:root {
    --primary-bg: #0a192f;
    --secondary-bg: #112240;
    --tertiary-bg: #232946;
    --text-color: #e6f1ff;
    --text-color-secondary: #bfc9e0;
    --accent-color: #64ffda;
    --accent-color-text: #0a192f;
    --button-bg: #1d3461;
    --button-active: #3a86ff;
    --range-btn-active-bg: #444b6e;
    --range-btn-hover-bg: #3a3f5a;
    --range-btn-text: #fff;
    --modal-overlay-bg: rgba(10, 25, 47, 0.7);
}

body[data-theme="light"] {
    --primary-bg: #f0f2f5;
    --secondary-bg: #ffffff;
    --tertiary-bg: #e4e6eb;
    --text-color: #1c1e21;
    --text-color-secondary: #65676b;
    --accent-color: #0062ff;
    --accent-color-text: #ffffff;
    --button-bg: #d0d2d6;
    --button-active: #0062ff;
    --range-btn-active-bg: #a9bcca;
    --range-btn-hover-bg: #c0d0e0;
    --range-btn-text: #1c1e21;
    --modal-overlay-bg: rgba(240, 242, 245, 0.7);
}

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

html, body {
    overflow: hidden;
    height: 100vh;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Gill Sans', sans-serif;
    background-color: var(--primary-bg);
    color: var(--text-color);
    width: 100vw;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
}

.container {
    flex: 1 1 auto;
    width: 100vw;
    max-width: 100vw;
    height: calc(100vh - 120px);
    overflow: visible;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
}

.graph-container {
    background-color: var(--secondary-bg);
    border-radius: 0;
    padding: 1rem 0;
    height: 50vh;
    min-height: 300px;
    margin-bottom: 0.7rem;
    width: 100%;
}

.controls-container {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.date-selector {
    display: flex;
    flex-direction: column;
    gap: 0.7rem;
    width: 100%;
    margin-bottom: 1.2rem;
}

.date-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.date-selector input[type="date"],
.date-selector input[type="time"] {
    width: 100%;
    min-width: 0;
    font-size: 1em;
    background: var(--tertiary-bg);
    color: var(--text-color);
    border: none;
    border-radius: 0.7rem;
    padding: 0.4em 0.7em;
    margin: 0.1em 0;
    box-shadow: none;
    outline: none;
    transition: background 0.2s, color 0.2s;
}

.date-selector input[type="date"]::-webkit-input-placeholder,
.date-selector input[type="time"]::-webkit-input-placeholder {
    color: var(--text-color-secondary);
    opacity: 0.7;
}

.date-selector input[type="date"]:focus,
.date-selector input[type="time"]:focus {
    background: var(--secondary-bg);
    color: var(--text-color);
}
.date-row label {
    color: var(--text-color-secondary);
    font-weight: 500;
}
.date-row input[type="date"] {
    flex-grow: 1;
}
.sensor-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
    padding: 1rem;
    background-color: var(--secondary-bg);
    border-radius: 1rem;
}

.sensor-btn {
    background-color: var(--button-bg);
    color: var(--text-color);
    border: none;
    padding: 0.75rem;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 3rem;
    height: 3rem;
    opacity: 0.3;
}

.sensor-btn.active {
    opacity: 1;
}

.sensor-btn.icon-btn {
    border-radius: 50%;
}

.sensor-btn:not(.icon-btn) {
    border-radius: 2rem;
    padding: 0.75rem 1.5rem;
}

.sensor-btn:hover {
    transform: scale(1.05);
}

@media (min-width: 768px) {
    .container {
        padding: 2rem;
    }

    .controls-container {
        flex-direction: row;
        align-items: flex-start;
    }

    .date-selector {
        flex: 1;
    }

    .sensor-buttons {
        flex: 2;
    }
}

.box {
    background: var(--tertiary-bg);
    border-radius: 1.2rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.07);
    padding: 0.7rem 0.5rem;
    margin-bottom: 0.7rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
}

.range-selector {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    max-width: 100%;
    gap: 0;
    margin-bottom: 0;
    margin-top: 0;
    position: static;
    padding: 0;
}

.range-btn {
    background: var(--tertiary-bg);
    color: var(--range-btn-text);
    border: none;
    border-radius: 1.2rem;
    padding: 0.25rem 0.7rem;
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    transition: background 0.2s, color 0.2s, opacity 0.2s;
    opacity: 0.8;
    min-width: 2.2rem;
    max-width: 3.2rem;
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin: 0 0.1rem;
}

.range-btn.active {
    background: var(--range-btn-active-bg);
    color: var(--range-btn-text);
    opacity: 1;
}

.range-btn:focus, .range-btn:hover {
    background: var(--range-btn-hover-bg);
    color: var(--range-btn-text);
    opacity: 1;
}

.range-separator {
    color: var(--text-color-secondary);
    opacity: 0.5;
    font-size: 1.2em;
    margin: 0 0.1em;
    user-select: none;
    display: flex;
    align-items: center;
    height: 1.5em;
}

@media (max-width: 600px) {
    .range-btn {
        font-size: 0.8rem;
        padding: 0.18rem 0.4rem;
    }
    .date-selector {
        gap: 0.3rem;
    }
    .time-input-group {
        gap: 0.2rem;
    }
}

.floating-controls {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    margin: 0 auto 1.2rem auto;
    width: 96vw;
    max-width: 600px;
    z-index: 1000;
    background: var(--tertiary-bg);
    border-radius: 1.2rem;
    box-shadow: 0 4px 24px rgba(0,0,0,0.18);
    padding: 1.1rem 1.2rem 1.2rem 1.2rem;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    transition: transform 0.3s cubic-bezier(.4,2,.6,1), opacity 0.3s;
    height: 40vh;
    max-height: 40vh;
    overflow-y: auto;
}

.floating-controls.hidden {
    transform: translateY(110%);
    opacity: 0;
    pointer-events: none;
}

.toggle-controls-btn {
    position: fixed;
    right: 2vw;
    bottom: calc(1.2rem + 64px);
    z-index: 1100;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--secondary-bg);
    color: var(--accent-color);
    border: none;
    box-shadow: 0 2px 8px rgba(0,0,0,0.18);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    cursor: pointer;
    transition: background 0.2s;
}

.toggle-controls-btn:active {
    background: var(--tertiary-bg);
}

.controls-section {
    margin-bottom: 1.1rem;
}

.controls-section:last-child {
    margin-bottom: 0;
}

.controls-title {
    color: var(--accent-color);
    font-size: 1.1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    margin-bottom: 0.7rem;
    letter-spacing: 0.02em;
}

.group-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.group-btn {
    position: relative; /* For positioning the edit button */
    background: var(--range-btn-hover-bg);
    color: var(--range-btn-text);
    border: 2px solid transparent;
    border-radius: 1.2rem;
    padding: 0.4rem 1rem;
    font-size: 1rem;
    font-weight: 500;
    margin: 0.2rem 0.2rem 0.2rem 0;
    opacity: 0.8;
    transition: all 0.2s;
}

.group-btn.active {
    background: var(--group-color, var(--accent-color));
    color: #fff;
    border-color: #fff;
    opacity: 1;
}

.group-btn:focus, .group-btn:hover {
    background: var(--group-color, var(--accent-color));
    color: #fff;
    opacity: 1;
}

.add-group-btn {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--accent-color);
    color: var(--accent-color-text);
    border: none;
    font-size: 1.3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background 0.2s;
}

.edit-group-btn {
    position: absolute;
    top: -6px;
    right: -6px;
    width: 24px;
    height: 24px;
    background: var(--accent-color);
    color: var(--accent-color-text);
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    cursor: pointer;
    opacity: 0; /* Hidden by default */
    transition: opacity 0.2s, transform 0.2s;
}

.add-group-btn:active {
    background: var(--range-btn-hover-bg);
    color: var(--accent-color);
}

.group-modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: var(--modal-overlay-bg);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.group-btn:hover .edit-group-btn {
    opacity: 1; /* Show on hover */
    transform: scale(1.1);
}

.group-modal {
    background: var(--tertiary-bg);
    border-radius: 1.2rem;
    padding: 2rem 1.5rem 1.5rem 1.5rem;
    box-shadow: 0 8px 32px rgba(0,0,0,0.25);
    min-width: 280px;
    max-width: 90vw;
    color: var(--text-color);
    display: flex;
    flex-direction: column;
    align-items: stretch;
}

.group-modal label {
    margin-top: 0.7rem;
    margin-bottom: 0.2rem;
    font-size: 1rem;
    color: var(--accent-color);
}

.group-modal input, .group-modal select, .group-modal textarea {
    background: var(--secondary-bg);
    color: var(--text-color);
    border: none;
    border-radius: 0.7rem;
    padding: 0.5em 0.8em;
    margin-bottom: 0.7em;
    font-size: 1em;
}

.group-modal .modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 0.7rem;
    margin-top: 1rem;
}

.group-modal .modal-actions button {
    background: var(--accent-color);
    color: var(--accent-color-text);
    border: none;
    border-radius: 0.7rem;
    padding: 0.5em 1.2em;
    font-size: 1em;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}

.group-modal .modal-actions .delete-btn {
    background: #e03131;
    color: white;
    border: none;
    border-radius: 50%;
    width: 44px;
    height: 44px;
    padding: 0;
    font-size: 1em;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: auto; /* Pushes it to the far left */
    cursor: pointer;
    transition: background 0.2s;
}

.group-modal .modal-actions button:active {
    background: var(--range-btn-hover-bg);
    color: var(--accent-color);
}

@media (max-width: 600px) {
    .floating-controls {
        width: 99vw;
        max-width: 99vw;
        left: 0;
        right: 0;
        padding: 0.7rem 0.3rem 0.8rem 0.3rem;
    }
    .toggle-controls-btn {
        right: 2vw;
        bottom: calc(1.2rem + 48px);
        width: 40px;
        height: 40px;
        font-size: 1.5rem;
    }
}

.info-container {
    display: flex;
    width: 100%;
    padding: 0 0.5rem;
    margin-bottom: 0.7rem;
}

.info-box {
    flex: 1;
    background: var(--secondary-bg);
    border-radius: 1.2rem;
    padding: 0.8rem 1rem;
}

.info-list {
    list-style: none;
    padding: 0;
    margin: 0;
    max-height: 15vh;
    overflow-y: auto;
}

.info-list li {
    display: grid;
    grid-template-columns: 1fr auto auto; /* #1 name | #2 live | #3 min-max */
    padding: 0.3rem 0;
    align-items: center;
    font-size: 0.9rem;
    color: var(--text-color-secondary);
}

.info-list .sensor-info {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    min-width: 0; /* Crucial for text-overflow to work in flexbox */
}

.info-list .sensor-toggle-btn {
    /* Reset button styles */
    border: none;
    background: none;
    padding: 0;
    margin: 0;
    cursor: pointer;
    line-height: 1;
}

.info-list .sensor-toggle-btn i {
    font-size: 1.6em;
    transition: transform 0.2s ease-in-out, color 0.2s ease-in-out;
    vertical-align: middle;
}
.info-list .sensor-name-text {
    font-weight: 500;
    color: var(--text-color);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.info-list .sensor-toggle-btn:hover i {
    transform: scale(1.1);
}

.info-list li.is-hidden .sensor-toggle-btn i {
    color: var(--text-color-secondary) !important; /* Override inline style for the off state */
}

.info-list li.is-hidden .live-temp,
.info-list li.is-hidden .temp-values {
    visibility: hidden;
}
.info-list .temp-values {
    display: flex;
    gap: 0.6rem;
    flex-shrink: 0;
}

.info-list .min-temp, .info-list .max-temp {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
}

.info-list .min-temp { color: #3a86ff; }
.info-list .max-temp { color: #ff006e; }
body[data-theme="light"] .info-list .min-temp { color: #0052cc; }
body[data-theme="light"] .info-list .max-temp { color: #f6511d; }

.info-list .live-temp {
    font-weight: bold;
    margin: 0 1.5rem; /* Add space on both sides to create gaps */
}

@media (max-width: 600px) {
    .info-list {
        font-size: 0.85rem;
    }
    .info-list li {
        /* Grid handles spacing via margins on children now */
    }
    .info-box {
        padding: 0.7rem 0.5rem;
    }
    .info-list .live-temp {
        margin: 0 3rem;
    }
    .info-list .temp-values {
        gap: 0.4rem;
    }
}