:root {
      --bg: #f3f7f6;
      --panel: #ffffff;
      --panel-soft: #eef6f3;
      --text: #16342f;
      --muted: #647a74;
      --primary: #0d8b73;
      --primary-dark: #0a6b59;
      --accent: #35b58f;
      --warning: #f39b2f;
      --danger: #e25353;
      --line: #dce9e5;
      --shadow: 0 20px 45px rgba(13, 83, 70, 0.09);
      --radius: 22px;
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    body {
      font-family: Inter, Arial, Helvetica, sans-serif;
      background: linear-gradient(180deg, #eef5f3 0%, #f8fbfa 100%);
      color: var(--text);
    }

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

    .container {
      width: min(1240px, calc(100% - 32px));
      margin: 0 auto;
    }

    .topbar {
      position: sticky;
      top: 0;
      z-index: 50;
      backdrop-filter: blur(12px);
      background: rgba(243, 247, 246, 0.92);
      border-bottom: 1px solid rgba(220, 233, 229, 0.8);
    }

    .topbar-inner {
      height: 76px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
    }

    .brand {
      display: flex;
      align-items: center;
      gap: 12px;
      font-weight: 800;
      font-size: 1.1rem;
      color: var(--primary-dark);
    }

    .brand-badge {
      width: 42px;
      height: 42px;
      border-radius: 14px;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      display: grid;
      place-items: center;
      color: white;
      font-weight: 800;
      box-shadow: var(--shadow);
    }

    /* .logo {
      width: 20px;
      height: 20px;
      background: url('../pic/drip_logo.png') no-repeat center/contain;      
    } */
   
    .nav {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-wrap: wrap;
    }

    .nav a {
      padding: 12px 16px;
      color: var(--muted);
      border-radius: 12px;
      transition: 0.25s ease;
      font-weight: 600;
    }

    .nav a:hover,
    .nav a.active {
      background: var(--panel);
      color: var(--primary-dark);
      box-shadow: 0 10px 30px rgba(13, 83, 70, 0.08);
    }

    .hero {
      padding: 34px 0 18px;
    }

    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 22px;
      align-items: stretch;
    }

    .hero-card,
    .dashboard,
    .role-card,
    .feature-card,
    .cta-box {
      background: var(--panel);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      box-shadow: var(--shadow);
    }

    .hero-card {
      padding: 34px;
      position: relative;
      overflow: hidden;
      background:
        radial-gradient(circle at top right, rgba(53, 181, 143, 0.18), transparent 34%),
        radial-gradient(circle at left bottom, rgba(13, 139, 115, 0.11), transparent 25%),
        var(--panel);
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(13, 139, 115, 0.09);
      color: var(--primary-dark);
      border: 1px solid rgba(13, 139, 115, 0.12);
      border-radius: 999px;
      padding: 8px 14px;
      font-weight: 700;
      font-size: 0.92rem;
      margin-bottom: 18px;
    }

    h1 {
      font-size: clamp(2.2rem, 4vw, 3.7rem);
      line-height: 1.05;
      letter-spacing: -0.04em;
      margin-bottom: 16px;
      max-width: 700px;
    }

    .hero-card p {
      font-size: 1.02rem;
      line-height: 1.75;
      color: var(--muted);
      max-width: 720px;
    }

    .hero-actions {
      margin-top: 24px;
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }

    .btn {
      border: none;
      border-radius: 14px;
      padding: 14px 20px;
      font-weight: 700;
      cursor: pointer;
      transition: 0.25s ease;
      display: inline-flex;
      align-items: center;
      gap: 10px;
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--primary), var(--primary-dark));
      color: white;
      box-shadow: 0 18px 40px rgba(13, 107, 89, 0.18);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
    }

    .btn-secondary {
      background: var(--panel-soft);
      color: var(--primary-dark);
      border: 1px solid var(--line);
    }

    .mini-stats {
      margin-top: 28px;
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 14px;
    }

    .mini-stat {
      background: rgba(255,255,255,0.72);
      border: 1px solid var(--line);
      border-radius: 18px;
      padding: 18px;
    }

    .mini-stat span {
      display: block;
      color: var(--muted);
      font-size: 0.88rem;
      margin-bottom: 8px;
      font-weight: 600;
    }

    .mini-stat strong {
      font-size: 1.4rem;
      color: var(--text);
    }

    .dashboard {
      padding: 20px;
      display: grid;
      grid-template-rows: auto auto 1fr;
      gap: 16px;
      min-height: 100%;
    }

    .dashboard-head {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
    }

    .dashboard-head h3,
    .section-head h2 {
      font-size: 1.2rem;
      line-height: 1.2;
    }

    .status-pill {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: #eaf8f3;
      color: #0d765d;
      border-radius: 999px;
      padding: 10px 14px;
      font-size: 0.9rem;
      font-weight: 700;
      border: 1px solid #d5efe7;
    }

    .status-pill .dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: #17b26a;
    }

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

    .metric-card {
      border: 1px solid var(--line);
      border-radius: 18px;
      padding: 16px;
      background: linear-gradient(180deg, #ffffff 0%, #f7fbfa 100%);
    }

    .metric-card label {
      font-size: 0.88rem;
      color: var(--muted);
      display: block;
      margin-bottom: 12px;
      font-weight: 600;
    }

    .metric-value {
      display: flex;
      align-items: end;
      gap: 8px;
      margin-bottom: 10px;
    }

    .metric-value strong {
      font-size: 1.8rem;
      line-height: 1;
    }

    .metric-value small {
      color: var(--muted);
      font-weight: 700;
      font-size: 0.88rem;
      padding-bottom: 2px;
    }

    .progress {
      height: 10px;
      background: #edf3f1;
      border-radius: 999px;
      overflow: hidden;
    }

    .progress > i {
      display: block;
      height: 100%;
      border-radius: inherit;
      background: linear-gradient(90deg, var(--primary), var(--accent));
    }

    .quick-panel {
      border: 1px solid var(--line);
      border-radius: 18px;
      padding: 16px;
      display: grid;
      gap: 12px;
      background: var(--panel-soft);
    }

    .quick-row {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 10px;
      padding-bottom: 12px;
      border-bottom: 1px solid rgba(220, 233, 229, 0.9);
    }

    .quick-row:last-child {
      border-bottom: none;
      padding-bottom: 0;
    }

    .quick-row strong {
      display: block;
      margin-bottom: 4px;
    }

    .quick-row span {
      color: var(--muted);
      font-size: 0.92rem;
    }

    .tag {
      background: white;
      border: 1px solid var(--line);
      border-radius: 999px;
      padding: 8px 12px;
      font-size: 0.84rem;
      font-weight: 700;
      color: var(--primary-dark);
    }

    .section {
      padding: 18px 0;
    }

    .section-head {
      display: flex;
      justify-content: space-between;
      align-items: end;
      gap: 16px;
      margin-bottom: 18px;
    }

    .section-head p {
      color: var(--muted);
      max-width: 720px;
      line-height: 1.7;
    }

    .roles-grid,
    .features-grid,
    .preview-grid {
      display: grid;
      gap: 18px;
    }

    .roles-grid {
      grid-template-columns: repeat(3, 1fr);
    }

    .role-card {
      padding: 24px;
      display: grid;
      gap: 16px;
      position: relative;
      overflow: hidden;
    }

    .role-card::after {
      content: "";
      position: absolute;
      inset: auto -30px -30px auto;
      width: 130px;
      height: 130px;
      background: radial-gradient(circle, rgba(53, 181, 143, 0.16), transparent 70%);
    }

    .role-top {
      display: flex;
      justify-content: space-between;
      align-items: start;
      gap: 12px;
    }

    .icon {
      width: 52px;
      height: 52px;
      border-radius: 16px;
      display: grid;
      place-items: center;
      background: linear-gradient(135deg, rgba(13, 139, 115, 0.14), rgba(53, 181, 143, 0.2));
      color: var(--primary-dark);
      font-weight: 900;
      font-size: 1.1rem;
      border: 1px solid rgba(13, 139, 115, 0.1);
    }

    .role-card h3 {
      font-size: 1.2rem;
    }

    .role-card p {
      color: var(--muted);
      line-height: 1.75;
    }

    .role-card ul {
      list-style: none;
      display: grid;
      gap: 10px;
      color: var(--text);
    }

    .role-card li {
      display: flex;
      align-items: start;
      gap: 10px;
      line-height: 1.55;
      color: #25453e;
    }

    .role-card li::before {
      content: "•";
      color: var(--primary);
      font-size: 1.1rem;
      line-height: 1;
      transform: translateY(2px);
    }

    .role-link {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--primary-dark);
      font-weight: 800;
      margin-top: 2px;
    }

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

    .feature-card {
      padding: 22px;
      display: grid;
      gap: 10px;
    }

    .feature-card h4 {
      font-size: 1.02rem;
    }

    .feature-card p {
      color: var(--muted);
      line-height: 1.7;
      font-size: 0.95rem;
    }

    .preview-grid {
      grid-template-columns: 1.15fr 0.85fr;
      align-items: start;
    }

    .panel {
      background: var(--panel);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      box-shadow: var(--shadow);
      padding: 22px;
    }

    .subgrid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 14px;
      margin: 16px 0 18px;
    }

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

    .small-card span {
      display: block;
      color: var(--muted);
      margin-bottom: 8px;
      font-size: 0.88rem;
      font-weight: 600;
    }

    .small-card strong {
      font-size: 1.45rem;
    }

    

    .chart-box.climate-card {
      padding: 22px 22px 18px;
      background: #ffffff;
      border-radius: 26px;
      border: 1px solid #dce9e5;
      box-shadow: 0 18px 40px rgba(13, 83, 70, 0.08);
    }

    .chart-header.chart-header-lg {
      align-items: flex-start;
      margin-bottom: 14px;
    }

    .chart-header.chart-header-lg strong {
      display: block;
      font-size: 1.05rem;
      color: var(--text);
      margin-bottom: 6px;
    }

    .chart-header.chart-header-lg p {
      color: var(--muted);
      line-height: 1.55;
      font-size: 0.94rem;
    }

    .chart-canvas-wrap {
      height: 330px;
      position: relative;
    }

    .tag.tag-primary {
      color: #2a6ef0;
      background: #eef3ff;
      border-color: #d8e4ff;
    }

.chart-box {
      border: 1px solid var(--line);
      border-radius: 20px;
      padding: 18px;
      background: linear-gradient(180deg, #fbfefd 0%, #f5fbf8 100%);
    }

    .chart-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 12px;
      margin-bottom: 18px;
    }

    .chart {
      height: 210px;
      position: relative;
      border-left: 2px solid #d9e6e2;
      border-bottom: 2px solid #d9e6e2;
      margin-left: 6px;
      background:
        repeating-linear-gradient(
          to top,
          transparent 0,
          transparent 38px,
          rgba(220, 233, 229, 0.65) 39px,
          transparent 40px
        );
      overflow: hidden;
      border-radius: 0 0 14px 14px;
    }

    .line {
      position: absolute;
      inset: 0;
    }

    .line svg {
      width: 100%;
      height: 100%;
    }

    .bars {
      position: absolute;
      inset: 0;
      display: flex;
      align-items: end;
      justify-content: space-around;
      padding: 0 8px 0 18px;
      gap: 10px;
    }

    .bar {
      width: 12%;
      border-radius: 14px 14px 0 0;
      background: linear-gradient(180deg, rgba(53, 181, 143, 0.95), rgba(13, 139, 115, 0.85));
      opacity: 0.22;
    }

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

    .alarm-box {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      padding: 18px;
      border-radius: 18px;
      background: linear-gradient(135deg, rgba(243, 155, 47, 0.16), rgba(255, 248, 235, 1));
      border: 1px solid rgba(243, 155, 47, 0.26);
    }

    .alarm-box strong {
      display: block;
      margin-bottom: 6px;
    }

    .alarm-box p {
      color: #8b5d13;
      line-height: 1.55;
      font-size: 0.94rem;
    }

    .list {
      display: grid;
      gap: 12px;
    }

    .list-item {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 12px;
      border: 1px solid var(--line);
      border-radius: 16px;
      padding: 14px;
      background: #fcfefe;
    }

    .list-item strong {
      display: block;
      margin-bottom: 4px;
    }

    .list-item span {
      color: var(--muted);
      font-size: 0.9rem;
    }

    .cta-box {
      padding: 28px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
      margin: 18px 0 38px;
      background:
        radial-gradient(circle at right top, rgba(53, 181, 143, 0.16), transparent 32%),
        linear-gradient(180deg, #ffffff 0%, #f7fbf9 100%);
    }

    .cta-box h3 {
      font-size: 1.5rem;
      margin-bottom: 10px;
    }

    .cta-box p {
      color: var(--muted);
      line-height: 1.75;
      max-width: 720px;
    }

    .footer {
      padding: 10px 0 34px;
      color: var(--muted);
      font-size: 0.95rem;
      text-align: center;
    }

    @media (max-width: 1100px) {
      .hero-grid,
      .preview-grid,
      .roles-grid,
      .features-grid {
        grid-template-columns: 1fr;
      }

      .mini-stats,
      .subgrid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 760px) {
      .topbar-inner {
        height: auto;
        padding: 14px 0;
        align-items: start;
        flex-direction: column;
      }

      .hero-card,
      .dashboard,
      .panel,
      .role-card,
      .feature-card,
      .cta-box {
        padding: 18px;
      }

      .metrics-grid,
      .mini-stats,
      .subgrid {
        grid-template-columns: 1fr;
      }

      .cta-box {
        flex-direction: column;
        align-items: start;
      }

      .chart-canvas-wrap {
        height: 260px;
      }

      h1 {
        font-size: 2rem;
      }
    }