:root {
  --bg: #0f1724;
  --bar: #111c2e;
  --panel: #ffffff;
  --accent: #2563c9;
  --green: #2e7d32;
  --red: #e03131;
  --text: #1b2430;
  --muted: #7a8699;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  color: var(--text);
  background: #eef1f5;
  height: 100%;
}

/* --- Brand --- */
.brand-main { font-weight: 800; letter-spacing: 2px; color: #fff; font-size: 1.6rem; }
.brand-sub  { font-weight: 600; letter-spacing: 6px; color: #cfd6e0; font-size: .7rem; display: block; margin-top: -4px; }

/* --- Topbar --- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bar);
  padding: 10px 22px;
  color: #fff;
}
.topbar-nav { display: flex; gap: 28px; }
.topbar-nav a {
  color: #c5cdd9;
  text-decoration: none;
  font-weight: 600;
  letter-spacing: 1px;
  padding-bottom: 4px;
  border-bottom: 3px solid transparent;
}
.topbar-nav a.active { color: #fff; border-bottom-color: var(--accent); }
.topbar-user { display: flex; align-items: center; gap: 14px; }
.user-name { font-weight: 600; }
.logout-form { margin: 0; }
.logout-form button {
  background: transparent;
  border: 1px solid #3a4760;
  color: #c5cdd9;
  border-radius: 6px;
  padding: 6px 12px;
  cursor: pointer;
}
.logout-form button:hover { background: #1c2940; color: #fff; }

/* kullanici menusu (dropdown) */
.user-menu { position: relative; }
.user-menu summary { list-style: none; cursor: pointer; color: #fff; font-weight: 600; padding: 6px 10px; border: 1px solid #3a4760; border-radius: 6px; }
.user-menu summary::-webkit-details-marker { display: none; }
.user-menu[open] summary { background: #1c2940; }
.user-menu-pop { position: absolute; right: 0; top: 110%; background: #fff; border-radius: 8px; box-shadow: 0 8px 24px rgba(0,0,0,.25); min-width: 170px; padding: 6px; z-index: 30; display: flex; flex-direction: column; }
.user-menu-pop a, .user-menu-pop button { text-align: left; padding: 10px 12px; color: var(--text); text-decoration: none; background: none; border: none; border-radius: 6px; font-size: .9rem; font-weight: 600; cursor: pointer; width: 100%; }
.user-menu-pop a:hover, .user-menu-pop button:hover { background: #eef4ff; }
.user-menu-pop .logout-form { margin: 0; }
.user-menu-pop button { color: var(--red); }

.content { padding: 24px; }

/* --- Placeholder --- */
.placeholder { max-width: 640px; margin: 60px auto; text-align: center; }
.placeholder h1 { font-size: 2rem; }
.muted { color: var(--muted); }

/* --- Kasa layout --- */
.kasa-wrap {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 16px;
  align-items: start;
}
.kasa-left { display: flex; flex-direction: column; gap: 14px; }

.panel {
  background: var(--panel);
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(20,30,50,.06);
  padding: 14px;
}
.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-weight: 700;
  letter-spacing: .5px;
  color: #495468;
  margin-bottom: 12px;
}
.search {
  flex: 1;
  max-width: 360px;
  padding: 9px 12px;
  border: 1px solid #d4dae3;
  border-radius: 8px;
  font-size: .95rem;
}

/* kategori butonlari */
.cat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 10px; margin-bottom: 14px; }
.cat-btn {
  background: var(--c, #334155);
  color: #fff;
  border: none;
  border-radius: 10px;
  padding: 18px 10px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  opacity: .82;
  transition: opacity .12s, transform .06s;
}
.cat-btn:hover { opacity: .95; }
.cat-btn.active { opacity: 1; box-shadow: 0 0 0 3px rgba(37,99,201,.35); }

/* urun izgarasi */
.prod-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); gap: 10px; max-height: 320px; overflow-y: auto; }
.prod-tile {
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: #f6f8fb;
  border: 1px solid #e3e8ef;
  border-radius: 10px;
  padding: 12px 10px;
  cursor: pointer;
  text-align: left;
}
.prod-tile:hover { border-color: var(--accent); background: #eef4ff; }
.prod-tile.out { opacity: .55; }
.pt-img { width: 100%; height: 64px; object-fit: cover; border-radius: 6px; margin-bottom: 4px; }
.pt-name { font-weight: 600; font-size: .92rem; color: var(--text); }
.row-thumb { width: 34px; height: 34px; object-fit: cover; border-radius: 6px; vertical-align: middle; margin-right: 8px; }
.img-current { display: flex; align-items: center; gap: 12px; margin-bottom: 8px; }
.img-current img { width: 80px; height: 80px; object-fit: cover; border-radius: 8px; border: 1px solid #d4dae3; }
.pt-price { font-weight: 800; color: var(--accent); }
.pt-stock { font-size: .75rem; color: var(--muted); }
.prod-empty, .prod-grid .prod-empty { color: var(--muted); padding: 20px; grid-column: 1/-1; text-align: center; }

/* manuel giris + odeme */
.kasa-controls { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.field label { display: block; font-size: .75rem; font-weight: 700; color: var(--muted); margin-bottom: 6px; letter-spacing: .5px; }
.manual-row { display: flex; gap: 12px; align-items: flex-end; }
.field.grow { flex: 1; }
.qty { display: flex; align-items: center; gap: 6px; }
.qty button { width: 38px; height: 42px; font-size: 1.3rem; border: 1px solid #d4dae3; background: #fff; border-radius: 8px; cursor: pointer; }
.qty input { width: 54px; height: 42px; text-align: center; font-size: 1.1rem; border: 1px solid #d4dae3; border-radius: 8px; }
.price-input { width: 100%; height: 42px; text-align: right; font-size: 1.3rem; font-weight: 700; padding: 0 12px; border: 1px solid #d4dae3; border-radius: 8px; }
.btn-add-manual { margin-top: 12px; width: 100%; padding: 11px; background: #eef4ff; color: var(--accent); border: 1px dashed var(--accent); border-radius: 8px; font-weight: 700; cursor: pointer; }
.btn-add-manual:hover { background: #e0ecff; }

.pay-grid { display: flex; flex-direction: column; gap: 10px; }
.pay-btn { padding: 14px; border: 2px solid #e3e8ef; background: #fff; border-radius: 10px; font-weight: 700; font-size: 1rem; cursor: pointer; color: #495468; }
.pay-btn[data-pay="nakit"].active { background: var(--green); border-color: var(--green); color: #fff; }
.pay-btn[data-pay="kart"].active { background: var(--accent); border-color: var(--accent); color: #fff; }
.pay-btn[data-pay="havale"].active { background: #6a3fb5; border-color: #6a3fb5; color: #fff; }
.pay-btn[data-pay="karma"].active { background: #b35900; border-color: #b35900; color: #fff; }
.split-panel { display: flex; flex-direction: column; gap: 8px; margin-top: 10px; padding: 10px; background: #f6f8fb; border-radius: 8px; }
.split-panel label { display: flex; align-items: center; justify-content: space-between; gap: 8px; font-size: .85rem; font-weight: 600; color: #495468; }
.split-panel input { width: 130px; padding: 8px 10px; text-align: right; border: 1px solid #d4dae3; border-radius: 6px; }
.split-rem { text-align: right; font-size: .9rem; color: #495468; padding-top: 4px; border-top: 1px dashed #d4dae3; }

/* aksiyon bar */
.action-row { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 10px; }
.act { padding: 16px 8px; border: none; border-radius: 10px; font-weight: 800; font-size: 1rem; cursor: pointer; color: #fff; }
.act small { display: block; font-weight: 600; font-size: .7rem; opacity: .85; }
.act-save { background: var(--green); }
.act-clear { background: #64748b; }
.act-disc { background: #e8730c; }
.act-note { background: #475569; }
.act:hover { filter: brightness(1.07); }

/* --- sag: mevcut satis --- */
.kasa-right { position: sticky; top: 16px; }
.sale-panel { display: flex; flex-direction: column; min-height: 520px; }
.sale-head .btn-cancel { background: var(--red); color: #fff; border: none; border-radius: 8px; padding: 7px 12px; font-weight: 700; font-size: .8rem; cursor: pointer; }
.cust-pick { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.cust-pick label { font-size: .8rem; font-weight: 700; color: var(--muted); }
.cust-pick select { flex: 1; padding: 9px 12px; border: 1px solid #d4dae3; border-radius: 8px; font-size: .9rem; }

.cart { width: 100%; border-collapse: collapse; }
.cart thead th { background: #1f3a63; color: #fff; padding: 10px 8px; font-size: .78rem; text-align: left; }
.cart thead th:nth-child(2), .cart thead th:nth-child(3), .cart thead th:nth-child(4) { text-align: right; }
.cart tbody td { padding: 10px 8px; border-bottom: 1px solid #eef1f5; font-size: .92rem; }
.ci-name { font-weight: 600; }
.ci-price, .ci-total { text-align: right; font-variant-numeric: tabular-nums; }
.ci-total { font-weight: 700; }
.ci-qty { text-align: center; white-space: nowrap; }
.ci-qty button { width: 26px; height: 26px; border: 1px solid #d4dae3; background: #fff; border-radius: 6px; cursor: pointer; }
.ci-qty span { display: inline-block; min-width: 26px; font-weight: 700; }
.ci-del { text-align: center; }
.row-del { width: 28px; height: 28px; border: none; background: #fdecec; color: var(--red); border-radius: 6px; font-size: 1.1rem; cursor: pointer; }
.cart-empty td { text-align: center; color: var(--muted); padding: 40px 0; }

.sale-foot { margin-top: auto; padding-top: 14px; }
.sale-meta .meta-line { display: flex; justify-content: space-between; font-size: .9rem; color: var(--muted); padding: 3px 0; }
.totals { display: grid; grid-template-columns: 1fr 1.3fr; gap: 12px; margin-top: 10px; border-top: 2px solid #eef1f5; padding-top: 14px; }
.t-count, .t-amount { background: #f6f8fb; border-radius: 10px; padding: 12px; text-align: center; }
.t-count span, .t-amount span { display: block; font-size: .72rem; font-weight: 700; color: var(--muted); letter-spacing: .5px; }
.t-count strong { font-size: 1.8rem; }
.t-amount { background: #eef4ff; }
.t-amount strong { font-size: 1.9rem; color: var(--accent); }

/* --- alt bar --- */
.bottom-bar { display: flex; gap: 2px; background: var(--bar); border-radius: 12px; margin-top: 16px; overflow: hidden; }
.bottom-bar a, .bb-exit button { flex: 1; text-align: center; padding: 16px 8px; color: #c5cdd9; text-decoration: none; font-weight: 700; font-size: .82rem; letter-spacing: .5px; background: transparent; border: none; cursor: pointer; }
.bottom-bar a:hover, .bb-exit button:hover { background: #1c2940; color: #fff; }
.bb-exit { flex: 1; margin: 0; display: flex; }
.bb-exit button { color: #ff7a7a; width: 100%; }

/* --- toast --- */
.toast { position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%) translateY(20px); background: #1f2937; color: #fff; padding: 14px 22px; border-radius: 10px; font-weight: 600; opacity: 0; pointer-events: none; transition: opacity .2s, transform .2s; z-index: 50; }
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast.ok { background: #14794a; }
.toast.err { background: #b42318; }

.btn-link { color: var(--accent); text-decoration: none; font-weight: 600; }

/* ===== Responsive (tablet-first + telefon) ===== */
.mobile-bar { display: none; }

/* Tablet / kucuk: kasa tek kolon + mobil ozet bar */
@media (max-width: 900px) {
  .kasa-wrap { grid-template-columns: 1fr; }
  .kasa-right { position: static; }
  .sale-panel { min-height: auto; }
  .content { padding: 16px; padding-bottom: 88px; }

  .mobile-bar {
    display: flex; align-items: center; justify-content: space-between; gap: 12px;
    position: fixed; left: 0; right: 0; bottom: 0; z-index: 40;
    background: var(--bar); color: #fff; padding: 10px 16px;
    box-shadow: 0 -4px 16px rgba(0,0,0,.25);
  }
  .mb-info { font-size: .95rem; }
  .mb-info strong { color: #fff; }
  .mb-save { background: var(--green); color: #fff; border: none; border-radius: 8px; padding: 13px 18px; font-weight: 800; font-size: .95rem; cursor: pointer; }

  .kasa-controls { grid-template-columns: 1fr; }
  .prod-grid { max-height: none; }
  .bottom-bar { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .bottom-bar a, .bb-exit button { white-space: nowrap; }
}

/* Telefon: tablolar yatay kayar, nav/form sarar */
@media (max-width: 600px) {
  .topbar { flex-wrap: wrap; gap: 8px; padding: 10px 14px; }
  .topbar-nav { order: 3; width: 100%; gap: 20px; overflow-x: auto; }
  .panel { overflow-x: auto; }
  .form-grid { grid-template-columns: 1fr; }
  .action-row { grid-template-columns: 1fr 1fr; }
  .cards { grid-template-columns: 1fr 1fr; }
  .page-head { flex-wrap: wrap; gap: 10px; }
  .filter-bar { gap: 8px; }
  .brand-main { font-size: 1.3rem; }
}

/* --- Yonetim sayfalari (urunler/kategoriler) --- */
.page-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.page-head h1 { font-size: 1.6rem; margin: 0; }
.page-actions { display: flex; gap: 10px; }
.panel-title { margin: 0 0 12px; font-size: 1rem; color: #495468; }

.btn { display: inline-flex; align-items: center; gap: 6px; padding: 10px 16px; border-radius: 8px; font-weight: 700; font-size: .9rem; text-decoration: none; border: 1px solid transparent; cursor: pointer; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: #1d4fa0; }
.btn-light { background: #eef1f5; color: #495468; border-color: #d4dae3; }
.btn-light:hover { background: #e3e8ef; }

.alert-low { background: #fff7e6; border: 1px solid #ffd591; color: #8a5800; padding: 12px 16px; border-radius: 10px; margin-bottom: 14px; }
.alert-low a { color: #8a5800; font-weight: 700; }
.alert-err { background: #fdecec; border: 1px solid #f5c2c2; color: var(--red); padding: 12px 16px; border-radius: 10px; margin-bottom: 14px; }

.filter-bar { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; margin-bottom: 16px; }
.filter-bar .search { flex: 1; min-width: 200px; max-width: none; }
.filter-bar select { padding: 9px 12px; border: 1px solid #d4dae3; border-radius: 8px; }
.chk { display: flex; align-items: center; gap: 6px; font-size: .9rem; color: #495468; }

.data-table { width: 100%; border-collapse: collapse; }
.data-table th { text-align: left; padding: 10px 12px; font-size: .78rem; color: var(--muted); border-bottom: 2px solid #eef1f5; text-transform: uppercase; letter-spacing: .5px; }
.data-table th.r, .data-table td.r { text-align: right; }
.data-table th.c, .data-table td.c { text-align: center; }
.data-table td { padding: 12px; border-bottom: 1px solid #f1f4f8; font-size: .92rem; }
.data-table .td-name { font-weight: 600; }
.data-table .td-barcode { font-variant-numeric: tabular-nums; color: var(--muted); }
.data-table .empty { text-align: center; color: var(--muted); padding: 36px; }
.row-passive { opacity: .5; }

.cat-chip { display: inline-block; padding: 3px 10px; border-radius: 20px; background: var(--c, #334155); color: #fff; font-size: .78rem; font-weight: 600; }
.badge-on { color: var(--green); font-weight: 700; font-size: .82rem; }
.badge-off { color: var(--muted); font-weight: 700; font-size: .82rem; }

/* stok hucresi */
.stock-cell { display: inline-flex; align-items: center; gap: 6px; }
.st-btn { width: 26px; height: 26px; border: 1px solid #d4dae3; background: #fff; border-radius: 6px; cursor: pointer; font-size: 1rem; line-height: 1; }
.st-btn:hover { background: #eef4ff; border-color: var(--accent); }
.st-val { min-width: 30px; text-align: center; font-weight: 700; font-variant-numeric: tabular-nums; }
.stock-cell.low .st-val { color: var(--red); }
.low-badge { background: var(--red); color: #fff; font-size: .65rem; font-weight: 700; padding: 1px 6px; border-radius: 10px; text-transform: uppercase; }

.td-actions { white-space: nowrap; text-align: right; }
.btn-sm { display: inline-block; padding: 6px 10px; border-radius: 6px; font-size: .8rem; font-weight: 700; text-decoration: none; border: 1px solid #d4dae3; background: #fff; color: #495468; cursor: pointer; margin-left: 4px; }
.btn-sm:hover { background: #eef4ff; }
.btn-sm-warn { color: #b35900; border-color: #ffd591; background: #fff7e6; }
.btn-sm-ok { color: var(--green); border-color: #b7e0c2; background: #eaf7ee; }
.inline { display: inline; margin: 0; }

/* form */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.fg { display: flex; flex-direction: column; gap: 6px; }
.fg.full { grid-column: 1 / -1; }
.fg label { font-size: .82rem; font-weight: 700; color: #495468; }
.fg input, .fg select { padding: 10px 12px; border: 1px solid #d4dae3; border-radius: 8px; font-size: .95rem; }
.form-foot { flex-direction: row; gap: 10px; margin-top: 6px; }

/* kategori satirlari */
.cat-row { display: flex; align-items: center; gap: 12px; padding: 8px 0; }
.cat-row.inner-form { flex: 1; padding: 0; }
.cat-row input[type=text] { padding: 9px 12px; border: 1px solid #d4dae3; border-radius: 8px; }
.cat-row input[type=color] { width: 40px; height: 38px; border: 1px solid #d4dae3; border-radius: 8px; background: none; cursor: pointer; }
.cat-row .grow { flex: 1; }
.lbl-sm { display: flex; align-items: center; gap: 6px; font-size: .85rem; color: #495468; }
.num-sm { width: 64px; padding: 9px; border: 1px solid #d4dae3; border-radius: 8px; }
.num-md { width: 120px; padding: 9px 12px; border: 1px solid #d4dae3; border-radius: 8px; }
.small { font-size: .82rem; }

/* --- Raporlar / kartlar --- */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 14px; margin-bottom: 16px; }
.card { background: var(--panel); border-radius: 12px; padding: 18px; box-shadow: 0 2px 8px rgba(20,30,50,.06); display: flex; flex-direction: column; gap: 8px; }
.card-label { font-size: .78rem; font-weight: 700; color: var(--muted); letter-spacing: .5px; text-transform: uppercase; }
.card-val { font-size: 1.7rem; font-weight: 800; }
.card-accent { background: #eef4ff; }
.card-accent .card-val { color: var(--accent); }
.card-ok { color: var(--green); }
.card-bad { color: var(--red); }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
.grid-2 .panel { margin: 0; }
.row-strong td { font-weight: 800; border-top: 2px solid #eef1f5; }

.detail-meta { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px,1fr)); gap: 14px; padding-bottom: 12px; border-bottom: 1px solid #eef1f5; }
.detail-meta div { display: flex; flex-direction: column; gap: 3px; }
.detail-meta .muted { font-size: .75rem; text-transform: uppercase; letter-spacing: .5px; }
.data-table tfoot td { padding: 10px 12px; }

.btn-danger { background: var(--red); color: #fff; }
.btn-danger:hover { filter: brightness(1.08); }
.iptal-form { margin-top: 16px; }

@media (max-width: 820px) {
  .grid-2 { grid-template-columns: 1fr; }
}

/* --- Login --- */
.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: linear-gradient(135deg, #0f1724, #1c2940);
}
.login-card {
  background: var(--panel);
  padding: 36px 32px;
  border-radius: 14px;
  width: 340px;
  max-width: 92vw;
  box-shadow: 0 12px 40px rgba(0,0,0,.35);
}
.login-card .brand { text-align: center; margin-bottom: 24px; }
.login-card .brand-main { color: #14223a; }
.login-card .brand-sub { color: #6a7588; }
.login-card label { display: block; font-size: .85rem; font-weight: 600; margin: 14px 0 6px; }
.login-card input {
  width: 100%;
  padding: 12px;
  border: 1px solid #d4dae3;
  border-radius: 8px;
  font-size: 1rem;
}
/* PIN login */
.login-pin { width: 380px; max-width: 92vw; }
.login-hint { text-align: center; font-weight: 600; color: #495468; margin: 6px 0 16px; }
.user-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.user-card { display: flex; flex-direction: column; align-items: center; gap: 6px; padding: 16px 10px; border: 1px solid #d4dae3; border-radius: 12px; background: #f6f8fb; cursor: pointer; }
.user-card:hover { border-color: var(--accent); background: #eef4ff; }
.user-avatar { width: 46px; height: 46px; border-radius: 50%; background: var(--accent); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 1.3rem; font-weight: 800; }
.user-cn { font-weight: 700; color: var(--text); }
.user-role { font-size: .7rem; color: var(--muted); text-transform: uppercase; letter-spacing: .5px; }

.pin-dots { display: flex; justify-content: center; gap: 14px; margin: 8px 0 20px; }
.pin-dots span { width: 16px; height: 16px; border-radius: 50%; border: 2px solid #c4ccd8; }
.pin-dots span.filled { background: var(--accent); border-color: var(--accent); }
.pin-pad { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.pin-key { padding: 18px 0; font-size: 1.3rem; font-weight: 700; border: 1px solid #d4dae3; background: #fff; border-radius: 10px; cursor: pointer; }
.pin-key:hover { background: #eef4ff; }
.pin-back, .pin-cancel { font-size: .95rem; color: var(--muted); }

.narrow-page { max-width: 520px; margin: 0 auto; }
.narrow-page h1 { font-size: 1.5rem; }

.login-error {
  background: #fdecec;
  color: var(--red);
  padding: 10px 12px;
  border-radius: 8px;
  font-size: .9rem;
  margin-bottom: 6px;
}