/* Rental Manager — UI built for clarity and older eyes.
   Big type, strong contrast, status reads by colour AND word. */

:root {
  --bg: #eef1f5;
  --surface: #ffffff;
  --ink: #14213d;
  --ink-soft: #4b5563;
  --line: #d8dee8;
  --primary: #1d4ed8;
  --primary-ink: #ffffff;

  /* Status colours — each paired with a text label in the markup */
  --paid: #15803d;        --paid-bg: #dcfce7;
  --partial: #b45309;     --partial-bg: #fef3c7;
  --duesoon: #f7f715;     --duesoon-bg: #fef3c7;
  --overdue: #b91c1c;     --overdue-bg: #fee2e2;
  --pending: #1d4ed8;     --pending-bg: #dbeafe;
  --vacant: #4b5563;      --vacant-bg: #e5e7eb;
  --maint: #6b21a8;       --maint-bg: #f3e8ff;

  --radius: 14px;
  --shadow: 0 1px 3px rgba(20, 33, 61, .08), 0 4px 14px rgba(20, 33, 61, .06);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 18px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  padding-bottom: 84px; /* room for bottom nav */
}

a { color: var(--primary); text-decoration: none; }

/* ---- Top bar ---- */
.topbar {
  position: sticky; top: 0; z-index: 20;
  background: var(--ink); color: #fff;
  padding: 14px 18px;
  display: flex; align-items: center; justify-content: space-between;
}
.topbar .brand { font-size: 20px; font-weight: 700; letter-spacing: .2px; }
.topbar .brand small { display: block; font-size: 12px; font-weight: 500;
  color: #9fb0d8; letter-spacing: .5px; text-transform: uppercase; }
.topbar a.logout { color: #cdd8f0; font-size: 15px; }

/* ---- Layout ---- */
.wrap { max-width: 1100px; margin: 0 auto; padding: 18px 16px 30px; }
.section-title { font-size: 15px; font-weight: 700; text-transform: uppercase;
  letter-spacing: .8px; color: var(--ink-soft); margin: 26px 4px 12px; }

/* ---- Summary cards ---- */
.cards { display: grid; gap: 12px;
  grid-template-columns: repeat(2, 1fr); }
@media (min-width: 720px) { .cards { grid-template-columns: repeat(3, 1fr); } }
.card {
  background: var(--surface); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 16px 18px;
}
.card .num { font-size: 34px; font-weight: 800; line-height: 1.1; }
.card .lbl { font-size: 15px; color: var(--ink-soft); margin-top: 2px; }
.card.alert .num { color: var(--overdue); }
.card.go .num { color: var(--paid); }
.card.money .num { font-size: 26px; }

/* ---- Building block ---- */
.building {
  background: var(--surface); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 14px 16px 18px; margin-bottom: 16px;
}
.building h2 { font-size: 21px; margin: 2px 0 2px; }
.building .meta { font-size: 14px; color: var(--ink-soft); margin-bottom: 12px; }

/* ---- The unit board (the signature element) ---- */
.board { display: grid; gap: 10px;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); }
.tile {
  display: block; border-radius: 12px; padding: 12px 12px 14px;
  border: 2px solid transparent; color: var(--ink);
  background: var(--surface); box-shadow: var(--shadow);
  transition: transform .08s ease;
}
.tile:active { transform: scale(.98); }
.tile .name { font-size: 19px; font-weight: 800; }
.tile .type { font-size: 13px; color: var(--ink-soft); margin-bottom: 8px; }
.tile .badge {
  display: inline-block; font-size: 13px; font-weight: 800;
  text-transform: uppercase; letter-spacing: .4px;
  padding: 4px 9px; border-radius: 999px;
}
.tile .who { font-size: 13px; color: var(--ink-soft); margin-top: 8px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* status variants */
.s-paid    { border-color: var(--paid); }
.s-paid    .badge { background: var(--paid-bg); color: var(--paid); }
.s-partial { border-color: var(--partial); }
.s-partial .badge { background: var(--partial-bg); color: var(--partial); }
.s-duesoon { border-color: var(--duesoon); }
.s-duesoon .badge { background: var(--duesoon-bg); color: var(--duesoon); }
.s-overdue { border-color: var(--overdue); background: var(--overdue-bg); }
.s-overdue .badge { background: var(--overdue); color: #fff; }
.s-pending { border-color: var(--pending); }
.s-pending .badge { background: var(--pending-bg); color: var(--pending); }
.s-vacant  { border-color: var(--vacant); background: var(--vacant-bg); }
.s-vacant  .badge { background: var(--vacant); color: #fff; }
.s-maint   { border-color: var(--maint); }
.s-maint   .badge { background: var(--maint-bg); color: var(--maint); }

/* legend */
.legend { display: flex; flex-wrap: wrap; gap: 8px 14px; margin: 10px 4px 0;
  font-size: 14px; color: var(--ink-soft); }
.legend span { display: inline-flex; align-items: center; gap: 6px; }
.dot { width: 14px; height: 14px; border-radius: 4px; display: inline-block; }

/* ---- Bottom nav ---- */
.bottomnav {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 30;
  background: var(--surface); border-top: 1px solid var(--line);
  display: flex; justify-content: space-around; padding: 8px 0 10px;
}
.bottomnav a {
  flex: 1; text-align: center; color: var(--ink-soft);
  font-size: 13px; font-weight: 600; padding: 4px 0;
}
.bottomnav a .ico { display: block; font-size: 22px; line-height: 1.1; }
.bottomnav a.active { color: var(--primary); }

/* ---- Buttons ---- */
.btn {
  display: inline-block; background: var(--primary); color: var(--primary-ink);
  font-size: 18px; font-weight: 700; padding: 14px 22px; border-radius: 12px;
  border: none; cursor: pointer; text-align: center;
}
.btn.block { display: block; width: 100%; }
.btn.ghost { background: transparent; color: var(--primary);
  border: 2px solid var(--primary); }

/* ---- Detail page ---- */
.detail-row { display: flex; justify-content: space-between;
  padding: 12px 0; border-bottom: 1px solid var(--line); font-size: 17px; }
.detail-row .k { color: var(--ink-soft); }
.detail-row .v { font-weight: 700; }

/* ---- Login ---- */
.login-shell { min-height: 100vh; display: flex; align-items: center;
  justify-content: center; padding: 24px; }
.login-card { background: var(--surface); border-radius: 18px;
  box-shadow: var(--shadow); padding: 30px 26px; width: 100%; max-width: 380px; }
.login-card h1 { font-size: 26px; margin: 0 0 4px; }
.login-card p.sub { color: var(--ink-soft); margin: 0 0 22px; font-size: 15px; }
.field { margin-bottom: 16px; }
.field label { display: block; font-weight: 700; margin-bottom: 6px; }
.field input { width: 100%; font-size: 18px; padding: 13px 14px;
  border: 2px solid var(--line); border-radius: 12px; }
.field input:focus { outline: none; border-color: var(--primary); }
.error { background: var(--overdue-bg); color: var(--overdue);
  padding: 12px 14px; border-radius: 10px; font-size: 15px; margin-bottom: 16px; }

.empty { text-align: center; color: var(--ink-soft); padding: 40px 20px; }
.empty h3 { color: var(--ink); }

*:focus-visible { outline: 3px solid var(--primary); outline-offset: 2px; }
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }

/* ---- Section 3: forms, messages, lists, gallery ---- */
.messages { margin: 0 0 14px; padding: 0; list-style: none; }
.messages li { padding: 12px 14px; border-radius: 10px; font-size: 16px;
  margin-bottom: 8px; }
.messages li.success { background: var(--paid-bg); color: var(--paid); }
.messages li.error { background: var(--overdue-bg); color: var(--overdue); }

.form-card { background: var(--surface); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 20px 18px; margin-bottom: 16px; }
.form-card h2 { font-size: 19px; margin: 0 0 14px; }
.form-card label { display: block; font-weight: 700; margin: 0 0 6px; font-size: 16px; }
.form-card input[type=text], .form-card input[type=email],
.form-card input[type=number], .form-card input[type=date],
.form-card input[type=file], .form-card select, .form-card textarea {
  width: 100%; font-size: 18px; padding: 12px 13px; margin-bottom: 14px;
  border: 2px solid var(--line); border-radius: 11px; background: #fff;
}
.form-card input:focus, .form-card select:focus, .form-card textarea:focus {
  outline: none; border-color: var(--primary);
}
.form-card .helptext { font-size: 13px; color: var(--ink-soft);
  margin: -10px 0 14px; display: block; }
.form-card ul.errorlist { list-style: none; margin: 0 0 10px; padding: 0;
  color: var(--overdue); font-size: 14px; }

.tlist .row { display: flex; align-items: center; justify-content: space-between;
  gap: 12px; }
.tlist .who { font-size: 18px; font-weight: 700; }
.tlist .sub { font-size: 14px; color: var(--ink-soft); }
.searchbar { display: flex; gap: 8px; margin-bottom: 14px; }
.searchbar input { flex: 1; font-size: 17px; padding: 12px 14px;
  border: 2px solid var(--line); border-radius: 11px; }

.gallery { display: grid; gap: 10px;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); margin-top: 10px; }
.gallery figure { margin: 0; background: var(--surface); border-radius: 12px;
  overflow: hidden; box-shadow: var(--shadow); }
.gallery img, .gallery video { width: 100%; height: 130px; object-fit: cover;
  display: block; background: #000; }
.gallery figcaption { font-size: 13px; color: var(--ink-soft); padding: 8px 10px; }

.actions { display: grid; gap: 10px; margin-top: 16px; }
@media (min-width: 560px) { .actions { grid-template-columns: 1fr 1fr; } }
.btn.danger { background: var(--overdue); }