:root {
        color-scheme: light;
        --bg: #f4f4f2;
        --bg-soft: #faf9f7;
        --ink: #121212;
        --muted: #6c6c70;
        --line: rgba(18, 18, 18, 0.1);
        --line-strong: rgba(18, 18, 18, 0.18);
        --paper: #fffefa;
        --paper-shadow: rgba(15, 15, 15, 0.12);
        --accent: #101010;
        --accent-soft: rgba(16, 16, 16, 0.06);
        --sheet: rgba(255, 255, 255, 0.84);
        --sheet-blur: 22px;
        --radius-xl: 42px;
        --radius-lg: 28px;
        --radius-md: 20px;
        --radius-sm: 14px;
      }

      * {
        box-sizing: border-box;
      }

      html,
      body {
        margin: 0;
        min-height: 100%;
      }

      body {
        font-family: "IBM Plex Mono", monospace;
        color: var(--ink);
        background:
          radial-gradient(circle at top, rgba(255, 255, 255, 0.95), transparent 28%),
          radial-gradient(circle at bottom right, rgba(255, 214, 160, 0.16), transparent 22%),
          linear-gradient(180deg, #f8f8f6 0%, #efefec 100%);
      }

      button,
      input,
      textarea {
        font: inherit;
      }

      button {
        border: 0;
        cursor: pointer;
      }

      .receipt-page {
        width: min(1200px, 100%);
        margin: 0 auto;
        padding: 24px 20px 72px;
      }

      .receipt-nav {
        display: flex;
        justify-content: space-between;
        align-items: center;
        gap: 16px;
        margin-bottom: 28px;
      }

      .receipt-nav-back,
      .receipt-nav-status {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        padding: 12px 16px;
        border-radius: 999px;
        color: var(--ink);
        text-decoration: none;
        background: rgba(255, 255, 255, 0.72);
        box-shadow: 0 12px 32px rgba(17, 17, 17, 0.06);
        backdrop-filter: blur(18px);
      }

      .receipt-nav-status {
        color: var(--muted);
      }

      .receipt-layout {
        display: grid;
        grid-template-columns: minmax(340px, 520px) minmax(300px, 1fr);
        gap: 28px;
        align-items: start;
      }

      .stage-shell {
        position: sticky;
        top: 20px;
        padding: 18px;
        border-radius: 44px;
        background: transparent;
        box-shadow: none;
        backdrop-filter: none;
      }

      .phone {
        position: relative;
        width: min(100%, 410px);
        margin: 0 auto;
        min-height: 820px;
        border-radius: 54px;
        background: transparent;
        box-shadow:
          0 0 0 8px #080808,
          0 22px 80px rgba(15, 15, 15, 0.18);
        overflow: hidden;
      }

      .phone::before {
        content: "";
        position: absolute;
        top: 16px;
        left: 50%;
        width: 150px;
        height: 34px;
        margin-left: -75px;
        border-radius: 999px;
        background: #101010;
        z-index: 7;
      }

      .phone::after {
        content: "";
        position: absolute;
        left: 50%;
        bottom: 9px;
        width: 130px;
        height: 5px;
        margin-left: -65px;
        border-radius: 999px;
        background: rgba(17, 17, 17, 0.9);
        z-index: 7;
      }

      .phone-chrome {
        position: absolute;
        top: 18px;
        left: 0;
        right: 0;
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 0 28px;
        font-size: 15px;
        font-weight: 600;
        z-index: 7;
      }

      .status-icons {
        display: inline-flex;
        gap: 7px;
        align-items: center;
      }

      .status-pill,
      .status-bar,
      .status-battery {
        display: inline-block;
        border-radius: 999px;
        background: #111;
      }

      .status-pill {
        width: 5px;
        height: 5px;
      }

      .status-bar {
        width: 17px;
        height: 10px;
      }

      .status-battery {
        width: 22px;
        height: 10px;
      }

      .phone-screen {
        position: relative;
        height: 100%;
        min-height: 820px;
        padding: 70px 14px 72px;
      }

      .screen-stage {
        position: relative;
        height: 100%;
        min-height: 678px;
        border-radius: 36px;
        background: transparent;
        overflow: hidden;
      }

      .printer {
        position: absolute;
        top: 18px;
        left: 16px;
        right: 16px;
        z-index: 5;
      }

      .printer-top {
        position: relative;
        height: 24px;
        border-radius: 999px;
        background: linear-gradient(180deg, #3d3d40 0%, #1f1f22 100%);
        box-shadow: inset 0 2px 2px rgba(255, 255, 255, 0.12);
      }

      .printer-top::after {
        content: "";
        position: absolute;
        top: 7px;
        left: 22px;
        right: 22px;
        height: 4px;
        border-radius: 999px;
        background: rgba(255, 255, 255, 0.14);
      }

      .printer-mouth {
        position: relative;
        width: calc(100% - 28px);
        height: 20px;
        margin: -4px auto 0;
        border-radius: 0 0 12px 12px;
        background: linear-gradient(180deg, rgba(20, 20, 20, 0.6), rgba(30, 30, 30, 0));
      }

      .receipt-window {
        position: relative;
        width: calc(100% - 34px);
        height: 600px;
        margin: 16px auto 0;
        overflow: hidden;
      }

      .receipt-roll {
        position: absolute;
        top: -18px;
        left: 50%;
        width: 86%;
        height: 94px;
        margin-left: -43%;
        border-radius: 0 0 18px 18px;
        background: linear-gradient(180deg, #ffffff 0%, #f1f1ef 100%);
        box-shadow:
          0 8px 18px rgba(15, 15, 15, 0.08),
          inset 0 -1px 0 rgba(17, 17, 17, 0.08);
        transform-origin: top center;
        transition: opacity 320ms ease;
      }

      .receipt-paper {
        position: absolute;
        top: 10px;
        left: 50%;
        width: 86%;
        margin-left: -43%;
        height: 0;
        background: linear-gradient(180deg, #fffffd 0%, #f7f5ef 100%);
        border-radius: 0 0 24px 24px;
        box-shadow: 0 10px 22px rgba(15, 15, 15, 0.07);
        overflow: hidden;
        transition: height 2200ms cubic-bezier(0.22, 1, 0.36, 1);
      }

      .receipt-paper::before {
        content: "";
        position: absolute;
        inset: 0;
        background-image:
          linear-gradient(to bottom, rgba(17, 17, 17, 0.024) 1px, transparent 1px),
          linear-gradient(90deg, rgba(17, 17, 17, 0.02) 1px, transparent 1px);
        background-size: 100% 24px, 16.6% 100%;
        pointer-events: none;
      }

      .receipt-scroll {
        position: absolute;
        inset: 0;
        padding: 28px 18px 170px;
        overflow-y: auto;
        scrollbar-width: none;
        opacity: 0;
        transform: translateY(-26px);
        transition:
          opacity 420ms ease 520ms,
          transform 420ms ease 520ms;
      }

      .receipt-scroll::-webkit-scrollbar {
        display: none;
      }

      body.is-printed .receipt-paper {
        height: 560px;
      }

      body.is-printed .receipt-scroll {
        opacity: 1;
        transform: translateY(0);
      }

      body.is-printed .receipt-roll {
        opacity: 0.15;
      }

      .receipt-content {
        position: relative;
        z-index: 1;
      }

      .receipt-meta {
        display: grid;
        gap: 10px;
        padding-bottom: 16px;
        border-bottom: 1px dashed var(--line-strong);
        font-size: 12px;
        color: var(--muted);
      }

      .receipt-brand {
        margin-bottom: 18px;
        text-align: center;
      }

      .receipt-brand-mark {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 54px;
        height: 54px;
        margin-bottom: 12px;
        border-radius: 16px;
        background: rgba(17, 17, 17, 0.04);
        box-shadow:
          0 6px 18px rgba(15, 15, 15, 0.08),
          inset 0 0 0 1px rgba(17, 17, 17, 0.06);
        font-size: 20px;
      }

      .receipt-brand h1 {
        margin: 0;
        font-size: 34px;
        letter-spacing: -0.04em;
        font-weight: 600;
      }

      .receipt-brand p {
        margin: 8px 0 0;
        font-size: 12px;
        color: var(--muted);
      }

      .receipt-table {
        width: 100%;
        border-collapse: collapse;
        margin-top: 18px;
        font-size: 12px;
      }

      .receipt-table th,
      .receipt-table td {
        padding: 9px 0;
        border-bottom: 1px dashed rgba(17, 17, 17, 0.11);
        text-align: left;
        vertical-align: top;
      }

      .receipt-table th:last-child,
      .receipt-table td:last-child {
        text-align: right;
      }

      .receipt-table th {
        font-size: 11px;
        font-weight: 600;
        color: var(--muted);
      }

      .receipt-table input {
        width: 100%;
        padding: 8px 10px;
        border: 1px solid transparent;
        border-radius: 10px;
        background: transparent;
        color: var(--ink);
        font: inherit;
      }

      body.is-editing .receipt-table input {
        background: rgba(17, 17, 17, 0.03);
        border-color: rgba(17, 17, 17, 0.08);
      }

      .qty-input {
        max-width: 44px;
      }

      .price-input {
        max-width: 72px;
        text-align: right;
      }

      .line-action {
        display: none;
        width: 28px;
        height: 28px;
        margin-left: 8px;
        border-radius: 999px;
        background: rgba(17, 17, 17, 0.05);
        color: var(--ink);
      }

      body.is-editing .line-action,
      body.is-editing .item-row-edit .line-action {
        display: inline-flex;
        align-items: center;
        justify-content: center;
      }

      .receipt-total {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-top: 18px;
        padding-top: 18px;
        border-top: 1px solid rgba(17, 17, 17, 0.14);
        font-size: 13px;
      }

      .receipt-total strong {
        font-size: 26px;
        letter-spacing: -0.04em;
      }

      .qr-section {
        margin-top: 20px;
        padding-top: 20px;
        border-top: 1px dashed var(--line-strong);
      }

      .qr-card {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 12px;
        padding: 14px;
        border-radius: 18px;
        background: rgba(17, 17, 17, 0.03);
      }

      .qr-image {
        width: 140px;
        height: 140px;
        border-radius: 18px;
        background: #fff;
        object-fit: cover;
        box-shadow: inset 0 0 0 1px rgba(17, 17, 17, 0.08);
      }

      .qr-copy {
        margin: 0;
        font-size: 11px;
        color: var(--muted);
        text-align: center;
      }

      .bottom-sheet {
        position: absolute;
        left: 0;
        right: 0;
        bottom: 0;
        z-index: 6;
        padding: 12px 18px 28px;
        border-radius: 32px 32px 0 0;
        background: rgba(255, 255, 255, 0.92);
        box-shadow:
          0 -18px 46px rgba(15, 15, 15, 0.14),
          inset 0 1px 0 rgba(255, 255, 255, 0.82);
        backdrop-filter: blur(26px);
        transform: translateY(calc(100% - 36px));
        opacity: 0;
        transition:
          transform 520ms cubic-bezier(0.2, 0.92, 0.2, 1),
          opacity 240ms ease;
      }

      body.sheet-available .bottom-sheet {
        opacity: 1;
      }

      body.show-sheet .bottom-sheet {
        transform: translateY(0);
        opacity: 1;
      }

      .bottom-sheet-handle {
        display: block;
        width: 42px;
        height: 5px;
        padding: 0;
        border: 0;
        margin: 0 auto 16px;
        border-radius: 999px;
        background: rgba(17, 17, 17, 0.18);
      }

      .bottom-sheet h2 {
        margin: 0;
        font-size: 24px;
        letter-spacing: -0.04em;
      }

      .bottom-sheet p {
        margin: 8px 0 0;
        font-size: 12px;
        line-height: 1.5;
        color: var(--muted);
      }

      .sheet-actions {
        display: flex;
        gap: 10px;
        margin-top: 16px;
      }

      .primary-btn,
      .secondary-btn,
      .ghost-btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        min-height: 48px;
        padding: 12px 18px;
        border-radius: 999px;
        font-size: 13px;
        transition: transform 180ms ease, background 180ms ease, opacity 180ms ease;
      }

      .primary-btn:hover,
      .secondary-btn:hover,
      .ghost-btn:hover {
        transform: translateY(-1px);
      }

      .primary-btn {
        background: #111;
        color: #fff;
      }

      .secondary-btn {
        background: rgba(17, 17, 17, 0.08);
        color: #111;
      }

      .ghost-btn {
        background: transparent;
        color: var(--muted);
      }

      .control-panel {
        display: grid;
        gap: 18px;
      }

      .panel-card {
        padding: 22px;
        border-radius: 30px;
        background: rgba(255, 255, 255, 0.72);
        box-shadow:
          0 20px 60px rgba(15, 15, 15, 0.08),
          inset 0 0 0 1px rgba(255, 255, 255, 0.8);
        backdrop-filter: blur(20px);
      }

      .panel-card h2,
      .panel-card h3 {
        margin: 0;
        font-size: 22px;
        letter-spacing: -0.04em;
      }

      .panel-card p {
        margin: 10px 0 0;
        color: var(--muted);
        font-size: 13px;
        line-height: 1.6;
      }

      .eyebrow {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        margin-bottom: 12px;
        font-size: 11px;
        text-transform: uppercase;
        letter-spacing: 0.22em;
        color: var(--muted);
      }

      .hero-title {
        max-width: 14ch;
        font-size: clamp(40px, 7vw, 78px);
        line-height: 0.94;
      }

      .hero-actions,
      .share-actions,
      .edit-actions {
        display: flex;
        flex-wrap: wrap;
        gap: 12px;
        margin-top: 18px;
      }

      .field-grid {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 14px;
        margin-top: 18px;
      }

      .field {
        display: grid;
        gap: 8px;
      }

      .field.full {
        grid-column: 1 / -1;
      }

      .field label,
      .toggle-row span {
        font-size: 11px;
        font-weight: 600;
        text-transform: uppercase;
        letter-spacing: 0.18em;
        color: var(--muted);
      }

      .field input {
        width: 100%;
        min-height: 44px;
        padding: 10px 14px;
        border: 1px solid rgba(17, 17, 17, 0.08);
        border-radius: 14px;
        background: rgba(255, 255, 255, 0.74);
      }

      .toggle-row {
        display: flex;
        justify-content: space-between;
        align-items: center;
        gap: 16px;
        margin-top: 20px;
        padding-top: 18px;
        border-top: 1px solid rgba(17, 17, 17, 0.08);
      }

      .switch {
        position: relative;
        display: inline-flex;
        width: 52px;
        height: 32px;
      }

      .switch input {
        opacity: 0;
        width: 0;
        height: 0;
      }

      .switch-slider {
        position: absolute;
        inset: 0;
        border-radius: 999px;
        background: rgba(17, 17, 17, 0.12);
        transition: background 180ms ease;
      }

      .switch-slider::after {
        content: "";
        position: absolute;
        top: 4px;
        left: 4px;
        width: 24px;
        height: 24px;
        border-radius: 50%;
        background: #fff;
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.12);
        transition: transform 180ms ease;
      }

      .switch input:checked + .switch-slider {
        background: #111;
      }

      .switch input:checked + .switch-slider::after {
        transform: translateX(20px);
      }

      .inline-note {
        margin-top: 14px;
        padding: 14px 16px;
        border-radius: 18px;
        background: rgba(17, 17, 17, 0.04);
        color: var(--muted);
        font-size: 12px;
        line-height: 1.5;
      }

      .share-link-box {
        display: flex;
        gap: 10px;
        margin-top: 18px;
      }

      .share-link-box input {
        flex: 1;
        min-height: 46px;
        padding: 10px 14px;
        border: 1px solid rgba(17, 17, 17, 0.08);
        border-radius: 14px;
        background: rgba(255, 255, 255, 0.78);
      }

      .share-link-box button {
        min-width: 112px;
      }

      .status-chip-row {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        margin-top: 18px;
      }

      .status-chip {
        padding: 10px 12px;
        border-radius: 999px;
        background: rgba(17, 17, 17, 0.05);
        color: var(--muted);
        font-size: 11px;
      }

      .item-row-edit {
        display: flex;
        align-items: center;
        gap: 8px;
      }

      .hidden {
        display: none !important;
      }

      .receipt-footer-space {
        height: 8px;
      }

      @media (max-width: 980px) {
        .receipt-layout {
          grid-template-columns: 1fr;
        }

        .stage-shell {
          position: static;
        }

        .control-panel {
          order: -1;
        }
      }

      @media (max-width: 620px) {
        .receipt-page {
          padding: 16px 14px 44px;
        }

        .receipt-nav {
          flex-direction: column;
          align-items: stretch;
        }

        .field-grid {
          grid-template-columns: 1fr;
        }

        .phone {
          min-height: 760px;
          border-radius: 44px;
        }

        .phone-screen,
        .screen-stage {
          min-height: 620px;
        }

        .receipt-window {
          height: 532px;
        }

        body.is-printed .receipt-paper {
          height: 510px;
        }
      }