:root {
  --paper: #F3EEE3;
  --paper-deep: #EAE1CC;
  --ink: #2A241C;
  --ink-soft: #746A59;
  --wine: #7A2E2E;
  --wine-deep: #5E2222;
  --gold: #A9823C;
  --white: #FFFDF9;
  --border-c: #DCD2BC;
  --ui-font: 'Inter', system-ui, sans-serif;
  --doc-font: 'Noto Serif', Georgia, serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0; padding: 0;
  background: var(--paper); color: var(--ink);
  font-family: var(--ui-font);
}

button { font-family: var(--ui-font); cursor: pointer; }
input, select, textarea { font-family: var(--ui-font); }

.btn {
  border: 1px solid var(--border-c); background: var(--white); color: var(--ink);
  border-radius: 6px; padding: 8px 14px; font-size: 13.5px; font-weight: 500;
  display: inline-flex; align-items: center; gap: 6px; transition: border-color .15s, background .15s;
}
.btn:hover { border-color: var(--gold); background: #FFFBF2; }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn-wine { background: var(--wine); color: var(--white); border-color: var(--wine); }
.btn-wine:hover { background: var(--wine-deep); border-color: var(--wine-deep); }
.btn-ghost { background: transparent; border-color: transparent; }
.btn-ghost:hover { background: var(--paper-deep); border-color: var(--paper-deep); }

.field { display: flex; flex-direction: column; gap: 4px; }
.field label { font-size: 12.5px; color: var(--ink-soft); }
.input {
  border: 1px solid var(--border-c); border-radius: 6px; padding: 7px 10px;
  font-size: 14px; background: var(--white); color: var(--ink); width: 100%;
}
.input:focus { outline: none; border-color: var(--gold); }

.date-input-wrap { position: relative; }
.date-cal-btn {
  position: absolute; right: 6px; top: 50%; transform: translateY(-50%);
  border: none; background: transparent; color: var(--ink-soft); cursor: pointer;
  display: flex; align-items: center; padding: 2px; border-radius: 4px;
}
.date-cal-btn:hover { color: var(--wine); background: var(--paper-deep); }
.cal-popup {
  position: absolute; top: calc(100% + 4px); right: 0; z-index: 50;
  background: var(--white); border: 1px solid var(--border-c); border-radius: 8px;
  padding: 10px; width: 260px; box-shadow: 0 8px 24px rgba(42,36,28,0.18);
}
.cal-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; font-size: 13.5px; font-weight: 600; }
.cal-nav { border: none; background: transparent; cursor: pointer; padding: 4px 10px; border-radius: 4px; color: var(--ink); font-size: 15px; }
.cal-nav:hover { background: var(--paper-deep); }
.cal-weekdays { display: grid; grid-template-columns: repeat(7, 1fr); font-size: 11px; color: var(--ink-soft); text-align: center; margin-bottom: 4px; }
.cal-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 2px; }
.cal-cell { border: none; background: transparent; padding: 6px 0; font-size: 13px; border-radius: 6px; cursor: pointer; color: var(--ink); text-align: center; }
.cal-cell:hover { background: var(--paper-deep); }
.cal-cell.selected { background: var(--wine); color: var(--white); }
.cal-cell.empty { cursor: default; }
.cal-footer { display: flex; justify-content: space-between; margin-top: 8px; padding-top: 8px; border-top: 1px solid var(--border-c); }
.cal-today, .cal-clear { border: none; background: transparent; font-size: 12px; color: var(--ink-soft); cursor: pointer; padding: 4px 6px; border-radius: 4px; }
.cal-today:hover, .cal-clear:hover { background: var(--paper-deep); color: var(--ink); }

.card { background: var(--white); border: 1px solid var(--border-c); border-radius: 10px; }

.header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 24px; border-bottom: 1px solid var(--border-c);
}
.header-left { display: flex; align-items: center; gap: 12px; }
.header-title { font-family: var(--doc-font); font-size: 18px; font-weight: 700; }
.header-sub { font-size: 13px; color: var(--ink-soft); }

.layout { display: flex; gap: 20px; padding: 20px; align-items: flex-start; flex-wrap: wrap; }
.sidebar { width: 300px; flex-shrink: 0; }
.sidebar-search-wrap { padding: 14px; border-bottom: 1px solid var(--border-c); }
.sidebar-list { padding: 8px; max-height: 560px; overflow-y: auto; }
.search-box { position: relative; margin-bottom: 10px; }
.search-box svg { position: absolute; left: 10px; top: 10px; color: var(--ink-soft); }
.search-box input { padding-left: 30px; }

.event-item {
  padding: 12px 14px; border-radius: 8px; cursor: pointer; border-left: 3px solid transparent;
  display: flex; flex-direction: column; gap: 2px; margin-bottom: 4px;
}
.event-item:hover { background: var(--paper-deep); }
.event-item.active { background: #FFFBF2; border-left-color: var(--wine); }
.event-item .name { font-weight: 600; font-size: 14.5px; }
.event-item .meta { font-size: 12.5px; color: var(--ink-soft); }

.empty-state { padding: 48px; text-align: center; color: var(--ink-soft); }
.empty-state-small { padding: 20px; text-align: center; color: var(--ink-soft); font-size: 13.5px; }

.main-content { flex: 1; min-width: 340px; display: flex; flex-direction: column; gap: 16px; }
.card-pad { padding: 18px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.span-2 { grid-column: 1 / -1; }
.row-between { display: flex; justify-content: space-between; align-items: center; margin-top: 14px; gap: 8px; flex-wrap: wrap; }

table.donors-table { width: 100%; border-collapse: collapse; }
table.donors-table td { padding: 8px 10px; border-bottom: 1px solid var(--border-c); font-size: 14px; }

.add-donor-row { display: flex; gap: 8px; margin-top: 14px; flex-wrap: wrap; align-items: flex-end; }

.modal-backdrop {
  position: fixed; inset: 0; background: rgba(42,36,28,0.5); display: flex;
  align-items: flex-start; justify-content: center; padding: 40px 16px; z-index: 30; overflow: auto;
}
.modal { background: var(--paper); border-radius: 10px; max-width: 640px; width: 100%; padding: 24px; border: 1px solid var(--border-c); }
.modal-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; }
.modal-title { font-weight: 700; font-size: 17px; font-family: var(--doc-font); }

.letter-page {
  font-family: var(--doc-font); background: var(--white); border: 1px solid var(--border-c);
  border-radius: 4px; padding: 48px 56px; max-width: 700px; margin: 0 auto;
  line-height: 2.1; font-size: 15px; text-align: justify;
}
.letter-page p { margin: 0 0 20px; }
.letter-table { width: 100%; border-collapse: collapse; margin: 4px 0 18px; }
.letter-table td { padding: 4px 6px; font-size: 14.5px; }
.letter-table td.amt { text-align: right; white-space: nowrap; }
.letterhead { display: flex; gap: 16px; align-items: stretch; border-bottom: 2px solid var(--gold); padding-bottom: 14px; margin-bottom: 26px; }
.letterhead img { height: auto; align-self: stretch; width: auto; max-width: 110px; object-fit: contain; flex-shrink: 0; }
.letterhead .org-name { font-weight: 700; font-size: 17px; letter-spacing: 0.3px; }
.letterhead .org-sub { font-size: 12px; color: var(--ink-soft); margin-top: 3px; }
.letterhead .org-addr { font-size: 11.5px; color: var(--ink-soft); margin-top: 5px; }
.recipient-row { display: flex; justify-content: space-between; margin-bottom: 26px; gap: 24px; font-size: 14.5px; }
.recipient-right { text-align: right; }
.recipient-right .label { font-weight: 600; }
.recipient-right .name { font-weight: 700; margin-top: 2px; }
.recipient-right .sub { font-size: 13.5px; margin-top: 2px; }
.protocol-line { margin-top: 10px; display: flex; align-items: center; gap: 6px; }
.protocol-line input { width: 70px; border: none; border-bottom: 1px solid var(--border-c); background: transparent; font-family: var(--doc-font); font-size: 14.5px; }
.sig-row { display: flex; justify-content: space-between; margin-top: 50px; text-align: center; }
.sig-col { flex: 1; }
.sig-name { margin-top: 34px; }

.print-toolbar { padding: 20px; display: flex; flex-direction: column; align-items: center; gap: 10px; }
.print-toolbar-btns { display: flex; gap: 10px; }
.popup-warning { font-size: 13px; color: var(--wine); max-width: 420px; text-align: center; }

.login-screen {
  min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 20px;
}
.login-card {
  background: var(--white); border: 1px solid var(--border-c); border-radius: 12px;
  padding: 36px 32px; max-width: 380px; width: 100%; text-align: center;
}
.login-card h1 { font-family: var(--doc-font); font-size: 20px; margin: 0 0 6px; }
.login-card p { font-size: 13.5px; color: var(--ink-soft); margin: 0 0 20px; }
.login-card .input { margin-bottom: 12px; text-align: center; }
.login-error { color: var(--wine); font-size: 13px; margin-bottom: 10px; min-height: 18px; }

@media (max-width: 820px) {
  .layout { flex-direction: column; }
  .sidebar { width: 100%; }
  .sidebar-list { max-height: 260px; }
}