:root {
    --gg-bg: #0d0f0e;
    --gg-bg-top: #151719;
    --gg-surface: #1f1f21;
    --gg-border: #3a3a3c;
    --gg-text: #aeaeae;
    --gg-text-muted: #686a69;
    --gg-accent: #0067ac;
    --gg-accent-soft: #0b2538;
    --gg-error-bg: #381a1a;
    --gg-error-text: #ff9a9a;
    --gg-success-bg: #183222;
    --gg-success-text: #8de1b1;
    --gg-shadow: rgba(0, 0, 0, 0.28);
    --gg-icon-bg: #0a0a0a;
    --gg-control-bg: #151618;
    --gg-list-bg: #17181a;
    --gg-nav-bg: #1a1b1d;
    --gg-stat-number: #d5efff;
    --gg-notice-error-border: #5b2c2c;
    --gg-notice-success-border: #2d5a42;
    --gg-track-bg: #121315;
}

html[data-theme='light'] {
    --gg-bg: #f4f8fb;
    --gg-bg-top: #ffffff;
    --gg-surface: #ffffff;
    --gg-border: #d0dde6;
    --gg-text: #21313d;
    --gg-text-muted: #5b7483;
    --gg-accent: #0067ac;
    --gg-accent-soft: #e5f2fb;
    --gg-error-bg: #fdeeee;
    --gg-error-text: #9a2c2c;
    --gg-success-bg: #edf9f2;
    --gg-success-text: #17623d;
    --gg-shadow: rgba(0, 28, 56, 0.10);
    --gg-icon-bg: #f3f8fc;
    --gg-control-bg: #f8fbfd;
    --gg-list-bg: #f8fbfd;
    --gg-nav-bg: #f8fbfd;
    --gg-stat-number: #005d99;
    --gg-notice-error-border: #f2c7c7;
    --gg-notice-success-border: #b9e4cc;
    --gg-track-bg: #f2f7fa;
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Helvetica Neue', sans-serif;
    background: radial-gradient(circle at top, var(--gg-bg-top) 0%, var(--gg-bg) 40%);
    color: var(--gg-text);
    min-height: 100vh;
}

a {
    color: var(--gg-accent);
}

.site-shell {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.card {
    background: var(--gg-surface);
    border: 1px solid var(--gg-border);
    border-radius: 12px;
    box-shadow: 0 6px 18px var(--gg-shadow);
}

.site-header {
    padding: 20px;
    margin-bottom: 18px;
}

.brand-row {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 14px;
}

.brand-icon {
    width: 48px;
    height: 48px;
    border-radius: 10px;
    border: 1px solid var(--gg-border);
    background: var(--gg-icon-bg);
    object-fit: contain;
}

.site-title {
    margin: 0;
    color: var(--gg-text);
    font-size: 1.6rem;
}

.site-subtitle {
    margin: 4px 0 0;
    color: var(--gg-text-muted);
    font-size: 0.9rem;
}

.main-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
}

.nav-link {
    display: inline-flex;
    align-items: center;
    padding: 9px 14px;
    min-height: 42px;
    box-sizing: border-box;
    border-radius: 8px;
    border: 1px solid var(--gg-border);
    text-decoration: none;
    font-weight: 600;
    line-height: 1.2;
    color: var(--gg-text);
    background: var(--gg-nav-bg);
}

.nav-link:hover {
    border-color: var(--gg-accent);
}

.nav-link.active {
    background: var(--gg-accent-soft);
    border-color: var(--gg-accent);
    color: #c5e8ff;
}

.main-content {
    display: grid;
    gap: 16px;
}

.section {
    padding: 18px;
}

.section.no-padding {
    padding: 0;
    overflow: hidden;
}

.section h2 {
    margin: 0 0 10px;
    color: var(--gg-text);
}

.section p {
    margin: 0 0 10px;
    color: var(--gg-text-muted);
    line-height: 1.5;
}

.section ol {
    margin: 0;
    padding-left: 22px;
    color: var(--gg-text-muted);
    line-height: 1.6;
}

.section li {
    margin-bottom: 8px;
}

.play-badge {
    max-width: 220px;
    width: 100%;
    height: auto;
    display: block;
}

.troubleshooting-thumb {
    width: min(8.1em, 130px);
    max-width: 100%;
    height: auto;
    display: block;
    margin: 10px 0 14px;
    border: 1px solid var(--gg-border);
    border-radius: 8px;
}

.android-url-thumb {
    width: min(5.4em, 86px);
    max-width: 100%;
    height: auto;
    display: block;
    margin: 10px 0 14px;
    border: 1px solid var(--gg-border);
    border-radius: 8px;
}

.android-url-row {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    flex-wrap: wrap;
}

.android-url-row a {
    flex: 0 0 auto;
}

.language-switch {
    margin: 0;
    font-size: 1rem;
}

.language-switch a {
    text-decoration: none;
    font-weight: 600;
}

.grid-2 {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 16px;
}

@media (max-width: 850px) {
    .grid-2 {
        grid-template-columns: 1fr;
    }
}

.form-row {
    display: flex;
    gap: 10px;
}

.input,
.button {
    font-size: 0.95rem;
    border-radius: 8px;
    border: 1px solid var(--gg-border);
    padding: 10px 12px;
}

.input {
    flex: 1;
    background: var(--gg-control-bg);
    color: var(--gg-text);
}

.input:focus {
    outline: none;
    border-color: #ffffff;
}

.input:invalid,
.input:user-invalid,
.input:-moz-ui-invalid {
    box-shadow: none;
    border-color: var(--gg-border);
}

.button {
    cursor: pointer;
    background: var(--gg-accent);
    color: #fff;
    font-weight: 700;
}

.list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.list-item {
    margin-bottom: 8px;
}

.list-link {
    display: block;
    text-decoration: none;
    color: var(--gg-text);
    font-family: 'Courier New', Courier, monospace;
    background: var(--gg-list-bg);
    border: 1px solid var(--gg-border);
    border-radius: 8px;
    padding: 10px;
}

.session-line-main {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.session-line-meta {
    display: block;
    margin-top: 6px;
    font-size: 0.78rem;
    color: var(--gg-text-muted);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Helvetica Neue', sans-serif;
}

.status-pill {
    display: inline-flex;
    align-items: center;
    border-radius: 999px;
    padding: 2px 8px;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.02em;
    border: 1px solid transparent;
}

.status-pill-active {
    color: var(--gg-success-text);
    background: var(--gg-success-bg);
    border-color: var(--gg-notice-success-border);
}

.status-pill-idle {
    color: var(--gg-text-muted);
    background: var(--gg-control-bg);
    border-color: var(--gg-border);
}

.list-link:hover,
.list-link.active {
    border-color: var(--gg-accent);
    background: var(--gg-accent-soft);
}

.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 10px;
}

.stat-box {
    background: var(--gg-control-bg);
    border: 1px solid var(--gg-border);
    border-radius: 8px;
    padding: 12px;
    text-align: center;
}

.stat-number {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gg-stat-number);
}

.stat-label {
    margin-top: 4px;
    color: var(--gg-text-muted);
    font-size: 0.82rem;
}

.notice {
    border: 1px solid;
    border-radius: 8px;
    padding: 12px;
    margin-bottom: 12px;
}

.notice.error {
    background: var(--gg-error-bg);
    border-color: var(--gg-notice-error-border);
    color: var(--gg-error-text);
}

.notice.success {
    background: var(--gg-success-bg);
    border-color: var(--gg-notice-success-border);
    color: var(--gg-success-text);
}

.user-card {
    border: 1px solid var(--gg-border);
    border-left: 4px solid var(--gg-accent);
    border-radius: 8px;
    background: var(--gg-list-bg);
    padding: 12px;
    margin-bottom: 10px;
}

.user-title {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 0 0 10px;
    font-size: 0.96rem;
}

.color-swatch {
    width: 18px;
    height: 18px;
    border-radius: 4px;
    border: 1px solid var(--gg-border);
}

.kv {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: 8px;
    font-size: 0.85rem;
    margin-bottom: 6px;
    font-family: 'Courier New', Courier, monospace;
}

.kv-key {
    color: var(--gg-text-muted);
}

.kv-value {
    text-align: right;
    word-break: break-all;
}

.tracking-box {
    margin-top: 12px;
    padding-top: 10px;
    border-top: 1px solid var(--gg-border);
}

.tracking-point {
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.75rem;
    background: var(--gg-track-bg);
    border: 1px solid var(--gg-border);
    border-left: 3px solid var(--gg-accent);
    border-radius: 6px;
    padding: 5px 7px;
    margin-bottom: 5px;
}

.screenshot-placeholder {
    border: 1px dashed var(--gg-border);
    border-radius: 10px;
    background: var(--gg-control-bg);
    color: var(--gg-text-muted);
    text-align: center;
    padding: 32px 14px;
}

.screenshots-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 12px;
}

.screenshot-link {
    display: block;
}

.screenshot-image {
    width: 100%;
    height: auto;
    display: block;
    border: 1px solid var(--gg-border);
    border-radius: 10px;
}

.theme-toggle {
    margin-left: auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
    border: 1px solid var(--gg-border);
    background: var(--gg-nav-bg);
    color: var(--gg-text);
    border-radius: 8px;
    padding: 9px 14px;
    min-height: 42px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    line-height: 1.2;
    font-family: inherit;
    appearance: none;
    -webkit-appearance: none;
}

.theme-toggle.with-language-switch {
    margin-left: 0;
}

.language-switch-link {
    margin-left: auto;
    width: 42px;
    padding: 0;
    justify-content: center;
    font-size: 1rem;
    font-weight: 400;
    line-height: 1;
}

.theme-toggle:hover {
    border-color: var(--gg-accent);
}

.theme-toggle [id^="theme-icon"] {
    display: block;
    line-height: 1;
}

.theme-toggle-floating {
    position: fixed;
    top: 12px;
    right: 12px;
    z-index: 10;
}

.map-frame {
    width: 100%;
    min-height: 440px;
    border: 1px solid var(--gg-border);
    border-radius: 10px;
    overflow: hidden;
}

.map-frame-full {
    margin: 0;
    border: 0;
    border-radius: inherit;
    min-height: 560px;
}