:root {
  --bg: #0b0f14;
  --panel: #111827;
  --card: #0f172a;
  --silver: #cbd5e1;
  --silver-soft: #94a3b8;
  --border: rgba(255,255,255,0.08);
  --accent: #38bdf8;
}

/* RESET */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Inter", sans-serif;
}

html, body {
  height: 100%;
}

body {
  background: linear-gradient(135deg, #020617, #0b1220);
  color: var(--silver);
  overflow: hidden; /* Tüm sayfa scroll kapalı */
}

/* LAYOUT */
.admin-wrapper {
  display: flex;
  height: 100vh; /* Tam ekran */
}

/* SIDEBAR SABİT */
.sidebar {
  width: 260px;
  height: 100vh;
  background: rgba(15,23,42,0.95);
  backdrop-filter: blur(14px);
  border-right: 1px solid var(--border);
  padding: 30px 20px;
  position: sticky;
  top: 0;
  flex-shrink: 0;
}

.logo {
  font-size: 22px;
  font-weight: 800;
  margin-bottom: 40px;
  color: #fff;
}

.sidebar nav a {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  border-radius: 14px;
  color: var(--silver-soft);
  margin-bottom: 10px;
  cursor: pointer;
  transition: 0.3s;
  text-decoration: none;
}

.sidebar nav a:hover,
.sidebar nav a.active {
  background: rgba(56,189,248,0.15);
  color: #fff;
}

/* CONTENT SCROLL */
.content {
  flex: 1;
  height: 100vh;
  overflow-y: auto;   /* SAĞ TARAF SCROLL */
  padding: 40px;
  position: relative;
}

/* TOPBAR */
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 40px;
}

.topbar h1 {
  font-size: 28px;
  color: #fff;
}

.logout {
  background: transparent;
  border: 1px solid var(--border);
  padding: 10px 18px;
  border-radius: 12px;
  color: var(--silver);
  cursor: pointer;
  transition: 0.3s;
}

.logout:hover {
  background: rgba(255,255,255,0.08);
}

/* DASHBOARD STATS */
.dashboard-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  margin-bottom: 40px;
}

.stat-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 25px;
  display: flex;
  align-items: center;
  gap: 20px;
}

.stat-card i {
  font-size: 30px;
  color: var(--accent);
  background: rgba(56,189,248,0.1);
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
}

.stat-info h3 {
  font-size: 24px;
  color: #fff;
  margin-bottom: 4px;
}

.stat-info p {
  font-size: 14px;
  color: var(--silver-soft);
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

.admin-table th, .admin-table td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.admin-table th {
    color: var(--accent);
    font-size: 14px;
    text-transform: uppercase;
}

.btn-edit { color: var(--accent); background: none; border: none; cursor: pointer; margin-right: 10px; }
.btn-delete { color: #ff4d4d; background: none; border: none; cursor: pointer; }

/* ============================= */
/* SECTION SİSTEMİ */
/* ============================= */

.section {
  display: none;
  animation: fadeSlide 0.3s ease;
}

.section.active {
  display: block;
}

@keyframes fadeSlide {
  from {
    opacity: 0;
    transform: translateX(20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* CARD */
.card {
  max-width: 650px;
  background: linear-gradient(
    180deg,
    rgba(255,255,255,0.04),
    rgba(255,255,255,0.01)
  );
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: 35px;
  box-shadow: 0 30px 80px rgba(0,0,0,0.6);
  margin-bottom: 40px;
}

.card h2 {
  margin-bottom: 25px;
  color: #fff;
}

/* FORM */
.card label {
  font-size: 14px;
  color: var(--silver-soft);
}

.card input,
.card textarea {
  width: 100%;
  margin-top: 6px;
  margin-bottom: 20px;
  padding: 14px 16px;
  border-radius: 12px;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border);
  color: #fff;
  transition: 0.3s;
}

.card textarea {
  min-height: 120px;
  resize: none;
}

.card input:focus,
.card textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(56,189,248,0.3);
}

/* BUTTON */
.save {
  width: 100%;
  padding: 15px;
  border-radius: 14px;
  border: none;
  background: linear-gradient(90deg, #38bdf8, #0ea5e9);
  color: #002b3d;
  font-weight: 800;
  cursor: pointer;
  transition: 0.3s;
}

.save:hover {
  transform: translateY(-3px);
  box-shadow: 0 20px 45px rgba(56,189,248,0.45);
}

/* ADMIN LIST ITEMS */
.admin-urun-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  border-radius: 12px;
  margin-bottom: 10px;
  transition: 0.3s;
}

.admin-urun-item:hover {
  background: rgba(255,255,255,0.06);
}

.admin-urun-item strong {
  color: #fff;
  font-size: 15px;
}

.admin-urun-item div {
  display: flex;
  gap: 8px;
}

.admin-urun-item button {
  padding: 6px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.05);
  color: var(--silver);
  font-size: 13px;
  cursor: pointer;
  transition: 0.3s;
}

.admin-urun-item button:hover {
  background: var(--accent);
  color: #002b3d;
  border-color: var(--accent);
}

/* ============================= */
/* RESPONSIVE */
/* ============================= */
@media (max-width: 992px) {
  .admin-wrapper {
    flex-direction: column;
    overflow: auto;
  }

  .sidebar {
    width: 100%;
    height: auto;
    position: relative;
    padding: 20px;
  }

  .sidebar nav {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
  }

  .sidebar nav a {
    margin-bottom: 0;
    font-size: 13px;
    padding: 10px 14px;
  }

  .content {
    height: auto;
    padding: 20px;
  }

  .topbar h1 {
    font-size: 22px;
  }

  .card {
    padding: 20px;
    border-radius: 16px;
  }
}

@media (max-width: 480px) {
  .sidebar nav a {
    flex: 1 1 45%;
    justify-content: center;
  }
}