/* ===================== RESET & BASE ===================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --sidebar-w: 240px;
  --sidebar-bg: #0d1117;
  --sidebar-border: #21262d;
  --sidebar-text: #8b949e;
  --sidebar-active-bg: #1f2937;
  --sidebar-active-text: #ffffff;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --success: #059669;
  --warning: #d97706;
  --danger: #dc2626;
  --bg: #f3f4f6;
  --card: #ffffff;
  --border: #e5e7eb;
  --text: #111827;
  --text-muted: #6b7280;
  --topbar-h: 60px;
  --radius: 10px;
  --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.06);
}

body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.5;
}

/* ===================== LAYOUT ===================== */
.layout {
  display: flex;
  min-height: 100vh;
}

/* ===================== SIDEBAR ===================== */
.sidebar {
  width: var(--sidebar-w);
  background: var(--sidebar-bg);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 100;
  border-right: 1px solid var(--sidebar-border);
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px 16px;
  border-bottom: 1px solid var(--sidebar-border);
}
.brand-icon {
  width: 38px; height: 38px;
  background: var(--accent);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; font-weight: 800; color: white;
  flex-shrink: 0;
}
.brand-name { display: block; font-size: 15px; font-weight: 700; color: #fff; }
.brand-sub  { display: block; font-size: 10px; color: var(--sidebar-text); text-transform: uppercase; letter-spacing: 0.05em; }

.sidebar-nav { flex: 1; padding: 16px 8px; overflow-y: auto; }
.nav-section-label {
  font-size: 10px; font-weight: 600;
  color: var(--sidebar-text);
  letter-spacing: 0.08em;
  padding: 0 8px 8px;
  text-transform: uppercase;
}
.nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px;
  border-radius: 8px;
  color: var(--sidebar-text);
  text-decoration: none;
  font-size: 13.5px;
  font-weight: 500;
  transition: all 0.15s;
  margin-bottom: 2px;
}
.nav-item:hover { background: #161b22; color: #e6edf3; }
.nav-item.active { background: var(--accent); color: #fff; }
.nav-icon { font-size: 16px; width: 20px; text-align: center; flex-shrink: 0; }

.sidebar-footer {
  padding: 12px 8px;
  border-top: 1px solid var(--sidebar-border);
}
.cikis-btn {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px;
  border-radius: 8px;
  color: var(--sidebar-text);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  transition: all 0.15s;
}
.cikis-btn:hover { background: #1f1f1f; color: #ef4444; }

/* ===================== MAIN CONTENT ===================== */
.main-content {
  margin-left: var(--sidebar-w);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ===================== TOPBAR ===================== */
.topbar {
  height: var(--topbar-h);
  background: var(--card);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  position: sticky;
  top: 0;
  z-index: 50;
}
.page-title { font-size: 16px; font-weight: 700; color: var(--text); }
.topbar-right { display: flex; align-items: center; gap: 16px; }
.topbar-date { font-size: 12.5px; color: var(--text-muted); font-weight: 500; }
.topbar-user {
  display: flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 600; color: var(--text);
}
.user-avatar {
  width: 32px; height: 32px;
  background: var(--accent);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: white; font-size: 13px; font-weight: 700;
}

/* ===================== PAGE BODY ===================== */
.page-body { padding: 24px; flex: 1; }

/* ===================== ALERTS ===================== */
.alert {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 16px;
  border-radius: var(--radius);
  margin-bottom: 16px;
  font-weight: 500; font-size: 13.5px;
}
.alert span:first-child {
  width: 20px; height: 20px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 11px; font-weight: 700; flex-shrink: 0;
}
.alert-basari { background: #ecfdf5; color: #065f46; border: 1px solid #a7f3d0; }
.alert-basari span:first-child { background: var(--success); color: white; }
.alert-hata   { background: #fef2f2; color: #991b1b; border: 1px solid #fecaca; }
.alert-hata span:first-child { background: var(--danger); color: white; }

/* ===================== SAYFA BAŞLIK ===================== */
.sayfa-baslik {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 20px;
}
.sayfa-baslik h1 { font-size: 20px; font-weight: 700; }

/* ===================== CARD ===================== */
.card {
  background: var(--card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  margin-bottom: 20px;
}
.card-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
}
.card-header h2 { font-size: 14px; font-weight: 700; color: var(--text); }
.card-body { padding: 20px; }
.card h2 { font-size: 14px; font-weight: 700; padding: 16px 20px 0; margin-bottom: 12px; }

/* ===================== BUTONLAR ===================== */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 16px;
  border: none; border-radius: 8px;
  font-size: 13px; font-weight: 600;
  cursor: pointer; text-decoration: none;
  transition: all 0.15s;
  white-space: nowrap;
}
.btn:hover { filter: brightness(0.92); transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-birincil  { background: var(--accent); color: white; }
.btn-basari    { background: var(--success); color: white; }
.btn-tehlike   { background: var(--danger); color: white; }
.btn-uyari     { background: var(--warning); color: white; }
.btn-ikincil   { background: #f3f4f6; color: #374151; border: 1px solid var(--border); }
.btn-ikincil:hover { background: #e5e7eb; filter: none; }
.btn-kucuk     { padding: 5px 10px; font-size: 12px; }
.btn-buyuk     { padding: 12px 24px; font-size: 15px; }

/* ===================== TABLO ===================== */
.tablo {
  width: 100%; border-collapse: collapse;
}
.tablo th {
  text-align: left;
  padding: 10px 16px;
  font-size: 11px; font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase; letter-spacing: 0.06em;
  background: #f9fafb;
  border-bottom: 1px solid var(--border);
}
.tablo th:first-child { border-radius: 0; }
.tablo td {
  padding: 12px 16px;
  border-bottom: 1px solid #f3f4f6;
  font-size: 13.5px;
}
.tablo tr:last-child td { border-bottom: none; }
.tablo tr:hover td { background: #f9fafb; }
.tablo tfoot td {
  border-top: 2px solid var(--border);
  border-bottom: none;
  font-weight: 700;
}
.satir-uyari td { background: #fffbeb !important; }
.satir-uyari:hover td { background: #fef3c7 !important; }
.bos-mesaj { text-align: center; color: var(--text-muted); padding: 32px !important; font-size: 13px; }
code {
  background: #f3f4f6; color: #374151;
  padding: 2px 7px; border-radius: 5px;
  font-size: 12px; font-family: 'Courier New', monospace;
}

/* ===================== ROZET ===================== */
.rozet {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 3px 10px; border-radius: 99px;
  font-size: 11.5px; font-weight: 600;
}
.rozet::before { content: '●'; font-size: 8px; }
.rozet-basari { background: #ecfdf5; color: #065f46; }
.rozet-uyari  { background: #fffbeb; color: #92400e; }
.rozet-tehlike{ background: #fef2f2; color: #991b1b; }

/* ===================== İSTATİSTİK KARTLAR ===================== */
.istatistik-kartlar {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 20px;
}
.istat-kart {
  background: var(--card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  padding: 20px;
  display: flex; align-items: center; gap: 16px;
}
.istat-ikon {
  width: 48px; height: 48px;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px; flex-shrink: 0;
}
.istat-ikon-mavi  { background: #eff6ff; }
.istat-ikon-yesil { background: #ecfdf5; }
.istat-ikon-sari  { background: #fffbeb; }
.istat-ikon-kirmizi { background: #fef2f2; }
.istat-bilgi {}
.istat-sayi { font-size: 22px; font-weight: 800; color: var(--text); line-height: 1.2; }
.istat-etiket { font-size: 12px; color: var(--text-muted); font-weight: 500; margin-top: 2px; }

/* ===================== SATIŞ EKRANI ===================== */
.satis-layout {
  display: grid;
  grid-template-columns: 1fr 1.8fr;
  gap: 20px;
  align-items: start;
}

.barkod-panel { padding: 20px; }
.barkod-panel h2 { font-size: 13px; font-weight: 700; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 12px; }

.barkod-input-wrap { position: relative; }
.barkod-input-wrap input {
  width: 100%;
  padding: 14px 16px 14px 44px;
  font-size: 16px; font-weight: 500;
  border: 2px solid var(--accent);
  border-radius: var(--radius);
  outline: none;
  background: #f8faff;
  transition: box-shadow 0.2s;
  color: var(--text);
}
.barkod-input-wrap input:focus {
  box-shadow: 0 0 0 4px rgba(37,99,235,0.15);
  background: white;
}
.barkod-input-wrap::before {
  content: '⊞';
  position: absolute; left: 14px; top: 50%; transform: translateY(-50%);
  font-size: 18px; color: var(--accent); pointer-events: none;
}

.urun-bilgi {
  margin-top: 12px;
  padding: 12px 14px;
  border-radius: var(--radius);
  font-size: 13.5px; font-weight: 500;
  display: flex; align-items: center; gap: 8px;
}
.urun-bilgi-ok  { background: #ecfdf5; color: #065f46; border: 1px solid #a7f3d0; }
.urun-bilgi-hata{ background: #fef2f2; color: #991b1b; border: 1px solid #fecaca; }
.gizli { display: none !important; }

/* Sepet */
.sepet-panel { padding: 0; }
.sepet-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
}
.sepet-header h2 { font-size: 14px; font-weight: 700; }
.sepet-adet-badge {
  background: var(--accent);
  color: white;
  border-radius: 99px;
  padding: 2px 8px;
  font-size: 11px; font-weight: 700;
  min-width: 22px; text-align: center;
}

#sepetTablosu { width: 100%; border-collapse: collapse; }
#sepetTablosu thead th {
  font-size: 11px; font-weight: 700; color: var(--text-muted);
  text-transform: uppercase; letter-spacing: 0.06em;
  padding: 10px 20px; background: #f9fafb;
  border-bottom: 1px solid var(--border);
  text-align: left;
}
#sepetTablosu td { padding: 10px 20px; border-bottom: 1px solid #f3f4f6; font-size: 13.5px; }
#sepetTablosu tr:last-child td { border-bottom: none; }
#sepetTablosu tr:hover td { background: #f9fafb; }

.adet-kontrol {
  display: flex; align-items: center; gap: 6px;
}
.adet-btn {
  width: 26px; height: 26px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: white;
  cursor: pointer; font-size: 14px;
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--text); font-weight: 600;
  transition: all 0.1s;
}
.adet-btn:hover { background: var(--accent); color: white; border-color: var(--accent); }
.adet-sayi { font-weight: 700; min-width: 20px; text-align: center; }

.silme-btn {
  width: 26px; height: 26px;
  border: none; background: none; cursor: pointer;
  color: #9ca3af; border-radius: 6px;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 16px; transition: all 0.1s;
}
.silme-btn:hover { background: #fef2f2; color: var(--danger); }

.sepet-alt {
  padding: 16px 20px;
  border-top: 1px solid var(--border);
  background: #f9fafb;
  border-radius: 0 0 var(--radius) var(--radius);
}
.sepet-toplam {
  display: flex; justify-content: space-between; align-items: baseline;
  margin-bottom: 14px;
}
.sepet-toplam-label { font-size: 13px; font-weight: 600; color: var(--text-muted); }
.sepet-toplam-fiyat { font-size: 26px; font-weight: 800; color: var(--success); }

.sepet-butonlar { display: flex; gap: 10px; }
.sepet-butonlar .btn { flex: 1; justify-content: center; padding: 11px; font-size: 14px; }

/* ===================== MODAL ===================== */
.modal {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.6);
  display: flex; align-items: center; justify-content: center;
  z-index: 200;
  backdrop-filter: blur(3px);
}
.modal-icerik {
  background: white;
  border-radius: 16px;
  width: 420px; max-width: 90vw;
  box-shadow: 0 25px 50px rgba(0,0,0,0.25);
  overflow: hidden;
}
.modal-baslik {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
}
.modal-baslik h2 { font-size: 16px; font-weight: 700; }
.modal-body { padding: 20px 24px; }
.modal-toplam {
  background: #f3f4f6;
  border-radius: var(--radius);
  padding: 14px 16px;
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 16px;
}
.modal-toplam-label { font-size: 13px; color: var(--text-muted); font-weight: 500; }
.modal-toplam-fiyat { font-size: 22px; font-weight: 800; color: var(--success); }
.para-ustu-satir {
  display: flex; justify-content: space-between; align-items: center;
  padding: 10px 0; border-top: 1px solid var(--border); margin-top: 10px;
}
.para-ustu-label { font-size: 13px; color: var(--text-muted); font-weight: 500; }
.para-ustu-fiyat { font-size: 18px; font-weight: 700; color: var(--accent); }
.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border);
  display: flex; gap: 10px; justify-content: flex-end;
}
.modal-footer .btn { min-width: 120px; justify-content: center; }

/* ===================== FORM ===================== */
.form-kart { max-width: 640px; padding: 24px; }
.form-group { margin-bottom: 16px; }
.form-group label {
  display: block; font-size: 12px; font-weight: 600;
  color: var(--text-muted); margin-bottom: 6px;
  text-transform: uppercase; letter-spacing: 0.04em;
}
.form-group input, .form-group select {
  width: 100%;
  padding: 9px 12px;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  font-size: 14px; color: var(--text);
  outline: none; transition: border-color 0.15s, box-shadow 0.15s;
  font-family: inherit;
}
.form-group input:focus, .form-group select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37,99,235,0.1);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-butonlar { display: flex; gap: 10px; justify-content: flex-end; margin-top: 20px; }

/* ===================== STOK FORM ===================== */
.stok-form { display: flex; align-items: center; gap: 6px; }
.stok-input {
  width: 70px; padding: 6px 8px;
  border: 1.5px solid var(--border); border-radius: 7px;
  font-size: 13px; text-align: center; font-family: inherit;
  outline: none;
}
.stok-input:focus { border-color: var(--accent); }
.islem-butonlar { display: flex; gap: 6px; align-items: center; }

/* ===================== ARAMA BAR ===================== */
.arama-bar {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap; background: #f9fafb;
}
.arama-bar input[type="text"] {
  flex: 1; min-width: 200px;
  padding: 8px 14px;
  border: 1.5px solid var(--border); border-radius: 8px;
  font-size: 13.5px; outline: none; font-family: inherit;
  transition: border-color 0.15s;
  background: white;
}
.arama-bar input[type="text"]:focus { border-color: var(--accent); }
.sonuc-sayisi {
  font-size: 12px; color: var(--text-muted);
  background: var(--border); padding: 4px 10px; border-radius: 99px;
  font-weight: 600; white-space: nowrap;
}
.filtre-select {
  padding: 7px 10px;
  border: 1.5px solid var(--border); border-radius: 8px;
  font-size: 13px; outline: none; background: white;
  cursor: pointer; font-family: inherit;
}
.filtre-select:focus { border-color: var(--accent); }

/* ===================== RAPOR FİLTRE ===================== */
.filtre-form { padding: 16px 20px; border-bottom: 1px solid var(--border); }
.filtre-satirlar {
  display: flex; gap: 12px; align-items: flex-end; flex-wrap: wrap;
}
.filtre-satirlar .form-group { margin-bottom: 0; min-width: 150px; }
.filtre-satirlar .form-group label { margin-bottom: 5px; }
.filtre-satirlar input[type="date"] {
  width: 100%; padding: 8px 10px;
  border: 1.5px solid var(--border); border-radius: 8px;
  font-size: 13px; outline: none; font-family: inherit;
}
.filtre-satirlar input[type="date"]:focus { border-color: var(--accent); }
.filtre-butonlar { display: flex; gap: 8px; align-items: flex-end; }

.filtre-ozet {
  display: flex; align-items: center; gap: 20px;
  padding: 14px 20px;
  background: #f9fafb;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}
.ozet-kutu { display: flex; flex-direction: column; gap: 2px; }
.ozet-sayi { font-size: 20px; font-weight: 800; color: var(--accent); line-height: 1; }
.ozet-etiket { font-size: 11px; color: var(--text-muted); font-weight: 500; text-transform: uppercase; letter-spacing: 0.04em; }
.ozet-ayrac { color: var(--border); font-size: 1.5rem; }

/* ===================== GİRİŞ EKRANI ===================== */
.giris-body {
  background: #0d1117;
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden;
}
.giris-body::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at 20% 50%, rgba(37,99,235,0.15) 0%, transparent 60%),
              radial-gradient(ellipse at 80% 20%, rgba(16,185,129,0.08) 0%, transparent 50%);
}
.giris-kart {
  background: #161b22;
  border: 1px solid #30363d;
  border-radius: 16px;
  padding: 40px 36px;
  width: 400px; max-width: 90vw;
  position: relative; z-index: 1;
  box-shadow: 0 25px 50px rgba(0,0,0,0.5);
}
.giris-logo { text-align: center; margin-bottom: 32px; }
.giris-logo-ikon {
  width: 64px; height: 64px;
  background: var(--accent);
  border-radius: 16px;
  display: flex; align-items: center; justify-content: center;
  font-size: 28px; font-weight: 800; color: white;
  margin: 0 auto 16px;
  box-shadow: 0 8px 24px rgba(37,99,235,0.4);
}
.giris-baslik { font-size: 22px; font-weight: 800; color: #e6edf3; margin-bottom: 4px; }
.giris-alt { color: #8b949e; font-size: 13px; }
.giris-form .form-group label { color: #8b949e; }
.giris-input {
  width: 100%;
  padding: 12px 16px;
  font-size: 15px;
  background: #0d1117;
  border: 1.5px solid #30363d;
  border-radius: 10px;
  color: #e6edf3;
  outline: none;
  letter-spacing: 0.1em;
  transition: border-color 0.2s, box-shadow 0.2s;
  font-family: inherit;
}
.giris-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37,99,235,0.2);
}
.giris-btn {
  width: 100%; justify-content: center;
  padding: 12px; font-size: 14px; margin-top: 8px;
  border-radius: 10px;
}
.giris-form .alert { margin-bottom: 16px; }

/* ===================== TARIH BADGE ===================== */
.tarih-badge {
  background: var(--border); color: var(--text-muted);
  padding: 5px 12px; border-radius: 99px;
  font-size: 12px; font-weight: 600;
}

/* ===================== TOPLU YÜKLEME ===================== */
.format-bilgi {
  background: #f8faff;
  border: 1px solid #dbeafe;
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 16px;
}
.format-bilgi strong { font-size: 12px; color: var(--accent); }

pre {
  background: #f3f4f6; padding: 14px 16px;
  border-radius: var(--radius); font-size: 12px;
  overflow-x: auto; line-height: 1.7;
  border: 1px solid var(--border);
}

/* ===================== RESPONSIVE ===================== */
@media (max-width: 900px) {
  .satis-layout { grid-template-columns: 1fr; }
  .sidebar { transform: translateX(-100%); }
  .main-content { margin-left: 0; }
}
@media (max-width: 600px) {
  .istatistik-kartlar { grid-template-columns: 1fr 1fr; }
  .form-row { grid-template-columns: 1fr; }
}