*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html, body { max-width: 100%; overflow-x: hidden; }

:root {
  --orange:       #f97316;
  --orange-dark:  #ea580c;
  --orange-light: #ffedd5;
  --gray-900: #18181b;
  --gray-700: #3f3f46;
  --gray-500: #71717a;
  --gray-400: #a1a1aa;
  --gray-300: #d4d4d8;
  --gray-200: #e4e4e7;
  --gray-100: #f4f4f5;
  --bg:       #efefef;
  --card-bg:  #ffffff;
  --border:   #e4e4e7;
  --text:     #27272a;
}

body {
  font-family: 'Sarabun', 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  min-height: 100vh;
}

/* ── Header ── */
header {
  background: var(--gray-900);
  color: #fff;
  padding: 0.7rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 3px solid var(--orange);
}
header h1 {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}
header h1 span { color: var(--orange); }
.header-meta { font-size: 0.78rem; color: var(--gray-500); }

/* ── Layout ── */
main {
  display: grid;
  grid-template-columns: 255px 1fr;
  gap: 1rem;
  padding: 1rem;
  max-width: 1440px;
  margin: 0 auto;
}

/* ── Card ── */
.card {
  background: var(--card-bg);
  border-radius: 12px;
  padding: 1rem 1.1rem;
  box-shadow: 0 1px 3px rgba(0,0,0,0.07), 0 1px 8px rgba(0,0,0,0.04);
  border: 1px solid var(--border);
}
.card-title {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--gray-500);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.8rem;
}

/* ── Sidebar ── */
.sidebar { display: flex; flex-direction: column; gap: 0.8rem; }

/* ── KPI Card ── */
.kpi-card { text-align: center; }
.kpi-label {
  font-size: 0.72rem;
  color: var(--gray-500);
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 0.8rem;
}
.kpi-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.6rem;
  margin-bottom: 0.4rem;
}
.kpi-item { display: flex; flex-direction: column; align-items: center; gap: 0.2rem; }
.kpi-sublabel { font-size: 0.68rem; color: var(--gray-500); }
.kpi-value {
  font-size: 1.45rem;
  font-weight: 800;
  padding: 0.2rem 0.5rem;
  border-radius: 8px;
  min-width: 96px;
  text-align: center;
  letter-spacing: -0.01em;
}
.kpi-value.goal {
  color: var(--gray-700);
  background: var(--gray-100);
  border: 2px solid var(--gray-300);
}
.kpi-value.result {
  color: var(--orange-dark);
  background: var(--orange-light);
  border: 2px solid var(--orange);
}
.kpi-diff { font-size: 0.73rem; color: #ef4444; margin-top: 0.2rem; font-weight: 600; }

/* ── Donut legend ── */
.donut-legend { margin-top: 0.6rem; display: flex; flex-direction: column; gap: 0.3rem; }
.legend-item { display: flex; align-items: center; gap: 0.4rem; font-size: 0.76rem; }
.legend-dot { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }

/* ── Info card ── */
.info-card { display: flex; flex-direction: column; gap: 0.55rem; }
.info-row { display: flex; justify-content: space-between; align-items: center; }
.info-label { font-size: 0.75rem; color: var(--gray-500); }
.info-value { font-weight: 700; font-size: 0.95rem; color: var(--gray-700); }
.info-value.negative { color: #ef4444; }

/* ── Ranking card ── */
.ranking-section { display: flex; flex-direction: column; gap: 0.4rem; }
.ranking-title { font-size: 0.78rem; font-weight: 700; letter-spacing: 0.02em; }
.ranking-title.good   { color: #16a34a; }
.ranking-title.behind { color: #ef4444; }
.ranking-divider { border-top: 1px solid var(--gray-200); margin: 0.6rem 0; }
.ranking-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 0.35rem; }
.ranking-item { display: flex; justify-content: space-between; align-items: flex-start; gap: 0.4rem; }
.ranking-name { font-size: 0.75rem; color: var(--gray-700); flex: 1; line-height: 1.3; }
.ranking-diff { font-size: 0.75rem; font-weight: 700; white-space: nowrap; }
.ranking-diff.good   { color: #16a34a; }
.ranking-diff.behind { color: #ef4444; }
.ranking-rank { font-size: 0.7rem; color: var(--gray-400); min-width: 1rem; }

/* ── Status card ── */
.status-month { font-size: 0.78rem; color: var(--gray-500); text-align: center; margin-bottom: 0.6rem; }
.status-row { display: flex; justify-content: space-between; align-items: center; padding: 0.25rem 0; }
.status-label { font-size: 0.75rem; color: var(--gray-500); }
.status-val { font-weight: 700; font-size: 0.92rem; color: var(--gray-700); }
.status-val.orange { color: var(--orange); }
.status-val.behind { color: #ef4444; }
.status-val.ahead  { color: #16a34a; }
.status-divider { border-top: 1px solid var(--gray-200); margin: 0.35rem 0; }

/* ── Content ── */
.content { display: flex; flex-direction: column; gap: 0.8rem; }
.chart-card canvas { width: 100% !important; }

/* ── Sub charts ── */
.sub-charts { display: grid; grid-template-columns: 1fr 1fr; gap: 0.8rem; }

/* ── Project section ── */
.project-select-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}
.project-select-row label { font-size: 0.83rem; color: var(--gray-500); white-space: nowrap; }
.project-select-row select {
  flex: 0 1 auto;
  min-width: 160px;
  max-width: 300px;
  padding: 0.42rem 0.65rem;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  font-size: 0.85rem;
  color: var(--text);
  background: #fff;
  cursor: pointer;
  outline: none;
  transition: border-color 0.15s;
}
.project-select-row select:focus { border-color: var(--orange); }

.project-detail {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(175px, 1fr));
  gap: 0.5rem;
  background: var(--gray-100);
  border-radius: 10px;
  padding: 0.8rem;
  margin-bottom: 0.75rem;
}
.detail-item { display: flex; flex-direction: column; gap: 0.15rem; }
.detail-item--full { grid-column: 1 / -1; }
.detail-contract-row { grid-column: 1 / -1; display: flex; gap: 1.5rem; flex-wrap: wrap; }
.detail-label { font-size: 0.67rem; color: var(--gray-500); font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; }
.detail-value { font-size: 0.88rem; font-weight: 700; color: var(--gray-900); }

/* ── Monthly table ── */
.table-scroll { overflow-x: auto; border-radius: 8px; }
.monthly-table { width: 100%; border-collapse: collapse; font-size: 0.78rem; }
.monthly-table th {
  background: var(--gray-700);
  color: #fff;
  padding: 0.42rem 0.55rem;
  text-align: center;
  white-space: nowrap;
  font-weight: 600;
}
.monthly-table th:first-child { border-radius: 8px 0 0 0; }
.monthly-table th:last-child  { border-radius: 0 8px 0 0; }
.monthly-table td {
  padding: 0.35rem 0.55rem;
  text-align: center;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
.monthly-table tr:nth-child(even) td { background: var(--gray-100); }
.monthly-table .row-label { text-align: left; font-weight: 600; color: var(--gray-700); min-width: 160px; }
.monthly-table .behind { color: #ef4444; font-weight: 600; }
.monthly-table .ahead  { color: #16a34a; font-weight: 600; }

.hidden { display: none !important; }

/* ── Responsive ── */
@media (max-width: 900px) {
  main { grid-template-columns: 1fr; padding: 0.75rem; gap: 0.75rem; }
  .sub-charts { grid-template-columns: 1fr; }

  /* Header */
  header { flex-direction: column; align-items: flex-start; gap: 0.2rem; padding: 0.6rem 1rem; }
  header h1 { font-size: 0.95rem; }
  .header-meta { font-size: 0.72rem; }

  /* Sidebar: แสดงเป็น 2 คอลัมน์บน tablet */
  .sidebar { display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem; }

  /* KPI + status card: ขยายเต็มความกว้าง */
  .kpi-card, .status-card { grid-column: 1 / -1; }

  /* Donut เล็กลง */
  #chart-donut { max-height: 130px !important; }

  /* Project detail */
  .project-detail { grid-template-columns: 1fr 1fr; }
  .detail-contract-row { flex-direction: column; gap: 0.5rem; }
}

@media (max-width: 540px) {
  main { padding: 0.5rem; gap: 0.5rem; }

  /* Sidebar: 1 คอลัมน์บนมือถือ */
  .sidebar { grid-template-columns: 1fr; }
  .kpi-card, .status-card { grid-column: auto; }

  /* KPI values เล็กลง */
  .kpi-value { font-size: 1.2rem; min-width: 80px; }

  /* Donut เล็กลงอีก */
  #chart-donut { max-height: 110px !important; }

  /* Project select */
  .project-select-row { flex-direction: column; align-items: flex-start; }
  .project-select-row select { max-width: 100%; width: 100%; font-size: 16px; }

  /* Project detail */
  .project-detail { grid-template-columns: 1fr; }

  /* Header */
  header h1 { font-size: 0.85rem; }

  /* ป้องกัน canvas overflow */
  canvas { max-width: 100% !important; }

  /* Card */
  .card { padding: 0.75rem 0.85rem; }

  /* Detail contract row */
  .detail-contract-row { gap: 0.4rem; }
}