/* ========================================
   Owen Cardiac Center — Stylesheet
   ======================================== */

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

:root {
  --midnight: #0A2342;
  --midnight-light: #1A3A5C;
  --midnight-dark: #061829;
  --mint: #4DB6AC;
  --mint-light: #80CBC4;
  --mint-dark: #26A69A;
  --mint-pale: #E0F2F1;
  --neutral-50: #F8FAFC;
  --neutral-100: #F1F5F9;
  --neutral-200: #E2E8F0;
  --neutral-300: #CBD5E1;
  --neutral-400: #94A3B8;
  --neutral-500: #64748B;
  --neutral-600: #475569;
  --neutral-700: #334155;
  --neutral-800: #1E293B;
  --neutral-900: #0F172A;
  --white: #FFFFFF;
  --font-heading: 'Playfair Display', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --shadow-sm: 0 1px 3px rgba(10, 35, 66, 0.08);
  --shadow-md: 0 4px 16px rgba(10, 35, 66, 0.10);
  --shadow-lg: 0 8px 32px rgba(10, 35, 66, 0.12);
  --shadow-xl: 0 16px 48px rgba(10, 35, 66, 0.14);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  color: var(--neutral-700);
  background-color: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--mint-dark);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--midnight);
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.skip-link {
  position: absolute;
  top: -100%;
  left: 16px;
  background: var(--midnight);
  color: var(--white);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  z-index: 1000;
  font-size: 0.875rem;
  font-weight: 500;
}

.skip-link:focus {
  top: 16px;
  color: var(--white);
}

/* ---------- Typography ---------- */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  color: var(--midnight);
  line-height: 1.2;
  font-weight: 700;
}

.text-mint {
  color: var(--mint);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--mint);
  color: var(--white);
  border-color: var(--mint);
}

.btn-primary:hover {
  background: var(--mint-dark);
  border-color: var(--mint-dark);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background: transparent;
  color: var(--midnight);
  border-color: var(--midnight);
}

.btn-outline:hover {
  background: var(--midnight);
  color: var(--white);
  transform: translateY(-2px);
}

.btn-outline-light {
  background: transparent;
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.5);
}

.btn-outline-light:hover {
  background: var(--white);
  color: var(--midnight);
  border-color: var(--white);
  transform: translateY(-2px);
}

.btn-full {
  width: 100%;
}

.btn-lg {
  padding: 16px 36px;
  font-size: 1rem;
}

/* ---------- Header ---------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--neutral-200);
  transition: box-shadow var(--transition);
}

.header.scrolled {
  box-shadow: var(--shadow-md);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--midnight);
}

.logo-text {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.logo-light .logo-text {
  color: var(--white);
}

.logo-light .logo-icon {
  filter: brightness(0) invert(1);
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
}

.nav-link {
  color: var(--neutral-600);
  font-size: 0.9375rem;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}

.nav-link:hover {
  color: var(--midnight);
  background: var(--neutral-100);
}

.nav-cta {
  background: var(--midnight);
  color: var(--white) !important;
  padding: 10px 22px;
  border-radius: var(--radius-sm);
  margin-left: 8px;
}

.nav-cta:hover {
  background: var(--midnight-light);
  color: var(--white) !important;
  transform: translateY(-1px);
}

/* Mobile Nav Toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 110;
}

.nav-toggle-line {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--midnight);
  border-radius: 2px;
  transition: all var(--transition);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--midnight);
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(10, 35, 66, 0.92) 0%,
    rgba(10, 35, 66, 0.80) 50%,
    rgba(10, 35, 66, 0.65) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 1;
  padding: 120px 24px 80px;
  max-width: 800px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(77, 182, 172, 0.15);
  border: 1px solid rgba(77, 182, 172, 0.3);
  color: var(--mint-light);
  padding: 8px 18px;
  border-radius: 50px;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 28px;
}

.badge-dot {
  width: 8px;
  height: 8px;
  background: var(--mint);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.3); }
}

.hero-headline {
  font-size: clamp(2.25rem, 5vw, 4rem);
  color: var(--white);
  line-height: 1.1;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

.hero-subheadline {
  font-size: clamp(1rem, 1.5vw, 1.25rem);
  color: rgba(255, 255, 255, 0.75);
  line-height: 1.7;
  margin-bottom: 40px;
  max-width: 600px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 64px;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  color: var(--mint);
  line-height: 1;
}

.stat-label {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.6);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 500;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: rgba(255, 255, 255, 0.2);
}

.scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255, 255, 255, 0.5);
  animation: scrollBounce 2s ease-in-out infinite;
  z-index: 1;
}

@keyframes scrollBounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* ---------- Section Shared ---------- */
.section-header {
  margin-bottom: 56px;
}

.section-header-center {
  text-align: center;
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
}

.section-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--mint-dark);
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(1.75rem, 3vw, 2.75rem);
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.section-subtitle {
  font-size: 1.0625rem;
  color: var(--neutral-500);
  line-height: 1.7;
}

/* ---------- Services ---------- */
.services {
  padding: 100px 0;
  background: var(--neutral-50);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  border: 1px solid var(--neutral-200);
  transition: all var(--transition);
}

.service-card:hover {
  border-color: var(--mint);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.service-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--mint-pale);
  border-radius: var(--radius-md);
  margin-bottom: 20px;
}

.service-title {
  font-size: 1.25rem;
  margin-bottom: 12px;
  font-family: var(--font-body);
  font-weight: 600;
}

.service-description {
  font-size: 0.9375rem;
  color: var(--neutral-500);
  line-height: 1.7;
}

/* ---------- About ---------- */
.about {
  padding: 100px 0;
  background: var(--white);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.about-image-wrapper {
  position: relative;
}

.about-image {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.about-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 6/7;
}

.about-accent {
  position: absolute;
  bottom: -20px;
  right: -20px;
  width: 200px;
  height: 200px;
  background: var(--mint-pale);
  border-radius: var(--radius-xl);
  z-index: -1;
}

.about-text {
  font-size: 1.0625rem;
  color: var(--neutral-600);
  line-height: 1.8;
  margin-bottom: 20px;
}

.about-values {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 32px;
}

.value-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.value-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--mint-pale);
  border-radius: var(--radius-sm);
}

.value-item strong {
  display: block;
  color: var(--midnight);
  font-size: 0.9375rem;
  margin-bottom: 2px;
}

.value-desc {
  font-size: 0.875rem;
  color: var(--neutral-500);
  line-height: 1.5;
}

/* ---------- Patient Info ---------- */
.patient-info {
  padding: 100px 0;
  background: var(--neutral-50);
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 64px;
}

.info-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  border: 1px solid var(--neutral-200);
  transition: all var(--transition);
}

.info-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--neutral-300);
}

.info-card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

.info-card-number {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--mint);
  line-height: 1;
}

.info-card-title {
  font-size: 1.125rem;
  font-family: var(--font-body);
  font-weight: 600;
  color: var(--midnight);
}

.info-card-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.info-card-list li {
  position: relative;
  padding-left: 20px;
  font-size: 0.9375rem;
  color: var(--neutral-600);
  line-height: 1.6;
}

.info-card-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  background: var(--mint);
  border-radius: 50%;
}

.patient-cta {
  background: var(--midnight);
  border-radius: var(--radius-xl);
  padding: 56px 48px;
}

.patient-cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}

.patient-cta-title {
  color: var(--white);
  font-size: 1.75rem;
  margin-bottom: 8px;
}

.patient-cta-desc {
  color: rgba(255, 255, 255, 0.7);
  font-size: 1rem;
  max-width: 480px;
  line-height: 1.7;
}

/* ---------- Insurance ---------- */
.insurance {
  padding: 100px 0;
  background: var(--white);
}

.insurance-logos {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 32px;
}

.insurance-item {
  display: flex;
  justify-content: center;
}

.insurance-placeholder {
  width: 100%;
  aspect-ratio: 2.2/1;
  background: var(--neutral-100);
  border: 1px solid var(--neutral-200);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--neutral-500);
  letter-spacing: 0.02em;
  transition: all var(--transition);
}

.insurance-placeholder:hover {
  border-color: var(--mint);
  background: var(--mint-pale);
  color: var(--mint-dark);
}

.insurance-note {
  text-align: center;
  font-size: 0.9375rem;
  color: var(--neutral-500);
}

.insurance-note a {
  color: var(--mint-dark);
  font-weight: 600;
}

.insurance-note a:hover {
  color: var(--midnight);
}

/* ---------- Contact ---------- */
.contact {
  padding: 100px 0;
  background: var(--neutral-50);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.contact-desc {
  font-size: 1.0625rem;
  color: var(--neutral-500);
  line-height: 1.7;
  margin-bottom: 40px;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.contact-detail {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.contact-detail-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--mint-pale);
  border-radius: var(--radius-sm);
}

.contact-detail strong {
  display: block;
  color: var(--midnight);
  font-size: 0.9375rem;
  margin-bottom: 4px;
}

.contact-detail p {
  font-size: 0.9375rem;
  color: var(--neutral-600);
  line-height: 1.6;
}

.contact-detail a {
  color: var(--mint-dark);
}

.contact-detail a:hover {
  color: var(--midnight);
}

/* Form */
.contact-form-wrapper {
  background: var(--white);
  border-radius: var(--radius-xl);
  padding: 40px;
  border: 1px solid var(--neutral-200);
  box-shadow: var(--shadow-md);
}

.form-title {
  font-size: 1.5rem;
  margin-bottom: 28px;
  font-family: var(--font-body);
  font-weight: 600;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  margin-bottom: 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--neutral-700);
}

.form-group input,
.form-group select,
.form-group textarea {
  padding: 12px 14px;
  border: 1.5px solid var(--neutral-200);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--neutral-800);
  background: var(--white);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  width: 100%;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--mint);
  box-shadow: 0 0 0 3px rgba(77, 182, 172, 0.15);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--neutral-400);
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

.form-privacy {
  text-align: center;
  font-size: 0.8125rem;
  color: var(--neutral-400);
  margin-top: 16px;
}

/* Success State */
.form-success {
  text-align: center;
  padding: 40px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.form-success h3 {
  font-size: 1.5rem;
  color: var(--midnight);
}

.form-success p {
  color: var(--neutral-500);
  line-height: 1.7;
  max-width: 360px;
}

.form-success .btn {
  margin-top: 8px;
}

/* ---------- Footer ---------- */
.footer {
  background: var(--midnight-dark);
  color: rgba(255, 255, 255, 0.7);
  padding: 72px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px;
  padding-bottom: 56px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-desc {
  font-size: 0.9375rem;
  line-height: 1.7;
  margin-top: 16px;
  max-width: 280px;
}

.footer-heading {
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--white);
  margin-bottom: 20px;
}

.footer-links ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9375rem;
  transition: color var(--transition);
}

.footer-links a:hover {
  color: var(--mint-light);
}

.footer-contact address {
  font-style: normal;
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.9375rem;
  line-height: 1.7;
}

.footer-phone a {
  color: var(--mint-light);
  font-weight: 600;
}

.footer-phone a:hover {
  color: var(--white);
}

.footer-bottom {
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-copyright {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.5);
}

.footer-disclaimer {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.35);
  max-width: 500px;
  text-align: right;
  line-height: 1.5;
}

/* ---------- Scroll Reveal (progressive enhancement) ---------- */
@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1), transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  }

  .reveal.revealed {
    opacity: 1;
    transform: translateY(0);
  }

  .reveal-delay-1 { transition-delay: 0.1s; }
  .reveal-delay-2 { transition-delay: 0.2s; }
  .reveal-delay-3 { transition-delay: 0.3s; }
  .reveal-delay-4 { transition-delay: 0.4s; }
  .reveal-delay-5 { transition-delay: 0.5s; }
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .about-grid {
    gap: 48px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 320px;
    height: 100vh;
    background: var(--white);
    box-shadow: var(--shadow-xl);
    padding: 100px 32px 32px;
    transition: right var(--transition);
    z-index: 100;
  }

  .nav.open {
    right: 0;
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
  }

  .nav-link {
    padding: 14px 16px;
    font-size: 1rem;
  }

  .nav-cta {
    margin-left: 0;
    margin-top: 12px;
    text-align: center;
  }

  .nav-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 99;
  }

  .nav-overlay.active {
    display: block;
  }

  .hero-content {
    padding: 120px 24px 100px;
  }

  .hero-stats {
    gap: 24px;
  }

  .stat-number {
    font-size: 1.5rem;
  }

  .services-grid,
  .info-grid,
  .insurance-logos {
    grid-template-columns: 1fr;
  }

  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .about-image-wrapper {
    order: -1;
  }

  .about-accent {
    display: none;
  }

  .patient-cta-inner {
    flex-direction: column;
    text-align: center;
  }

  .patient-cta {
    padding: 40px 28px;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .contact-form-wrapper {
    padding: 28px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .footer-disclaimer {
    text-align: center;
  }

  .scroll-indicator {
    display: none;
  }
}

@media (max-width: 480px) {
  .hero-actions {
    flex-direction: column;
  }

  .hero-actions .btn {
    width: 100%;
    justify-content: center;
  }

  .hero-stats {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .stat-divider {
    display: none;
  }
}