/* Mindful Potteries
   Layout: single column of full-width bands, porcelain and celadon alternating,
   one cobalt band for booking. Palette taken from blue-and-white Potteries
   tableware: underglaze cobalt on porcelain, with a celadon glaze for quiet bands. */

:root {
  --porcelain: #f3f6f7;   /* page ground, a cool white with a blue bias */
  --glaze: #e1eae8;       /* celadon band */
  --cobalt: #24428f;      /* accent, buttons, links */
  --cobalt-deep: #16295c; /* headings */
  --ink: #1c2331;         /* body text */
  --muted: #566276;
  --line: #c6d1d6;
  --surface: #ffffff;     /* cards and inputs */
  --on-cobalt: #f3f6f7;
  --cobalt-band: #1f3a80;
  --wheel: #3a4560;       /* potter's wheel head in the 3D hero */
  --pan: #d3dddb;         /* splash pan around the wheel */

  --font-display: "Bricolage Grotesque", "Avenir Next", "Segoe UI", system-ui, sans-serif;
  --font-body: "Source Serif 4", Georgia, "Times New Roman", serif;

  --step--1: 0.875rem;
  --step-0: 1.0625rem;
  --step-1: 1.3rem;
  --step-2: 1.7rem;
  --step-3: clamp(2rem, 1.4rem + 2.4vw, 2.75rem);
  --step-4: clamp(2.9rem, 1.6rem + 5.5vw, 5.25rem);

  --radius: 6px;
  --gutter-l: max(16px, env(safe-area-inset-left, 0px));
  --gutter-r: max(16px, env(safe-area-inset-right, 0px));
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --porcelain: #0e1424;
    --glaze: #141d33;
    --cobalt: #93abf2;
    --cobalt-deep: #cdd9fb;
    --ink: #e2e8f2;
    --muted: #9ba7bd;
    --line: #2a3555;
    --surface: #18223b;
    --on-cobalt: #f3f6f7;
    --cobalt-band: #1b2f68;
    --wheel: #56627f;
    --pan: #1d2742;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --porcelain: #0e1424;
  --glaze: #141d33;
  --cobalt: #93abf2;
  --cobalt-deep: #cdd9fb;
  --ink: #e2e8f2;
  --muted: #9ba7bd;
  --line: #2a3555;
  --surface: #18223b;
  --on-cobalt: #f3f6f7;
  --cobalt-band: #1b2f68;
  --wheel: #56627f;
  --pan: #1d2742;
  color-scheme: dark;
}

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

html { scroll-behavior: smooth; scroll-padding-top: 80px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--porcelain);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--step-0);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Paint the phone's top inset behind the sticky header */
body::before {
  content: "";
  position: fixed;
  inset: 0 0 auto;
  height: env(safe-area-inset-top, 0px);
  z-index: 10;
  background: var(--porcelain);
}

h1, h2, h3 {
  font-family: var(--font-display);
  color: var(--cobalt-deep);
  line-height: 1.1;
  margin: 0;
  text-wrap: balance;
}
h2 { font-size: var(--step-3); font-weight: 600; letter-spacing: -0.01em; }
h3 { font-size: var(--step-1); font-weight: 600; }
p { margin: 0; }

a { color: var(--cobalt); text-underline-offset: 0.18em; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--cobalt); outline-offset: 3px; border-radius: 2px; }

.wrap {
  width: 100%;
  max-width: 72rem;
  margin-inline: auto;
  padding-left: var(--gutter-l);
  padding-right: var(--gutter-r);
}
.narrow { max-width: 46rem; }

.skip {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--cobalt);
  color: var(--on-cobalt);
  padding: 0.5rem 1rem;
  z-index: 20;
}
.skip:focus { left: var(--gutter-l); top: env(safe-area-inset-top, 0px); }

.eyebrow {
  font-family: var(--font-display);
  font-size: var(--step--1);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--cobalt);
}

/* Header */
.site-header {
  position: sticky;
  top: env(safe-area-inset-top, 0px);
  z-index: 5;
  background: color-mix(in srgb, var(--porcelain) 92%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 64px;
  flex-wrap: wrap;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--cobalt-deep);
  text-decoration: none;
}
.brand-mark { width: 30px; height: 30px; color: var(--cobalt); }

.site-nav { display: flex; align-items: center; gap: 1.5rem; font-family: var(--font-display); }
.site-nav a { color: var(--ink); text-decoration: none; font-weight: 500; }
.site-nav a:hover { color: var(--cobalt); }
.site-nav .nav-cta {
  color: var(--on-cobalt);
  background: var(--cobalt);
  padding: 0.45rem 0.95rem;
  border-radius: 999px;
}
.site-nav .nav-cta:hover { color: var(--on-cobalt); filter: brightness(1.1); }

.nav-toggle {
  display: none;
  font: 600 0.95rem var(--font-display);
  color: var(--cobalt-deep);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.4rem 0.9rem;
  cursor: pointer;
}

@media (max-width: 760px) {
  .nav-toggle { display: inline-block; }
  .site-nav {
    display: none;
    flex-basis: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding-bottom: 0.75rem;
  }
  .site-nav.is-open { display: flex; }
  .site-nav a { padding: 0.7rem 0; border-top: 1px solid var(--line); }
  .site-nav .nav-cta { margin-top: 0.75rem; text-align: center; border-top: 0; padding: 0.7rem; }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font: 600 1rem var(--font-display);
  text-decoration: none;
  padding: 0.8rem 1.35rem;
  border-radius: 999px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: background-color 0.2s, color 0.2s, border-color 0.2s;
}
.btn-primary { background: var(--cobalt); color: var(--on-cobalt); }
.btn-primary:hover { filter: brightness(1.1); }
.btn-quiet { color: var(--cobalt-deep); border-color: var(--line); }
.btn-quiet:hover { border-color: var(--cobalt); }
.btn-ring { background: transparent; color: var(--cobalt); border-color: var(--cobalt); }
.btn-ring:hover, .btn-ring[aria-pressed="true"] { background: var(--cobalt); color: var(--on-cobalt); }
.btn-light { background: var(--on-cobalt); color: #16295c; }
.btn-light:hover { filter: brightness(0.95); }

/* Hero */
.hero { padding-block: clamp(2.5rem, 6vw, 5.5rem); }
.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}
.hero-copy { display: grid; gap: 1.25rem; min-width: 0; }
.hero h1 {
  font-size: var(--step-4);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 0.95;
}
.lede { font-size: 1.2rem; max-width: 34em; color: var(--ink); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 0.5rem; }

@media (max-width: 860px) {
  .hero-inner { grid-template-columns: minmax(0, 1fr); }
}

/* Breathing wheel: concentric throwing rings that swell with the breath */
.wheel { margin: 0; display: grid; gap: 1.25rem; justify-items: center; }
.wheel-stage {
  position: relative;
  width: min(100%, 380px);
  aspect-ratio: 1;
  max-width: 100%;
  display: grid;
  place-items: center;
}
.wheel-rings {
  position: absolute;
  inset: 0;
  transform: scale(0.8);
  transition: transform 4s cubic-bezier(0.45, 0, 0.55, 1);
}
.wheel-rings span {
  position: absolute;
  border-radius: 50%;
  border: 2px solid var(--cobalt);
  inset: var(--i);
  opacity: var(--o);
}
.wheel-rings span:nth-child(1) { --i: 0%;  --o: 0.25; border-width: 1px; }
.wheel-rings span:nth-child(2) { --i: 7%;  --o: 0.4; }
.wheel-rings span:nth-child(3) { --i: 14%; --o: 0.6; }
.wheel-rings span:nth-child(4) { --i: 21%; --o: 0.8; }
.wheel-rings span:nth-child(5) {
  --i: 28%; --o: 1;
  background: var(--glaze);
  border-width: 3px;
}
.wheel-rings.is-in { transform: scale(1); }
.wheel-rings.is-out { transform: scale(0.8); transition-duration: 6s; }
.wheel-prompt {
  position: relative;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  color: var(--cobalt-deep);
  text-align: center;
  max-width: 6.5em;
  line-height: 1.2;
}
.wheel figcaption { display: grid; gap: 0.5rem; justify-items: center; text-align: center; }
.wheel-note { font-size: var(--step--1); color: var(--muted); }

/* 3D potter's wheel (pot3d.js adds .has-3d when WebGL works) */
.wheel-stage canvas { display: none; }
.wheel-tools { display: none; }
.has-3d .wheel-stage { width: min(100%, 460px); }
.has-3d .wheel-stage canvas {
  display: block;
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  touch-action: pan-y;
  -webkit-tap-highlight-color: transparent;
}
.has-3d .wheel-stage canvas.is-dragging { cursor: grabbing; }
.has-3d .wheel-rings { display: none; }
.has-3d .wheel-prompt {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  max-width: none;
  white-space: nowrap;
  padding: 0.3rem 0.9rem;
  border-radius: 999px;
  background: color-mix(in srgb, var(--porcelain) 85%, transparent);
  pointer-events: none;
  z-index: 1;
}
.has-3d .wheel-tools {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.25rem 0.75rem;
  font-size: var(--step--1);
  color: var(--muted);
}
.link-btn {
  font: 600 var(--step--1) var(--font-display);
  color: var(--cobalt);
  background: none;
  border: 0;
  padding: 0;
  text-decoration: underline;
  text-underline-offset: 0.18em;
  cursor: pointer;
}

@media (prefers-reduced-motion: reduce) {
  .wheel-rings, .wheel-rings.is-in, .wheel-rings.is-out { transform: scale(0.86); transition: none; }
}

/* Bands */
.band { padding-block: clamp(3rem, 7vw, 5.5rem); }
.band-glaze { background: var(--glaze); }
.band-cobalt { background: var(--cobalt-band); color: var(--on-cobalt); }
.band-cobalt h2 { color: var(--on-cobalt); }
.band-cobalt .eyebrow { color: #b9c9f5; }

.section-head { display: grid; gap: 0.75rem; margin-bottom: 2.5rem; max-width: 40rem; }
.section-lede { color: var(--muted); }

/* Session cards */
.cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
}
@media (max-width: 680px) { .cards { grid-template-columns: minmax(0, 1fr); } }
.card {
  display: grid;
  grid-template-rows: auto auto 1fr auto;
  gap: 0.75rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.6rem;
  min-width: 0;
}
.card-meta {
  font-family: var(--font-display);
  font-size: var(--step--1);
  color: var(--muted);
  letter-spacing: 0.02em;
}
.card-price {
  font-size: var(--step--1);
  color: var(--muted);
  padding-top: 0.9rem;
  border-top: 1px dashed var(--line);
}
.card-price a { font-family: var(--font-display); font-weight: 600; }
.tbc {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--cobalt-deep);
  margin-right: 0.35rem;
}

/* Sequence */
.flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 2rem;
  counter-reset: step;
}
@media (max-width: 900px) { .flow { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 520px) { .flow { grid-template-columns: minmax(0, 1fr); gap: 1.5rem; } }
.flow li { display: grid; gap: 0.5rem; align-content: start; counter-increment: step; min-width: 0; }
.flow li::before {
  content: counter(step);
  display: grid;
  place-items: center;
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 50%;
  border: 2px solid var(--cobalt);
  color: var(--cobalt);
  font: 700 1rem var(--font-display);
  margin-bottom: 0.25rem;
}
.flow p { color: var(--muted); }

/* Timetable */
.table-scroll { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.timetable { width: 100%; border-collapse: collapse; min-width: 34rem; font-variant-numeric: tabular-nums; }
.timetable th, .timetable td { text-align: left; padding: 0.95rem 1.1rem; border-bottom: 1px solid var(--line); }
.timetable tbody tr:last-child td { border-bottom: 0; }
.timetable th {
  font: 600 var(--step--1) var(--font-display);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}
.timetable strong { font-family: var(--font-display); color: var(--cobalt-deep); margin-right: 0.35rem; }
.pill {
  display: inline-block;
  font: 600 0.8rem var(--font-display);
  padding: 0.2rem 0.65rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--muted);
  white-space: nowrap;
}
.pill-open { border-color: var(--cobalt); color: var(--cobalt); }

.towns { margin-top: 3rem; display: grid; gap: 1rem; }
.towns-title { font-size: var(--step--1); text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); }
.towns-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 0.75rem;
}
@media (max-width: 760px) { .towns-list { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.towns-list li {
  font: 600 1.05rem var(--font-display);
  color: var(--cobalt-deep);
  padding-top: 0.75rem;
  border-top: 3px solid var(--cobalt);
}

/* About */
.about {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}
@media (max-width: 760px) { .about { grid-template-columns: minmax(0, 1fr); } }
.about-copy { display: grid; gap: 1rem; max-width: 38rem; min-width: 0; }
.about-portrait {
  position: relative;
  width: min(100%, 320px);
  max-width: 100%;
  aspect-ratio: 1;
  justify-self: center;
  border-radius: 50%;
  background: var(--porcelain);
}
.about-portrait span {
  position: absolute;
  border-radius: 50%;
  border: 2px solid var(--cobalt);
  opacity: 0.6;
}
.about-portrait span:nth-child(1) { inset: 8%; }
.about-portrait span:nth-child(2) { inset: 20%; opacity: 0.8; }
.about-portrait span:nth-child(3) { inset: 32%; opacity: 1; background: var(--glaze); }
.placeholder {
  color: var(--muted);
  font-style: italic;
  border-left: 3px solid var(--line);
  padding-left: 1rem;
}

/* FAQ */
.faq { display: grid; border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding-block: 1.15rem;
  font: 600 1.1rem var(--font-display);
  color: var(--cobalt-deep);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  font-size: 1.5rem;
  line-height: 1;
  color: var(--cobalt);
  flex-shrink: 0;
}
.faq details[open] summary::after { content: "–"; }
.faq details p { padding-bottom: 1.25rem; color: var(--muted); max-width: 40em; }

/* Contact */
.contact {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}
@media (max-width: 760px) { .contact { grid-template-columns: minmax(0, 1fr); } }
.contact-copy { display: grid; gap: 1rem; min-width: 0; }
.contact-copy p:last-child { color: #d7e0f8; max-width: 30em; }
.contact-form { display: grid; gap: 1rem; min-width: 0; }
.field { display: grid; gap: 0.35rem; }
.field label { font: 600 0.95rem var(--font-display); }
.optional { font-weight: 400; color: #b9c9f5; }
.field input, .field select, .field textarea {
  font: inherit;
  font-size: 1rem;
  width: 100%;
  padding: 0.7rem 0.85rem;
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.35);
  background: rgba(255, 255, 255, 0.08);
  color: var(--on-cobalt);
  color-scheme: dark;
}
.field input:focus-visible, .field select:focus-visible, .field textarea:focus-visible {
  outline: 3px solid #b9c9f5;
  outline-offset: 1px;
}
.field select option { color: #1c2331; background: #ffffff; }
.contact-form .btn { justify-self: start; }
.form-status { min-height: 1.5em; color: #d7e0f8; font-size: var(--step--1); }

/* Footer with bottle-kiln skyline */
.site-footer { background: var(--porcelain); color: var(--muted); }
.kilns { display: block; width: min(100%, 640px); height: auto; margin-inline: auto; color: var(--cobalt-deep); opacity: 0.85; }
.footer-inner {
  background: var(--cobalt-deep);
  color: var(--porcelain);
  display: grid;
  gap: 0.35rem;
  padding-block: 2rem 2.5rem;
  max-width: none;
}
.footer-brand { font: 700 1.2rem var(--font-display); }
.footer-small { font-size: var(--step--1); opacity: 0.75; }