:root {
      --bg: #f4f7fb;
      --surface: #ffffff;
      --line: #e5ebf3;
      --text: #172033;
      --muted: #70809a;
      --primary: #1f6feb;
      --primary-soft: rgba(31, 111, 235, 0.10);
      --success: #12b76a;
      --success-soft: rgba(18, 183, 106, 0.12);
      --warning: #f79009;
      --warning-soft: rgba(247, 144, 9, 0.12);
      --danger: #f04438;
      --danger-soft: rgba(240, 68, 56, 0.12);
      --purple: #7a5af8;
      --shadow: 0 10px 30px rgba(12, 28, 63, 0.08);
      --radius: 20px;
      --sidebar-width: 280px;
    }

    * {
      box-sizing: border-box;
    }

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

    body {
      margin: 0;
      font-family: 'Inter', sans-serif;
      background: var(--bg);
      color: var(--text);
    }

    a {
      text-decoration: none;
      color: inherit;
    }

    button {
      font: inherit;
    }

    .layout {
      min-height: 100vh;
      display: flex;
    }

    .sidebar {
      width: var(--sidebar-width);
      background: linear-gradient(180deg, #0d1b3d 0%, #132c62 50%, #103d58 100%);
      color: #fff;
      padding: 24px 18px;
      position: fixed;
      top: 0;
      bottom: 0;
      left: 0;
      overflow-y: auto;
      z-index: 100;
    }

    .brand {
      display: flex;
      align-items: center;
      gap: 14px;
      padding: 6px 10px 22px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.12);
      margin-bottom: 22px;
    }

    .brand-logo {
      width: 46px;
      height: 46px;
      border-radius: 14px;
      display: grid;
      place-items: center;
      background: linear-gradient(135deg, #21c97a, #2f80ed);
      font-size: 1.35rem;
      box-shadow: 0 12px 30px rgba(47, 128, 237, 0.35);
    }

    .brand h4 {
      margin: 0;
      font-size: 1rem;
      font-weight: 800;
    }

    .brand span {
      color: rgba(255, 255, 255, 0.72);
      font-size: 0.83rem;
    }

    .menu-title {
      padding: 0 10px;
      margin: 22px 0 10px;
      font-size: 0.74rem;
      font-weight: 700;
      letter-spacing: 0.12em;
      color: rgba(255, 255, 255, 0.52);
      text-transform: uppercase;
    }

    .nav-link {
      color: rgba(255, 255, 255, 0.84);
      border-radius: 16px;
      padding: 12px 14px;
      display: flex;
      align-items: center;
      gap: 12px;
      font-weight: 600;
      margin-bottom: 6px;
      transition: 0.25s ease;
    }

    .nav-link:hover,
    .nav-link.active {
      background: rgba(255, 255, 255, 0.14);
      color: #fff;
      transform: translateX(2px);
    }

    .sidebar-card {
      margin-top: 24px;
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(255, 255, 255, 0.10);
      border-radius: 20px;
      padding: 18px;
    }

    .sidebar-card h6 {
      margin: 0 0 10px;
      font-size: 0.95rem;
      font-weight: 700;
    }

    .sidebar-card p {
      font-size: 0.86rem;
      color: rgba(255, 255, 255, 0.74);
      line-height: 1.6;
      margin-bottom: 14px;
    }

    .sidebar-card .btn-white {
      width: 100%;
      border: 0;
      border-radius: 16px;
      padding: 12px 14px;
      font-weight: 700;
      background: #fff;
      color: #142347;
      cursor: pointer;
    }

    .main {
      margin-left: var(--sidebar-width);
      width: calc(100% - var(--sidebar-width));
      padding: 24px;
    }

    .topbar {
      background: rgba(255, 255, 255, 0.88);
      backdrop-filter: blur(14px);
      border: 1px solid rgba(229, 235, 243, 0.9);
      border-radius: 24px;
      padding: 16px 20px;
      box-shadow: var(--shadow);
      margin-bottom: 22px;
      display: grid;
      grid-template-columns: minmax(280px, 1.2fr) minmax(220px, 0.9fr) auto;
      gap: 16px;
      align-items: center;
    }

    .page-title h2 {
      margin: 0;
      font-size: 1.7rem;
      font-weight: 800;
    }

    .page-title p {
      margin: 6px 0 0;
      color: var(--muted);
      font-size: 0.95rem;
    }

    .search-box {
      position: relative;
    }

    .search-box i {
      position: absolute;
      left: 16px;
      top: 50%;
      transform: translateY(-50%);
      color: #8c9ab0;
      pointer-events: none;
    }

    .search-box input {
      width: 100%;
      padding: 12px 14px 12px 42px;
      border-radius: 14px;
      border: 1px solid var(--line);
      background: #f8fbff;
      outline: none;
    }

    .actions {
      display: flex;
      justify-content: flex-end;
      gap: 10px;
      flex-wrap: wrap;
    }

    .icon-btn {
      width: 46px;
      height: 46px;
      border-radius: 14px;
      border: 1px solid var(--line);
      background: #fff;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: var(--text);
      position: relative;
      padding: 0;
      cursor: pointer;
    }

    .notif-dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: var(--danger);
      position: absolute;
      right: 10px;
      top: 10px;
      border: 2px solid #fff;
    }

    .profile-pill {
      display: flex;
      align-items: center;
      gap: 12px;
      background: #fff;
      border: 1px solid var(--line);
      border-radius: 16px;
      padding: 8px 12px;
    }

    .profile-avatar {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: linear-gradient(135deg, #1f6feb, #21c97a);
      color: #fff;
      display: grid;
      place-items: center;
      font-weight: 700;
      flex-shrink: 0;
    }

    .grid-4,
    .grid-2,
    .grid-main {
      display: grid;
      gap: 18px;
      margin-bottom: 18px;
    }

    .grid-4 {
      grid-template-columns: repeat(4, 1fr);
    }

    .grid-2 {
      grid-template-columns: 1.25fr 0.75fr;
    }

    .grid-main {
      grid-template-columns: 1.2fr 0.8fr;
    }

    .dash-card {
      background: var(--surface);
      border-radius: var(--radius);
      border: 1px solid var(--line);
      box-shadow: var(--shadow);
      padding: 20px;
      height: 100%;
    }

    .metric-card {
      position: relative;
      overflow: hidden;
      color: #fff;
      border: none;
    }

    .metric-card::after {
      content: "";
      position: absolute;
      width: 120px;
      height: 120px;
      border-radius: 50%;
      right: -35px;
      top: -35px;
      background: rgba(255, 255, 255, 0.22);
    }

    .metric-card.primary {
      background: linear-gradient(135deg, #cb4444, #4c8df5);
    }

    .metric-card.success {
      background: linear-gradient(135deg, #12b76a, #2fd184);
    }

    .metric-card.warning {
      background: linear-gradient(135deg, #f79009, #ffad33);
    }

    .metric-card.purple {
      background: linear-gradient(135deg, #2979ef, #9b7bff);
    }

    .metric-top {
      display: flex;
      justify-content: space-between;
      align-items: flex-start;
      position: relative;
      z-index: 1;
      gap: 12px;
    }

    .metric-label {
      font-size: 0.92rem;
      opacity: 0.96;
      margin-bottom: 10px;
    }

    .metric-value {
      font-size: 2rem;
      font-weight: 800;
      line-height: 1;
      margin-bottom: 10px;
    }

    .metric-foot {
      position: relative;
      z-index: 1;
      display: flex;
      justify-content: space-between;
      gap: 10px;
      font-size: 0.88rem;
      opacity: 0.95;
      margin-top: 22px;
    }

    .metric-icon {
      width: 50px;
      height: 50px;
      border-radius: 16px;
      background: rgba(255, 255, 255, 0.16);
      display: grid;
      place-items: center;
      font-size: 1.3rem;
    }

    .section-title {
      display: flex;
      justify-content: space-between;
      align-items: flex-start;
      gap: 14px;
      margin-bottom: 18px;
    }

    .section-title h5,
    .section-title h6 {
      margin: 0 0 4px;
      font-size: 1.08rem;
      font-weight: 800;
    }

    .section-title p {
      margin: 0;
      font-size: 0.92rem;
      color: var(--muted);
    }

    .chip {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 12px;
      border-radius: 999px;
      font-size: 0.82rem;
      font-weight: 700;
      white-space: nowrap;
      border: 1px solid transparent;
    }

    .chip.primary {
      color: var(--primary);
      background: var(--primary-soft);
      border-color: rgba(31, 111, 235, 0.16);
    }

    .chip.success {
      color: var(--success);
      background: var(--success-soft);
      border-color: rgba(18, 183, 106, 0.16);
    }

    .chip.warning {
      color: #a46200;
      background: var(--warning-soft);
      border-color: rgba(247, 144, 9, 0.18);
    }

    .chip.purple {
      color: var(--purple);
      background: rgba(122, 90, 248, 0.10);
      border-color: rgba(122, 90, 248, 0.14);
    }

    .chip.danger {
      color: var(--danger);
      background: var(--danger-soft);
      border-color: rgba(240, 68, 56, 0.14);
    }

    .quick-actions {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 14px;
      margin-bottom: 18px;
    }

    .action-tile {
      border: 1px solid var(--line);
      background: linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
      border-radius: 18px;
      padding: 16px;
      display: flex;
      align-items: flex-start;
      gap: 14px;
    }

    .action-content {
      flex: 1;
      min-width: 0;
    }

    .action-body {
      margin-bottom: 14px;
    }

    .action-btn {
      border: 0;
      border-radius: 12px;
      padding: 10px 16px;
      font-weight: 700;
      font-size: 0.92rem;
      cursor: pointer;
      transition: transform 0.2s ease, box-shadow 0.2s ease, opacity 0.2s ease;
      box-shadow: 0 8px 18px rgba(12, 28, 63, 0.10);
    }

    .action-btn:hover {
      transform: translateY(-1px);
      opacity: 0.96;
    }

    .action-btn:active {
      transform: translateY(0);
      box-shadow: 0 4px 10px rgba(12, 28, 63, 0.10);
    }

    .action-btn.success {
      background: var(--success);
      color: #fff;
    }

    .action-btn.warning {
      background: var(--warning);
      color: #fff;
    }

    .action-btn.primary {
      background: var(--primary);
      color: #fff;
    }

    .action-btn.purple {
      background: var(--purple);
      color: #fff;
    }

    .action-tile .tile-icon {
      width: 46px;
      height: 46px;
      border-radius: 14px;
      display: grid;
      place-items: center;
      font-size: 1.15rem;
      flex-shrink: 0;
    }

    .tile-icon.primary {
      background: var(--primary-soft);
      color: var(--primary);
    }

    .tile-icon.success {
      background: var(--success-soft);
      color: var(--success);
    }

    .tile-icon.warning {
      background: var(--warning-soft);
      color: var(--warning);
    }

    .tile-icon.purple {
      background: rgba(122, 90, 248, 0.10);
      color: var(--purple);
    }

    .tile-title {
      font-weight: 700;
      margin-bottom: 4px;
    }

    .tile-text {
      font-size: 0.9rem;
      color: var(--muted);
      line-height: 1.5;
    }

    .farm-visual {
      background: linear-gradient(180deg, #eff7ff 0%, #f9fcff 100%);
      border: 1px solid var(--line);
      border-radius: 18px;
      padding: 18px;
    }

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

    .zone-card {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: 18px;
      padding: 16px;
    }

    .zone-head {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 10px;
      margin-bottom: 10px;
    }

    .zone-name {
      font-weight: 800;
      font-size: 0.97rem;
    }

    .zone-sub {
      font-size: 0.84rem;
      color: var(--muted);
    }

    .zone-metrics {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 10px;
      margin-top: 12px;
    }

    .zone-metric {
      background: #f8fbff;
      border: 1px solid var(--line);
      border-radius: 14px;
      padding: 12px;
    }

    .zone-metric span {
      display: block;
      color: var(--muted);
      font-size: 0.82rem;
      margin-bottom: 4px;
    }

    .zone-metric strong {
      font-size: 1rem;
    }

    .schedule-list,
    .alert-list,
    .task-list {
      display: grid;
      gap: 12px;
    }

    .schedule-item,
    .alert-item,
    .task-item {
      display: flex;
      gap: 14px;
      align-items: flex-start;
      border: 1px solid var(--line);
      background: linear-gradient(180deg, #ffffff 0%, #f9fbff 100%);
      border-radius: 16px;
      padding: 14px;
    }

    .schedule-icon,
    .alert-icon,
    .task-icon {
      width: 42px;
      height: 42px;
      border-radius: 14px;
      display: grid;
      place-items: center;
      font-size: 1rem;
      flex-shrink: 0;
    }

    .schedule-icon.primary,
    .alert-icon.primary,
    .task-icon.primary {
      background: var(--primary-soft);
      color: var(--primary);
    }

    .schedule-icon.success,
    .alert-icon.success,
    .task-icon.success {
      background: var(--success-soft);
      color: var(--success);
    }

    .schedule-icon.warning,
    .alert-icon.warning,
    .task-icon.warning {
      background: var(--warning-soft);
      color: var(--warning);
    }

    .alert-icon.danger,
    .task-icon.danger {
      background: var(--danger-soft);
      color: var(--danger);
    }

    .item-title {
      font-weight: 700;
      margin-bottom: 5px;
      font-size: 0.96rem;
    }

    .item-text {
      margin: 0;
      color: var(--muted);
      font-size: 0.9rem;
      line-height: 1.55;
    }

    .tank {
      border: 1px solid var(--line);
      border-radius: 18px;
      padding: 18px;
      background: linear-gradient(180deg, #ffffff 0%, #f6fbff 100%);
    }

    .tank-visual {
      width: 170px;
      height: 250px;
      border: 6px solid #dbe5f1;
      border-radius: 30px 30px 22px 22px;
      margin: 6px auto 18px;
      position: relative;
      overflow: hidden;
      background: #f7fbff;
    }

    .tank-visual::before {
      content: "";
      position: absolute;
      top: -16px;
      left: 50%;
      transform: translateX(-50%);
      width: 72px;
      height: 16px;
      border-radius: 8px 8px 0 0;
      background: #dbe5f1;
    }

    .tank-fill {
      position: absolute;
      left: 0;
      right: 0;
      bottom: 0;
      height: 24%;
      background: linear-gradient(180deg, #54a7ff 0%, #1f6feb 100%);
    }

    .tank-fill::before,
    .tank-fill::after {
      content: "";
      position: absolute;
      left: -10%;
      right: -10%;
      height: 18px;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.22);
      top: -9px;
    }

    .tank-stats {
      display: grid;
      gap: 10px;
    }

    .tank-stat {
      display: flex;
      justify-content: space-between;
      gap: 10px;
      padding: 11px 12px;
      border-radius: 14px;
      background: #fff;
      border: 1px solid var(--line);
      font-size: 0.92rem;
    }

    .tank-stat span {
      color: var(--muted);
    }

    .tank-stat strong {
      font-weight: 700;
    }

    .mini-table {
      width: 100%;
      border-collapse: collapse;
      margin-top: 10px;
    }

    .mini-table th,
    .mini-table td {
      padding: 12px 10px;
      border-bottom: 1px solid var(--line);
      text-align: left;
      font-size: 0.9rem;
    }

    .mini-table th {
      color: var(--muted);
      font-weight: 700;
      font-size: 0.82rem;
      text-transform: uppercase;
      letter-spacing: 0.04em;
    }

    .footer-note {
      text-align: center;
      color: #8d9bb1;
      font-size: 0.88rem;
      padding: 12px 0 4px;
    }

    @media (max-width: 1280px) {
      .grid-4 {
        grid-template-columns: repeat(2, 1fr);
      }

      .grid-2,
      .grid-main {
        grid-template-columns: 1fr;
      }

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

      .actions {
        justify-content: flex-start;
      }
    }

    @media (max-width: 992px) {
      .sidebar {
        position: static;
        width: 100%;
        height: auto;
      }

      .main {
        margin-left: 0;
        width: 100%;
      }

      .layout {
        display: block;
      }
    }

    @media (max-width: 640px) {

      .grid-4,
      .quick-actions,
      .field-grid,
      .zone-metrics {
        grid-template-columns: 1fr;
      }

      .main {
        padding: 16px;
      }

      .sidebar {
        padding: 18px 14px;
      }

      .metric-value {
        font-size: 1.7rem;
      }
    }