:root {
        color-scheme: light dark;
        --blue: #0a84ff;
        --ink: #172033;
        --muted: #667085;
        --line: #d9dde5;
        --panel: #fff;
        --page: #ffffff;
        --top: #d9d9dc;
        --day-heading-bg: #eef2f6;
        --day-heading-text: #344054;
        --day-heading-border: #d6dce5;
        --queens-gold: #fabd0f;
        --queens-gold-text: #212121;
        --modal-overlay: rgba(255, 255, 255, 0.10);
        --modal-transition: rgba(255, 255, 255, 0.42);
        --modal-safe-area: #ffffff;
      }
      * {
        box-sizing: border-box;
        -webkit-tap-highlight-color: transparent;
      }
      html,
      body {
        margin: 0;
        width: 100%;
        min-height: 100%;
        overscroll-behavior: none;
      }
      html.modal-open {
        overflow: hidden;
        background: var(--modal-safe-area);
      }
      html.modal-open body {
        overflow: hidden;
      }
      body {
        min-height: 100vh;
        min-height: 100dvh;
        font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
        background: var(--page);
        color: var(--ink);
      }
      button,
      select,
      a {
        font: inherit;
        touch-action: manipulation;
      }
      button,
      .action-link {
        transition:
          transform 0.12s,
          filter 0.12s,
          background-color 0.12s,
          box-shadow 0.12s;
      }
      button:hover,
      .action-link:hover {
        filter: brightness(0.94);
      }
      button:active,
      .action-link:active {
        transform: scale(0.96);
        filter: brightness(0.84);
      }
      button:focus-visible,
      select:focus-visible,
      a:focus-visible {
        outline: 3px solid rgba(10, 132, 255, 0.38);
        outline-offset: 2px;
      }
      button:disabled {
        opacity: 0.28;
        cursor: not-allowed;
        transform: none;
        filter: none;
      }
      .site-header {
        width: 100%;
        background: var(--top);
        padding: max(8px, env(safe-area-inset-top))
          max(10px, env(safe-area-inset-right)) 8px
          max(10px, env(safe-area-inset-left));
      }
      .header-inner {
        max-width: 1194px;
        margin: auto;
        display: grid;
        grid-template-columns: minmax(0, 1fr) auto;
        align-items: center;
        gap: 8px;
      }
      .brand h1 {
        margin: 0;
        color: #b90e31;
        font-size: clamp(19px, 4.8vw, 34px);
        line-height: 1.05;
        letter-spacing: -0.035em;
        white-space: nowrap;
      }
      .brand p {
        margin: 3px 0 0;
        color: var(--muted);
        font-size: clamp(10px, 2.4vw, 15px);
        white-space: nowrap;
      }
      .brand-home {
        color: inherit;
        font: inherit;
        font-weight: inherit;
        text-decoration: none;
        cursor: pointer;
      }
      .brand-home:visited {
        color: inherit;
      }
      .brand-home:hover,
      .brand-home:active {
        color: inherit;
        text-decoration: none;
        filter: none;
      }
      .header-actions {
        display: flex;
        align-items: center;
        gap: 10px;
      }
      .action-link {
        width: 88px;
        min-height: 38px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        border: 2px solid transparent;
        border-radius: 10px;
        text-decoration: none;
        font-weight: 700;
        font-size: 14px;
        padding: 7px 10px;
      }
      .about {
        color: #fff;
        background: var(--blue);
        border-color: var(--blue);
      }
      main {
        width: 100%;
        max-width: 1194px;
        margin: 0 auto;
        padding: 4px;
      }
      .noscript-message {
        margin: 12px;
        padding: 12px;
        border: 1px solid var(--line);
        border-radius: 8px;
        line-height: 1.5;
      }
      .filters {
        display: grid;
        grid-template-columns: 1fr;
        gap: 4px;
        margin-bottom: 4px;
      }
      .filter-field {
        display: grid;
        grid-template-columns: 70px minmax(0, 1fr);
        align-items: center;
        gap: 5px;
      }
      .filter-field label {
        font-size: 14px;
        font-weight: 700;
      }
      select {
        width: 100%;
        min-height: 38px;
        border: 1px solid var(--line);
        border-radius: 8px;
        background: var(--panel);
        color: inherit;
        padding: 5px 30px 5px 8px;
      }
      .calendar-shell {
        position: relative;
        width: 100%;
        background: var(--panel);
        padding: 4px;
      }
      .schedule-status {
        position: absolute;
        z-index: 20;
        top: 58px;
        left: 50%;
        transform: translateX(-50%);
        display: inline-flex;
        align-items: center;
        gap: 8px;
        max-width: calc(100% - 24px);
        padding: 9px 12px;
        border: 1px solid var(--line);
        border-radius: 999px;
        background: var(--panel);
        color: var(--ink);
        font-size: 13px;
        font-weight: 700;
        box-shadow: 0 8px 24px rgba(0, 0, 0, 0.14);
        pointer-events: none;
      }
      .schedule-status[hidden] {
        display: none;
      }
      .schedule-spinner {
        width: 15px;
        height: 15px;
        border: 2px solid var(--line);
        border-top-color: var(--blue);
        border-radius: 50%;
        animation: schedule-spin 0.7s linear infinite;
        flex: 0 0 auto;
      }
      .schedule-status.is-error .schedule-spinner {
        display: none;
      }
      @keyframes schedule-spin {
        to {
          transform: rotate(360deg);
        }
      }
      .schedule-toast {
        position: fixed;
        left: 50%;
        top: 50%;
        z-index: 100;
        width: min(88vw, 520px);
        padding: 18px 22px;
        transform: translate(-50%, -50%);
        background: rgba(20, 20, 22, 0.88);
        color: #fff;
        border-radius: 16px;
        -webkit-backdrop-filter: blur(16px);
        backdrop-filter: blur(16px);
        box-shadow: 0 16px 48px rgba(0, 0, 0, 0.22);
        font-size: clamp(18px, 4.5vw, 23px);
        line-height: 1.3;
        font-weight: 700;
        text-align: center;
        opacity: 1;
        transition:
          opacity 0.22s ease,
          transform 0.22s ease;
        pointer-events: none;
      }
      .schedule-toast[hidden] {
        display: none;
      }
      .schedule-toast.is-hiding {
        opacity: 0;
        transform: translate(-50%, -46%);
      }
      @media (prefers-color-scheme: light) {
        .schedule-toast {
          background: rgba(255, 255, 255, 0.88);
          color: #172033;
          border: 1px solid rgba(0, 0, 0, 0.08);
        }
      }
      .fc {
        font-size: 13px;
      }
      .fc .fc-toolbar.fc-header-toolbar {
        margin: 0 0 4px;
        gap: 4px;
      }
      .fc .fc-toolbar-title {
        font-size: clamp(16px, 4.6vw, 25px);
        line-height: 1.1;
        text-align: center;
      }
      .fc .fc-button {
        min-width: 34px;
        min-height: 34px;
        padding: 4px 8px;
        border: 0;
        border-radius: 7px;
        background: #30445a;
        box-shadow: none;
      }
      .fc .fc-thisWeek-button,
      .fc .fc-nextWeek-button {
        background: #2563eb;
        opacity: 1;
        font-weight: 700;
        white-space: nowrap;
      }
      .fc .fc-thisWeek-button:disabled,
      .fc .fc-nextWeek-button:disabled {
        background: #98a2b3;
        color: #f8fafc;
        opacity: 0.48;
      }
      .fc-event {
        cursor: pointer;
        border: 0;
      }
      .fc-list {
        border-left: 0 !important;
        border-right: 0 !important;
      }
      .fc-list-day-cushion {
        padding: 5px 7px !important;
        background: var(--day-heading-bg) !important;
        color: var(--day-heading-text) !important;
        border-top: 1px solid var(--day-heading-border);
        border-bottom: 1px solid var(--day-heading-border);
      }
      .fc-list-day-cushion a,
      .fc-list-day-text,
      .fc-list-day-side-text {
        color: var(--day-heading-text) !important;
        font-weight: 700;
        text-decoration: none;
      }
      .fc-list-day.fc-day-today .fc-list-day-cushion {
        background: var(--queens-gold) !important;
        color: var(--queens-gold-text) !important;
        border-color: #d49d00;
      }
      .fc-list-day.fc-day-today .fc-list-day-cushion a,
      .fc-list-day.fc-day-today .fc-list-day-text,
      .fc-list-day.fc-day-today .fc-list-day-side-text {
        color: var(--queens-gold-text) !important;
      }
      .fc .fc-col-header-cell.fc-day-today {
        background: var(--queens-gold) !important;
        border-color: #d49d00 !important;
      }
      .fc .fc-col-header-cell.fc-day-today .fc-col-header-cell-cushion {
        color: var(--queens-gold-text) !important;
        font-weight: 800;
      }
      .fc-list-event td {
        padding: 6px 5px !important;
      }
      .fc-list-event:hover td,
      .fc-list-event:active td {
        background: #b90e31 !important;
        color: #fff !important;
      }
      .fc-list-event:hover a,
      .fc-list-event:active a,
      .fc-list-event:hover .event-location,
      .fc-list-event:active .event-location {
        color: #fff !important;
      }
      .event-title {
        font-weight: 750;
        line-height: 1.2;
      }
      .event-location {
        margin-top: 2px;
        color: #2563eb;
        font-size: 11px;
      }
      .modal {
        position: fixed;
        inset: 0;
        z-index: 50;
        display: grid;
        place-items: center;
        overflow: hidden;
        padding: max(12px, env(safe-area-inset-top))
          max(12px, env(safe-area-inset-right))
          max(12px, env(safe-area-inset-bottom))
          max(12px, env(safe-area-inset-left));
      }
      .modal[hidden] {
        display: none;
      }
      .modal-backdrop {
        position: absolute;
        inset: 0;
        background: linear-gradient(
          to bottom,
          var(--modal-overlay) 0%,
          var(--modal-overlay)
            calc(100% - env(safe-area-inset-bottom) - 96px),

          var(--modal-transition)
            calc(100% - env(safe-area-inset-bottom) - 48px),

          var(--modal-safe-area)
            calc(100% - env(safe-area-inset-bottom)),

          var(--modal-safe-area) 100%
        );
        -webkit-backdrop-filter: blur(3px);
        backdrop-filter: blur(3px);
      }
      .modal-card {
        position: relative;
        width: min(92vw, 520px);
        max-height: min(82dvh, 620px);
        overflow: hidden;
        background: var(--panel);
        border: 1px solid var(--line);
        border-radius: 18px;
        box-shadow: 0 24px 70px rgba(0, 0, 0, 0.28);
        padding: 18px;
      }
      .modal-card h2 {
        margin: 0 0 14px;
        font-size: 23px;
        line-height: 1.15;
      }
      .detail {
        display: grid;
        grid-template-columns: 32px 1fr;
        gap: 10px;
        margin: 10px 0;
        align-items: start;
      }
      .detail-icon {
        display: grid;
        place-items: center;
        width: 32px;
        height: 32px;
        border-radius: 9px;
        background: #e8f2ff;
        color: #076bd3;
      }
      .detail small {
        display: block;
        color: var(--muted);
        font-weight: 700;
        text-transform: uppercase;
        letter-spacing: 0.04em;
      }
      .detail p {
        margin: 2px 0 0;
        line-height: 1.35;
      }
      .description {
        margin: 12px 0;
        padding: 10px;
        max-height: min(28dvh, 210px);
        overflow-x: hidden;
        overflow-y: auto;
        overscroll-behavior: contain;
        -webkit-overflow-scrolling: touch;
        border-radius: 10px;
        background: var(--page);
        white-space: pre-wrap;
        overflow-wrap: anywhere;
      }
      .add-button {
        width: 100%;
        min-height: 50px;
        margin-top: 15px;
        border: 0;
        border-radius: 12px;
        background: #087df0;
        color: #fff;
        font-size: 18px;
        font-weight: 800;
      }
      @media (orientation: portrait) {
        .calendar-shell {
          margin-left: -4px;
          width: calc(100% + 8px);
        }
        .fc .fc-toolbar {
          flex-wrap: nowrap;
        }
        .fc .fc-toolbar-chunk {
          display: flex;
          align-items: center;
        }
        .fc .fc-toolbar-chunk:nth-child(2) {
          min-width: 0;
        }
        .fc .fc-toolbar-title {
          white-space: normal;
        }
      }
      @media (orientation: landscape) and (min-width: 700px) {
        html,
        body {
          height: 100%;
          overflow: hidden;
        }
        body {
          display: flex;
          flex-direction: column;
        }
        .site-header {
          flex: 0 0 auto;
          padding-top: max(6px, env(safe-area-inset-top));
          padding-bottom: 6px;
        }
        .brand h1 {
          font-size: 26px;
        }
        .brand p {
          font-size: 13px;
        }
        main {
          min-height: 0;
          flex: 1;
          display: flex;
          flex-direction: column;
          padding: 3px 5px 5px;
        }
        .filters {
          grid-template-columns: 1fr 1fr;
          flex: 0 0 auto;
        }
        .filter-field {
          grid-template-columns: 64px minmax(0, 1fr);
        }
        .calendar-shell {
          min-height: 0;
          flex: 1;
          overflow: hidden;
        }
        #calendar,
        .fc {
          height: 100%;
        }
        .fc .fc-toolbar-title {
          font-size: 20px;
        }
        .fc .fc-timegrid-slot {
          height: 1.25em;
        }
        .fc .fc-col-header-cell-cushion {
          padding: 2px 4px;
        }
      }
      @media (prefers-color-scheme: dark) {
        :root {
          --ink: #f1f3f7;
          --muted: #aeb5c2;
          --line: #3b4250;
          --panel: #1e1f22;
          --page: #111214;
          --top: #303135;

          --day-heading-bg: #2a2e35;
          --day-heading-text: #e6eaf0;
          --day-heading-border: #444b57;

          --modal-overlay: rgba(8, 15, 28, 0.56);
          --modal-transition: rgba(17, 18, 20, 0.82);
          --modal-safe-area: #111214;
        }
      }