/* ───────────────────────────────────────────────────────────────
   STUDIO RHEI — Shared Stylesheet
   Πάντα ῥεῖ · everything flows
   A ceramics studio in Dalston, East London
   ─────────────────────────────────────────────────────────────── */

:root {
  --paper:   #F4F1EA;   /* page background — warm paper */
  --ink:     #1A1916;   /* near-black */
  --accent:  #A07C5B;   /* warm clay-stone — brand accent */
  --accent-d:#8A6849;   /* darker accent for hovers */
  --sage:    #7E9A86;   /* tasters */
  --slate:   #6E7E96;   /* workshops */
  --muted:   #8C857A;   /* secondary text */
  --border:  #E2DBD0;   /* dividers */
  --surface: #FBF9F4;   /* off-white sections */

  --font-head: 'Jost', 'Helvetica Neue', Arial, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;

  --max: 1200px;
  --pad: clamp(20px, 5vw, 80px);
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 14px;
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { display: block; max-width: 100%; }
a   { color: inherit; text-decoration: none; }

/* ── NAV ── */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 var(--pad);
  height: 58px;
  background: rgba(244,241,234,.86);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(226,219,208,.55);
  transition: border-color .3s, background .3s;
}
.nav.scrolled { border-bottom-color: var(--border); }

.nav-logo {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-head);
  font-size: 14px;
  font-weight: 400;
  letter-spacing: .3em;
  text-transform: uppercase;
  color: var(--ink);
}
.nav-logo::before { content: ''; width: 6px; height: 6px; background: var(--accent); flex-shrink: 0; }
.nav-logo span { color: var(--accent); }

.nav-links { display: flex; align-items: center; gap: 26px; list-style: none; }
.nav-links a {
  font-family: var(--font-head);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--muted);
  transition: color .2s;
  position: relative;
}
.nav-links a:hover,
.nav-links a.active { color: var(--ink); }
.nav-links a.active::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: -7px;
  height: 1px; background: var(--accent);
}

.nav-hamburger { display: none; background: none; border: none; cursor: pointer; padding: 4px; color: var(--ink); }

/* ── Nav dropdown (Classes → class types) ── */
.nav-dd { position: relative; }
.nav-dd > a { display: inline-flex; align-items: center; gap: 5px; }
.nav-dd > a .caret { transition: transform .2s; opacity: .7; }
.nav-sub {
  position: absolute; top: 100%; left: 50%;
  transform: translateX(-50%) translateY(8px);
  background: var(--paper); border: 1px solid var(--border);
  min-width: 184px; padding: 7px 0; list-style: none; margin: 0;
  opacity: 0; visibility: hidden; transition: opacity .18s ease, transform .18s ease;
  box-shadow: 0 18px 50px rgba(26,25,22,.13); z-index: 120;
}
.nav-dd:hover .nav-sub, .nav-dd:focus-within .nav-sub { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.nav-dd:hover > a .caret { transform: rotate(180deg); }
.nav-sub li { width: 100%; }
.nav-sub a {
  display: block; padding: 9px 22px; font-family: var(--font-head);
  font-size: 11px; letter-spacing: .14em; text-transform: uppercase;
  color: var(--muted); white-space: nowrap; transition: color .15s, background .15s;
}
.nav-sub a:hover { color: var(--ink); background: var(--surface); }
.nav-sub a::after { display: none; }

@media (max-width: 880px) {
  .nav-links { display: none; }
  .nav-links.open {
    display: flex; flex-direction: column; align-items: flex-start;
    position: fixed; top: 58px; left: 0; right: 0;
    background: var(--paper); padding: 14px var(--pad) 28px;
    border-bottom: 1px solid var(--border); gap: 0;
  }
  .nav-links.open li { width: 100%; }
  .nav-links.open a { display: block; padding: 13px 0; font-size: 14px; }
  .nav-links.open a.active::after { display: none; }
  .nav-hamburger { display: block; }
  /* dropdown becomes a collapsible accordion inside the mobile menu — nested under Classes */
  .nav-dd > a .caret { display: inline-block; margin-left: 6px; }
  .nav-dd.open > a .caret { transform: rotate(180deg); }
  .nav-sub {
    position: static; transform: none; box-shadow: none; border: none;
    min-width: 0; background: transparent;
    display: none;                /* collapsed until Classes is tapped */
  }
  .nav-dd.open .nav-sub { display: block; padding: 2px 0 10px; }
  .nav-dd.open .nav-sub { display: block; opacity: 1; visibility: visible; padding: 4px 0 12px; margin-left: 4px; border-left: 2px solid var(--border); }
  .nav-sub a { padding: 10px 0 10px 20px; font-size: 12.5px; color: var(--ink); }
  .nav-sub a::before { content: '›'; color: var(--accent); margin-right: 8px; }
}

/* ── PAGE WRAPPER ── */
.page { padding-top: 58px; }

/* ── TYPOGRAPHY ── */
h1, h2, h3, h4 { font-family: var(--font-head); font-weight: 300; line-height: 1.12; }

.section-title {
  font-family: var(--font-head);
  font-size: clamp(24px, 3.4vw, 38px);
  font-weight: 300;
  letter-spacing: -.005em;
  margin-bottom: 14px;
}
.section-sub {
  font-family: var(--font-head);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 13px;
}
.section-lead { font-size: 14px; line-height: 1.75; color: var(--muted); max-width: 560px; }
.section-rule { width: 40px; height: 1px; background: var(--accent); margin-bottom: 24px; }

/* ── CONTAINER ── */
.container { max-width: var(--max); margin: 0 auto; padding: 0 var(--pad); }

/* ── BUTTONS ── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 24px;
  font-family: var(--font-head);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: .18em;
  text-transform: uppercase;
  border: 1px solid var(--ink);
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  transition: background .2s, color .2s, border-color .2s;
}
.btn:hover { background: var(--ink); color: var(--paper); }
.btn-fill { background: var(--ink); color: var(--paper); }
.btn-fill:hover { background: var(--accent); border-color: var(--accent); }
.btn-accent { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn-accent:hover { background: var(--accent-d); border-color: var(--accent-d); }
.btn-light { border-color: rgba(244,241,234,.5); color: var(--paper); }
.btn-light:hover { background: rgba(244,241,234,.14); border-color: var(--paper); }

/* ── PAGE HEADER (inner pages) — editorial light split ── */
.page-header {
  min-height: 46vh;
  position: relative;
  display: flex; align-items: center;
  background: center 30% / cover no-repeat;
}
.page-header-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(100deg, var(--paper) 0%, var(--paper) 40%, rgba(244,241,234,.62) 60%, rgba(244,241,234,0) 88%);
}
.page-header-content { position: relative; z-index: 2; padding: clamp(40px, 6vw, 76px) var(--pad); max-width: 640px; }
.page-header-content .section-sub { color: var(--accent); }
.page-header-content h1 {
  font-family: var(--font-head);
  font-size: clamp(31px, 5vw, 58px);
  font-weight: 300;
  color: var(--ink);
  line-height: 1.05;
  letter-spacing: -.012em;
  margin-bottom: 14px;
}
.page-header-content h1::after { content: ''; display: block; width: 44px; height: 2px; background: var(--accent); margin-top: 18px; }
.page-header-content p { font-size: 14px; color: var(--muted); max-width: 440px; line-height: 1.75; }
@media (max-width: 720px) {
  .page-header-overlay { background: linear-gradient(125deg, var(--paper) 0%, var(--paper) 55%, rgba(244,241,234,.5) 82%, rgba(244,241,234,.2) 100%); }
}

/* ── INFO BAR — light, hairline ── */
.info-bar { background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); padding: 16px var(--pad); }
.info-bar-inner { max-width: var(--max); margin: 0 auto; display: flex; gap: 30px; flex-wrap: wrap; align-items: center; }
.info-pill { display: flex; align-items: center; gap: 8px; font-size: 12px; color: var(--muted); letter-spacing: .02em; }
.info-pill svg { flex-shrink: 0; color: var(--accent); opacity: .9; }
.info-pill strong { color: var(--ink); font-weight: 500; }

/* ── SECTION DIVIDER ── */
.section-divider { border: none; border-top: 1px solid var(--border); margin: 0; }

/* ── FOOTER ── */
.footer { background: var(--ink); color: var(--paper); padding: 64px var(--pad) 38px; }
.footer-inner {
  max-width: var(--max); margin: 0 auto;
  display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 48px;
  padding-bottom: 44px; border-bottom: 1px solid rgba(255,255,255,.1);
}
.footer-logo { font-family: var(--font-head); font-size: 17px; font-weight: 300; letter-spacing: .28em; text-transform: uppercase; margin-bottom: 16px; }
.footer-logo span { color: var(--accent); }
.footer-tagline { font-size: 13px; color: rgba(244,241,234,.5); line-height: 1.7; max-width: 280px; }
.footer-motto { font-family: var(--font-head); font-style: italic; font-size: 15px; color: rgba(244,241,234,.65); margin-top: 14px; }
.footer-heading { font-family: var(--font-head); font-size: 11px; font-weight: 400; letter-spacing: .18em; text-transform: uppercase; color: rgba(244,241,234,.4); margin-bottom: 16px; }
.footer-links { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-links a { font-size: 13px; color: rgba(244,241,234,.7); transition: color .2s; }
.footer-links a:hover { color: var(--paper); }
.footer-bottom { max-width: var(--max); margin: 0 auto; padding-top: 26px; display: flex; align-items: center; justify-content: space-between; font-size: 11px; color: rgba(244,241,234,.32); flex-wrap: wrap; gap: 12px; }
.footer-socials { display: flex; gap: 20px; }
.footer-socials a { color: rgba(244,241,234,.5); font-size: 11px; letter-spacing: .1em; text-transform: uppercase; }
.footer-socials a:hover { color: var(--paper); }

@media (max-width: 768px) { .footer-inner { grid-template-columns: 1fr; gap: 32px; } }

/* ── SHARED MODAL (waitlist / enquiry) ── */
.sr-modal-ov {
  position: fixed; inset: 0; z-index: 9999;
  background: rgba(26,25,22,.82); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  display: none; align-items: flex-end; justify-content: center;
}
.sr-modal-ov.open { display: flex; }
.sr-modal {
  background: var(--paper); width: 100%; max-width: 500px;
  max-height: 96vh; overflow-y: auto; position: relative; padding: 40px 40px 36px;
}
.sr-modal-close {
  position: absolute; top: 16px; right: 20px;
  background: none; border: none; font-size: 28px; line-height: 1; color: var(--muted); cursor: pointer; z-index: 2;
}
.sr-modal-close:hover { color: var(--ink); }
.sr-modal h3 { font-family: var(--font-head); font-size: 24px; font-weight: 300; margin-bottom: 8px; }
.sr-modal .sr-modal-sub { font-size: 13.5px; color: var(--muted); line-height: 1.65; margin-bottom: 24px; }

.sr-field { margin-bottom: 14px; }
.sr-field label { display: block; font-family: var(--font-head); font-size: 11px; font-weight: 400; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); margin-bottom: 7px; }
.sr-field input, .sr-field select, .sr-field textarea {
  width: 100%; padding: 12px 14px; box-sizing: border-box;
  border: 1px solid var(--border); background: #fff;
  font-family: var(--font-body); font-size: 14px; color: var(--ink); outline: none;
}
.sr-field input:focus, .sr-field select:focus, .sr-field textarea:focus { border-color: var(--accent); }
.sr-field textarea { resize: vertical; min-height: 92px; }
.sr-field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.sr-form-err { display: none; background: #FBEAEA; color: #9B2C2C; font-size: 13px; padding: 10px 14px; line-height: 1.5; margin-bottom: 14px; }
.sr-form-note { font-size: 11.5px; color: var(--muted); line-height: 1.7; text-align: center; margin-top: 12px; }

.sr-success { text-align: center; padding: 12px 0 4px; }
.sr-success-icon { width: 56px; height: 56px; border-radius: 50%; background: var(--accent); display: flex; align-items: center; justify-content: center; margin: 0 auto 18px; }
.sr-success h3 { margin-bottom: 10px; }
.sr-success p { font-size: 13.5px; color: var(--muted); line-height: 1.8; max-width: 320px; margin: 0 auto; }

@media (min-width: 640px) { .sr-modal-ov { align-items: center; padding: 20px; } }
@media (max-width: 560px) { .sr-field-row { grid-template-columns: 1fr; } .sr-modal { padding: 36px 24px 28px; } }

/* ── UTILITIES ── */
.text-accent { color: var(--accent); }
.text-muted  { color: var(--muted); }
.italic      { font-style: italic; }
.bg-surface  { background: var(--surface); }