:root {
  --bg: #F6F3EE;
  --surface: #FFFDFA;
  --ink: #2E3A3F;
  --muted: #5E6A6F;
  --line: #E4DFD6;
  --sage: #8FA596;
  --sage-deep: #5F7A6B;
  --sage-text: #4F6A5B;
  --sage-soft: #E6EDE7;
  --blue-soft: #E3EAEF;
  --blue-deep: #55707F;
  --clay: #C98B6B;
  --clay-soft: #F4E6DD;
  --clay-deep: #8A5136;
  --radius: 14px;
  --serif: "Fraunces", "Iowan Old Style", Georgia, serif;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.55 var(--sans);
  -webkit-font-smoothing: antialiased;
}

.masthead, main, footer {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Masthead */
.masthead {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  padding-top: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
}
.home-link { flex-basis: 100%; color: var(--muted); font-size: 14px; text-decoration: none; }
.home-link:hover { color: var(--ink); text-decoration: underline; text-underline-offset: 3px; }
.brand { display: flex; align-items: center; gap: 14px; }
.brand h1 {
  margin: 0;
  font: 500 34px/1 var(--serif);
  letter-spacing: -0.01em;
}
.brand p { margin: 4px 0 0; color: var(--muted); font-size: 14px; letter-spacing: 0.02em; }

.tabs { display: flex; gap: 4px; }
.tab {
  font: 500 15px var(--sans);
  color: var(--muted);
  background: none;
  border: 0;
  padding: 8px 14px;
  border-radius: 999px;
  cursor: pointer;
}
.tab:hover { color: var(--ink); }
.tab[aria-current="page"] { background: var(--sage-soft); color: var(--sage-text); }

main { padding-top: 28px; padding-bottom: 40px; min-height: 55vh; }

/* Write next */
.write-next {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 18px;
  margin-bottom: 20px;
}
.write-next-head { display: flex; align-items: baseline; gap: 10px; margin-bottom: 10px; }
.write-next-head h2 { margin: 0; font: 500 20px/1.3 var(--serif); }
.write-next-form { display: flex; gap: 8px; flex-wrap: wrap; }
.write-next-form input { flex: 1 1 180px; padding: 8px 12px; }
.write-next-form input[name="note"] { flex: 2 1 220px; }
.write-next-list { list-style: none; margin: 6px 0 0; padding: 0; }
.write-next-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  border-top: 1px solid var(--line);
}
.write-next-list li:first-child { border-top: 0; }
.write-next-list .who { min-width: 0; }
.write-next-list .who b { font-weight: 500; }
.write-next-list .who .meta { margin: 0; }
.write-next-list .actions { display: flex; gap: 14px; flex: none; }
.write-next-list .suggestion .who b { font-weight: 400; color: var(--muted); }
.link.quiet { color: var(--muted); }

/* Stats */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 24px;
}
.stat {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px 16px;
}
.stat b { display: block; font: 400 28px/1.1 var(--serif); }
.stat span { color: var(--muted); font-size: 14px; }

/* Backup reminder */
.backup-nudge {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  background: var(--clay-soft);
  border-radius: var(--radius);
  padding: 12px 16px;
  margin-bottom: 20px;
  font-size: 14px;
}
.backup-nudge p { margin: 0; flex: 1 1 240px; }

/* Toolbar */
.toolbar { display: flex; gap: 10px; margin-bottom: 20px; flex-wrap: wrap; }
.toolbar input[type="search"] { flex: 1 1 220px; }

input, select, textarea {
  font: inherit;
  color: inherit;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 12px;
  width: 100%;
  min-width: 0;
}
select { width: auto; }
textarea { resize: vertical; }
input::placeholder, textarea::placeholder { color: #869094; }
input:focus-visible, select:focus-visible, textarea:focus-visible, button:focus-visible {
  outline: 2px solid var(--sage);
  outline-offset: 2px;
}

/* Buttons */
.btn {
  font: 500 15px var(--sans);
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink);
  padding: 10px 16px;
  border-radius: 999px;
  cursor: pointer;
  white-space: nowrap;
}
.btn:hover { border-color: var(--sage); }
.btn.primary { background: var(--sage-deep); border-color: var(--sage-deep); color: #fff; }
.btn.primary:hover { background: #52695C; }
.btn.quiet { background: none; }
.btn.danger { background: none; border-color: transparent; color: var(--clay-deep); padding-left: 4px; }
.btn.small { font-size: 14px; padding: 6px 12px; }

/* Mailing list */
.month-heading, .letter-heading {
  font: 500 13px var(--sans);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 26px 0 10px;
}
.month-heading:first-child, .letter-heading:first-child { margin-top: 0; }

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 18px;
  margin-bottom: 10px;
}

.mailing { display: flex; gap: 14px; align-items: flex-start; }
.mailing-icon {
  flex: none;
  width: 40px; height: 40px;
  border-radius: 10px;
  display: grid; place-items: center;
}
.mailing-icon svg { width: 22px; height: 22px; }
.mailing-icon.postcard { background: var(--clay-soft); color: var(--clay-deep); }
.mailing-icon.letter { background: var(--blue-soft); color: var(--blue-deep); }
.mailing-icon.other { background: var(--sage-soft); color: var(--sage-text); }

.mailing-body { flex: 1; min-width: 0; }
.mailing-body h3, .contact h3 { margin: 0; font: 500 19px/1.3 var(--serif); }
.meta { color: var(--muted); font-size: 14px; margin: 2px 0 0; }
.meta.soon { color: var(--clay-deep); font-weight: 500; }
.note { font-size: 14px; margin: 8px 0 0; white-space: pre-wrap; overflow-wrap: anywhere; }

.mailing-side { flex: none; display: flex; flex-direction: column; align-items: flex-end; gap: 8px; }
.pill {
  font-size: 14px;
  font-weight: 500;
  padding: 4px 10px;
  border-radius: 999px;
  white-space: nowrap;
}
.pill.arrived { background: var(--sage-soft); color: var(--sage-text); }
.pill.travelling { background: var(--bg); color: var(--muted); border: 1px dashed var(--line); }

.link {
  font: inherit; font-size: 14px;
  color: var(--sage-text);
  background: none; border: 0; padding: 0;
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* Contacts */
.contact { display: flex; gap: 16px; justify-content: space-between; align-items: flex-start; }
.contact address { font-style: normal; white-space: pre-line; margin-top: 4px; overflow-wrap: anywhere; }
.contact-actions { display: flex; flex-direction: column; gap: 8px; align-items: stretch; flex: none; }

/* Empty states */
.empty { text-align: center; padding: 48px 20px; color: var(--muted); }
.empty img { width: 96px; height: 96px; opacity: .9; }
.empty h3 { font: 400 22px var(--serif); color: var(--ink); margin: 12px 0 4px; }
.empty p { margin: 0 0 18px; }

/* Dialogs */
dialog {
  border: 0;
  border-radius: 18px;
  padding: 0;
  width: min(520px, calc(100vw - 24px));
  background: var(--surface);
  color: var(--ink);
  box-shadow: 0 20px 60px rgba(46, 58, 63, .18);
}
dialog::backdrop { background: rgba(46, 58, 63, .28); }
dialog form, .dialog-body { padding: 24px; display: grid; gap: 14px; }
dialog h2 { margin: 0 0 4px; font: 500 24px var(--serif); }
dialog label { display: block; font-size: 14px; font-weight: 500; }
dialog label.no-label { margin-top: -6px; }
dialog input, dialog textarea, dialog select { display: block; width: 100%; margin-top: 6px; background: #fff; font-weight: 400; }
.optional { font-weight: 400; color: var(--muted); }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

.segmented { border: 0; padding: 0; margin: 0; display: flex; gap: 8px; flex-wrap: wrap; }
.segmented legend { font-size: 14px; font-weight: 500; padding: 0; margin-bottom: 6px; }
.segmented label { display: block; }
.segmented input { position: absolute; opacity: 0; width: 0; }
.segmented span {
  display: block;
  padding: 8px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  cursor: pointer;
  font-weight: 400;
}
.segmented input:checked + span { background: var(--sage-soft); border-color: var(--sage); color: var(--sage-text); font-weight: 500; }
.segmented input:focus-visible + span { outline: 2px solid var(--sage); outline-offset: 2px; }

.dialog-actions { display: flex; gap: 8px; align-items: center; margin-top: 6px; }
.spacer { flex: 1; }

.dialog-body p { margin: 0; }
.choice { display: grid; gap: 6px; justify-items: start; }

/* Calendar */
.year-nav { display: flex; align-items: center; gap: 12px; }
.year-nav h2 { margin: 0; font: 500 28px/1 var(--serif); min-width: 3.2em; text-align: center; }
#calendar-summary { margin: 8px 0 4px; }
.legend { display: flex; align-items: center; flex-wrap: wrap; gap: 6px; margin-bottom: 24px; }
.swatch { display: inline-block; }
.swatch.sent { width: 14px; height: 14px; border-radius: 4px; background: #A9BFB0; }
.swatch.sent, .swatch.today { margin-left: 12px; }
.swatch.today { width: 14px; height: 14px; border-radius: 4px; border: 1.5px solid var(--ink); }
.legend .swatch:first-child { margin-left: 0; }
.swatch.dot { width: 7px; height: 7px; border-radius: 50%; background: var(--clay); margin-left: 12px; }
.calendar { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px 32px; }
.month h3 { margin: 0 0 8px; font: 500 17px var(--serif); }
.days { display: grid; grid-template-columns: repeat(7, 1fr); gap: 3px; text-align: center; font-size: 12px; }
.weekday { color: var(--muted); font-size: 11px; padding-bottom: 2px; }
.day {
  position: relative;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  border-radius: 8px;
  color: var(--muted);
  background: none;
  border: 0;
  padding: 0;
  font: inherit;
}
button.day { cursor: pointer; color: var(--ink); font-weight: 600; }
.day.sent-1 { background: #D5E2D8; }
.day.sent-2 { background: #A9BFB0; }
.day.sent-3 { background: var(--sage-deep); color: #fff; }
.day.birthday::after {
  content: "";
  position: absolute;
  bottom: 1px;
  left: 50%;
  width: 6px; height: 6px;
  margin-left: -3px;
  border-radius: 50%;
  background: var(--clay);
}
.day.sent-1.birthday::after, .day.sent-2.birthday::after { background: var(--clay-deep); }
.day.sent-3.birthday::after { background: var(--clay-soft); }
.birthday-line { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-top: 0; }
.day.today { outline: 1.5px solid var(--ink); outline-offset: -1.5px; }
.day.today.birthday::after { bottom: 3px; }
.day.selected { box-shadow: 0 0 0 3px var(--sage); }
#calendar-day { margin-top: 28px; }

/* Footer */
footer {
  border-top: 1px solid var(--line);
  padding-top: 20px;
  padding-bottom: 40px;
  color: var(--muted);
  font-size: 14px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
footer p { margin: 0; flex: 1 1 260px; }
.footer-actions { display: flex; gap: 8px; }
footer .btn { font-size: 14px; padding: 7px 12px; }

/* Toast */
#toast {
  position: fixed;
  left: 50%; bottom: 24px;
  transform: translate(-50%, 20px);
  background: var(--ink);
  color: #fff;
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 14px;
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s, transform .2s;
}
#toast.show { opacity: 1; transform: translate(-50%, 0); }

[hidden] { display: none !important; }

@media (max-width: 560px) {
  .stats { grid-template-columns: repeat(2, 1fr); }
  .toolbar .btn.primary { flex: 1 1 100%; }
  .mailing { flex-wrap: wrap; }
  .mailing-side { flex: 1 1 100%; flex-direction: row; align-items: center; justify-content: space-between; padding-left: 54px; }
  .contact { flex-direction: column; }
  .contact-actions { flex-direction: row; flex-wrap: wrap; }
  .row { grid-template-columns: 1fr; }
  .calendar { grid-template-columns: repeat(2, 1fr); gap: 22px 20px; }
}