/* ═══════════════════════════════════════════════════════════════
   CetinsPanel — app.css
   wowdash tarzı: koyu sidebar, açık içerik, temiz kartlar
═══════════════════════════════════════════════════════════════ */

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

:root {
  /* Marka renkleri */
  --brand:          #4F46E5; /* indigo */
  --brand-dark:     #4338CA;
  --brand-light:    #EEF2FF;
  --brand-hover:    #6366F1;

  /* Sidebar */
  --sidebar-bg:     #0F172A; /* slate-900 */
  --sidebar-hover:  #1E293B;
  --sidebar-active: #1E293B;
  --sidebar-border: #1E293B;
  --sidebar-text:   #94A3B8;
  --sidebar-text-active: #F1F5F9;
  --sidebar-width:  260px;
  --sidebar-collapsed: 72px;

  /* İçerik alanı */
  --bg-page:    #F8FAFC;
  --bg-card:    #FFFFFF;
  --bg-input:   #FFFFFF;
  --bg-hover:   #F1F5F9;

  /* Metin */
  --text-primary:   #0F172A;
  --text-secondary: #64748B;
  --text-muted:     #94A3B8;
  --text-white:     #FFFFFF;

  /* Kenarlık */
  --border:         #E2E8F0;
  --border-focus:   #4F46E5;

  /* Durum renkleri */
  --success:        #10B981;
  --success-light:  #ECFDF5;
  --warning:        #F59E0B;
  --warning-light:  #FFFBEB;
  --danger:         #EF4444;
  --danger-light:   #FEF2F2;
  --info:           #3B82F6;
  --info-light:     #EFF6FF;

  /* Tipografi */
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Köşe yarıçapı */
  --radius-sm:  6px;
  --radius:     10px;
  --radius-lg:  14px;
  --radius-xl:  20px;

  /* Gölge */
  --shadow-sm:  0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);
  --shadow:     0 4px 6px -1px rgba(0,0,0,.07), 0 2px 4px -1px rgba(0,0,0,.04);
  --shadow-lg:  0 10px 15px -3px rgba(0,0,0,.08), 0 4px 6px -2px rgba(0,0,0,.04);

  /* Topbar yüksekliği */
  --topbar-h: 64px;

  /* Geçiş */
  --transition: 0.2s ease;
}

html { font-size: 15px; -webkit-font-smoothing: antialiased; }

body {
  font-family: var(--font);
  background: var(--bg-page);
  color: var(--text-primary);
  line-height: 1.6;
}

a { color: var(--brand); text-decoration: none; }
a:hover { color: var(--brand-dark); }
img { max-width: 100%; display: block; }
button { font-family: var(--font); cursor: pointer; border: none; background: none; }

/* ── PANEL LAYOUT ───────────────────────────────────────────── */
.panel-wrapper {
  display: flex;
  min-height: 100vh;
}

.panel-main {
  flex: 1;
  margin-left: var(--sidebar-width);
  transition: margin-left var(--transition);
  min-width: 0;
}

.panel-main.collapsed {
  margin-left: var(--sidebar-collapsed);
}

.panel-content {
  padding: 24px;
  min-height: calc(100vh - var(--topbar-h));
}

/* ── SIDEBAR ────────────────────────────────────────────────── */
.sidebar {
  width: var(--sidebar-width);
  background: var(--sidebar-bg);
  height: 100vh;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 100;
  display: flex;
  flex-direction: column;
  transition: width var(--transition);
  overflow: hidden;
}

.sidebar.collapsed {
  width: var(--sidebar-collapsed);
}

/* Logo alanı */
.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 20px 16px;
  border-bottom: 1px solid var(--sidebar-border);
  min-height: var(--topbar-h);
  text-decoration: none;
}

.sidebar-logo-icon {
  width: 36px;
  height: 36px;
  background: var(--brand);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.5px;
}

.sidebar-logo-text {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-white);
  white-space: nowrap;
  opacity: 1;
  transition: opacity var(--transition);
}

.sidebar.collapsed .sidebar-logo-text { opacity: 0; width: 0; overflow: hidden; }

/* Menü */
.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 12px 0;
  scrollbar-width: thin;
  scrollbar-color: #334155 transparent;
}

.sidebar-nav::-webkit-scrollbar { width: 4px; }
.sidebar-nav::-webkit-scrollbar-track { background: transparent; }
.sidebar-nav::-webkit-scrollbar-thumb { background: #334155; border-radius: 99px; }

/* Grup başlığı */
.nav-group { margin-bottom: 4px; }

.nav-group-label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .08em;
  color: var(--sidebar-text);
  text-transform: uppercase;
  padding: 14px 20px 6px;
  white-space: nowrap;
  opacity: 1;
  transition: opacity var(--transition);
}

.sidebar.collapsed .nav-group-label { opacity: 0; }

/* Nav link */
.nav-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 16px;
  margin: 1px 8px;
  border-radius: var(--radius-sm);
  color: var(--sidebar-text);
  font-size: 13.5px;
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
  transition: background var(--transition), color var(--transition);
  position: relative;
}

.nav-link:hover {
  background: var(--sidebar-hover);
  color: var(--sidebar-text-active);
}

.nav-link.active {
  background: var(--brand);
  color: #fff;
}

.nav-link.active .nav-icon { color: #fff; }

.nav-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  color: var(--sidebar-text);
  transition: color var(--transition);
}

.nav-link:hover .nav-icon { color: var(--sidebar-text-active); }

.nav-label {
  opacity: 1;
  transition: opacity var(--transition);
  overflow: hidden;
}

.sidebar.collapsed .nav-label { opacity: 0; width: 0; }

/* Badge (bildirim sayısı) */
.nav-badge {
  margin-left: auto;
  background: var(--brand);
  color: #fff;
  font-size: 10px;
  font-weight: 600;
  padding: 1px 6px;
  border-radius: 99px;
  min-width: 18px;
  text-align: center;
  transition: opacity var(--transition);
}

.sidebar.collapsed .nav-badge { opacity: 0; }

/* Sidebar alt kullanıcı alanı */
.sidebar-user {
  border-top: 1px solid var(--sidebar-border);
  padding: 12px 8px;
}

.sidebar-user-inner {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--transition);
}

.sidebar-user-inner:hover { background: var(--sidebar-hover); }

.sidebar-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--brand);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 600;
  color: #fff;
  flex-shrink: 0;
  overflow: hidden;
}

.sidebar-avatar img { width: 100%; height: 100%; object-fit: cover; }

.sidebar-user-info { overflow: hidden; transition: opacity var(--transition); }
.sidebar.collapsed .sidebar-user-info { opacity: 0; width: 0; overflow: hidden; }

.sidebar-user-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--sidebar-text-active);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-user-role {
  font-size: 11px;
  color: var(--sidebar-text);
  white-space: nowrap;
}

/* ── TOPBAR ─────────────────────────────────────────────────── */
.topbar {
  height: var(--topbar-h);
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 24px;
  gap: 16px;
  position: sticky;
  top: 0;
  z-index: 50;
}

/* Sidebar collapse butonu */
.btn-collapse {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: background var(--transition), color var(--transition);
  flex-shrink: 0;
}

.btn-collapse:hover { background: var(--bg-hover); color: var(--text-primary); }

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-muted);
  flex: 1;
}

.breadcrumb a {
  color: var(--text-muted);
  transition: color var(--transition);
}

.breadcrumb a:hover { color: var(--text-primary); }

.breadcrumb-sep {
  color: var(--border);
  font-size: 12px;
}

.breadcrumb-current {
  color: var(--text-primary);
  font-weight: 500;
}

/* Topbar sağ alan */
.topbar-right {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

.topbar-btn {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: background var(--transition), color var(--transition);
  position: relative;
}

.topbar-btn:hover { background: var(--bg-hover); color: var(--text-primary); }

.topbar-btn-badge {
  position: absolute;
  top: 6px;
  right: 6px;
  width: 8px;
  height: 8px;
  background: var(--danger);
  border-radius: 50%;
  border: 2px solid var(--bg-card);
}

/* Topbar kullanıcı */
.topbar-user {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 8px 4px 4px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--transition);
  border: 1px solid transparent;
}

.topbar-user:hover { background: var(--bg-hover); border-color: var(--border); }

.topbar-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--brand);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 600;
  color: #fff;
  overflow: hidden;
}

.topbar-avatar img { width: 100%; height: 100%; object-fit: cover; }

.topbar-user-name {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
  white-space: nowrap;
}

/* ── PAGE HEADER ────────────────────────────────────────────── */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 12px;
}

.page-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
}

.page-subtitle {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 2px;
}

/* ── KARTLAR ────────────────────────────────────────────────── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow-sm);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.card-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}

/* İstatistik kartları */
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  display: flex;
  align-items: flex-start;
  gap: 16px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition);
}

.stat-card:hover { box-shadow: var(--shadow); }

.stat-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.stat-icon--blue   { background: var(--info-light);    color: var(--info); }
.stat-icon--green  { background: var(--success-light); color: var(--success); }
.stat-icon--amber  { background: var(--warning-light); color: var(--warning); }
.stat-icon--red    { background: var(--danger-light);  color: var(--danger); }
.stat-icon--brand  { background: var(--brand-light);   color: var(--brand); }

.stat-body { flex: 1; min-width: 0; }

.stat-label {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 500;
  margin-bottom: 4px;
}

.stat-value {
  font-size: 26px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1;
  margin-bottom: 6px;
}

.stat-trend {
  font-size: 12px;
  display: flex;
  align-items: center;
  gap: 4px;
}

.stat-trend--up   { color: var(--success); }
.stat-trend--down { color: var(--danger); }

/* Grid sistemleri */
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }

/* ── TABLOLAR ───────────────────────────────────────────────── */
.table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--bg-card);
  box-shadow: var(--shadow-sm);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
}

thead th {
  background: var(--bg-page);
  padding: 11px 16px;
  text-align: left;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: .05em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

tbody td {
  padding: 13px 16px;
  border-bottom: 1px solid var(--border);
  color: var(--text-primary);
  vertical-align: middle;
}

tbody tr:last-child td { border-bottom: none; }

tbody tr:hover td { background: var(--bg-hover); }

/* ── BADGE'LER ──────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  font-weight: 600;
  padding: 3px 9px;
  border-radius: 99px;
  white-space: nowrap;
}

.badge--green  { background: var(--success-light); color: #065F46; }
.badge--red    { background: var(--danger-light);  color: #991B1B; }
.badge--amber  { background: var(--warning-light); color: #92400E; }
.badge--blue   { background: var(--info-light);    color: #1E40AF; }
.badge--gray   { background: #F1F5F9;              color: #475569; }
.badge--brand  { background: var(--brand-light);   color: var(--brand-dark); }

/* ── BUTONLAR ───────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  border: 1px solid transparent;
  text-decoration: none;
}

.btn--primary {
  background: var(--brand);
  color: #fff;
  border-color: var(--brand);
}

.btn--primary:hover {
  background: var(--brand-dark);
  border-color: var(--brand-dark);
  color: #fff;
}

.btn--ghost {
  background: transparent;
  color: var(--text-secondary);
  border-color: var(--border);
}

.btn--ghost:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
  border-color: var(--border);
}

.btn--danger {
  background: var(--danger-light);
  color: var(--danger);
  border-color: transparent;
}

.btn--danger:hover { background: var(--danger); color: #fff; }

.btn--full { width: 100%; justify-content: center; }

.btn--sm { padding: 5px 11px; font-size: 12px; }
.btn--lg { padding: 11px 22px; font-size: 15px; }

.btn-icon {
  width: 34px;
  height: 34px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
}

.btn-icon:hover { background: var(--bg-hover); color: var(--text-primary); }

/* ── FORMLAR ────────────────────────────────────────────────── */
.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.form-label-link {
  font-size: 12px;
  font-weight: 400;
  color: var(--brand);
}

.form-label-link:hover { color: var(--brand-dark); }

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="url"],
input[type="search"],
input[type="date"],
input[type="tel"],
select,
textarea {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  font-family: var(--font);
  color: var(--text-primary);
  background: var(--bg-input);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

input:focus, select:focus, textarea:focus {
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(79,70,229,.12);
}

textarea { resize: vertical; min-height: 100px; }

.input-password-wrapper { position: relative; }
.input-password-wrapper input { padding-right: 40px; }

.btn-show-password {
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  padding: 4px;
  border-radius: 4px;
}

.btn-show-password:hover { color: var(--text-primary); }

.form-group--row {
  display: flex;
  align-items: center;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-secondary);
  cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
  width: 15px;
  height: 15px;
  accent-color: var(--brand);
}

/* ── ALERT / FLASH ──────────────────────────────────────────── */
.alert {
  padding: 11px 14px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  margin-bottom: 14px;
  border: 1px solid transparent;
  display: flex;
  align-items: center;
  gap: 8px;
}

.alert--success { background: var(--success-light); color: #065F46; border-color: #A7F3D0; }
.alert--error   { background: var(--danger-light);  color: #991B1B; border-color: #FECACA; }
.alert--info    { background: var(--info-light);    color: #1E40AF; border-color: #BFDBFE; }
.alert--warning { background: var(--warning-light); color: #92400E; border-color: #FDE68A; }

/* ── AUTH SAYFASI ───────────────────────────────────────────── */
.auth-body {
  background: linear-gradient(135deg, #0F172A 0%, #1E1B4B 100%);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.auth-wrapper {
  width: 100%;
  max-width: 420px;
}

.auth-card {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  padding: 36px 32px;
  box-shadow: var(--shadow-lg);
}

.auth-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 28px;
  text-decoration: none;
}

.auth-logo img { width: 36px; height: 36px; }

.auth-logo span {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
}

.auth-header { margin-bottom: 24px; }

.auth-header h1 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.auth-header p {
  font-size: 13px;
  color: var(--text-muted);
}

.auth-form { display: flex; flex-direction: column; gap: 0; }

.auth-footer {
  text-align: center;
  font-size: 12px;
  color: rgba(255,255,255,.4);
  margin-top: 20px;
}

/* ── DROPDOWN ───────────────────────────────────────────────── */
.dropdown { position: relative; }

.dropdown-menu {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  min-width: 180px;
  z-index: 200;
  overflow: hidden;
  display: none;
}

.dropdown-menu.open { display: block; }

.dropdown-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  font-size: 13px;
  color: var(--text-primary);
  cursor: pointer;
  transition: background var(--transition);
  text-decoration: none;
}

.dropdown-item:hover { background: var(--bg-hover); }
.dropdown-item--danger { color: var(--danger); }
.dropdown-item--danger:hover { background: var(--danger-light); }
.dropdown-sep { border: none; border-top: 1px solid var(--border); margin: 4px 0; }

/* ── MODAL ──────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.5);
  z-index: 300;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: all;
}

.modal {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 480px;
  box-shadow: var(--shadow-lg);
  transform: translateY(-8px);
  transition: transform var(--transition);
}

.modal-overlay.open .modal { transform: translateY(0); }

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px 16px;
  border-bottom: 1px solid var(--border);
}

.modal-title { font-size: 15px; font-weight: 600; }

.modal-body { padding: 20px 24px; }

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding: 16px 24px 20px;
  border-top: 1px solid var(--border);
}

/* ── RESPONSIVE ─────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  :root { --sidebar-width: 0px; }
  .sidebar { transform: translateX(-260px); width: 260px; }
  .sidebar.mobile-open { transform: translateX(0); }
  .panel-main { margin-left: 0; }
  .grid-4, .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .panel-content { padding: 16px; }
}

@media (max-width: 480px) {
  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .auth-card { padding: 28px 20px; }
}