:root {
      --bg: #0f1115;
      --panel: #171a21;
      --panel-2: #1d212b;
      --panel-3: #11151b;
      --border: #2a3040;
      --text: #e7ebf3;
      --muted: #a5adbd;
      --soft: #7e8798;
      --accent: #89a8ff;
      --green: #7bd389;
      --red: #f08a8a;
      --yellow: #f5c86b;
      --shadow: 0 10px 30px rgba(0,0,0,0.28);
      --radius: 18px;
      --gap: 16px;
      --header-h: 64px;
    }

    * { box-sizing: border-box; }
    html, body { height: 100%; }
    body {
      margin: 0;
      font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
      background: #0b0d12;
      color: var(--text);
      overflow: auto;
      min-height: 100vh;
    }

    html {
      height: 100%;
    }

    .app {
      min-height: 100vh;
      display: grid;
      grid-template-rows: var(--header-h) 1fr;
      padding: 18px;
      gap: var(--gap);
    }

    .topbar {
      background: rgba(23, 26, 33, 0.95);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      box-shadow: var(--shadow);
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 0 18px;
      gap: 16px;
    }

    .title-wrap {
      display: flex;
      flex-direction: column;
      gap: 2px;
    }

    .title-wrap strong { font-size: 1rem; }
    .top-date { color: var(--muted); font-size: 0.86rem; }

    .view-toggle {
      display: flex;
      gap: 8px;
      align-items: center;
      flex-wrap: wrap;
    }

    .toggle-btn,
    .filter-select,
    .small-btn,
    .form-row input,
    .form-row select,
    .form-row textarea {
      border: 1px solid var(--border);
      background: var(--panel-2);
      color: var(--text);
      border-radius: 10px;
      font: inherit;
    }

    .toggle-btn,
    .small-btn,
    .filter-select {
      padding: 8px 12px;
      cursor: pointer;
    }

    .toggle-btn.active {
      border-color: rgba(137,168,255,0.85);
      box-shadow: 0 0 0 1px rgba(137,168,255,0.25) inset;
    }

    .layout {
      display: grid;
      grid-template-columns: 0.95fr 1.55fr;
      gap: var(--gap);
      min-height: 0;
      height: 100%;
    }

    .left-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      grid-template-rows: repeat(3, minmax(0, 1fr));
      gap: var(--gap);
      min-height: 0;
      height: 100%;
    }

    .panel {
      background: rgba(23, 26, 33, 0.94);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      box-shadow: var(--shadow);
      display: flex;
      flex-direction: column;
      overflow: hidden;
      min-height: 0;
      height: 100%;
    }

    .panel-header {
      padding: 14px 14px 12px;
      border-bottom: 1px solid rgba(42,48,64,0.9);
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 8px;
      font-weight: 700;
    }

    .panel-count {
      font-size: 0.78rem;
      color: var(--muted);
      font-weight: 500;
    }

    .panel-body {
      padding: 10px;
      overflow-y: auto;
      overflow-x: hidden;
      min-height: 0;
      height: 100%;
    }

    .panel-body::-webkit-scrollbar {
      width: 10px;
    }

    .panel-body::-webkit-scrollbar-track {
      background: rgba(255,255,255,0.03);
      border-radius: 999px;
    }

    .panel-body::-webkit-scrollbar-thumb {
      background: rgba(137,168,255,0.22);
      border-radius: 999px;
      border: 2px solid transparent;
      background-clip: padding-box;
    }

    .date-group { margin-bottom: 14px; }
    .date-group-label {
      color: var(--muted);
      font-size: 0.74rem;
      text-transform: uppercase;
      letter-spacing: 0.09em;
      padding: 4px 2px 8px;
    }

    .item {
      display: grid;
      grid-template-columns: auto 1fr auto;
      gap: 10px;
      background: var(--panel-2);
      border: 1px solid rgba(57,66,86,0.95);
      border-radius: 14px;
      padding: 10px;
      margin-bottom: 10px;
      align-items: start;
      transition: 140ms ease;
    }

    .item:hover {
      transform: translateY(-1px);
      border-color: rgba(137,168,255,0.4);
    }

    .item.past-today {
      opacity: 0.55;
      filter: grayscale(0.18);
    }

    .date-badge {
      width: 46px;
      min-width: 46px;
      text-align: center;
      border: 1px solid var(--border);
      border-radius: 10px;
      background: rgba(15,17,21,0.55);
      padding: 6px 4px;
    }

    .date-day {
      font-size: 1.15rem;
      font-weight: 750;
      line-height: 1;
    }

    .date-month {
      font-size: 0.64rem;
      color: var(--muted);
      text-transform: uppercase;
      letter-spacing: 0.08em;
      margin-top: 3px;
    }

    .item-title {
      font-size: 0.95rem;
      line-height: 1.28;
      font-weight: 640;
      margin-bottom: 2px;
    }

    .item-meta,
    .item-submeta {
      font-size: 0.8rem;
      color: var(--muted);
      line-height: 1.3;
    }

    .item-submeta { margin-top: 4px; }

    .item-notes {
      font-size: 0.79rem;
      color: var(--muted);
      margin-top: 5px;
      line-height: 1.35;
    }

    .check {
      appearance: none;
      width: 18px;
      height: 18px;
      border: 1px solid rgba(167,176,193,0.7);
      border-radius: 5px;
      background: #11151b;
      cursor: pointer;
      margin-top: 2px;
      position: relative;
    }

    .check:checked {
      background: rgba(123,211,137,0.18);
      border-color: rgba(123,211,137,0.95);
    }

    .check:checked::after {
      content: "";
      position: absolute;
      width: 4px;
      height: 8px;
      border-right: 2px solid var(--green);
      border-bottom: 2px solid var(--green);
      transform: rotate(40deg);
      left: 6px;
      top: 2px;
    }

    .close-btn,
    .delete-btn {
      cursor: pointer;
      font-size: 0.92rem;
      color: var(--muted);
      border: 1px solid var(--border);
      border-radius: 7px;
      padding: 2px 7px 3px;
      line-height: 1;
      user-select: none;
      background: rgba(0,0,0,0.12);
    }

    .close-btn:hover,
    .delete-btn:hover {
      color: var(--red);
      border-color: rgba(240,138,138,0.85);
    }

    .empty {
      color: var(--soft);
      font-size: 0.88rem;
      padding: 4px 2px;
    }

    .archive-tools {
      display: flex;
      align-items: center;
      gap: 8px;
      flex-wrap: wrap;
    }

    .add-shell {
      display: grid;
      grid-template-columns: 1.05fr 0.95fr;
      gap: var(--gap);
      min-height: 0;
    }

    .add-panel {
      min-height: 0;
    }

    .form-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
    }

    .form-row {
      display: flex;
      flex-direction: column;
      gap: 6px;
      margin-bottom: 12px;
    }

    .form-row.full {
      grid-column: 1 / span 2;
    }

    .form-row label {
      font-size: 0.8rem;
      color: var(--muted);
    }

    .form-row input,
    .form-row select,
    .form-row textarea {
      width: 100%;
      padding: 10px 12px;
      outline: none;
    }

    .form-row textarea {
      min-height: 96px;
      resize: vertical;
    }

    .inline-check {
      display: flex;
      align-items: center;
      gap: 10px;
      padding-top: 6px;
    }

    .submit-btn {
      background: rgba(137,168,255,0.14);
      border: 1px solid rgba(137,168,255,0.4);
      color: var(--text);
      padding: 10px 14px;
      border-radius: 12px;
      cursor: pointer;
      font: inherit;
      font-weight: 600;
    }

    .mini-list .item {
      grid-template-columns: auto 1fr;
    }

    .status-pill {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      border: 1px solid var(--border);
      border-radius: 999px;
      padding: 4px 8px;
      font-size: 0.72rem;
      color: var(--muted);
      margin-top: 5px;
      width: fit-content;
    }

    @media (max-width: 1100px) {
      body { overflow: auto; }
      .app { height: auto; min-height: 100vh; }
      .layout, .add-shell { grid-template-columns: 1fr; height: auto; }
      .left-grid { grid-template-columns: 1fr; grid-template-rows: none; height: auto; }
      .panel { min-height: 260px; height: auto; }
      .form-grid { grid-template-columns: 1fr; }
      .form-row.full { grid-column: auto; }
      .panel-body { height: auto; max-height: 46vh; }
    }

    .edit-btn {
  font-size: 14px;
  opacity: 0.5;
  cursor: pointer;
  transition: opacity 0.15s ease, transform 0.1s ease;
}

.edit-btn:hover {
  opacity: 1;
  transform: scale(1.1);
}