*,
    *::before,
    *::after {
        box-sizing: border-box;
    }

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

    body {
        display: flex;
        flex-direction: column;
        min-height: 100vh;
    }

    :root {
        --header-h: 64px;
        --header-bg: linear-gradient(90deg, #1e293b, #0f172a);
        --header-color: #e6eef8;
        --footer-h: 52px;
        --footer-bg: linear-gradient(90deg, #1e293b, #0f172a);
        --footer-color: #e6eef8;
    }

    main {
        height: calc(100vh - var(--header-h) - var(--footer-h));
        overflow: auto;
        -webkit-overflow-scrolling: touch;
        padding: 16px;
        padding-bottom: calc(var(--footer-h) + 16px);
    }

    .container {
        max-width: 1100px;
        margin: 12px auto;
        padding: 12px;
        background: #ffffff;
        border-radius: 12px;
        box-shadow: 0 8px 24px rgba(2, 6, 23, 0.06);
    }

    .containerindex {
        max-width: 1100px;
        margin: 12px auto;
        padding: 12px;
        padding-top: 160px;
        /* Adjusted for multiple headers */
        background: #ffffff;
        border-radius: 12px;
        box-shadow: 0 8px 24px rgba(2, 6, 23, 0.06);
    }

    .grid {
        display: flex;
        gap: 12px;
        flex-wrap: wrap;
        align-items: flex-start;
    }

    .card {
        flex: 1 1 43%;
        min-width: 300px;
        display: flex;
        flex-direction: column;
        background: linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.02));
        border-radius: 10px;
        padding: 12px;
        box-shadow: 0 8px 20px rgba(0, 0, 0, 0.06);
    }

    .card.wide {
        flex-basis: 100%;
    }

    .card h3 {
        margin: 0 0 8px 0;
        font-size: 1.3rem;
    }

    .card .chart-wrap {
        flex: 1 1 auto;
        min-height: 180px;
        height: 247px;
        position: relative;
    }

    .card canvas {
        display: block;
        width: 100% !important;
        height: 100% !important;
    }

    .status-row {
        margin-top: 12px;
        color: #9fb2d6;
        display: flex;
        justify-content: space-between;
        font-size: 11px;
    }

    @media (max-width: 640px) {
        :root {
            --header-h: 56px;
            --footer-h: 56px;
        }

        main {
            padding: 10px;
        }

        .card {
            flex: 1 1 100%;
            min-width: auto;
        }

        .card .chart-wrap {
            height: 220px;
            min-height: 160px;
        }
    }

    .site-footer {
        position: fixed;
        left: 0;
        right: 0;
        bottom: 0;
        height: var(--footer-h);
        display: flex;
        align-items: center;
        justify-content: center;
        text-align: center;
        padding: 0 32px;
        background: var(--footer-bg);
        color: var(--footer-color);
        z-index: 999;
        box-shadow: 0 -4px 8px rgba(0, 0, 0, 0.18);
        font-size: 14px;
    }

    /* === MULTIPLE TOP HEADERS === */
    .top-header-1 {
        position: fixed;
        left: 0;
        right: 0;
        height: 50px;
        display: flex;
        align-items: center;
        justify-content: center;
        color: #e6eef8;
        font-size: 17px;
        z-index: 1001;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .top-header-2 {
        position: fixed;
        left: 0;
        right: 0;
        height: 40px;
        display: flex;
        align-items: center;
        justify-content: center;
        color: #e6eef8;
        font-size: 14px;
        z-index: 1001;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .top-header-1 {
        top: 0;
        background: #0f172a;
        font-size: 20px;
    }

    .top-header-2 {
        position: fixed;
        top: 50px;
        left: 0;
        right: 0;
        height: var(--footer-h, 73px);
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 0 48px;
        margin-bottom: 57px;
        background: linear-gradient(90deg, #0f172a, #1e293b);
        color: #e6eef8;
        font-weight: bold;
        font-size: 15px;
        font-weight: 500;
        letter-spacing: 0.4px;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        z-index: 999;
        transition: all 0.3s ease;
    }

    .top-header-2 nav a {
        margin-left: 28px;
        color: #e6eef8;
        text-decoration: none;
        transition: color 0.3s ease;
        font-weight: bold;
    }


    /* === MAIN NAV HEADER === */
    .site-header {
        position: fixed;
        top: 90px;
        left: 0;
        right: 0;
        height: var(--footer-h, 73px);
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 0 48px;
        margin-bottom: 57px;
        background: linear-gradient(90deg, #0f172a, #1e293b);
        color: #e6eef8;
        font-weight: bold;
        font-size: 15px;
        font-weight: 500;
        letter-spacing: 0.4px;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        z-index: 999;
        transition: all 0.3s ease;
    }

    .site-header nav a {
        margin-left: 28px;
        color: #e6eef8;
        text-decoration: none;
        transition: color 0.3s ease;
        font-weight: bold;
    }

    .site-header nav a:hover {
        color: #38bdf8;
    }

    .dropdown-container {
        display: flex;
        align-items: center;
        gap: 12px;
        margin: 7px;
    }

    .dropdown-label {
        font-size: 13px;
        font-weight: 500;
        color: #1e293b;
    }

    .dropdown {
        position: relative;
        display: inline-block;
    }

    .dropdown select {
        appearance: none;
        -webkit-appearance: none;
        -moz-appearance: none;
        color: black;
        padding: 12px 40px 12px 16px;
        border: none;
        border-radius: 12px;
        font-size: 13px;
        cursor: pointer;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
        transition: transform 0.2s ease, box-shadow 0.2s ease;
    }

    .dropdown select:hover {
        transform: translateY(-2px);
        box-shadow: 0 6px 16px rgba(0, 0, 0, 0.25);
    }

    .dropdown::after {
        content: "▼";
        position: absolute;
        right: 16px;
        top: 50%;
        transform: translateY(-50%);
        pointer-events: none;
        color: white;
        font-size: 12px;
    }

    .dropdown select option {
        background: #ffffff;
        color: #1e293b;
        padding: 7px;
    }

    .input-container {
        display: flex;
        flex-wrap: nowrap;
        gap: 10px;
    }

    .input-group {
        position: relative;
        width: auto;
        min-width: 333px;
        margin: 5px;
    }

    .input-group input {
        width: 100%;
        padding: 11px 11px;
        font-size: 13px;
        border: 2px solid #cbd5e1;
        border-radius: 8px;
        outline: none;
        background: white;
        transition: border-color 0.3s ease;
        margin: 5px;
    }

    .input-group input:focus {
        border-color: #3b82f6;
    }

    .input-group label {
        position: absolute;
        left: 12px;
        top: 50%;
        transform: translateY(-50%);
        color: #64748b;
        font-size: 13px;
        pointer-events: none;
        transition: 0.3s ease all;
        background: white;
        padding: 0 4px;
    }

    .input-group input:focus+label,
    .input-group input:not(:placeholder-shown)+label {
        top: -6px;
        left: 8px;
        font-size: 12px;
        color: #3b82f6;
    }

    .checkbox-group {
        display: flex;
        align-items: center;
        gap: 8px;
        margin-bottom: 12px;
    }

    .checkbox-group input[type="checkbox"] {
        accent-color: #3b82f6;
        width: 18px;
        height: 18px;
        cursor: pointer;
    }

    .checkbox-group label {
        font-size: 13px;
        color: #1e293b;
        cursor: pointer;
    }

    .green-btn {
        background-color: green;
        color: white;
        font-weight: bold;
        padding: 10px 20px;
        border: none;
        width: 33%;
        border-radius: 7px;
        cursor: pointer;
    }

    .red-btn {
        background-color: red;
        color: white;
        font-weight: bold;
        padding: 10px 20px;
        border: none;
        width: 33%;
        border-radius: 7px;
        cursor: pointer;
    }

    .red-btn:hover {
        background-color: darkred;
    }

    .form-center {
        text-align: center;
    }

    .social-row {
        display: flex;
        gap: 12px;
        align-items: center;
        padding: 8px;
    }

    .social-btn {
        width: 67px;
        height: 67px;
        display: inline-grid;
        place-items: center;
        border-radius: 8px;
        background: #f3f4f6;
        text-decoration: none;
        transition: transform .12s, box-shadow .12s;
    }

    .social-btn:hover {
        transform: translateY(-3px);
        box-shadow: 0 6px 18px rgba(0, 0, 0, .08);
    }

    .social-btn svg {
        width: 22px;
        height: 22px;
        display: block;
    }

    .sr-only {
        position: absolute;
        left: -10000px;
        top: auto;
        width: 1px;
        height: 1px;
        overflow: hidden;
    }