:root {
  --bg: #f5f7fb;
  --surface: #ffffff;
  --surface-alt: #eef3ff;
  --text: #14213d;
  --muted: #657089;
  --border: #dfe5ef;
  --primary: #315efb;
  --primary-hover: #244bd8;
  --accent: #7c4dff;
  --success: #10a56a;
  --warning-bg: #fff8e6;
  --warning-border: #f4d785;
  --warning-text: #5e4805;
  --shadow: 0 22px 60px rgba(41, 55, 90, 0.13);
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 12px;
}

html[data-theme="dark"] {
  --bg: #0c111d;
  --surface: #151c2c;
  --surface-alt: #1b2539;
  --text: #f6f8ff;
  --muted: #aeb8cc;
  --border: #2a354b;
  --primary: #7592ff;
  --primary-hover: #91a8ff;
  --accent: #a886ff;
  --success: #42d79a;
  --warning-bg: #2a2415;
  --warning-border: #625225;
  --warning-text: #ffe6a3;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.32);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 15% 5%, rgba(49, 94, 251, 0.11), transparent 30%),
    radial-gradient(circle at 90% 10%, rgba(124, 77, 255, 0.10), transparent 28%),
    var(--bg);
  line-height: 1.6;
  transition: background-color .25s ease, color .25s ease;
}

button, input { font: inherit; }
a { color: inherit; }
.container { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: color-mix(in srgb, var(--bg) 84%, transparent);
  border-bottom: 1px solid color-mix(in srgb, var(--border) 75%, transparent);
  backdrop-filter: blur(18px);
}
.nav-wrap, .footer-wrap {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 800; }
.brand-mark {
  width: 38px; height: 38px; display: grid; place-items: center;
  border-radius: 12px; color: white;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  box-shadow: 0 8px 24px rgba(49, 94, 251, .25);
}
.theme-toggle {
  display: inline-flex; align-items: center; gap: 8px;
  border: 1px solid var(--border); background: var(--surface); color: var(--text);
  padding: 9px 13px; border-radius: 999px; cursor: pointer;
}
.theme-toggle:hover { border-color: var(--primary); }

.hero { padding: 90px 0 60px; }
.hero-grid { display: grid; grid-template-columns: 1.08fr .92fr; gap: 64px; align-items: center; }
.eyebrow, .overline {
  color: var(--primary); font-size: .78rem; font-weight: 800; letter-spacing: .13em; text-transform: uppercase;
}
.hero h1 {
  max-width: 720px; margin: 14px 0 18px; font-size: clamp(2.5rem, 5vw, 4.7rem);
  line-height: 1.03; letter-spacing: -.055em;
}
.hero-copy > p { max-width: 720px; color: var(--muted); font-size: 1.08rem; }
.feature-row { margin-top: 30px; display: flex; flex-wrap: wrap; gap: 10px; }
.feature-row span {
  background: var(--surface); border: 1px solid var(--border); border-radius: 999px;
  padding: 8px 12px; color: var(--muted); font-size: .88rem; font-weight: 600;
}

.lookup-card {
  background: color-mix(in srgb, var(--surface) 94%, transparent);
  border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 30px;
  box-shadow: var(--shadow);
}
.card-heading, .section-heading { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.card-heading { margin-bottom: 24px; }
.card-heading h2, .section-heading h2 { margin: 3px 0 0; line-height: 1.2; }
.status-dot { width: 11px; height: 11px; border-radius: 50%; background: var(--success); box-shadow: 0 0 0 7px color-mix(in srgb, var(--success) 16%, transparent); }
label { display: block; margin-bottom: 8px; font-weight: 700; }
.input-row { display: grid; grid-template-columns: 1fr auto; gap: 10px; }
input {
  width: 100%; min-width: 0; border: 1px solid var(--border); border-radius: var(--radius-sm);
  background: var(--bg); color: var(--text); padding: 14px 15px; outline: none;
}
input:focus { border-color: var(--primary); box-shadow: 0 0 0 4px color-mix(in srgb, var(--primary) 16%, transparent); }
.primary-btn, .secondary-btn {
  border: 0; border-radius: var(--radius-sm); cursor: pointer; font-weight: 800;
}
.primary-btn { min-width: 126px; padding: 14px 18px; background: var(--primary); color: white; }
.primary-btn:hover { background: var(--primary-hover); }
.primary-btn:disabled { opacity: .7; cursor: wait; }
.secondary-btn { padding: 10px 14px; color: var(--text); background: var(--surface); border: 1px solid var(--border); }
.form-tools { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-top: 10px; }
.form-tools small, .form-message { color: var(--muted); }
.text-btn { border: 0; background: none; color: var(--primary); cursor: pointer; padding: 0; font-weight: 700; }
.form-message { min-height: 24px; margin: 12px 0 0; font-size: .9rem; }
.form-message.error { color: #d84949; }
.spinner { display: none; width: 16px; height: 16px; margin-left: 8px; border: 2px solid rgba(255,255,255,.45); border-top-color: white; border-radius: 50%; animation: spin .7s linear infinite; vertical-align: -3px; }
.loading .spinner { display: inline-block; }
@keyframes spin { to { transform: rotate(360deg); } }

.results-section { padding: 10px 0 70px; }
.section-heading { margin-bottom: 22px; }
.result-layout { display: grid; grid-template-columns: .82fr 1.18fr; gap: 20px; }
.summary-card, .detail-card, .info-grid article {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-md);
}
.summary-card { padding: 28px; display: flex; align-items: flex-start; gap: 18px; box-shadow: var(--shadow); }
.flag-wrap { width: 58px; height: 58px; display: grid; place-items: center; background: var(--surface-alt); border-radius: 16px; font-size: 2rem; }
.result-ip { margin: 0 0 5px; color: var(--primary); font-weight: 800; word-break: break-all; }
.summary-card h3 { margin: 0 0 5px; font-size: 1.45rem; }
.summary-card p:last-child { margin: 0; color: var(--muted); }
.details-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.detail-card { padding: 18px; }
.detail-card span { display: block; color: var(--muted); font-size: .82rem; margin-bottom: 5px; }
.detail-card strong { display: block; overflow-wrap: anywhere; }
.result-actions { margin-top: 18px; }
.map-link { color: var(--primary); font-weight: 800; text-decoration: none; }

.info-section { padding: 70px 0; border-top: 1px solid var(--border); }
.info-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.info-grid article { padding: 26px; }
.info-grid h2 { font-size: 1.15rem; margin: 16px 0 8px; }
.info-grid p { color: var(--muted); margin: 0; font-size: .94rem; }
.icon-box { width: 44px; height: 44px; display: grid; place-items: center; border-radius: 13px; background: var(--surface-alt); color: var(--primary); font-weight: 900; }

.disclosure-section { padding: 0 0 80px; }
.disclosure-card {
  display: grid; grid-template-columns: auto 1fr; gap: 18px; padding: 28px;
  background: var(--warning-bg); border: 1px solid var(--warning-border); border-radius: var(--radius-md); color: var(--warning-text);
}
.disclosure-card h2 { margin: 0 0 8px; }
.disclosure-card p { margin: 0 0 10px; }
.disclosure-card p:last-child { margin-bottom: 0; }
.disclosure-icon { width: 38px; height: 38px; border: 2px solid currentColor; border-radius: 50%; display: grid; place-items: center; font-weight: 900; }

.site-footer { border-top: 1px solid var(--border); color: var(--muted); }
.footer-wrap { min-height: 84px; }
.footer-wrap nav { display: flex; gap: 18px; }
.footer-wrap a { text-decoration: none; }
.footer-wrap a:hover { color: var(--primary); }

.privacy-dialog {
  width: min(620px, calc(100% - 32px)); border: 1px solid var(--border); border-radius: 20px;
  padding: 0; background: var(--surface); color: var(--text); box-shadow: var(--shadow);
}
.privacy-dialog::backdrop { background: rgba(3, 7, 18, .62); backdrop-filter: blur(4px); }
.dialog-header { display: flex; align-items: center; justify-content: space-between; padding: 20px 22px; border-bottom: 1px solid var(--border); }
.dialog-header h2 { margin: 0; }
.dialog-close { border: 0; background: transparent; color: var(--text); font-size: 1.8rem; cursor: pointer; }
.dialog-body { padding: 22px; color: var(--muted); }
.dialog-body p:first-child { margin-top: 0; }
.dialog-body p:last-child { margin-bottom: 0; }

@media (max-width: 900px) {
  .hero { padding-top: 58px; }
  .hero-grid, .result-layout { grid-template-columns: 1fr; gap: 34px; }
  .info-grid { grid-template-columns: 1fr; }
}
@media (max-width: 620px) {
  .container { width: min(100% - 24px, 1120px); }
  .theme-label { display: none; }
  .hero h1 { font-size: 2.55rem; }
  .lookup-card { padding: 22px; }
  .input-row { grid-template-columns: 1fr; }
  .primary-btn { width: 100%; }
  .form-tools { align-items: flex-start; flex-direction: column; }
  .details-grid { grid-template-columns: 1fr; }
  .section-heading, .footer-wrap { align-items: flex-start; flex-direction: column; }
  .footer-wrap { justify-content: center; padding: 22px 0; }
  .disclosure-card { grid-template-columns: 1fr; }
}