/* =============================================================
   ShieldeDNS — Main Stylesheet
   ============================================================= */

@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,400;0,9..40,500;0,9..40,600;0,9..40,700;1,9..40,400&family=DM+Mono:wght@400;500&display=swap');

/* ── Variables ─────────────────────────────────────────────── */
:root {
  --blue:        #2563eb;
  --blue-dark:   #1d4ed8;
  --blue-light:  #eff6ff;
  --blue-mid:    #bfdbfe;
  --green:       #16a34a;
  --green-light: #f0fdf4;
  --red:         #dc2626;
  --red-light:   #fef2f2;
  --yellow:      #d97706;
  --yellow-light:#fffbeb;
  --gray-50:     #f8fafc;
  --gray-100:    #f1f5f9;
  --gray-200:    #e2e8f0;
  --gray-300:    #cbd5e1;
  --gray-400:    #94a3b8;
  --gray-500:    #64748b;
  --gray-600:    #475569;
  --gray-700:    #334155;
  --gray-800:    #1e293b;
  --gray-900:    #0f172a;
  --sidebar-w:   248px;
  --radius:      10px;
  --shadow-sm:   0 1px 3px rgba(0,0,0,.08);
  --shadow:      0 4px 16px rgba(0,0,0,.08);
  --shadow-lg:   0 8px 32px rgba(0,0,0,.12);
  --transition:  .18s ease;
}

/* ── Reset ─────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: 'DM Sans', system-ui, sans-serif;
  font-size: 15px;
  color: var(--gray-800);
  background: #fff;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }
button { cursor: pointer; font-family: inherit; }
input, select, textarea { font-family: inherit; }

/* ── Container ─────────────────────────────────────────────── */
.container { max-width: 1160px; margin: 0 auto; padding: 0 24px; }

/* ── Navbar (public) ───────────────────────────────────────── */
.navbar {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-100);
}
.navbar .container {
  display: flex; align-items: center; gap: 24px; height: 64px;
}
.navbar-brand {
  display: flex; align-items: center; gap: 8px;
  font-size: 1.2rem; font-weight: 700; color: var(--gray-900);
  text-decoration: none; flex-shrink: 0;
}
.brand-icon { font-size: 1.3rem; }
.navbar-links {
  display: flex; align-items: center; gap: 4px; flex: 1;
}
.navbar-links a {
  padding: 6px 12px; border-radius: 6px;
  color: var(--gray-600); font-weight: 500; font-size: .9rem;
  transition: color var(--transition), background var(--transition);
  text-decoration: none;
}
.navbar-links a:hover { color: var(--gray-900); background: var(--gray-100); }
.navbar-actions { display: flex; align-items: center; gap: 8px; margin-left: auto; }

/* ── Lang switcher ─────────────────────────────────────────── */
.lang-switcher { display: flex; gap: 4px; }
.lang-btn {
  padding: 4px 10px; border-radius: 6px; border: 1px solid var(--gray-200);
  background: transparent; color: var(--gray-500); font-size: .8rem; font-weight: 600;
  transition: all var(--transition);
}
.lang-btn:hover, .lang-btn.active {
  background: var(--blue); color: #fff; border-color: var(--blue);
}

/* ── Buttons ───────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 10px 20px; border-radius: var(--radius); border: none;
  font-size: .9rem; font-weight: 600; line-height: 1; cursor: pointer;
  transition: all var(--transition); text-decoration: none; white-space: nowrap;
}
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: var(--blue-dark); transform: translateY(-1px); box-shadow: 0 4px 12px rgba(37,99,235,.35); }
.btn-outline { background: transparent; color: var(--blue); border: 1.5px solid var(--blue); }
.btn-outline:hover { background: var(--blue); color: #fff; }
.btn-ghost { background: transparent; color: var(--gray-600); }
.btn-ghost:hover { background: var(--gray-100); color: var(--gray-900); }
.btn-danger { background: var(--red); color: #fff; }
.btn-danger:hover { background: #b91c1c; }
.btn-success { background: var(--green); color: #fff; }
.btn-sm { padding: 6px 12px; font-size: .82rem; }
.btn-lg { padding: 14px 28px; font-size: 1rem; }
.btn-block { width: 100%; }
.btn:disabled { opacity: .5; cursor: not-allowed; transform: none !important; }

/* ── Forms ─────────────────────────────────────────────────── */
.form-group { margin-bottom: 18px; }
.form-label {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 6px; font-size: .875rem; font-weight: 600; color: var(--gray-700);
}
.form-control {
  width: 100%; padding: 10px 14px; border-radius: var(--radius);
  border: 1.5px solid var(--gray-200); background: #fff;
  font-size: .9rem; color: var(--gray-900);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form-control:focus {
  outline: none; border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(37,99,235,.12);
}
.form-control.error { border-color: var(--red); }
.form-error { color: var(--red); font-size: .8rem; margin-top: 4px; }
.form-hint { color: var(--gray-400); font-size: .8rem; margin-top: 4px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-check { display: flex; align-items: flex-start; gap: 10px; cursor: pointer; }
.form-check input { margin-top: 2px; accent-color: var(--blue); width: 16px; height: 16px; cursor: pointer; }
select.form-control { cursor: pointer; }

/* ── Alerts ────────────────────────────────────────────────── */
.alert {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 16px; border-radius: var(--radius); margin-bottom: 20px;
  font-size: .875rem; font-weight: 500;
}
.alert-icon { font-weight: 700; font-size: 1rem; flex-shrink: 0; }
.alert-success { background: var(--green-light); color: var(--green); border: 1px solid #bbf7d0; }
.alert-error   { background: var(--red-light);   color: var(--red);   border: 1px solid #fecaca; }
.alert-warning { background: var(--yellow-light); color: var(--yellow); border: 1px solid #fde68a; }
.alert-info    { background: var(--blue-light);   color: var(--blue);   border: 1px solid var(--blue-mid); }

/* ── Cards ─────────────────────────────────────────────────── */
.card {
  background: #fff; border-radius: 14px;
  border: 1px solid var(--gray-200); box-shadow: var(--shadow-sm);
}
.card-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px 24px; border-bottom: 1px solid var(--gray-100);
}
.card-header h2, .card-header h3 { font-size: 1rem; font-weight: 700; color: var(--gray-900); }
.card-body { padding: 24px; }

/* ── Tables ────────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .875rem; }
th {
  text-align: left; padding: 10px 16px;
  background: var(--gray-50); color: var(--gray-500);
  font-size: .75rem; font-weight: 700; letter-spacing: .04em; text-transform: uppercase;
  border-bottom: 1px solid var(--gray-200);
}
td {
  padding: 14px 16px; border-bottom: 1px solid var(--gray-100);
  color: var(--gray-700); vertical-align: middle;
}
tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--gray-50); }
.td-mono { font-family: 'DM Mono', monospace; font-size: .82rem; color: var(--gray-600); }

/* ── Badges ────────────────────────────────────────────────── */
.badge {
  display: inline-flex; align-items: center; padding: 3px 10px;
  border-radius: 99px; font-size: .75rem; font-weight: 700; letter-spacing: .03em;
}
.badge-green   { background: var(--green-light); color: var(--green); }
.badge-blue    { background: var(--blue-light);  color: var(--blue); }
.badge-yellow  { background: var(--yellow-light); color: var(--yellow); }
.badge-red     { background: var(--red-light);   color: var(--red); }
.badge-gray    { background: var(--gray-100);    color: var(--gray-500); }

/* ── Stat cards ────────────────────────────────────────────── */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 16px; margin-bottom: 28px; }
.stat-card {
  background: #fff; border: 1px solid var(--gray-200);
  border-radius: 14px; padding: 22px 24px;
  box-shadow: var(--shadow-sm);
}
.stat-icon { width: 40px; height: 40px; border-radius: 10px; display: flex; align-items: center; justify-content: center; margin-bottom: 14px; font-size: 1.1rem; }
.stat-icon.blue   { background: var(--blue-light); }
.stat-icon.green  { background: var(--green-light); }
.stat-icon.yellow { background: var(--yellow-light); }
.stat-value { font-size: 2rem; font-weight: 700; color: var(--gray-900); line-height: 1; }
.stat-label { color: var(--gray-500); font-size: .82rem; margin-top: 4px; }

/* ── Auth pages ────────────────────────────────────────────── */
.auth-page {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  padding: 40px 20px; background: linear-gradient(135deg, #f0f7ff 0%, #fff 60%);
}
.auth-logo { text-align: center; margin-bottom: 24px; }
.auth-logo a { font-size: 1.4rem; font-weight: 800; color: var(--gray-900); text-decoration: none; display: inline-flex; align-items: center; gap: 8px; }
.auth-card { background: #fff; border-radius: 16px; box-shadow: var(--shadow-lg); border: 1px solid var(--gray-100); overflow: hidden; }
.auth-header { padding: 32px 32px 24px; text-align: center; }
.auth-header h1 { font-size: 1.5rem; font-weight: 800; color: var(--gray-900); margin-bottom: 6px; }
.auth-header p  { color: var(--gray-500); font-size: .9rem; }
.auth-body { padding: 0 32px 28px; }
.auth-footer { padding: 18px 32px; background: var(--gray-50); border-top: 1px solid var(--gray-100); text-align: center; font-size: .875rem; color: var(--gray-500); }
.auth-footer a { color: var(--blue); font-weight: 600; }
.auth-divider { display: flex; align-items: center; gap: 12px; margin: 20px 0; color: var(--gray-400); font-size: .8rem; }
.auth-divider::before, .auth-divider::after { content: ''; flex: 1; height: 1px; background: var(--gray-200); }

/* ── Panel layout ──────────────────────────────────────────── */
.panel-body { background: var(--gray-50); }
.panel-layout { display: flex; min-height: 100vh; }

.sidebar {
  width: var(--sidebar-w); background: var(--gray-900); color: #fff;
  display: flex; flex-direction: column; flex-shrink: 0;
  position: fixed; top: 0; left: 0; height: 100vh; z-index: 200;
  transition: transform var(--transition);
}
.sidebar-logo {
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px 20px 16px;
}
.sidebar-logo a {
  display: flex; align-items: center; gap: 8px;
  font-size: 1.05rem; font-weight: 700; color: #fff; text-decoration: none;
}
.sidebar-close { display: none; background: none; border: none; color: var(--gray-400); font-size: 1.2rem; }
.sidebar-nav { flex: 1; padding: 8px 12px; overflow-y: auto; }
.nav-divider { padding: 16px 8px 6px; }
.nav-divider span { font-size: .7rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: var(--gray-500); }
.nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px; border-radius: 8px; margin-bottom: 2px;
  color: var(--gray-400); font-weight: 500; font-size: .9rem;
  transition: all var(--transition); text-decoration: none;
}
.nav-item:hover { background: rgba(255,255,255,.08); color: #fff; }
.nav-item.active { background: var(--blue); color: #fff; }
.sidebar-footer { padding: 16px; border-top: 1px solid rgba(255,255,255,.08); }
.sidebar-user { display: flex; align-items: center; gap: 12px; }
.user-avatar {
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--blue); display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: .9rem; color: #fff; flex-shrink: 0;
}
.user-name { font-size: .875rem; font-weight: 600; color: #fff; line-height: 1.2; }
.user-logout { font-size: .78rem; color: var(--gray-500); text-decoration: none; }
.user-logout:hover { color: var(--gray-300); }

.panel-main { margin-left: var(--sidebar-w); flex: 1; display: flex; flex-direction: column; min-width: 0; }
.panel-header {
  display: flex; align-items: center; gap: 16px; padding: 0 28px;
  height: 60px; background: #fff; border-bottom: 1px solid var(--gray-200);
  position: sticky; top: 0; z-index: 100;
}
.panel-title { font-size: 1rem; font-weight: 700; color: var(--gray-900); }
.menu-toggle { display: none; background: none; border: none; color: var(--gray-600); padding: 4px; border-radius: 6px; }
.panel-content { padding: 28px; flex: 1; }

/* ── Page header ────────────────────────────────────────────── */
.page-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 24px; flex-wrap: wrap; gap: 12px; }
.page-header h2 { font-size: 1.25rem; font-weight: 800; color: var(--gray-900); }

/* ── Domain cards ──────────────────────────────────────────── */
.domain-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px; margin-top: 16px; }
.domain-card {
  background: #fff; border: 1px solid var(--gray-200);
  border-radius: 14px; padding: 20px;
  display: flex; flex-direction: column; gap: 12px;
  box-shadow: var(--shadow-sm); transition: box-shadow var(--transition), border-color var(--transition);
}
.domain-card:hover { box-shadow: var(--shadow); border-color: var(--blue-mid); }
.domain-name { font-family: 'DM Mono', monospace; font-size: .95rem; font-weight: 500; color: var(--gray-900); word-break: break-all; }
.domain-meta { display: flex; align-items: center; gap: 8px; }
.domain-actions { display: flex; gap: 8px; margin-top: 4px; }

/* ── NS box ────────────────────────────────────────────────── */
.ns-box { background: var(--blue-light); border: 1px solid var(--blue-mid); border-radius: 10px; padding: 16px 20px; margin-bottom: 24px; }
.ns-box p { font-size: .82rem; color: var(--blue-dark); font-weight: 600; margin-bottom: 8px; }
.ns-list { display: flex; gap: 12px; flex-wrap: wrap; }
.ns-tag {
  font-family: 'DM Mono', monospace; font-size: .82rem;
  background: var(--blue); color: #fff; border-radius: 6px; padding: 4px 10px;
}

/* ── Quota bar ──────────────────────────────────────────────── */
.quota-bar { background: var(--gray-100); border-radius: 99px; height: 6px; overflow: hidden; margin-top: 6px; }
.quota-fill { height: 100%; background: var(--blue); border-radius: 99px; transition: width .4s ease; }

/* ── DNS record form ────────────────────────────────────────── */
.dns-form-row { display: grid; grid-template-columns: 120px 1fr 1fr 100px 100px auto; gap: 8px; align-items: end; }

/* ── Modal ─────────────────────────────────────────────────── */
.modal-overlay {
  display: none; position: fixed; inset: 0; z-index: 500;
  background: rgba(0,0,0,.4); backdrop-filter: blur(4px);
  align-items: center; justify-content: center; padding: 20px;
}
.modal-overlay.open { display: flex; }
.modal {
  background: #fff; border-radius: 16px; box-shadow: var(--shadow-lg);
  width: 100%; max-width: 520px; max-height: 90vh; overflow-y: auto;
  animation: modalIn .22s ease;
}
@keyframes modalIn { from { opacity: 0; transform: scale(.94) translateY(8px); } to { opacity: 1; transform: none; } }
.modal-header { display: flex; align-items: center; justify-content: space-between; padding: 20px 24px; border-bottom: 1px solid var(--gray-100); }
.modal-header h3 { font-size: 1.05rem; font-weight: 700; }
.modal-close { background: none; border: none; color: var(--gray-400); font-size: 1.2rem; line-height: 1; }
.modal-body { padding: 24px; }
.modal-footer { padding: 16px 24px; border-top: 1px solid var(--gray-100); display: flex; justify-content: flex-end; gap: 10px; }

/* ── QR code box ────────────────────────────────────────────── */
.qr-wrap { text-align: center; margin: 16px 0; }
.qr-wrap img { display: inline-block; border-radius: 10px; border: 4px solid #fff; box-shadow: var(--shadow); }
.totp-secret { font-family: 'DM Mono', monospace; background: var(--gray-100); border-radius: 8px; padding: 10px 14px; font-size: .85rem; text-align: center; word-break: break-all; color: var(--gray-700); }

/* ── Banners ────────────────────────────────────────────────── */
.banner-zone { margin: 16px 0; text-align: center; }
.banner-zone img { max-width: 100%; border-radius: var(--radius); }
.banner-top { margin-bottom: 20px; }
.banner-sidebar { margin-top: 20px; }

/* ── Landing page ───────────────────────────────────────────── */
.hero {
  padding: 100px 0 80px;
  text-align: center;
  background: radial-gradient(ellipse 80% 50% at 50% -10%, #dbeafe 0%, transparent 70%);
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--blue-light); color: var(--blue);
  border: 1px solid var(--blue-mid); border-radius: 99px;
  padding: 5px 14px; font-size: .8rem; font-weight: 700;
  margin-bottom: 24px; letter-spacing: .03em;
}
.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.5rem); font-weight: 800; letter-spacing: -.03em;
  line-height: 1.12; color: var(--gray-900); margin-bottom: 20px;
  max-width: 800px; margin-left: auto; margin-right: auto;
}
.hero h1 span { color: var(--blue); }
.hero p { font-size: 1.1rem; color: var(--gray-500); max-width: 560px; margin: 0 auto 36px; }
.hero-cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.hero-stats { display: flex; justify-content: center; gap: 40px; margin-top: 60px; flex-wrap: wrap; }
.hero-stat-value { font-size: 2rem; font-weight: 800; color: var(--gray-900); }
.hero-stat-label { font-size: .82rem; color: var(--gray-500); }

.features { padding: 80px 0; }
.section-title { text-align: center; margin-bottom: 56px; }
.section-title .label { font-size: .8rem; font-weight: 700; text-transform: uppercase; letter-spacing: .1em; color: var(--blue); margin-bottom: 12px; }
.section-title h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 800; letter-spacing: -.02em; color: var(--gray-900); }
.section-title p { color: var(--gray-500); margin-top: 12px; font-size: .95rem; }

.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }
.feature-card {
  padding: 28px; border-radius: 16px; border: 1px solid var(--gray-200);
  background: #fff; transition: box-shadow var(--transition), border-color var(--transition);
}
.feature-card:hover { box-shadow: var(--shadow); border-color: var(--blue-mid); }
.feature-icon { width: 48px; height: 48px; border-radius: 12px; background: var(--blue-light); display: flex; align-items: center; justify-content: center; font-size: 1.4rem; margin-bottom: 16px; }
.feature-card h3 { font-size: 1rem; font-weight: 700; color: var(--gray-900); margin-bottom: 8px; }
.feature-card p  { font-size: .875rem; color: var(--gray-500); line-height: 1.65; }

.steps { padding: 80px 0; background: var(--gray-50); }
.steps-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 32px; }
.step { text-align: center; }
.step-num {
  width: 52px; height: 52px; border-radius: 50%;
  background: var(--blue); color: #fff; font-weight: 800; font-size: 1.2rem;
  display: flex; align-items: center; justify-content: center; margin: 0 auto 16px;
}
.step h3 { font-size: .95rem; font-weight: 700; margin-bottom: 8px; color: var(--gray-900); }
.step p  { font-size: .85rem; color: var(--gray-500); }

.ns-showcase { padding: 80px 0; text-align: center; }
.ns-demo {
  display: inline-flex; gap: 12px; margin: 28px auto; flex-wrap: wrap; justify-content: center;
}
.ns-chip {
  font-family: 'DM Mono', monospace; font-size: .9rem;
  background: var(--gray-900); color: #4ade80;
  padding: 10px 20px; border-radius: 8px; letter-spacing: .05em;
}

.cta-band {
  padding: 80px 0;
  background: linear-gradient(135deg, #1d4ed8, #2563eb);
  text-align: center;
}
.cta-band h2 { font-size: clamp(1.5rem, 3vw, 2rem); font-weight: 800; color: #fff; margin-bottom: 12px; }
.cta-band p  { color: rgba(255,255,255,.75); margin-bottom: 28px; }
.cta-band .btn-primary { background: #fff; color: var(--blue); }
.cta-band .btn-primary:hover { background: var(--blue-light); }

footer { background: var(--gray-900); color: var(--gray-400); padding: 48px 0 28px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-brand { color: #fff; font-size: 1.1rem; font-weight: 700; display: flex; align-items: center; gap: 8px; margin-bottom: 12px; }
footer p { font-size: .85rem; line-height: 1.7; }
.footer-col h4 { color: #fff; font-size: .85rem; font-weight: 700; margin-bottom: 14px; letter-spacing: .04em; text-transform: uppercase; }
.footer-col a { display: block; color: var(--gray-400); font-size: .875rem; margin-bottom: 8px; text-decoration: none; transition: color var(--transition); }
.footer-col a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding-top: 24px; display: flex; justify-content: space-between; align-items: center; font-size: .8rem; flex-wrap: wrap; gap: 12px; }

/* ── Admin sidebar ──────────────────────────────────────────── */
.admin-sidebar-tag { background: rgba(220,38,38,.2); color: #fca5a5; font-size: .7rem; font-weight: 700; padding: 2px 6px; border-radius: 4px; margin-left: auto; }

/* ── Search bar ─────────────────────────────────────────────── */
.search-bar { position: relative; }
.search-bar input { padding-left: 36px; }
.search-bar .search-icon { position: absolute; left: 11px; top: 50%; transform: translateY(-50%); color: var(--gray-400); pointer-events: none; }

/* ── Animations ─────────────────────────────────────────────── */
@keyframes fadeInUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: none; } }
.fade-in    { animation: fadeInUp .5s ease both; }
.delay-1    { animation-delay: .1s; }
.delay-2    { animation-delay: .2s; }
.delay-3    { animation-delay: .3s; }
.delay-4    { animation-delay: .4s; }

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 900px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .sidebar-close { display: block; }
  .panel-main { margin-left: 0; }
  .menu-toggle { display: flex; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .dns-form-row { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .container { padding: 0 16px; }
  .navbar-links { display: none; }
  .form-row { grid-template-columns: 1fr; }
  .hero { padding: 70px 0 50px; }
  .panel-content { padding: 16px; }
  .auth-body { padding: 0 20px 24px; }
  .auth-header { padding: 24px 20px 18px; }
  .footer-grid { grid-template-columns: 1fr; }
  .card-header, .card-body { padding: 16px; }
  .domain-grid { grid-template-columns: 1fr; }
  .stat-grid { grid-template-columns: 1fr 1fr; }
  .dns-form-row { grid-template-columns: 1fr; }
}

/* ── Utilities ──────────────────────────────────────────────── */
.text-center { text-align: center; }
.text-muted  { color: var(--gray-500); }
.text-sm     { font-size: .85rem; }
.mt-1 { margin-top: 8px; }  .mt-2 { margin-top: 16px; } .mt-3 { margin-top: 24px; } .mt-4 { margin-top: 32px; }
.mb-1 { margin-bottom: 8px; } .mb-2 { margin-bottom: 16px; } .mb-3 { margin-bottom: 24px; }
.gap-2 { gap: 16px; }
.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.w-full { width: 100%; }
.d-none { display: none; }
.link { color: var(--blue); font-weight: 600; text-decoration: none; }
.link:hover { text-decoration: underline; }