:root {
    --navy:   #0d1b2a;
    --navy2:  #132338;
    --navy3:  #1c3352;
    --teal:   #2dd4bf;
    --teal2:  #14b8a6;
    --amber:  #f59e0b;
    --red:    #ef4444;
    --text:   #e2e8f0;
    --muted:  #7a8fa8;
    --border: rgba(45,212,191,0.15);
    --card:   rgba(19,35,56,0.9);
  }
  * { margin: 0; padding: 0; box-sizing: border-box; }
  html { font-size: 15px; }
  body {
    font-family: 'Syne', sans-serif;
    background: var(--navy);
    color: var(--text);
    min-height: 100vh;
    background-image:
      radial-gradient(ellipse 80% 60% at 50% -20%, rgba(45,212,191,0.07) 0%, transparent 70%),
      repeating-linear-gradient(0deg, transparent, transparent 39px, rgba(45,212,191,0.03) 40px),
      repeating-linear-gradient(90deg, transparent, transparent 39px, rgba(45,212,191,0.03) 40px);
  }

  /* ── Layout ── */
  .shell { display: flex; min-height: 100vh; }

  nav {
    width: 220px;
    flex-shrink: 0;
    background: var(--navy2);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    padding: 32px 0;
    position: fixed;
    top: 0; left: 0; bottom: 0;
  }

  .logo {
    padding: 0 24px 32px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 24px;
  }
  .logo-icon {
    font-size: 24px;
    margin-bottom: 6px;
  }
  .logo h1 {
    font-size: 1.1rem;
    font-weight: 800;
    letter-spacing: 0.05em;
    color: var(--teal);
    text-transform: uppercase;
  }
  .logo p {
    font-size: 0.7rem;
    color: var(--muted);
    font-family: 'DM Mono', monospace;
    margin-top: 2px;
  }

  .nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 11px 24px;
    color: var(--muted);
    cursor: pointer;
    transition: all 0.15s;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.03em;
    border-left: 3px solid transparent;
  }
  .nav-item:hover { color: var(--text); background: rgba(45,212,191,0.05); }
  .nav-item.active {
    color: var(--teal);
    border-left-color: var(--teal);
    background: rgba(45,212,191,0.08);
  }
  .nav-icon { font-size: 1rem; width: 20px; text-align: center; }

  .nav-year {
    margin-top: auto;
    padding: 16px 24px;
    border-top: 1px solid var(--border);
  }
  .nav-year label { font-size: 0.7rem; color: var(--muted); font-family: 'DM Mono', monospace; display: block; margin-bottom: 6px; }
  .nav-year select {
    width: 100%;
    background: var(--navy3);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 7px 10px;
    border-radius: 6px;
    font-family: 'DM Mono', monospace;
    font-size: 0.85rem;
    cursor: pointer;
  }

  main {
    margin-left: 220px;
    flex: 1;
    padding: 40px;
    max-width: 1100px;
  }

  /* ── Pages ── */
  .page { display: none; }
  .page.active { display: block; }

  .page-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 32px;
    gap: 16px;
    flex-wrap: wrap;
  }
  .page-title h2 {
    font-size: 1.9rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--text);
  }
  .page-title p { color: var(--muted); font-size: 0.85rem; margin-top: 4px; }

  .actions { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
  .search-input {
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--surface);
    color: var(--text);
    font-size: 0.85rem;
    width: 200px;
    outline: none;
  }
  .search-input:focus { border-color: var(--teal); }

  /* ── Buttons ── */
  .btn {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 9px 18px;
    border-radius: 8px;
    font-family: 'Syne', sans-serif;
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.03em;
    cursor: pointer;
    border: none;
    transition: all 0.15s;
    white-space: nowrap;
  }
  .btn-primary { background: var(--teal); color: var(--navy); }
  .btn-primary:hover { background: var(--teal2); transform: translateY(-1px); }
  .btn-ghost { background: transparent; color: var(--muted); border: 1px solid var(--border); }
  .btn-ghost:hover { color: var(--text); border-color: var(--teal); }
  .btn-amber { background: rgba(245,158,11,0.15); color: var(--amber); border: 1px solid rgba(245,158,11,0.3); }
  .btn-amber:hover { background: rgba(245,158,11,0.25); }
  .btn-sm { padding: 5px 12px; font-size: 0.76rem; }
  .btn:disabled { opacity: 0.4; cursor: not-allowed; transform: none !important; }

  /* ── Stats cards ── */
  .stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 16px; margin-bottom: 32px; }
  .stat-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px 24px;
    backdrop-filter: blur(10px);
  }
  .stat-label { font-size: 0.7rem; font-family: 'DM Mono', monospace; color: var(--muted); text-transform: uppercase; letter-spacing: 0.08em; }
  .stat-value { font-size: 2rem; font-weight: 800; color: var(--teal); margin-top: 6px; }
  .stat-sub { font-size: 0.75rem; color: var(--muted); margin-top: 4px; }

  /* ── Table ── */
  .table-wrap {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
    backdrop-filter: blur(10px);
  }
  table { width: 100%; border-collapse: collapse; }
  thead { background: var(--navy3); }
  th {
    text-align: left;
    padding: 12px 16px;
    font-size: 0.72rem;
    font-family: 'DM Mono', monospace;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 500;
  }
  td {
    padding: 13px 16px;
    font-size: 0.85rem;
    border-top: 1px solid var(--border);
  }
  tr:hover td { background: rgba(45,212,191,0.03); }
  .td-actions { display: flex; gap: 6px; align-items: center; }

  /* ── Badges ── */
  .badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 3px 9px;
    border-radius: 20px;
    font-size: 0.72rem;
    font-family: 'DM Mono', monospace;
    font-weight: 500;
  }
  .badge-boat  { background: rgba(45,212,191,0.12); color: var(--teal); }
  .badge-park  { background: rgba(245,158,11,0.12); color: var(--amber); }
  .badge-dock  { background: rgba(99,102,241,0.12); color: #818cf8; }
  .badge-pole  { background: rgba(236,72,153,0.12); color: #f472b6; }
  .badge-ok    { background: rgba(34,197,94,0.12); color: #4ade80; }
  .badge-miss  { background: rgba(239,68,68,0.1); color: #f87171; }

  /* ── Invoice status row ── */
  .inv-dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }
  .inv-dot.ok   { background: #4ade80; box-shadow: 0 0 6px #4ade80; }
  .inv-dot.miss { background: #f87171; }

  /* ── Modal ── */
  .modal-overlay {
    display: none;
    position: fixed; inset: 0;
    background: rgba(0,0,0,0.7);
    backdrop-filter: blur(4px);
    z-index: 100;
    align-items: center;
    justify-content: center;
  }
  .modal-overlay.open { display: flex; }
  .modal {
    background: var(--navy2);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 32px;
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
  }
  .modal h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 24px; color: var(--teal); }

  /* ── Form ── */
  .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
  .form-grid .full { grid-column: 1 / -1; }
  .field { display: flex; flex-direction: column; gap: 6px; }
  .field label { font-size: 0.72rem; font-family: 'DM Mono', monospace; color: var(--muted); text-transform: uppercase; letter-spacing: 0.06em; }
  .field input, .field select {
    background: var(--navy3);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 9px 12px;
    border-radius: 8px;
    font-family: 'Syne', sans-serif;
    font-size: 0.9rem;
    outline: none;
    transition: border-color 0.15s;
  }
  .field input:focus, .field select:focus { border-color: var(--teal); }
  .modal-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 28px; }

  /* ── Toast ── */
  #toast {
    position: fixed;
    bottom: 28px; right: 28px;
    background: var(--navy2);
    border: 1px solid var(--teal);
    border-radius: 10px;
    padding: 13px 20px;
    font-size: 0.85rem;
    display: none;
    z-index: 200;
    animation: slideUp 0.2s ease;
    max-width: 320px;
  }
  #toast.error { border-color: var(--red); }
  @keyframes slideUp {
    from { opacity: 0; transform: translateY(10px); }
    to   { opacity: 1; transform: translateY(0); }
  }

  /* ── Loading ── */
  .spinner { display: inline-block; width: 14px; height: 14px; border: 2px solid rgba(45,212,191,0.3); border-top-color: var(--teal); border-radius: 50%; animation: spin 0.6s linear infinite; }
  @keyframes spin { to { transform: rotate(360deg); } }

  .empty { text-align: center; padding: 60px 20px; color: var(--muted); }
  .empty p { font-size: 0.85rem; margin-top: 8px; }