/* ============================================================
   Hosting-Kiralama.com — Tasarım Sistemi
   Lacivert / Mavi / Beyaz · Premium SaaS · Bootstrap 5 üzeri katman
   ============================================================
   Tasarım kararları:
   - Tek kaynak: tüm renk/spacing/radius CSS değişkeninde. Tutarlılık + dark mode kolaylığı.
   - 8px tabanlı spacing ölçeği. Hizalama disiplini.
   - Yumuşak gölgeler + 14px radius: Stripe/Linear hissi.
   - Inter (sistem fallback): nötr, profesyonel, ekran için optimize.
   ============================================================ */

:root {
  /* Marka renkleri */
  --hk-navy: #081C45;          /* hero / sidebar / koyu alanlar */
  --hk-navy-700: #0E2A5E;
  --hk-navy-600: #143a7d;
  --hk-blue: #2563EB;          /* birincil aksiyon */
  --hk-blue-hover: #1D4ED8;
  --hk-blue-soft: #EFF4FF;     /* açık mavi zemin */
  --hk-sky: #38BDF8;

  /* Nötrler */
  --hk-bg: #F6F8FB;            /* sayfa arka planı */
  --hk-surface: #FFFFFF;       /* kart yüzeyi */
  --hk-border: #E6EAF0;
  --hk-text: #0F172A;
  --hk-text-muted: #64748B;
  --hk-text-soft: #94A3B8;

  /* Durum renkleri */
  --hk-success: #16A34A;
  --hk-success-soft: #E9F8EF;
  --hk-warning: #D97706;
  --hk-warning-soft: #FEF4E6;
  --hk-danger: #DC2626;
  --hk-danger-soft: #FDECEC;
  --hk-info: #0EA5E9;
  --hk-info-soft: #E6F6FE;

  /* Yapısal */
  --hk-radius: 14px;
  --hk-radius-sm: 10px;
  --hk-radius-lg: 20px;
  --hk-shadow-sm: 0 1px 2px rgba(15, 23, 42, .04), 0 1px 3px rgba(15, 23, 42, .06);
  --hk-shadow: 0 4px 12px rgba(15, 23, 42, .06), 0 2px 4px rgba(15, 23, 42, .04);
  --hk-shadow-lg: 0 12px 32px rgba(15, 23, 42, .10);
  --hk-sidebar-w: 264px;

  --hk-font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --hk-transition: .18s cubic-bezier(.4, 0, .2, 1);
}

/* ---------- Dark Mode ---------- */
[data-theme="dark"] {
  --hk-bg: #0A1120;
  --hk-surface: #111A2E;
  --hk-border: #1E2A44;
  --hk-text: #E7ECF5;
  --hk-text-muted: #93A1B8;
  --hk-text-soft: #6B7A93;
  --hk-blue-soft: #15233F;
  --hk-shadow-sm: 0 1px 2px rgba(0, 0, 0, .3);
  --hk-shadow: 0 4px 14px rgba(0, 0, 0, .35);
  --hk-shadow-lg: 0 16px 40px rgba(0, 0, 0, .5);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--hk-font);
  background: var(--hk-bg);
  color: var(--hk-text);
  font-size: 14.5px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  transition: background var(--hk-transition), color var(--hk-transition);
}

a { color: var(--hk-blue); text-decoration: none; }
a:hover { color: var(--hk-blue-hover); }

/* ============================================================
   LAYOUT: Sidebar + Topbar + Content
   ============================================================ */
.hk-shell { display: flex; min-height: 100vh; }

.hk-sidebar {
  width: var(--hk-sidebar-w);
  background: var(--hk-navy);
  color: #C7D2E4;
  flex-shrink: 0;
  position: fixed;
  inset: 0 auto 0 0;
  display: flex;
  flex-direction: column;
  z-index: 1040;
  transition: transform var(--hk-transition);
}

.hk-brand {
  display: flex; align-items: center; gap: 10px;
  padding: 20px 22px;
  font-weight: 700; font-size: 17px; color: #fff;
  letter-spacing: -.2px;
}
.hk-brand-mark {
  width: 32px; height: 32px; border-radius: 9px;
  background: linear-gradient(135deg, var(--hk-blue), var(--hk-sky));
  display: grid; place-items: center; color: #fff; font-size: 16px;
  box-shadow: 0 4px 12px rgba(37, 99, 235, .4);
}

.hk-nav { padding: 8px 12px; overflow-y: auto; flex: 1; }
.hk-nav-label {
  font-size: 10.5px; text-transform: uppercase; letter-spacing: .08em;
  color: #5B6B86; padding: 14px 12px 6px; font-weight: 600;
}
.hk-nav-item {
  display: flex; align-items: center; gap: 11px;
  padding: 9px 12px; border-radius: var(--hk-radius-sm);
  color: #AFBDD4; font-weight: 500; font-size: 14px;
  transition: var(--hk-transition); margin-bottom: 2px; cursor: pointer;
}
.hk-nav-item i { width: 18px; text-align: center; font-size: 15px; }
.hk-nav-item:hover { background: rgba(255, 255, 255, .06); color: #fff; }
.hk-nav-item.active {
  background: var(--hk-blue); color: #fff;
  box-shadow: 0 4px 14px rgba(37, 99, 235, .45);
}

.hk-main {
  flex: 1; margin-left: var(--hk-sidebar-w);
  display: flex; flex-direction: column; min-width: 0;
}

.hk-topbar {
  height: 64px; background: var(--hk-surface);
  border-bottom: 1px solid var(--hk-border);
  display: flex; align-items: center; gap: 16px;
  padding: 0 24px; position: sticky; top: 0; z-index: 1030;
}
.hk-topbar-title { font-weight: 650; font-size: 16px; }
.hk-topbar-spacer { flex: 1; }

.hk-content { padding: 26px 24px 40px; max-width: 1400px; width: 100%; }

/* ============================================================
   BİLEŞENLER
   ============================================================ */

/* Kart */
.hk-card {
  background: var(--hk-surface);
  border: 1px solid var(--hk-border);
  border-radius: var(--hk-radius);
  box-shadow: var(--hk-shadow-sm);
  transition: var(--hk-transition);
}
.hk-card-pad { padding: 20px; }
.hk-card-hover:hover { box-shadow: var(--hk-shadow); transform: translateY(-2px); }

/* İstatistik kartı */
.hk-stat {
  display: flex; flex-direction: column; gap: 10px;
  padding: 18px 20px;
}
.hk-stat-top { display: flex; align-items: center; justify-content: space-between; }
.hk-stat-icon {
  width: 42px; height: 42px; border-radius: 11px;
  display: grid; place-items: center; font-size: 18px;
}
.hk-stat-label { color: var(--hk-text-muted); font-size: 13px; font-weight: 500; }
.hk-stat-value { font-size: 26px; font-weight: 720; letter-spacing: -.5px; line-height: 1.1; }
.hk-stat-trend { font-size: 12px; font-weight: 600; display: inline-flex; align-items: center; gap: 4px; }
.hk-stat-trend.up { color: var(--hk-success); }
.hk-stat-trend.down { color: var(--hk-danger); }

/* İkon zemin renkleri */
.bg-blue-soft { background: var(--hk-blue-soft); color: var(--hk-blue); }
.bg-success-soft { background: var(--hk-success-soft); color: var(--hk-success); }
.bg-warning-soft { background: var(--hk-warning-soft); color: var(--hk-warning); }
.bg-danger-soft { background: var(--hk-danger-soft); color: var(--hk-danger); }
.bg-info-soft { background: var(--hk-info-soft); color: var(--hk-info); }

/* Butonlar */
.hk-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  padding: 9px 16px; border-radius: var(--hk-radius-sm);
  font-weight: 600; font-size: 14px; border: 1px solid transparent;
  cursor: pointer; transition: var(--hk-transition); white-space: nowrap;
}
.hk-btn-primary { background: var(--hk-blue); color: #fff; }
.hk-btn-primary:hover { background: var(--hk-blue-hover); color: #fff; box-shadow: 0 6px 16px rgba(37, 99, 235, .35); transform: translateY(-1px); }
.hk-btn-ghost { background: var(--hk-surface); color: var(--hk-text); border-color: var(--hk-border); }
.hk-btn-ghost:hover { background: var(--hk-bg); border-color: var(--hk-text-soft); color: var(--hk-text); }
.hk-btn-danger { background: var(--hk-danger); color: #fff; }
.hk-btn-danger:hover { background: #B91C1C; color: #fff; }
.hk-btn-sm { padding: 6px 11px; font-size: 13px; }

/* Tablo */
.hk-table-wrap { overflow-x: auto; }
.hk-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.hk-table th {
  text-align: left; padding: 12px 16px; color: var(--hk-text-muted);
  font-weight: 600; font-size: 12.5px; text-transform: uppercase;
  letter-spacing: .03em; border-bottom: 1px solid var(--hk-border);
}
.hk-table td { padding: 14px 16px; border-bottom: 1px solid var(--hk-border); vertical-align: middle; }
.hk-table tbody tr { transition: var(--hk-transition); }
.hk-table tbody tr:hover { background: var(--hk-blue-soft); }
.hk-table tbody tr:last-child td { border-bottom: none; }

/* Rozet */
.hk-badge {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 4px 10px; border-radius: 100px; font-size: 12px; font-weight: 600;
}
.hk-badge::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.hk-badge.active, .hk-badge.paid, .hk-badge.success, .hk-badge.completed { color: var(--hk-success); background: var(--hk-success-soft); }
.hk-badge.pending, .hk-badge.unpaid, .hk-badge.processing { color: var(--hk-warning); background: var(--hk-warning-soft); }
.hk-badge.suspended, .hk-badge.cancelled, .hk-badge.failed, .hk-badge.expired { color: var(--hk-danger); background: var(--hk-danger-soft); }
.hk-badge.open, .hk-badge.info { color: var(--hk-info); background: var(--hk-info-soft); }

/* Avatar */
.hk-avatar {
  width: 36px; height: 36px; border-radius: 50%;
  background: linear-gradient(135deg, var(--hk-navy-600), var(--hk-blue));
  color: #fff; display: grid; place-items: center;
  font-weight: 600; font-size: 13px; flex-shrink: 0;
}

/* Form */
.hk-label { display: block; font-weight: 600; font-size: 13.5px; margin-bottom: 6px; color: var(--hk-text); }
.hk-input, .hk-select {
  width: 100%; padding: 10px 13px; font-size: 14px;
  border: 1px solid var(--hk-border); border-radius: var(--hk-radius-sm);
  background: var(--hk-surface); color: var(--hk-text);
  transition: var(--hk-transition); font-family: inherit;
}
.hk-input:focus, .hk-select:focus {
  outline: none; border-color: var(--hk-blue);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, .15);
}
.hk-input-error { border-color: var(--hk-danger) !important; }
.hk-field-error { color: var(--hk-danger); font-size: 12.5px; margin-top: 5px; }
.hk-help { color: var(--hk-text-muted); font-size: 12.5px; margin-top: 5px; }

/* Section başlığı */
.hk-section-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; gap: 12px; flex-wrap: wrap; }
.hk-section-title { font-size: 20px; font-weight: 720; letter-spacing: -.4px; margin: 0; }
.hk-section-sub { color: var(--hk-text-muted); font-size: 13.5px; margin: 2px 0 0; }

.hk-card-title { font-size: 15px; font-weight: 650; margin: 0; }

/* Toast */
.hk-toast-wrap { position: fixed; top: 20px; right: 20px; z-index: 2000; display: flex; flex-direction: column; gap: 10px; }
.hk-toast {
  background: var(--hk-surface); border: 1px solid var(--hk-border);
  border-left: 4px solid var(--hk-blue); border-radius: var(--hk-radius-sm);
  box-shadow: var(--hk-shadow-lg); padding: 13px 16px; min-width: 280px;
  display: flex; align-items: center; gap: 10px;
  animation: hk-slide-in .3s cubic-bezier(.4, 0, .2, 1);
}
.hk-toast.success { border-left-color: var(--hk-success); }
.hk-toast.error { border-left-color: var(--hk-danger); }
@keyframes hk-slide-in { from { opacity: 0; transform: translateX(40px); } to { opacity: 1; transform: translateX(0); } }

/* Skeleton loading */
.hk-skeleton {
  background: linear-gradient(90deg, var(--hk-border) 25%, var(--hk-bg) 50%, var(--hk-border) 75%);
  background-size: 200% 100%; animation: hk-shimmer 1.4s infinite; border-radius: 8px;
}
@keyframes hk-shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

/* Empty state */
.hk-empty { text-align: center; padding: 48px 20px; color: var(--hk-text-muted); }
.hk-empty i { font-size: 38px; color: var(--hk-text-soft); margin-bottom: 12px; }

/* Grid yardımcıları */
.hk-grid { display: grid; gap: 18px; }
.hk-grid-4 { grid-template-columns: repeat(4, 1fr); }
.hk-grid-3 { grid-template-columns: repeat(3, 1fr); }
.hk-grid-2 { grid-template-columns: repeat(2, 1fr); }

/* Mobil menü butonu */
.hk-menu-toggle { display: none; background: none; border: none; font-size: 22px; color: var(--hk-text); cursor: pointer; }
.hk-backdrop { display: none; position: fixed; inset: 0; background: rgba(8, 28, 69, .5); z-index: 1035; }

/* Sayfalama */
.hk-pagination { display: flex; gap: 6px; align-items: center; }
.hk-page-link {
  min-width: 34px; height: 34px; padding: 0 10px; border-radius: 9px;
  display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--hk-border); background: var(--hk-surface);
  color: var(--hk-text); font-size: 13.5px; font-weight: 500; transition: var(--hk-transition);
}
.hk-page-link:hover { border-color: var(--hk-blue); color: var(--hk-blue); }
.hk-page-link.active { background: var(--hk-blue); border-color: var(--hk-blue); color: #fff; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1200px) { .hk-grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 992px) {
  .hk-grid-3, .hk-grid-2 { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .hk-sidebar { transform: translateX(-100%); }
  .hk-sidebar.open { transform: translateX(0); box-shadow: var(--hk-shadow-lg); }
  .hk-main { margin-left: 0; }
  .hk-menu-toggle { display: block; }
  .hk-backdrop.show { display: block; }
  .hk-grid-4 { grid-template-columns: 1fr; }
  .hk-content { padding: 18px 16px 32px; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

/* Klavye erişimi: görünür odak */
:focus-visible { outline: 2px solid var(--hk-blue); outline-offset: 2px; }