/* === Reset & Base === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background: #0d1117; color: #e6edf3; line-height: 1.5;
    -webkit-font-smoothing: antialiased; overflow-x: hidden;
}
a { color: #58a6ff; text-decoration: none; }
a:hover { text-decoration: underline; }
code { background: #1f2937; padding: 2px 6px; border-radius: 4px; font-size: 0.85em; }
.container { max-width: 960px; margin: 0 auto; padding: 0 16px; }
.hidden { display: none !important; }

/* === Language Toggle === */
.lang-toggle {
    position: fixed; top: 12px; right: 12px; z-index: 100;
    padding: 6px 14px; background: #161b22; border: 1px solid #30363d;
    border-radius: 20px; color: #8b949e; font-size: 0.8rem; font-weight: 600;
    cursor: pointer; transition: all 0.2s;
    -webkit-tap-highlight-color: transparent;
}
.lang-toggle:hover { border-color: #58a6ff; color: #58a6ff; }
.lang-toggle.active-ru { color: #58a6ff; border-color: #58a6ff; }

/* === Hero === */
.hero {
    padding: 40px 0 32px;
    background: linear-gradient(135deg, #0d1117 0%, #161b22 100%);
    border-bottom: 1px solid #30363d;
    min-height: 50vh; display: flex; align-items: center;
}
.hero__title {
    font-size: 1.75rem; font-weight: 800; text-align: center;
    background: linear-gradient(90deg, #58a6ff, #bc8cff);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero__sub {
    text-align: center; color: #8b949e; margin: 8px 0 24px; font-size: 0.95rem;
}

/* === Input Group === */
.input-group { max-width: 600px; margin: 0 auto; }
.input-tabs {
    display: flex; gap: 4px; margin-bottom: 12px;
    background: #161b22; border-radius: 8px; padding: 4px;
}
.tab {
    flex: 1; padding: 10px 8px; border: none; background: transparent;
    color: #8b949e; font-size: 0.85rem; font-weight: 600; border-radius: 6px;
    cursor: pointer; transition: all 0.2s; min-height: 44px;
    -webkit-tap-highlight-color: transparent;
}
.tab.active { background: #30363d; color: #e6edf3; }
.tab:hover:not(.active) { color: #c9d1d9; }

.tab-panel { display: none; }
.tab-panel.active { display: block; }

textarea, input[type="url"], input[type="text"] {
    width: 100%; padding: 12px; background: #161b22; border: 1px solid #30363d;
    border-radius: 8px; color: #e6edf3; font-size: 0.9rem; font-family: inherit;
    resize: vertical; transition: border-color 0.2s;
}
textarea:focus, input:focus { outline: none; border-color: #58a6ff; }
textarea { min-height: 120px; font-family: 'SF Mono', 'Fira Code', monospace; font-size: 0.8rem; }

.hint { color: #8b949e; font-size: 0.8rem; margin-top: 8px; }

/* File Drop */
.file-drop {
    display: flex; align-items: center; justify-content: center;
    min-height: 100px; border: 2px dashed #30363d; border-radius: 8px;
    cursor: pointer; transition: border-color 0.2s; padding: 16px;
}
.file-drop:hover, .file-drop.dragover { border-color: #58a6ff; }
.file-drop input { display: none; }
.file-drop__text { color: #8b949e; text-align: center; font-size: 0.9rem; }

/* Buttons */
.btn-analyze {
    width: 100%; padding: 14px; margin-top: 12px;
    background: linear-gradient(135deg, #238636, #2ea043); border: none;
    border-radius: 8px; color: #fff; font-size: 1rem; font-weight: 700;
    cursor: pointer; transition: transform 0.1s, box-shadow 0.2s;
    min-height: 48px; -webkit-tap-highlight-color: transparent;
}
.btn-analyze:hover { box-shadow: 0 4px 16px rgba(46, 160, 67, 0.3); }
.btn-analyze:active { transform: scale(0.98); }
.btn-analyze:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-analyze.loading { pointer-events: none; }
.btn-analyze.loading::after {
    content: ''; display: inline-block; width: 16px; height: 16px;
    border: 2px solid #fff; border-top-color: transparent; border-radius: 50%;
    animation: spin 0.6s linear infinite; margin-left: 8px; vertical-align: middle;
}
@keyframes spin { to { transform: rotate(360deg); } }

.btn-demo {
    width: 100%; padding: 10px; margin-top: 8px;
    background: transparent; border: 1px solid #30363d;
    border-radius: 8px; color: #8b949e; font-size: 0.85rem;
    cursor: pointer; min-height: 44px; transition: all 0.2s;
}
.btn-demo:hover { border-color: #58a6ff; color: #58a6ff; }

.btn-sm {
    padding: 6px 12px; background: #21262d; border: 1px solid #30363d;
    border-radius: 6px; color: #c9d1d9; font-size: 0.8rem; cursor: pointer;
    min-height: 36px; transition: all 0.15s;
}
.btn-sm:hover { background: #30363d; }

/* === Results === */
.results { padding: 24px 0 48px; }

/* === Aggregate Summary === */
.aggregate { margin-bottom: 24px; }
.agg-header {
    font-size: 1.3rem; font-weight: 800; margin-bottom: 16px;
    background: linear-gradient(90deg, #58a6ff, #bc8cff);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
.agg-metrics {
    display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px;
    margin-bottom: 16px;
}
@media (min-width: 600px) { .agg-metrics { grid-template-columns: repeat(4, 1fr); } }

.agg-table-wrap {
    overflow-x: auto; -webkit-overflow-scrolling: touch;
    margin-bottom: 16px;
}
.agg-table {
    width: 100%; border-collapse: collapse; font-size: 0.82rem;
}
.agg-table th {
    text-align: left; padding: 8px 10px; background: #161b22;
    border-bottom: 2px solid #30363d; color: #8b949e; font-weight: 600;
    white-space: nowrap; cursor: pointer; user-select: none;
}
.agg-table th:hover { color: #58a6ff; }
.agg-table td {
    padding: 8px 10px; border-bottom: 1px solid #21262d; white-space: nowrap;
}
.agg-table tr:hover td { background: rgba(88,166,255,0.05); }
.agg-table .val-good { color: #3fb950; }
.agg-table .val-warn { color: #d29922; }
.agg-table .val-bad { color: #f85149; }

.agg-recs {
    background: #161b22; border: 1px solid #30363d; border-radius: 10px;
    padding: 16px; margin-bottom: 16px;
}
.agg-recs__title {
    font-size: 1rem; font-weight: 700; margin-bottom: 12px;
    display: flex; align-items: center; gap: 8px;
}
.agg-rec-item {
    padding: 10px 12px; margin-bottom: 8px; border-radius: 8px;
    background: #0d1117; border-left: 3px solid #58a6ff; font-size: 0.85rem;
}
.agg-rec-item--critical { border-left-color: #f85149; }
.agg-rec-item--warning { border-left-color: #d29922; }
.agg-rec-item__title { font-weight: 700; color: #e6edf3; margin-bottom: 4px; }
.agg-rec-item__body { color: #8b949e; line-height: 1.4; }
.agg-rec-item__servers { margin-top: 4px; font-size: 0.8rem; color: #484f58; }

/* === Report Tabs === */
.report-tabs {
    display: flex; gap: 4px; margin-bottom: 20px; overflow-x: auto;
    background: #161b22; border-radius: 8px; padding: 4px;
    -webkit-overflow-scrolling: touch;
}
.report-tab {
    padding: 10px 16px; border: none; background: transparent;
    color: #8b949e; font-size: 0.82rem; font-weight: 600; border-radius: 6px;
    cursor: pointer; transition: all 0.2s; white-space: nowrap;
    min-height: 40px; -webkit-tap-highlight-color: transparent;
}
.report-tab.active { background: #30363d; color: #e6edf3; }
.report-tab:hover:not(.active) { color: #c9d1d9; }
.report-tab .rt-health {
    display: inline-block; margin-left: 6px; font-size: 0.72rem;
    padding: 1px 6px; border-radius: 4px; font-weight: 700;
}
.rt-health--good { background: rgba(63,185,80,0.15); color: #3fb950; }
.rt-health--warn { background: rgba(210,153,34,0.15); color: #d29922; }
.rt-health--bad { background: rgba(248,81,73,0.15); color: #f85149; }

.report-container { display: none; }
.report-container.active { display: block; }

.section { margin-bottom: 32px; }
.section__title {
    font-size: 1.15rem; font-weight: 700; margin-bottom: 16px;
    padding-bottom: 8px; border-bottom: 1px solid #21262d;
    display: flex; align-items: center; gap: 8px;
}

/* === Metrics Grid === */
.metrics-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.metric-card {
    background: #161b22; border: 1px solid #30363d; border-radius: 10px;
    padding: 14px; text-align: center; transition: border-color 0.2s;
}
.metric-card:hover { border-color: #484f58; }
.metric-card__value { font-size: 1.4rem; font-weight: 800; line-height: 1.2; }
.metric-card__label { font-size: 0.75rem; color: #8b949e; margin-top: 4px; text-transform: uppercase; letter-spacing: 0.5px; }
.metric-card--good .metric-card__value { color: #3fb950; }
.metric-card--warn .metric-card__value { color: #d29922; }
.metric-card--bad .metric-card__value { color: #f85149; }
.metric-card--info .metric-card__value { color: #58a6ff; }

/* === Health Bar === */
.health-bar-wrap {
    display: flex; align-items: center; gap: 12px; margin-top: 16px;
    background: #161b22; border: 1px solid #30363d; border-radius: 10px; padding: 14px;
}
.health-label { font-size: 0.8rem; color: #8b949e; white-space: nowrap; }
.health-bar { flex: 1; height: 10px; background: #21262d; border-radius: 5px; overflow: hidden; }
.health-bar__fill { height: 100%; border-radius: 5px; transition: width 0.8s ease, background 0.3s; background: #3fb950; }
.health-score { font-size: 1.1rem; font-weight: 800; min-width: 45px; text-align: right; }

/* === Issues === */
.badge { background: #30363d; color: #e6edf3; font-size: 0.75rem; padding: 2px 8px; border-radius: 10px; font-weight: 600; }
.issue-card {
    background: #161b22; border: 1px solid #30363d; border-radius: 10px;
    padding: 14px; margin-bottom: 10px; border-left: 3px solid #30363d; transition: border-color 0.2s;
}
.issue-card--critical { border-left-color: #f85149; }
.issue-card--warning { border-left-color: #d29922; }
.issue-card--info { border-left-color: #58a6ff; }
.issue-card__header { display: flex; align-items: flex-start; gap: 8px; margin-bottom: 6px; }
.issue-card__severity {
    font-size: 0.7rem; font-weight: 700; padding: 2px 8px; border-radius: 4px;
    text-transform: uppercase; white-space: nowrap; flex-shrink: 0; margin-top: 2px;
}
.issue-card__severity--critical { background: rgba(248,81,73,0.15); color: #f85149; }
.issue-card__severity--warning { background: rgba(210,153,34,0.15); color: #d29922; }
.issue-card__severity--info { background: rgba(88,166,255,0.15); color: #58a6ff; }
.issue-card__title { font-weight: 700; font-size: 0.95rem; line-height: 1.3; }
.issue-card__body { color: #8b949e; font-size: 0.85rem; line-height: 1.5; }
.issue-card__body strong { color: #c9d1d9; }
.issue-card__metric {
    display: inline-flex; align-items: center; gap: 4px;
    background: #21262d; padding: 2px 8px; border-radius: 4px;
    font-size: 0.8rem; margin-top: 6px; font-family: 'SF Mono', monospace;
}
.issue-card__rec {
    margin-top: 8px; padding: 8px 12px; background: rgba(46,160,67,0.08);
    border-radius: 6px; font-size: 0.8rem; color: #3fb950; line-height: 1.4;
}

/* === Worlds Chart === */
.world-row { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; padding: 8px 12px; background: #161b22; border-radius: 8px; }
.world-row__name { min-width: 80px; max-width: 120px; font-size: 0.85rem; font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.world-row__bar-wrap { flex: 1; height: 20px; background: #21262d; border-radius: 4px; overflow: hidden; }
.world-row__bar { height: 100%; border-radius: 4px; transition: width 0.6s ease; background: linear-gradient(90deg, #58a6ff, #bc8cff); min-width: 2px; }
.world-row__value { min-width: 70px; text-align: right; font-size: 0.8rem; color: #8b949e; font-family: monospace; }

/* === Plugins === */
.plugin-row { display: flex; align-items: center; gap: 10px; margin-bottom: 6px; padding: 10px 12px; background: #161b22; border-radius: 8px; font-size: 0.85rem; }
.plugin-row__rank { width: 24px; height: 24px; display: flex; align-items: center; justify-content: center; background: #21262d; border-radius: 50%; font-size: 0.75rem; font-weight: 700; flex-shrink: 0; color: #8b949e; }
.plugin-row__name { flex: 1; font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.plugin-row__time { color: #8b949e; font-family: monospace; font-size: 0.8rem; white-space: nowrap; }
.plugin-row__pct { color: #d29922; font-weight: 700; font-size: 0.8rem; white-space: nowrap; min-width: 45px; text-align: right; }

/* === Tree View === */
.tree-controls { display: flex; gap: 8px; margin-bottom: 12px; flex-wrap: wrap; }
.tree-search { flex: 1; min-width: 120px; }
.tree-view {
    background: #161b22; border: 1px solid #30363d; border-radius: 10px;
    padding: 12px; overflow-x: auto; -webkit-overflow-scrolling: touch;
    font-family: 'SF Mono', 'Fira Code', monospace; font-size: 0.75rem;
    max-height: 70vh; overflow-y: auto; line-height: 1.6;
}
.tree-node { white-space: nowrap; }
.tree-node__toggle {
    display: inline-flex; align-items: center; justify-content: center;
    width: 20px; height: 20px; border: none; background: transparent;
    color: #484f58; cursor: pointer; font-size: 0.7rem; flex-shrink: 0;
    border-radius: 4px; transition: all 0.15s; vertical-align: middle;
    min-width: 20px; min-height: 20px;
}
.tree-node__toggle:hover { background: #30363d; color: #e6edf3; }
.tree-node__toggle.expanded { transform: rotate(90deg); }
.tree-node__toggle.leaf { visibility: hidden; }
.tree-node__name { color: #e6edf3; }
.tree-node__time { color: #3fb950; }
.tree-node__avg { color: #58a6ff; }
.tree-node__pct { color: #d29922; font-weight: 600; }
.tree-node__violations { color: #f85149; font-weight: 700; }
.tree-node__peak { color: #bc8cff; }
.tree-children { display: none; }
.tree-children.open { display: block; }
.tree-node.filtered-out { display: none; }
.tree-node.highlight .tree-node__name { background: rgba(210,153,34,0.2); border-radius: 3px; padding: 0 3px; }

/* === Footer === */
.footer { text-align: center; padding: 24px 16px; border-top: 1px solid #21262d; color: #484f58; font-size: 0.8rem; }
.footer__keywords { font-size: 0.65rem; color: #30363d; margin-top: 8px; }

/* === New Analysis === */
.new-analysis { text-align: center; margin: 32px 0; }
.new-analysis .btn-analyze { max-width: 300px; display: inline-block; }

/* === Error === */
.error-msg {
    background: rgba(248,81,73,0.1); border: 1px solid rgba(248,81,73,0.3);
    color: #f85149; padding: 12px 16px; border-radius: 8px; font-size: 0.9rem;
    margin-top: 12px; text-align: center;
}

/* === Responsive === */
@media (min-width: 600px) {
    .hero { padding: 60px 0 48px; }
    .hero__title { font-size: 2.2rem; }
    .hero__sub { font-size: 1.05rem; }
    .metrics-grid { grid-template-columns: repeat(4, 1fr); }
    .container { padding: 0 24px; }
    textarea { min-height: 150px; }
}
@media (min-width: 768px) {
    .hero__title { font-size: 2.6rem; }
    .world-row__name { min-width: 120px; max-width: 200px; }
}

/* === Touch === */
@media (hover: none) and (pointer: coarse) {
    .tab, .btn-sm, .tree-node__toggle, .report-tab { min-height: 44px; min-width: 44px; }
    .tree-node { padding: 4px 0; }
    .tree-view { font-size: 0.8rem; line-height: 1.8; }
}

/* === Safe area === */
@supports (padding: env(safe-area-inset-bottom)) {
    .footer { padding-bottom: calc(24px + env(safe-area-inset-bottom)); }
    .hero { padding-top: calc(40px + env(safe-area-inset-top)); }
}

/* === Reduced motion === */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

/* === Print === */
@media print {
    body { background: #fff; color: #000; }
    .hero, .footer, .tree-controls, .btn-analyze, .btn-demo, .new-analysis, .report-tabs, .lang-toggle { display: none; }
    .metric-card, .issue-card, .world-row, .plugin-row { border: 1px solid #ccc; background: #fff; }
    .results { display: block !important; }
    .report-container { display: block !important; }
}