/* ═══════════════════════════════════════════════════════════
   Expert Medical Billing Services — Global Shared Styles
   Edit once here; applies to every page that loads this file.
   ═══════════════════════════════════════════════════════════ */

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

/* ── Design Tokens ──────────────────────────────────────────── */
:root {
  --navy: #0d3e66;
  --navy-light: #154a7a;
  --navy-mid: #1a5888;
  --teal: #8dc63f;
  --teal-dark: #72a832;
  --teal-glow: rgba(141, 198, 63, 0.12);
  --teal-subtle: rgba(141, 198, 63, 0.05);
  --gold: #D4A843;
  --gold-light: #E8C46E;
  --white: #FFFFFF;
  --off-white: #F6F8FB;
  --gray-50: #FAFBFD;
  --gray-100: #EEF1F6;
  --gray-200: #D8DDE6;
  --gray-300: #C0C7D4;
  --gray-400: #8A95A8;
  --gray-600: #5A6578;
  --gray-800: #2D3546;
  --red-soft: #E8545A;
  --green-soft: #2EAD6D;
  --font-display: 'Playfair Display', Georgia, serif;
  --font-body: 'DM Sans', system-ui, sans-serif;
  --shadow-sm: 0 1px 3px rgba(13,62,102,0.06);
  --shadow-md: 0 4px 20px rgba(13,62,102,0.08);
  --shadow-lg: 0 12px 40px rgba(13,62,102,0.12);
  --shadow-xl: 0 20px 60px rgba(13,62,102,0.16);
  --radius: 10px;
  --radius-lg: 16px;
}

/* ── Base ───────────────────────────────────────────────────── */
html { scroll-behavior: smooth; }
body { font-family: var(--font-body); color: var(--gray-800); line-height: 1.6; background: var(--white); -webkit-font-smoothing: antialiased; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.container-narrow { max-width: 900px; margin: 0 auto; padding: 0 24px; }
.text-center { text-align: center; }
.mx-auto { margin-left: auto; margin-right: auto; }

/* ── Top Bar ────────────────────────────────────────────────── */
.top-bar { background: var(--navy); color: rgba(255,255,255,0.7); font-size: 0.82rem; padding: 8px 0; }
.top-bar .container { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px; }
.top-bar a { color: rgba(255,255,255,0.85); text-decoration: none; transition: color 0.2s; }
.top-bar a:hover { color: var(--teal); }
.top-bar .location { display: flex; align-items: center; gap: 6px; }
.top-bar .contacts { display: flex; gap: 20px; align-items: center; }

/* ── Navigation ─────────────────────────────────────────────── */
.nav { background: var(--white); border-bottom: 1px solid var(--gray-100); position: sticky; top: 0; z-index: 100; box-shadow: 0 1px 0 rgba(13,62,102,0.06), 0 2px 12px rgba(13,62,102,0.04); }
.nav .container { display: flex; align-items: center; height: 76px; }

/* Logo — fixed left, min-width ensures nav is truly centered */
.nav-logo { font-family: var(--font-display); font-size: 1.2rem; font-weight: 700; color: var(--navy); text-decoration: none; display: flex; align-items: center; gap: 10px; flex-shrink: 0; min-width: 220px; }
.nav-logo .logo-icon { width: 36px; height: 36px; background: var(--teal); border-radius: 8px; display: flex; align-items: center; justify-content: center; color: white; font-weight: 800; font-size: 0.85rem; font-family: var(--font-display); letter-spacing: -0.02em; flex-shrink: 0; }

/* Nav links — truly centered */
.nav-links { flex: 1; display: flex; justify-content: center; align-items: center; gap: 2px; list-style: none; }
.nav-links a { color: var(--gray-600); text-decoration: none; font-size: 0.875rem; font-weight: 500; padding: 7px 13px; border-radius: 7px; transition: color 0.18s, background 0.18s; white-space: nowrap; }
.nav-links a:hover { color: var(--navy); background: rgba(13,62,102,0.05); }
.nav-links a.active { color: var(--teal); font-weight: 600; background: var(--teal-glow); }
.nav-book-mobile { display: none; }

/* CTA button + mobile toggle — fixed right, mirrors logo min-width */
.nav-right { display: flex; align-items: center; gap: 10px; flex-shrink: 0; min-width: 220px; justify-content: flex-end; }
.nav-book-btn { background: var(--teal); color: var(--white) !important; padding: 10px 18px; border-radius: 8px; font-weight: 700; font-size: 0.83rem; text-decoration: none; white-space: nowrap; transition: background 0.2s, transform 0.15s, box-shadow 0.2s; display: inline-flex; align-items: center; gap: 6px; letter-spacing: 0.01em; line-height: 1.3; }
.nav-book-btn:hover { background: var(--teal-dark) !important; transform: translateY(-1px); box-shadow: 0 6px 18px rgba(141,198,63,0.3); }
.mobile-toggle { display: none; background: none; border: none; cursor: pointer; padding: 7px; border-radius: 7px; transition: background 0.2s; }
.mobile-toggle:hover { background: rgba(13,62,102,0.06); }
.mobile-toggle span { display: block; width: 20px; height: 1.5px; background: var(--navy); margin: 5px 0; border-radius: 2px; transition: transform 0.25s, opacity 0.2s, width 0.25s; }
.mobile-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.mobile-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; width: 0; }
.mobile-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ── Nav Dropdown ───────────────────────────────────────────── */
.nav-has-dropdown { position: relative; }
.nav-dropdown-trigger { background: none; border: none; cursor: pointer; color: var(--gray-600); font-size: 0.875rem; font-weight: 500; padding: 7px 13px; border-radius: 7px; display: inline-flex; align-items: center; gap: 5px; transition: color 0.18s, background 0.18s; white-space: nowrap; font-family: var(--font-body); line-height: inherit; }
.nav-dropdown-trigger:hover { color: var(--navy); background: rgba(13,62,102,0.05); }
.nav-dropdown-trigger.active { color: var(--teal); font-weight: 600; background: var(--teal-glow); }
.nav-chevron { transition: transform 0.22s ease; flex-shrink: 0; display: inline-block; }
.nav-has-dropdown:hover .nav-chevron,
.nav-dropdown-trigger[aria-expanded="true"] .nav-chevron { transform: rotate(180deg); }
.nav-dropdown { position: absolute; top: calc(100% + 10px); left: 50%; transform: translateX(-50%) translateY(-6px); width: 560px; background: var(--white); border-radius: var(--radius-lg); box-shadow: var(--shadow-xl); border: 1px solid var(--gray-100); opacity: 0; pointer-events: none; transition: opacity 0.18s ease, transform 0.18s ease; z-index: 200; }
.nav-has-dropdown:hover .nav-dropdown,
.nav-dropdown.open { opacity: 1; pointer-events: auto; transform: translateX(-50%) translateY(0); }
.nav-dropdown-inner { padding: 20px 20px 16px; }
.nav-dropdown-label { font-size: 0.68rem; font-weight: 800; text-transform: uppercase; letter-spacing: 0.1em; color: var(--gray-400); margin-bottom: 8px; }
.nav-dropdown-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2px; }
.nav-dropdown-item { display: flex; align-items: center; gap: 9px; padding: 9px 10px; border-radius: 7px; text-decoration: none; color: var(--gray-700); font-size: 0.84rem; font-weight: 500; transition: background 0.15s, color 0.15s; }
.nav-dropdown-item:hover,
.nav-dropdown-item.active { background: var(--teal-glow); color: var(--teal-dark); }
.ddi-icon { width: 28px; height: 28px; border-radius: 6px; background: var(--off-white); color: var(--gray-500); display: flex; align-items: center; justify-content: center; flex-shrink: 0; transition: background 0.15s, color 0.15s; }
.nav-dropdown-item:hover .ddi-icon,
.nav-dropdown-item.active .ddi-icon { background: rgba(141,198,63,0.12); color: var(--teal); }
.nav-dropdown-footer { border-top: 1px solid var(--gray-100); margin-top: 14px; padding-top: 12px; }
.nav-dropdown-footer a { display: inline-flex; align-items: center; gap: 6px; font-size: 0.82rem; font-weight: 700; color: var(--teal); text-decoration: none; transition: color 0.15s; }
.nav-dropdown-footer a:hover { color: var(--teal-dark); }

/* ── Page Hero (inner pages) ────────────────────────────────── */
.page-hero { background: linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 60%, #1d5485 100%); padding: 64px 0 72px; position: relative; overflow: hidden; }
.page-hero::before { content: ''; position: absolute; top: -50%; right: -20%; width: 700px; height: 700px; background: radial-gradient(circle, rgba(141,198,63,0.08) 0%, transparent 70%); border-radius: 50%; }
.page-hero::after  { content: ''; position: absolute; bottom: -40%; left: -10%; width: 500px; height: 500px; background: radial-gradient(circle, rgba(212,168,67,0.05) 0%, transparent 70%); border-radius: 50%; }
.page-hero h1 { font-family: var(--font-display); font-size: 2.8rem; font-weight: 700; color: var(--white); line-height: 1.2; margin-bottom: 18px; position: relative; z-index: 1; }
.page-hero h1 em { color: var(--teal); font-style: normal; }
.page-hero p { font-size: 1.1rem; color: rgba(255,255,255,0.7); line-height: 1.75; max-width: 700px; position: relative; z-index: 1; }

/* ── Breadcrumb ─────────────────────────────────────────────── */
.breadcrumb { font-size: 0.82rem; color: rgba(255,255,255,0.45); margin-bottom: 20px; position: relative; z-index: 1; }
.breadcrumb a { color: rgba(255,255,255,0.6); text-decoration: none; transition: color 0.2s; }
.breadcrumb a:hover { color: var(--teal); }
.breadcrumb span { margin: 0 8px; }

/* ── Stats Bar ──────────────────────────────────────────────── */
.stats-bar { background: var(--white); margin-top: -44px; position: relative; z-index: 2; }
.stats-bar-inner { max-width: 1000px; margin: 0 auto; padding: 0 24px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; background: var(--white); border-radius: var(--radius-lg); box-shadow: var(--shadow-xl); overflow: hidden; }
.stat-box { padding: 28px 24px; text-align: center; border-right: 1px solid var(--gray-100); }
.stat-box:last-child { border-right: none; }
.stat-box .stat-num { font-family: var(--font-display); font-size: 2rem; font-weight: 700; color: var(--teal); }
.stat-box .stat-label { font-size: 0.8rem; color: var(--gray-400); margin-top: 2px; letter-spacing: 0.02em; }

/* ── Section Defaults ───────────────────────────────────────── */
section { padding: 80px 0; }
.section-label { display: inline-block; font-size: 0.76rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--teal); margin-bottom: 10px; }
.section-title { font-family: var(--font-display); font-size: 2.1rem; font-weight: 600; color: var(--navy); line-height: 1.25; margin-bottom: 14px; }
.section-desc { font-size: 1rem; color: var(--gray-600); max-width: 650px; line-height: 1.75; }

/* ── FAQ Accordion ──────────────────────────────────────────── */
.faq-list { max-width: 780px; margin: 44px auto 0; }
.faq-item { border-bottom: 1px solid var(--gray-100); }
.faq-question { width: 100%; background: none; border: none; padding: 18px 40px 18px 0; font-size: 0.95rem; font-weight: 600; color: var(--navy); text-align: left; cursor: pointer; font-family: var(--font-body); position: relative; line-height: 1.4; }
.faq-question::after { content: '+'; position: absolute; right: 0; top: 50%; transform: translateY(-50%); font-size: 1.3rem; color: var(--teal); font-weight: 400; }
.faq-item.open .faq-question::after { content: '−'; }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.35s ease, padding 0.35s ease; }
.faq-item.open .faq-answer { max-height: 280px; padding-bottom: 18px; }
.faq-answer p { font-size: 0.9rem; color: var(--gray-600); line-height: 1.7; }

/* ── CTA Band ───────────────────────────────────────────────── */
.cta-band { background: linear-gradient(135deg, var(--teal) 0%, var(--teal-dark) 100%); padding: 56px 0; text-align: center; }
.cta-band h2 { font-family: var(--font-display); font-size: 2rem; font-weight: 600; color: var(--white); margin-bottom: 10px; }
.cta-band p { color: rgba(255,255,255,0.8); margin-bottom: 24px; font-size: 1.02rem; }
.btn-white { display: inline-block; padding: 14px 36px; background: var(--white); color: var(--teal-dark); border-radius: 8px; font-weight: 700; font-size: 0.95rem; text-decoration: none; transition: transform 0.15s, box-shadow 0.2s; }
.btn-white:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,0.15); }
.cta-phone { display: block; margin-top: 14px; color: rgba(255,255,255,0.8); font-size: 0.88rem; }
.cta-phone a { color: var(--white); font-weight: 600; text-decoration: none; }

/* ── Footer ─────────────────────────────────────────────────── */
footer { background: var(--navy); color: rgba(255,255,255,0.6); padding: 56px 0 24px; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr; gap: 36px; margin-bottom: 36px; }
.footer-brand { font-family: var(--font-display); font-size: 1.15rem; font-weight: 700; color: var(--white); margin-bottom: 10px; }
.footer-desc { font-size: 0.84rem; line-height: 1.65; max-width: 300px; }
footer h4 { color: var(--white); font-size: 0.82rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 14px; }
footer ul { list-style: none; }
footer li { margin-bottom: 9px; }
footer a { color: rgba(255,255,255,0.55); text-decoration: none; font-size: 0.86rem; transition: color 0.2s; }
footer a:hover { color: var(--teal); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding-top: 20px; display: flex; justify-content: space-between; align-items: center; font-size: 0.78rem; }
.footer-bottom a { margin-left: 18px; }

/* ── Form Alerts (shared) ───────────────────────────────────── */
.form-alert { padding: 12px 16px; border-radius: 8px; font-size: 0.9rem; margin-bottom: 16px; }
.form-alert-success { background: rgba(46,173,109,0.1); color: var(--green-soft); border: 1px solid rgba(46,173,109,0.25); }
.form-alert-error   { background: rgba(232,84,90,0.08); color: var(--red-soft); border: 1px solid rgba(232,84,90,0.2); }

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .stats-bar-inner { grid-template-columns: repeat(2, 1fr); }
  .stat-box:nth-child(2) { border-right: none; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  /* Mobile nav dropdown */
  .nav-links {
    display: none; flex-direction: column; align-items: stretch; gap: 0;
    position: absolute; top: 76px; left: 0; right: 0;
    background: var(--white);
    padding: 6px 20px 20px;
    border-bottom: 1px solid var(--gray-100);
    box-shadow: 0 8px 28px rgba(13,62,102,0.12);
    z-index: 99;
  }
  .nav-links.open { display: flex; }
  .nav-links > li { border-bottom: 1px solid var(--gray-100); }
  .nav-links > li:last-child { border-bottom: none; }
  .nav-links a { display: block; padding: 13px 4px; font-size: 0.95rem; border-radius: 0; background: none !important; }
  .nav-links a:hover { color: var(--teal); }
  .nav-book-mobile { display: list-item !important; padding-top: 10px; }
  .nav-book-mobile a { display: block; background: var(--teal) !important; color: var(--white) !important; text-align: center; padding: 13px 20px; border-radius: 8px; font-weight: 700; font-size: 0.9rem; margin-top: 4px; }
  .nav-book-mobile a:hover { background: var(--teal-dark) !important; }
  .nav-book-btn { display: none; }
  .mobile-toggle { display: block; }
  /* Mobile dropdown — accordion, not absolute */
  .nav-dropdown-trigger { width: 100%; justify-content: space-between; padding: 13px 4px; font-size: 0.95rem; border-radius: 0; color: var(--gray-600); }
  .nav-dropdown-trigger:hover { background: none !important; color: var(--teal); }
  .nav-dropdown-trigger.active { background: none !important; color: var(--teal); font-weight: 600; }
  .nav-has-dropdown { position: static; }
  .nav-dropdown { position: static !important; transform: none !important; width: 100%; box-shadow: none; border: none; border-left: 2px solid var(--gray-100); border-radius: 0; opacity: 1; pointer-events: auto; max-height: 0; overflow: hidden; transition: max-height 0.35s ease; margin-left: 8px; }
  .nav-has-dropdown:hover .nav-dropdown { opacity: 1; max-height: 0; } /* disable CSS hover on mobile */
  .nav-dropdown.open { max-height: 700px; opacity: 1; pointer-events: auto; }
  .nav-dropdown-inner { padding: 4px 0 10px; }
  .nav-dropdown-grid { grid-template-columns: 1fr; gap: 0; }
  .nav-dropdown-item { padding: 9px 8px; font-size: 0.88rem; border-radius: 6px; }
  .nav-dropdown-footer { padding-top: 8px; margin-top: 8px; }
  .nav-dropdown-footer a { font-size: 0.82rem; padding: 0 8px; }
  /* Page / sections */
  .page-hero { padding: 40px 0 56px; }
  .page-hero h1 { font-size: 2rem; }
  .stats-bar-inner { grid-template-columns: 1fr 1fr; }
  .section-title { font-size: 1.7rem; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 10px; text-align: center; }
  .top-bar .contacts { display: none; }
}

/* ── Floating Action Button ─────────────────────────────────── */
.fab-wrap { position: fixed; bottom: 28px; right: 28px; z-index: 9999; display: flex; flex-direction: column; align-items: flex-end; gap: 12px; }
.fab-main { width: 56px; height: 56px; border-radius: 50%; background: var(--teal); border: none; cursor: pointer; display: flex; align-items: center; justify-content: center; color: white; box-shadow: 0 4px 20px rgba(141,198,63,0.45); transition: background 0.2s, transform 0.2s, box-shadow 0.2s; position: relative; flex-shrink: 0; }
.fab-main:hover { background: var(--teal-dark); transform: scale(1.08); box-shadow: 0 6px 28px rgba(141,198,63,0.55); }
.fab-main svg { position: absolute; transition: opacity 0.22s ease, transform 0.22s ease; }
.fab-icon-msg   { opacity: 1; transform: scale(1) rotate(0deg); }
.fab-icon-close { opacity: 0; transform: scale(0.5) rotate(-90deg); }
.fab-wrap.open .fab-icon-msg   { opacity: 0; transform: scale(0.5) rotate(90deg); }
.fab-wrap.open .fab-icon-close { opacity: 1; transform: scale(1) rotate(0deg); }
.fab-options { display: flex; flex-direction: column; align-items: flex-end; gap: 10px; }
.fab-option { width: 46px; height: 46px; border-radius: 50%; display: flex; align-items: center; justify-content: center; color: white; text-decoration: none; box-shadow: 0 3px 14px rgba(0,0,0,0.2); position: relative; opacity: 0; transform: translateY(20px) scale(0.7); pointer-events: none; transition: opacity 0.22s ease, transform 0.22s ease, box-shadow 0.2s; }
.fab-wrap.open .fab-option { opacity: 1; transform: translateY(0) scale(1); pointer-events: auto; }
.fab-wrap.open .fab-option:nth-child(1) { transition-delay: 0.09s; }
.fab-wrap.open .fab-option:nth-child(2) { transition-delay: 0.06s; }
.fab-wrap.open .fab-option:nth-child(3) { transition-delay: 0.03s; }
.fab-wrap.open .fab-option:nth-child(4) { transition-delay: 0s; }
.fab-option:hover { transform: scale(1.12) !important; box-shadow: 0 6px 20px rgba(0,0,0,0.25); }
.fab-opt-form  { background: var(--navy); }
.fab-opt-email { background: #EA4335; }
.fab-opt-call  { background: #1976D2; }
.fab-opt-wa    { background: #25D366; }
.fab-option::before { content: attr(data-label); position: absolute; right: calc(100% + 12px); background: var(--navy); color: #fff; font-size: 0.75rem; font-weight: 600; padding: 5px 10px; border-radius: 6px; white-space: nowrap; font-family: var(--font-body); opacity: 0; transform: translateX(8px); transition: opacity 0.18s, transform 0.18s; pointer-events: none; box-shadow: 0 2px 8px rgba(0,0,0,0.15); }
.fab-option:hover::before { opacity: 1; transform: translateX(0); }

/* ── Page Hero Animation ────────────────────────────────────── */
@keyframes fadeUp { from { opacity: 0; transform: translateY(22px); } to { opacity: 1; transform: translateY(0); } }
.page-hero > .container > * { animation: fadeUp 0.6s ease-out both; }
.page-hero > .container > *:nth-child(1) { animation-delay: 0.1s; }
.page-hero > .container > *:nth-child(2) { animation-delay: 0.2s; }
.page-hero > .container > *:nth-child(3) { animation-delay: 0.3s; }
.page-hero > .container > *:nth-child(4) { animation-delay: 0.4s; }