:root {
  --bg: #f4f5f7;
  --surface: #ffffff;
  --text: #1c2230;
  --muted: #5b6475;
  --border: #d9dde4;
  --accent: #14365d;
  --accent-contrast: #ffffff;
  --focus: #2f6fb8;
  --paper-bg: #e6e8ec;
  --radius: 10px;
  --note-bg: #fff8e1;
  --note-border: #f0d98c;
  --edit-hover: #eef4fb;
  --send: #1e7a46;
  --send-hover: #17643a;
  --ok-bg: #e6f4ea;
  --ok-text: #17643a;
  --warn-bg: #fff4e0;
  --warn-text: #8a5a00;
  --err-bg: #fdecea;
  --err-text: #a4271b;
  color-scheme: light;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

.topbar {
  background: var(--accent);
  padding: 10px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px 20px;
  flex-wrap: wrap;
}
.nav-right { display: flex; align-items: center; gap: 12px 24px; flex-wrap: wrap; }
.nav-link { color: var(--accent-contrast); text-decoration: none; font-weight: 600; font-size: .95rem; padding: 6px 2px; border-bottom: 2px solid transparent; }
.nav-link:hover, .nav-link.active { border-bottom-color: var(--accent-contrast); }
.nav-switch { display: flex; align-items: center; gap: 10px; }
.nav-switch label { color: var(--accent-contrast); opacity: .85; font-size: .9rem; white-space: nowrap; }
.nav-switch select {
  width: auto;
  min-width: 220px;
  padding: 6px 10px;
  background: var(--surface);
  border-color: transparent;
}
.partner-other { margin-top: 8px; }
.brand {
  color: var(--accent-contrast);
  text-decoration: none;
  font-weight: 700;
  font-size: 1.1rem;
}
.brand span { font-weight: 400; opacity: .8; margin-left: 6px; }

main { max-width: 1400px; margin: 0 auto; padding: 24px 16px 48px; }

h1 { margin: 0 0 6px; font-size: 1.6rem; }
h2 { margin: 0 0 12px; font-size: 1.1rem; }
.muted { color: var(--muted); margin: 0 0 20px; }

/* Welcome */
.welcome {
  max-width: 620px;
  margin: 40px auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 32px;
}
.lead { color: var(--muted); margin: 0 0 28px; }
.select-label { display: block; font-weight: 600; margin-bottom: 8px; }
.service-select { font-size: 1.05rem; padding: 12px; }
.steps { margin: 28px 0 0; padding-left: 20px; color: var(--muted); }
.steps li { margin: 4px 0; }

/* Builder */
.builder {
  display: grid;
  grid-template-columns: minmax(320px, 420px) 1fr;
  gap: 20px;
  align-items: start;
}
.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  min-width: 0;
}
.form-panel { position: sticky; top: 16px; max-height: calc(100vh - 32px); overflow: auto; }
.back { display: inline-block; margin-bottom: 12px; color: var(--accent); text-decoration: none; font-size: .95rem; }
.back:hover { text-decoration: underline; }

.field { margin-bottom: 16px; }
.field label { display: block; font-weight: 600; font-size: .92rem; margin-bottom: 5px; }
.hint { margin: 4px 0 0; font-size: .82rem; color: var(--muted); }

input, select, textarea {
  width: 100%;
  font: inherit;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 7px;
  padding: 9px 11px;
}
textarea { resize: vertical; }
input:focus, select:focus, textarea:focus, .btn:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 1px;
  border-color: var(--focus);
}
.person { display: grid; grid-template-columns: 84px 1fr; gap: 8px; }
.money { display: flex; align-items: center; gap: 8px; }
.money span { color: var(--muted); font-weight: 600; }

.actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 8px; }
.btn {
  font: inherit;
  font-weight: 600;
  padding: 10px 18px;
  border-radius: 7px;
  border: 1px solid var(--accent);
  background: var(--surface);
  color: var(--accent);
  cursor: pointer;
}
.btn.primary { background: var(--accent); color: var(--accent-contrast); }
.btn.send { background: var(--send); border-color: var(--send); color: #fff; min-width: 110px; }
.btn.send:hover:not(:disabled) { background: var(--send-hover); }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.status { min-height: 1.5em; margin: 10px 0 0; font-size: .9rem; color: var(--muted); }

fieldset { border: 0; margin: 0; padding: 0; min-width: 0; }
fieldset:disabled { opacity: .6; }
.locked-note, .edit-note {
  font-size: .88rem;
  background: var(--note-bg);
  border: 1px solid var(--note-border);
  border-radius: 7px;
  padding: 9px 12px;
  margin: 0 0 16px;
}

/* Preview */
.preview-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 12px; flex-wrap: wrap; }
.preview-head h2 { margin: 0; }
.preview-tools { display: flex; gap: 8px; }
.btn.small { padding: 6px 14px; font-size: .9rem; }
.btn.ghost { border-color: transparent; }
.btn[aria-pressed="true"] { background: var(--accent); color: var(--accent-contrast); }
.preview .editing section.docx p[contenteditable="true"] { cursor: text; border-radius: 2px; }
.preview .editing section.docx p[contenteditable="true"]:hover { background: var(--edit-hover); }
.preview .editing section.docx p[contenteditable="true"]:focus { outline: 2px solid var(--focus); outline-offset: 2px; background: none; }
.preview {
  background: var(--paper-bg);
  border-radius: 8px;
  min-height: 60vh;
  overflow: auto;
}
.preview .empty { padding: 60px 24px; text-align: center; color: var(--muted); }
.preview .docx-wrapper { background: var(--paper-bg) !important; padding: 20px !important; }
.preview .docx-wrapper > section.docx { box-shadow: 0 2px 10px rgba(0, 0, 0, .15); margin-bottom: 20px !important; }

.revise-note {
  font-size: .88rem;
  background: var(--edit-hover);
  border: 1px solid #c9d9ee;
  border-radius: 7px;
  padding: 9px 12px;
  margin: -8px 0 18px;
}

/* Send dialog */
.send-dialog {
  width: min(520px, calc(100vw - 32px));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  color: var(--text);
  background: var(--surface);
}
.send-dialog::backdrop { background: rgba(15, 23, 42, .45); }
.send-dialog h2 { margin-bottom: 16px; }
.send-error { color: var(--err-text); background: var(--err-bg); border-radius: 7px; padding: 8px 12px; font-size: .9rem; }

/* Toast */
.toast {
  position: fixed;
  left: 50%;
  bottom: 24px;
  transform: translateX(-50%);
  max-width: calc(100vw - 32px);
  padding: 12px 20px;
  border-radius: 8px;
  font-weight: 600;
  box-shadow: 0 4px 16px rgba(0, 0, 0, .18);
  z-index: 10;
  background: var(--ok-bg);
  color: var(--ok-text);
}
.toast.warn { background: var(--warn-bg); color: var(--warn-text); }
.toast.error { background: var(--err-bg); color: var(--err-text); }

/* Offers Sent */
.sent-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; }
.table-wrap { overflow-x: auto; }
.sent-table { width: 100%; border-collapse: collapse; font-size: .93rem; }
.sent-table th, .sent-table td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); vertical-align: top; }
.sent-table th { font-size: .8rem; text-transform: uppercase; letter-spacing: .03em; color: var(--muted); white-space: nowrap; }
.sent-table td.actions-cell { white-space: nowrap; text-align: right; }
.sent-table .sub { display: block; color: var(--muted); font-size: .82rem; }
.badge { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: .8rem; font-weight: 600; white-space: nowrap; }
.badge.sent { background: var(--ok-bg); color: var(--ok-text); }
.badge.not_configured { background: var(--warn-bg); color: var(--warn-text); }
.badge.failed { background: var(--err-bg); color: var(--err-text); }
.link-btn { color: var(--accent); font-weight: 600; text-decoration: none; margin-left: 14px; }
.link-btn:hover { text-decoration: underline; }
.empty-state { padding: 40px 0; text-align: center; color: var(--muted); }

@media (max-width: 900px) {
  .nav-right { width: 100%; justify-content: space-between; }
  .topbar { padding: 10px 16px; }
  .nav-switch { width: 100%; }
  .nav-switch select { flex: 1; min-width: 0; }
  .builder { grid-template-columns: 1fr; }
  .form-panel { position: static; max-height: none; }
  .welcome { margin: 16px auto; padding: 24px 20px; }
  /* Scale the A4 page down to fit narrow screens */
  .preview .docx-wrapper { padding: 8px !important; }
  .preview .docx-wrapper > section.docx { zoom: .5; }
}