/* Excel-inspired green & white theme */
:root {
  --green: #217346;
  --green-dark: #185c37;
  --green-light: #e8f3ec;
  --green-mid: #b7d5c3;
  --line: #d0d7d3;
  --text: #1f2d26;
  --muted: #5f6f66;
  --danger: #b3261e;
  --warn: #8a5a00;
}
* { box-sizing: border-box; }
html { font-size: 15px; }
body {
  margin: 0; min-height: 100vh; display: flex; flex-direction: column;
  font-family: Calibri, "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  color: var(--text); background: #fff; line-height: 1.45;
}
a { color: var(--green-dark); }
h1 { font-size: 1.55rem; margin: 0 0 .4rem; color: var(--green-dark); }
h2 { font-size: 1.15rem; margin: 1.6rem 0 .6rem; color: var(--green-dark); }
.muted { color: var(--muted); }

/* ----- title bar + ribbon ----- */
.titlebar {
  background: var(--green); color: #fff;
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  padding: 0 1rem; position: relative;
}
.brand { display: flex; align-items: center; gap: .6rem; color: #fff; text-decoration: none; padding: .6rem 0; font-weight: 600; }
.logo {
  background: #fff; color: var(--green); font-weight: 800; width: 1.7rem; height: 1.7rem;
  display: inline-flex; align-items: center; justify-content: center; border-radius: 3px;
}
.ribbon { display: flex; align-items: center; gap: .2rem; }
.ribbon a { color: #fff; text-decoration: none; padding: .85rem .8rem; border-bottom: 3px solid transparent; }
.ribbon a:hover { background: var(--green-dark); }
.ribbon a.active { border-bottom-color: #fff; background: var(--green-dark); }
.ribbon .who { font-size: .85rem; opacity: .85; padding: 0 .8rem; }
.nav-toggle { display: none; background: none; border: 1px solid rgba(255,255,255,.6); color: #fff; font-size: 1.3rem; padding: .1rem .6rem; border-radius: 3px; cursor: pointer; }

/* ----- page ----- */
.page { flex: 1; width: 100%; max-width: 1200px; margin: 0 auto; padding: 1.2rem 1rem 2rem; }
.statusbar { background: var(--green-light); border-top: 1px solid var(--green-mid); color: var(--green-dark); font-size: .8rem; display: flex; justify-content: space-between; padding: .3rem 1rem; }

.card { border: 1px solid var(--line); border-radius: 4px; padding: 1rem 1.2rem; margin: 1rem 0; background: #fff; }
.card.narrow { max-width: 420px; margin: 2rem auto; }
.card summary { cursor: pointer; color: var(--green-dark); }

/* ----- forms & buttons ----- */
label { display: block; font-weight: 600; margin: .7rem 0 .25rem; }
label.check { display: flex; gap: .5rem; align-items: center; font-weight: 400; }
input[type=text], input[type=password], input[type=number], select {
  width: 100%; padding: .5rem .6rem; border: 1px solid #9fb3a8; border-radius: 3px; font: inherit; background: #fff;
}
input:focus, select:focus, button:focus-visible, a:focus-visible, td[contenteditable]:focus {
  outline: 2px solid var(--green); outline-offset: 1px;
}
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 1rem; }
.form-grid .full { grid-column: 1 / -1; }
form.filter { display: flex; align-items: center; gap: .6rem; margin: .8rem 0; }
form.filter label { margin: 0; }
form.filter select { width: auto; min-width: 220px; }
form.inline { display: inline; }

.btn {
  display: inline-block; background: var(--green); color: #fff; border: 1px solid var(--green);
  padding: .5rem 1rem; border-radius: 3px; font: inherit; font-weight: 600; text-decoration: none; cursor: pointer; margin-top: .6rem;
}
.btn:hover { background: var(--green-dark); }
.btn-sm { padding: .25rem .65rem; margin-top: 0; font-size: .88rem; }
.btn-ghost { background: #fff; color: var(--green-dark); }
.btn-ghost:hover { background: var(--green-light); }
.btn-danger { background: #fff; color: var(--danger); border-color: var(--danger); }
.btn-danger:hover { background: var(--danger); color: #fff; }

.alert { padding: .6rem .9rem; border-radius: 3px; margin: .6rem 0; border: 1px solid; }
.alert-success { background: var(--green-light); border-color: var(--green-mid); color: var(--green-dark); }
.alert-error { background: #fdecea; border-color: #f0b8b3; color: var(--danger); }
.notice { background: #fff8e1; border: 1px solid #ecd48a; padding: .5rem .8rem; border-radius: 3px; }
.badge { background: #fff3cd; color: var(--warn); border: 1px solid #ecd48a; border-radius: 3px; padding: 0 .35rem; font-size: .75rem; }

.chips { display: flex; flex-wrap: wrap; gap: .5rem; }
.chip { background: var(--green-light); border: 1px solid var(--green-mid); border-radius: 999px; padding: .25rem .8rem; text-decoration: none; }
.chip:hover { background: var(--green-mid); }
.chip b { background: var(--green); color: #fff; border-radius: 999px; padding: 0 .45rem; margin-left: .25rem; font-size: .8rem; }

/* ----- spreadsheet grid ----- */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); margin: .8rem 0; -webkit-overflow-scrolling: touch; }
table.grid { border-collapse: collapse; width: 100%; font-size: .95rem; }
.grid th, .grid td { border: 1px solid var(--line); padding: .35rem .55rem; text-align: left; vertical-align: top; }
.grid thead th { background: var(--green-light); color: var(--green-dark); text-align: center; font-weight: 600; position: sticky; top: 0; }
.grid .corner { width: 2.6rem; }
.grid th.rownum { background: var(--green-light); color: var(--green-dark); text-align: center; width: 2.6rem; font-weight: 600; }
.grid td.hdr { background: #f4faf6; font-weight: 700; color: var(--green-dark); }
.grid td.num { text-align: right; }
.grid td.wrap { min-width: 220px; }
.grid td.nowrap, .nowrap { white-space: nowrap; }
.grid tbody tr:hover td { background: #f7fbf8; }
.grid td[contenteditable="true"] { background: #fffef5; cursor: text; }
table.summary { max-width: 520px; }

.sheet-head { display: flex; flex-wrap: wrap; gap: .8rem; justify-content: space-between; align-items: flex-start; }
.toolbar { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; }
.toolbar .btn { margin-top: 0; }
.toolbar.sticky { position: sticky; top: 0; z-index: 5; background: #fff; padding: .6rem 0; border-bottom: 1px solid var(--line); }
.status { margin-left: .5rem; font-size: .9rem; }
.status.ok { color: var(--green-dark); }
.status.warn { color: var(--warn); }
.status.error { color: var(--danger); }

/* editor cells */
.editor td { padding: 0; }
.editor td input { width: 100%; min-width: 120px; border: 0; border-radius: 0; padding: .4rem .5rem; background: transparent; font: inherit; }
.editor td.hdr input { font-weight: 700; color: var(--green-dark); }
.editor td input:focus { outline: 2px solid var(--green); outline-offset: -2px; background: #fff; }
.editor .row-action { width: 2.4rem; text-align: center; vertical-align: middle; }
.btn-x { background: none; border: 0; color: var(--danger); font-size: 1.2rem; line-height: 1; cursor: pointer; padding: .2rem .4rem; border-radius: 3px; }
.btn-x:hover { background: #fdecea; }

/* sheet tab at the bottom, like Excel */
.tabs { display: flex; border-top: 1px solid var(--green-mid); margin-top: -.8rem; }
.tab { background: #fff; border: 1px solid var(--green-mid); border-top: 0; padding: .25rem 1rem; font-size: .85rem; color: var(--green-dark); }
.tab.active { border-bottom: 3px solid var(--green); font-weight: 600; }

/* ----- responsive ----- */
@media (max-width: 760px) {
  .nav-toggle { display: block; }
  .ribbon { display: none; flex-direction: column; align-items: stretch; width: 100%; gap: 0; }
  .ribbon.open { display: flex; }
  .ribbon a { padding: .7rem .4rem; border-bottom: 1px solid rgba(255,255,255,.2); }
  .ribbon .who { padding: .5rem .4rem; }
  .form-grid { grid-template-columns: 1fr; }
  form.filter { flex-direction: column; align-items: stretch; }
  .brand-text { font-size: .9rem; }
}
@media (min-width: 761px) and (max-width: 1000px) {
  .ribbon a { padding: .85rem .5rem; }
  .ribbon .who { display: none; }
}

@media print {
  .titlebar, .statusbar, .toolbar, .tabs, .notice { display: none !important; }
  .table-wrap { border: 0; overflow: visible; }
}

/* ----- Word-style document pages (trainee view) ----- */
.workspace {
  background: #dfe5e1; border: 1px solid var(--line);
  padding: 1.4rem .6rem; display: flex; flex-direction: column; align-items: center; gap: 1.4rem;
}
.paper {
  background: #fff; width: 8.5in; max-width: 100%; min-height: 11in;
  padding: .7in .75in .5in; box-shadow: 0 1px 3px rgba(0,0,0,.25), 0 4px 14px rgba(0,0,0,.12);
  display: flex; flex-direction: column;
  font-family: Calibri, "Segoe UI", Arial, sans-serif; font-size: 11pt; color: #1b1b1b;
}
.paper-head {
  display: flex; justify-content: space-between; color: #6b7a72; font-size: 9pt;
  border-bottom: 1px solid #cfd8d3; padding-bottom: .3rem; margin-bottom: 1rem;
}
.doc-title { font-size: 20pt; font-weight: 700; color: var(--green-dark); margin: 0 0 .3rem; }
.doc-meta, .doc-desc, .doc-instr { margin: .15rem 0; }
.doc-instr { margin: .6rem 0 1rem; padding: .4rem .6rem; background: var(--green-light); border-left: 3px solid var(--green); font-size: 10pt; }
.doc-scroll { overflow-x: auto; }
.doc-table { width: 100%; border-collapse: collapse; font-size: 10pt; }
.doc-table th, .doc-table td { border: 1px solid #8fa398; padding: .3rem .45rem; text-align: left; vertical-align: top; }
.doc-table th { background: var(--green-light); color: var(--green-dark); font-weight: 700; }
.doc-table td { height: 1.9em; min-width: 80px; word-break: break-word; }
.doc-table td:focus { outline: 2px solid var(--green); outline-offset: -2px; background: #fbfef9; }
.doc-table td.answered { background: #f1f8e9; }
.paper-foot { margin-top: auto; padding-top: 1rem; text-align: center; color: #6b7a72; font-size: 9pt; }

@media (max-width: 900px) {
  .paper { min-height: 0; padding: 1rem .8rem .8rem; }
  .doc-title { font-size: 16pt; }
}

@media print {
  .workspace { background: #fff; border: 0; padding: 0; gap: 0; display: block; }
  .paper { box-shadow: none; width: auto; min-height: 0; padding: 0; page-break-after: always; }
  .doc-table td.answered { background: #fff; }
}