/* =========================================================
   SunucuBayim - Design System
   Koyu lacivert / gece mavisi tema + elektrik mavisi / cyan vurgu
   ========================================================= */

:root {
  /* Renk token'ları */
  --sb-primary: #2E6BFF;
  --sb-primary-dark: #1B4FD6;
  --sb-secondary: #0B1730;
  --sb-accent: #22D3EE;
  --sb-success: #22C55E;
  --sb-warning: #F59E0B;
  --sb-danger: #EF4444;

  --sb-bg: #070D1F;
  --sb-surface: #0F1B38;
  --sb-surface-2: #14204A;
  --sb-border: #223159;
  --sb-muted: #4A5A85;

  --sb-text-primary: #F3F6FF;
  --sb-text-secondary: #A9B6DA;

  --sb-gradient: linear-gradient(135deg, #2E6BFF 0%, #7C3AED 50%, #22D3EE 100%);

  --sb-radius-sm: 8px;
  --sb-radius-md: 14px;
  --sb-radius-lg: 22px;

  --sb-shadow-md: 0 8px 30px rgba(4, 10, 30, 0.45);
  --sb-shadow-lg: 0 20px 60px rgba(4, 10, 30, 0.55);

  --sb-font: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --sb-header-h: 76px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--sb-font);
  background: var(--sb-bg);
  color: var(--sb-text-primary);
  -webkit-font-smoothing: antialiased;
  line-height: 1.55;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }

h1, h2, h3, h4 { margin: 0 0 .5em; font-weight: 700; letter-spacing: -0.02em; }
h1 { font-size: clamp(2rem, 4vw, 3rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); }
h3 { font-size: 1.25rem; }
p { margin: 0 0 1em; color: var(--sb-text-secondary); }

.container { width: 100%; max-width: 1280px; margin: 0 auto; padding: 0 20px; }

/* Focus state -- erişilebilirlik için kaldırılmaz */
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--sb-accent);
  outline-offset: 2px;
}

/* ---------- Butonlar ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 22px; border-radius: var(--sb-radius-sm);
  font-weight: 600; font-size: .95rem; border: 1px solid transparent;
  cursor: pointer; transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--sb-gradient); color: #fff; box-shadow: var(--sb-shadow-md); }
.btn-primary:hover { box-shadow: 0 12px 36px rgba(46,107,255,.45); }
.btn-outline { background: transparent; border-color: var(--sb-border); color: var(--sb-text-primary); }
.btn-outline:hover { border-color: var(--sb-accent); color: var(--sb-accent); }
.btn-ghost { background: rgba(255,255,255,.04); color: var(--sb-text-primary); }
.btn-sm { padding: 8px 14px; font-size: .85rem; }
.btn-block { width: 100%; }
.btn-danger { background: var(--sb-danger); color: #fff; }

/* ---------- Kart ---------- */
.card {
  background: var(--sb-surface);
  border: 1px solid var(--sb-border);
  border-radius: var(--sb-radius-md);
  padding: 24px;
}
.card-hover { transition: transform .2s ease, border-color .2s ease; }
.card-hover:hover { transform: translateY(-4px); border-color: var(--sb-primary); }

/* ---------- Header / Mega Menu ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  height: var(--sb-header-h);
  background: rgba(7, 13, 31, 0.85);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--sb-border);
}
.site-header .container { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.25rem; color: #fff; }
.logo .dot { width: 10px; height: 10px; border-radius: 50%; background: var(--sb-gradient); }

.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav > ul { display: flex; gap: 4px; }
.main-nav > ul > li { position: relative; }
.nav-link {
  display: flex; align-items: center; gap: 6px;
  padding: 10px 14px; border-radius: var(--sb-radius-sm);
  font-weight: 500; font-size: .92rem; color: var(--sb-text-secondary);
}
.nav-link:hover, .nav-link[aria-expanded="true"] { color: #fff; background: rgba(255,255,255,.05); }

.mega-panel {
  position: absolute; top: calc(100% + 10px); left: 0;
  min-width: 560px; background: var(--sb-surface-2);
  border: 1px solid var(--sb-border); border-radius: var(--sb-radius-md);
  box-shadow: var(--sb-shadow-lg); padding: 22px;
  display: none; grid-template-columns: repeat(2, 1fr); gap: 8px 24px;
}
.main-nav li.open .mega-panel { display: grid; }
.mega-panel a { display: block; padding: 8px 10px; border-radius: 8px; color: var(--sb-text-secondary); font-size: .9rem; }
.mega-panel a:hover { background: rgba(255,255,255,.05); color: #fff; }
.mega-col-title { font-size: .75rem; text-transform: uppercase; letter-spacing: .08em; color: var(--sb-muted); padding: 8px 10px 4px; }

.header-actions { display: flex; align-items: center; gap: 10px; }
.icon-btn { position: relative; width: 40px; height: 40px; display: flex; align-items: center; justify-content: center; border-radius: 50%; background: rgba(255,255,255,.05); }
.badge-count {
  position: absolute; top: -4px; right: -4px; background: var(--sb-accent); color: #06111f;
  font-size: .65rem; font-weight: 700; border-radius: 999px; min-width: 18px; height: 18px;
  display: flex; align-items: center; justify-content: center; padding: 0 4px;
}

.mobile-toggle { display: none; }

/* ---------- Hero ---------- */
.hero {
  padding: 72px 0 60px; position: relative; overflow: hidden;
  background: radial-gradient(1200px 500px at 20% -10%, rgba(46,107,255,.25), transparent),
              radial-gradient(900px 400px at 90% 10%, rgba(34,211,238,.18), transparent);
}
.hero-inner { text-align: center; max-width: 760px; margin: 0 auto; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px; padding: 6px 14px;
  border: 1px solid var(--sb-border); border-radius: 999px; font-size: .8rem;
  color: var(--sb-accent); margin-bottom: 20px; background: rgba(34,211,238,.06);
}
.domain-search { display: flex; gap: 10px; max-width: 620px; margin: 32px auto 14px; background: var(--sb-surface); border: 1px solid var(--sb-border); border-radius: var(--sb-radius-md); padding: 8px; }
.domain-search input { flex: 1; background: transparent; border: none; color: #fff; padding: 12px 14px; font-size: 1rem; }
.domain-search input:focus { outline: none; }
.tld-chip-row { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin-top: 16px; }
.tld-chip { padding: 6px 12px; border: 1px solid var(--sb-border); border-radius: 999px; font-size: .8rem; color: var(--sb-text-secondary); }

/* ---------- Bölüm başlığı ---------- */
.section { padding: 64px 0; }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 40px; }
.eyebrow { color: var(--sb-accent); font-weight: 700; font-size: .8rem; text-transform: uppercase; letter-spacing: .1em; }

/* ---------- Kategori grid ---------- */
.category-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; }
.category-card { display: flex; flex-direction: column; gap: 10px; }
.category-icon { width: 44px; height: 44px; border-radius: 12px; background: var(--sb-gradient); display: flex; align-items: center; justify-content: center; }

/* ---------- Paket kartları ---------- */
.package-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 22px; }
.package-card { position: relative; display: flex; flex-direction: column; }
.package-card.featured { border-color: var(--sb-primary); box-shadow: 0 0 0 1px var(--sb-primary), var(--sb-shadow-lg); }
.badge-popular {
  position: absolute; top: -12px; left: 24px; background: var(--sb-gradient); color: #fff;
  font-size: .72rem; font-weight: 700; padding: 5px 12px; border-radius: 999px;
}
.price-row { display: flex; align-items: baseline; gap: 8px; margin: 14px 0; }
.price-old { color: var(--sb-muted); text-decoration: line-through; font-size: .95rem; }
.price-new { font-size: 2rem; font-weight: 800; color: #fff; }
.price-period { color: var(--sb-text-secondary); font-size: .85rem; }
.spec-list { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 14px; margin: 16px 0; font-size: .85rem; }
.spec-list li { color: var(--sb-text-secondary); display: flex; justify-content: space-between; border-bottom: 1px dashed var(--sb-border); padding-bottom: 6px; }
.feature-list { margin: 12px 0 20px; display: flex; flex-direction: column; gap: 8px; font-size: .88rem; }
.feature-list li { display: flex; align-items: center; gap: 8px; color: var(--sb-text-secondary); }
.feature-list li svg { color: var(--sb-success); flex-shrink: 0; }

/* ---------- Form ---------- */
.form-group { margin-bottom: 18px; }
.form-label { display: block; font-size: .85rem; font-weight: 600; margin-bottom: 6px; color: var(--sb-text-secondary); }
.form-control {
  width: 100%; padding: 12px 14px; border-radius: var(--sb-radius-sm);
  background: var(--sb-surface); border: 1px solid var(--sb-border); color: #fff; font-size: .95rem;
}
.form-control:focus { outline: none; border-color: var(--sb-primary); box-shadow: 0 0 0 3px rgba(46,107,255,.2); }
.form-hint { font-size: .78rem; color: var(--sb-muted); margin-top: 4px; }
.form-error { font-size: .78rem; color: var(--sb-danger); margin-top: 4px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 640px) { .form-row { grid-template-columns: 1fr; } }
.checkbox-row { display: flex; align-items: center; gap: 8px; font-size: .85rem; color: var(--sb-text-secondary); }

/* ---------- Alert / Toast / Skeleton ---------- */
.alert { padding: 14px 16px; border-radius: var(--sb-radius-sm); border: 1px solid; margin-bottom: 18px; font-size: .9rem; }
.alert-success { background: rgba(34,197,94,.08); border-color: var(--sb-success); color: #86efac; }
.alert-error { background: rgba(239,68,68,.08); border-color: var(--sb-danger); color: #fca5a5; }
.alert-info { background: rgba(46,107,255,.08); border-color: var(--sb-primary); color: #a9c1ff; }

.toast-stack { position: fixed; bottom: 20px; right: 20px; display: flex; flex-direction: column; gap: 10px; z-index: 999; }
.toast { background: var(--sb-surface-2); border: 1px solid var(--sb-border); border-radius: var(--sb-radius-sm); padding: 12px 16px; box-shadow: var(--sb-shadow-md); font-size: .88rem; animation: sb-toast-in .2s ease; }
@keyframes sb-toast-in { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }

.skeleton { background: linear-gradient(90deg, var(--sb-surface) 25%, var(--sb-surface-2) 37%, var(--sb-surface) 63%); background-size: 400% 100%; animation: sb-skeleton 1.4s ease infinite; border-radius: 8px; }
@keyframes sb-skeleton { 0% { background-position: 100% 50%; } 100% { background-position: 0 50%; } }

.badge { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: .72rem; font-weight: 700; }
.badge-operational { background: rgba(34,197,94,.12); color: #4ade80; }
.badge-degraded { background: rgba(245,158,11,.12); color: #fbbf24; }
.badge-outage { background: rgba(239,68,68,.12); color: #f87171; }
.badge-maintenance { background: rgba(46,107,255,.12); color: #93b4ff; }

/* ---------- Tablo / Mobil kart dönüşümü ---------- */
.table { width: 100%; border-collapse: collapse; }
.table th, .table td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--sb-border); font-size: .88rem; }
.table th { color: var(--sb-muted); font-weight: 600; text-transform: uppercase; font-size: .72rem; letter-spacing: .05em; }
@media (max-width: 720px) {
  .table thead { display: none; }
  .table, .table tbody, .table tr, .table td { display: block; width: 100%; }
  .table tr { border: 1px solid var(--sb-border); border-radius: var(--sb-radius-sm); margin-bottom: 12px; padding: 10px; }
  .table td { border: none; display: flex; justify-content: space-between; gap: 10px; }
  .table td::before { content: attr(data-label); color: var(--sb-muted); font-weight: 600; }
}

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--sb-border); padding: 56px 0 24px; background: var(--sb-surface); }
.footer-grid { display: grid; grid-template-columns: 1.6fr repeat(5, 1fr); gap: 28px; }
.footer-col h4 { font-size: .82rem; text-transform: uppercase; letter-spacing: .06em; color: var(--sb-muted); margin-bottom: 14px; }
.footer-col a { display: block; padding: 5px 0; color: var(--sb-text-secondary); font-size: .88rem; }
.footer-col a:hover { color: var(--sb-accent); }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; margin-top: 40px; padding-top: 20px; border-top: 1px solid var(--sb-border); font-size: .82rem; color: var(--sb-muted); flex-wrap: wrap; gap: 12px; }
.payment-icons { display: flex; gap: 8px; }
.payment-icons span { padding: 4px 8px; border: 1px solid var(--sb-border); border-radius: 6px; font-size: .7rem; color: var(--sb-muted); }

@media (max-width: 980px) {
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ---------- Mobil navigasyon ---------- */
@media (max-width: 980px) {
  .main-nav { position: fixed; inset: var(--sb-header-h) 0 0 0; background: var(--sb-bg); flex-direction: column; align-items: stretch; padding: 20px; overflow-y: auto; display: none; }
  .main-nav.open { display: flex; }
  .main-nav > ul { flex-direction: column; width: 100%; }
  .mega-panel { position: static; display: none; grid-template-columns: 1fr; box-shadow: none; border: none; background: rgba(255,255,255,.02); }
  .main-nav li.open .mega-panel { display: grid; }
  .mobile-toggle { display: flex; width: 40px; height: 40px; align-items: center; justify-content: center; border-radius: 8px; background: rgba(255,255,255,.05); }
}

/* ---------- Admin panel ---------- */
.admin-shell { display: grid; grid-template-columns: 260px 1fr; min-height: 100vh; }
.admin-sidebar { background: var(--sb-surface); border-right: 1px solid var(--sb-border); padding: 20px 14px; }
.admin-sidebar a { display: flex; align-items: center; gap: 10px; padding: 10px 12px; border-radius: var(--sb-radius-sm); color: var(--sb-text-secondary); font-size: .88rem; margin-bottom: 2px; }
.admin-sidebar a:hover, .admin-sidebar a.active { background: rgba(46,107,255,.12); color: #fff; }
.admin-sidebar .group-title { font-size: .7rem; text-transform: uppercase; color: var(--sb-muted); margin: 18px 12px 8px; letter-spacing: .06em; }
.admin-main { padding: 28px 32px; }
.admin-topbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px; }
.kpi-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin-bottom: 32px; }
.kpi-card { background: var(--sb-surface); border: 1px solid var(--sb-border); border-radius: var(--sb-radius-md); padding: 18px; }
.kpi-value { font-size: 1.7rem; font-weight: 800; margin: 6px 0; }
.kpi-label { font-size: .78rem; color: var(--sb-muted); text-transform: uppercase; letter-spacing: .05em; }

@media (max-width: 900px) {
  .admin-shell { grid-template-columns: 1fr; }
  .admin-sidebar { display: none; }
}

.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.flex { display: flex; }
.gap-8 { gap: 8px; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.w-full { width: 100%; }