/* Acurasound, Inc. — Shared Site Styles */

/* === Reset & Base === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 100%; scroll-behavior: smooth; }

body {
  font-family: var(--ac-font-body);
  color: var(--ac-text);
  background: var(--ac-bg);
  line-height: 1.65;
  font-size: 1.0625rem; /* 17px — slightly larger than 16px for readability */
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--ac-navy); text-decoration: none; transition: color var(--ac-transition); }
a:hover { color: var(--ac-teal); }

.page-content a:not(.btn):not(.card-link) { text-decoration: underline; text-underline-offset: 3px; text-decoration-color: var(--ac-teal-light); }

/* Fluid typography — tightened scale for professional/medical feel */
h1, h2, h3, h4 { font-family: var(--ac-font-heading); color: var(--ac-navy); line-height: 1.25; font-weight: 400; }
h1 { font-size: clamp(1.875rem, 1.4rem + 2.4vw, 2.625rem); margin-bottom: 0.75rem; }
h2 { font-size: clamp(1.375rem, 1.1rem + 1.4vw, 1.875rem); margin-bottom: 0.75rem; }
h3 { font-size: clamp(1.125rem, 1rem + 0.6vw, 1.375rem); margin-bottom: 0.5rem; }
h4 { font-size: 1.125rem; margin-bottom: 0.375rem; }

/* Vertical rhythm — consistent spacing between text blocks */
p + p { margin-top: 0.75rem; }
h2 + p, h3 + p { margin-top: 0.5rem; }

/* === Focus Visible (Accessibility) === */
:focus-visible { outline: 2px solid var(--ac-gold); outline-offset: 2px; }
.btn:focus-visible { outline: none; box-shadow: 0 0 0 3px var(--ac-gold-light); }
.skip-link:focus-visible { outline: 2px solid var(--ac-white); }

/* === Skip Link === */
.skip-link {
  position: absolute; left: -9999px; top: auto;
  padding: 0.5rem 1rem; background: var(--ac-navy); color: var(--ac-white); z-index: 1000;
}
.skip-link:focus { left: 1rem; top: 1rem; }

/* === Container === */
.container { max-width: var(--ac-max-width); margin: 0 auto; padding: 0 1.5rem; }

/* === Header & Navigation === */
.site-header {
  background: var(--ac-header-bg);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--ac-border);
  position: sticky; top: 0; z-index: 100;
}

.nav-container {
  display: flex; align-items: center; justify-content: space-between;
  max-width: var(--ac-max-width); margin: 0 auto; padding: 0.875rem 1.5rem;
}

.site-logo { font-family: var(--ac-font-heading); font-size: 1.625rem; font-weight: 700; color: var(--ac-navy); letter-spacing: 0.02em; }
.site-logo span { display: block; font-size: 0.6875rem; font-weight: 600; color: var(--ac-text-light); font-family: var(--ac-font-body); letter-spacing: 0.06em; text-transform: uppercase; margin-top: 0.125rem; }

.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 0.5rem; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--ac-navy); margin: 5px 0; transition: transform var(--ac-transition), opacity var(--ac-transition); }

.nav-menu { display: flex; gap: 0.25rem; list-style: none; align-items: center; }
.nav-menu a {
  display: block; padding: 0.5rem 0.75rem; color: var(--ac-text);
  font-size: 0.95rem; font-weight: 500; border-radius: var(--ac-radius);
  transition: background var(--ac-transition), color var(--ac-transition);
}
.nav-menu a:hover, .nav-menu a.active { background: var(--ac-navy-bg); color: var(--ac-navy); }

/* Dropdown */
.nav-dropdown { position: relative; }
.nav-dropdown-menu {
  display: none; position: absolute; top: 100%; left: 0; min-width: 220px;
  background: var(--ac-white); border: 1px solid var(--ac-border); border-radius: var(--ac-radius);
  box-shadow: var(--ac-shadow-lg); padding: 0.5rem 0; z-index: 200;
}
@media (hover: hover) { .nav-dropdown:hover .nav-dropdown-menu { display: block; } }
.nav-dropdown.open .nav-dropdown-menu { display: block; }
.nav-dropdown-menu a { padding: 0.5rem 1rem; font-size: 0.9rem; border-radius: 0; }
.nav-dropdown-menu a:hover { background: var(--ac-navy-bg); }

/* === Hero === */
.hero {
  position: relative; padding: 5rem 1.5rem 5.5rem; text-align: center;
  color: var(--ac-white);
}
.hero::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(145deg, rgba(27, 58, 92, 0.94), rgba(42, 139, 139, 0.82));
}
.hero-content { position: relative; z-index: 1; max-width: 720px; margin: 0 auto; }
.hero h1 { color: var(--ac-white); font-size: clamp(2rem, 1.6rem + 2vw, 2.75rem); margin-bottom: 0.875rem; line-height: 1.2; }
.hero p { font-size: 1.125rem; margin-bottom: 2rem; opacity: 0.92; line-height: 1.6; }

/* === Buttons === */
.btn {
  display: inline-block; padding: 0.8rem 2rem; border-radius: var(--ac-radius);
  font-weight: 600; font-size: 0.9375rem; text-align: center; letter-spacing: 0.02em;
  transition: background var(--ac-transition), transform var(--ac-transition), box-shadow var(--ac-transition);
  cursor: pointer; border: none;
}
.btn:hover { transform: translateY(-1px); box-shadow: var(--ac-shadow); }
.btn-primary { background: var(--ac-gold); color: var(--ac-white); }
.btn-primary:hover { background: #B08825; color: var(--ac-white); }
.btn-secondary { background: var(--ac-navy); color: var(--ac-white); }
.btn-secondary:hover { background: var(--ac-navy-light); color: var(--ac-white); }
.btn-outline { background: transparent; color: var(--ac-white); border: 2px solid rgba(255,255,255,0.7); }
.btn-outline:hover { background: var(--ac-white); color: var(--ac-navy); border-color: var(--ac-white); }

/* === Sections === */
.section { padding: 4rem 0; }
.section-alt { background: var(--ac-bg-alt); }
.section-header { text-align: center; margin-bottom: 2.5rem; }
.section-header p { color: var(--ac-text-light); font-size: 1rem; margin-top: 0.5rem; max-width: 600px; margin-left: auto; margin-right: auto; }
.intro-text { font-size: 1rem; max-width: 72ch; margin-bottom: 2rem; line-height: 1.7; color: var(--ac-text-light); text-align: left; }

/* === Stats Strip === */
.stats-strip { background: var(--ac-navy); color: var(--ac-white); padding: 2.5rem 0; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; text-align: center; }
.stat-number { font-family: var(--ac-font-heading); font-size: clamp(1.75rem, 1.3rem + 2vw, 2.5rem); color: var(--ac-gold); display: block; line-height: 1.1; }
.stat-label { font-size: 0.8125rem; opacity: 0.8; margin-top: 0.375rem; text-transform: uppercase; letter-spacing: 0.05em; }

/* === Card Grid === */
.card-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 2rem; }

.card {
  background: var(--ac-white); border-radius: var(--ac-radius-lg); overflow: hidden;
  box-shadow: var(--ac-shadow); transition: box-shadow var(--ac-transition), transform var(--ac-transition);
  border-left: 4px solid var(--ac-gold);
}
.card:hover { box-shadow: var(--ac-shadow-lg); transform: translateY(-3px); }
a.card-clickable { display: block; text-decoration: none; color: inherit; cursor: pointer; }
a.card-clickable:hover { color: inherit; }
a.card-clickable:hover .card-link { color: var(--ac-teal); }
.card-body { padding: 1.5rem 1.75rem; }
.card-body h3 { margin-bottom: 0.625rem; font-family: var(--ac-font-body); font-style: normal; font-weight: 700; font-size: 1.0625rem; color: var(--ac-navy); line-height: 1.35; }
.card-body p { color: var(--ac-text); margin-bottom: 0.875rem; line-height: 1.6; font-size: 0.9375rem; opacity: 0.75; }
.card-link { font-weight: 600; font-size: 0.875rem; color: var(--ac-teal); transition: color var(--ac-transition); }
.card-link:hover { color: var(--ac-teal); }
.card-link::after { content: ' \2192'; }

/* === Page Content === */
.page-header {
  background: linear-gradient(135deg, var(--ac-navy), #142D47);
  color: var(--ac-white); padding: 2.75rem 0; text-align: center;
}
.page-header h1 { color: var(--ac-white); margin-bottom: 0.375rem; }
.page-header p { opacity: 0.85; font-size: 1rem; }

.page-content { padding: 3rem 0; }
.page-content p { margin-bottom: 0.875rem; max-width: 70ch; line-height: 1.7; }
.page-content ul, .page-content ol { margin: 0.75rem 0 1rem 1.5rem; }
.page-content li { margin-bottom: 0.375rem; line-height: 1.6; }

/* === Service Detail === */
.service-detail { display: grid; grid-template-columns: 2fr 1fr; gap: 3rem; align-items: start; }
.service-sidebar {
  background: var(--ac-bg-alt); border-radius: var(--ac-radius-lg); padding: 2rem;
  position: sticky; top: 5rem; border-top: 3px solid var(--ac-gold);
}
.service-sidebar h3 { margin-bottom: 1rem; font-size: 1.1rem; }
.service-sidebar ul { list-style: none; }
.service-sidebar li { margin-bottom: 0.5rem; }
.service-sidebar a { font-size: 0.95rem; }

/* === About Page === */
.about-intro { display: grid; grid-template-columns: 1fr 2fr; gap: 3rem; align-items: center; }
.about-photo { border-radius: var(--ac-radius-lg); box-shadow: var(--ac-shadow-lg); }
.about-photo-placeholder {
  width: 100%; aspect-ratio: 3/4; background: var(--ac-bg-alt); border-radius: var(--ac-radius-lg);
  display: flex; align-items: center; justify-content: center; color: var(--ac-text-light);
  font-size: 0.9rem; text-align: center; border: 2px dashed var(--ac-border);
}

.credential-badges { display: flex; gap: 0.75rem; flex-wrap: wrap; margin: 1.5rem 0; }
.credential-badge {
  background: var(--ac-navy-bg); color: var(--ac-navy); padding: 0.5rem 1rem;
  border-radius: 2rem; font-size: 0.875rem; font-weight: 600;
}

/* === Timeline === */
.timeline { border-left: 3px solid var(--ac-navy); padding-left: 2rem; margin: 2rem 0; }
.timeline-item { margin-bottom: 2rem; position: relative; }
.timeline-item::before {
  content: ''; position: absolute; left: -2.55rem; top: 0.5rem;
  width: 12px; height: 12px; background: var(--ac-gold); border-radius: 50%;
}
.timeline-item h4 { margin-bottom: 0.25rem; }
.timeline-item .date { color: var(--ac-text-light); font-size: 0.9rem; }

/* === Experience Page === */
.experience-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1.5rem; margin: 2rem 0; }
.experience-stat {
  text-align: center; padding: 1.5rem; background: var(--ac-white); border-radius: var(--ac-radius);
  box-shadow: var(--ac-shadow); border-top: 3px solid var(--ac-teal);
}
.experience-stat .number { font-family: var(--ac-font-heading); font-size: 2.5rem; color: var(--ac-navy); }
.experience-stat .label { color: var(--ac-text-light); font-size: 0.9rem; }

.city-grid { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 1.5rem 0; }
.city-tag {
  background: var(--ac-bg-alt); padding: 0.35rem 0.75rem; border-radius: 2rem;
  font-size: 0.85rem; color: var(--ac-text);
}

.modality-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1rem; margin: 1.5rem 0; }
.modality-card {
  background: var(--ac-white); border-radius: var(--ac-radius); padding: 1.25rem;
  box-shadow: var(--ac-shadow); border-left: 4px solid var(--ac-teal);
}
.modality-card h3 { font-size: 1.1rem; margin-bottom: 0.25rem; }
.modality-card p { font-size: 0.9rem; color: var(--ac-text-light); }

/* === Resources / FAQ === */
.resource-list { list-style: none; }
.resource-list li {
  padding: 0.75rem 1rem; background: var(--ac-white); border-radius: var(--ac-radius);
  margin-bottom: 0.5rem; box-shadow: var(--ac-shadow); font-size: 0.95rem;
}
.resource-list li strong { color: var(--ac-navy); }

.faq-item {
  background: var(--ac-white); border-radius: var(--ac-radius); margin-bottom: 0.5rem;
  box-shadow: var(--ac-shadow); overflow: hidden;
}
.faq-item summary {
  padding: 1rem 1.25rem; font-family: var(--ac-font-body); font-size: 1rem; font-weight: 600;
  color: var(--ac-text); cursor: pointer; display: flex; justify-content: space-between; align-items: center;
  list-style: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: '+'; font-size: 1.25rem; color: var(--ac-gold); transition: transform var(--ac-transition); }
.faq-item[open] summary::after { content: '\2212'; }
.faq-answer { padding: 0 1.25rem 1rem; color: var(--ac-text-light); line-height: 1.7; }

/* === Contact Form === */
.contact-form { max-width: 600px; }
.form-group { margin-bottom: 1.5rem; }
.form-group label { display: block; margin-bottom: 0.5rem; font-weight: 600; color: var(--ac-text); }
.form-group input, .form-group textarea, .form-group select {
  width: 100%; padding: 0.75rem 1rem; border: 1px solid var(--ac-border); border-radius: var(--ac-radius);
  font-family: var(--ac-font-body); font-size: 1rem; transition: border-color var(--ac-transition);
}
.form-group input:focus, .form-group textarea:focus { border-color: var(--ac-teal); outline: none; box-shadow: 0 0 0 3px var(--ac-teal-bg); }
.form-group textarea { min-height: 150px; resize: vertical; }

/* === CTA Banner === */
.cta-banner {
  background: linear-gradient(135deg, var(--ac-navy), #142D47);
  color: var(--ac-white); padding: 3rem 0; text-align: center;
}
.cta-banner h2 { color: var(--ac-white); margin-bottom: 0.625rem; font-size: 1.625rem; }
.cta-banner p { opacity: 0.8; margin-bottom: 1.25rem; font-size: 0.9375rem; }

/* === Footer === */
.site-footer { background: var(--ac-text); color: var(--ac-white); padding: 3.5rem 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 2rem; }
.footer-brand { font-family: var(--ac-font-heading); font-size: 1.5rem; font-weight: 700; margin-bottom: 0.5rem; }
.footer-tagline { color: rgba(255, 255, 255, 0.7); font-size: 0.85rem; letter-spacing: 0.02em; }
.site-footer h4 { color: var(--ac-white); font-size: 1rem; margin-bottom: 1rem; }
.site-footer a { color: rgba(255, 255, 255, 0.8); }
.site-footer a:hover { color: var(--ac-white); }
.site-footer a[href^="tel:"],
.site-footer a[href^="mailto:"] { display: inline-block; min-height: 44px; line-height: 44px; }
.footer-links { list-style: none; }
.footer-links li { margin-bottom: 0.5rem; }
.footer-credentials { margin-top: 1rem; font-size: 0.85rem; color: rgba(255,255,255,0.6); }
.footer-bottom {
  text-align: center; margin-top: 2rem; padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.15); color: rgba(255, 255, 255, 0.5); font-size: 0.85rem;
}

/* === Responsive: Tablet === */
@media (min-width: 769px) and (max-width: 1024px) {
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .about-intro { grid-template-columns: 1fr 1.5fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

/* === Responsive: Large Screen === */
@media (min-width: 1400px) {
  .container { max-width: 1320px; padding: 0 2rem; }
}

/* === Responsive: Mobile === */
@media (max-width: 768px) {
  .hero { padding: 3.5rem 1.5rem; }
  .hero h1 { font-size: 2.25rem; }
  .section { padding: 3.5rem 0; }

  .nav-toggle { display: block; }
  .nav-menu {
    display: none; flex-direction: column; position: absolute;
    top: 100%; left: 0; right: 0; background: var(--ac-white);
    border-bottom: 1px solid var(--ac-border); padding: 1rem;
    box-shadow: var(--ac-shadow-lg);
  }
  .nav-menu.open { display: flex; }
  .nav-dropdown-menu { position: static; box-shadow: none; border: none; padding-left: 1rem; display: none; }
  .nav-dropdown.open .nav-dropdown-menu { display: block; }

  .about-intro { grid-template-columns: 1fr; text-align: center; }
  .about-photo, .about-photo-placeholder { max-width: 250px; margin: 0 auto; }
  .service-detail { grid-template-columns: 1fr; }
  .service-sidebar { position: static; }
  .footer-grid { grid-template-columns: 1fr; }
  .card-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .experience-stats { grid-template-columns: repeat(2, 1fr); }
  .modality-grid { grid-template-columns: 1fr; }
}

/* === Print === */
@media print {
  .site-header, .nav-toggle, .cta-banner, .skip-link { display: none; }
  .site-footer { background: none; color: var(--ac-text); padding: 1rem 0; }
  .section { padding: 1.5rem 0; }
  .hero { padding: 2rem 0; background: none !important; color: var(--ac-text); }
  .hero::before { display: none; }
  .hero h1, .page-header h1 { color: var(--ac-navy); }
  .page-header { background: none; color: var(--ac-text); padding: 1.5rem 0; }
}

/* === Reduced Motion === */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}