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

:root {
  --bg: #f5f5f3;
  --surface: #ffffff;
  --border: rgba(0,0,0,0.10);
  --border-em: rgba(0,0,0,0.18);
  --text: #1a1a18;
  --text-secondary: #6b6b66;
  --text-tertiary: #9e9e98;
  --success: #1a7a4a;
  --success-bg: #eaf3de;
  --warning: #7a5200;
  --warning-bg: #faeeda;
  --danger: #a32d2d;
  --danger-bg: #fcebeb;
  --accent: #534AB7;
  --radius: 8px;
  --radius-lg: 12px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1a1a18;
    --surface: #242422;
    --border: rgba(255,255,255,0.10);
    --border-em: rgba(255,255,255,0.20);
    --text: #e8e8e2;
    --text-secondary: #9e9e98;
    --text-tertiary: #6b6b66;
    --success: #5DCAA5;
    --success-bg: #04342c;
    --warning: #EF9F27;
    --warning-bg: #412402;
    --danger: #F09595;
    --danger-bg: #501313;
    --accent: #AFA9EC;
  }
}

body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif; background: var(--bg); color: var(--text); font-size: 15px; line-height: 1.6; min-height: 100vh; }

.app-shell { display: flex; flex-direction: column; min-height: 100vh; }

.topbar { background: var(--surface); border-bottom: 0.5px solid var(--border); padding: 0 24px; height: 52px; display: flex; align-items: center; }
.topbar-inner { display: flex; align-items: center; gap: 12px; width: 100%; max-width: 1100px; margin: 0 auto; }
.logo { font-weight: 600; font-size: 15px; display: flex; align-items: center; gap: 8px; }
.logo .ti { font-size: 20px; color: var(--accent); }
.version { font-size: 11px; color: var(--text-tertiary); background: var(--bg); padding: 2px 8px; border-radius: 20px; border: 0.5px solid var(--border); }

.layout { display: grid; grid-template-columns: 1fr 300px; gap: 20px; max-width: 1100px; width: 100%; margin: 24px auto; padding: 0 24px 40px; align-items: start; }

@media (max-width: 720px) { .layout { grid-template-columns: 1fr; padding: 0 16px 32px; } }

.panel { display: flex; flex-direction: column; gap: 16px; }

.config-card { background: var(--surface); border: 0.5px solid var(--border); border-radius: var(--radius-lg); padding: 14px 16px; }

.section-label { font-size: 11px; font-weight: 600; color: var(--text-tertiary); text-transform: uppercase; letter-spacing: .07em; margin-bottom: 10px; display: block; }
.optional { font-weight: 400; text-transform: none; letter-spacing: 0; }

/* Drop zone */
.drop-zone { background: var(--surface); border: 1.5px dashed var(--border-em); border-radius: var(--radius-lg); padding: 40px 24px; text-align: center; cursor: pointer; transition: background .15s; }
.drop-zone:hover { background: var(--bg); }
.drop-zone input[type=file] { display: none; }
.drop-icon { font-size: 32px; color: var(--text-tertiary); margin-bottom: 12px; display: block; }
.drop-title { font-size: 15px; font-weight: 500; margin-bottom: 4px; }
.drop-sub { font-size: 13px; color: var(--text-secondary); margin-bottom: 16px; }

/* Preview */
.preview-wrap { background: var(--surface); border: 0.5px solid var(--border); border-radius: var(--radius-lg); padding: 16px; }
.preview-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.preview-img { width: 100%; border-radius: var(--radius); border: 0.5px solid var(--border); display: block; }
.run-btn { width: 100%; margin-top: 14px; justify-content: center; }

/* Loading */
.loading-wrap { background: var(--surface); border: 0.5px solid var(--border); border-radius: var(--radius-lg); padding: 40px; text-align: center; }
@keyframes spin { to { transform: rotate(360deg); } }
.loading-spinner { font-size: 32px; color: var(--text-tertiary); display: inline-block; animation: spin 1s linear infinite; }
.loading-msg { font-size: 13px; color: var(--text-secondary); margin-top: 12px; }

/* Results */
.results-wrap { display: flex; flex-direction: column; gap: 16px; }
.score-header { background: var(--surface); border: 0.5px solid var(--border); border-radius: var(--radius-lg); padding: 16px; display: flex; align-items: flex-start; gap: 16px; flex-wrap: wrap; }
.score-ring { width: 72px; height: 72px; flex-shrink: 0; }
.ring-bg { fill: none; stroke: var(--border-em); stroke-width: 6; }
.ring-fg { fill: none; stroke: var(--success); stroke-width: 6; stroke-linecap: round; transition: stroke-dashoffset 1s ease, stroke .5s; }
.ring-text { font-size: 16px; font-weight: 600; fill: var(--text); font-family: inherit; }
.score-meta { flex: 1; min-width: 0; }
.score-label { font-size: 12px; color: var(--text-secondary); margin-bottom: 6px; }
.score-summary { font-size: 13px; color: var(--text-secondary); margin-top: 6px; }
.score-actions { display: flex; flex-direction: column; gap: 6px; margin-left: auto; }
.tag-row { display: flex; flex-wrap: wrap; gap: 4px; }
.tag { display: inline-block; font-size: 11px; font-weight: 600; padding: 2px 10px; border-radius: 20px; }
.tag-pass { background: var(--success-bg); color: var(--success); }
.tag-warn { background: var(--warning-bg); color: var(--warning); }
.tag-fail { background: var(--danger-bg); color: var(--danger); }

.findings-card { background: var(--surface); border: 0.5px solid var(--border); border-radius: var(--radius-lg); padding: 14px 16px; }
.issue-row { display: flex; align-items: flex-start; gap: 10px; padding: 10px 0; border-bottom: 0.5px solid var(--border); }
.issue-row:last-child { border-bottom: none; }
.issue-icon { font-size: 16px; flex-shrink: 0; margin-top: 2px; }
.issue-icon.error { color: var(--danger); }
.issue-icon.warning { color: var(--warning); }
.issue-icon.pass { color: var(--success); }
.issue-title { font-size: 13px; font-weight: 500; margin-bottom: 2px; }
.issue-cat { font-size: 11px; color: var(--text-tertiary); margin-left: 6px; font-weight: 400; }
.issue-detail { font-size: 12px; color: var(--text-secondary); line-height: 1.5; }

/* Buttons */
.btn-primary { display: inline-flex; align-items: center; gap: 6px; padding: 8px 18px; background: var(--accent); color: #fff; border: none; border-radius: var(--radius); font-size: 14px; font-weight: 500; cursor: pointer; transition: opacity .15s; }
.btn-primary:hover { opacity: .88; }
.btn-ghost { display: inline-flex; align-items: center; gap: 6px; padding: 6px 12px; background: transparent; color: var(--text-secondary); border: 0.5px solid var(--border-em); border-radius: var(--radius); font-size: 13px; cursor: pointer; transition: background .15s; }
.btn-ghost:hover { background: var(--bg); }
.btn-icon { display: inline-flex; align-items: center; justify-content: center; width: 32px; height: 32px; background: transparent; border: 0.5px solid var(--border-em); border-radius: var(--radius); cursor: pointer; color: var(--text-secondary); transition: background .15s; flex-shrink: 0; }
.btn-icon:hover { background: var(--bg); }

/* Pills */
.pill-group { display: flex; flex-wrap: wrap; gap: 6px; }
.pill { padding: 4px 12px; border-radius: 20px; border: 0.5px solid var(--border-em); background: transparent; font-size: 12px; color: var(--text-secondary); cursor: pointer; transition: all .15s; }
.pill.active { background: var(--text); color: var(--surface); border-color: var(--text); }

/* Rules */
.rules-list { list-style: none; margin-bottom: 10px; }
.rules-list li { display: flex; align-items: center; gap: 8px; padding: 7px 0; border-bottom: 0.5px solid var(--border); font-size: 13px; }
.rules-list li:last-child { border-bottom: none; }
.rule-icon { font-size: 14px; color: var(--success); flex-shrink: 0; }
.rules-list li span { flex: 1; color: var(--text); }
.rule-remove { background: none; border: none; cursor: pointer; color: var(--text-tertiary); font-size: 14px; display: flex; align-items: center; padding: 2px; border-radius: 4px; }
.rule-remove:hover { color: var(--danger); background: var(--danger-bg); }
.rule-add-row { display: flex; gap: 6px; align-items: center; }
.rule-add-row input { flex: 1; padding: 6px 10px; border: 0.5px solid var(--border-em); border-radius: var(--radius); background: var(--bg); color: var(--text); font-size: 13px; font-family: inherit; }
.rule-add-row input:focus { outline: 2px solid var(--accent); outline-offset: 1px; }

textarea { width: 100%; padding: 8px 10px; border: 0.5px solid var(--border-em); border-radius: var(--radius); background: var(--bg); color: var(--text); font-size: 13px; font-family: inherit; line-height: 1.5; resize: vertical; }
textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; }

.hidden { display: none !important; }