/* Graph panel — fixed height, not flex-grow */
#graph-panel {
    flex: 0 0 auto;
}

#graph-panel.collapsed {
    flex: 0 0 auto;
}

/* Legend in header */
.graph-legend {
    display: inline-flex;
    gap: 10px;
    margin-right: auto;
    font-size: 10px;
    font-weight: 400;
    text-transform: none;
    letter-spacing: 0;
    transition: opacity 0.25s ease;
    opacity: 1;
}

/* Hide title when expanded, show legend; opposite when collapsed */
.graph-title {
    transition: opacity 0.25s ease;
}

#graph-panel:not(.collapsed) .graph-title {
    display: none;
}

#graph-panel.collapsed .graph-legend {
    display: none;
}

.legend-item {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    color: var(--text-tertiary);
}

.legend-dot {
    width: 10px;
    height: 3px;
    border-radius: 1px;
    display: inline-block;
}

/* Canvas area */
#graph-canvas-container {
    width: 100%;
    height: 200px;
    padding: var(--space-xs);
    overflow: hidden;
}

#graph-canvas {
    width: 100%;
    height: 100%;
    display: block;
    touch-action: none;
}

/* Controls bar — stacked rows */
#graph-controls {
    display: flex;
    flex-direction: column;
    border-top: 1px solid var(--surface-border);
    position: relative;
}

.graph-controls-primary {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 4px;
    padding: 6px;
    position: relative;
}

#btn-graph-distribution .icon-mask {
    width: 14px;
    height: 14px;
}

.graph-controls-secondary {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 4px;
    padding: 6px;
    background: var(--bg-tertiary);

    /* Make absolute so it flies out without pushing parents */
    position: absolute;
    top: 100%;
    left: -1px;
    width: calc(100% + 2px);
    z-index: 10;

    border: 1px solid var(--surface-border);
    border-bottom-left-radius: 12px;
    border-bottom-right-radius: 12px;

    overflow: hidden;
    max-height: 42px;
    transition: max-height 0.25s ease, padding 0.25s ease, opacity 0.2s ease, border-color 0.25s ease;
    opacity: 1;
}

.graph-controls-secondary-group {
    display: flex;
    align-items: center;
    gap: 4px;
}

.graph-controls-secondary.collapsed {
    max-height: 0;
    padding: 0 8px;
    opacity: 0;
    border-color: transparent;
}

/* Square buttons */
#graph-controls button {
    font-size: 12px;
    padding: 0;
    width: 30px;
    height: 30px;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    background: transparent;
    border: 1px solid var(--surface-border);
    cursor: pointer;
    line-height: 1;
    text-align: center;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    outline: none;
}

#graph-controls button:hover {
    background: var(--surface-hover);
    color: var(--text-primary);
}

#graph-controls button:active {
    background: var(--surface-active);
}

#graph-controls button,
.graph-line-toggle {
    user-select: none;
    -webkit-user-select: none;
}

.btn-graph-toggle.active {
    background: var(--surface-hover) !important;
    color: var(--text-primary) !important;
}

.graph-controls-sep {
    width: 1px;
    height: 20px;
    background: var(--surface-border);
    margin: 0 auto;
}

/* Line toggle buttons */
.graph-line-toggle {
    font-size: 16px !important;
    opacity: 0.3;
    transition: opacity 0.15s ease;
}

.graph-line-toggle.active {
    opacity: 1;
}

@media (max-width: 1100px),
(pointer: coarse) {
    body.mobile-viewport #graph-panel.panel.collapsible>.panel-header {
        cursor: default;
    }

    body.mobile-viewport #graph-panel.panel.collapsible>.panel-header:hover {
        background: transparent;
    }

    body.mobile-viewport #graph-panel .collapse-chevron,
    body.mobile-viewport #btn-graph-tools {
        display: none;
    }

    .graph-legend {
        gap: 8px;
        flex-wrap: wrap;
        font-size: 9px;
    }

    #graph-canvas-container {
        height: auto;
        min-height: 248px;
        max-height: min(42vh, 340px);
        aspect-ratio: 4 / 3;
        padding: var(--space-sm);
    }

    .graph-controls-primary {
        display: grid;
        grid-template-columns: repeat(12, minmax(0, 1fr));
        gap: 8px;
        padding: 10px 8px 8px;
        align-items: stretch;
    }

    .graph-controls-primary>span {
        display: none;
    }

    .graph-controls-primary>#btn-graph-distribution {
        grid-column: 1 / span 4;
        grid-row: 1;
    }

    .graph-controls-primary>button[data-action="last25"] {
        grid-column: 5 / span 4;
        grid-row: 1;
    }

    .graph-controls-primary>button[data-action="reset"] {
        grid-column: 9 / span 4;
        grid-row: 1;
    }

    .graph-controls-primary>.graph-line-toggle[data-line="time"] {
        grid-column: 1 / span 3;
        grid-row: 2;
    }

    .graph-controls-primary>.graph-line-toggle[data-line="line1"] {
        grid-column: 4 / span 3;
        grid-row: 2;
    }

    .graph-controls-primary>.graph-line-toggle[data-line="line2"] {
        grid-column: 7 / span 3;
        grid-row: 2;
    }

    .graph-controls-primary>.graph-line-toggle[data-line="line3"] {
        grid-column: 10 / span 3;
        grid-row: 2;
    }

    .graph-controls-primary.graph-controls-primary-no-last25>#btn-graph-distribution {
        grid-column: 1 / span 6;
    }

    .graph-controls-primary.graph-controls-primary-no-last25>button[data-action="reset"] {
        grid-column: 7 / span 6;
    }

    .graph-controls-sep {
        display: none;
    }

    .graph-controls-secondary {
        position: static;
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        justify-items: center;
        align-items: flex-start;
        width: 100%;
        left: auto;
        border-left: none;
        border-right: none;
        border-bottom: none;
        border-radius: 0;
        column-gap: 0;
        row-gap: 0;
        padding: 0 8px 10px;
        background: transparent;
        max-height: none;
        opacity: 1;
        overflow: visible;
    }

    .graph-controls-secondary.collapsed {
        max-height: none;
        padding: 0 8px 10px;
        opacity: 1;
        border-color: transparent;
    }

    .graph-controls-secondary-group {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        grid-template-rows: repeat(3, 42px);
        column-gap: 8px;
        row-gap: 8px;
        width: 100%;
        max-width: 190px;
        padding-inline: 6px;
        box-sizing: border-box;
    }

    .graph-controls-secondary-group>button[data-action="zoom-y-in"],
    .graph-controls-secondary-group>button[data-action="pan-up"] {
        grid-column: 1 / -1;
        grid-row: 1;
        justify-self: center;
    }

    .graph-controls-secondary-group>button[data-action="zoom-x-out"],
    .graph-controls-secondary-group>button[data-action="pan-left"] {
        grid-column: 1;
        grid-row: 2;
    }

    .graph-controls-secondary-group>button[data-action="zoom-x-in"],
    .graph-controls-secondary-group>button[data-action="pan-right"] {
        grid-column: 2;
        grid-row: 2;
    }

    .graph-controls-secondary-group>button[data-action="zoom-y-out"],
    .graph-controls-secondary-group>button[data-action="pan-down"] {
        grid-column: 1 / -1;
        grid-row: 3;
        justify-self: center;
    }

    #graph-controls button {
        width: 100%;
        min-width: 0;
        height: auto;
        min-height: 42px;
        padding: 0 10px;
        border-radius: 14px;
        font-size: 13px;
        font-weight: 700;
        letter-spacing: 0.02em;
        background: linear-gradient(180deg, var(--surface-ghost), var(--surface-ghost-muted));
        box-shadow: inset 0 1px 0 var(--surface-ghost-hover);
    }

    #graph-controls .graph-controls-secondary .graph-controls-secondary-group>button {
        width: 100%;
        min-width: 0;
        height: 42px;
        min-height: 42px;
        padding: 0;
    }

    #graph-controls .graph-controls-secondary .graph-controls-secondary-group>button[data-action="zoom-y-in"],
    #graph-controls .graph-controls-secondary .graph-controls-secondary-group>button[data-action="zoom-y-out"],
    #graph-controls .graph-controls-secondary .graph-controls-secondary-group>button[data-action="pan-up"],
    #graph-controls .graph-controls-secondary .graph-controls-secondary-group>button[data-action="pan-down"] {
        width: calc((100% - 8px) / 2);
    }

    .graph-controls-primary>button[data-action] {
        background: linear-gradient(180deg, rgba(88, 166, 255, 0.16), rgba(88, 166, 255, 0.06));
        border-color: rgba(121, 192, 255, 0.22);
        color: var(--text-primary);
    }

    .graph-controls-primary .graph-line-toggle {
        font-size: 0 !important;
        gap: 8px;
        opacity: 0.72;
        background: var(--surface-ghost-muted);
        border-color: var(--floating-surface-border);
    }

    .graph-controls-primary .graph-line-toggle::before {
        content: "";
        width: 9px;
        height: 9px;
        border-radius: 50%;
        background: currentColor;
        flex: 0 0 auto;
    }

    .graph-controls-primary .graph-line-toggle::after {
        content: attr(data-mobile-label);
        font-size: 11px;
        font-weight: 700;
        letter-spacing: 0.08em;
        text-transform: uppercase;
        line-height: 1;
    }

    .graph-controls-primary .graph-line-toggle.active {
        opacity: 1;
        background: var(--surface-ghost-active);
        border-color: currentColor;
    }
}

/* @media (max-width: 1100px) and (orientation: landscape) and (max-height: 650px),
(pointer: coarse) and (orientation: landscape) and (max-height: 650px) { */
@media (orientation: landscape) {
    body.mobile-viewport[data-mobile-panel="trend"] #graph-panel>.panel-header {
        display: none;
    }

    body.mobile-viewport[data-mobile-panel="trend"] #right-panel {
        height: 100%;
        min-height: 0;
        align-items: stretch;
        justify-content: stretch;
    }

    body.mobile-viewport[data-mobile-panel="trend"] #graph-panel {
        height: 100%;
        min-height: 0;
        max-height: 100%;
        display: flex;
        flex-direction: column;
        overflow: hidden;
    }

    body.mobile-viewport[data-mobile-panel="trend"] #graph-body {
        flex: 1 1 auto;
        min-height: 0;
        display: grid;
        grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
        align-items: stretch;
    }

    body.mobile-viewport[data-mobile-panel="trend"] #graph-canvas-container {
        height: 100%;
        min-height: 0;
        max-height: none;
        aspect-ratio: auto;
        padding: 8px;
    }

    body.mobile-viewport[data-mobile-panel="trend"] #graph-controls {
        border-top: none;
        border-left: 1px solid var(--surface-border);
        display: flex;
        flex-direction: column;
        justify-content: center;
        min-height: 0;
    }

    body.mobile-viewport[data-mobile-panel="trend"] .graph-controls-primary,
    body.mobile-viewport[data-mobile-panel="trend"] .graph-controls-secondary {
        row-gap: 6px;
        column-gap: 6px;
    }

    body.mobile-viewport[data-mobile-panel="trend"] .graph-controls-primary {
        grid-template-columns: repeat(12, minmax(0, 1fr));
        padding: 6px;
    }

    body.mobile-viewport[data-mobile-panel="trend"] .graph-controls-primary>#btn-graph-distribution {
        grid-column: 1 / span 4;
        grid-row: 1;
    }

    body.mobile-viewport[data-mobile-panel="trend"] .graph-controls-primary>button[data-action="last25"] {
        grid-column: 5 / span 4;
        grid-row: 1;
    }

    body.mobile-viewport[data-mobile-panel="trend"] .graph-controls-primary>button[data-action="reset"] {
        grid-column: 9 / span 4;
        grid-row: 1;
    }

    body.mobile-viewport[data-mobile-panel="trend"] .graph-controls-primary>.graph-line-toggle[data-line="time"] {
        grid-column: 1 / span 3;
        grid-row: 2;
    }

    body.mobile-viewport[data-mobile-panel="trend"] .graph-controls-primary>.graph-line-toggle[data-line="line1"] {
        grid-column: 4 / span 3;
        grid-row: 2;
    }

    body.mobile-viewport[data-mobile-panel="trend"] .graph-controls-primary>.graph-line-toggle[data-line="line2"] {
        grid-column: 7 / span 3;
        grid-row: 2;
    }

    body.mobile-viewport[data-mobile-panel="trend"] .graph-controls-primary>.graph-line-toggle[data-line="line3"] {
        grid-column: 10 / span 3;
        grid-row: 2;
    }

    body.mobile-viewport[data-mobile-panel="trend"] .graph-controls-primary.graph-controls-primary-no-last25>#btn-graph-distribution {
        grid-column: 1 / span 6;
    }

    body.mobile-viewport[data-mobile-panel="trend"] .graph-controls-primary.graph-controls-primary-no-last25>button[data-action="reset"] {
        grid-column: 7 / span 6;
    }

    body.mobile-viewport[data-mobile-panel="trend"] .graph-controls-secondary {
        padding: 0 6px 6px;
    }

    body.mobile-viewport[data-mobile-panel="trend"] .graph-controls-secondary-group {
        grid-template-rows: repeat(3, minmax(34px, 1fr));
        row-gap: 6px;
        column-gap: 6px;
        max-width: 170px;
    }

    body.mobile-viewport[data-mobile-panel="trend"] #graph-controls button,
    body.mobile-viewport[data-mobile-panel="trend"] #graph-controls .graph-controls-secondary .graph-controls-secondary-group>button {
        min-height: clamp(34px, 6.8vh, 42px);
        height: clamp(34px, 6.8vh, 42px);
        border-radius: 12px;
        font-size: 12px;
    }
}

@media (max-width: 1100px) {
    .graph-legend {
        display: none;
    }

    #graph-panel:not(.collapsed) .graph-title {
        display: inline;
    }

    #graph-canvas-container {
        min-height: 232px;
        max-height: min(40vh, 320px);
    }

    .graph-controls-sep {
        display: none;
    }
}