:root {
  --bg: #2563eb;
  --surface: #ffffff;
  --muted: #6b7280;
  --border: #e5e7eb;
  --primary: #2563eb;
  --primary-600: #1d4ed8;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  color: #111827;
  background: #f7fafc;
}

.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 24px;
  background: var(--bg);
  color: #fff;
  box-shadow: 0 2px 6px rgba(0,0,0,.12);
}
.brand { display: flex; gap: 12px; align-items: center; }
.logo { font-size: 34px; }
.title { font-weight: 800; font-size: 20px; letter-spacing: .2px; }
.subtitle { font-size: 13px; opacity: .9; }
.chip { background: rgba(255,255,255,.15); color: #fff; border: 1px solid rgba(255,255,255,.25); border-radius: 20px; padding: 6px 12px; }

.tabs { display: flex; justify-content: space-between; gap: 0; padding: 12px; background: #f3f4f6; border: 1px solid var(--border); border-radius: 12px; margin: 16px auto 0; max-width: 1200px; box-shadow: inset 0 1px 0 rgba(255,255,255,.7); }
.tab { flex: 1 1 0; text-align: center; border: 0; padding: 12px 28px; background: transparent; cursor: pointer; color: #4b5563; font-weight: 600; box-sizing: border-box; display: inline-flex; align-items: center; justify-content: center; gap: 8px; }
.tab + .tab { border-left: 1px solid #e5e7eb; }
.tab:hover { background: rgba(255,255,255,.6); }
.tab.active { background: #ffffff; color: #111827; box-shadow: 0 1px 2px rgba(0,0,0,.06); border: 1px solid #0f172a; border-radius: 10px; }

/* Tab icons */
.tab-icon { font-size: 14px; opacity: .9; }

.content { padding: 36px 28px; max-width: 1200px; margin: 0 auto; }
.panel { display: none; }
.panel.visible { display: block; }

h1 { font-size: 36px; text-align: center; margin-top: 14px; }
.lead { color: var(--muted); max-width: 900px; text-align: center; margin: 6px auto 0; font-size: 17px; line-height: 1.55; }
.cards { display: grid; grid-template-columns: repeat(auto-fit,minmax(260px,1fr)); gap: 18px; margin-top: 18px; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 14px; padding: 18px; box-shadow: 0 1px 2px rgba(0,0,0,.04); }
.card p { color: var(--muted); }
.card h3 { margin-top: 0; }
.damage-row { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; margin-top: 16px; }
.damage-item { text-align: center; background: #fff; border: 1px solid var(--border); border-radius: 12px; padding: 8px; }
.damage-thumb { width: 100%; height: 90px; object-fit: cover; border-radius: 8px; border: 1px solid #eef2f7; }
.damage-label { margin-top: 6px; font-size: 12px; color: #374151; font-weight: 600; }
.cta { margin-top: 28px; text-align: center; }
.primary { background: var(--primary); color: #fff; border: 0; padding: 12px 22px; border-radius: 12px; cursor: pointer; font-weight: 700; font-size: 15px; }
.primary:hover { background: var(--primary-600); }
.secondary { background: #f3f4f6; border: 1px solid var(--border); padding: 8px 12px; border-radius: 8px; cursor: pointer; }
.center { text-align: center; margin-top: 12px; }

/* Key Capabilities */
.capabilities { margin-top: 22px; background: #f8fbff; border: 1px solid #e6edf9; border-radius: 14px; padding: 18px; box-shadow: 0 1px 2px rgba(0,0,0,.03); }
.cap-header { font-weight: 800; color: #1d4ed8; font-size: 18px; margin-bottom: 10px; }
.cap-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.cap-col { background: transparent; border: 0; border-radius: 0; padding: 0; }
.cap-list.two-col { columns: 2; -webkit-columns: 2; -moz-columns: 2; column-gap: 28px; padding-left: 18px; }
.cap-title { font-weight: 600; margin-bottom: 6px; }
.cap-list { margin: 0; padding-left: 18px; color: #334155; }
.cap-cta { text-align: center; margin-top: 14px; }

.dropzone {
  border: 2px dashed #cbd5e1;
  background: #f8fafc;
  min-height: 260px;
  border-radius: 16px;
  display: grid; place-items: center; gap: 6px; margin-top: 10px; cursor: pointer;
}
.dz-icon { font-size: 36px; }
.muted { color: var(--muted); font-size: 12px; }

.status { margin-top: 12px; font-size: 14px; color: var(--muted); }

.results-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-bottom: 12px; }
.results .image, .image { background: #fff; border: 1px solid var(--border); border-radius: 14px; padding: 12px; box-shadow: 0 1px 2px rgba(0,0,0,.04); }
.results-info { background: #fff; border: 1px solid var(--border); border-radius: 14px; padding: 12px; box-shadow: 0 1px 2px rgba(0,0,0,.04); margin-top: 14px; }
.pred { display: flex; justify-content: space-between; border-bottom: 1px dashed #eee; padding: 6px 0; }
.caption { font-size: 12px; color: var(--muted); margin-bottom: 6px; }
.pill { display: inline-block; padding: 6px 10px; background: #eef2ff; color: #1d4ed8; border: 1px solid #c7d2fe; border-radius: 999px; margin: 4px 6px 0 0; }

/* Analysis Meta */
.analysis-meta { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 10px; margin-top: 10px; }
.meta-card { background: #ffffff; border: 1px solid var(--border); border-radius: 12px; padding: 12px; }
.meta-label { font-size: 12px; color: var(--muted); margin-bottom: 4px; }
.meta-value { font-weight: 600; }

/* History */
.history { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 14px; }
.history-card { background: #fff; border: 1px solid var(--border); border-radius: 14px; padding: 10px; box-shadow: 0 1px 2px rgba(0,0,0,.04); cursor: pointer; transition: box-shadow .15s ease; }
.history-card:hover { box-shadow: 0 2px 6px rgba(0,0,0,.08); }
.history-thumb { width: 100%; height: 150px; object-fit: cover; border-radius: 10px; border: 1px solid #eef2f7; }
.history-meta { margin-top: 8px; font-size: 12px; color: var(--muted); display: flex; justify-content: space-between; gap: 8px; }

@media (max-width: 800px){
  .results-grid { grid-template-columns: 1fr; }
  .damage-row { grid-template-columns: repeat(3, 1fr); }
}