:root {
  --primary: #f59e0b;
  --primary-dark: #d97706;
  --primary-light: #fef3c7;
  --navy: #0f2a43;
  --navy-2: #16405f;
  --bg: #f4f6f9;
  --card: #ffffff;
  --text: #1e293b;
  --text-2: #64748b;
  --border: #e2e8f0;
  --green: #16a34a;
  --red: #dc2626;
  --blue: #2563eb;
  --radius: 12px;
  --shadow: 0 1px 3px rgba(15, 42, 67, .08), 0 4px 16px rgba(15, 42, 67, .06);
  --shadow-lg: 0 8px 30px rgba(15, 42, 67, .14);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 15px; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ---------- Top bar ---------- */
.topbar {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-2) 100%);
  color: #fff;
  padding: 0 20px;
  height: 60px;
  display: flex;
  align-items: center;
  gap: 16px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 10px rgba(0,0,0,.18);
}
.topbar .brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: #fff;
  min-width: 0;
}
.topbar .logo {
  width: 38px; height: 38px;
  background: linear-gradient(135deg, var(--primary), #fbbf24);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}
.topbar .brand-name { font-weight: 700; font-size: 1.05rem; white-space: nowrap; }
.topbar .brand-sub { font-size: .72rem; opacity: .75; white-space: nowrap; }
.topbar .spacer { flex: 1; }
.topbar .lang-bar {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
}
.topbar .lang-btn {
  background: rgba(255,255,255,.10);
  color: #fff;
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 7px;
  padding: 4px 8px;
  font-size: .78rem;
  line-height: 1;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  transition: background .15s, border-color .15s;
  white-space: nowrap;
}
.topbar .lang-btn:hover { background: rgba(255,255,255,.22); }
.topbar .lang-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
  font-weight: 600;
}
.topbar .btn-top {
  background: rgba(255,255,255,.12);
  color: #fff;
  border: 1px solid rgba(255,255,255,.25);
  border-radius: 8px;
  padding: 7px 14px;
  font-size: .85rem;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: background .15s;
  white-space: nowrap;
}
.topbar .btn-top:hover { background: rgba(255,255,255,.22); }
.topbar .btn-top.primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.topbar .btn-top.primary:hover { background: var(--primary-dark); }

/* ---------- Layout ---------- */
.container { max-width: 1200px; margin: 0 auto; padding: 24px 20px; width: 100%; flex: 1; }
.page-header { margin-bottom: 20px; }
.page-header h1 { font-size: 1.5rem; color: var(--navy); display: flex; align-items: center; gap: 10px; }
.page-header p { color: var(--text-2); margin-top: 4px; }

/* ---------- Cards ---------- */
.card {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
  margin-bottom: 20px;
  border: 1px solid var(--border);
}
.card-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.card-title .icon { font-size: 1.15rem; }
.card-sub { color: var(--text-2); font-size: .85rem; margin-top: -8px; margin-bottom: 14px; }

/* ---------- Grid ---------- */
.grid { display: grid; gap: 16px; }
.grid-2 { grid-template-columns: 1fr 1fr; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-5 { grid-template-columns: repeat(5, 1fr); }
@media (max-width: 900px) { .grid-4 { grid-template-columns: repeat(2,1fr); } .grid-3 { grid-template-columns: 1fr 1fr; } .grid-5 { grid-template-columns: repeat(3,1fr); } }
@media (max-width: 640px) { .grid-2, .grid-3, .grid-4, .grid-5 { grid-template-columns: 1fr; } }

/* ---------- Forms ---------- */
label.field { display: block; margin-bottom: 12px; font-size: .88rem; }
label.field .lbl { display: block; font-weight: 600; color: var(--text); margin-bottom: 5px; }
label.field .hint { font-weight: 400; color: var(--text-2); font-size: .8rem; }
input[type=text], input[type=number], input[type=date], select, textarea {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: .92rem;
  background: #fff;
  color: var(--text);
  outline: none;
  transition: border-color .15s, box-shadow .15s;
}
input:focus, select:focus, textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(245,158,11,.15);
}
input[type=number] { font-variant-numeric: tabular-nums; }
.input-group { display: flex; gap: 8px; align-items: center; }
.input-group input, .input-group select { flex: 1; }
.unit { color: var(--text-2); font-size: .8rem; white-space: nowrap; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  padding: 10px 18px;
  border-radius: 9px;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--text);
  font-size: .92rem;
  font-weight: 600;
  cursor: pointer;
  transition: all .15s;
  text-decoration: none;
  white-space: nowrap;
}
.btn:hover { border-color: var(--primary); color: var(--primary-dark); }
.btn.primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn.primary:hover { background: var(--primary-dark); color: #fff; }
.btn.navy { background: var(--navy); border-color: var(--navy); color: #fff; }
.btn.navy:hover { background: var(--navy-2); color: #fff; }
.btn.green { background: var(--green); border-color: var(--green); color: #fff; }
.btn.green:hover { background: #15803d; color: #fff; }
.btn.ghost { background: transparent; }
.btn.sm { padding: 6px 12px; font-size: .82rem; }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn-row { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 8px; }

/* ---------- Tables ---------- */
.table-wrap { overflow-x: auto; border-radius: 8px; border: 1px solid var(--border); }
table.data { width: 100%; border-collapse: collapse; font-size: .88rem; }
table.data th, table.data td { padding: 9px 12px; text-align: right; border-bottom: 1px solid var(--border); white-space: nowrap; }
table.data th { background: var(--navy); color: #fff; font-weight: 600; text-align: right; }
table.data th:first-child, table.data td:first-child { text-align: left; }
table.data tbody tr:hover { background: #f8fafc; }
table.data tbody tr:last-child td { border-bottom: none; }
table.data tfoot td { font-weight: 700; background: var(--primary-light); }
table.data td.num { font-variant-numeric: tabular-nums; }
table.data .mon { font-weight: 600; color: var(--navy); }

/* ---------- Stat cards ---------- */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 14px; margin-bottom: 20px; }
.stat {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow);
  text-align: center;
}
.stat .v { font-size: 1.5rem; font-weight: 800; color: var(--navy); font-variant-numeric: tabular-nums; }
.stat .v.green { color: var(--green); }
.stat .v.orange { color: var(--primary-dark); }
.stat .l { font-size: .8rem; color: var(--text-2); margin-top: 2px; }

/* ---------- Alerts / badges ---------- */
.badge { display: inline-block; padding: 3px 10px; border-radius: 20px; font-size: .75rem; font-weight: 600; }
.badge.green { background: #dcfce7; color: #166534; }
.badge.orange { background: #fef3c7; color: #92400e; }
.badge.gray { background: #f1f5f9; color: #475569; }
.badge.red { background: #fee2e2; color: #991b1b; }
.badge.blue { background: #dbeafe; color: #1e40af; }

.alert { padding: 12px 16px; border-radius: 10px; margin-bottom: 16px; font-size: .9rem; display: flex; gap: 10px; align-items: flex-start; }
.alert.info { background: #eff6ff; border: 1px solid #bfdbfe; color: #1e40af; }
.alert.warn { background: #fffbeb; border: 1px solid #fde68a; color: #92400e; }
.alert.err { background: #fef2f2; border: 1px solid #fecaca; color: #991b1b; }
.alert.ok { background: #f0fdf4; border: 1px solid #bbf7d0; color: #166534; }

/* ---------- Steps ---------- */
.steps { display: flex; gap: 6px; margin-bottom: 22px; flex-wrap: wrap; }
.step {
  flex: 1; min-width: 120px;
  padding: 10px 12px;
  border-radius: 10px;
  background: #fff;
  border: 2px solid var(--border);
  color: var(--text-2);
  font-size: .85rem;
  font-weight: 600;
  text-align: center;
  text-decoration: none;
  transition: all .15s;
}
.step .n { display: inline-block; width: 22px; height: 22px; line-height: 22px; border-radius: 50%; background: var(--border); color: var(--text-2); font-size: .75rem; margin-right: 6px; }
.step.active { border-color: var(--primary); color: var(--primary-dark); background: var(--primary-light); }
.step.active .n { background: var(--primary); color: #fff; }
.step.done { border-color: var(--green); color: var(--green); }
.step.done .n { background: var(--green); color: #fff; }
@media (max-width: 640px) { .step { min-width: 100%; } }

/* ---------- Project cards (dashboard) ---------- */
.project-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 16px; }
.project-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow);
  cursor: pointer;
  transition: all .18s;
  position: relative;
  display: block;
  text-decoration: none;
  color: inherit;
}
.project-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); border-color: var(--primary); }
.project-card .pc-title { font-weight: 700; color: var(--navy); font-size: 1rem; margin-bottom: 6px; }
.project-card .pc-meta { font-size: .8rem; color: var(--text-2); display: flex; flex-direction: column; gap: 3px; }
.project-card .pc-cap { font-size: 1.2rem; font-weight: 800; color: var(--primary-dark); margin: 8px 0; }
.project-card .pc-actions { display: flex; gap: 8px; margin-top: 10px; }
.project-card .pc-actions .btn { flex: 1; }
.project-card .pc-del { position: absolute; top: 10px; right: 10px; background: none; border: none; color: var(--text-2); cursor: pointer; font-size: 1rem; padding: 4px; border-radius: 6px; }
.project-card .pc-del:hover { color: var(--red); background: #fee2e2; }

/* ---------- Feature cards ---------- */
.feature-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 16px; margin-top: 20px; }
.feature-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
  text-decoration: none;
  color: inherit;
  transition: all .18s;
}
.feature-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); border-color: var(--primary); }
.feature-card .fc-icon { font-size: 1.8rem; margin-bottom: 10px; }
.feature-card .fc-title { font-weight: 700; color: var(--navy); margin-bottom: 5px; }
.feature-card .fc-desc { font-size: .82rem; color: var(--text-2); }

/* ---------- Tabs ---------- */
.tabs { display: flex; gap: 4px; border-bottom: 2px solid var(--border); margin-bottom: 18px; flex-wrap: wrap; }
.tab {
  padding: 9px 18px;
  border: none;
  background: none;
  font-size: .9rem;
  font-weight: 600;
  color: var(--text-2);
  cursor: pointer;
  border-bottom: 3px solid transparent;
  margin-bottom: -2px;
  transition: all .15s;
}
.tab:hover { color: var(--primary-dark); }
.tab.active { color: var(--primary-dark); border-bottom-color: var(--primary); }

/* ---------- Chart containers ---------- */
.chart-box { width: 100%; height: 340px; position: relative; }
.chart-box.sm { height: 260px; }
canvas { width: 100% !important; height: 100% !important; display: block; }

/* ---------- Loss diagram ---------- */
.loss-diagram { display: flex; flex-direction: column; gap: 4px; }
.loss-row { display: grid; grid-template-columns: 130px 1fr 90px; align-items: center; gap: 10px; font-size: .85rem; }
.loss-row .lbl { color: var(--text-2); text-align: right; }
.loss-row .bar { height: 22px; background: var(--border); border-radius: 5px; overflow: hidden; position: relative; }
.loss-row .bar .fill { height: 100%; border-radius: 5px; transition: width .4s; }
.loss-row .val { text-align: right; font-weight: 600; font-variant-numeric: tabular-nums; }
.loss-row.gain .bar .fill { background: linear-gradient(90deg, #4ade80, #16a34a); }
.loss-row.loss .bar .fill { background: linear-gradient(90deg, #fca5a5, #dc2626); }

/* ---------- Footer ---------- */
.footer {
  background: var(--navy);
  color: rgba(255,255,255,.75);
  padding: 18px 20px;
  text-align: center;
  font-size: .8rem;
  margin-top: 30px;
}
.footer a { color: var(--primary); text-decoration: none; }

/* ---------- Misc ---------- */
.muted { color: var(--text-2); font-size: .85rem; }
.mt-0 { margin-top: 0; } .mt-1 { margin-top: 8px; } .mt-2 { margin-top: 16px; } .mt-3 { margin-top: 24px; }
.mb-1 { margin-bottom: 8px; } .mb-2 { margin-bottom: 16px; } .mb-3 { margin-bottom: 24px; }
.flex { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.flex-between { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px; }
.text-center { text-align: center; }
.hidden { display: none !important; }
.spin { display: inline-block; width: 16px; height: 16px; border: 2px solid rgba(255,255,255,.4); border-top-color: #fff; border-radius: 50%; animation: spin .7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* Toast */
#toast { position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%); background: var(--navy); color: #fff; padding: 12px 22px; border-radius: 10px; font-size: .9rem; box-shadow: var(--shadow-lg); z-index: 999; opacity: 0; transition: opacity .25s; pointer-events: none; }
#toast.show { opacity: 1; }

/* Modal */
.modal-mask { position: fixed; inset: 0; background: rgba(15,42,67,.5); display: none; align-items: center; justify-content: center; z-index: 200; padding: 20px; }
.modal-mask.show { display: flex; }
.modal { background: #fff; border-radius: 14px; max-width: 520px; width: 100%; padding: 24px; box-shadow: var(--shadow-lg); max-height: 90vh; overflow-y: auto; }
.modal h3 { color: var(--navy); margin-bottom: 14px; }

/* Print */
@media print {
  .topbar, .steps, .no-print, .footer { display: none !important; }
  body { background: #fff; }
  .card { box-shadow: none; border: 1px solid #ccc; break-inside: avoid; }
  .container { max-width: 100%; padding: 0; }
}