/* ── Reset & Base ──────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 14px; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Hiragino Sans', 'Yu Gothic UI', Meiryo, sans-serif;
  background: #f0f4f8;
  color: #1a2433;
  min-height: 100vh;
}
a { color: inherit; text-decoration: none; }
button { cursor: pointer; font-family: inherit; }

/* ── CSS Variables ──────────────────────────────────────────── */
:root {
  --sidebar-bg:     #1a2433;
  --sidebar-text:   #cbd5e1;
  --sidebar-hover:  rgba(255,255,255,0.05);
  --sidebar-active: #38bdf8;
  --sidebar-active-bg: rgba(56,189,248,0.1);
  --sidebar-border: rgba(255,255,255,0.07);
  --sidebar-w:      210px;

  --bg:         #f0f4f8;
  --surface:    #ffffff;
  --surface2:   #f7f9fb;

  --text:       #1a2433;
  --text2:      #64748b;
  --text3:      #94a3b8;

  --border:     #e2e8f0;
  --border2:    #cbd5e1;

  --radius:     8px;
  --radius-lg:  12px;

  --done:       #16a34a;
  --done-bg:    #dcfce7;
  --pending:    #dc2626;
  --pending-bg: #fee2e2;
  --na:         #0369a1;
  --na-bg:      #e0f2fe;

  --blue:       #3b82f6;
  --blue-bg:    #eff6ff;
  --amber:      #d97706;
  --amber-bg:   #fffbeb;
}

/* ── Layout ─────────────────────────────────────────────────── */
.layout { display: flex; min-height: 100vh; }
.main-area { flex: 1; display: flex; flex-direction: column; min-width: 0; }

/* ── Sidebar ─────────────────────────────────────────────────── */
.sidebar {
  width: var(--sidebar-w);
  background: var(--sidebar-bg);
  display: flex; flex-direction: column;
  flex-shrink: 0; position: sticky; top: 0; height: 100vh; overflow-y: auto;
}
.sidebar-logo {
  padding: 20px 18px 16px;
  border-bottom: 1px solid var(--sidebar-border);
}
.logo-sub  { display: block; font-size: 10px; color: #e2e8f0; letter-spacing: .06em; }
.logo-title { display: block; font-size: 13px; color: #e2e8f0; font-weight: 600; margin-top: 3px; line-height: 1.3; }
.sidebar-nav { list-style: none; padding: 10px 0; flex: 1; }
.sidebar-nav li a {
  display: flex; align-items: center; gap: 9px;
  padding: 9px 18px;
  font-size: 13px; color: var(--sidebar-text);
  border-left: 2px solid transparent;
  transition: all .15s;
}
.sidebar-nav li a:hover { background: var(--sidebar-hover); color: #f1f5f9; }
.sidebar-nav li a.active {
  color: var(--sidebar-active); background: var(--sidebar-active-bg);
  border-left-color: var(--sidebar-active);
}
.sidebar-nav li a i { font-size: 16px; }
.sidebar-footer { padding: 12px; border-top: 1px solid var(--sidebar-border); }
.logout-btn {
  display: flex; align-items: center; gap: 7px;
  width: 100%; padding: 8px 10px;
  background: none; border: 1px solid rgba(255,255,255,0.18);
  border-radius: var(--radius); color: #cbd5e1; font-size: 12px;
  transition: all .15s;
}
.logout-btn:hover { background: rgba(255,255,255,0.08); color: #f1f5f9; }

/* ── Topbar ──────────────────────────────────────────────────── */
.topbar {
  background: var(--surface); border-bottom: 1px solid var(--border);
  padding: 0 24px; height: 52px;
  display: flex; align-items: center;
  position: sticky; top: 0; z-index: 10;
}
.topbar-title h1 { font-size: 16px; font-weight: 600; color: var(--text); }
.topbar-subtitle { font-size: 13px; color: var(--text2); margin-left: 10px; }

/* ── Main content ──────────────────────────────────────────── */
.main-content { padding: 24px; flex: 1; }

/* ── Flash messages ─────────────────────────────────────────── */
.flash {
  display: flex; align-items: center; gap: 8px;
  padding: 12px 16px; border-radius: var(--radius);
  margin-bottom: 16px; font-size: 13px;
}
.flash i { font-size: 16px; }
.flash-success { background: var(--done-bg); color: var(--done); border: 1px solid #86efac; }
.flash-error   { background: var(--pending-bg); color: var(--pending); border: 1px solid #fca5a5; }
.flash-info    { background: var(--blue-bg); color: var(--blue); border: 1px solid #93c5fd; }

/* ── Cards ───────────────────────────────────────────────────── */
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 20px 22px; margin-bottom: 16px;
}
.card-title {
  font-size: 13px; font-weight: 600; color: var(--text2);
  margin-bottom: 16px; display: flex; align-items: center; gap: 7px;
  padding-bottom: 12px; border-bottom: 1px solid var(--border);
}
.card-title i { font-size: 16px; color: var(--sidebar-active); }

/* ── Stat grid ───────────────────────────────────────────────── */
.stat-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 12px; margin-bottom: 20px; }
.stat-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 16px 18px;
}
.stat-label { font-size: 11px; color: var(--text2); margin-bottom: 8px; font-weight: 500; }
.stat-num { font-size: 26px; font-weight: 700; color: var(--text); }
.stat-num.c-green  { color: var(--done); }
.stat-num.c-amber  { color: var(--amber); }
.stat-num.c-red    { color: var(--pending); }
.stat-num.c-blue   { color: var(--blue); }

/* ── Tables ──────────────────────────────────────────────────── */
.table-wrap { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th {
  background: var(--surface2); padding: 10px 14px;
  text-align: left; font-size: 11px; font-weight: 600;
  color: var(--text2); border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
td { padding: 10px 14px; border-bottom: 1px solid var(--border); vertical-align: middle; }
tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--surface2); }
.table-link { color: var(--blue); font-size: 12px; }
.table-link:hover { text-decoration: underline; }

/* ── Badges ──────────────────────────────────────────────────── */
.badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 3px 9px; border-radius: 20px; font-size: 11px; font-weight: 600;
}
.badge-done    { background: var(--done-bg);    color: var(--done); }
.badge-pending { background: var(--pending-bg); color: var(--pending); }
.badge-na      { background: var(--na-bg);      color: var(--na); }

/* ── Forms ───────────────────────────────────────────────────── */
.form-row { margin-bottom: 18px; }
.form-row:last-of-type { margin-bottom: 0; }
label.form-label {
  display: block; font-size: 12px; font-weight: 600;
  color: var(--text2); margin-bottom: 6px;
}
.form-required { color: var(--pending); margin-left: 3px; }
input[type="text"], input[type="date"], input[type="month"],
input[type="number"], input[type="password"], input[type="email"],
select, textarea {
  width: 100%; padding: 8px 11px;
  border: 1px solid var(--border2); border-radius: var(--radius);
  font-size: 13px; font-family: inherit; color: var(--text);
  background: var(--surface);
  transition: border-color .15s, box-shadow .15s;
  appearance: none;
}
input:focus, select:focus, textarea:focus {
  outline: none; border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(59,130,246,0.12);
}
select { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%2364748b' stroke-width='1.5' fill='none'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 10px center; padding-right: 28px; }
textarea { resize: vertical; line-height: 1.7; min-height: 80px; }

.form-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; }

/* ── Buttons ─────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 16px; border-radius: var(--radius);
  font-size: 13px; font-weight: 500; transition: all .15s;
  border: 1px solid transparent;
}
.btn i { font-size: 15px; }
.btn-primary   { background: #1a2433; color: #e2e8f0; }
.btn-primary:hover { background: #243144; }
.btn-secondary { background: var(--surface); color: var(--text2); border-color: var(--border2); }
.btn-secondary:hover { background: var(--surface2); }
.btn-danger    { background: var(--pending-bg); color: var(--pending); border-color: #fca5a5; }
.btn-danger:hover { background: #fecaca; }
.btn-success   { background: var(--done-bg); color: var(--done); border-color: #86efac; }
.btn-success:hover { background: #bbf7d0; }
.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn-sm i { font-size: 13px; }
.btn-row { display: flex; gap: 8px; margin-top: 20px; }

/* ── Status button group ─────────────────────────────────────── */
.status-group {
  display: flex; gap: 0;
  border: 1px solid var(--border2); border-radius: var(--radius); overflow: hidden;
}
.status-btn {
  flex: 1; padding: 8px 6px; text-align: center;
  font-size: 12px; font-weight: 500; cursor: pointer;
  background: var(--surface); color: var(--text2);
  border: none; border-right: 1px solid var(--border2);
  transition: all .15s; display: flex; align-items: center; justify-content: center; gap: 4px;
}
.status-btn:last-child { border-right: none; }
.status-btn input[type="radio"] { display: none; }
.status-btn.is-pending.selected { background: var(--pending-bg); color: var(--pending); font-weight: 700; }
.status-btn.is-done.selected    { background: var(--done-bg);    color: var(--done);    font-weight: 700; }
.status-btn.is-na.selected      { background: var(--na-bg);      color: var(--na);      font-weight: 700; }
.status-btn:hover { background: var(--surface2); }

/* ── Inline edit field ───────────────────────────────────────── */
.info-row {
  display: flex; align-items: center;
  padding: 10px 0; border-bottom: 1px solid var(--border);
  gap: 12px;
}
.info-row:last-child { border-bottom: none; }
.info-label { font-size: 12px; color: var(--text2); font-weight: 500; width: 120px; flex-shrink: 0; }
.info-value { flex: 1; font-size: 13px; color: var(--text); }
.info-value.empty { color: var(--text3); font-style: italic; }
.info-edit-area { display: flex; align-items: center; gap: 6px; flex: 1; }
.info-edit-area input { margin: 0; }
.info-edit-area.hidden { display: none; }
.info-display { display: flex; align-items: center; gap: 8px; flex: 1; }
.info-display.hidden { display: none; }

/* ── Work log list ───────────────────────────────────────────── */
.log-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 12px; }
.log-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 14px 16px; cursor: pointer;
  transition: all .15s;
}
.log-card:hover { border-color: var(--border2); box-shadow: 0 2px 8px rgba(0,0,0,0.06); }
.log-card-month { font-size: 14px; font-weight: 700; color: var(--text); margin-bottom: 8px; }
.log-card-date  { font-size: 11px; color: var(--text3); margin-bottom: 10px; }
.log-checks { display: flex; flex-wrap: wrap; gap: 4px; }
.log-checks .mini-badge {
  font-size: 10px; padding: 2px 6px; border-radius: 4px; font-weight: 500;
}

/* ── Work form detail section ─────────────────────────────────── */
.work-detail-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 0; border: 1px solid var(--border); border-radius: var(--radius-lg);
  overflow: hidden; background: var(--surface); margin-bottom: 16px;
}
.work-detail-row {
  display: flex; align-items: center;
  padding: 13px 16px; border-bottom: 1px solid var(--border);
  gap: 16px;
}
.work-detail-row:nth-child(even) { background: var(--surface2); }
.work-detail-row:last-child, .work-detail-row:nth-last-child(2):nth-child(odd) { border-bottom: none; }
.work-detail-label { font-size: 12px; color: var(--text2); font-weight: 500; min-width: 150px; }

/* ── Section title ─────────────────────────────────────────── */
.section-title {
  font-size: 12px; font-weight: 600; color: var(--text2);
  margin-bottom: 10px; display: flex; align-items: center; gap: 6px;
}

/* ── Modal ──────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.4);
  display: flex; align-items: center; justify-content: center; z-index: 100;
}
.modal-overlay.hidden { display: none; }
.modal {
  background: var(--surface); border-radius: var(--radius-lg);
  padding: 24px; width: 480px; max-width: 90vw; box-shadow: 0 20px 60px rgba(0,0,0,0.2);
}
.modal h2 { font-size: 15px; margin-bottom: 16px; }

/* ── Login page ─────────────────────────────────────────────── */
.login-wrap {
  min-height: 100vh; display: flex; align-items: center;
  justify-content: center; background: #0f172a;
}
.login-box {
  background: var(--surface); border-radius: var(--radius-lg);
  padding: 36px 40px; width: 360px; box-shadow: 0 24px 80px rgba(0,0,0,0.4);
}
.login-logo { text-align: center; margin-bottom: 28px; }
.login-logo span { font-size: 22px; font-weight: 700; color: #1a2433; display: block; }
.login-logo small { font-size: 12px; color: var(--text2); }

/* ── Misc helpers ───────────────────────────────────────────── */
.text-sm  { font-size: 12px; }
.text-muted { color: var(--text2); }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.d-flex { display: flex; }
.align-center { align-items: center; }
.gap-8  { gap: 8px; }
.gap-12 { gap: 12px; }
.justify-between { justify-content: space-between; }
.full-width { width: 100%; }
.text-center { text-align: center; }
.w-180 { width: 180px; }
.w-120 { width: 120px; }

/* ── Progress bar ───────────────────────────────────────────── */
.progress { height: 5px; background: var(--border); border-radius: 3px; width: 80px; }
.progress-fill { height: 100%; border-radius: 3px; background: var(--done); }

/* ── Import drag area ───────────────────────────────────────── */
.drop-area {
  border: 2px dashed var(--border2); border-radius: var(--radius-lg);
  padding: 36px; text-align: center; cursor: pointer; transition: all .2s;
}
.drop-area:hover, .drop-area.drag-over { border-color: var(--blue); background: var(--blue-bg); }
.drop-area i { font-size: 36px; color: var(--text3); display: block; margin-bottom: 10px; }
.drop-area p { font-size: 13px; color: var(--text2); }

/* ── Backup file list ───────────────────────────────────────── */
.backup-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 14px; border-bottom: 1px solid var(--border); font-size: 13px;
}
.backup-row:last-child { border-bottom: none; }
.backup-name { font-family: monospace; font-size: 12px; color: var(--text); }
.backup-info { font-size: 11px; color: var(--text3); margin-top: 2px; }

/* ── Sidebar sub-item (dynamic client tab) ──────────────────── */
.sidebar-sub-item a {
  padding-left: 28px;
  font-size: 12px;
  color: var(--sidebar-active) !important;
  background: var(--sidebar-active-bg);
  border-left: 2px solid var(--sidebar-active);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  display: block;
}
.sidebar-sub-item a i {
  font-size: 13px;
  flex-shrink: 0;
}

/* ── Status buttons - wider to prevent wrap ─────────────────── */
.status-group {
  min-width: 300px;
}
.status-btn {
  min-width: 90px;
  padding: 8px 10px;
  white-space: nowrap;
}