:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --bg: #f5f7fb;
  --card: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --border: #e5e7eb;
  --danger: #dc2626;
  --radius: 14px;
  --shadow: 0 4px 24px rgba(30, 60, 120, 0.08);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans CJK SC", "PingFang SC", "Hiragino Sans", "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

.container { max-width: 1040px; margin: 0 auto; padding: 0 20px; }

/* Header */
.header {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 50;
}
.header-inner { display: flex; align-items: center; gap: 20px; height: 64px; }
.logo { font-size: 18px; font-weight: 700; color: var(--text); text-decoration: none; display: flex; align-items: center; gap: 6px; }
.nav-links { display: flex; gap: 18px; }
.nav-links a { color: var(--muted); text-decoration: none; font-size: 14px; }
.nav-links a:hover { color: var(--primary); }
.lang-wrap { margin-left: auto; display: flex; align-items: center; gap: 6px; }
.lang-label { font-size: 16px; }
.lang-select {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 7px 10px;
  font-size: 14px;
  background: #fff;
  color: var(--text);
  cursor: pointer;
}

/* Hero */
.hero { text-align: center; padding: 48px 0 28px; }
.hero h1 { font-size: clamp(28px, 5vw, 44px); margin: 0 0 12px; letter-spacing: -0.5px; }
.subtitle { font-size: 17px; color: var(--muted); max-width: 640px; margin: 0 auto 20px; }
.badges { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.badge {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 7px 16px;
  font-size: 14px;
  box-shadow: var(--shadow);
}

/* Panels */
.panel {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px;
  margin-bottom: 24px;
}

/* Selector */
.selector-row { display: flex; gap: 16px; align-items: flex-end; flex-wrap: wrap; }
.control-group { display: flex; flex-direction: column; gap: 8px; flex: 1; min-width: 220px; }
.control-group > label { font-size: 13px; font-weight: 600; color: var(--muted); }
.country-group { position: relative; }

.cust-sel { position: relative; }
.cust-sel-trigger {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  background: #fff; border: 1px solid var(--border); border-radius: 10px;
  padding: 11px 14px; cursor: pointer; font-size: 15px; min-height: 46px;
}
.cust-sel-arrow { color: var(--muted); font-size: 12px; }
.cust-sel-drop {
  position: absolute; top: calc(100% + 6px); left: 0; right: 0;
  background: #fff; border: 1px solid var(--border); border-radius: 12px;
  box-shadow: 0 12px 32px rgba(30, 60, 120, 0.16);
  z-index: 40; display: none; overflow: hidden;
}
.cust-sel-drop.open { display: block; }
.cust-sel-search { padding: 10px; border-bottom: 1px solid var(--border); }
.cust-sel-search input {
  width: 100%; padding: 9px 12px; border: 1px solid var(--border); border-radius: 8px;
  font-size: 14px; outline: none;
}
.cust-sel-search input:focus { border-color: var(--primary); }
.cust-sel-list { max-height: 300px; overflow-y: auto; padding: 6px; }
.cust-sel-opt {
  display: flex; align-items: center; gap: 8px; padding: 9px 10px;
  border-radius: 8px; cursor: pointer; font-size: 14px;
}
.cust-sel-opt:hover { background: #eef2ff; }
.cust-sel-opt.sel { background: #dbeafe; font-weight: 600; }
.cust-sel-empty { padding: 12px; text-align: center; color: var(--muted); }

.select {
  width: 100%; padding: 11px 14px; border: 1px solid var(--border); border-radius: 10px;
  font-size: 15px; background: #fff; color: var(--text); min-height: 46px;
}

/* Buttons */
.btn {
  border: none; border-radius: 10px; padding: 11px 18px; font-size: 15px;
  cursor: pointer; font-weight: 600; transition: transform 0.05s, box-shadow 0.15s;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: 0.6; cursor: not-allowed; }
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35); }
.btn-primary:hover { background: var(--primary-dark); }
.btn-ghost { background: #fff; color: var(--text); border: 1px solid var(--border); }
.btn-ghost:hover { border-color: var(--primary); color: var(--primary); }
.danger { color: var(--danger); }
.danger:hover { border-color: var(--danger); color: var(--danger); }
.generate-btn { min-height: 46px; }

/* Result */
.result-header { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 16px; }
.result-header h3 { margin: 0; font-size: 20px; }
.result-actions { display: flex; gap: 8px; flex-wrap: wrap; }

.result-name {
  font-size: 18px; font-weight: 700; padding: 12px 14px;
  background: #f0f5ff; border-radius: 10px; margin-bottom: 14px;
}
.result-loading {
  font-size: 18px; font-weight: 600; padding: 24px 14px; text-align: center;
  background: #f0f5ff; border-radius: 10px; margin-bottom: 14px;
  color: #3b6ea5; animation: pulse 1.2s ease-in-out infinite;
}
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.5; } }
.result-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 10px; }
.field-row {
  display: flex; align-items: center; gap: 10px;
  border: 1px solid var(--border); border-radius: 10px; padding: 10px 12px; background: #fff;
}
.field-icon { font-size: 18px; }
.field-meta { flex: 1; min-width: 0; }
.field-label { display: block; font-size: 12px; color: var(--muted); }
.field-value { display: block; font-size: 15px; word-break: break-word; }
.field-copy-btn {
  background: none; border: none; cursor: pointer; font-size: 16px; opacity: 0.7;
}
.field-copy-btn:hover { opacity: 1; }
.result-full { margin-top: 14px; padding: 14px; background: #fafafa; border-radius: 10px; }
.full-addr { margin: 8px 0; white-space: pre-wrap; font-size: 15px; font-family: inherit; }
.maps-link {
  display: inline-block; color: var(--primary); text-decoration: none; font-weight: 600; font-size: 14px;
}
.maps-link:hover { text-decoration: underline; }

.empty-state { text-align: center; padding: 32px 12px; color: var(--muted); }
.empty-icon { font-size: 40px; margin-bottom: 8px; }

/* IP section */
.ip-header h2 { margin: 0 0 4px; }
.ip-sub { color: var(--muted); margin: 0 0 14px; }
.ip-row { display: flex; gap: 10px; flex-wrap: wrap; }
.ip-input {
  flex: 1; min-width: 200px; padding: 11px 14px; border: 1px solid var(--border);
  border-radius: 10px; font-size: 15px; outline: none;
}
.ip-input:focus { border-color: var(--primary); }
.ip-status { margin-top: 10px; font-size: 14px; color: var(--primary); min-height: 20px; }
.ip-note { margin-top: 6px; font-size: 13px; color: var(--muted); }

/* Saved */
.saved-header { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 14px; }
.saved-header h2 { margin: 0; }
.saved-header-actions { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.saved-count { font-size: 13px; color: var(--muted); }
.saved-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 14px; }
.saved-card { border: 1px solid var(--border); border-radius: 12px; padding: 14px; background: #fff; }
.saved-card-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; }
.saved-name { font-weight: 700; }
.saved-gender { font-size: 12px; color: var(--muted); }
.saved-card-body { font-size: 14px; }
.saved-line { display: flex; gap: 8px; padding: 3px 0; }
.saved-line span:last-child { word-break: break-word; }
.saved-card-footer { display: flex; align-items: center; justify-content: space-between; margin-top: 10px; gap: 8px; }
.saved-time { font-size: 12px; color: var(--muted); }
.saved-card-actions { display: flex; gap: 6px; }
.saved-copy-btn, .saved-del-btn {
  border: 1px solid var(--border); background: #fff; border-radius: 8px;
  padding: 5px 10px; font-size: 12px; cursor: pointer;
}
.saved-copy-btn:hover { border-color: var(--primary); color: var(--primary); }
.saved-del-btn { color: var(--danger); }
.saved-del-btn:hover { border-color: var(--danger); }

/* Features */
.features-section { padding: 20px 0 30px; }
.features-section h2, .faq-section h2 { text-align: center; font-size: 26px; margin: 0 0 22px; }
.features-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 16px; }
.feature-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow); }
.feature-icon { font-size: 30px; margin-bottom: 8px; }
.feature-card h3 { margin: 0 0 6px; font-size: 17px; }
.feature-card p { margin: 0; color: var(--muted); font-size: 14px; }

/* FAQ */
.faq-section { padding: 10px 0 40px; }
.faq-list { max-width: 760px; margin: 0 auto; display: flex; flex-direction: column; gap: 10px; }
.faq-item { background: var(--card); border: 1px solid var(--border); border-radius: 12px; overflow: hidden; }
.faq-q {
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
  padding: 15px 18px; cursor: pointer; font-weight: 600;
}
.faq-q .arrow { color: var(--muted); font-size: 12px; transition: transform 0.2s; }
.faq-q.open .arrow { transform: rotate(180deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.25s ease; }
.faq-a.open { max-height: 400px; }
.faq-a p { margin: 0; padding: 0 18px 16px; color: var(--muted); font-size: 14px; }

/* Footer */
.footer { background: var(--card); border-top: 1px solid var(--border); padding: 24px 0; margin-top: 20px; }
.footer-inner { text-align: center; color: var(--muted); font-size: 14px; }
.footer-inner p { margin: 4px 0; }
.footer-legal { font-size: 12px; }

/* Toast */
.toast {
  position: fixed; left: 50%; bottom: 28px; transform: translateX(-50%) translateY(20px);
  background: #1f2937; color: #fff; padding: 11px 20px; border-radius: 10px;
  font-size: 14px; opacity: 0; pointer-events: none; transition: opacity 0.25s, transform 0.25s; z-index: 100;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

@media (max-width: 640px) {
  .selector-row { flex-direction: column; }
  .control-group { min-width: 100%; }
  .generate-btn { width: 100%; }
  .header-inner { height: auto; padding: 12px 20px; flex-wrap: wrap; }
}

/* Legal pages */
.legal-page h1 { font-size: 28px; margin-bottom: 4px; }
.legal-page .page-updated { color: var(--muted); font-size: 13px; margin-bottom: 20px; }
.legal-page h2 { font-size: 18px; margin: 28px 0 8px; }
.legal-page p { font-size: 15px; color: #374151; margin: 10px 0; }
.legal-page ul { font-size: 15px; color: #374151; }
.legal-page ul li { margin: 5px 0; }
.legal-page a { color: var(--primary); }

/* Footer links */
.footer-links { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin: 10px 0; }
.footer-links a { color: var(--muted); text-decoration: none; font-size: 13px; }
.footer-links a:hover { color: var(--primary); }

/* Cookie banner */
.cookie-banner {
  position: fixed; bottom: 0; left: 0; right: 0;
  background: #1f2937; color: #fff;
  padding: 14px 20px; z-index: 200;
  transform: translateY(100%); transition: transform 0.3s ease;
}
.cookie-banner.show { transform: translateY(0); }
.cookie-banner-inner { max-width: 960px; margin: 0 auto; display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.cookie-banner-text { flex: 1; font-size: 13px; min-width: 240px; }
.cookie-banner-text a { color: #93c5fd; }
.cookie-accept-btn { flex-shrink: 0; }