/* ====================================================================
   Troncones Acupuncture — Global Stylesheet
   Design: Warm earth-tone, elegant, ADA-compliant (WCAG 2.1 AA)
   Approach: Mobile-first responsive
   ==================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,400;0,500;0,600;0,700;1,400;1,500&family=Lato:ital,wght@0,300;0,400;0,700;0,900;1,400&display=swap');

:root {
  --color-primary: #8B6F4E;
  --color-primary-dark: #6B4F2E;
  --color-accent: #C4956A;
  --color-accent-dark: #A07040;
  --color-sage: #7A9E7E;
  --color-sage-dark: #4A6E4E;
  --color-bg: #F5F0EB;
  --color-bg-warm: #EDE4DA;
  --color-bg-earth: #D4C4B0;
  --color-surface: #FFFFFF;
  --color-text: #2C2418;
  --color-text-muted: #6B5D4F;
  --color-text-light: #9B8B7B;
  --color-hero-overlay: rgba(44, 36, 24, 0.65);
  --color-border: #D4C4B0;
  --color-error: #B7402A;
  --color-success: #3D7A4A;
  --font-heading: 'Cormorant Garamond', 'Georgia', serif;
  --font-body: 'Lato', 'Helvetica', sans-serif;
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --max-width: 1280px;
  --header-height: 80px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  --shadow-sm: 0 1px 3px rgba(44,36,24,0.08);
  --shadow-md: 0 4px 12px rgba(44,36,24,0.1);
  --shadow-lg: 0 8px 30px rgba(44,36,24,0.12);
  --shadow-xl: 0 12px 40px rgba(44,36,24,0.15);
  --transition-fast: 150ms ease;
  --transition-base: 300ms ease;
  --transition-slow: 500ms ease;
}

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; font-size: 16px; }

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--color-primary-dark); }
ul,ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

:focus-visible { outline: 3px solid var(--color-accent); outline-offset: 3px; border-radius: var(--radius-sm); }
:focus:not(:focus-visible) { outline: none; }

.skip-link {
  position: absolute; top: -100%; left: var(--space-md);
  background: var(--color-primary); color: #fff;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm); z-index: 10000;
  font-weight: 700; text-decoration: none;
}
.skip-link:focus { top: var(--space-sm); }

h1,h2,h3,h4,h5,h6 {
  font-family: var(--font-heading); font-weight: 600;
  line-height: 1.2; color: var(--color-primary-dark); padding-bottom: 20px;
}
h1 { font-size: 2.25rem; font-weight: 700; }
h2 { font-size: 1.875rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }
p { margin-bottom: var(--space-md); }
p:last-child { margin-bottom: 0; }
strong,b { font-weight: 700; }

.container { width: 100%; max-width: var(--max-width); margin: 0 auto; padding: 0 var(--space-lg); }
.section { padding: var(--space-3xl) 0; }
.section--warm { background-color: var(--color-bg-warm); }
.section--earth { background-color: var(--color-bg-earth); }
.section--header-match { background-color: var(--color-bg); }
.section--primary { background-color: var(--color-primary); color: #fff; }
.section--primary h2,.section--primary h3,.section--primary p { color: #fff; }
.section-header { text-align: center; margin-bottom: var(--space-2xl); }
.section-header h2 { margin-bottom: var(--space-sm); }
.section-header p { color: var(--color-text-muted); font-size: 1.1rem; max-width: 600px; margin: 0 auto; }

/* Header */
.site-header {
  position: fixed; top: 0; left: 0; width: 100%;
  height: var(--header-height);
  background-color: rgba(245,240,235,0.95);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  z-index: 1000; border-bottom: 1px solid var(--color-border);
  transition: background-color var(--transition-base), box-shadow var(--transition-base);
}
.site-header.scrolled { box-shadow: var(--shadow-md); }
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 100%; max-width: var(--max-width); margin: 0 auto; padding: 0 var(--space-lg);
}
.site-logo { display: flex; align-items: center; gap: var(--space-sm); text-decoration: none; color: var(--color-text); z-index: 1001; }
.site-logo-img { height: calc(var(--header-height) - 20px); width: auto; padding: 10px 0; }
.site-logo-text { font-family: var(--font-heading); font-size: 1.4rem; font-weight: 700; letter-spacing: 0.02em; color: var(--color-primary-dark); }
.site-logo-sub { font-family: var(--font-body); font-size: 0.65rem; text-transform: uppercase; letter-spacing: 0.15em; color: var(--color-text-muted); display: block; }

.main-nav { display: none; }
.main-nav.is-open {
  display: flex; flex-direction: column; position: fixed;
  top: 0; left: 0; width: 100%; height: 100vh;
  background-color: var(--color-bg); z-index: 999;
  padding: calc(var(--header-height) + var(--space-xl)) var(--space-lg) var(--space-xl);
  overflow-y: auto;
}
.nav-list { display: flex; flex-direction: column; gap: var(--space-xs); }
.nav-link {
  display: block; padding: var(--space-sm) var(--space-md);
  color: var(--color-text); font-size: 1.1rem; font-weight: 400;
  border-radius: var(--radius-md);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}
.nav-link:hover,.nav-link:focus-visible { background-color: var(--color-bg-earth); color: var(--color-primary-dark); }
.nav-link.active { color: var(--color-primary-dark); font-weight: 700; background-color: var(--color-bg-earth); }

.nav-cta {
  display: inline-block; margin-top: var(--space-md);
  padding: var(--space-sm) var(--space-lg);
  background-color: var(--color-accent); color: #fff;
  font-weight: 700; font-size: 0.9rem; text-transform: uppercase;
  letter-spacing: 0.08em; border-radius: var(--radius-full); text-align: center;
  transition: background-color var(--transition-fast), transform var(--transition-fast);
}
.nav-cta:hover,.nav-cta:focus-visible { background-color: var(--color-accent-dark); color: #fff; transform: translateY(-1px); }

.hamburger { display: flex; flex-direction: column; justify-content: center; align-items: center; width: 44px; height: 44px; padding: 0; z-index: 1001; }
.hamburger-line { display: block; width: 24px; height: 2px; background-color: var(--color-text); border-radius: 2px; transition: transform var(--transition-base), opacity var(--transition-fast); }
.hamburger-line+.hamburger-line { margin-top: 6px; }
.hamburger[aria-expanded="true"] .hamburger-line:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.hamburger[aria-expanded="true"] .hamburger-line:nth-child(2) { opacity: 0; }
.hamburger[aria-expanded="true"] .hamburger-line:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* Hero */
.hero { position: relative; min-height: 90vh; display: flex; align-items: center; justify-content: center; text-align: center; margin-top: var(--header-height); overflow: hidden; }
.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(107,79,46,0.75) 0%, rgba(107,79,46,0.55) 50%, rgba(44,36,24,0.45) 100%); z-index: 1; }
.hero-content { position: relative; z-index: 2; padding: var(--space-2xl) var(--space-lg); max-width: 750px; }
.hero h1 { color: #fff; font-size: 2.5rem; margin-bottom: var(--space-md); font-style: italic; }
.hero p { color: rgba(255,255,255,0.9); font-size: 1.15rem; margin-bottom: var(--space-xl); }
.hero-motif { position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%); width: 500px; height: 500px; opacity: 0.08; z-index: 1; pointer-events: none; }
.hero-motif svg { width: 100%; height: 100%; }

/* Buttons */
.btn {
  display: inline-block; padding: 0.875rem 2rem;
  font-family: var(--font-body); font-size: 0.9rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.1em;
  border-radius: var(--radius-full); text-align: center; cursor: pointer;
  transition: background-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
  border: 2px solid transparent; text-decoration: none;
}
.btn-primary { background-color: var(--color-accent); color: #fff; border-color: var(--color-accent); }
.btn-primary:hover,.btn-primary:focus-visible { background-color: var(--color-accent-dark); border-color: var(--color-accent-dark); color: #fff; transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-secondary { background-color: transparent; color: var(--color-primary-dark); border-color: var(--color-primary-dark); }
.btn-secondary:hover,.btn-secondary:focus-visible { background-color: var(--color-primary-dark); color: #fff; transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-white { background-color: #fff; color: var(--color-primary); border-color: #fff; }
.btn-white:hover,.btn-white:focus-visible { background-color: var(--color-bg); color: var(--color-primary-dark); transform: translateY(-2px); }
.btn-outline-white { background-color: transparent; color: #fff; border-color: rgba(255,255,255,0.6); }
.btn-outline-white:hover,.btn-outline-white:focus-visible { background-color: #fff; color: var(--color-primary); transform: translateY(-2px); }

/* Cards */
.card { background-color: var(--color-surface); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-sm); transition: transform var(--transition-base), box-shadow var(--transition-base); }
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.card-img { width: 100%; height: 220px; object-fit: cover; }
.card-body { padding: var(--space-lg); }
.card-body h3 { margin-bottom: var(--space-sm); }
.card-body p { color: var(--color-text-muted); font-size: 0.95rem; }

.icon-card { text-align: center; padding: var(--space-xl) var(--space-lg); background-color: var(--color-surface); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); transition: transform var(--transition-base), box-shadow var(--transition-base); }
.icon-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.icon-card-icon { width: 64px; height: 64px; margin: 0 auto var(--space-md); color: var(--color-accent); }
.icon-card-icon svg { width: 100%; height: 100%; }
.icon-card h3 { font-size: 1.2rem; margin-bottom: var(--space-sm); }
.icon-card p { font-size: 0.9rem; color: var(--color-text-muted); }

/* Grids */
.grid { display: grid; gap: var(--space-lg); }
.grid-2 { grid-template-columns: 1fr; }
.grid-3 { grid-template-columns: 1fr; }
.grid-4 { grid-template-columns: 1fr 1fr; }

/* Feature Sections */
.feature { display: flex; flex-direction: column; gap: var(--space-xl); align-items: center; }
.feature-text { order: 2; }
.feature-image { order: 1; border-radius: var(--radius-xl); overflow: hidden; }
.feature-image img { width: 100%; height: 300px; object-fit: cover; }
.feature--reverse .feature-text { order: 2; }
.feature--reverse .feature-image { order: 1; }
.feature-image--circle { border-radius: 50%; width: 280px; height: 280px; flex-shrink: 0; }
.feature-image--circle img { width: 100%; height: 100%; border-radius: 50%; }

/* Testimonial */
.testimonial { background: var(--color-primary); padding: var(--space-3xl) 0; text-align: center; }
.testimonial blockquote { font-family: var(--font-heading); font-size: 1.4rem; font-style: italic; color: #fff; line-height: 1.6; max-width: 800px; margin: 0 auto var(--space-lg); padding: 0 var(--space-lg); }
.testimonial cite { display: block; color: rgba(255,255,255,0.75); font-family: var(--font-body); font-size: 0.9rem; font-style: normal; text-transform: uppercase; letter-spacing: 0.1em; }

/* Forms */
.form-group { margin-bottom: var(--space-lg); }
.form-label { display: block; font-weight: 700; font-size: 0.9rem; margin-bottom: var(--space-xs); color: var(--color-text); }
.form-input,.form-textarea,.form-select { width: 100%; padding: 0.875rem var(--space-md); font-family: var(--font-body); font-size: 1rem; color: var(--color-text); background-color: var(--color-surface); border: 2px solid var(--color-border); border-radius: var(--radius-md); transition: border-color var(--transition-fast), box-shadow var(--transition-fast); }
.form-input:focus,.form-textarea:focus,.form-select:focus { border-color: var(--color-primary); box-shadow: 0 0 0 3px rgba(139,111,78,0.15); outline: none; }
.form-textarea { min-height: 140px; resize: vertical; }
.form-input.error,.form-textarea.error { border-color: var(--color-error); }
.form-error { display: none; align-items: center; gap: var(--space-xs); margin-top: var(--space-xs); font-size: 0.85rem; color: var(--color-error); }
.form-error::before { content: "⚠"; font-size: 1rem; }
.form-error.visible { display: flex; }
.form-success { display: none; padding: var(--space-md); background-color: rgba(61,122,74,0.1); border: 2px solid var(--color-success); border-radius: var(--radius-md); color: var(--color-success); font-weight: 700; text-align: center; }
.form-success::before { content: "✓ "; }
.form-success.visible { display: block; }

/* FAQ */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--color-border); }
.faq-question { display: flex; align-items: center; justify-content: space-between; width: 100%; padding: var(--space-lg) 0; font-family: var(--font-heading); font-size: 1.25rem; font-weight: 600; color: var(--color-text); text-align: left; background: none; border: none; cursor: pointer; transition: color var(--transition-fast); }
.faq-question:hover { color: var(--color-primary); }
.faq-icon { flex-shrink: 0; width: 24px; height: 24px; margin-left: var(--space-md); transition: transform var(--transition-base); }
.faq-question[aria-expanded="true"] .faq-icon { transform: rotate(45deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height var(--transition-slow), padding var(--transition-base); }
.faq-answer.is-open { max-height: 2000px; padding-bottom: var(--space-lg); }
.faq-answer p { color: var(--color-text-muted); line-height: 1.8; }

/* Info Table */
.info-table { width: 100%; border-collapse: collapse; }
.info-table th,.info-table td { padding: var(--space-sm) var(--space-md); text-align: left; border-bottom: 1px solid var(--color-border); }
.info-table th { font-weight: 700; color: var(--color-text); width: 40%; }
.info-table td { color: var(--color-text-muted); }

/* Map */
.map-container { width: 100%; height: 300px; border-radius: var(--radius-lg); overflow: hidden; border: 2px solid var(--color-border); }
.map-container iframe { width: 100%; height: 100%; border: 0; }

/* Page Header */
.page-header { background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%); padding: var(--space-4xl) 0 var(--space-2xl); margin-top: var(--header-height); text-align: center; }
.page-header h1 { color: #fff; font-style: italic; margin-bottom: var(--space-sm); }
.page-header p { color: rgba(255,255,255,0.8); font-size: 1.1rem; max-width: 600px; margin: 0 auto; }

/* Footer */
.site-footer { background-color: var(--color-primary-dark); color: var(--color-bg); padding: var(--space-3xl) 0 var(--space-lg); }
.footer-grid { display: grid; grid-template-columns: 1fr; gap: var(--space-xl); margin-bottom: var(--space-2xl); }
.footer-col h4 { color: var(--color-bg); font-family: var(--font-heading); font-size: 1.2rem; margin-bottom: var(--space-md); }
.footer-col p,.footer-col a { color: rgba(255,255,255,0.7); font-size: 0.9rem; line-height: 1.8; }
.footer-col a:hover { color: var(--color-accent); }
.footer-links { display: flex; flex-direction: column; gap: var(--space-xs); }
.footer-links a { display: inline-block; padding: var(--space-xs) 0; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.15); padding-top: var(--space-lg); text-align: center; font-size: 0.85rem; }
.footer-bottom a { color: #ffffff; text-decoration: underline; }

.social-links { display: flex; gap: var(--space-sm); margin-top: var(--space-lg); }
.social-icon { display: flex; align-items: center; justify-content: center; width: 36px; height: 36px; border-radius: 50%; background-color: rgba(255,255,255,0.15); color: #fff; transition: background-color var(--transition-fast), transform var(--transition-fast); }
.social-icon:hover,.social-icon:focus-visible { background-color: var(--color-accent); color: #fff; transform: translateY(-2px); }
.social-icon svg { width: 20px; height: 20px; fill: currentColor; }

/* Animations */
.anim-from-left,.anim-from-right,.anim-from-below { opacity: 0; transition: opacity 0.7s ease, transform 0.7s ease; }
.anim-from-left { transform: translateX(-40px); }
.anim-from-right { transform: translateX(40px); }
.anim-from-below { transform: translateY(40px); }
.anim-from-left.in-view,.anim-from-right.in-view,.anim-from-below.in-view { opacity: 1; transform: translate(0,0); }
.anim-delay-1 { transition-delay: 0.1s; }
.anim-delay-2 { transition-delay: 0.2s; }
.anim-delay-3 { transition-delay: 0.3s; }
.anim-delay-4 { transition-delay: 0.4s; }

/* Policy list styling */
.policy-list { padding-left: var(--space-lg); }
.policy-list li { margin-bottom: var(--space-sm); color: var(--color-text-muted); list-style: disc; }

@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; }
  .anim-from-left,.anim-from-right,.anim-from-below { opacity: 1; transform: none; }
}

.text-center { text-align: center; }
.text-muted { color: var(--color-text-muted); }
.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }
.mb-2xl { margin-bottom: var(--space-2xl); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

/* Tablet 768px+ */
@media (min-width: 768px) {
  h1 { font-size: 3rem; }
  h2 { font-size: 2.25rem; }
  h3 { font-size: 1.75rem; }
  .hero h1 { font-size: 3.25rem; }
  .hero p { font-size: 1.25rem; }
  .grid-2 { grid-template-columns: 1fr 1fr; }
  .grid-3 { grid-template-columns: 1fr 1fr 1fr; }
  .grid-4 { grid-template-columns: 1fr 1fr; }
  .feature { flex-direction: row; gap: var(--space-2xl); }
  .feature-text { order: 1; flex: 1; }
  .feature-image { order: 2; flex: 0 0 45%; }
  .feature--reverse .feature-text { order: 2; }
  .feature--reverse .feature-image { order: 1; }
  .feature-image img { height: 400px; }
  .footer-grid { grid-template-columns: 2fr 1fr 1fr; }
  .map-container { height: 400px; }
}

/* Desktop 1024px+ */
@media (min-width: 1024px) {
  :root { --header-height: 185px; }
  .site-logo-img { height: 160px; padding: 0; margin: 0; }
  .main-nav { display: flex; align-items: center; }
  .main-nav.is-open { position: static; width: auto; height: auto; background: none; padding: 0; overflow: visible; }
  .nav-list { flex-direction: row; gap: 0; }
  .nav-link { font-size: 0.9rem; padding: var(--space-sm) var(--space-md); }
  .nav-cta { margin-top: 0; margin-left: var(--space-md); }
  .hamburger { display: none; }
  h1 { font-size: 3.5rem; }
  .hero h1 { font-size: 3.75rem; }
  .grid-4 { grid-template-columns: 1fr 1fr 1fr 1fr; }
  .feature-image--circle { width: 350px; height: 350px; }
  .testimonial blockquote { font-size: 1.6rem; }
}

@media (min-width: 1280px) {
  .container { padding: 0 var(--space-xl); }
  .hero h1 { font-size: 4rem; }
}

@media print {
  .site-header,.site-footer,.hamburger,.hero-overlay,.hero-bg { display: none; }
  body { background: #fff; color: #000; font-size: 12pt; }
  a { color: #000; text-decoration: underline; }
}