/* ============================================================
   STOK YÖNETİM SİSTEMİ - ANA STİL DOSYASI
   Tasarım: Beyaz (#FFFFFF) içerik + Koyu Yeşil sidebar
   ============================================================ */

/* ---------- Sıfırlama & Genel ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --sidebar-bg:    #14532d;   /* Koyu orman yeşili */
  --sidebar-hover: #166534;
  --sidebar-aktif: #4ade80;
  --sidebar-yazi:  #bbf7d0;
  --sidebar-bas:   #86efac;
  --sidebar-gen:   260px;

  --icerik-bg:     #f8fafc;
  --kart-bg:       #ffffff;
  --sinir:         #e2e8f0;
  --golge:         0 1px 6px rgba(0,0,0,.08);

  --birincil:  #3b82f6;
  --yesil:     #22c55e;
  --kirmizi:   #ef4444;
  --turuncu:   #f97316;
  --mor:       #8b5cf6;

  --yazi-ana:  #1e293b;
  --yazi-ikn:  #64748b;

  --radius:    10px;
  --gecis:     all .2s ease;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: var(--icerik-bg);
  color: var(--yazi-ana);
  font-size: 15px;
  line-height: 1.6;
}

/* ============================================================
   SIDEBAR (Yan Menü)
   ============================================================ */
.sidebar {
  position: fixed;
  top: 0; left: 0;
  width: var(--sidebar-gen);
  height: 100vh;
  background: var(--sidebar-bg);
  display: flex;
  flex-direction: column;
  z-index: 1000;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: #166534 transparent;
}

.sidebar-logo {
  padding: 24px 20px;
  border-bottom: 1px solid #166534;
}
.sidebar-logo h2 {
  color: #f8fafc;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: .3px;
}
.sidebar-logo span {
  color: var(--sidebar-bas);
  font-size: 12px;
}

/* Kullanıcı bilgisi */
.sidebar-kullanici {
  padding: 16px 20px;
  border-bottom: 1px solid #166534;
  display: flex;
  align-items: center;
  gap: 10px;
}
.sidebar-avatar {
  width: 36px; height: 36px;
  background: #166534;
  border: 2px solid #4ade80;
  border-radius: 50%;
  display: flex;align-items:center;justify-content:center;
  color:#4ade80;font-weight:700;font-size:14px;flex-shrink:0;
}
.sidebar-kullanici-adi { color:#f1f5f9;font-size:13px;font-weight:600; }
.sidebar-rol {
  font-size:11px;
  color: var(--sidebar-bas);
  text-transform:uppercase;letter-spacing:.5px;
}

/* Menü bölümleri */
.sidebar-nav { padding: 12px 0; flex: 1; }
.sidebar-bolum-baslik {
  padding: 12px 20px 6px;
  font-size: 10px;
  color: var(--sidebar-bas);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 600;
}
.sidebar-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 20px;
  color: var(--sidebar-yazi);
  text-decoration: none;
  font-size: 14px;
  transition: var(--gecis);
  border-left: 3px solid transparent;
}
.sidebar-link:hover {
  background: var(--sidebar-hover);
  color: #f8fafc;
}
.sidebar-link.aktif {
  background: rgba(74,222,128,.15);
  color: #4ade80;
  border-left-color: var(--sidebar-aktif);
  font-weight: 600;
}
.sidebar-link .ikon { font-size: 16px; width: 20px; text-align: center; }

/* Çıkış butonu */
.sidebar-cikis {
  padding: 16px 20px;
  border-top: 1px solid #166534;
}
.sidebar-cikis a {
  display: flex;align-items:center;gap:8px;
  color:#f87171;text-decoration:none;font-size:14px;
  transition: var(--gecis);
}
.sidebar-cikis a:hover { color:#fca5a5; }

/* ============================================================
   ANA İÇERİK
   ============================================================ */
.icerik {
  margin-left: var(--sidebar-gen);
  min-height: 100vh;
  background: var(--icerik-bg);
}

/* Üst bar */
.ustyapi {
  background: var(--kart-bg);
  border-bottom: 1px solid var(--sinir);
  padding: 16px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;top:0;z-index:100;
  box-shadow: var(--golge);
}
.ustyapi-baslik h1 { font-size:20px;font-weight:700;color:var(--yazi-ana); }
.ustyapi-baslik p  { font-size:13px;color:var(--yazi-ikn);margin-top:2px; }

.ustyapi-bilgi { display:flex;align-items:center;gap:16px; }
.badge-kirmizi {
  background:#fee2e2;color:#dc2626;
  padding:4px 10px;border-radius:20px;
  font-size:12px;font-weight:600;
}

/* Sayfa içeriği padding */
.sayfa-icerik { padding: 24px 28px; }

/* ============================================================
   KART BİLEŞENİ
   ============================================================ */
.kart {
  background: var(--kart-bg);
  border: 1px solid var(--sinir);
  border-radius: var(--radius);
  box-shadow: var(--golge);
  overflow: hidden;
}
.kart-baslik {
  padding: 16px 20px;
  border-bottom: 1px solid var(--sinir);
  display: flex;align-items:center;justify-content:space-between;
}
.kart-baslik h3 { font-size:16px;font-weight:600; }
.kart-icerik { padding: 20px; }

/* ============================================================
   İSTATİSTİK KARTLARI (Dashboard)
   ============================================================ */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px,1fr));
  gap: 20px;
  margin-bottom: 24px;
}
.stat-kart {
  background: var(--kart-bg);
  border: 1px solid var(--sinir);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;align-items:center;gap:16px;
  box-shadow: var(--golge);
  transition: var(--gecis);
}
.stat-kart:hover { transform:translateY(-2px);box-shadow:0 4px 16px rgba(0,0,0,.12); }
.stat-ikon {
  width:52px;height:52px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  font-size:22px;flex-shrink:0;
}
.stat-ikon.mavi    { background:#dbeafe;color:#2563eb; }
.stat-ikon.yesil   { background:#dcfce7;color:#16a34a; }
.stat-ikon.kirmizi { background:#fee2e2;color:#dc2626; }
.stat-ikon.turuncu { background:#ffedd5;color:#ea580c; }
.stat-ikon.mor     { background:#ede9fe;color:#7c3aed; }

.stat-sayi  { font-size:28px;font-weight:700;color:var(--yazi-ana); }
.stat-etiket{ font-size:13px;color:var(--yazi-ikn);margin-top:2px; }

/* ============================================================
   TABLO
   ============================================================ */
.tablo-container { overflow-x:auto; }
table { width:100%;border-collapse:collapse; }
thead th {
  background:#f1f5f9;
  padding:11px 14px;
  text-align:left;
  font-size:12px;
  font-weight:600;
  color:var(--yazi-ikn);
  text-transform:uppercase;
  letter-spacing:.5px;
  border-bottom:1px solid var(--sinir);
}
tbody td {
  padding:12px 14px;
  border-bottom:1px solid #f1f5f9;
  font-size:14px;
  color:var(--yazi-ana);
}
tbody tr:last-child td { border-bottom:none; }
tbody tr:hover { background:#f8fafc; }

/* ============================================================
   FORMLAR
   ============================================================ */
.form-grup { margin-bottom:18px; }
.form-grup label {
  display:block;font-size:13px;font-weight:600;
  color:var(--yazi-ana);margin-bottom:6px;
}
.form-kontrol {
  width:100%;padding:10px 14px;
  border:1.5px solid var(--sinir);border-radius:8px;
  font-size:14px;color:var(--yazi-ana);
  background:#fff;transition:var(--gecis);
  font-family:inherit;
}
.form-kontrol:focus {
  outline:none;border-color:var(--birincil);
  box-shadow:0 0 0 3px rgba(59,130,246,.15);
}
.form-satir {
  display:grid;gap:16px;
  grid-template-columns:repeat(auto-fit,minmax(200px,1fr));
}

/* ============================================================
   BUTONLAR
   ============================================================ */
.btn {
  display:inline-flex;align-items:center;gap:6px;
  padding:9px 18px;border-radius:8px;
  font-size:14px;font-weight:600;
  border:none;cursor:pointer;
  text-decoration:none;transition:var(--gecis);
  font-family:inherit;
}
.btn-birincil { background:var(--birincil);color:#fff; }
.btn-birincil:hover { background:#2563eb; }
.btn-yesil  { background:var(--yesil);color:#fff; }
.btn-yesil:hover { background:#16a34a; }
.btn-kirmizi{ background:var(--kirmizi);color:#fff; }
.btn-kirmizi:hover{ background:#dc2626; }
.btn-ikincil{ background:#f1f5f9;color:var(--yazi-ana);border:1px solid var(--sinir); }
.btn-ikincil:hover{ background:#e2e8f0; }
.btn-kucuk { padding:6px 12px;font-size:12px; }

/* ============================================================
   ROZETLER (Badge)
   ============================================================ */
.rozet {
  display:inline-flex;align-items:center;
  padding:3px 10px;border-radius:20px;
  font-size:11px;font-weight:600;
}
.rozet-yesil  { background:#dcfce7;color:#166534; }
.rozet-kirmizi{ background:#fee2e2;color:#991b1b; }
.rozet-mavi   { background:#dbeafe;color:#1e40af; }
.rozet-turuncu{ background:#ffedd5;color:#9a3412; }

/* ============================================================
   GİRİŞ SAYFASI
   ============================================================ */
.giris-sayfa {
  min-height:100vh;
  background: linear-gradient(135deg, #1e293b 0%, #334155 50%, #1e3a5f 100%);
  display:flex;align-items:center;justify-content:center;
}
.giris-kart {
  background:#fff;border-radius:16px;
  padding:40px;width:100%;max-width:420px;
  box-shadow:0 20px 60px rgba(0,0,0,.3);
}
.giris-logo { text-align:center;margin-bottom:32px; }
.giris-logo h1 { font-size:22px;font-weight:700;color:var(--yazi-ana); }
.giris-logo p  { font-size:14px;color:var(--yazi-ikn);margin-top:4px; }
.giris-logo .logo-ikon {
  font-size:40px;margin-bottom:12px;display:block;
}

/* ============================================================
   YARDIMCI SINIFLAR
   ============================================================ */
.mb-4  { margin-bottom:16px; }
.mb-6  { margin-bottom:24px; }
.mt-4  { margin-top:16px; }
.flex  { display:flex; }
.items-center { align-items:center; }
.justify-between { justify-content:space-between; }
.gap-2 { gap:8px; }
.gap-4 { gap:16px; }
.w-full{ width:100%; }
.text-right { text-align:right; }
.text-center{ text-align:center; }
.text-kucuk { font-size:12px;color:var(--yazi-ikn); }

.alert-bilgi   { background:#dbeafe;color:#1e40af;padding:12px 16px;border-radius:8px;font-size:14px; }
.alert-hata    { background:#fee2e2;color:#991b1b;padding:12px 16px;border-radius:8px;font-size:14px; }
.alert-basari  { background:#dcfce7;color:#166534;padding:12px 16px;border-radius:8px;font-size:14px; }

/* Ayırıcı çizgi */
hr.ayirici { border:none;border-top:1px solid var(--sinir);margin:20px 0; }

/* ============================================================
   RESPONSİVE
   ============================================================ */
@media (max-width: 768px) {
  :root { --sidebar-gen: 0px; }
  .sidebar { transform:translateX(-260px);transition:.3s; }
  .sidebar.acik { transform:translateX(0);width:260px; }
  .icerik { margin-left:0; }
  .sayfa-icerik { padding:16px; }
  .stat-grid { grid-template-columns:1fr 1fr; }
}