrap; }
.ss-row > .ss-btn { flex: 1 1 160px; }

/* Messages */
.ss-alert { border-radius: 12px; padding: 12px 14px; margin-top: 14px; font-size: 15px; }
.ss-alert.error { background: var(--red-soft); color: var(--red); }
.ss-alert.info { background: var(--green-soft); color: var(--green-dark); }
.ss-alert.warn { background: var(--amber-soft); color: var(--amber); }

/* Totals and invoices */
.ss-total { background: var(--fill); color: #fff; border: 0; }
.ss-total .label { opacity: .9; font-size: 15px; }
.ss-total .amount { font-size: 34px; font-weight: 800; line-height: 1.1; margin: 4px 0; word-break: break-word; }
.ss-invoice { border: 1px solid var(--line); border-radius: 12px; padding: 14px; margin-top: 12px; background: var(--card); }
.ss-invoice-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 10px; }
.ss-invoice-amount { font-size: 22px; font-weight: 800; }
.ss-items { list-style: none; padding: 0; margin: 8px 0 0; font-size: 15px; color: var(--muted); }
.ss-items li { display: flex; justify-content: space-between; gap: 10px; padding: 2px 0; }
.ss-badge { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 13px; font-weight: 700; white-space: nowrap; }
.ss-badge.overdue { background: var(--red-soft); color: var(--red); }
.ss-badge.due { background: var(--amber-soft); color: var(--amber); }
.ss-badge.paid { background: var(--green-soft); color: var(--green-dark); }

/* Expandable help sections */
.ss details { border: 1px solid var(--line); border-radius: 12px; background: var(--card); margin-top: 12px; }
.ss summary { min-height: var(--tap); padding: 14px 16px; font-weight: 700; cursor: pointer; list-style: none; display: flex; align-items: center; justify-content: space-between; }
.ss summary::-webkit-details-marker { display: none; }
.ss summary::after { content: "+"; font-size: 22px; color: var(--green); }
.ss details[open] summary::after { content: "−"; }
.ss details > div { padding: 0 16px 16px; }
.ss dl.ss-help dt { font-weight: 700; margin-top: 12px; }
.ss dl.ss-help dd { margin: 2px 0 0; color: var(--muted); }

/* Key/value lists */
.ss-kv { display: grid; grid-template-columns: auto 1fr; gap: 6px 14px; margin: 12px 0 0; }
.ss-kv dt { color: var(--muted); }
.ss-kv dd { margin: 0; font-weight: 600; text-align: right; word-break: break-word; }

/* Results */
.ss-status { text-align: center; }
.ss-status .icon { width: 64px; height: 64px; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; font-size: 34px; font-weight: 800; }
.ss-status .icon.ok { background: var(--green-soft); color: var(--green-dark); }
.ss-status .icon.bad { background: var(--red-soft); color: var(--red); }
.ss-status .icon.warn { background: var(--amber-soft); color: var(--amber); }
.ss-qr { display: flex; justify-content: center; margin: 16px 0 4px; }
.ss-qr img, .ss-qr canvas { background: #fff; padding: 8px; border-radius: 8px; }

/* Bottom sheet for the payment step */
.ss-sheet-backdrop { position: fixed; inset: 0; background: rgba(0, 0, 0, .45); display: none; align-items: flex-end; justify-content: center; z-index: 50; }
.ss-sheet-backdrop.open { display: flex; }
.ss-sheet { background: var(--card); width: 100%; max-width: 560px; border-radius: 18px 18px 0 0; padding: 20px 16px calc(20px + env(safe-area-inset-bottom)); }

.ss-spinner { width: 18px; height: 18px; border: 3px solid rgba(255, 255, 255, .5); border-top-color: #fff; border-radius: 50%; animation: ss-spin .8s linear infinite; }
@keyframes ss-spin { to { transform: rotate(360deg); } }

.ss-footer { text-align: center; font-size: 14px; color: var(--muted); margin-top: 32px; }
.ss-hidden { display: none !important; }

@media (min-width: 640px) {
  .ss h1 { font-size: 32px; }
  .ss-card { padding: 28px; }
  .ss-sheet { border-radius: 18px; margin-bottom: 10vh; }
  .ss-sheet-backdrop { align-items: center; }
}

/* Touch-friendly upgrade for the older long forms (register, TCC, invoice).
   Add class "touch-friendly" to <body>. */
body.touch-friendly input:not([type="checkbox"]):not([type="radio"]):not([type="file"]),
body.touch-friendly select,
body.touch-friendly textarea { min-height: 48px; font-size: 16px; }
body.touch-friendly button, body.touch-friendly .button, body.touch-friendly .btn { min-height: 48px; }
body.touch-friendly input[type="checkbox"], body.touch-friendly input[type="radio"] { width: 22px; height: 22px; }

.autosave-note {
  position: fixed; left: 50%; bottom: 16px; transform: translateX(-50%); z-index: 60;
  display: flex; align-items: center; gap: 12px; max-width: calc(100% - 32px);
  background: #16211b; color: #fff; padding: 10px 14px; border-radius: 12px; font-size: 15px;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}
.autosave-note button { min-height: 40px; background: transparent; color: #7ee2a2; border: 0; font: inherit; font-weight: 700; cursor: pointer; }