/* ==========================================================================
   Solstice Studio — Design Tokens
   ========================================================================== */
:root {
  /* Color tokens — sage green + warm terracotta on cream */
  --color-primary: #7C8F6E;
  --color-primary-hover: #6B7D5D;
  --color-on-primary: #FFFFFF;
  --color-secondary: #C97B58;
  --color-secondary-hover: #B5643F;
  --color-accent: #C97B58;
  --color-background: #FBF6EC;
  --color-surface: #FFFFFF;
  --color-surface-alt: #F3ECDC;
  --color-foreground: #3F3A32;
  --color-muted-foreground: #7A7364;
  --color-border: #E7DFCB;
  --color-ring: #7C8F6E;
  --color-destructive: #B5453A;

  /* Typography */
  --font-heading: 'Fraunces', Georgia, serif;
  --font-body: 'Nunito', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Spacing scale (8pt rhythm) */
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-6: 3rem;
  --space-8: 4rem;
  --space-12: 6rem;

  /* Radius & shadow — generous, organic */
  --radius-sm: 12px;
  --radius-md: 22px;
  --radius-lg: 40px;
  --radius-pill: 999px;
  --shadow-sm: 0 2px 8px rgba(63, 58, 50, 0.07);
  --shadow-md: 0 14px 32px rgba(63, 58, 50, 0.10);
  --shadow-lg: 0 26px 60px rgba(63, 58, 50, 0.14);

  --transition-base: 240ms cubic-bezier(0.22, 1, 0.36, 1);
  --header-height: 80px;
}

/* ==========================================================================
   Reset
   ========================================================================== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: var(--header-height); }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  color: var(--color-foreground);
  background: var(--color-background);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
button { font: inherit; cursor: pointer; }
h1, h2, h3, h4 { font-family: var(--font-heading); font-weight: 600; line-height: 1.18; margin: 0 0 var(--space-2); color: var(--color-foreground); }
p { margin: 0 0 var(--space-2); color: var(--color-muted-foreground); }
input, select, textarea { font: inherit; color: inherit; }
table { border-collapse: collapse; width: 100%; }

.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;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
}

.container { max-width: 1200px; margin: 0 auto; padding: 0 var(--space-3); }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-primary);
  color: #fff;
  padding: var(--space-1) var(--space-2);
  z-index: 1000;
  border-radius: 0 0 var(--radius-sm) 0;
}
.skip-link:focus { left: 0; }

:focus-visible {
  outline: 3px solid var(--color-ring);
  outline-offset: 2px;
  border-radius: 4px;
}

.eyebrow {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.8125rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-secondary);
  margin-bottom: var(--space-1);
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.9rem 1.85rem;
  border-radius: var(--radius-pill);
  font-weight: 700;
  font-size: 0.95rem;
  border: 2px solid transparent;
  transition: transform var(--transition-base), background-color var(--transition-base), color var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
  min-height: 44px;
  cursor: pointer;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }
.btn-primary { background: var(--color-secondary); color: var(--color-on-primary); box-shadow: var(--shadow-sm); }
.btn-primary:hover { background: var(--color-secondary-hover); box-shadow: var(--shadow-md); }
.btn-ghost { background: transparent; color: var(--color-primary); border-color: var(--color-primary); }
.btn-ghost:hover { background: rgba(124, 143, 110, 0.1); }
.btn-sm { padding: 0.6rem 1.35rem; font-size: 0.875rem; }
.btn-block { width: 100%; }

/* ==========================================================================
   Header
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(251, 246, 236, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}
.site-header.is-scrolled { border-color: var(--color-border); box-shadow: var(--shadow-sm); }

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  gap: var(--space-3);
}

.brand { display: inline-flex; align-items: center; gap: 0.6rem; }
.brand-mark { color: var(--color-secondary); display: inline-flex; }
.brand-name { font-family: var(--font-heading); font-weight: 600; font-size: 1.3rem; color: var(--color-foreground); }

.main-nav ul { display: flex; gap: var(--space-4); }
.main-nav a {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-foreground);
  position: relative;
  padding: 0.25rem 0;
}
.main-nav a::after {
  content: "";
  position: absolute;
  left: 0; right: 100%;
  bottom: -2px;
  height: 2px;
  background: var(--color-secondary);
  transition: right var(--transition-base);
}
.main-nav a:hover::after, .main-nav a:focus-visible::after { right: 0; }

.header-actions { display: flex; align-items: center; gap: var(--space-2); }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-foreground);
  padding: 0.5rem;
  min-width: 44px;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
}
.nav-toggle .icon-close { display: none; }
.nav-toggle[aria-expanded="true"] .icon-menu { display: none; }
.nav-toggle[aria-expanded="true"] .icon-close { display: block; }

/* ==========================================================================
   Hero
   ========================================================================== */
.hero { padding-block: var(--space-12) var(--space-8); overflow: hidden; }
.hero-inner {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: var(--space-8);
  align-items: center;
}
.hero-copy { max-width: 560px; }
.hero h1 { font-size: clamp(2.4rem, 4.6vw, 3.6rem); margin-bottom: var(--space-3); }
.hero h1 em { font-style: italic; color: var(--color-secondary); }
.hero-lede { font-size: 1.1rem; max-width: 48ch; margin-bottom: var(--space-4); }
.hero-cta { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-bottom: var(--space-4); }
.hero-badges { display: flex; flex-wrap: wrap; gap: var(--space-1) var(--space-4); font-size: 0.9rem; color: var(--color-muted-foreground); font-weight: 600; }
.hero-badges li { display: inline-flex; align-items: center; gap: 0.4rem; }
.hero-badges svg { color: var(--color-primary); flex-shrink: 0; }

.hero-media img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

/* ==========================================================================
   Reveal-on-scroll
   ========================================================================== */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 650ms ease, transform 650ms ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }
.hero .reveal { transition-delay: 60ms; }

/* ==========================================================================
   Section basics
   ========================================================================== */
section { padding-block: var(--space-12); }
.section-head { max-width: 640px; margin-bottom: var(--space-6); }
.section-head h2 { font-size: clamp(1.9rem, 3vw, 2.6rem); }
.section-lede { font-size: 1.05rem; }

/* ==========================================================================
   Class Types
   ========================================================================== */
.classes { background: var(--color-surface); }
.class-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-3); }
.class-card {
  background: var(--color-surface-alt);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}
.class-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.class-icon {
  width: 56px; height: 56px;
  border-radius: 50%;
  background: var(--color-surface);
  color: var(--color-secondary);
  display: inline-flex; align-items: center; justify-content: center;
  margin-bottom: var(--space-2);
  box-shadow: var(--shadow-sm);
}
.class-card h3 { font-size: 1.25rem; margin-bottom: 0.5rem; }
.class-card p { font-size: 0.95rem; margin-bottom: var(--space-2); }
.class-meta { font-size: 0.82rem; font-weight: 700; color: var(--color-primary); text-transform: uppercase; letter-spacing: 0.04em; }

/* ==========================================================================
   About
   ========================================================================== */
.about { background: var(--color-background); }
.about-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: var(--space-8); align-items: center; }
.about-media img { border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); width: 100%; }
.about-copy h2 { font-size: clamp(1.9rem, 3vw, 2.5rem); }
.about-stats { display: flex; gap: var(--space-6); margin-top: var(--space-4); }
.about-stats li { display: flex; flex-direction: column; }
.about-stats strong { font-family: var(--font-heading); font-size: 1.9rem; color: var(--color-secondary); }
.about-stats span { font-size: 0.85rem; color: var(--color-muted-foreground); }

/* ==========================================================================
   Instructors
   ========================================================================== */
.instructors { background: var(--color-surface); }
.instructor-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-4); }
.instructor-card {
  text-align: center;
  background: var(--color-surface-alt);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}
.instructor-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.instructor-card img {
  width: 140px; height: 140px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto var(--space-3);
  box-shadow: var(--shadow-sm);
}
.instructor-card h3 { font-size: 1.2rem; margin-bottom: 0.2rem; }
.instructor-role { font-weight: 700; font-size: 0.85rem; color: var(--color-secondary); text-transform: uppercase; letter-spacing: 0.04em; margin-bottom: var(--space-2); }
.instructor-card p:last-child { font-size: 0.95rem; margin-bottom: 0; }

/* ==========================================================================
   Schedule
   ========================================================================== */
.schedule { background: var(--color-background); }
.schedule-table-wrap { overflow-x: auto; border-radius: var(--radius-md); box-shadow: var(--shadow-sm); background: var(--color-surface); }
.schedule-table { min-width: 640px; }
.schedule-table th, .schedule-table td { padding: 1rem 1.1rem; text-align: left; border-bottom: 1px solid var(--color-border); }
.schedule-table thead th { font-family: var(--font-heading); font-weight: 600; font-size: 1rem; background: var(--color-surface-alt); color: var(--color-foreground); }
.schedule-table thead th:first-child { border-top-left-radius: var(--radius-md); }
.schedule-table thead th:last-child { border-top-right-radius: var(--radius-md); }
.schedule-table tbody th { font-weight: 700; color: var(--color-foreground); white-space: nowrap; font-variant-numeric: tabular-nums; }
.schedule-table tbody tr:last-child td, .schedule-table tbody tr:last-child th { border-bottom: none; }
.schedule-table td { color: var(--color-muted-foreground); }

.tag {
  display: inline-block;
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-pill);
  font-size: 0.82rem;
  font-weight: 700;
  white-space: nowrap;
}
.tag-vinyasa { background: rgba(201, 123, 88, 0.16); color: #9C5636; }
.tag-yin { background: rgba(124, 143, 110, 0.18); color: #566A4A; }
.tag-pilates { background: rgba(63, 58, 50, 0.08); color: #5A5346; }
.tag-breath { background: rgba(217, 143, 104, 0.18); color: #A15E36; }

.schedule-note { margin-top: var(--space-3); font-size: 0.92rem; font-style: italic; }

/* ==========================================================================
   Testimonials
   ========================================================================== */
.testimonials { background: var(--color-surface); }
.testimonial-carousel { max-width: 720px; margin: 0 auto; text-align: center; }
.testimonial-track { position: relative; min-height: 220px; }
.testimonial-card {
  margin: 0;
  position: absolute;
  inset: 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base);
}
.testimonial-card.is-active { opacity: 1; visibility: visible; position: relative; }
.stars { color: var(--color-secondary); letter-spacing: 0.2em; margin-bottom: var(--space-2); font-size: 1.1rem; }
.testimonial-card blockquote { margin: 0 0 var(--space-3); font-family: var(--font-heading); font-size: 1.4rem; font-style: italic; color: var(--color-foreground); line-height: 1.45; }
.testimonial-card figcaption { font-size: 0.9rem; font-weight: 700; color: var(--color-muted-foreground); }
.testimonial-controls { display: flex; align-items: center; justify-content: center; gap: var(--space-3); margin-top: var(--space-4); }
.testimonial-btn {
  width: 44px; height: 44px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  background: var(--color-surface-alt);
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--color-foreground);
  transition: background-color var(--transition-base), border-color var(--transition-base);
}
.testimonial-btn:hover { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }
.testimonial-dots { display: flex; gap: 0.5rem; }
.testimonial-dots button {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--color-border);
  border: none; padding: 0;
}
.testimonial-dots button.is-active { background: var(--color-secondary); width: 22px; border-radius: 999px; transition: width var(--transition-base), background-color var(--transition-base); }

/* ==========================================================================
   Visit
   ========================================================================== */
.visit { background: var(--color-background); }
.visit-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-8); align-items: start; }
.info-block { margin-bottom: var(--space-4); }
.info-block h3 { display: flex; align-items: center; gap: 0.5rem; font-size: 1.05rem; color: var(--color-secondary); font-family: var(--font-body); font-weight: 700; margin-bottom: 0.5rem; }
.info-block h3 svg { flex-shrink: 0; }
.info-block p a { color: var(--color-foreground); font-weight: 600; }
.info-block p a:hover { color: var(--color-secondary); }

.hours-list li { display: flex; justify-content: space-between; padding: 0.4rem 0; border-bottom: 1px solid var(--color-border); font-size: 0.95rem; }
.hours-list li span:first-child { color: var(--color-foreground); font-weight: 600; }
.hours-list li span:last-child { font-variant-numeric: tabular-nums; color: var(--color-muted-foreground); }

.social-links { display: flex; gap: var(--space-2); margin-top: var(--space-4); }
.social-links a {
  width: 44px; height: 44px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--color-secondary);
  transition: background-color var(--transition-base), color var(--transition-base);
}
.social-links a:hover { background: var(--color-secondary); color: #fff; }

.visit-map { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-md); min-height: 380px; border: 1px solid var(--color-border); }
.visit-map iframe { width: 100%; height: 100%; min-height: 380px; border: 0; display: block; }

/* ==========================================================================
   Book / Contact
   ========================================================================== */
.book { background: var(--color-surface); }
.book-grid { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: var(--space-8); align-items: start; }
.book-copy h2 { font-size: clamp(1.9rem, 3vw, 2.5rem); }

.book-form { background: var(--color-surface-alt); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--space-4); }
.form-row { display: flex; gap: var(--space-3); }
.form-row .field { flex: 1; }
.field { margin-bottom: var(--space-3); display: flex; flex-direction: column; }
.field label, .field-legend { font-weight: 700; font-size: 0.9rem; margin-bottom: 0.4rem; color: var(--color-foreground); display: block; }
.field .optional { font-weight: 400; color: var(--color-muted-foreground); }
.field input, .field select, .field textarea {
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.75rem 0.9rem;
  background: var(--color-surface);
  min-height: 44px;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}
.field input:focus, .field select:focus, .field textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(124, 143, 110, 0.18);
  outline: none;
}
.field textarea { resize: vertical; min-height: 88px; }
.field.has-error input, .field.has-error select, .field.has-error textarea { border-color: var(--color-destructive); }
.field-error { color: var(--color-destructive); font-size: 0.82rem; margin-top: 0.3rem; min-height: 1.1em; }

.radio-group { display: flex; flex-wrap: wrap; gap: 0.6rem; }
.radio-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.6rem 1.1rem;
  border-radius: var(--radius-pill);
  border: 1.5px solid var(--color-border);
  background: var(--color-surface);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  min-height: 44px;
  transition: border-color var(--transition-base), background-color var(--transition-base);
}
.radio-pill:has(input:checked) { border-color: var(--color-primary); background: rgba(124, 143, 110, 0.12); }
.radio-pill input { accent-color: var(--color-primary); width: 16px; height: 16px; }

.form-status { margin: var(--space-2) 0 0; font-size: 0.9rem; font-weight: 700; text-align: center; min-height: 1.2em; }
.form-status.is-success { color: #4A6B3B; }
.form-status.is-error { color: var(--color-destructive); }

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer { background: #3F3A32; color: rgba(251,246,236,0.78); padding-block: var(--space-6); }
.footer-inner { display: flex; flex-direction: column; align-items: center; text-align: center; gap: var(--space-3); }
.footer-top { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: var(--space-4); width: 100%; }
.site-footer .brand-mark, .site-footer .brand-name { color: #FBF6EC; }
.footer-nav { display: flex; flex-wrap: wrap; gap: var(--space-3); }
.footer-nav a { font-weight: 600; font-size: 0.9rem; color: rgba(251,246,236,0.78); }
.footer-nav a:hover { color: #FBF6EC; }
.footer-social a { border-color: rgba(251,246,236,0.25); color: rgba(251,246,236,0.85); width: 40px; height: 40px; }
.footer-social a:hover { background: var(--color-secondary); color: #fff; }
.footer-note, .footer-copy { font-size: 0.85rem; color: rgba(251,246,236,0.55); margin: 0; }

/* ==========================================================================
   Back to top
   ========================================================================== */
.back-to-top {
  position: fixed;
  right: var(--space-3);
  bottom: var(--space-3);
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--color-secondary);
  color: #fff;
  border: none;
  display: none;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  z-index: 90;
  transition: transform var(--transition-base), background-color var(--transition-base);
}
.back-to-top.is-visible { display: inline-flex; }
.back-to-top:hover { background: var(--color-secondary-hover); transform: translateY(-3px); }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 1024px) {
  .class-grid { grid-template-columns: repeat(2, 1fr); }
  .instructor-grid { grid-template-columns: repeat(3, 1fr); gap: var(--space-3); }
  .book-grid { grid-template-columns: 1fr; }
  .hero-inner { grid-template-columns: 1fr; }
  .hero-media { order: -1; }
  .hero-copy { max-width: none; }
}

@media (max-width: 860px) {
  .nav-toggle { display: inline-flex; }
  .main-nav {
    position: fixed;
    top: var(--header-height);
    left: 0; right: 0;
    background: var(--color-background);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-base), transform var(--transition-base), visibility var(--transition-base);
    max-height: calc(100vh - var(--header-height));
    overflow-y: auto;
  }
  .main-nav.is-open { opacity: 1; transform: translateY(0); visibility: visible; }
  .main-nav ul { flex-direction: column; gap: 0; padding: var(--space-2) var(--space-3); }
  .main-nav a { display: block; padding: var(--space-2) 0; border-bottom: 1px solid var(--color-border); }
  .header-actions .btn-sm { display: none; }

  .about-grid, .visit-grid { grid-template-columns: 1fr; }
  .about-media { margin-bottom: var(--space-4); }
  .instructor-grid { grid-template-columns: 1fr 1fr; }

  .form-row { flex-direction: column; gap: 0; }
}

@media (max-width: 640px) {
  section { padding-block: var(--space-8); }
  .hero { padding-top: calc(var(--header-height) + var(--space-4)); padding-bottom: var(--space-6); }
  .hero-cta { flex-direction: column; align-items: stretch; }
  .hero-cta .btn { width: 100%; }
  .class-grid { grid-template-columns: 1fr; }
  .instructor-grid { grid-template-columns: 1fr; }
  .about-stats { flex-wrap: wrap; gap: var(--space-3); }
  .testimonial-card blockquote { font-size: 1.15rem; }
  .footer-top { flex-direction: column; }
}