/* ── Reset & Base ─────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --blue: #1a6fc4;
  --blue-dark: #1352a0;
  --blue-light: #e8f1fb;
  --teal: #0d9488;
  --teal-light: #e6f7f6;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-500: #6b7280;
  --gray-700: #374151;
  --gray-900: #111827;
  --white: #ffffff;
  --shadow: 0 1px 3px rgba(0,0,0,.08), 0 4px 16px rgba(0,0,0,.06);
  --shadow-lg: 0 8px 32px rgba(0,0,0,.12);
  --radius: 12px;
  --radius-sm: 8px;
}

body {
  font-family: 'Inter', 'Noto Sans SC', -apple-system, sans-serif;
  background: var(--gray-50);
  color: var(--gray-900);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--blue); text-decoration: none; }
a:hover { color: var(--blue-dark); }

/* ── Navbar ───────────────────────────────────── */
.navbar {
  background: var(--white);
  border-bottom: 1px solid var(--gray-200);
  position: sticky; top: 0; z-index: 100;
  box-shadow: 0 1px 4px rgba(0,0,0,.04);
}
.nav-inner {
  max-width: 1200px; margin: 0 auto;
  padding: 0 24px;
  display: flex; align-items: center; gap: 32px;
  height: 64px;
}
.logo {
  display: flex; align-items: center; gap: 8px;
  font-weight: 700; font-size: 20px;
  color: var(--gray-900) !important;
}
.logo-icon { font-size: 24px; }
.logo-text { background: linear-gradient(135deg, var(--blue), var(--teal));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.nav-links { display: flex; gap: 24px; align-items: center; margin-left: auto; }
.nav-links a { color: var(--gray-700); font-size: 14px; font-weight: 500; transition: color .2s; }
.nav-links a:hover { color: var(--blue); }
.nav-cta {
  background: var(--blue) !important; color: var(--white) !important;
  padding: 8px 18px; border-radius: 100px;
  font-size: 13px; font-weight: 600;
  transition: background .2s, transform .1s;
}
.nav-cta:hover { background: var(--blue-dark) !important; transform: translateY(-1px); }
.mobile-menu-btn { display: none; border: none; background: none; font-size: 22px; cursor: pointer; margin-left: auto; }
.mobile-menu { display: none; flex-direction: column; padding: 12px 24px 16px; border-top: 1px solid var(--gray-200); background: var(--white); }
.mobile-menu a { padding: 10px 0; color: var(--gray-700); font-size: 15px; border-bottom: 1px solid var(--gray-100); }
.mobile-menu .nav-cta { margin-top: 8px; background: var(--blue); color: white !important; border-radius: 100px; padding: 10px 20px; text-align: center; border: none; }

/* ── Hero ─────────────────────────────────────── */
.hero {
  background: linear-gradient(160deg, #e8f1fb 0%, #f0f9ff 50%, #e6f7f6 100%);
  padding: 64px 24px 80px;
  text-align: center;
}
.hero-inner { max-width: 800px; margin: 0 auto; }
.hero-badge {
  display: inline-block; background: var(--white);
  border: 1px solid var(--gray-200); border-radius: 100px;
  padding: 6px 16px; font-size: 13px; font-weight: 600;
  color: var(--teal); margin-bottom: 20px;
  box-shadow: var(--shadow);
}
.hero h1 {
  font-size: clamp(28px, 5vw, 48px);
  font-weight: 800; line-height: 1.15;
  color: var(--gray-900); margin-bottom: 16px;
}
.hero-sub { font-size: 18px; color: var(--gray-500); margin-bottom: 36px; }

/* ── Search Box ───────────────────────────────── */
.search-box {
  background: var(--white);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow-lg);
  margin-bottom: 32px;
}
.search-row {
  display: grid;
  grid-template-columns: 1fr 160px 200px auto;
  gap: 12px; align-items: center;
}
#searchInput {
  padding: 12px 16px; border: 1.5px solid var(--gray-300);
  border-radius: var(--radius-sm); font-size: 15px;
  font-family: inherit; transition: border .2s;
  outline: none;
}
#searchInput:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(26,111,196,.1); }
select {
  padding: 12px 12px; border: 1.5px solid var(--gray-300);
  border-radius: var(--radius-sm); font-size: 14px;
  font-family: inherit; background: var(--white);
  cursor: pointer; outline: none;
}
select:focus { border-color: var(--blue); }
.btn-search {
  display: flex; align-items: center; gap: 8px;
  background: var(--blue); color: var(--white);
  border: none; border-radius: var(--radius-sm);
  padding: 12px 24px; font-size: 15px; font-weight: 600;
  cursor: pointer; white-space: nowrap;
  transition: background .2s, transform .1s;
}
.btn-search:hover { background: var(--blue-dark); transform: translateY(-1px); }

/* ── Quick Stats ──────────────────────────────── */
.quick-stats {
  display: flex; align-items: center; justify-content: center; gap: 32px;
}
.stat-item { text-align: center; }
.stat-num { display: block; font-size: 28px; font-weight: 800; color: var(--blue); }
.stat-label { font-size: 13px; color: var(--gray-500); font-weight: 500; }
.stat-divider { width: 1px; height: 36px; background: var(--gray-300); }

/* ── Sections ─────────────────────────────────── */
.main-content { max-width: 1200px; margin: 0 auto; padding: 0 24px 80px; }
.section { padding: 60px 0; }
.section-header { text-align: center; margin-bottom: 40px; }
.section-header h2 { font-size: 28px; font-weight: 700; margin-bottom: 8px; }
.section-header p { color: var(--gray-500); }

/* ── States Grid ──────────────────────────────── */
.states-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 14px;
}
.state-card {
  display: flex; align-items: center; gap: 12px;
  background: var(--white); border: 1.5px solid var(--gray-200);
  border-radius: var(--radius-sm); padding: 14px 16px;
  transition: all .2s; cursor: pointer;
  color: var(--gray-900) !important;
}
.state-card:hover {
  border-color: var(--blue); box-shadow: 0 4px 16px rgba(26,111,196,.12);
  transform: translateY(-2px);
}
.state-flag { font-size: 24px; line-height: 1; }
.state-name { font-weight: 600; font-size: 14px; }
.state-count { font-size: 12px; color: var(--gray-500); }

/* ── Specialties Grid ──────────────────────────── */
.specialties-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
}
.specialty-card {
  display: flex; align-items: center; gap: 14px;
  background: var(--white); border: 1.5px solid var(--gray-200);
  border-radius: var(--radius); padding: 20px;
  transition: all .2s; cursor: pointer;
  color: var(--gray-900) !important;
}
.specialty-card:hover {
  border-color: var(--teal); box-shadow: 0 4px 16px rgba(13,148,136,.1);
  transform: translateY(-2px);
}
.spec-icon { font-size: 32px; }
.spec-name { font-weight: 600; font-size: 15px; margin-bottom: 4px; }
.spec-count { font-size: 13px; color: var(--gray-500); }

/* ── Results ──────────────────────────────────── */
.results-header {
  display: flex; align-items: flex-start; justify-content: space-between;
  margin-bottom: 20px;
}
.results-header h2 { font-size: 24px; font-weight: 700; }
.results-sub { color: var(--gray-500); margin-top: 4px; }
.btn-secondary {
  background: var(--gray-100); color: var(--gray-700);
  border: 1px solid var(--gray-200); border-radius: 100px;
  padding: 8px 20px; font-size: 13px; font-weight: 600;
  cursor: pointer; transition: all .2s; white-space: nowrap;
}
.btn-secondary:hover { background: var(--gray-200); }

.active-filters {
  display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px;
}
.filter-tag {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--blue-light); color: var(--blue);
  border: 1px solid rgba(26,111,196,.2);
  border-radius: 100px; padding: 4px 12px; font-size: 13px;
}
.filter-tag button {
  background: none; border: none; cursor: pointer;
  color: var(--blue); font-size: 14px; line-height: 1; padding: 0;
}

.doctors-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 16px;
}

/* ── Doctor Card ──────────────────────────────── */
.doctor-card {
  background: var(--white);
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all .2s;
}
.doctor-card:hover {
  border-color: var(--blue);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}
.doctor-card-header {
  display: flex; align-items: center; gap: 14px;
  padding: 18px 18px 14px;
  border-bottom: 1px solid var(--gray-100);
}
.doctor-avatar {
  width: 52px; height: 52px; border-radius: 50%;
  background: var(--blue-light); display: flex;
  align-items: center; justify-content: center;
  font-size: 26px; flex-shrink: 0;
}
.doctor-name { font-size: 16px; font-weight: 700; margin-bottom: 2px; }
.doctor-credential { font-size: 12px; color: var(--gray-500); margin-bottom: 6px; }
.doctor-specialty {
  display: inline-block;
  background: var(--teal-light); color: var(--teal);
  border-radius: 100px; padding: 2px 10px; font-size: 11px; font-weight: 600;
}
.doctor-card-body { padding: 14px 18px; }
.doctor-detail {
  display: flex; align-items: center; gap: 8px;
  font-size: 13px; color: var(--gray-700);
  margin-bottom: 8px;
}
.detail-icon { font-size: 14px; flex-shrink: 0; }
.doctor-card-footer { padding: 12px 18px; border-top: 1px solid var(--gray-100); }
.btn-npi {
  font-size: 13px; font-weight: 600; color: var(--blue) !important;
}
.btn-npi:hover { color: var(--blue-dark) !important; text-decoration: underline; }

/* ── Pagination ──────────────────────────────── */
.pagination {
  display: flex; justify-content: center; align-items: center;
  gap: 6px; margin-top: 40px; flex-wrap: wrap;
}
.page-btn {
  min-width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  border: 1.5px solid var(--gray-200); border-radius: var(--radius-sm);
  background: var(--white); font-size: 14px; font-weight: 500;
  cursor: pointer; transition: all .15s; padding: 0 8px;
}
.page-btn:hover { border-color: var(--blue); color: var(--blue); }
.page-btn.active { background: var(--blue); color: var(--white); border-color: var(--blue); }
.page-btn:disabled { opacity: .4; cursor: not-allowed; }

/* ── Modal ───────────────────────────────────── */
.modal {
  display: none; position: fixed; inset: 0; z-index: 200;
  background: rgba(0,0,0,.5); backdrop-filter: blur(4px);
  align-items: center; justify-content: center; padding: 24px;
}
.modal.show { display: flex; }
.modal-inner {
  background: var(--white); border-radius: var(--radius-lg);
  padding: 40px; max-width: 480px; width: 100%;
  position: relative; box-shadow: var(--shadow-lg);
}
.modal-close {
  position: absolute; top: 16px; right: 16px;
  background: var(--gray-100); border: none;
  border-radius: 50%; width: 32px; height: 32px;
  cursor: pointer; font-size: 16px; display: flex;
  align-items: center; justify-content: center;
}
.modal-inner h2 { font-size: 24px; font-weight: 700; margin-bottom: 8px; }
.modal-inner > p { color: var(--gray-500); margin-bottom: 24px; }
.consult-methods { display: flex; flex-direction: column; gap: 16px; margin-bottom: 20px; }
.consult-item {
  display: flex; align-items: center; gap: 14px;
  background: var(--gray-50); border-radius: var(--radius-sm);
  padding: 16px; border: 1px solid var(--gray-200);
}
.consult-icon { font-size: 28px; }
.consult-item strong { font-size: 15px; }
.consult-item p { font-size: 13px; color: var(--gray-500); margin-top: 2px; }
.consult-note { font-size: 12px; color: var(--gray-500); text-align: center; }

/* ── Footer ───────────────────────────────────── */
.footer {
  background: var(--gray-900); color: var(--gray-300);
  padding: 60px 24px 30px; margin-top: 0;
}
.footer-inner {
  max-width: 1200px; margin: 0 auto;
  display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 48px;
  margin-bottom: 40px;
}
.footer-brand { }
.footer-brand .logo-icon { font-size: 28px; }
.footer-brand p { margin-top: 8px; font-size: 14px; line-height: 1.7; }
.footer-links h4 { font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: .05em; margin-bottom: 14px; color: var(--gray-500); }
.footer-links a, .footer-links p { display: block; font-size: 14px; color: var(--gray-400); margin-bottom: 8px; }
.footer-links a:hover { color: var(--white); }
.footer-bottom {
  max-width: 1200px; margin: 0 auto;
  border-top: 1px solid rgba(255,255,255,.08);
  padding-top: 24px; font-size: 13px; color: var(--gray-500);
  text-align: center;
}
.footer-bottom a { color: var(--gray-500); }
.footer-bottom a:hover { color: var(--white); }

/* ── Loading ─────────────────────────────────── */
.loading { text-align: center; padding: 60px; color: var(--gray-500); font-size: 15px; }
.loading::after { content: '...'; animation: dots 1.5s infinite; }
@keyframes dots { 0%,20%{content:'.'} 40%{content:'..'} 60%,100%{content:'...'} }

/* ── Responsive ───────────────────────────────── */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .mobile-menu-btn { display: block; }
  .hero { padding: 40px 16px 60px; }
  .search-row { grid-template-columns: 1fr; }
  .search-row select { grid-column: 1; }
  .btn-search { grid-column: 1; justify-content: center; }
  .quick-stats { gap: 20px; }
  .stat-num { font-size: 22px; }
  .states-grid { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 10px; }
  .doctors-list { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; gap: 28px; }
  .results-header { flex-direction: column; gap: 12px; }
}

@media (max-width: 480px) {
  .nav-inner { gap: 12px; }
  .logo-text { display: none; }
}