:root {
    --bg-color: #f6f5f0;
    --panel-bg: rgba(255, 253, 247, 0.94);
    --text-color: #263128;
    --border-color: #d8d1c3;
    --input-bg: #fffdfa;
    --btn-bg: #eef0e4;
    --btn-hover: #e0e6d1;
    --scrollbar-bg: #ece8dc;
    --scrollbar-thumb: #b8b09f;
    --scrollbar-hover: #9e9685;
    --hr-color: #d8d1c3;
    --sub-text: #6c7366;
    --accent-color: #1f7a3a;
}

[data-theme="dark"] {
    --bg-color: #101512;
    --panel-bg: rgba(21, 28, 24, 0.9);
    --text-color: #eef3ea;
    --border-color: #344139;
    --input-bg: #16201a;
    --btn-bg: #223026;
    --btn-hover: #2c3c31;
    --scrollbar-bg: #18211b;
    --scrollbar-thumb: #4b5a50;
    --scrollbar-hover: #617267;
    --hr-color: #344139;
    --sub-text: #aab6ac;
    --accent-color: #7fc892;
}

html,
body {
    margin: 0;
    height: 100%;
    overflow: hidden;
    background-color: var(--bg-color);
}

body {
    color: var(--text-color);
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    transition: background-color 0.3s;
}

#app {
    width: 100%;
    height: 100%;
}

#app canvas {
    display: block;
}

#ui,
#advanced-ui,
#loading {
    background: var(--panel-bg);
    border: 1px solid var(--border-color);
    box-shadow: 0 16px 36px rgba(20, 22, 17, 0.18);
    backdrop-filter: blur(8px);
    transition: background 0.3s, border-color 0.3s, color 0.3s;
}

#ui,
#advanced-ui {
    position: absolute;
    top: 12px;
    z-index: 10;
    border-radius: 10px;
    padding: 12px 14px;
}

#ui {
    left: 12px;
    min-width: 260px;
    max-width: 320px;
}

#advanced-ui {
    right: 12px;
    width: 320px;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

#loading {
    position: absolute;
    top: 50%;
    left: 50%;
    z-index: 20;
    transform: translate(-50%, -50%);
    padding: 14px 18px;
    border-radius: 999px;
    font-size: 15px;
    font-weight: 600;
    color: var(--text-color);
}

#loading.is-hidden {
    display: none;
}

#loading.is-error {
    border-color: #bb6b62;
    color: #bb6b62;
}

.top-bar {
    display: flex;
    gap: 8px;
    margin-bottom: 8px;
}

.top-bar select {
    flex-grow: 1;
    margin-bottom: 0;
}

#theme-toggle {
    cursor: pointer;
    background: var(--btn-bg);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 0 10px;
    font-size: 16px;
    transition: background 0.2s, border-color 0.2s;
}

#theme-toggle:hover {
    background: var(--btn-hover);
}

select {
    width: 100%;
    padding: 5px 6px;
    border-radius: 4px;
    background: var(--input-bg);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    font-size: 13px;
    transition: background 0.3s, color 0.3s, border-color 0.3s;
}

hr {
    border: 0;
    border-top: 1px solid var(--hr-color);
    margin: 8px 0 10px;
    transition: border-color 0.3s;
}

.section-title {
    font-size: 11px;
    text-transform: uppercase;
    color: var(--sub-text);
    margin: 0 0 8px 0;
    letter-spacing: 0.5px;
    font-weight: 700;
}

.legend-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.legend-list label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 13px;
    color: var(--text-color);
    user-select: none;
}

input[type="checkbox"] {
    margin: 0;
    accent-color: var(--accent-color);
}

.repo-credit,
.meta-summary,
.empty-state,
.footer-note {
    font-size: 11px;
    color: var(--sub-text);
    line-height: 1.45;
}

.meta-summary {
    white-space: normal;
    overflow: visible;
    text-overflow: clip;
}

.meta-summary strong {
    color: var(--text-color);
    font-weight: 600;
}

.action-row {
    display: flex;
    gap: 6px;
}

.action-btn,
#adv-toggle {
    cursor: pointer;
    background: var(--btn-bg);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 13px;
    font-weight: 600;
    transition: background 0.2s, border-color 0.2s, color 0.2s;
}

.action-btn {
    flex: 1;
    padding: 6px 0;
}

.action-btn:hover,
#adv-toggle:hover {
    background: var(--btn-hover);
}

.action-btn.is-active {
    color: var(--accent-color);
    border-color: var(--accent-color);
}

#adv-toggle {
    text-align: center;
    padding: 7px 8px;
}

#adv-content {
    display: none;
    overflow-y: auto;
    padding-right: 5px;
}

#layer-controls {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.control-group {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 0;
    font-size: 12px;
}

.control-label {
    color: var(--text-color);
}

.sub-controls {
    display: flex;
    align-items: center;
    gap: 8px;
}

.sub-controls input[type="color"] {
    width: 24px;
    height: 24px;
    padding: 0;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    cursor: pointer;
    background: var(--input-bg);
}

.sub-controls input[type="range"] {
    width: 86px;
    cursor: pointer;
    accent-color: #888888;
}

.repo-credit {
    margin-top: auto;
    padding-top: 10px;
    border-top: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.credit-line {
    display: flex;
    gap: 4px;
    flex-wrap: nowrap;
    white-space: nowrap;
}

.repo-credit a {
    color: var(--accent-color);
    text-decoration: none;
}

.repo-credit a:hover {
    text-decoration: underline;
}

.footer-note code {
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: var(--scrollbar-bg);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: var(--scrollbar-thumb);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--scrollbar-hover);
}

@media (max-width: 980px) {
    #ui,
    #advanced-ui {
        left: 12px;
        right: 12px;
        width: auto;
        max-width: none;
    }

    #ui {
        top: 12px;
        min-width: 0;
    }

    #advanced-ui {
        top: auto;
        bottom: 12px;
        max-height: 42vh;
    }
}