/* Simple Serve — Business Book */

* { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --red: #b91c1c;
  --red-dark: #7f1d1d;
  --green: #15803d;
  --amber: #b45309;
  --ink: #1c1917;
  --muted: #78716c;
  --line: #e7e5e4;
  --bg: #faf9f7;
  --card: #ffffff;
  --radius: 14px;
}

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

body {
  font-family: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--ink);
  min-height: 100vh;
  padding-bottom: 76px; /* room for bottom nav */
}

/* ---------- top bar ---------- */

.topbar {
  background: linear-gradient(135deg, var(--red), var(--red-dark));
  color: #fff;
  padding: 14px 16px;
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand { display: flex; align-items: center; gap: 12px; }

.brand-badge {
  background: #fbbf24;
  color: var(--red-dark);
  font-weight: 800;
  font-size: 18px;
  width: 42px; height: 42px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 2px 6px rgba(0,0,0,.25);
  flex-shrink: 0;
}

.brand-name { font-size: 19px; font-weight: 700; letter-spacing: .3px; }
.brand-sub { font-size: 12px; opacity: .85; }

/* ---------- layout ---------- */

main {
  max-width: 640px;
  margin: 0 auto;
  padding: 14px 12px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: 0 1px 3px rgba(0,0,0,.04);
}

.card h3 { font-size: 15px; margin-bottom: 10px; color: var(--ink); }

.card-head-row { display: flex; justify-content: space-between; align-items: center; margin-bottom: 6px; }
.card-head-row h3 { margin-bottom: 0; }

.hint { font-size: 12px; color: var(--muted); margin-bottom: 10px; }

.loading, .empty {
  text-align: center;
  color: var(--muted);
  padding: 28px 10px;
  font-size: 14px;
}

/* ---------- quick actions ---------- */

.quick-actions { display: flex; gap: 10px; }
.quick-actions.secondary { margin-top: -4px; }

.qa {
  flex: 1;
  border: none;
  border-radius: var(--radius);
  padding: 18px 8px 14px;
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  box-shadow: 0 2px 8px rgba(0,0,0,.12);
  transition: transform .08s;
}
.qa:active { transform: scale(.96); }
.qa-ico { font-size: 26px; }

.qa-sale { background: linear-gradient(135deg, #16a34a, #15803d); }
.qa-purchase { background: linear-gradient(135deg, #2563eb, #1e40af); }
.qa-expense { background: linear-gradient(135deg, #ea580c, #c2410c); }

.qa-small {
  flex: 1;
  background: #fff;
  border: 1.5px solid var(--line);
  border-radius: 12px;
  padding: 12px 8px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ink);
  cursor: pointer;
}
.qa-small:active { background: var(--bg); }

/* ---------- stats ---------- */

.stat-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

.stat {
  background: var(--bg);
  border-radius: 10px;
  padding: 10px 6px;
  text-align: center;
}

.stat-label { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: .4px; }
.stat-val { font-size: 15px; font-weight: 700; margin-top: 3px; }
.stat-sub { font-size: 10.5px; color: var(--muted); margin-top: 1px; }

.good { color: var(--green); }
.bad { color: var(--red); }
.muted { color: var(--muted); }

/* ---------- P&L lines ---------- */

.pl-line {
  display: flex;
  justify-content: space-between;
  padding: 7px 0;
  font-size: 14.5px;
  border-bottom: 1px dashed var(--line);
}
.pl-line:last-child { border-bottom: none; }
.pl-muted { font-size: 13px; color: var(--muted); padding: 4px 0; }
.pl-total {
  border-top: 2px solid var(--ink);
  border-bottom: none;
  margin-top: 4px;
  padding-top: 10px;
  font-size: 16px;
  font-weight: 700;
}

/* ---------- entry rows ---------- */

.entries-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.entries-head input[type="month"] {
  border: 1.5px solid var(--line);
  border-radius: 8px;
  padding: 7px 10px;
  font-size: 14px;
  background: #fff;
  font-family: inherit;
}

.entries-total { font-size: 13px; color: var(--muted); }

.seg-row { display: flex; gap: 6px; margin-bottom: 12px; flex-wrap: wrap; }

.seg {
  border: 1.5px solid var(--line);
  background: #fff;
  border-radius: 999px;
  padding: 6px 13px;
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
  cursor: pointer;
}
.seg.active { background: var(--red); border-color: var(--red); color: #fff; }

.rows { display: flex; flex-direction: column; }

.row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
}
.row:last-child { border-bottom: none; }

.row-main { flex: 1; min-width: 0; }
.row-title { font-size: 14.5px; font-weight: 600; }
.row-sub { font-size: 12.5px; color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.row-pending { font-size: 12px; color: var(--amber); font-weight: 600; margin-top: 2px; }
.row-amount { font-size: 14.5px; font-weight: 700; white-space: nowrap; }

.row-del {
  border: none;
  background: none;
  font-size: 16px;
  cursor: pointer;
  opacity: .45;
  padding: 6px;
}
.row-del:active { opacity: 1; }

.row-collect {
  border: none;
  background: var(--green);
  color: #fff;
  border-radius: 8px;
  padding: 7px 12px;
  font-size: 12.5px;
  font-weight: 700;
  cursor: pointer;
}

.row-stmt {
  border: 1.5px solid var(--line);
  background: #fff;
  border-radius: 8px;
  padding: 6px 9px;
  font-size: 14px;
  cursor: pointer;
}

.head-actions { display: flex; gap: 6px; }

/* ---------- item catalog ---------- */

.item-picker {
  display: flex;
  gap: 8px;
  align-items: center;
  background: var(--bg);
  border-radius: 10px;
  padding: 8px;
}
.item-picker select { flex: 1; min-width: 0; }
.item-picker input { width: 74px; flex-shrink: 0; }
.item-picker .btn-small { flex-shrink: 0; padding: 10px 14px; font-size: 15px; }

.qr-preview {
  display: flex;
  justify-content: center;
  align-items: center;
  background: var(--bg);
  border-radius: 10px;
  padding: 12px;
  min-height: 90px;
}
.qr-preview img { max-width: 180px; max-height: 180px; border-radius: 6px; }

.item-group { padding: 8px 0; border-bottom: 1px solid var(--line); }
.item-group:last-child { border-bottom: none; }
.item-group-name { font-size: 13.5px; font-weight: 700; margin-bottom: 6px; }
.item-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.item-chip { font-size: 12.5px; padding: 6px 11px; }

.btn-primary.btn-wa { background: linear-gradient(135deg, #25d366, #128c7e); }

.modal-body textarea {
  border: 1.5px solid var(--line);
  border-radius: 10px;
  padding: 12px;
  font-size: 14px;
  font-family: ui-monospace, Menlo, monospace;
  color: var(--ink);
  background: #fff;
  width: 100%;
  resize: vertical;
}
.modal-body textarea:focus { outline: none; border-color: var(--red); }
.modal-body code { font-size: 12px; background: var(--bg); padding: 2px 5px; border-radius: 4px; }

.btn-small {
  border: 1.5px solid var(--line);
  background: #fff;
  border-radius: 8px;
  padding: 7px 12px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
}
.btn-small:active { background: var(--bg); }

/* ---------- daily sales bars ---------- */

.bar-row { display: flex; align-items: center; gap: 8px; padding: 4px 0; font-size: 12px; }
.bar-label { width: 58px; color: var(--muted); flex-shrink: 0; }
.bar-track { flex: 1; background: var(--bg); border-radius: 4px; height: 14px; overflow: hidden; }
.bar { background: linear-gradient(90deg, #16a34a, #4ade80); height: 100%; border-radius: 4px; min-width: 2px; }
.bar-val { width: 84px; text-align: right; font-weight: 600; flex-shrink: 0; }

/* ---------- bottom nav ---------- */

.bottomnav {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  background: #fff;
  border-top: 1px solid var(--line);
  display: flex;
  z-index: 20;
  padding-bottom: env(safe-area-inset-bottom);
}

.nav-btn {
  flex: 1;
  border: none;
  background: none;
  padding: 9px 4px 8px;
  font-size: 11.5px;
  font-weight: 600;
  color: var(--muted);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  font-family: inherit;
}
.nav-btn.active { color: var(--red); }
.nav-ico { font-size: 20px; }

/* ---------- modal ---------- */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.45);
  z-index: 50;
  display: flex;
  align-items: flex-end;
  justify-content: center;
}

.modal {
  background: #fff;
  border-radius: 18px 18px 0 0;
  width: 100%;
  max-width: 640px;
  max-height: 88vh;
  overflow-y: auto;
  animation: slideup .18s ease-out;
}

@keyframes slideup {
  from { transform: translateY(40px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.modal-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 18px 8px;
}
.modal-head h2 { font-size: 17px; }

.modal-close {
  border: none;
  background: var(--bg);
  border-radius: 50%;
  width: 32px; height: 32px;
  font-size: 20px;
  cursor: pointer;
  color: var(--muted);
  line-height: 1;
}

.modal-body {
  padding: 8px 18px calc(20px + env(safe-area-inset-bottom));
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.modal-body label {
  display: flex;
  flex-direction: column;
  gap: 5px;
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
}

.modal-body input,
.modal-body select {
  border: 1.5px solid var(--line);
  border-radius: 10px;
  padding: 12px;
  font-size: 16px; /* prevents iOS zoom */
  font-family: inherit;
  color: var(--ink);
  background: #fff;
  width: 100%;
}

.modal-body input:focus, .modal-body select:focus {
  outline: none;
  border-color: var(--red);
}

.new-party {
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: var(--bg);
  border-radius: 10px;
  padding: 12px;
}
.hidden { display: none !important; }

.paid-quick { display: flex; gap: 8px; margin-top: -4px; }

.chip {
  border: 1.5px solid var(--line);
  background: #fff;
  border-radius: 999px;
  padding: 7px 14px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  color: var(--ink);
  font-family: inherit;
}
.chip:active { background: var(--bg); }

.btn-primary {
  border: none;
  background: linear-gradient(135deg, var(--red), var(--red-dark));
  color: #fff;
  border-radius: 12px;
  padding: 15px;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  margin-top: 6px;
  font-family: inherit;
}
.btn-primary:disabled { opacity: .6; }

/* ---------- toast ---------- */

#toast {
  position: fixed;
  bottom: 84px;
  left: 50%;
  transform: translateX(-50%) translateY(16px);
  background: var(--ink);
  color: #fff;
  padding: 11px 20px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  opacity: 0;
  pointer-events: none;
  transition: all .2s;
  z-index: 60;
  white-space: nowrap;
}
#toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
#toast.err { background: var(--red); }

/* ---------- auth ---------- */

body.noauth .bottomnav { display: none; }

.auth-card { max-width: 420px; margin: 8vh auto 0; }
.auth-card h2 { font-size: 20px; margin-bottom: 8px; }
.auth-card .hint { margin-bottom: 14px; line-height: 1.5; }

.auth-card form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.auth-card label {
  display: flex;
  flex-direction: column;
  gap: 5px;
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
}

.auth-card input {
  border: 1.5px solid var(--line);
  border-radius: 10px;
  padding: 12px;
  font-size: 16px;
  font-family: inherit;
  color: var(--ink);
  background: #fff;
  width: 100%;
}
.auth-card input:focus { outline: none; border-color: var(--red); }

.account-btn {
  margin-left: auto;
  border: none;
  background: rgba(255,255,255,.15);
  border-radius: 50%;
  width: 38px; height: 38px;
  font-size: 18px;
  cursor: pointer;
  flex-shrink: 0;
}

.account-info {
  background: var(--bg);
  border-radius: 10px;
  padding: 12px;
  font-size: 14px;
}

.btn-logout {
  border: 1.5px solid var(--red);
  background: #fff;
  color: var(--red);
  border-radius: 12px;
  padding: 13px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  font-family: inherit;
}

/* desktop niceties */
@media (min-width: 700px) {
  .modal-overlay { align-items: center; }
  .modal { border-radius: 18px; }
}