/* =====================================================
   WATER TANK SYSTEM - PAGE-SPECIFIC STYLES
   ===================================================== */

/* ===== VARIABLES ===== */
:root {
    --bg-primary: #090a0f;
    --bg-secondary: #1b2735;
    --bg-card: rgba(255, 255, 255, 0.04);
    --bg-card-hover: rgba(255, 255, 255, 0.07);
    --border-subtle: rgba(255, 255, 255, 0.08);
    --border-active: rgba(102, 126, 234, 0.4);
    --accent-primary: #667eea;
    --accent-secondary: #764ba2;
    --text-primary: rgba(255, 255, 255, 0.95);
    --text-secondary: rgba(255, 255, 255, 0.6);
    --text-muted: rgba(255, 255, 255, 0.35);
    --t1-color: #4facfe;
    --t2-color: #a78bfa;
    --supply-color: #00e676;
    --supply-bg: rgba(0, 230, 118, 0.1);
    --consumption-color: #ffab40;
    --consumption-bg: rgba(255, 171, 64, 0.1);
    --danger: #ff5252;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
}

body {
    font-family: 'DM Sans', 'Segoe UI', sans-serif;
    background: radial-gradient(ellipse at bottom, var(--bg-secondary) 0%, var(--bg-primary) 100%);
    min-height: 100vh;
    color: var(--text-primary);
    overflow-x: hidden;
    padding-top: 50px;
}

/* ===== DASHBOARD ===== */
.dashboard {
    max-width: 1440px;
    margin: 0 auto;
    padding: 24px 28px 48px;
}

.dash-header {
    margin-bottom: 24px;
    animation: fadeUp 0.5s ease-out;
}

.dash-header-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
}

.dash-header h1 {
    font-size: 26px;
    font-weight: 700;
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, var(--t1-color), var(--accent-primary), var(--t2-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.dash-header p {
    color: var(--text-secondary);
    font-size: 13px;
    margin-top: 3px;
}

.live-badge {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: var(--text-muted);
}

.live-badge .dot {
    width: 6px;
    height: 6px;
    background: var(--supply-color);
    border-radius: 50%;
    animation: pulse-dot 2s ease-in-out infinite;
}

/* ===== OVERVIEW ===== */
.overview-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
    margin-bottom: 22px;
}

.overview-2col {
    grid-template-columns: repeat(2, 1fr);
}

.o-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 16px 18px;
    position: relative;
    overflow: hidden;
    transition: all 0.3s;
    animation: fadeUp 0.5s ease-out both;
}

.o-card:nth-child(1) { animation-delay: .04s; }
.o-card:nth-child(2) { animation-delay: .08s; }
.o-card:nth-child(3) { animation-delay: .12s; }
.o-card:nth-child(4) { animation-delay: .16s; }

.o-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-active);
    transform: translateY(-2px);
}

.o-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
}

.o-card.t1::before { background: linear-gradient(90deg, var(--t1-color), #00d2ff); }
.o-card.t2::before { background: linear-gradient(90deg, var(--t2-color), #c084fc); }
.o-card.ok::before { background: linear-gradient(90deg, var(--supply-color), #69f0ae); }
.o-card.warn::before { background: linear-gradient(90deg, var(--consumption-color), #ffd740); }

.o-label {
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: var(--text-muted);
    margin-bottom: 6px;
}

.o-val {
    font-size: 24px;
    font-weight: 700;
    letter-spacing: -0.5px;
    line-height: 1;
}

.o-val span {
    font-size: 13px;
    font-weight: 500;
    opacity: 0.6;
}

.o-card.t1 .o-val { color: var(--t1-color); }
.o-card.t2 .o-val { color: var(--t2-color); }
.o-card.ok .o-val { color: var(--supply-color); }
.o-card.warn .o-val { color: var(--consumption-color); }

.o-tag {
    display: inline-flex;
    align-items: center;
    gap: 3px;
    font-size: 10px;
    font-weight: 600;
    margin-top: 5px;
    padding: 2px 6px;
    border-radius: 4px;
}

.o-tag.up { color: var(--supply-color); background: var(--supply-bg); }
.o-tag.down { color: var(--danger); background: rgba(255, 82, 82, 0.1); }
.o-tag.flat { color: var(--text-muted); background: rgba(255, 255, 255, 0.04); }

/* ===== TANK CARDS ===== */
.tanks-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
    margin-bottom: 22px;
}

.tank-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 22px 24px;
    overflow: hidden;
    transition: all 0.3s;
    animation: fadeUp 0.6s ease-out both;
}

.tank-card:nth-child(1) { animation-delay: .12s; }
.tank-card:nth-child(2) { animation-delay: .2s; }

.tank-card:hover {
    border-color: var(--border-active);
}

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

.tc-title {
    font-size: 16px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 6px;
}

.tc-header-right {
    display: flex;
    align-items: center;
    gap: 8px;
}

.config-btn {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 16px;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s;
}

.config-btn:hover {
    background: rgba(255, 255, 255, 0.12);
    color: var(--text-primary);
    border-color: var(--border-active);
}

.spike-warn {
    color: #ffab40;
    font-size: 14px;
    animation: pulse-dot 1.5s ease-in-out infinite;
}

.tc-badge {
    font-size: 10px;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: 20px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.tank-card.t1 .tc-badge { background: rgba(79, 172, 254, 0.12); color: var(--t1-color); }
.tank-card.t2 .tc-badge { background: rgba(167, 139, 250, 0.12); color: var(--t2-color); }

.tc-body {
    display: flex;
    gap: 24px;
    align-items: stretch;
}

/* ===== TANK DRAWING ===== */
.tank-vis {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex-shrink: 0;
}

.tank-wrap {
    position: relative;
    width: 110px;
    height: 190px;
}

.tank-top {
    position: absolute;
    top: 0;
    left: -2px;
    right: -2px;
    height: 18px;
    background: rgba(255, 255, 255, 0.06);
    border: 2px solid rgba(255, 255, 255, 0.12);
    border-radius: 8px 8px 0 0;
    border-bottom: none;
}

.tank-pipe {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 16px;
    height: 10px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px 2px 0 0;
}

.tank-shell {
    position: absolute;
    top: 18px;
    bottom: 0;
    left: 0;
    right: 0;
    border: 2px solid rgba(255, 255, 255, 0.12);
    border-radius: 0 0 12px 12px;
    overflow: hidden;
    background: rgba(0, 0, 0, 0.25);
}

.tank-fill {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    border-radius: 0 0 10px 10px;
    transition: height 1.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.tank-card.t1 .tank-fill { background: linear-gradient(180deg, rgba(79, 172, 254, 0.65), rgba(0, 210, 255, 0.35)); }
.tank-card.t2 .tank-fill { background: linear-gradient(180deg, rgba(167, 139, 250, 0.65), rgba(139, 92, 246, 0.35)); }

.tank-fill::before {
    content: '';
    position: absolute;
    top: -5px;
    left: -10%;
    width: 120%;
    height: 10px;
    border-radius: 50%;
}

.tank-card.t1 .tank-fill::before { background: radial-gradient(ellipse, rgba(79, 172, 254, 0.55), transparent 70%); animation: wave-a 3s ease-in-out infinite; }
.tank-card.t2 .tank-fill::before { background: radial-gradient(ellipse, rgba(167, 139, 250, 0.55), transparent 70%); animation: wave-b 3.4s ease-in-out infinite; }

.bbl {
    position: absolute;
    border-radius: 50%;
    opacity: 0;
    animation: bblUp 4s ease-in infinite;
}

.tank-card.t1 .bbl { background: rgba(79, 172, 254, 0.35); }
.tank-card.t2 .bbl { background: rgba(167, 139, 250, 0.35); }

.tank-scale {
    position: absolute;
    top: 18px;
    bottom: 0;
    right: -24px;
    width: 20px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 3px 0;
}

.s-mk {
    font-size: 8px;
    color: var(--text-muted);
    text-align: left;
    position: relative;
}

.s-mk::before {
    content: '';
    position: absolute;
    left: -6px;
    top: 50%;
    width: 4px;
    height: 1px;
    background: rgba(255, 255, 255, 0.12);
}

.tank-pct {
    margin-top: 10px;
    font-size: 32px;
    font-weight: 700;
    letter-spacing: -1.5px;
    line-height: 1;
    text-align: center;
}

.tank-pct span {
    font-size: 16px;
    font-weight: 500;
    opacity: 0.5;
}

.tank-card.t1 .tank-pct { color: var(--t1-color); }
.tank-card.t2 .tank-pct { color: var(--t2-color); }

/* ===== INFO GRID ===== */
.tc-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.tc-info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.tc-info-grid-1col {
    grid-template-columns: 1fr;
}

.tc-metric {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    padding: 12px 14px;
    transition: background 0.2s;
}

.tc-metric:hover {
    background: rgba(255, 255, 255, 0.06);
}

.tc-metric-label {
    font-size: 9px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.7px;
    color: var(--text-muted);
    margin-bottom: 5px;
    display: flex;
    align-items: center;
    gap: 4px;
}

.tc-metric-label .ind {
    width: 5px;
    height: 5px;
    border-radius: 50%;
}

.tc-metric-label .ind.supply { background: var(--supply-color); }
.tc-metric-label .ind.consumption { background: var(--consumption-color); }

.tc-metric-val {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: -0.3px;
}

.tc-metric-val span {
    font-size: 11px;
    font-weight: 500;
    opacity: 0.5;
}

.tc-metric.supply-in .tc-metric-val { color: var(--supply-color); }
.tc-metric.consume-out .tc-metric-val { color: var(--consumption-color); }

.tc-metric-sub {
    font-size: 10px;
    color: var(--text-muted);
    margin-top: 3px;
}

.mini-bar {
    width: 100%;
    height: 4px;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 2px;
    margin-top: 6px;
    overflow: hidden;
}

.mini-fill {
    height: 100%;
    border-radius: 2px;
    transition: width 1s ease;
}

.mini-fill.supply { background: var(--supply-color); }
.mini-fill.consumption { background: var(--consumption-color); }
.mini-fill.level-t1 { background: var(--t1-color); }
.mini-fill.level-t2 { background: var(--t2-color); }

.tc-status {
    margin-top: auto;
    padding-top: 12px;
    border-top: 1px solid var(--border-subtle);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.tc-status-left {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
    font-weight: 500;
}

.st-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
}

.st-dot.on {
    background: var(--supply-color);
    box-shadow: 0 0 6px rgba(0, 230, 118, 0.4);
}

.st-dot.unstable {
    background: #ffab40;
    box-shadow: 0 0 6px rgba(255, 171, 64, 0.4);
    animation: pulse-dot 1s ease-in-out infinite;
}

.st-dot.off {
    background: var(--danger);
    box-shadow: 0 0 6px rgba(255, 82, 82, 0.4);
}

.tc-status-right {
    font-size: 10px;
    color: var(--text-muted);
}

/* ===== BOTTOM PANELS ===== */
.bottom-row {
    display: grid;
    grid-template-columns: 5fr 3fr;
    gap: 18px;
}

.panel {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 22px 24px;
    animation: fadeUp 0.7s ease-out both;
}

.panel:nth-child(1) { animation-delay: .25s; }
.panel:nth-child(2) { animation-delay: .3s; }

.panel-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 18px;
}

.panel-title {
    font-size: 15px;
    font-weight: 600;
}

.tabs {
    display: flex;
    gap: 3px;
    background: rgba(255, 255, 255, 0.04);
    padding: 3px;
    border-radius: var(--radius-sm);
}

.tab-btn {
    font-family: inherit;
    font-size: 11px;
    font-weight: 500;
    padding: 4px 11px;
    border-radius: 6px;
    cursor: pointer;
    color: var(--text-secondary);
    border: none;
    background: none;
    transition: all 0.2s;
}

.tab-btn:hover {
    color: var(--text-primary);
}

.tab-btn.active {
    background: rgba(102, 126, 234, 0.2);
    color: var(--accent-primary);
}

/* ===== CHART ===== */
.chart-wrap {
    width: 100%;
    height: 200px;
}

.chart-wrap svg {
    width: 100%;
    height: 100%;
}

.cg { stroke: rgba(255, 255, 255, 0.05); stroke-width: 1; }
.cl { fill: var(--text-muted); font-size: 10px; font-family: 'DM Sans', sans-serif; }

.line-t1 { fill: none; stroke: var(--t1-color); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.line-t2 { fill: none; stroke: var(--t2-color); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; stroke-dasharray: 6 3; }

.area-t1 { fill: url(#gT1); opacity: 0.25; }
.area-t2 { fill: url(#gT2); opacity: 0.18; }

.cdot {
    r: 3;
    stroke-width: 2;
    cursor: pointer;
    transition: r 0.2s;
}

.cdot:hover { r: 5; }
.cdot.d1 { fill: var(--bg-primary); stroke: var(--t1-color); }
.cdot.d2 { fill: var(--bg-primary); stroke: var(--t2-color); }

.chart-legend {
    display: flex;
    gap: 18px;
    margin-top: 12px;
}

.legend-i {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: var(--text-secondary);
}

.legend-d {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.legend-d.l1 { background: var(--t1-color); }
.legend-d.l2 { background: var(--t2-color); }

/* ===== ACTIVITY LOG ===== */
.act-list {
    display: flex;
    flex-direction: column;
    max-height: 340px;
    overflow-y: auto;
}

.act-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-subtle);
}

.act-item:last-child {
    border-bottom: none;
}

.act-icon {
    width: 30px;
    height: 30px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    flex-shrink: 0;
}

.act-icon.i-in { background: var(--supply-bg); }
.act-icon.i-out { background: var(--consumption-bg); }
.act-icon.i-ok { background: rgba(79, 172, 254, 0.1); }
.act-icon.i-warn { background: rgba(255, 82, 82, 0.1); }
.act-icon.i-config { background: rgba(102, 126, 234, 0.1); }

.act-body {
    flex: 1;
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.4;
}

.act-body strong {
    color: var(--text-primary);
    font-weight: 600;
}

.act-time {
    font-size: 10px;
    color: var(--text-muted);
    flex-shrink: 0;
    margin-top: 1px;
}

/* ===== ALARM STYLES ===== */
.tank-card.alarm-full {
    border-color: var(--danger);
    box-shadow: 0 0 12px rgba(255, 82, 82, 0.15);
    animation: alarm-blink 2s ease-in-out infinite;
}

.tank-card.alarm-low {
    border-color: #ffab40;
    box-shadow: 0 0 12px rgba(255, 171, 64, 0.15);
}

.tank-card.alarm-critical {
    border-color: var(--danger);
    box-shadow: 0 0 16px rgba(255, 82, 82, 0.25);
    animation: alarm-blink 1s ease-in-out infinite;
}

.o-card.alarm-full .o-val { color: var(--danger) !important; }
.o-card.alarm-low .o-val { color: #ffab40 !important; }
.o-card.alarm-critical .o-val { color: var(--danger) !important; }

/* Global alarm banner */
.global-alarm-banner {
    position: fixed;
    top: 50px;
    left: 0;
    right: 0;
    z-index: 900;
    background: linear-gradient(90deg, rgba(255, 82, 82, 0.95), rgba(220, 38, 38, 0.95));
    color: white;
    text-align: center;
    padding: 10px 20px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.5px;
    animation: alarm-blink 1.5s ease-in-out infinite;
    display: none;
}

.global-alarm-banner.active {
    display: block;
}

/* ===== CONFIG MODAL ===== */
.config-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(6px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 5000;
    padding: 20px;
}

.config-modal.active {
    display: flex;
}

.config-modal-content {
    background: linear-gradient(135deg, #1b2735, #0d1117);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 420px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    animation: fadeUp 0.3s ease-out;
}

.config-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px 16px;
    border-bottom: 1px solid var(--border-subtle);
}

.config-modal-header h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.config-modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 18px;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    transition: all 0.2s;
}

.config-modal-close:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
}

.config-modal-body {
    padding: 20px 24px;
}

.config-field {
    margin-bottom: 16px;
}

.config-field label {
    display: block;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    color: var(--text-muted);
    margin-bottom: 6px;
}

.config-field select,
.config-field input {
    width: 100%;
    padding: 10px 14px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 14px;
    transition: border-color 0.2s;
    box-sizing: border-box;
}

.config-field select:focus,
.config-field input:focus {
    outline: none;
    border-color: var(--accent-primary);
}

.config-field select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23999' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 32px;
}

.config-field select option {
    background: #1b2735;
    color: var(--text-primary);
}

.config-preview {
    background: rgba(102, 126, 234, 0.08);
    border: 1px solid rgba(102, 126, 234, 0.2);
    border-radius: var(--radius-sm);
    padding: 12px 14px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 8px;
}

.config-preview-label {
    font-size: 12px;
    color: var(--text-secondary);
}

.config-preview-val {
    font-size: 18px;
    font-weight: 700;
    color: var(--accent-primary);
}

.config-modal-footer {
    display: flex;
    gap: 10px;
    padding: 16px 24px 20px;
    border-top: 1px solid var(--border-subtle);
}

.config-btn-cancel {
    flex: 1;
    padding: 10px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-family: inherit;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.config-btn-cancel:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
}

.config-btn-save {
    flex: 2;
    padding: 10px;
    background: var(--accent-primary);
    border: none;
    border-radius: var(--radius-sm);
    color: white;
    font-family: inherit;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.config-btn-save:hover {
    background: #5a71d4;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

/* ===== ANIMATIONS ===== */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(14px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.35; }
}

@keyframes wave-a {
    0%, 100% { transform: translateX(-5%) scaleY(1); }
    50% { transform: translateX(5%) scaleY(1.5); }
}

@keyframes wave-b {
    0%, 100% { transform: translateX(3%) scaleY(1); }
    50% { transform: translateX(-4%) scaleY(1.4); }
}

@keyframes bblUp {
    0% { opacity: 0; transform: translateY(0) scale(0.4); }
    20% { opacity: 0.5; }
    100% { opacity: 0; transform: translateY(-160px) scale(1); }
}

@keyframes alarm-blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .overview-row { grid-template-columns: repeat(2, 1fr); }
    .bottom-row { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .dashboard { padding: 16px 12px 36px; }
    .tanks-row { grid-template-columns: 1fr; }
    .tc-body { flex-direction: column; align-items: center; }
    .tc-info-grid { width: 100%; }
    .o-val { font-size: 20px; }
    .dash-header h1 { font-size: 21px; }
    .config-modal-content { max-width: 360px; }
}

@media (max-width: 480px) {
    .overview-row { grid-template-columns: 1fr 1fr; gap: 6px; }
    .overview-2col { grid-template-columns: 1fr 1fr; }
    .o-label { font-size: 9px; }
    .o-val { font-size: 18px; }
    .tank-wrap { width: 95px; height: 160px; }
    .tank-shell { top: 16px; }
    .tank-top { height: 16px; }
    .tank-pct { font-size: 26px; }
    .tc-info-grid { grid-template-columns: 1fr; }
    .config-modal { padding: 12px; }
    .config-modal-content { max-width: 100%; }
    .config-modal-header { padding: 16px 18px 12px; }
    .config-modal-body { padding: 16px 18px; }
    .config-modal-footer { padding: 12px 18px 16px; }
    .global-alarm-banner { font-size: 11px; padding: 8px 12px; }
}