:root {
  --ink: #23232e;
  --muted: #8a8a99;
  --line: #e6e6ee;
  --bg: #f7f7fb;
  --accent: #4C78A8;
  --accent-green: #34d399;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
}

/* ---- top bar ---- */
.topbar {
  display: flex; justify-content: space-between; align-items: center;
  gap: 16px; padding: 12px 20px; background: #fff;
  border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 20;
}
.topbar .title { display: flex; align-items: baseline; gap: 10px; }
.topbar h1 { font-size: 17px; margin: 0; }
.tag {
  font-size: 11px; color: var(--muted); border: 1px solid var(--line);
  border-radius: 999px; padding: 2px 8px; text-transform: uppercase; letter-spacing: .04em;
}
.actions { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.viewmodes { display: inline-flex; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.viewmodes button {
  border: 0; background: #fff; padding: 6px 10px; font-size: 12px; cursor: pointer; color: var(--muted);
}
.viewmodes button.on { background: var(--accent); color: #fff; }

.btn {
  display: inline-block; text-decoration: none; cursor: pointer; font-size: 13px;
  padding: 7px 12px; border-radius: 8px; border: 1px solid var(--line);
  background: #fff; color: var(--ink);
}
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.ghost { background: transparent; }
.btn:hover { filter: brightness(0.97); }
.import { margin: 0; }
.import input[type=file] { display: none; }

.flash { margin: 10px 20px; padding: 8px 12px; background: #eef6ff; border: 1px solid #cfe3ff; border-radius: 8px; font-size: 13px; }
.flash.err { background: #fff0f0; border-color: #ffd4d4; }

/* ---- gantt ---- */
.gantt-wrap { margin: 16px 20px; background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 10px; overflow-x: auto; }
#gantt { min-height: 240px; }
.gantt .bar-progress { fill: rgba(0,0,0,0.12) !important; }
.gantt .bar-wrapper.bar-milestone .bar { fill: #6b6b7a !important; }
.gantt .bar-wrapper.bar-sec-0 .bar { fill: #4C78A8 !important; }
.gantt .bar-wrapper.bar-sec-1 .bar { fill: #F58518 !important; }
.gantt .bar-wrapper.bar-sec-2 .bar { fill: #54A24B !important; }
.gantt .bar-wrapper.bar-sec-3 .bar { fill: #B279A2 !important; }
.gantt .bar-wrapper.bar-sec-4 .bar { fill: #E45756 !important; }
.gantt .bar-wrapper.bar-sec-5 .bar { fill: #72B7B2 !important; }
.gantt .bar-wrapper.bar-sec-6 .bar { fill: #EECA3B !important; }
.gantt .bar-wrapper.bar-sec-7 .bar { fill: #9D755D !important; }

/* ---- editor table ---- */
.editor { margin: 0 20px 40px; }
.editor h2 { font-size: 15px; margin: 8px 0 4px; }
.hint { font-size: 12.5px; color: var(--muted); margin: 0 0 10px; }
table.rows { width: 100%; border-collapse: collapse; background: #fff; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
table.rows th { text-align: left; font-size: 11px; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); padding: 8px 10px; background: #fafafe; border-bottom: 1px solid var(--line); }
table.rows td { padding: 5px 10px; border-bottom: 1px solid var(--line); font-size: 13px; vertical-align: middle; }
.section-row td { font-weight: 700; background: #f4f4f8; }
.add-row td { padding: 4px 10px; }
button.add { background: none; border: 1px dashed var(--line); color: var(--muted); border-radius: 8px; padding: 4px 10px; font-size: 12px; cursor: pointer; }
button.del { background: none; border: 0; color: #c0526a; cursor: pointer; font-size: 13px; }
.muted { color: var(--muted); }
.center { text-align: center; }
table.rows input[type=text], table.rows input:not([type]) , .f-name, .f-start, .f-dur {
  width: 100%; border: 1px solid transparent; border-radius: 6px; padding: 5px 6px; font: inherit; background: transparent;
}
.f-name { min-width: 220px; }
.f-dur { max-width: 70px; }
select.f-dep { max-width: 220px; border: 1px solid var(--line); border-radius: 6px; padding: 5px 6px; font: inherit; background: #fff; }
select.f-dep:focus { border-color: var(--accent); outline: none; }
table.rows input:focus { border-color: var(--accent); background: #fff; outline: none; }

/* ---- login ---- */
.login-body { display: grid; place-items: center; min-height: 100vh; }
.login-card { background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 28px; width: 320px; box-shadow: 0 10px 30px rgba(0,0,0,.06); }
.login-card h1 { font-size: 20px; margin: 0 0 4px; }
.login-card .sub { color: var(--muted); font-size: 13px; margin: 0 0 16px; }
.login-card label { display: block; font-size: 12px; color: var(--muted); margin-bottom: 12px; }
.login-card input { width: 100%; margin-top: 4px; padding: 9px 10px; border: 1px solid var(--line); border-radius: 8px; font: inherit; }
.login-card button { width: 100%; margin-top: 6px; padding: 10px; border: 0; border-radius: 8px; background: var(--accent); color: #fff; font-size: 14px; cursor: pointer; }