:root {
    /* Material Design 3 Design Tokens */

    /* Primary / Foundation */
    /* Primary / Foundation */
    --m3-font-main: 'Roboto', 'Inter', system-ui, -apple-system, sans-serif;

    /* Surfaces */
    --m3-surface: #f4f7fa;
    --m3-surface-container-low: #f7f2f2;
    --m3-surface-container: #f1eded;
    --m3-surface-container-high: #ebe7e7;
    --m3-surface-container-highest: #e5e1e1;
    --m3-surface-variant: #e7e0e0;

    /* Text / On-Surfaces */
    --m3-on-surface: #1c1b1b;
    --m3-on-surface-variant: #49454f;
    --m3-outline: #79747e;
    --m3-outline-variant: #c4c7c5;

    /* Semantic */
    --m3-error: #ba1a1a;
    --m3-on-error: #ffffff;
    --m3-success: #10b981;

    /* Elevation / Shadows */
    --m3-elevation-1: 0 1px 2px 0 rgba(0, 0, 0, 0.3), 0 1px 3px 1px rgba(0, 0, 0, 0.15);
    --m3-elevation-2: 0 1px 2px 0 rgba(0, 0, 0, 0.3), 0 2px 6px 2px rgba(0, 0, 0, 0.15);
    --m3-elevation-3: 0 1px 3px 0 rgba(0, 0, 0, 0.3), 0 4px 8px 3px rgba(0, 0, 0, 0.15);

    /* Motion */
    --m3-motion-short: 200ms cubic-bezier(0.05, 0.7, 0.1, 1.0);
    --m3-motion-medium: 400ms cubic-bezier(0.05, 0.7, 0.1, 1.0);

    /* Shape */
    --m3-shape-small: 8px;
    --m3-shape-medium: 12px;
    --m3-shape-large: 16px;
    --m3-shape-extra-large: 28px;
    --m3-shape-full: 1000px;

    /* Theme-specific Colors (User provided) */
    --color-cool: #3b82f6;
    --color-cool-container: #dce4ff;
    --color-on-cool-container: #00174c;

    --color-heat: #f97316;
    --color-heat-container: #ffdbcc;
    --color-on-heat-container: #331200;

    --color-auto: #06b6d4;
    --color-auto-container: #cffafe;
    --color-on-auto-container: #083344;

    --color-off: #697c85;
    --color-off-container: #e2e8f0;
    --color-on-off-container: #1e293b;
}

/* Global Reset/Base */
* {
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

body {
    margin: 0;
    background-color: var(--m3-surface);
    color: var(--m3-on-surface);
    font-family: var(--m3-font-main);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

/* Base typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    margin: 0;
    font-weight: 500;
}

h1 {
    font-size: 2rem;
    letter-spacing: -0.02em;
}

h2 {
    font-size: 1.5rem;
}

h3 {
    font-size: 1.25rem;
}

a {
    color: inherit;
    text-decoration: none;
}

/* Material Icons Round Shim for Legacy Views */
.material-icons {
    font-family: 'Material Icons Round';
    font-weight: normal;
    font-style: normal;
    font-size: 24px;
    display: inline-block;
    line-height: 1;
    text-transform: none;
    letter-spacing: normal;
    word-wrap: normal;
    white-space: nowrap;
    direction: ltr;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    -moz-osx-font-smoothing: grayscale;
    font-feature-settings: 'liga';
}

/* Material 3 Navigation Styles */

/* Top App Bar (Fixed Full-Width) */
.m3-top-app-bar {
    height: 64px;
    background-color: var(--m3-surface);
    color: var(--m3-on-surface);
    display: flex;
    align-items: center;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 5000;
    border-bottom: 1px solid var(--m3-outline-variant);
    box-shadow: var(--m3-elevation-1);
    transition: all var(--m3-motion-short);
}

.m3-top-app-bar-container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.m3-top-app-bar-start {
    display: flex;
    align-items: center;
    gap: 8px;
}

.m3-top-app-bar-title {
    font-size: 1.125rem;
    font-weight: 500;
}

.m3-top-app-bar-end {
    position: relative;
}

/* Icon Button */
.m3-icon-button {
    width: 48px;
    height: 48px;
    border-radius: var(--m3-shape-full);
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    color: var(--m3-on-surface);
    cursor: pointer;
    transition: background-color var(--m3-motion-short);
}

.m3-icon-button:hover {
    background-color: var(--m3-surface-variant);
}

/* Profile Menu */
.m3-menu {
    position: absolute;
    top: 56px;
    right: 0;
    background-color: var(--m3-surface-container-high);
    box-shadow: var(--m3-elevation-3);
    border-radius: var(--m3-shape-large);
    min-width: 180px;
    display: none;
    flex-direction: column;
    padding: 8px 0;
    z-index: 5001;
}

.m3-menu.show {
    display: flex;
}

.m3-menu-item {
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    transition: background-color var(--m3-motion-short);
}

.m3-menu-item:hover {
    background-color: var(--m3-surface-container-highest);
}

.m3-menu-item span {
    font-size: 0.875rem;
}

.m3-menu-divider {
    height: 1px;
    background-color: var(--m3-outline-variant);
    margin: 4px 0;
}

/* Navigation Drawer */
.m3-drawer-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.4);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--m3-motion-medium);
    z-index: 5010;
}

.m3-drawer-backdrop.show {
    opacity: 1;
    visibility: visible;
}

.m3-navigation-drawer {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: 320px;
    max-width: 80%;
    background-color: var(--m3-surface-container-low);
    z-index: 5020;
    transform: translateX(-100%);
    transition: transform var(--m3-motion-medium);
    border-radius: 0 28px 28px 0;
    /* Standard M3 Drawer shape */
    display: flex;
    flex-direction: column;
}

.m3-navigation-drawer.show {
    transform: translateX(0);
}

.m3-drawer-header {
    padding: 24px 28px;
}

.m3-drawer-title {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--m3-on-surface-variant);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.m3-drawer-content {
    flex: 1;
    padding: 0 12px;
}

.m3-drawer-item {
    height: 56px;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 0 16px;
    text-decoration: none;
    color: var(--m3-on-surface-variant);
    border-radius: var(--m3-shape-full);
    margin-bottom: 4px;
    transition: background-color var(--m3-motion-short), color var(--m3-motion-short);
}

.m3-drawer-item .material-icons-round {
    font-size: 24px;
}

.m3-drawer-item-label {
    font-size: 0.875rem;
    font-weight: 500;
}

.m3-drawer-item.active {
    background-color: var(--m3-surface-variant);
    color: var(--m3-on-surface);
}

.m3-drawer-item:hover:not(.active) {
    background-color: var(--m3-surface-container-highest);
}

.m3-drawer-divider {
    height: 1px;
    background-color: var(--m3-outline-variant);
    margin: 16px 12px;
}

/* Remove Duplicate Reset */

/* --- Auth Layout (Centered) --- */
.auth-layout {
    min-height: 100vh;
    font-family: var(--m3-font-main);
    background-color: var(--m3-surface);
    color: var(--m3-on-surface);
    display: flex;
    align-items: center;
    justify-content: center;
}

main.main {
    width: 100%;
    max-width: 900px;
    padding: 24px;
}

.auth-container {
    width: 100%;
}

.card {
    background: var(--m3-surface-container-low);
    border-radius: var(--m3-shape-extra-large);
    box-shadow: var(--m3-elevation-3);
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    min-height: 560px;
    overflow: hidden;
    border: none;
}

.card-left {
    padding: 60px 44px;
    background: var(--m3-surface-container);
    display: flex;
    flex-direction: column;
    justify-content: center;
    border-right: 1px solid var(--m3-outline-variant);
}

.brand {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--m3-on-surface);
    text-decoration: none;
    letter-spacing: -0.015em;
    margin-bottom: 12px;
}

.card-left p {
    font-size: 1rem;
    color: var(--m3-on-surface-variant);
    line-height: 1.5;
    margin-bottom: 40px;
}

.secondary {
    display: inline-flex;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-cool);
    text-decoration: none;
    border: 1.5px solid var(--color-cool);
    padding: 10px 24px;
    border-radius: 40px;
    width: fit-content;
    transition: all 0.2s ease;
}

.secondary:hover {
    background: var(--color-cool);
    color: #fff;
}

.card-right {
    padding: 60px 52px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.form-wrapper {
    width: 100%;
    max-width: 360px;
    margin: 0 auto;
}

h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 32px;
    letter-spacing: -0.01em;
}

.form-field {
    margin-bottom: 20px;
}

label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--text-muted);
}

input[type="email"],
input[type="password"],
input[type="text"] {
    width: 100%;
    height: 52px;
    padding: 0 16px;
    background: var(--m3-surface);
    border: 1px solid var(--m3-outline-variant);
    border-radius: var(--m3-shape-medium);
    font-size: 1rem;
    color: var(--m3-on-surface);
    transition: all 0.2s ease;
}

input:focus {
    outline: none;
    border-color: var(--color-cool);
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.12);
}

.input-group {
    position: relative;
    display: flex;
    align-items: center;
}

.input-group button {
    position: absolute;
    right: 16px;
    background: none;
    border: none;
    color: var(--m3-on-surface-variant);
    cursor: pointer;
}

.row-between {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin: 24px 0 32px;
}

.remember {
    display: flex;
    align-items: center;
    gap: 10px;
}

.remember input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--color-cool);
    cursor: pointer;
}

.remember label {
    margin-bottom: 0;
    color: var(--m3-on-surface);
    font-weight: 400;
    font-size: 0.9rem;
}

.row-between a {
    font-size: 0.9rem;
    color: var(--color-cool);
    text-decoration: none;
    font-weight: 400;
}

.primary {
    width: 100%;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-cool);
    color: #ffffff;
    border: none;
    border-radius: 40px;
    font-size: 1.05rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    text-align: center;
    transition: all 0.2s ease;
}

.primary:hover {
    background: #2563eb;
    transform: scale(1.01);
}

.primary:active {
    transform: scale(0.98);
}

.privacy-note {
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--m3-outline-variant);
    font-size: 0.85rem;
    color: var(--m3-on-surface-variant);
    line-height: 1.6;
    text-align: center;
}

.privacy-note b {
    color: var(--m3-on-surface);
    font-weight: 600;
    display: block;
    margin-bottom: 4px;
}

@media (max-width: 900px) {
    main.main {
        padding: 16px;
    }

    .card {
        grid-template-columns: 1fr;
        min-height: auto;
        border: none;
        box-shadow: none;
        background: transparent;
    }

    .card-left {
        background: transparent;
        border-right: none;
        padding: 48px 0 24px;
        text-align: center;
        display: flex;
        flex-direction: column;
        align-items: center;
        order: -1;
    }

    .card-left p {
        display: block;
        margin-bottom: 24px;
        font-size: 1.1rem;
        padding: 0 20px;
    }

    .card-right {
        background: var(--m3-surface-container-low);
        border-radius: var(--m3-shape-extra-large);
        padding: 40px 24px;
        box-shadow: var(--m3-elevation-3);
    }

    .row-between {
        flex-direction: column;
        gap: 20px;
        align-items: center;
    }

    .primary {
        border-radius: 14px;
        /* Slightly less rounded on mobile form */
    }
}

/* --- App Layout & Responsiveness --- */
.app-layout {
    padding-top: 0 !important;
    margin: 0 !important;
}

#app {
    width: 100%;
    min-height: 100vh;
    padding-top: 64px;
    /* Space for Fixed Top App Bar */
    position: relative;
    transition: padding 300ms;
}

/* --- Transitions --- */
.view {
    position: absolute;
    top: 64px;
    /* Align with Fixed Top App Bar */
    left: 0;
    right: 0;
    min-height: calc(100vh - 64px);
    transition: opacity var(--m3-motion-medium), transform var(--m3-motion-medium);
    background: var(--m3-surface);
    opacity: 1;
    z-index: 1;
}

.hidden {
    display: none;
    opacity: 0;
    z-index: 0;
    transform: translateY(10px);
}

/* --- Dashboard --- */
.main-header {
    padding: 32px 24px 16px;
}

.main-header h1 {
    font-size: 2.5rem;
    font-weight: 400;
    color: var(--m3-on-surface);
    letter-spacing: -0.02em;
    margin: 0;
}

.subtitle {
    font-size: 0.875rem;
    color: var(--m3-on-surface-variant);
    font-weight: 500;
    margin-top: 4px;
}

/* Grid Layout */
.card-grid {
    padding: 16px 16px 100px;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 16px;
}

/* --- Material 3 Device Card (Elevated) --- */
.device-card {
    background-color: var(--m3-surface-container-low);
    border-radius: var(--m3-shape-extra-large);
    padding: 24px;
    position: relative;
    overflow: hidden;
    cursor: pointer;
    transition: background-color var(--m3-motion-short), box-shadow var(--m3-motion-short), transform var(--m3-motion-short);
    box-shadow: var(--m3-elevation-1);
    border: none;
}

.device-card:hover {
    background-color: var(--m3-surface-container);
    box-shadow: var(--m3-elevation-2);
    transform: translateY(-2px);
}

.device-card:active {
    background-color: var(--m3-surface-container-high);
    transform: scale(0.98);
}

/* Card Themes using Container Colors */
.theme-cool {
    background-color: var(--color-cool-container);
    color: var(--color-on-cool-container);
}

.theme-heat {
    background-color: var(--color-heat-container);
    color: var(--color-on-heat-container);
}

.theme-auto {
    background-color: var(--color-auto-container);
    color: var(--color-on-auto-container);
}

.theme-off {
    background-color: var(--color-off-container);
    color: var(--color-on-off-container);
}

.device-card.theme-cool:hover {
    background-color: #ced9ff;
}

.device-card.theme-heat:hover {
    background-color: #ffd0bb;
}

.device-card.theme-auto:hover {
    background-color: #bdf6fc;
}

.device-card.theme-off:hover {
    background-color: #d1d9e2;
}

/* Card Content */
.card-content {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

/* Typography Overrides for Cards */
.theme-cool .device-name,
.theme-cool .temp-indoor,
.theme-cool .temp-target-val,
.theme-heat .device-name,
.theme-heat .temp-indoor,
.theme-heat .temp-target-val,
.theme-auto .device-name,
.theme-auto .temp-indoor,
.theme-auto .temp-target-val,
.theme-off .device-name,
.theme-off .temp-indoor,
.theme-off .temp-target-val {
    color: inherit;
}

.theme-cool .status-row,
.theme-cool .weather-pill,
.theme-cool .temp-target-label,
.theme-heat .status-row,
.theme-heat .weather-pill,
.theme-heat .temp-target-label,
.theme-auto .status-row,
.theme-auto .weather-pill,
.theme-auto .temp-target-label,
.theme-off .status-row,
.theme-off .weather-pill,
.theme-off .temp-target-label {
    opacity: 0.8;
    color: inherit;
}

/* ... (skip middle content) ... */

/* --- Dynamic Mode Styling (Edit View) --- */
.theme-cool-active .temp-readout-center {
    color: var(--color-cool);
}

.theme-heat-active .temp-readout-center {
    color: var(--color-heat);
}

.theme-auto-active .temp-readout-center {
    color: var(--color-auto) !important;
}

.theme-off-active .temp-readout-center {
    color: var(--color-off);
}

/* --- Alerts (M3) --- */
.m3-error-alert {
    display: none;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background-color: #fceeee;
    /* Very light error container */
    color: var(--m3-error);
    border-radius: var(--m3-shape-medium);
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 24px;
    border: 1px solid rgba(186, 26, 26, 0.2);
    animation: m3-fade-in var(--m3-motion-short);
}

.m3-success-alert {
    display: none;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background-color: #eafaf1;
    color: var(--m3-success);
    border-radius: var(--m3-shape-medium);
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 24px;
    border: 1px solid rgba(16, 185, 129, 0.2);
    animation: m3-fade-in var(--m3-motion-short);
}

@keyframes m3-fade-in {
    from {
        opacity: 0;
        transform: translateY(-4px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Apply colored segments ONLY to Mode and Fan selectors */
.theme-cool-active #mode-selector .segment-opt input:checked+.segment-label,
.theme-cool-active #fan-selector .segment-opt input:checked+.segment-label {
    color: var(--color-cool);
    background: var(--color-cool-soft);
}

.theme-heat-active #mode-selector .segment-opt input:checked+.segment-label,
.theme-heat-active #fan-selector .segment-opt input:checked+.segment-label {
    color: var(--color-heat);
    background: var(--color-heat-soft);
}

/* Auto - Indigo */
.theme-auto-active #mode-selector .segment-opt input:checked+.segment-label,
.theme-auto-active #fan-selector .segment-opt input:checked+.segment-label {
    color: var(--color-auto);
    background: var(--color-auto-soft);
    box-shadow: none;
    /* remove gradient shadow */
}

/* Off - Darker Gray */
.theme-off-active #mode-selector .segment-opt input:checked+.segment-label,
.theme-off-active #fan-selector .segment-opt input:checked+.segment-label {
    color: var(--color-off);
    background: var(--color-off-soft);
}

/* Card Content (z-index above splash) */
.card-content {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* Card Top: Name & Status */
.card-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.device-name {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 4px;
}

.status-row {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #d1d5db;
}

.status-dot.online {
    background-color: var(--m3-success);
}

.weather-pill {
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(5px);
    padding: 6px 10px;
    border-radius: 12px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 4px;
}

/* Card Main: Temps */
.card-main {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
}

.temp-group-main h3 {
    margin: 0;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    margin-bottom: 4px;
}

.temp-indoor {
    font-size: 52px;
    font-weight: 500;
    line-height: 0.9;
    letter-spacing: -2px;
    color: var(--text-main);
}

.temp-target-wrapper {
    text-align: right;
}

.temp-target-label {
    font-size: 11px;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    margin-bottom: 2px;
}

.temp-target-val {
    font-size: 28px;
    font-weight: 700;
}

/* Card Bottom: Badges & Dots */
.card-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 10px;
}

/* Badge Row */
.badge-row {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.badge {
    padding: 6px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 700;
    text-transform: capitalize;
    background: white;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 6px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.03);
}

/* Switch Mini Dots (Bottom Right) */
.switch-mini-row {
    display: flex;
    gap: 6px;
    align-items: center;
}

.mini-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #e5e7eb;
    position: relative;
    cursor: help;
}

.dot-active-g {
    background: #16a34a;
}

.dot-active-w {
    background: var(--color-heat);
}

.dot-active-y {
    background: var(--color-cool);
}

.dot-active-tr {
    background: #ef4444;
}

/* Tooltip implementation */
.mini-dot[data-tooltip]:hover::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 12px;
    right: 0;
    background: #333;
    color: white;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 11px;
    white-space: nowrap;
    z-index: 10;
    pointer-events: none;
}

/* --- Edit View (M3 Surface) --- */
.edit-container {
    height: 100vh;
    display: flex;
    flex-direction: column;
    background-color: var(--m3-surface);
}

.edit-navbar {
    height: 64px;
    padding: 0 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--m3-outline-variant);
}

.nav-title {
    text-align: center;
    flex: 1;
}

.nav-title span {
    display: block;
    font-weight: 500;
    font-size: 1.125rem;
}

.nav-subtitle {
    font-size: 0.75rem;
    color: var(--m3-on-surface-variant);
}

.icon-btn {
    width: 48px;
    height: 48px;
    border-radius: var(--m3-shape-full);
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    cursor: pointer;
    color: var(--m3-on-surface);
    transition: background-color var(--m3-motion-short);
}

.icon-btn:hover {
    background-color: var(--m3-surface-variant);
}

.edit-content-scroll {
    padding: 24px 16px 120px;
    overflow-y: auto;
    max-width: 600px;
    margin: 0 auto;
    width: 100%;
    scrollbar-width: none;
    /* Firefox */
    -ms-overflow-style: none;
    /* IE and Edge */
}

.edit-content-scroll::-webkit-scrollbar {
    display: none;
    /* Chrome, Safari, Opera */
}

/* Slider Section (M3 Style) */
.slider-section {
    text-align: center;
    margin-bottom: 32px;
    padding: 32px 16px;
    background-color: var(--m3-surface-container-low);
    border-radius: var(--m3-shape-extra-large);
}

.temp-readout-center {
    font-size: 5rem;
    font-weight: 400;
    color: var(--m3-on-surface);
    letter-spacing: -0.02em;
}

.degree {
    font-size: 2rem;
    vertical-align: top;
    color: var(--m3-on-surface-variant);
    margin-left: 4px;
}

.helper-text {
    font-size: 0.875rem;
    color: var(--m3-on-surface-variant);
    font-weight: 500;
    margin-top: 8px;
}

.slider-wrapper {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-top: 24px;
}

.track-holder {
    flex: 1;
}

/* M3 Range Slider */
.range-slider {
    width: 100%;
    height: 4px;
    border-radius: 2px;
    background: var(--m3-outline-variant);
    outline: none;
    appearance: none;
    -webkit-appearance: none;
}

.range-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--m3-on-surface);
    box-shadow: var(--m3-elevation-1);
    cursor: pointer;
    transition: transform var(--m3-motion-short);
}

.range-slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

/* Controls (M3 Segmented Buttons) */
.control-group {
    margin-bottom: 24px;
}

.control-group label {
    display: block;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--m3-on-surface-variant);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 12px;
    padding-left: 4px;
}

.admin-lock-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 8px;
    background-color: var(--m3-surface-variant);
    color: var(--m3-on-surface-variant);
    border-radius: var(--m3-shape-small);
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.segmented-control {
    display: flex;
    border: 1px solid var(--m3-outline);
    border-radius: var(--m3-shape-full);
    overflow: hidden;
    height: 40px;
}

.segment-opt {
    flex: 1;
    position: relative;
    border-right: 1px solid var(--m3-outline);
}

.segment-opt:last-child {
    border-right: none;
}

.segment-opt input {
    position: absolute;
    width: 100%;
    height: 100%;
    opacity: 0;
    z-index: 2;
    cursor: pointer;
}

.segment-label {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--m3-on-surface);
    transition: background-color var(--m3-motion-short), color var(--m3-motion-short);
}

.segment-opt input:checked+.segment-label {
    background-color: var(--m3-surface-variant);
    color: var(--m3-on-surface-variant);
}

/* Dynamic Mode Styling overrides for M3 */
.theme-cool-active .segment-opt input:checked+.segment-label {
    background-color: var(--color-cool-container);
    color: var(--color-on-cool-container);
}

.theme-heat-active .segment-opt input:checked+.segment-label {
    background-color: var(--color-heat-container);
    color: var(--color-on-heat-container);
}

.theme-auto-active .segment-opt input:checked+.segment-label {
    background-color: var(--color-auto-container);
    color: var(--color-on-auto-container);
}

.theme-off-active .segment-opt input:checked+.segment-label {
    background-color: var(--color-off-container);
    color: var(--color-on-off-container);
}

.theme-cool-active .temp-readout-center {
    color: var(--color-cool);
}

.theme-heat-active .temp-readout-center {
    color: var(--color-heat);
}

.theme-auto-active .temp-readout-center {
    color: var(--color-auto);
}

.theme-off-active .temp-readout-center {
    color: var(--color-off);
}

/* Micro Switch Row */
.micro-switch-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.micro-badge {
    padding: 6px 16px;
    border-radius: var(--m3-shape-small);
    background: var(--m3-surface-container);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--m3-on-surface-variant);
}

.micro-badge.active-g {
    background: #dcfce7;
    color: #16a34a;
}

.micro-badge.active-w {
    background: var(--color-heat-container);
    color: var(--color-on-heat-container);
}

.micro-badge.active-y {
    background: var(--color-cool-container);
    color: var(--color-on-cool-container);
}

/* M3 FAB Save Button */
.fab-save {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 56px;
    /* Standard M3 FAB size */
    height: 56px;
    border-radius: 16px;
    /* M3 FAB shape */
    background-color: var(--m3-surface-container-highest);
    color: var(--m3-on-surface);
    border: none;
    box-shadow: var(--m3-elevation-3);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 1000;
    transition: transform var(--m3-motion-short), box-shadow var(--m3-motion-short), background-color var(--m3-motion-short);
}

.fab-save:hover {
    background-color: var(--m3-surface-container-high);
    box-shadow: var(--m3-elevation-4, 0 8px 12px 6px rgba(0, 0, 0, 0.15));
}

.fab-save:active {
    transform: scale(0.95);
}

/* Action Button Outline (M3 Outlined Button style) */
.action-btn-outline {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: transparent;
    border: 1px solid var(--m3-outline);
    color: var(--m3-on-surface);
    height: 40px;
    padding: 0 24px;
    border-radius: var(--m3-shape-full);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color var(--m3-motion-short);
}

.action-btn-outline:hover {
    background-color: var(--m3-surface-variant);
}

.action-btn-outline .material-icons-round {
    font-size: 18px;
}

/* Sensor Stats (Subtle) */
.manual-sensor-row {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 24px;
    margin-top: 16px;
}

.ms-item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.ms-label {
    font-size: 0.625rem;
    font-weight: 600;
    color: var(--m3-on-surface-variant);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.ms-val {
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--m3-on-surface);
}

.ms-divider {
    width: 1px;
    height: 24px;
    background: var(--m3-outline-variant);
}

/* Scheduler View Consolidations */
#scheduler-view {
    z-index: 300;
    height: 100vh;
}

#scheduler-view .edit-container {
    height: auto;
    min-height: 100vh;
    background-color: var(--m3-surface);
}

/* --- Generic M3 Content Card (Non-Interactive) --- */
.content-card {
    background-color: var(--m3-surface-container-low);
    border-radius: var(--m3-shape-extra-large);
    padding: 24px;
    box-shadow: var(--m3-elevation-1);
    border: none;
    margin-bottom: 24px;
}

.content-card .card-header {
    margin-bottom: 24px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--m3-outline-variant);
}

.content-card h2 {
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--m3-on-surface);
}

/* --- M3 Form Elements (Standardized) --- */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--m3-on-surface-variant);
}

.form-input {
    width: 100%;
    height: 52px;
    padding: 0 16px;
    background: var(--m3-surface);
    border: 1px solid var(--m3-outline-variant);
    border-radius: var(--m3-shape-medium);
    font-size: 1rem;
    color: var(--m3-on-surface);
    transition: all 0.2s ease;
}

.form-input:focus {
    outline: none;
    border-color: var(--color-cool);
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.12);
}

/* Primary Button (Standard) */
.btn-primary {
    width: 100%;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-cool);
    color: #ffffff;
    border: none;
    border-radius: 40px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.2s ease;
}

.btn-primary:hover {
    background: #2563eb;
    transform: scale(1.01);
}

.btn-primary:active {
    transform: scale(0.98);
}

.msg-error {
    color: var(--m3-error);
    font-size: 0.875rem;
    margin-bottom: 16px;
    display: none;
}

.msg-success {
    color: var(--m3-success);
    font-size: 0.875rem;
    margin-bottom: 16px;
    display: none;
}

/* M3 Scheduler Styles */

#scheduler-app-frame {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background-color: var(--m3-surface);
    width: 100%;
    max-width: 440px;
    /* Matching .edit-content-scroll */
    margin: 0 auto;
}

.day-nav {
    display: flex;
    justify-content: space-between;
    /* Perfect fit-to-width */
    padding: 12px 12px;
    background: var(--m3-surface-container-low);
    scrollbar-width: none;
    width: 100%;
    box-sizing: border-box;
}

.day-nav::-webkit-scrollbar {
    display: none;
}

.day-chip {
    padding: 8px 4px;
    border-radius: var(--m3-shape-small);
    background: var(--m3-surface-container-high);
    border: none;
    color: var(--m3-on-surface);
    font-size: 0.7rem;
    font-weight: 700;
    white-space: nowrap;
    cursor: pointer;
    transition: background-color var(--m3-motion-short);
    flex: 1;
    /* Stretch all 7 chips equally */
    margin: 0 2px;
    text-align: center;
}

.day-chip:hover {
    background: var(--m3-surface-container-highest);
}

#main-scroll {
    flex: 1;
    overflow-y: auto;
    padding: 0 16px 24px;
    scrollbar-width: none;
    /* Firefox */
    -ms-overflow-style: none;
    /* IE and Edge */
}

#main-scroll::-webkit-scrollbar {
    display: none;
    /* Chrome, Safari, Opera */
}

.day-block {
    margin-bottom: 0;
    position: relative;
    padding-top: 0;
    /* Clean transition handled by the 5px day-label separator */
}

.day-block:first-child {
    border-top: none;
    padding-top: 0;
}

.day-label-handle {
    position: relative;
    height: 48px;
    /* Exact match to setpoint height */
    margin: 48px 0 24px;
    z-index: 10;
}

/* Day labels 1:1 mirror interactive handles */
.day-label-handle .handle-line {
    position: absolute;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--m3-outline-variant);
    top: 50%;
    transform: translateY(-50%);
}

.day-label-handle .handle-card {
    background: white;
    box-shadow: var(--m3-elevation-2);
    border: 1px solid var(--m3-outline-variant);
    pointer-events: none;
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    height: 48px;
    left: 65px;
    /* Alignment with track start */
    display: flex;
    align-items: center;
    padding: 0 16px;
    border-radius: var(--m3-shape-medium);
}

.day-label-handle .h-mode-label {
    font-size: 0.75rem;
    font-weight: 900;
    letter-spacing: 1.5px;
    color: var(--m3-on-surface);
}

.day-label::after {
    content: '';
    flex: 1;
    height: 2px;
    background: var(--m3-outline-variant);
    opacity: 0.3;
}

.timeline-wrapper {
    position: relative;
    height: 480px;
    width: 100%;
    margin-bottom: 0;
}

.ruler {
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 50px;
    border-right: 1px solid var(--m3-outline-variant);
}

.hour-mark {
    position: absolute;
    right: 8px;
    font-size: 0.625rem;
    color: var(--m3-on-surface-variant);
    transform: translateY(-50%);
}



.track {
    position: absolute;
    left: 60px;
    right: 16px;
    top: 0;
    bottom: 0;
    background: var(--m3-surface-container-low);
    border-radius: var(--m3-shape-small);
    overflow: hidden;
    pointer-events: none;
    /* Let clicks pass to handle-layer */
}

.handle-layer {
    position: absolute;
    left: 0;
    right: 16px;
    top: 0;
    bottom: 0;
    pointer-events: none;
    z-index: 5;
}

.handle-card.pos-down {
    top: 10px;
    transform: none;
    /* Reset centering when pushed below */
}

.zone {
    position: absolute;
    left: 0;
    right: 0;
    opacity: 1;
    border-radius: 0;
    /* Ensures gapless flow between segments */
    transition: background 0.3s;
}

.handle {
    position: absolute;
    left: 0;
    right: 0;
    height: 48px;
    /* Hit area for dragging */
    margin-top: -24px;
    /* Center hit area on time line */
    background: transparent;
    /* No container background */
    z-index: 20;
    cursor: ns-resize;
    touch-action: none;
}

.handle-line {
    position: absolute;
    left: 0;
    right: 0;
    height: 1px;
    background: rgba(0, 0, 0, 0.15);
    /* Continuous tracker line to the ruler */
    top: 50%;
    /* Center the 1px line within the 48px handle hit area */
}

.handle-card {
    position: absolute;
    left: 60px;
    top: 50%;
    transform: translateY(-50%);
    border-radius: 12px;
    pointer-events: auto;
    cursor: ns-resize;
    color: var(--m3-on-surface);
    width: calc(100% - 60px);
    height: 48px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 16px;
    background: transparent;
    /* Flowing background band provides color */
}

.h-card-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.h-mode-label {
    font-size: 0.75rem;
    font-weight: 700;
}

.h-time {
    font-size: 0.625rem;
    opacity: 0.8;
}

.h-temp {
    font-size: 1.125rem;
    font-weight: 500;
}

.edit-trigger {
    background: var(--m3-surface-variant);
    border: none;
    border-radius: var(--m3-shape-small);
    padding: 4px 12px;
    font-size: 0.625rem;
    font-weight: 700;
    cursor: pointer;
    pointer-events: auto;
    color: var(--m3-on-surface-variant);
}

/* Modal Editor */
#editor-bg {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.4);
    display: none;
    z-index: 1000;
}

#editor-bg.active {
    display: block;
}

#editor {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--m3-surface-container);
    border-radius: 28px 28px 0 0;
    transform: translateY(100%);
    transition: transform var(--m3-motion-medium);
    z-index: 1001;
    padding-bottom: 40px;
}

#editor.active {
    transform: translateY(0);
}

.mode-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    padding: 16px;
}

.mode-opt {
    background: var(--m3-surface-container-low);
    border: 1px solid var(--m3-outline-variant);
    border-radius: var(--m3-shape-medium);
    padding: 12px;
    text-align: center;
    font-size: 0.75rem;
    font-weight: 500;
    opacity: 0.4;
    cursor: default;
    transition: 0.2s;
}

.mode-opt.allowed {
    opacity: 1;
    cursor: pointer;
}

.mode-opt.selected {
    background: var(--m3-surface-variant);
    border-color: var(--m3-outline);
    box-shadow: var(--m3-elevation-1);
}

.stepper {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 32px;
    margin: 24px 0;
}

.step-btn {
    width: 56px;
    height: 56px;
    border-radius: var(--m3-shape-full);
    border: 1px solid var(--m3-outline);
    background: transparent;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

.temp-big {
    font-size: 4rem;
    font-weight: 400;
}