:root {
    --bg: #ffffff;
    --ink: #0a0a0a;
    --gray-50: #fafafa;
    --gray-100: #f5f5f5;
    --gray-200: #e9e9e9;
    --gray-300: #d4d4d4;
    --gray-400: #a3a3a3;
    --gray-500: #737373;
    --dot-color: 10, 10, 10;
    --dot-alpha: 0.9;
    color-scheme: light;
  }
  html.dark {
    --bg: #0c0c0f;
    --ink: #f4f4f5;
    --gray-50: #18181b;
    --gray-100: #1e1e22;
    --gray-200: #2a2a30;
    --gray-300: #3a3a42;
    --gray-400: #8a8a92;
    --gray-500: #a0a0a8;
    --dot-color: 244, 244, 245;
    --dot-alpha: 0.42;
    color-scheme: dark;
  }
  * { box-sizing: border-box; }
  html, body {
    background: var(--bg);
    color: var(--ink);
    margin: 0;
    padding: 0;
    font-family: 'Geist', system-ui, sans-serif;
    font-size: 15px;
    transition: background-color .5s ease, color .5s ease;
  }
  ::selection { background: var(--ink); color: var(--bg); }
  ::-webkit-scrollbar { width: 6px; height: 6px; }
  ::-webkit-scrollbar-track { background: transparent; }
  ::-webkit-scrollbar-thumb { background: var(--gray-300); border-radius: 999px; }

  a { color: var(--ink); }

  .mono { font-family: 'Geist Mono', ui-monospace, monospace; }
  .micro-label {
    font-family: 'Geist Mono', ui-monospace, monospace;
    font-size: 10px;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--gray-400);
  }

  .topbar {
    position: sticky;
    top: 0;
    z-index: 20;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.85rem 1.5rem;
    background: color-mix(in srgb, var(--bg) 90%, transparent);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--gray-200);
  }
  .brand {
    font-family: 'Geist Mono', ui-monospace, monospace;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 12px;
  }
  .theme-toggle {
    display: flex;
    gap: 2px;
    border: 1px solid var(--gray-200);
    border-radius: 999px;
    padding: 2px;
  }
  .theme-toggle button {
    border: none;
    background: transparent;
    color: var(--gray-400);
    padding: 5px;
    border-radius: 999px;
    cursor: pointer;
    transition: background-color .2s ease, color .2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
  }
  .theme-toggle button svg {
    display: block;
    overflow: visible;
    flex-shrink: 0;
    stroke: var(--gray-400);
  }
  .theme-toggle button.active {
    background: var(--ink);
    color: var(--bg);
  }
  .theme-toggle button.active svg {
    stroke: var(--bg);
  }

  main {
    max-width: 56rem;
    margin: 0 auto;
    padding: 0 1.5rem 6rem;
  }

  .hero {
    position: relative;
    padding: 3.5rem 0 2.5rem;
    overflow: hidden;
  }
  .hero-dots {
    position: absolute;
    inset: 0;
    pointer-events: none;
    background-image: radial-gradient(circle, rgba(var(--dot-color), var(--dot-alpha)) 1px, transparent 1px);
    background-size: 9px 9px;
    -webkit-mask-image: radial-gradient(ellipse 60% 100% at 100% 0%, black, transparent 70%);
    mask-image: radial-gradient(ellipse 60% 100% at 100% 0%, black, transparent 70%);
    opacity: 0.7;
  }
  .page-title {
    position: relative;
    font-family: 'Geist Mono', ui-monospace, monospace;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 2.6rem;
    line-height: 1;
    margin: 0 0 0.6rem;
  }
  .page-sub {
    position: relative;
    color: var(--gray-500);
    max-width: 32rem;
    margin: 0;
    font-size: 14px;
  }

  section { margin-bottom: 3.5rem; }
  .section-label {
    font-family: 'Geist Mono', ui-monospace, monospace;
    font-size: 11px;
    letter-spacing: 1px;
    text-transform: none;
    color: var(--gray-400);
    margin: 0 0 1rem;
  }

  .card {
    border: 1px solid var(--gray-200);
    border-radius: 16px;
    background: var(--gray-50);
    padding: 1.25rem;
    box-shadow: 0 8px 22px -14px rgba(0,0,0,0.25);
    overflow: hidden;
  }
  html.dark .card { box-shadow: none; }

  .form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(160px, 100%), 1fr));
    gap: 1rem;
  }
  .field label {
    display: block;
    margin-bottom: 0.4rem;
  }
  .field input[type="date"],
  .field input[type="number"] {
    width: 100%;
    background: var(--bg);
    border: 1px solid var(--gray-200);
    border-radius: 6px;
    padding: 0.55rem 0.65rem;
    font-family: 'Geist Mono', ui-monospace, monospace;
    font-size: 13px;
    color: var(--ink);
  }
  .field input[type="date"] {
    appearance: none;
    -webkit-appearance: none;
    position: relative;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 14 14' fill='none' stroke='%23737373' stroke-width='1.3' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect x='1.5' y='2.5' width='11' height='10' rx='1.5'/%3E%3Cpath d='M4 1v2M10 1v2M1.5 6h11'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.65rem center;
    padding-right: 2rem;
  }
  .field input[type="date"]::-webkit-calendar-picker-indicator {
    opacity: 0;
    position: absolute;
    right: 0;
    width: 2rem;
    height: 100%;
    cursor: pointer;
  }
  .field input:focus { outline: 1px solid var(--gray-300); outline-offset: 1px; }

  .checkbox-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 1rem;
  }
  .checkbox-row input { accent-color: var(--ink); }
  .checkbox-row label { margin: 0; }

  .actions {
    display: flex;
    gap: 0.75rem;
    margin-top: 1.25rem;
    flex-wrap: wrap;
  }

  .btn {
    font-family: 'Geist Mono', ui-monospace, monospace;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-radius: 8px;
    padding: 0.6rem 1rem;
    cursor: pointer;
    border: 1px solid var(--gray-200);
    background: transparent;
    color: var(--ink);
    transition: background-color .2s ease, color .2s ease, border-color .2s ease;
  }
  .btn:hover { border-color: var(--gray-300); }
  .btn-primary {
    background: var(--ink);
    color: var(--bg);
    border-color: var(--ink);
  }
  .btn-primary:hover { opacity: 0.85; }
  .btn-ghost {
    color: var(--gray-500);
    border-color: transparent;
  }
  .btn-ghost:hover { color: var(--ink); }

  .stat-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    border: 1px solid var(--gray-200);
    border-radius: 16px;
    overflow: hidden;
  }
  .stat-cell {
    padding: 1.1rem 1rem;
    border-right: 1px solid var(--gray-200);
    border-bottom: 1px solid var(--gray-200);
  }
  .stat-cell:last-child { border-right: none; }
  .stat-value {
    font-family: 'Geist Mono', ui-monospace, monospace;
    font-weight: 700;
    font-size: 1.5rem;
    line-height: 1;
    margin-bottom: 0.4rem;
  }
  .stat-label {
    font-family: 'Geist Mono', ui-monospace, monospace;
    font-size: 9px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--gray-400);
  }

  .progress-track {
    margin-top: 1rem;
    height: 6px;
    border-radius: 999px;
    background: var(--gray-100);
    overflow: hidden;
  }
  .progress-fill {
    height: 100%;
    background: var(--ink);
    border-radius: 999px;
    transition: width .5s cubic-bezier(0.16,1,0.3,1);
  }

  .hint-banner {
    display: none;
    margin-top: 1rem;
    padding: 0.75rem 1rem;
    border: 1px dashed var(--gray-300);
    border-radius: 12px;
    font-size: 13px;
    color: var(--gray-500);
  }
  .hint-banner.show { display: block; }

  table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
  }
  thead th {
    text-align: left;
    font-family: 'Geist Mono', ui-monospace, monospace;
    font-size: 9px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--gray-400);
    font-weight: 500;
    padding: 0.6rem 0.6rem;
    border-bottom: 1px solid var(--gray-200);
  }
  tbody td {
    padding: 0.55rem 0.6rem;
    border-bottom: 1px solid var(--gray-200);
    vertical-align: middle;
  }
  tbody tr.today { background: var(--gray-50); }
  tbody tr.future td { color: var(--gray-400); }

  .day-name { color: var(--gray-500); }

  .hours-input {
    width: 4.5rem;
    background: var(--bg);
    border: 1px solid var(--gray-200);
    border-radius: 6px;
    padding: 0.35rem 0.4rem;
    font-family: 'Geist Mono', ui-monospace, monospace;
    font-size: 13px;
    color: var(--ink);
  }
  .hours-input:focus { outline: 1px solid var(--gray-300); outline-offset: 1px; }

  .pill {
    display: inline-block;
    font-family: 'Geist Mono', ui-monospace, monospace;
    font-size: 9px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 2px 8px;
    border-radius: 999px;
    border: 1px solid var(--gray-300);
    color: var(--gray-500);
  }
  .pill.done { background: var(--ink); color: var(--bg); border-color: var(--ink); }
  .pill.absent { color: var(--gray-500); border-style: dashed; }
  .pill.holiday { color: var(--gray-500); border-style: dashed; }

  .hours-input[disabled] {
    color: var(--gray-400);
    background: var(--gray-100);
    cursor: not-allowed;
  }

  .actions-cell { text-align: right; position: relative; }
  .actions-menu { position: relative; display: inline-block; }
  .actions-menu > summary {
    list-style: none;
    cursor: pointer;
    width: 26px;
    height: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--gray-200);
    border-radius: 6px;
    color: var(--gray-500);
    font-family: 'Geist Mono', ui-monospace, monospace;
    font-size: 13px;
    line-height: 1;
    user-select: none;
    transition: background-color .2s ease, color .2s ease, border-color .2s ease;
  }
  .actions-menu > summary::-webkit-details-marker { display: none; }
  .actions-menu > summary::marker { content: ''; }
  .actions-menu > summary:hover { color: var(--ink); border-color: var(--gray-300); }
  .actions-menu[open] > summary { background: var(--gray-100); color: var(--ink); }
  .actions-panel {
    position: absolute;
    top: calc(100% + 4px);
    right: 0;
    min-width: 152px;
    background: var(--bg);
    border: 1px solid var(--gray-200);
    border-radius: 12px;
    box-shadow: 0 18px 36px -20px rgba(0,0,0,0.4);
    padding: 0.35rem;
    z-index: 30;
  }
  .menu-item {
    display: flex;
    align-items: center;
    width: 100%;
    gap: 6px;
    padding: 0.45rem 0.6rem;
    border: none;
    background: transparent;
    color: var(--ink);
    font-family: 'Geist', system-ui, sans-serif;
    font-size: 13px;
    text-align: left;
    border-radius: 8px;
    cursor: pointer;
  }
  .menu-item:hover { background: var(--gray-100); }
  .menu-item .check {
    margin-left: auto;
    font-family: 'Geist Mono', monospace;
    font-size: 11px;
    color: var(--gray-400);
  }
  .menu-divider { height: 1px; background: var(--gray-200); margin: 0.3rem 0.2rem; }

  .table-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 1rem;
  }

  #tableWrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }

  .empty-state {
    border: 1px solid var(--gray-200);
    border-radius: 16px;
    padding: 2.5rem 1.5rem;
    text-align: center;
    color: var(--gray-500);
  }

  footer {
    max-width: 56rem;
    margin: 0 auto;
    padding: 1.5rem;
    color: var(--gray-400);
    font-family: 'Geist Mono', monospace;
    font-size: 11px;
    text-align: center;
  }
  footer p { margin: 0.3rem 0 0; }
  footer p:first-child { margin-top: 0; }
  .footer-credit { color: var(--gray-400); letter-spacing: 0.5px; }

  .fade-up {
    opacity: 0;
    transform: translateY(12px);
    animation: fadeUp .7s cubic-bezier(0.16,1,0.3,1) forwards;
  }
  @keyframes fadeUp { to { opacity: 1; transform: translateY(0); } }

  @media (max-width: 720px) {
    .topbar { padding: 0.75rem 1rem; }
    main { padding: 0 1rem 4rem; }
    .hero { padding: 2rem 0 1.5rem; }
    .page-title { font-size: 1.8rem; }
    .page-sub { font-size: 13px; }
    .stat-grid { grid-template-columns: repeat(2, 1fr); }
    .stat-cell:nth-child(2) { border-right: none; }
    .stat-value { font-size: 1.25rem; }
    table { font-size: 11px; table-layout: fixed; }
    thead th, tbody td { padding: 0.4rem 0.25rem; white-space: nowrap; overflow: hidden; }
    .actions-cell { overflow: visible !important; }
    thead th:first-child, tbody td:first-child { width: 26%; }
    thead th:nth-child(2), tbody td:nth-child(2) { width: 11%; }
    thead th:nth-child(3), tbody td:nth-child(3) { width: 16%; }
    thead th:nth-child(4), tbody td:nth-child(4) { width: 17%; }
    thead th:nth-child(5), tbody td:nth-child(5) { width: 14%; }
    thead th:last-child, tbody td:last-child { width: 16%; text-align: right; overflow: visible; }
    .hours-input { width: 100%; font-size: 11px; padding: 0.2rem 0.2rem; }
    .table-footer { flex-direction: column; gap: 0.75rem; align-items: flex-start; }
    .modal-panel { margin: 0.5rem; padding: 1.25rem; }
  }

  @media (max-width: 520px) {
    .form-grid { grid-template-columns: 1fr; }
    .stat-grid { grid-template-columns: 1fr; }
    .stat-cell { border-right: none !important; }
    .stat-cell:last-child { border-bottom: none; }
    .page-title { font-size: 1.5rem; }
    .card { padding: 1rem; }
    .actions { flex-direction: column; }
    .actions .btn { width: 100%; text-align: center; }
    thead th, tbody td { padding: 0.35rem 0.2rem; font-size: 10px; }
    .hours-input { font-size: 10px; padding: 0.15rem 0.15rem; }
    .pill { font-size: 8px; padding: 1px 5px; letter-spacing: 0; }
    .actions-menu > summary { width: 20px; height: 18px; font-size: 11px; }
  }

  @media (prefers-reduced-motion: reduce) {
    .fade-up { animation: none; opacity: 1; transform: none; }
    .progress-fill { transition: none; }
  }

  .modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(var(--dot-color), 0.3);
    backdrop-filter: blur(6px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    opacity: 0;
    pointer-events: none;
    transition: opacity 200ms ease;
  }
  .modal-overlay.show { opacity: 1; pointer-events: auto; }
  .modal-panel {
    width: 100%;
    max-width: 24rem;
    margin: 1rem;
    background: var(--bg);
    border: 1px solid var(--gray-200);
    border-radius: 16px;
    padding: 1.75rem;
    box-shadow: 0 40px 90px -20px rgba(0,0,0,0.35);
    transform: scale(0.95);
    opacity: 0;
    transition: transform 200ms cubic-bezier(0.16,1,0.3,1), opacity 200ms ease;
  }
  .modal-overlay.show .modal-panel { transform: scale(1); opacity: 1; }
  .modal-message {
    font-size: 14px;
    color: var(--ink);
    margin: 0 0 1.5rem;
    line-height: 1.5;
  }
  .modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 0.6rem;
  }