:root {
    /* Base palette - Material Design 3 Dark Baseline */
    --bg-color: #1C1B1F;
    --bg-surface: #1C1B1F;
    --card-bg: rgba(43, 41, 48, 0.9);
    --card-bg-hover: rgba(73, 69, 79, 0.9);
    --card-border: rgba(147, 143, 153, 0.2);
    --card-border-hover: rgba(202, 196, 208, 0.5);

    /* Text */
    --text-primary: #E6E1E5;
    --text-secondary: #CAC4D0;
    --text-muted: #938F99;

    /* Accents (MD3 Tonal Palettes) */
    --accent-solar:   #FFB951;
    --accent-battery: #81C784;
    --accent-grid:    #D0BCFF;
    --accent-heating: #FFB4AB;
    --accent-blue:    #8CB8FF;

    /* Glow helpers */
    --glow-solar:   rgba(255, 185, 81,  0.15);
    --glow-battery: rgba(129, 199, 132, 0.15);
    --glow-grid:    rgba(208, 188, 255, 0.15);

    /* Material Shadow */
    --glass-shadow: 0 4px 8px 3px rgba(0, 0, 0, 0.15), 0 1px 3px rgba(0, 0, 0, 0.3);
    --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
}

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

h1, h2, h3, h4, h5, h6 {
    text-align: left;
    width: 100%;
    display: block;
}

.lang-switch-container {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

#lang-switch {
    background: var(--card-bg);
    color: var(--text-primary);
    border: 1px solid var(--card-border);
    padding: 0.5rem;
    border-radius: 8px;
    font-family: inherit;
    font-size: 0.875rem;
    cursor: pointer;
    backdrop-filter: blur(10px);
    outline: none;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    background-image:
        radial-gradient(ellipse 80% 60% at 20%  0%,  var(--glow-blue, rgba(140, 184, 255, 0.05)) 0px, transparent 55%),
        radial-gradient(ellipse 60% 50% at 90% 100%, var(--glow-battery, rgba(129, 199, 132, 0.05)) 0px, transparent 50%),
        radial-gradient(ellipse 40% 40% at 50%  50%, var(--glow-grid, rgba(208, 188, 255, 0.05)) 0px, transparent 60%);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    padding: 2rem 1rem;
}

.app-container {
    width: 100%;
    max-width: 600px;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

/* Header & Status (Vertical Layout) */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 1rem;
}

.app-title-block {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.app-logo {
    font-size: 2rem;
    line-height: 1;
    animation: pulse-glow 3s ease-in-out infinite;
}

@keyframes pulse-glow {
    0%, 100% { filter: drop-shadow(0 0 6px rgba(255, 185, 81, 0.4)); }
    50%       { filter: drop-shadow(0 0 16px rgba(255, 185, 81, 0.9)); }
}

h1 {
    font-size: 1.35rem;
    font-weight: 800;
    letter-spacing: -0.3px;
    line-height: 1.1;
    background: linear-gradient(120deg, var(--text-primary) 0%, var(--accent-grid) 55%, var(--accent-blue) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    width: auto;
}

.app-subtitle {
    font-size: 0.68rem;
    font-weight: 500;
    color: var(--text-muted);
    letter-spacing: 0.07em;
    text-transform: uppercase;
    margin-top: 2px;
}

.global-status-section {
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--card-border);
    margin-bottom: 1.5rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.global-status-section h2 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

.system-status {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.55rem 1.1rem;
    border-radius: 14px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    backdrop-filter: blur(16px);
    font-weight: 700;
    font-size: 0.92rem;
    transition: var(--transition);
    box-shadow: 0 2px 12px rgba(0,0,0,0.35);
}

.status-indicator:hover {
    border-color: var(--card-border-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.45);
}

.status-indicator.solar      { color: var(--accent-solar);   box-shadow: 0 2px 12px var(--glow-solar); }
.status-indicator.battery    { color: var(--accent-battery); box-shadow: 0 2px 12px var(--glow-battery); }
.status-indicator.grid       { color: var(--accent-grid);    box-shadow: 0 2px 12px var(--glow-grid); }
.status-indicator.consumption{ color: var(--accent-blue);    box-shadow: 0 2px 12px rgba(56,189,248,0.18); }

/* Grid direction arrow */
.grid-arrow {
    font-size: 1.1em;
    font-weight: 900;
    line-height: 1;
    transition: color 0.4s ease, transform 0.4s ease;
}

.grid-arrow.export {
    color: var(--accent-battery);
    text-shadow: 0 0 8px var(--glow-battery);
    transform: translateY(0);
}

.grid-arrow.import {
    color: var(--accent-heating);
    text-shadow: 0 0 8px rgba(248, 113, 113, 0.4);
}

/* Tabs — icon-only bottom nav */
.tabs {
    display: flex;
    gap: 0.4rem;
    background: rgba(14, 19, 32, 0.92);
    padding: 0.5rem;
    border-radius: 16px;
    border: 1px solid var(--card-border);
    backdrop-filter: blur(20px);
    margin-top: 0.5rem;
    margin-bottom: 0;
    box-shadow: 0 4px 24px rgba(0,0,0,0.4);
    position: sticky;
    bottom: 1rem;
    z-index: 50;
}

.tab-btn {
    flex: 1;
    background: transparent;
    color: var(--text-secondary);
    border: none;
    padding: 0.7rem;
    border-radius: 10px;
    font-family: inherit;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.tab-btn svg {
    transition: var(--transition);
}

.tab-btn:hover {
    color: var(--text-primary);
    background: rgba(99, 130, 200, 0.08);
}

.tab-btn:hover svg {
    transform: scale(1.15);
}

.tab-btn.active {
    background: linear-gradient(135deg, rgba(56,189,248,0.18), rgba(129,140,248,0.18));
    color: var(--text-primary);
    border: 1px solid rgba(129,140,248,0.3);
    box-shadow: 0 2px 12px rgba(129,140,248,0.18);
}

.tab-btn.active svg {
    filter: drop-shadow(0 0 6px rgba(129,140,248,0.6));
}

/* PNG icon in tab bar */
.tab-icon-img {
    width: 22px;
    height: 22px;
    object-fit: contain;
    filter: invert(1) opacity(0.7);
    transition: var(--transition);
}

.tab-btn:hover .tab-icon-img {
    filter: invert(1) opacity(1);
    transform: scale(1.15);
}

.tab-btn.active .tab-icon-img {
    filter: invert(1) opacity(1) drop-shadow(0 0 5px rgba(129,140,248,0.7));
}

body.light-theme .tab-icon-img {
    filter: invert(0) opacity(0.6);
}

body.light-theme .tab-btn:hover .tab-icon-img {
    filter: invert(0) opacity(1);
}

body.light-theme .tab-btn.active .tab-icon-img {
    filter: invert(0) opacity(1);
}

/* Tooltip via title attribute - shown on hover via CSS */
.tab-btn::after {
    content: attr(title);
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%) translateY(4px);
    background: rgba(0,0,0,0.85);
    color: #fff;
    font-size: 0.72rem;
    font-weight: 600;
    padding: 0.3rem 0.6rem;
    border-radius: 6px;
    white-space: nowrap;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.2s ease, transform 0.2s ease;
    letter-spacing: 0.02em;
}

.tab-btn:hover::after {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}


.tab-content {
    display: none;
    animation: fadeIn 0.3s ease;
}

.tab-content.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(5px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Chart Container & Toggles */
.chart-container {
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--card-border);
    padding: 1rem;
    border-radius: 18px;
    box-shadow: 0 8px 40px rgba(0,0,0,0.5), inset 0 1px 0 rgba(255,255,255,0.05);
    height: 280px;
    position: relative;
    display: flex;
    flex-direction: column;
    margin-bottom: 2rem;
}

#chart-autarky-overlay {
    align-self: flex-end;
    background: rgba(0, 200, 150, 0.1);
    border: 1px solid rgba(0, 200, 150, 0.25);
    color: var(--accent-battery);
    padding: 0.3rem 0.9rem;
    border-radius: 10px;
    font-size: 0.85rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    z-index: 10;
    letter-spacing: 0.02em;
}

/* Chart Controls Panel (checkboxes + export, below chart) */
.chart-controls-panel {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 14px;
    padding: 0.9rem 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-top: 0.75rem;
    backdrop-filter: blur(16px);
    box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

.chart-controls-section {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.controls-label {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
}

.chart-controls-divider {
    height: 1px;
    background: var(--card-border);
    margin: 0 -0.25rem;
}

/* Chart Checkboxes */
.chart-checkboxes {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1rem;
}

.chart-checkbox {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    cursor: pointer;
    user-select: none;
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: color 0.2s ease;
}

.chart-checkbox input[type="checkbox"] {
    display: none;
}

.cb-box {
    width: 16px;
    height: 16px;
    border-radius: 4px;
    border: 2px solid var(--card-border-hover);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    flex-shrink: 0;
    position: relative;
}

.cb-box::after {
    content: '';
    width: 8px;
    height: 5px;
    border-left: 2px solid #fff;
    border-bottom: 2px solid #fff;
    transform: rotate(-45deg) scale(0);
    transition: transform 0.15s ease;
    position: absolute;
    top: 2px;
}

.chart-checkbox input:checked + .cb-box::after {
    transform: rotate(-45deg) scale(1);
}

/* Per-color accent for checkboxes */
.chart-checkbox[data-color="solar"] .cb-box { border-color: var(--accent-solar); }
.chart-checkbox[data-color="solar"] input:checked + .cb-box { background: var(--accent-solar); border-color: var(--accent-solar); }
.chart-checkbox[data-color="solar"] input:checked ~ .cb-label { color: var(--accent-solar); }

.chart-checkbox[data-color="grid"] .cb-box { border-color: var(--accent-grid); }
.chart-checkbox[data-color="grid"] input:checked + .cb-box { background: var(--accent-grid); border-color: var(--accent-grid); }
.chart-checkbox[data-color="grid"] input:checked ~ .cb-label { color: var(--accent-grid); }

.chart-checkbox[data-color="blue"] .cb-box { border-color: var(--accent-blue); }
.chart-checkbox[data-color="blue"] input:checked + .cb-box { background: var(--accent-blue); border-color: var(--accent-blue); }
.chart-checkbox[data-color="blue"] input:checked ~ .cb-label { color: var(--accent-blue); }

.chart-checkbox[data-color="battery"] .cb-box { border-color: var(--accent-battery); }
.chart-checkbox[data-color="battery"] input:checked + .cb-box { background: var(--accent-battery); border-color: var(--accent-battery); }
.chart-checkbox[data-color="battery"] input:checked ~ .cb-label { color: var(--accent-battery); }

/* Export select + button */
.export-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.export-select {
    width: auto;
    background: var(--card-bg);
    border: 1px solid var(--card-border-hover);
    color: var(--text-primary);
    padding: 0.4rem 0.6rem;
    border-radius: 8px;
    font-family: inherit;
    font-size: 0.82rem;
    font-weight: 500;
    cursor: pointer;
    outline: none;
    transition: border-color 0.2s ease;
    appearance: auto;
}

.export-select:focus {
    border-color: var(--accent-battery);
}

.export-run-btn {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    background: var(--accent-battery);
    color: #fff;
    border: none;
    padding: 0.4rem 0.85rem;
    border-radius: 8px;
    font-family: inherit;
    font-size: 0.82rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
    box-shadow: 0 2px 8px rgba(16, 185, 129, 0.3);
}

.export-run-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 14px rgba(16, 185, 129, 0.45);
    filter: brightness(1.08);
}

body.light-theme .export-select {
    background: #ffffff;
    border-color: rgba(0,0,0,0.15);
}


/* Priority Section */
.section-header {
    margin-bottom: 1.5rem;
}

.section-header h2 {
    font-size: 1.25rem;
    margin-bottom: 0.25rem;
}

.section-header p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Time Filters for Chart */
.time-filters {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
}

.time-btn {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: var(--accent-battery);
    padding: 0.25rem 0.75rem;
    border-radius: 8px;
    font-family: inherit;
    font-size: 0.75rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.time-btn:hover {
    background: rgba(16, 185, 129, 0.2);
    transform: translateY(-2px);
}

.time-btn.active {
    background: var(--accent-battery);
    border-color: var(--accent-battery);
    color: white;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

/* Export - legacy classes kept for safety, hidden now */
.export-container { display: none; }
.export-label { display: none; }
.export-btn { display: none; }


/* Autarky Bar */
.autarky-section {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    padding: 1.1rem 1.25rem;
    border-radius: 16px;
    width: 100%;
    max-width: 600px;
    box-shadow: 0 4px 24px rgba(0,0,0,0.4), inset 0 1px 0 rgba(255,255,255,0.04);
}

.autarky-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
}

.autarky-header h3 {
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-secondary);
}

#live-autarky-value {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--accent-battery);
    text-shadow: 0 0 20px var(--glow-battery);
}

.autarky-track {
    position: relative;
    height: 10px;
    background: var(--card-border);
    border-radius: 6px;
    margin-bottom: 0.5rem;
    overflow: hidden;
}

.autarky-gradient {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    border-radius: 6px;
    background: linear-gradient(to right, #f87171 0%, #f6b93b 50%, #00c896 100%);
    opacity: 0.85;
}

.autarky-marker {
    position: absolute;
    top: -4px;
    left: 75%; /* Set via JS */
    width: 4px;
    height: 20px;
    background: #fff;
    border-radius: 2px;
    box-shadow: 0 0 4px rgba(0,0,0,0.5);
    transform: translateX(-50%);
    transition: left 0.5s ease-out;
}

.autarky-marker::after {
    content: '';
    position: absolute;
    top: -6px;
    left: 50%;
    transform: translateX(-50%);
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 5px solid #fff;
}

.autarky-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

/* Draggable List */
.priority-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    user-select: none;
    -webkit-user-select: none;
    -webkit-touch-callout: none;
    /* Tell browser: no native scroll handling inside this list */
    touch-action: none;
}

.priority-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: var(--card-bg);
    user-select: none;
    -webkit-user-select: none;
    -webkit-touch-callout: none;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--card-border);
    padding: 1rem;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.4), inset 0 1px 0 rgba(255,255,255,0.04);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.priority-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    opacity: 0.8;
    border-radius: 3px 0 0 3px;
}

.priority-item[data-id="boiler"]::before   { background: var(--accent-blue); }
.priority-item[data-id="heating"]::before  { background: var(--accent-heating); }
.priority-item[data-id="battery"]::before  { background: var(--accent-battery); }
.priority-item[data-id="car"]::before      { background: var(--accent-solar); }

.priority-item:hover {
    transform: translateY(-2px);
    border-color: var(--card-border-hover);
    box-shadow: 0 8px 28px rgba(0,0,0,0.5);
}

/* Block text selection on every child: icon, title, slider, svg, etc. */
.priority-item *,
.priority-item *::before,
.priority-item *::after {
    user-select: none !important;
    -webkit-user-select: none !important;
    -webkit-touch-callout: none !important;
}

.priority-item.sortable-ghost {
    opacity: 0.3;
}

.priority-item.sortable-drag {
    background: rgba(22, 33, 54, 0.95);
    cursor: grabbing !important;
}

.drag-handle {
    cursor: grab;
    color: var(--text-secondary);
    font-size: 1.5rem;
    padding: 0 0.5rem;
    user-select: none;
    -webkit-user-select: none;
    touch-action: none;
    -webkit-user-drag: none;
    /* Generous touch target */
    min-width: 44px;
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.drag-handle:active {
    cursor: grabbing;
    color: var(--text-primary);
}

@media (pointer: coarse) {
    /* Touch device: bigger, more obvious handle */
    .drag-handle {
        font-size: 1.8rem;
        min-width: 48px;
        padding: 0 0.6rem;
        color: var(--text-primary);
        opacity: 0.6;
    }
}

.item-content {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex: 1;
}

.item-content .icon {
    font-size: 1.5rem;
    background: rgba(255,255,255,0.05);
    padding: 0.5rem;
    border-radius: 12px;
}

.item-content .title {
    font-weight: 600;
    font-size: 1.1rem;
}

/* Status Badges & Buttons */
.status {
    font-size: 0.75rem;
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.status.active  { background: rgba(0, 200, 150, 0.12); color: var(--accent-battery); border: 1px solid rgba(0,200,150,0.2); }
.status.standby { background: rgba(107, 127, 163, 0.1); color: var(--text-secondary); border: 1px solid rgba(107,127,163,0.15); }

.settings-btn {
    background: rgba(56, 189, 248, 0.08);
    color: var(--accent-blue);
    border: 1px solid rgba(56, 189, 248, 0.22);
    padding: 0.45rem 1rem;
    border-radius: 9px;
    font-family: inherit;
    font-weight: 700;
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--transition);
    letter-spacing: 0.02em;
}

.settings-btn:hover {
    background: rgba(56, 189, 248, 0.18);
    border-color: rgba(56, 189, 248, 0.4);
    box-shadow: 0 4px 14px rgba(56, 189, 248, 0.18);
    transform: translateY(-1px);
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(10px);
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
    z-index: 100;
}

/* Footer */
main {
    padding-bottom: 0;
}

.app-footer {
    text-align: center;
    padding-top: 0.75rem;
    margin-top: 0.75rem;
    border-top: 1px solid var(--card-border);
    color: var(--text-secondary);
    font-size: 0.8rem;
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: all;
}

.modal-content {
    background: var(--bg-color);
    border: 1px solid var(--card-border);
    padding: 2rem;
    border-radius: 24px;
    width: 90%;
    max-width: 400px;
    box-shadow: var(--glass-shadow);
    position: relative;
    transform: translateY(20px);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.modal-overlay.active .modal-content {
    transform: translateY(0);
}

.close-btn {
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    transition: color 0.2s;
}

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

.modal-content h2 {
    margin-bottom: 0.5rem;
}

.modal-content p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-size: 0.875rem;
}

/* Calendar Settings */
.calendar-settings {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.setting-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.setting-group label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
}

input[type="time"] {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    color: var(--text-primary);
    padding: 0.75rem;
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    outline: none;
}

/* Weekdays Checkboxes */
.weekdays {
    display: flex;
    gap: 0.5rem;
    justify-content: space-between;
}

.day-checkbox input {
    display: none;
}

.day-checkbox span {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(255,255,255,0.05);
    border: 1px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.875rem;
}

.day-checkbox input:checked + span {
    background: var(--accent-blue);
    color: white;
    box-shadow: 0 0 10px rgba(59, 130, 246, 0.5);
}

/* Toggle Switch */
.toggle-switch {
    display: flex;
    align-items: center;
    gap: 1rem;
    cursor: pointer;
    flex-direction: row-reverse;
    justify-content: flex-end;
}

.toggle-switch input {
    display: none;
}

.slider {
    position: relative;
    width: 44px;
    height: 24px;
    background: rgba(255,255,255,0.1);
    border-radius: 24px;
    transition: var(--transition);
}

.slider::before {
    content: '';
    position: absolute;
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background: white;
    border-radius: 50%;
    transition: var(--transition);
}

.toggle-switch input:checked + .slider {
    background: var(--accent-solar);
}

.toggle-switch input:checked + .slider::before {
    transform: translateX(20px);
}

.label-text {
    flex: 1;
    font-size: 0.875rem;
}

/* Save Button */
.save-btn {
    width: 100%;
    background: linear-gradient(135deg, var(--accent-blue), #2563eb);
    color: white;
    border: none;
    padding: 1rem;
    border-radius: 12px;
    font-family: inherit;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.save-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(59, 130, 246, 0.4);
}

/* Messages Section */
.messages-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    max-height: 420px;
    overflow: hidden;
}



.message-item {
    flex: 0 0 auto;
    display: flex;
    gap: 1rem;
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--card-border);
    padding: 1.25rem;
    border-radius: 12px;
    box-shadow: var(--glass-shadow);
    align-items: flex-start;
    /* Swipe support */
    position: relative;
    overflow: hidden;
    touch-action: pan-y;
    user-select: none;
    cursor: grab;
    transition: transform 0.25s ease, opacity 0.25s ease, max-height 0.35s ease, margin 0.35s ease, padding 0.35s ease;
    max-height: 300px;
}

.message-item.swiping {
    transition: none; /* disable during active drag */
    cursor: grabbing;
}

.message-item.swipe-out-left {
    transform: translateX(-110%);
    opacity: 0;
}

.message-item.swipe-out-right {
    transform: translateX(110%);
    opacity: 0;
}

.message-item.collapsing {
    max-height: 0;
    padding-top: 0;
    padding-bottom: 0;
    margin: 0;
    opacity: 0;
    border-width: 0;
    overflow: hidden;
}

/* Archive hint revealed on swipe */
.message-item .swipe-hint {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.8rem;
    font-weight: 700;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.15s ease;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.message-item .swipe-hint.hint-left {
    right: 1rem;
    color: var(--accent-heating); /* Red for delete */
}

.message-item .swipe-hint.hint-right {
    left: 1rem;
    color: var(--accent-battery); /* Green for archive */
}

.msg-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    font-weight: bold;
    color: white;
    flex-shrink: 0;
}

.msg-content {
    display: flex;
    flex-direction: column;
}

.msg-content strong {
    font-size: 1rem;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.msg-content .msg-time {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.msg-content p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

/* Message Colors */
.msg-info { border-left: 4px solid var(--accent-battery); }
.msg-info .msg-icon { background: var(--accent-battery); }

.msg-warning { border-left: 4px solid var(--accent-solar); }
.msg-warning .msg-icon { background: var(--accent-solar); }

.msg-error { border-left: 4px solid #ef4444; }
.msg-error .msg-icon { background: #ef4444; }

/* Priority Item Controls */
.item-controls {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.gear-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 1.25rem;
    cursor: pointer;
    padding: 0.25rem;
    border-radius: 6px;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.gear-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.1);
    transform: rotate(30deg);
}

.toggle-switch.small .slider {
    width: 36px;
    height: 20px;
}

.toggle-switch.small .slider::before {
    height: 14px;
    width: 14px;
    left: 3px;
    bottom: 3px;
}

.toggle-switch.small input:checked + .slider::before {
    transform: translateX(16px);
}

.priority-item.inactive {
    opacity: 0.5;
    filter: grayscale(100%);
}


/* Light Theme Overrides - Clean iOS Style */
body.light-theme {
    --bg-color: #F2F2F7;
    --bg-surface: #FFFFFF;
    --card-bg: #FFFFFF;
    --card-bg-hover: #F9F9FB;
    --card-border: rgba(0, 0, 0, 0.05);
    --card-border-hover: rgba(0, 0, 0, 0.1);

    /* Text */
    --text-primary: #000000;
    --text-secondary: #3C3C43;
    --text-muted: rgba(60, 60, 67, 0.6);

    /* Accents */
    --accent-solar:   #FF9500;
    --accent-battery: #34C759;
    --accent-grid:    #5856D6;
    --accent-heating: #FF3B30;
    --accent-blue:    #007AFF;

    /* Glow helpers */
    --glow-solar:   transparent;
    --glow-battery: transparent;
    --glow-grid:    transparent;

    /* Shadow */
    --glass-shadow: 0 4px 14px rgba(0, 0, 0, 0.04), 0 1px 4px rgba(0, 0, 0, 0.02);
}

body.light-theme .gear-btn {
    color: var(--text-secondary);
}
body.light-theme .gear-btn:hover {
    background: rgba(0, 0, 0, 0.05);
}
body.light-theme .toggle-switch .slider {
    background: rgba(0, 0, 0, 0.15);
}
body.light-theme select, body.light-theme input {
    background: #ffffff !important;
    border: 1px solid #d1d5db !important;
}

.header-gear {
    width: 36px;
    height: 36px;
    padding: 0;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;  /* for ☰ text icon */
    flex-shrink: 0;
}
.header-gear:hover {
    background: rgba(255, 255, 255, 0.2);
}
body.light-theme .header-gear {
    background: rgba(0, 0, 0, 0.05);
}
body.light-theme .header-gear:hover {
    background: rgba(0, 0, 0, 0.1);
}


body.light-theme .tab-btn:hover {
    background: rgba(0, 0, 0, 0.05);
}
body.light-theme .tab-btn.active {
    background: #ffffff;
    border: 1px solid rgba(0,0,0,0.1);
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    color: var(--text-primary);
}

body.light-theme .tabs {
    background: #E5E5EA;
    border: 1px solid rgba(0,0,0,0.05);
    box-shadow: none;
}

body.light-theme .tab-btn::after {
    background: rgba(50,50,50,0.9);
}

body.light-theme .chart-controls-panel {
    background: #ffffff;
    border-color: rgba(0,0,0,0.06);
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

/* ---- Month Calendar ---- */
.cal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.75rem;
}
.cal-nav-btn {
    background: transparent;
    border: 1px solid var(--card-border);
    color: var(--text-primary);
    font-size: 1.4rem;
    width: 2rem;
    height: 2rem;
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}
.cal-nav-btn:hover {
    background: var(--card-bg-hover);
}
.cal-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 4px;
}
.cal-dow {
    text-align: center;
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--text-muted);
    padding-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}
.cal-day {
    text-align: center;
    padding: 0.4rem 0;
    border-radius: 6px;
    font-size: 0.85rem;
    cursor: pointer;
    color: var(--text-primary);
    border: 1px solid transparent;
    transition: background 0.15s ease, color 0.15s ease;
    user-select: none;
}
.cal-day:hover {
    background: var(--card-bg-hover);
    border-color: var(--card-border);
}
.cal-day.selected {
    background: var(--accent-battery);
    color: #fff;
    font-weight: 700;
    border-color: transparent;
}
.cal-day.today {
    border: 1.5px solid var(--accent-battery);
    font-weight: 700;
}
.cal-day.empty {
    cursor: default;
}

/* ---- Weather Strip ---- */
.weather-strip {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 6px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 1rem 0.75rem;
    margin-bottom: 1.25rem;
    box-shadow: var(--glass-shadow);
}

.weather-day {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.weather-day .wd-label {
    font-size: 0.68rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
}

.weather-day .wd-icon {
    font-size: 1.6rem;
    line-height: 1;
}

.weather-day .wd-sun {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--accent-solar);
}

.weather-day.today-col .wd-label {
    color: var(--accent-blue);
}
.weather-day.today-col .wd-sun {
    font-size: 0.75rem;
}

/* ---- Section Divider ---- */
.section-divider {
    border: none;
    height: 1px;
    background: linear-gradient(
        to right,
        transparent 0%,
        var(--card-border-hover) 20%,
        var(--card-border-hover) 80%,
        transparent 100%
    );
    margin: 0;
}

/* Weather strip sits between header and live values - tweak spacing */
.weather-strip {
    margin-bottom: 0.75rem;
}

/* ---- Info Button ---- */
.info-btn {
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ---- Plant Info Modal ---- */
.plant-info-modal-content {
    max-height: 85vh;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--card-border) transparent;
}

.plant-info-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    padding-bottom: 0.875rem;
    border-bottom: 1px solid var(--card-border);
}

.plant-info-icon {
    width: 36px;
    height: 36px;
    border-radius: 9px;
    background: linear-gradient(135deg, rgba(255,185,81,0.15), rgba(255,185,81,0.05));
    border: 1px solid rgba(255,185,81,0.25);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-solar);
    flex-shrink: 0;
}

.plant-info-header h2 {
    margin-bottom: 0.15rem;
    font-size: 1.05rem;
}

.plant-info-subtitle {
    font-size: 0.72rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.07em;
    margin-bottom: 0 !important;
}

.plant-info-section {
    margin-bottom: 0.875rem;
    padding-bottom: 0.875rem;
    border-bottom: 1px solid var(--card-border);
}

.plant-info-section:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.plant-info-section-title {
    font-size: 0.67rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.09em;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.plant-info-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.3rem 0;
}

.plant-info-row + .plant-info-row {
    border-top: 1px solid var(--card-border);
}

.plant-info-label {
    font-size: 0.84rem;
    color: var(--text-secondary);
}

.plant-info-value {
    font-size: 0.84rem;
    font-weight: 600;
    color: var(--text-primary);
}

.plant-info-value.mono {
    font-family: 'SF Mono', 'Fira Mono', 'Courier New', monospace;
    font-size: 0.78rem;
    background: rgba(255,255,255,0.05);
    padding: 0.18rem 0.45rem;
    border-radius: 5px;
    border: 1px solid var(--card-border);
    letter-spacing: 0.04em;
}

.plant-info-modules {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.plant-info-modules li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.84rem;
    color: var(--text-secondary);
}

.plant-info-modules li svg {
    color: var(--accent-battery);
    flex-shrink: 0;
}

.plant-info-link-row {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    color: var(--text-muted);
}

.plant-info-link {
    font-size: 0.84rem;
    font-weight: 500;
    color: var(--accent-blue);
    text-decoration: none;
    transition: color 0.2s ease;
}

.plant-info-link:hover {
    color: var(--text-primary);
    text-decoration: underline;
}

body.light-theme .plant-info-value.mono {
    background: rgba(0,0,0,0.04);
    border-color: rgba(0,0,0,0.08);
}

/* ---- Move Up/Down Buttons ---- */
.move-btns {
    display: flex;
    flex-direction: column;
    gap: 2px;
    flex-shrink: 0;
}

.move-btn {
    background: transparent;
    border: 1px solid var(--card-border);
    color: var(--text-secondary);
    font-size: 0.7rem;
    width: 28px;
    height: 22px;
    border-radius: 5px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.15s ease, color 0.15s ease, transform 0.1s ease;
    line-height: 1;
    padding: 0;
}

.move-btn:hover {
    background: var(--accent-grid);
    color: #fff;
    border-color: transparent;
}

.move-btn:active {
    transform: scale(0.9);
}

.move-btn:disabled {
    opacity: 0.2;
    cursor: default;
    pointer-events: none;
}

/* ---- Ensure Move Buttons have big enough touch targets ---- */
@media (max-width: 768px) {
    .move-btn {
        width: 36px;
        height: 28px;
        font-size: 0.85rem;
    }
}

/* ---- Login Screen ---- */
.login-screen {
    position: fixed;
    top: 0; left: 0; width: 100vw; height: 100vh;
    background: var(--bg-color);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    padding: 1rem;
}

.login-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 2rem;
    width: 100%;
    max-width: 380px;
    box-shadow: var(--glass-shadow);
    text-align: center;
}

.login-logo-img {
    height: 60px;
    width: auto;
    margin-bottom: 1.5rem;
    object-fit: contain;
}

.login-title {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 0.2rem;
    background: linear-gradient(120deg, var(--text-primary) 0%, var(--accent-grid) 55%, var(--accent-blue) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    text-align: center;
}

.login-subtitle {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 2rem;
}

.login-card .input-group {
    text-align: center;
    margin-bottom: 1.25rem;
}

.login-card input {
    width: 100%;
    padding: 0.85rem;
    background: var(--bg-color);
    border: 1px solid var(--card-border);
    color: var(--text-primary);
    border-radius: 10px;
    font-size: 1rem;
    transition: var(--transition);
    text-align: center;
}

.login-card input:focus {
    outline: none;
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

.login-btn {
    width: 100%;
    padding: 1rem;
    background: var(--accent-blue);
    color: #fff;
    border: none;
    border-radius: 10px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    margin-top: 1rem;
}

.login-btn:hover {
    background: #2563eb;
}

.login-error {
    color: #ef4444;
    font-size: 0.85rem;
    margin-top: -0.5rem;
    margin-bottom: 1rem;
    text-align: center;
}

/* App hiding */
.app-hidden {
    display: none !important;
}

.logout-btn:hover {
    color: #ef4444;
    border-color: rgba(239, 68, 68, 0.4);
}