:root {
  --bg: #eef2f7;
  --card: #ffffff;
  --ink: #0f172a;
  --muted: #64748b;
  --accent: #0ea5e9;
  --accent-2: #0369a1;
  --good: #16a34a;
  --bad: #dc2626;
  --border: #e2e8f0;
  --radius: 14px;
  --shadow: 0 1px 3px rgba(15, 23, 42, .08), 0 6px 20px rgba(15, 23, 42, .05);
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, "Segoe UI", Roboto, system-ui, sans-serif;
  background: var(--bg);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.4;
  padding-bottom: 48px;
}

.hidden { display: none !important; }

header {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 8px;
  padding: 10px 12px;
  background: #0f172a; color: #fff;
}
header h1 { margin: 0; font-size: 18px; letter-spacing: .4px; }

.status { width: 10px; height: 10px; border-radius: 50%; background: #475569; display: inline-block; transition: background .3s; }
.status.ok { background: #22c55e; }
.status.bad { background: #ef4444; }
.status.info { background: #38bdf8; }

/* --- mode toggle --- */
.mode-toggle {
  display: flex; gap: 6px; padding: 12px 16px 0;
  background: var(--bg);
}
.mode-btn {
  flex: 1; border: 1.5px solid var(--border); background: #fff;
  border-radius: 10px; padding: 11px; font-size: 15px; font-weight: 700;
  color: var(--muted); cursor: pointer;
}
.mode-btn.active { background: var(--accent); color: #fff; border-color: var(--accent); }

section { padding: 14px 16px 0; }
.card {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px;
  margin-bottom: 16px;
}

h2 { margin: 0 0 12px; font-size: 17px; }
h3 { margin: 16px 0 8px; font-size: 15px; color: var(--accent-2); }

label {
  display: block; font-size: 11px; font-weight: 700; color: var(--muted);
  margin: 10px 0 4px; text-transform: uppercase; letter-spacing: .5px;
}

input[type=text], input[type=number], input[type=search] {
  width: 100%; padding: 13px; font-size: 16px;
  border: 1.5px solid var(--border); border-radius: 10px;
  background: #f8fafc; color: var(--ink);
  -webkit-appearance: none; appearance: none;
}
input:focus { outline: none; border-color: var(--accent); background: #fff; }

.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.grid3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 8px; }

.divider { height: 1px; background: var(--border); margin: 16px 0 4px; }
.muted { color: var(--muted); font-weight: 400; font-size: 13px; }

/* --- steps indicator --- */
.steps {
  list-style: none; display: flex; gap: 4px; padding: 14px 16px 0; margin: 0;
}
.steps li {
  flex: 1; text-align: center; font-size: 10px; font-weight: 700;
  color: var(--muted); padding: 8px 2px 10px; position: relative;
  border-bottom: 3px solid var(--border);
}
.steps li.active { color: var(--accent-2); border-bottom-color: var(--accent); }
.steps li.done { color: var(--good); border-bottom-color: var(--good); }

/* --- scanner --- */
.scanner-box {
  position: relative; border-radius: var(--radius); overflow: hidden;
  background: #0f172a; aspect-ratio: 4 / 3; max-height: 340px;
}
.scanner-box video { width: 100%; height: 100%; object-fit: cover; }
.scanner-box:not(.active) video { display: none; }
.scan-overlay { position: absolute; inset: 0; pointer-events: none; z-index: 3; }
.scanner-box:not(.active) .scan-overlay { display: none; }
.scan-line {
  position: absolute; left: 8%; right: 8%; top: 50%; height: 2px;
  background: #22c55e; box-shadow: 0 0 12px #22c55e;
  animation: scan 2s ease-in-out infinite;
}
.scan-hint {
  position: absolute; bottom: 12px; left: 0; right: 0; text-align: center;
  color: #fff; font-size: 13px; text-shadow: 0 1px 3px #000;
}
.focus-reticle {
  position: absolute; width: 48px; height: 48px; border-radius: 50%;
  border: 2px solid #22c55e; box-shadow: 0 0 0 1px rgba(0,0,0,.35);
  pointer-events: none; opacity: 0; transition: opacity .18s;
  transform: translate(-50%, -50%); z-index: 5;
}
.focus-reticle.show { opacity: 1; }
@keyframes scan { 0%, 100% { top: 20%; } 50% { top: 80%; } }

.scanner-controls { display: flex; gap: 8px; margin-top: 10px; align-items: stretch; }
.scanner-controls input { flex: 1; }

/* --- scan result / approve --- */
.scan-result {
  margin-top: 12px; padding: 12px; border-radius: 10px;
  background: #f8fafc; border: 1.5px solid var(--border);
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
}
.scanned-code {
  font-family: ui-monospace, "SF Mono", monospace; font-weight: 700;
  font-size: 17px; flex: 1; word-break: break-all; min-width: 140px;
}
.scanned-code.ok { color: var(--good); }
.scan-result .btn { flex-shrink: 0; }

/* --- step nav --- */
.step-nav { display: flex; gap: 10px; padding: 0 16px 16px; }
.step-nav .btn:first-child { flex: 1; }
.step-nav .btn:last-child { flex: 2; }

/* --- buttons --- */
.btn {
  border: none; border-radius: 10px; padding: 12px 18px;
  font-size: 15px; font-weight: 600; cursor: pointer;
  background: #e2e8f0; color: var(--ink);
}
.btn.primary { background: var(--accent); color: #fff; }
.btn.primary:active { background: var(--accent-2); }
.btn.ghost { background: #e2e8f0; }
.btn.big { padding: 14px; font-size: 16px; }
.btn.small { padding: 8px 12px; font-size: 13px; }
.actions { display: flex; gap: 10px; margin-top: 16px; }
.actions .btn:first-child { flex: 2; }
.actions .btn:last-child { flex: 1; }

/* --- desi result --- */
.desi-result {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  margin-top: 14px; padding: 12px 14px; background: #f0f9ff;
  border: 1px solid #bae6fd; border-radius: 10px;
}
.desi-result label { margin-top: 0; }
.big-num { font-size: 32px; font-weight: 800; color: var(--accent-2); line-height: 1; }

/* --- comparison --- */
.comparison { display: flex; gap: 10px; margin-top: 12px; }
.cmp { flex: 1; border-radius: 10px; padding: 10px 8px; text-align: center; }
.cmp span { display: block; font-size: 10px; font-weight: 700; text-transform: uppercase; letter-spacing: .4px; }
.cmp strong { font-size: 16px; }
.cmp.good { background: #f0fdf4; border: 1px solid #bbf7d0; }
.cmp.good span { color: var(--muted); }
.cmp.good strong { color: var(--good); }
.cmp.bad { background: #fef2f2; border: 1px solid #fecaca; }
.cmp.bad span { color: var(--muted); }
.cmp.bad strong { color: var(--bad); }

/* --- review --- */
.review { display: flex; flex-direction: column; }
.rv-row {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 0; border-bottom: 1px solid var(--border);
}
.rv-row:last-child { border-bottom: none; }
.rv-label { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .4px; width: 110px; flex-shrink: 0; }
.rv-val { flex: 1; font-size: 15px; word-break: break-all; }
.rv-edit {
  border: none; background: #e0f2fe; color: var(--accent-2);
  border-radius: 7px; padding: 5px 10px; font-size: 12px; font-weight: 700;
  cursor: pointer; flex-shrink: 0;
}

/* --- history --- */
.history-head { display: flex; align-items: center; justify-content: space-between; }
.history-head h2 { margin: 0; }
#records { margin-top: 10px; display: flex; flex-direction: column; gap: 8px; }
.record { border: 1px solid var(--border); border-radius: 10px; padding: 12px; background: #fff; }
.r-top { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.r-barcode { font-weight: 700; font-family: ui-monospace, "SF Mono", monospace; font-size: 15px; word-break: break-all; flex: 1; }
.r-time { font-size: 11px; color: var(--muted); margin: 2px 0 8px; }
.r-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 6px 8px; font-size: 13px; color: var(--muted); }
.r-grid b { color: var(--ink); }
.del {
  border: none; background: #fee2e2; color: var(--bad);
  border-radius: 7px; width: 30px; height: 30px; font-size: 15px;
  cursor: pointer; flex-shrink: 0; line-height: 1;
}
.empty { text-align: center; color: var(--muted); padding: 24px; }

/* --- auth --- */
.auth-overlay {
  position: fixed; inset: 0; z-index: 100;
  background: #0f172a; display: flex; align-items: center; justify-content: center;
  padding: 24px;
}
.auth-card {
  background: #fff; border-radius: 18px; padding: 24px; width: 100%; max-width: 360px;
  box-shadow: 0 20px 60px rgba(0,0,0,.4);
}
.auth-card h1 { margin: 0; font-size: 22px; text-align: center; }
.auth-sub { text-align: center; color: var(--muted); font-size: 13px; margin: 6px 0 18px; }
.auth-tabs { display: flex; gap: 6px; margin-bottom: 18px; }
.auth-tab {
  flex: 1; border: 1.5px solid var(--border); background: #f8fafc;
  border-radius: 10px; padding: 10px; font-size: 14px; font-weight: 700;
  color: var(--muted); cursor: pointer;
}
.auth-tab.active { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn.block { width: 100%; margin-top: 14px; }
.auth-error {
  margin-top: 12px; padding: 10px; background: #fef2f2; border: 1px solid #fecaca;
  color: var(--bad); border-radius: 10px; font-size: 13px; text-align: center;
}

/* --- header user --- */
.header-right { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.entry-count {
  background: #22c55e; color: #0f172a; font-weight: 800;
  border-radius: 999px; padding: 4px 11px; font-size: 13px;
  min-width: 28px; text-align: center; line-height: 1.2;
}
.user-chip {
  font-size: 13px; font-weight: 700; color: #0f172a; background: #38bdf8;
  border-radius: 999px; padding: 4px 12px; max-width: 140px;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.logout {
  border: 1px solid #475569; background: transparent; color: #cbd5e1;
  border-radius: 8px; padding: 5px 10px; font-size: 12px; font-weight: 700; cursor: pointer;
}

/* --- history filters --- */
.history-filters { display: flex; gap: 8px; margin-top: 10px; }
.history-filters input { flex: 2; }
.history-filters select { flex: 1; }
select {
  padding: 12px; font-size: 16px; border: 1.5px solid var(--border); border-radius: 10px;
  background: #f8fafc; color: var(--ink); -webkit-appearance: none; appearance: none;
}

/* --- record meta --- */
.r-meta {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 11px; color: var(--muted); margin: 2px 0 8px;
}
.r-user { color: var(--accent-2); font-weight: 700; }

/* --- price / status in record card --- */
.export-btns { display: flex; gap: 6px; flex-wrap: wrap; }
.r-price-row { display: flex; align-items: center; gap: 10px; margin: 6px 0 2px; flex-wrap: wrap; }
.r-durum {
  font-size: 12px; font-weight: 800; padding: 4px 10px; border-radius: 999px;
}
.r-durum.good { background: #f0fdf4; color: var(--good); border: 1px solid #bbf7d0; }
.r-durum.bad { background: #fef2f2; color: var(--bad); border: 1px solid #fecaca; }
.r-price { font-size: 18px; font-weight: 800; color: var(--ink); }

/* --- duplicate warning --- */
.scanned-code.dup { color: var(--bad); }
.dup-warning {
  flex-basis: 100%; font-size: 12px; font-weight: 700; color: var(--bad);
}
.dup-note {
  margin-top: 8px; padding: 10px; background: #fef2f2; border: 1px solid #fecaca;
  color: var(--bad); border-radius: 10px; font-size: 13px; font-weight: 700;
}

/* --- sicil no (header + modal) --- */
.sicil-btn {
  border: 1px solid #475569; background: transparent; color: #cbd5e1;
  border-radius: 999px; padding: 5px 10px; font-size: 12px; font-weight: 700; cursor: pointer;
  max-width: 170px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.sicil-btn .unset { color: #fca5a5; }
.sicil-overlay {
  position: fixed; inset: 0; z-index: 110;
  background: rgba(15, 23, 42, .6); display: flex; align-items: center; justify-content: center;
  padding: 24px;
}
.sicil-card {
  background: #fff; border-radius: 18px; padding: 22px; width: 100%; max-width: 360px;
  box-shadow: 0 20px 60px rgba(0,0,0,.4);
}
.sicil-card h2 { margin: 0 0 6px; }
.sicil-sub { color: var(--muted); font-size: 13px; margin: 0 0 14px; }
.sicil-card .actions { margin-top: 14px; }

/* --- price / fark in record card --- */
.r-kabul { font-size: 12px; font-weight: 700; color: var(--muted); }
.r-note { margin: 4px 0 2px; font-size: 12px; font-weight: 700; color: var(--bad); }
.r-fark { font-size: 12px; font-weight: 800; padding: 3px 8px; border-radius: 999px; }
.r-fark.kar { background: #f0fdf4; color: var(--good); border: 1px solid #bbf7d0; }
.r-fark.zarar { background: #fef2f2; color: var(--bad); border: 1px solid #fecaca; }
.r-fark.esit { background: #f1f5f9; color: var(--muted); border: 1px solid var(--border); }