/* IDN CRM yonetim paneli - temel duzen ve bilesenler. */

*,
*::before,
*::after { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  font-family: var(--f-family);
  font-size: var(--f-base);
  line-height: 1.5;
  color: var(--c-text);
  background: var(--c-bg);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--c-accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Gorunur odak halkasi: erisilebilirlik icin ASLA kaldirilmaz. */
:focus-visible {
  outline: 2px solid var(--c-accent);
  outline-offset: 2px;
  border-radius: var(--r-sm);
}

/* Ekran okuyucuya ozel metin */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap; border: 0;
}

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

.sidebar {
  width: var(--sidebar-w);
  flex: 0 0 var(--sidebar-w);
  background: var(--c-surface);
  border-right: 1px solid var(--c-border);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
  transition: width .18s ease, flex-basis .18s ease;
  z-index: 40;
}

.layout.is-collapsed .sidebar { width: var(--sidebar-w-collapsed); flex-basis: var(--sidebar-w-collapsed); }
.layout.is-collapsed .sidebar .nav-label,
.layout.is-collapsed .sidebar .nav-section-title,
.layout.is-collapsed .brand-text { display: none; }
.layout.is-collapsed .sidebar .nav-link { justify-content: center; }

.brand {
  display: flex; align-items: center; gap: var(--s-2);
  height: var(--topbar-h);
  padding: 0 var(--s-4);
  border-bottom: 1px solid var(--c-border);
  font-weight: 700; font-size: var(--f-lg); color: var(--c-text);
}
.brand-mark {
  width: 28px; height: 28px; border-radius: 8px;
  background: var(--c-accent); color: #fff;
  display: grid; place-items: center; font-size: var(--f-sm); font-weight: 700;
}

.nav { flex: 1; overflow-y: auto; padding: var(--s-3) var(--s-2); }
.nav-section-title {
  font-size: 11px; text-transform: uppercase; letter-spacing: .06em;
  color: var(--c-text-subtle); padding: var(--s-3) var(--s-2) var(--s-1);
}
.nav-link {
  display: flex; align-items: center; gap: var(--s-3);
  padding: 9px var(--s-3); margin-bottom: 2px;
  border-radius: var(--r-sm);
  color: var(--c-text-muted); font-size: var(--f-sm); font-weight: 500;
}
.nav-link:hover { background: var(--c-surface-muted); color: var(--c-text); text-decoration: none; }
.nav-link.is-active { background: var(--c-accent-soft); color: var(--c-accent); font-weight: 600; }
.nav-icon { width: 18px; text-align: center; flex: 0 0 18px; }

.main { flex: 1; min-width: 0; display: flex; flex-direction: column; }

.topbar {
  height: var(--topbar-h);
  display: flex; align-items: center; gap: var(--s-3);
  padding: 0 var(--s-5);
  background: var(--c-surface);
  border-bottom: 1px solid var(--c-border);
  position: sticky; top: 0; z-index: 30;
}
.topbar-spacer { flex: 1; }

.content { padding: var(--s-5); flex: 1; }

.page-head {
  display: flex; align-items: flex-start; gap: var(--s-4);
  margin-bottom: var(--s-4); flex-wrap: wrap;
}
.page-title { font-size: var(--f-2xl); font-weight: 700; margin: 0; }
.page-subtitle { color: var(--c-text-muted); font-size: var(--f-sm); margin: var(--s-1) 0 0; }
.page-actions { margin-left: auto; display: flex; gap: var(--s-2); flex-wrap: wrap; }

.breadcrumb { font-size: var(--f-xs); color: var(--c-text-subtle); margin-bottom: var(--s-1); }
.breadcrumb a { color: var(--c-text-muted); }

/* ---------- Kart ---------- */
.card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  box-shadow: var(--sh-sm);
}
.card + .card { margin-top: var(--s-4); }
.card-head {
  display: flex; align-items: center; gap: var(--s-3);
  padding: var(--s-3) var(--s-4);
  border-bottom: 1px solid var(--c-border);
}
.card-title { font-size: var(--f-base); font-weight: 600; margin: 0; }
.card-body { padding: var(--s-4); }
.card-body.is-flush { padding: 0; }

/* ---------- Izgara ---------- */
.grid { display: grid; gap: var(--s-4); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }

@media (max-width: 1280px) { .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 1024px) {
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .sidebar { position: fixed; left: 0; transform: translateX(-100%); }
  .layout.is-drawer-open .sidebar { transform: translateX(0); box-shadow: var(--sh-lg); }
  .content { padding: var(--s-4); }
}
@media (max-width: 640px) {
  .grid-4 { grid-template-columns: 1fr; }
  .page-actions { width: 100%; }
}