:root {
    --bg: #f7f9fc;
    --bg-gradient-start: #f7f9fc;
    --bg-gradient-end: #eef2f7;
    --card: #ffffff;
    --muted: #6b7280;
    --text: #1f2937;
    --accent: #2563eb;
    --accent-hover: #1d4ed8;
    --ring: rgba(37, 99, 235, .25);
    --border: #e5e7eb;
    --badge-bg: #f3f4f6;
    --success: #10b981;
    --chart-firefox: #ff6b35;
    --chart-fenix: #4ecdc4;
    --skeleton-base: #e5e7eb;
    --skeleton-shine: #f3f4f6;
}

[data-theme="dark"] {
    --bg: #111827;
    --bg-gradient-start: #111827;
    --bg-gradient-end: #1f2937;
    --card: #1f2937;
    --muted: #9ca3af;
    --text: #f9fafb;
    --accent: #60a5fa;
    --accent-hover: #3b82f6;
    --ring: rgba(96, 165, 250, .25);
    --border: #374151;
    --badge-bg: #374151;
    --success: #34d399;
    --chart-firefox: #ff8566;
    --chart-fenix: #6ee7de;
    --skeleton-base: #374151;
    --skeleton-shine: #4b5563;
}

html,
body {
    height: 100%;
}

body {
    margin: 0;
    font: 16px/1.5 system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, "Helvetica Neue", Arial, "Apple Color Emoji", "Segoe UI Emoji";
    color: var(--text);
    background: linear-gradient(180deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
    transition: background 0.3s ease, color 0.3s ease;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 28px 16px 48px;
}

.title {
    font-weight: 700;
    letter-spacing: .2px;
    font-size: clamp(20px, 3vw, 26px);
    margin: 4px 0 12px;
}

.sub {
    color: var(--muted);
    margin: 0 0 22px;
}

.field {
    display: grid;
    gap: 6px;
}

label {
    font-size: 13px;
    color: var(--muted);
}

input[type="text"] {
    appearance: none;
    background: var(--card);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 10px 12px;
    outline: none;
    width: 100%;
    max-width: 400px;
    font-size: 14px;
}

select {
    appearance: none;
    background: var(--card);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 8px 12px;
    outline: none;
    cursor: pointer;
}

input[type="text"]:focus,
select:focus {
    box-shadow: 0 0 0 4px var(--ring);
    border-color: var(--accent);
}

.search-wrapper {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

select#localeSelect {
    width: 100%;
    max-width: 400px;
    overflow-y: auto;
}

select#localeSelect[multiple] {
    cursor: default;
}

select#localeSelect:not([multiple]) option:checked {
    background: var(--accent);
    color: white;
}

.compare-mode {
    margin-top: 12px;
    font-size: 14px;
}

.compare-mode label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    color: var(--text);
}

.compare-mode input[type="checkbox"] {
    width: 16px;
    height: 16px;
    cursor: pointer;
}

.selected-locales {
    margin-top: 12px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.locale-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--badge-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 6px 10px;
    font-size: 13px;
    color: var(--text);
}

.locale-tag .remove {
    cursor: pointer;
    color: var(--muted);
    font-weight: bold;
    transition: color 0.2s;
}

.locale-tag .remove:hover {
    color: #dc2626;
}

.intro {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
}

.intro-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.badge {
    display: inline-flex;
    gap: 6px;
    align-items: center;
    border: 1px solid var(--border);
    padding: 6px 10px;
    border-radius: 999px;
    color: var(--muted);
    font-size: 12px;
    background: var(--badge-bg);
}

.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 18px;
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.06);
    transition: background 0.3s ease, border-color 0.3s ease;
}

.chart-wrap {
    position: relative;
    height: 460px;
}

.footer {
    color: var(--muted);
    font-size: 12px;
    margin-top: 28px;
}

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

a:hover {
    text-decoration: underline;
}

.loading {
    font-size: 14px;
    color: var(--muted);
}

.error {
    color: #b91c1c;
    font-weight: 600;
}

/* New Components */
.icon-btn {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 8px 12px;
    cursor: pointer;
    font-size: 18px;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.icon-btn:hover {
    background: var(--badge-bg);
    transform: scale(1.05);
}

.btn {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 8px 14px;
    cursor: pointer;
    font-size: 14px;
    color: var(--text);
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
}

.btn:hover {
    background: var(--accent);
    color: white;
    border-color: var(--accent);
}

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

.btn-small {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 6px 10px;
    cursor: pointer;
    font-size: 12px;
    color: var(--text);
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    white-space: nowrap;
}

.btn-small:hover {
    background: var(--accent);
    color: white;
    border-color: var(--accent);
}

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

.action-buttons {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.locale-count {
    font-size: 11px;
    color: var(--muted);
    font-weight: normal;
}

.controls {
    display: block;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 16px;
}

.stat-item {
    text-align: center;
    padding: 12px;
    background: var(--bg);
    border-radius: 12px;
}

.stat-label {
    font-size: 12px;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 6px;
}

.stat-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--text);
}

.stat-value.complete {
    color: var(--success);
}

/* Loading skeleton */
.skeleton {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        90deg,
        var(--skeleton-base) 0%,
        var(--skeleton-shine) 50%,
        var(--skeleton-base) 100%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: 8px;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.skeleton.show {
    opacity: 1;
}

@keyframes shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* Improved chart wrapper */
.chart-wrap {
    position: relative;
    height: 460px;
}

.chart-wrap canvas {
    position: relative;
    z-index: 1;
}

@media (max-width: 768px) {
    .chart-wrap {
        height: 380px;
    }

    .intro-actions {
        flex-direction: row;
    }
}

@media (max-width: 640px) {
    .action-buttons {
        width: 100%;
    }

    .btn {
        flex: 1;
        justify-content: center;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}