:root {
  --bg: #0b0f17;
  --bg-soft: #111726;
  --card: #141b2d;
  --card-2: #182036;
  --border: #232d47;
  --text: #e8ecf6;
  --muted: #8b94ab;
  --accent: #4f8cff;
  --accent-2: #22d3a5;
  --gold: #ffb84d;
  --red: #ff5d5d;
  --radius: 14px;
}

* { box-sizing: border-box; }
html { color-scheme: dark; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background:
    radial-gradient(1200px 500px at 70% -10%, rgba(79, 140, 255, 0.14), transparent 60%),
    radial-gradient(900px 400px at 10% 0%, rgba(34, 211, 165, 0.10), transparent 55%),
    var(--bg);
  color: var(--text);
  line-height: 1.55;
}

.wrap { max-width: 880px; margin: 0 auto; padding: 0 20px; }

.top {
  border-bottom: 1px solid var(--border);
  background: rgba(11, 15, 23, 0.7);
  backdrop-filter: blur(10px);
  position: sticky; top: 0; z-index: 10;
}
.top .wrap { display: flex; align-items: center; gap: 14px; padding: 14px 20px; }
.logo { font-weight: 800; font-size: 20px; color: var(--text); text-decoration: none; letter-spacing: -0.02em; }
.logo span { color: var(--muted); font-weight: 500; font-size: 13px; margin-left: 4px; }
.tag {
  font-size: 12px; color: var(--accent-2); border: 1px solid rgba(34, 211, 165, 0.35);
  padding: 3px 10px; border-radius: 999px; background: rgba(34, 211, 165, 0.08);
}

.hero { padding: 64px 0 28px; text-align: center; }
.hero h1 { font-size: clamp(30px, 5.5vw, 46px); margin: 0 0 14px; letter-spacing: -0.03em; line-height: 1.15; }
.hero h1 em { font-style: normal; background: linear-gradient(90deg, var(--accent), var(--accent-2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.sub { color: var(--muted); font-size: 17px; max-width: 620px; margin: 0 auto 30px; }
.sub b { color: var(--text); }

.scan-box { display: flex; gap: 10px; max-width: 680px; margin: 0 auto; }
.scan-box input {
  flex: 1; padding: 15px 18px; font-size: 15px; color: var(--text);
  background: var(--bg-soft); border: 1px solid var(--border); border-radius: 12px; outline: none;
  transition: border-color 0.15s;
  min-width: 0;
}
.scan-box input:focus { border-color: var(--accent); }
.scan-box button {
  padding: 15px 24px; font-size: 15px; font-weight: 700; color: #fff; cursor: pointer;
  background: linear-gradient(135deg, var(--accent), #3b6fd9);
  border: none; border-radius: 12px; white-space: nowrap;
  transition: transform 0.1s, opacity 0.15s;
}
.scan-box button:hover { opacity: 0.92; }
.scan-box button:active { transform: scale(0.98); }
.scan-box button:disabled { opacity: 0.5; cursor: wait; }

.err { color: var(--red); font-size: 14px; margin-top: 10px; }
.samples { margin-top: 16px; display: flex; gap: 8px; align-items: center; justify-content: center; flex-wrap: wrap; color: var(--muted); font-size: 13px; }
.samples button {
  background: var(--bg-soft); color: var(--muted); border: 1px solid var(--border);
  padding: 6px 12px; border-radius: 999px; font-size: 13px; cursor: pointer; transition: all 0.15s;
}
.samples button:hover { color: var(--text); border-color: var(--accent); }

.card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px;
}

.progress { margin-top: 26px; }
.progress-head { display: flex; gap: 14px; align-items: center; margin-bottom: 16px; }
.spinner {
  width: 26px; height: 26px; border-radius: 50%;
  border: 3px solid var(--border); border-top-color: var(--accent);
  animation: spin 0.8s linear infinite; flex-shrink: 0;
}
@keyframes spin { to { transform: rotate(360deg); } }
.progress-title { font-weight: 700; font-size: 16px; }
.progress-sub { color: var(--muted); font-size: 13px; }

.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.steps li {
  font-size: 12.5px; color: var(--muted); padding: 9px 10px; border-radius: 9px;
  background: var(--bg-soft); border: 1px solid transparent; text-align: center; transition: all 0.25s;
}
.steps li.active { color: var(--text); border-color: var(--accent); background: rgba(79, 140, 255, 0.1); }
.steps li.done { color: var(--accent-2); }
.steps li.done::after { content: " ✓"; }

.error-card { margin-top: 26px; border-color: rgba(255, 93, 93, 0.4); }
.err-title { font-weight: 700; color: var(--red); margin-bottom: 6px; }
.err-body { color: var(--muted); font-size: 14px; margin-bottom: 14px; }
button.ghost {
  background: transparent; border: 1px solid var(--border); color: var(--text);
  padding: 9px 18px; border-radius: 10px; cursor: pointer; font-size: 14px;
}
button.ghost:hover { border-color: var(--accent); }

.source-card { margin-top: 28px; display: flex; gap: 18px; align-items: center; }
.source-card img { width: 92px; height: 92px; object-fit: contain; border-radius: 10px; background: #fff; padding: 6px; flex-shrink: 0; }
.source-info { min-width: 0; }
.source-info .site { font-size: 12px; color: var(--accent-2); text-transform: uppercase; letter-spacing: 0.06em; }
.source-info .title { font-weight: 700; font-size: 17px; margin: 2px 0 6px; }
.source-info .price { font-size: 15px; color: var(--gold); font-weight: 700; }
.badge-cache {
  font-size: 11px; color: var(--muted); border: 1px solid var(--border);
  padding: 2px 8px; border-radius: 999px; margin-left: 8px; vertical-align: middle;
}

.results-head { display: flex; align-items: center; justify-content: space-between; margin: 26px 2px 12px; gap: 10px; flex-wrap: wrap; }
.results-head h2 { font-size: 18px; margin: 0; }
.legend { display: flex; gap: 6px; }
.chip { font-size: 11px; padding: 3px 10px; border-radius: 999px; border: 1px solid; }
.chip.birebir { color: var(--accent-2); border-color: rgba(34, 211, 165, 0.5); background: rgba(34, 211, 165, 0.08); }
.chip.muadil { color: var(--gold); border-color: rgba(255, 184, 77, 0.5); background: rgba(255, 184, 77, 0.08); }
.chip.benzer { color: var(--muted); border-color: var(--border); }

.results { display: grid; grid-template-columns: 1fr; gap: 10px; }
.result {
  display: flex; gap: 16px; padding: 16px; background: var(--card);
  border: 1px solid var(--border); border-radius: var(--radius);
  transition: border-color 0.15s, transform 0.1s;
  animation: rise 0.3s ease both;
}
@keyframes rise { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
.result:hover { border-color: var(--accent); }
.result .img { width: 76px; height: 76px; object-fit: contain; border-radius: 9px; background: #fff; padding: 5px; flex-shrink: 0; }
.result .body { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 4px; }
.result .r-title { font-weight: 600; font-size: 14.5px; color: var(--text); text-decoration: none; }
.result .r-title:hover { color: var(--accent); }
.result .meta { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.retailer { font-size: 11.5px; font-weight: 700; padding: 2px 9px; border-radius: 6px; color: #0b0f17; }
.price { font-size: 16px; font-weight: 800; color: var(--gold); }
.price.diff { font-size: 12px; font-weight: 600; color: var(--accent-2); }
.price.diff.worse { color: var(--red); }
.reason { font-size: 12.5px; color: var(--muted); }
.score-ring {
  align-self: center; flex-shrink: 0; width: 52px; text-align: center;
  font-size: 11px; color: var(--muted);
}
.score-ring b { display: block; font-size: 20px; color: var(--text); }
.score-ring b.good { color: var(--accent-2); }
.score-ring b.mid { color: var(--gold); }

.empty { text-align: center; color: var(--muted); padding: 30px 0; font-size: 14px; }

.history { margin-top: 40px; }
.history h3 { font-size: 15px; color: var(--muted); margin-bottom: 12px; }
.history-grid { display: flex; flex-wrap: wrap; gap: 8px; }
.history a {
  display: inline-flex; align-items: center; gap: 8px; max-width: 100%;
  background: var(--card); border: 1px solid var(--border); color: var(--text);
  text-decoration: none; font-size: 13px; padding: 8px 14px; border-radius: 999px;
}
.history a:hover { border-color: var(--accent); }
.history a span.count { color: var(--accent-2); font-weight: 700; }
.history a .h-title { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 240px; }

.how { margin-top: 44px; }
.how h3 { margin: 0 0 16px; font-size: 16px; }
.how-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.how-grid div { font-size: 12.5px; color: var(--muted); background: var(--bg-soft); border-radius: 10px; padding: 12px; display: flex; flex-direction: column; gap: 6px; }
.how-grid b { color: var(--text); font-size: 13px; }

.foot { padding: 44px 20px 30px; text-align: center; color: var(--muted); font-size: 12.5px; }

@media (max-width: 720px) {
  .scan-box { flex-direction: column; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .how-grid { grid-template-columns: 1fr 1fr; }
  .source-card { flex-direction: row; }
  .result .img { width: 60px; height: 60px; }
}
@media (max-width: 460px) {
  .how-grid { grid-template-columns: 1fr; }
  .hero { padding-top: 40px; }
  .source-card img { width: 70px; height: 70px; }
}