*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
:root {
  --ink: #14140f;
  --muted: #6b6b60;
  --line: #e4e2d8;
  --bg: #f2f1ea;
  --card: #ffffff;
  --accent: #2f6b3d;
  --danger: #b23b2c;
}
html, body { margin: 0; }
body {
  font-family: "DM Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg); color: var(--ink); line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
button { font: inherit; cursor: pointer; }

/* ---------- login ---------- */
.login-screen { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
#login-form { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 36px; width: min(380px, 92vw); display: grid; gap: 10px; }
#login-form img { height: 40px; width: auto; justify-self: start; }
#login-form p { margin: 6px 0 0; color: var(--muted); font-size: .85rem; }
#login-form h1 { font-family: "Oswald", sans-serif; margin: 0 0 8px; }
#login-form label { font-size: .8rem; font-weight: 600; display: grid; gap: 5px; }
#login-form input { font: inherit; padding: 10px 12px; border: 1px solid var(--line); border-radius: 9px; }
.primary { background: var(--ink); color: #fff; border: 1px solid var(--ink); border-radius: 9px; padding: 10px 16px; font-weight: 600; }
.primary:hover { opacity: .88; }
#login-error { color: var(--danger); font-size: .82rem; }

/* ---------- shell ---------- */
.app { max-width: 1000px; margin: 0 auto; padding: 24px; }
.bill-header { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.bill-header h1 { font-family: "Oswald", sans-serif; font-size: 1.5rem; margin: 0; flex: 1; }
.bill-header .back { text-decoration: none; color: var(--muted); font-weight: 600; font-size: .9rem; }
.head-actions { display: flex; gap: 8px; }
.head-actions button { background: #fff; border: 1px solid var(--line); border-radius: 9px; padding: 8px 14px; }

.bill-tabs { display: flex; align-items: center; gap: 8px; margin: 22px 0 16px; }
.bill-tabs .spacer { flex: 1; }
.bill-tabs [data-tab] { background: transparent; border: 1px solid var(--line); border-radius: 999px; padding: 8px 18px; font-weight: 600; color: var(--muted); }
.bill-tabs [data-tab].active { background: var(--ink); color: #fff; border-color: var(--ink); }
#new-doc { border-radius: 999px; }

.mail-banner { margin: 0 0 14px; padding: 10px 14px; border-radius: 10px; font-size: .84rem; border: 1px solid var(--line); }
.mail-banner.ok { background: #eef8f0; border-color: #bfe4c8; color: #1c6b38; }
.mail-banner.warn { background: #fdf6e3; border-color: #efe0b0; color: #7a5b18; }
.mail-banner code { background: rgba(0,0,0,.06); padding: 1px 5px; border-radius: 4px; font-size: .82em; }

.ed-hint { margin: 6px 0 0; font-size: .78rem; color: var(--muted); }

/* ---------- list ---------- */
.list { display: grid; gap: 12px; }
.empty { background: var(--card); border: 1px dashed var(--line); border-radius: 12px; padding: 40px; text-align: center; color: var(--muted); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 16px 18px; display: flex; gap: 16px; justify-content: space-between; flex-wrap: wrap; }
.card-top { display: flex; align-items: center; gap: 10px; }
.card-top strong { font-size: 1.05rem; }
.card-client { margin: 4px 0 2px; font-weight: 600; }
.card-sub { margin: 0; color: var(--muted); font-size: .85rem; }
.card-flag { margin: 4px 0 0; font-size: .8rem; color: #33559e; }
.card-flag.expired { color: var(--danger); font-weight: 600; }
.card-actions { display: flex; gap: 6px; align-items: flex-start; flex-wrap: wrap; }
.card-actions button { background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 6px 12px; font-size: .82rem; font-weight: 600; }
.card-actions button:hover { border-color: var(--ink); }
.card-actions .danger { color: var(--danger); }

.pill { font-size: .68rem; font-weight: 700; text-transform: uppercase; letter-spacing: .07em; padding: 4px 9px; border-radius: 999px; background: #e7e6dd; color: var(--muted); }
.pill.s-accepted, .pill.s-paid { background: #dff3e2; color: #1c7a3e; }
.pill.s-rejected, .pill.s-cancelled, .pill.s-overdue { background: #fbe1de; color: #b23b2c; }
.pill.s-sent, .pill.s-viewed { background: #e4ecfb; color: #33559e; }

/* ---------- reports ---------- */
.report { display: block; }
.rep-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 4px; }
.rep-toolbar h2 { font-family: "Oswald", sans-serif; margin: 0; font-size: 1.3rem; }
.rep-exports { display: flex; gap: 8px; flex-wrap: wrap; }
.rep-exports button { background: #fff; border: 1px solid var(--line); border-radius: 9px; padding: 8px 14px; font-weight: 600; font-size: .84rem; }
.rep-exports .primary { background: var(--ink); color: #fff; border-color: var(--ink); }
.rep-note { margin: 6px 0 16px; font-size: .8rem; color: var(--muted); }

.rep-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px; margin-bottom: 22px; }
.rep-card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px; display: grid; gap: 3px; }
.rc-label { font-size: .72rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); font-weight: 700; }
.rep-card strong { font-family: "Oswald", sans-serif; font-size: 1.5rem; }
.rc-sub { font-size: .78rem; color: var(--muted); }

.rep-section { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 14px 18px 16px; margin-bottom: 16px; }
.rep-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 8px; }
.rep-head h3 { margin: 0; font-size: .95rem; font-family: "Oswald", sans-serif; }
.rep-head button { background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 5px 11px; font-size: .78rem; font-weight: 600; }
.rep-scroll { overflow-x: auto; }
.rep-table { width: 100%; border-collapse: collapse; font-size: .86rem; }
.rep-table th { text-align: left; font-size: .72rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); padding: 6px 10px; border-bottom: 2px solid var(--ink); }
.rep-table td { padding: 8px 10px; border-bottom: 1px solid var(--line); }
.rep-table .num { text-align: right; white-space: nowrap; }
.rep-table tr:last-child td { border-bottom: none; }
.rep-table .rep-total td { font-weight: 700; border-top: 2px solid var(--ink); }

@media print {
  .bill-header, .bill-tabs, #mail-banner, .no-print, .head-actions { display: none !important; }
  body { background: #fff; }
  .app { max-width: none; padding: 0; }
  .rep-section, .rep-card { break-inside: avoid; box-shadow: none; }
}

/* ---------- editor dialog ---------- */
#editor { border: none; border-radius: 16px; padding: 0; width: min(760px, 94vw); max-height: 92vh; box-shadow: 0 40px 90px -30px rgba(0,0,0,.45); }
#editor::backdrop { background: rgba(20,20,15,.5); }
#editor-form { display: flex; flex-direction: column; max-height: 92vh; }
.ed-head { display: flex; justify-content: space-between; align-items: flex-start; padding: 22px 26px 14px; border-bottom: 1px solid var(--line); }
.ed-head p { margin: 0; color: var(--muted); font-size: .8rem; text-transform: uppercase; letter-spacing: .08em; }
.ed-head h2 { margin: 2px 0 0; font-family: "Oswald", sans-serif; }
.ed-head .x { background: none; border: none; font-size: 1.6rem; line-height: 1; color: var(--muted); }
.ed-body { padding: 18px 26px; overflow-y: auto; }
.ed-body fieldset { border: 1px solid var(--line); border-radius: 12px; margin: 14px 0 0; padding: 12px 16px 16px; }
.ed-body legend { font-size: .75rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); padding: 0 6px; }
.ed-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.ed-grid label, .ed-body > .ed-grid label { font-size: .78rem; font-weight: 600; display: grid; gap: 5px; align-content: start; }
.ed-grid label.wide { grid-column: 1 / -1; }
.ed-grid input, .ed-grid textarea, .ed-grid select { font: inherit; padding: 8px 10px; border: 1px solid var(--line); border-radius: 8px; width: 100%; resize: vertical; }
.ed-grid input[type="color"] { padding: 2px; height: 38px; }
.ed-grid small { font-weight: 400; color: var(--muted); }
.logo-prev { margin-top: 6px; max-height: 46px; max-width: 160px; object-fit: contain; border: 1px solid var(--line); border-radius: 6px; padding: 4px; background: #fff; }

#items { display: grid; gap: 8px; margin-bottom: 10px; }
.li-row { display: grid; grid-template-columns: 1.4fr 1.4fr 70px 90px 90px 30px; gap: 6px; align-items: center; }
.li-row input { font: inherit; padding: 7px 8px; border: 1px solid var(--line); border-radius: 7px; width: 100%; }
.li-amt { font-size: .82rem; font-weight: 600; text-align: right; }
.li-del { background: #fff; border: 1px solid var(--line); border-radius: 7px; color: var(--danger); height: 30px; }
.li-del:disabled { opacity: .3; cursor: not-allowed; }
.ghost { background: #fff; border: 1px dashed var(--line); border-radius: 8px; padding: 8px 14px; font-weight: 600; color: var(--muted); margin-bottom: 12px; }
.ghost.sm { padding: 5px 10px; font-size: .78rem; margin: 0; }

.tax-block { margin: 4px 0 12px; }
.tax-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; }
.tax-head span { font-size: .75rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); }
#taxes { display: grid; gap: 8px; }
.tax-row { display: grid; grid-template-columns: 1fr 84px 100px 90px 30px; gap: 6px; align-items: center; }
.tax-row input, .tax-row select { font: inherit; padding: 7px 8px; border: 1px solid var(--line); border-radius: 7px; width: 100%; }
.tax-amt { font-size: .82rem; font-weight: 600; text-align: right; }
.tax-del { background: #fff; border: 1px solid var(--line); border-radius: 7px; color: var(--danger); height: 30px; }
.tax-empty { margin: 0; font-size: .8rem; color: var(--muted); }

.ed-totals { margin-top: 10px; margin-left: auto; width: min(280px, 100%); display: grid; gap: 4px; }
.ed-totals div { display: flex; justify-content: space-between; font-size: .88rem; }
.ed-totals .grand { border-top: 2px solid var(--ink); margin-top: 4px; padding-top: 8px; font-family: "Oswald", sans-serif; font-size: 1.05rem; }

.ed-link { margin: 16px 0 0; font-size: .8rem; color: var(--muted); word-break: break-all; }
.ed-link span { color: var(--ink); }

.ed-foot { display: flex; justify-content: flex-end; gap: 10px; padding: 14px 26px; border-top: 1px solid var(--line); }
.ed-foot button { border: 1px solid var(--line); background: #fff; border-radius: 9px; padding: 9px 18px; font-weight: 600; }
.ed-foot .primary { background: var(--ink); color: #fff; border-color: var(--ink); }

/* ---------- toast ---------- */
.toast { position: fixed; left: 50%; bottom: 26px; transform: translateX(-50%) translateY(20px); background: var(--ink); color: #fff; padding: 11px 20px; border-radius: 10px; font-size: .88rem; opacity: 0; pointer-events: none; transition: .25s; }
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

@media (max-width: 620px) {
  .ed-grid { grid-template-columns: 1fr; }
  .li-row { grid-template-columns: 1fr 1fr; }
  .li-row .li-amt { text-align: left; }
  .tax-row { grid-template-columns: 1fr 1fr; }
  .tax-row .tax-amt { text-align: left; }
  .card-actions { width: 100%; }
}