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

    body {
        background: var(--ocean-deep);
        color: var(--text-primary);
        font-family: 'DM Sans', sans-serif;
        font-weight: 300;
        min-height: 100vh;
    }

    /* ── OCEAN BACKGROUND ── */
    .page-wrap {
        margin-top: 88px;
        position: relative;
        min-height: 100vh;
        overflow: hidden;
        padding: 3rem 2rem 4rem;
    }

    .page-wrap::before {
        content: '';
        position: fixed;
        inset: 0;
        background:
            radial-gradient(ellipse 80% 60% at 20% 80%, rgba(0,100,160,0.25) 0%, transparent 60%),
            radial-gradient(ellipse 60% 50% at 80% 20%, rgba(0,64,120,0.2) 0%, transparent 55%),
            radial-gradient(ellipse 100% 80% at 50% 110%, rgba(0,180,216,0.1) 0%, transparent 50%),
            linear-gradient(180deg, #06131f 0%, #081b2d 40%, #06131f 100%);
        z-index: 0;
    }

    /* floating bubbles */
    .bubbles {
        position: fixed;
        inset: 0;
        z-index: 0;
        pointer-events: none;
        overflow: hidden;
    }

    .bubble {
        position: absolute;
        bottom: -60px;
        border-radius: 50%;
        background: radial-gradient(circle at 35% 35%, rgba(144,224,239,0.35), rgba(0,180,216,0.08));
        border: 1px solid rgba(144,224,239,0.2);
        animation: rise linear infinite;
    }

    @keyframes rise {
        0%   { transform: translateY(0) translateX(0) scale(1);    opacity: 0; }
        10%  { opacity: 1; }
        90%  { opacity: 0.6; }
        100% { transform: translateY(-110vh) translateX(30px) scale(0.6); opacity: 0; }
    }

    /* wave at bottom */
    .wave-divider {
        position: fixed;
        bottom: 0; left: 0; right: 0;
        height: 90px;
        z-index: 0;
        overflow: hidden;
        opacity: 0.18;
    }

    .wave-divider svg { width: 200%; animation: wave-shift 12s linear infinite; }

    @keyframes wave-shift {
        from { transform: translateX(0); }
        to   { transform: translateX(-50%); }
    }

    /* ── CONTENT ── */
    .content {
        position: relative;
        z-index: 1;
        max-width: 1100px;
        margin: 0 auto;
    }

    /* ── HEADER ── */
    .page-header { margin-bottom: 3rem; }

    .eyebrow {
        font-size: 0.7rem;
        letter-spacing: 0.3em;
        text-transform: uppercase;
        color: var(--teal);
        opacity: 0.7;
        margin-bottom: 0.6rem;
    }

    .page-title {
        
        font-weight: 300;
        font-size: clamp(1.2rem, 5vw, 2.4rem);
        color: var(--teal-pale);
        line-height: 1.1;
        letter-spacing: 0.02em;
    }

    .page-title em {
        color: var(--teal-light);
    }

    .page-subtitle {
        margin-top: 0.6rem;
        font-size: 0.9rem;
        color: var(--text-muted);
        font-weight: 300;
        letter-spacing: 0.04em;
    }

    /* ── SECTION LABEL ── */
    .section-label {
        font-size: 0.68rem;
        letter-spacing: 0.25em;
        text-transform: uppercase;
        color: var(--text-muted);
        margin-bottom: 1rem;
        display: flex;
        align-items: center;
        gap: 0.75rem;
    }

    .section-label::after {
        content: '';
        flex: 1;
        height: 1px;
        background: linear-gradient(90deg, var(--glass-border), transparent);
    }

    /* ── FAN GRID ── */
    #fanPanelRow {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(175px, 1fr));
        gap: 1rem;
        margin-bottom: 2.5rem;
    }

    /* ── FAN CARD ── */
    .fan-card {
        position: relative;
        background: var(--glass-bg);
        border: 1px solid var(--glass-border);
        border-radius: 20px;
        padding: 1.75rem 1.25rem 1.5rem;
        text-align: center;
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        transition: transform 0.35s cubic-bezier(0.23,1,0.32,1), box-shadow 0.35s ease, border-color 0.35s ease;
        overflow: hidden;
        animation: card-float-in 0.6s cubic-bezier(0.23,1,0.32,1) both;
    }

    @keyframes card-float-in {
        from { opacity: 0; transform: translateY(24px); }
        to   { opacity: 1; transform: translateY(0); }
    }

    .fan-card::before {
        content: '';
        position: absolute;
        top: 0; left: 10%; right: 10%;
        height: 2px;
        border-radius: 0 0 4px 4px;
        background: linear-gradient(90deg, transparent, rgba(144,224,239,0.6), transparent);
        opacity: 0;
        transition: opacity 0.4s ease;
    }

    .fan-card:hover { transform: translateY(-4px); }

    .fan-card.fan-on {
        border-color: rgba(0,180,216,0.4);
        box-shadow: 0 0 0 1px rgba(0,180,216,0.08), 0 8px 32px rgba(0,0,0,0.35), 0 0 40px rgba(0,180,216,0.1);
    }

    .fan-card.fan-on::before { opacity: 1; }
    .fan-card.fan-off { box-shadow: 0 8px 24px rgba(0,0,0,0.3); opacity: 0.72; }

    /* ── FAN ICON ── */
    .fan-icon-wrap {
        position: relative;
        width: 64px;
        height: 64px;
        margin: 0 auto 1.25rem;
    }

    .ripple-ring {
        position: absolute;
        inset: -8px;
        border-radius: 50%;
        border: 1px solid rgba(0,180,216,0.3);
        opacity: 0;
    }

    .fan-card.fan-on .ripple-ring { animation: ripple-out 2.4s ease-out infinite; }
    .fan-card.fan-on .ripple-ring:nth-child(2) { animation-delay: 0.8s; inset: -18px; }

    @keyframes ripple-out {
        0%   { transform: scale(0.85); opacity: 0.5; }
        100% { transform: scale(1.4);  opacity: 0; }
    }

    .fan-svg-el {
        width: 64px;
        height: 64px;
        position: relative;
        z-index: 1;
    }

    .fan-blade { transition: fill 0.4s ease; }
    .fan-card.fan-on  .fan-blade { fill: var(--teal); }
    .fan-card.fan-off .fan-blade { fill: #2a5068; }

    .fan-hub { transition: fill 0.4s ease; }
    .fan-card.fan-on  .fan-hub { fill: var(--teal-light); }
    .fan-card.fan-off .fan-hub { fill: #3a6070; }

    .fan-blades { transform-origin: 50% 50%; }
    .fan-card.fan-on .fan-blades { animation: fan-spin 1.1s linear infinite; }

    @keyframes fan-spin {
        from { transform: rotate(0deg); }
        to   { transform: rotate(360deg); }
    }

    /* ── FAN LABELS ── */
    .fan-name {
        font-family: 'Cormorant Garamond', serif;
        font-size: 1.25rem;
        font-weight: 400;
        letter-spacing: 0.06em;
        color: var(--teal-pale);
        margin-bottom: 0.35rem;
    }

    .fan-status {
        font-size: 0.7rem;
        letter-spacing: 0.2em;
        text-transform: uppercase;
        font-weight: 500;
        display: inline-flex;
        align-items: center;
        gap: 6px;
        padding: 3px 10px;
        border-radius: 20px;
        transition: all 0.4s ease;
    }

    .fan-card.fan-on .fan-status {
        color: var(--teal);
        background: rgba(0,180,216,0.12);
        border: 1px solid rgba(0,180,216,0.25);
    }

    .fan-card.fan-off .fan-status {
        color: #3d6a80;
        background: rgba(61,106,128,0.1);
        border: 1px solid rgba(61,106,128,0.2);
    }

    .status-pip {
        width: 5px; height: 5px;
        border-radius: 50%;
        flex-shrink: 0;
    }

    .fan-card.fan-on  .status-pip {
        background: var(--teal);
        box-shadow: 0 0 6px var(--teal);
        animation: pip-blink 1.6s ease-in-out infinite;
    }

    .fan-card.fan-off .status-pip { background: #3d6a80; }

    @keyframes pip-blink {
        0%, 100% { opacity: 1; }
        50%       { opacity: 0.25; }
    }

    /* ── CHART CARD ── */
    .chart-card {
        background: var(--glass-bg);
        border: 1px solid var(--glass-border);
        border-radius: 20px;
        padding: 2rem 1.75rem 1.75rem;
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        box-shadow: 0 16px 48px rgba(0,0,0,0.4);
    }

    .temp-summary {
        display: grid;
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 0.9rem;
        margin-bottom: 1.4rem;
    }

    .temp-summary-card {
        padding: 0.9rem 1rem;
        background: rgba(255,255,255,0.03);
        border: 1px solid rgba(144,224,239,0.12);
        border-radius: 16px;
        display: flex;
        flex-direction: column;
        gap: 0.35rem;
    }

    .temp-summary-label {
        font-size: 0.68rem;
        letter-spacing: 0.16em;
        text-transform: uppercase;
        color: var(--text-muted);
    }

    .temp-summary-value {
        font-size: 1.3rem;
        line-height: 1;
        color: var(--teal-pale);
        font-weight: 400;
    }

    .chart-canvas-wrap {
        position: relative;
        min-height: 360px;
    }

    /* ── LIGHT CARDS ── */
    .light-card-row {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
        gap: 1rem;
        margin-bottom: 0;
    }

    .light-card {
        background: var(--glass-bg);
        border: 1px solid rgba(255,255,255,0.06);
        border-radius: 18px;
        padding: 1.4rem 1rem 1.25rem;
        text-align: center;
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        animation: card-float-in 0.6s cubic-bezier(0.23,1,0.32,1) both;
        transition: transform 0.3s cubic-bezier(0.23,1,0.32,1), box-shadow 0.3s ease;
    }

    .light-card:hover { transform: translateY(-3px); box-shadow: 0 12px 32px rgba(0,0,0,0.3); }

    .light-card-dot {
        width: 10px;
        height: 10px;
        border-radius: 50%;
        margin: 0 auto 0.85rem;
    }

    .light-card-key {
        font-size: 0.65rem;
        letter-spacing: 0.24em;
        text-transform: uppercase;
        color: var(--text-muted);
        margin-bottom: 0.45rem;
    }

    .light-card-value {
        font-family: 'Cormorant Garamond', serif;
        font-size: 1.75rem;
        font-weight: 400;
        line-height: 1;
    }

    /* ── LOADING ── */
    #loading {
        text-align: center;
        padding: 3rem 0;
        color: var(--text-muted);
        font-size: 0.85rem;
        letter-spacing: 0.12em;
    }

    .loading-dots span {
        display: inline-block;
        width: 6px; height: 6px;
        background: var(--teal);
        border-radius: 50%;
        margin: 0 3px;
        animation: dot-wave 1.4s ease-in-out infinite;
        opacity: 0.3;
    }

    .loading-dots span:nth-child(2) { animation-delay: 0.2s; }
    .loading-dots span:nth-child(3) { animation-delay: 0.4s; }

    @keyframes dot-wave {
        0%, 80%, 100% { opacity: 0.2; transform: translateY(0); }
        40%            { opacity: 1;   transform: translateY(-5px); }
    }

    @media (max-width: 991.98px) {
        .page-wrap {
            margin-top: 76px;
            padding: 2.5rem 1.5rem 3rem;
        }

        .wave-divider {
            height: 64px;
        }
    }

    @media (max-width: 767.98px) {
        .page-wrap {
            margin-top: 72px;
            padding: 2rem 1rem 2.5rem;
        }

        .page-header {
            margin-bottom: 2rem;
        }

        .section-label {
            gap: 0.5rem;
            font-size: 0.62rem;
            letter-spacing: 0.18em;
        }

        #fanPanelRow {
            grid-template-columns: 1fr;
        }

        .fan-card {
            padding: 1.4rem 1rem 1.25rem;
        }

        .chart-card {
            padding: 1.25rem 1rem;
        }

        .temp-summary {
            grid-template-columns: 1fr;
            gap: 0.75rem;
        }

        .temp-summary-card {
            padding: 0.85rem 0.9rem;
        }

        .temp-summary-value {
            font-size: 1.15rem;
        }

        .chart-canvas-wrap {
            min-height: 240px;
        }

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

    @media (max-width: 575.98px) {
        .page-title {
            font-size: clamp(1.4rem, 8vw, 2rem);
        }

        .page-subtitle {
            font-size: 0.82rem;
            line-height: 1.5;
        }

        .fan-name {
            font-size: 1.05rem;
        }
    }