:root {
  --bg: #f5f7fb; --card: #ffffff; --text: #16213a; --muted: #5b6577; --line: #dde3ee;
  --accent: #1d4ed8; --accent-ink: #ffffff; --ok-bg: #e5f7ec; --ok-ink: #14532d; --err-bg: #fdecec; --err-ink: #7f1d1d;
  --danger: #b91c1c; --head-bg: #eef2f9;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0f1420; --card: #171e2e; --text: #e8edf6; --muted: #98a3b8; --line: #2a3446; --accent: #6b9cff; --accent-ink: #0b1220; --ok-bg: #123524; --ok-ink: #a7f3c4; --err-bg: #3b1212; --err-ink: #fecaca; --danger: #f87171; --head-bg: #1d2638; }
}
* { box-sizing: border-box; }
html { font: 15px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; color: var(--text); background: var(--bg); }
body { margin: 0; min-height: 100vh; display: flex; flex-direction: column; }
a { color: var(--accent); }
main { flex: 1; width: 100%; max-width: 1280px; margin: 0 auto; padding: 20px 16px 40px; }
footer { color: var(--muted); font-size: 12px; text-align: center; padding: 16px; border-top: 1px solid var(--line); }
h1 { font-size: 26px; margin: 0; } h2 { font-size: 17px; margin: 0 0 12px; } h3 { font-size: 13px; margin: 0 0 6px; letter-spacing: .04em; text-transform: uppercase; color: var(--muted); }
h4 { font-size: 12px; margin: 0 0 4px; color: var(--muted); font-weight: 600; }
.muted { color: var(--muted); } .small { font-size: 13px; } .nowrap { white-space: nowrap; } .num { text-align: right; font-variant-numeric: tabular-nums; }
.topbar { display: flex; align-items: center; gap: 24px; padding: 10px 16px; background: var(--card); border-bottom: 1px solid var(--line); flex-wrap: wrap; row-gap: 6px; }
.brand { font-weight: 700; text-decoration: none; color: var(--text); font-size: 17px; } .brand-mark { color: var(--accent); }
.topbar nav { display: flex; gap: 4px; flex: 1; min-width: 0; overflow-x: auto; -webkit-overflow-scrolling: touch; scrollbar-width: none; }
.topbar nav::-webkit-scrollbar { display: none; }
.topbar nav a { text-decoration: none; color: var(--muted); padding: 6px 10px; border-radius: 8px; font-weight: 500; white-space: nowrap; }
.topbar nav a.active, .topbar nav a:hover { color: var(--text); background: var(--head-bg); }
.user { display: flex; align-items: center; gap: 10px; font-size: 14px; margin-left: auto; min-width: 0; } .avatar { width: 28px; height: 28px; border-radius: 50%; flex-shrink: 0; }
.user-name { max-width: 160px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
@media (max-width: 640px) {
  .topbar { gap: 12px; padding: 8px 12px; }
  .topbar nav { order: 3; flex-basis: 100%; }
  .topbar nav a { padding: 6px 8px; font-size: 14px; }
  .user-name { display: none; }
  main { padding: 14px 12px 32px; }
  h1 { font-size: 22px; }
  .hero { margin: 32px auto; } .hero h1 { font-size: 28px; }
}
html, body { max-width: 100%; overflow-x: hidden; }
.linkish { background: none; border: 0; color: var(--accent); cursor: pointer; font: inherit; padding: 0; }
.page-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 16px; flex-wrap: wrap; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 16px; margin-bottom: 16px; }
.card-head { display: flex; justify-content: space-between; align-items: baseline; }
.empty { text-align: center; padding: 40px 16px; }
.hero { max-width: 560px; margin: 60px auto; text-align: center; } .hero h1 { font-size: 34px; margin-bottom: 12px; } .hero p { color: var(--muted); font-size: 17px; }
.btn { display: inline-block; padding: 8px 14px; border-radius: 8px; border: 1px solid var(--line); background: var(--card); color: var(--text); text-decoration: none; font: inherit; font-weight: 500; cursor: pointer; }
.btn:hover { border-color: var(--accent); } .btn-primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); } .btn-lg { padding: 12px 22px; font-size: 17px; }
.btn-danger { color: var(--danger); } .btn[disabled] { opacity: .6; cursor: wait; }
.flash { padding: 10px 14px; border-radius: 8px; margin-bottom: 16px; } .flash-ok { background: var(--ok-bg); color: var(--ok-ink); } .flash-err { background: var(--err-bg); color: var(--err-ink); }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 12px; margin-bottom: 16px; }
.stat { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 14px; }
.stat-value { font-size: 26px; font-weight: 700; font-variant-numeric: tabular-nums; } .stat-label { color: var(--muted); font-size: 13px; } .stat-hint { color: var(--muted); font-size: 12px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; } .grid-2 > * { min-width: 0; } @media (max-width: 800px) { .grid-2 { grid-template-columns: 1fr; } }
.table-wrap { overflow-x: auto; }
.table { width: 100%; border-collapse: collapse; font-size: 14px; }
.table th, .table td { padding: 8px 8px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.table th { background: var(--head-bg); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .03em; color: var(--muted); white-space: nowrap; }
.table.compact th, .table.compact td { padding: 6px 8px; }
.table .total { font-weight: 600; } .table .remarks { max-width: 320px; }
.badge { display: inline-block; font-size: 11px; padding: 2px 8px; border-radius: 999px; background: var(--head-bg); color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
.badge.ok { background: var(--ok-bg); color: var(--ok-ink); }
.pager { display: flex; gap: 8px; justify-content: center; margin-top: 16px; }
.bars { display: flex; align-items: flex-end; gap: 6px; height: 140px; padding-top: 8px; }
.bar-col { flex: 1; display: flex; flex-direction: column; justify-content: flex-end; height: 100%; text-align: center; }
.bar { background: var(--accent); border-radius: 4px 4px 0 0; min-height: 2px; opacity: .85; }
.bar-label { font-size: 11px; color: var(--muted); margin-top: 4px; }
fieldset.card { border: 1px solid var(--line); min-width: 0; } legend { font-weight: 600; padding: 0 6px; }
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px 16px; }
.form-grid label, .time-inputs label { display: flex; flex-direction: column; gap: 4px; font-size: 13px; color: var(--muted); }
.form-grid label > span, .time-inputs label > span { font-weight: 500; }
.span-2 { grid-column: 1 / -1; }
input, select { font: inherit; color: var(--text); background: var(--bg); border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; min-width: 0; }
input:focus, select:focus { outline: 2px solid var(--accent); outline-offset: 1px; border-color: transparent; }
.upper { text-transform: uppercase; }
.inline { display: flex; gap: 8px; } .inline input { flex: 1; }
.field-err { color: var(--danger); font-size: 12px; } .has-err input { border-color: var(--danger); }
.time-grid { display: flex; flex-wrap: wrap; gap: 14px; }
.time-group { border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; max-width: 100%; min-width: 0; }
.time-cells { display: flex; gap: 14px; flex-wrap: wrap; }
.time-inputs { display: flex; gap: 8px; }
.time-inputs input { width: 72px; text-align: right; } .time-inputs input[type=time] { width: 110px; text-align: left; }
@media (max-width: 640px) {
  .time-group { flex-basis: 100%; }
  .time-cells { gap: 10px; }
  .time-inputs { flex-wrap: wrap; gap: 6px; }
  .time-inputs input { width: 64px; padding: 8px 6px; }
  .form-actions { flex-wrap: wrap; }
  .stats { grid-template-columns: repeat(2, 1fr); }
}
.total-line { margin: 14px 0 0; font-size: 16px; } #total-time { font-size: 20px; }
.form-actions { display: flex; gap: 8px; align-items: center; margin-top: 8px; }
.lookup { margin-top: 12px; }
.registry { border: 1px dashed var(--line); border-radius: 10px; padding: 12px; } .registry.ok { border-style: solid; border-color: var(--ok-ink); }
.registry-head { margin-bottom: 8px; }
.kv { display: grid; grid-template-columns: max-content 1fr; gap: 2px 14px; margin: 0; font-size: 13px; } .kv dt { color: var(--muted); } .kv dd { margin: 0; }
.lookup .flash { margin: 0; }
.preview-login { margin-top: 28px; padding-top: 16px; border-top: 1px dashed var(--line); }
.preview-login input { width: 240px; }
.login-buttons { display: flex; flex-direction: column; gap: 12px; align-items: center; }
/* Google sign-in button, following Google's branding guidelines (light + dark themes). */
.gsi-button { display: inline-flex; align-items: center; gap: 10px; height: 40px; padding: 0 12px; border-radius: 20px; border: 1px solid #747775; background: #fff; color: #1f1f1f; font: 500 14px/1 Roboto, "Segoe UI", system-ui, sans-serif; letter-spacing: .25px; text-decoration: none; min-width: 220px; justify-content: center; transition: box-shadow .2s, background .2s; }
.gsi-button:hover { box-shadow: 0 1px 2px rgba(60,64,67,.3), 0 1px 3px 1px rgba(60,64,67,.15); background: #f8f9fa; }
.gsi-icon { display: inline-flex; width: 20px; height: 20px; }
@media (prefers-color-scheme: dark) { .gsi-button { background: #131314; color: #e3e3e3; border-color: #8e918f; } .gsi-button:hover { background: #1f1f1f; } }
/* Sign in with Apple, per Apple's Human Interface Guidelines (black, logo, 44 pt tall). */
.apple-button { display: inline-flex; align-items: center; gap: 8px; height: 44px; padding: 0 16px; border-radius: 22px; background: #000; color: #fff; font: 600 16px/1 -apple-system, "SF Pro Text", system-ui, sans-serif; text-decoration: none; min-width: 220px; justify-content: center; border: 1px solid #000; }
.apple-icon { display: inline-flex; margin-top: -2px; }
@media (prefers-color-scheme: dark) { .apple-button { background: #fff; color: #000; border-color: #fff; } }
.upload-form { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.row-err td { background: var(--err-bg); } .row-warn td { background: color-mix(in srgb, var(--head-bg) 60%, transparent); }