/* Electric Tanning and Beauty Salon — stylesheet (mobile-first: 480 / 768 / 1024) */

:root {
  /* Colour */
  --c-plum: #2A1838;
  --c-plum-deep: #1E1029;
  --c-plum-soft: #3A2549;
  --c-uv: #7A4DFF;
  --c-uv-ink: #5A2EE0;
  --c-glow: #D9CCFF;
  --c-glow-white: #F6F2FF;
  --c-bronze: #C0803F;
  --c-bronze-light: #E3B27A;
  --c-bronze-ink: #8A5420;
  --c-pearl: #F7F4FB;
  --c-white: #FFFFFF;
  --c-text: #2A1838;
  --c-text-soft: #5A4B66;
  --c-on-dark: #F3EEFA;
  --c-on-dark-soft: #CFC4DC;
  --c-rule: #E2DAEC;
  --c-rule-dark: rgba(217, 204, 255, 0.18);
  --c-field: #7A6C86;
  --c-error: #B3123A;
  --c-halo: rgba(122, 77, 255, 0.55);
  --c-halo-soft: rgba(217, 204, 255, 0.35);

  /* Type */
  --f-display: "Unbounded", "Arial Black", Arial, sans-serif;
  --f-body: "Hanken Grotesk", system-ui, -apple-system, "Segoe UI", Arial, sans-serif;

  /* Spacing */
  --s-1: 0.25rem;
  --s-2: 0.5rem;
  --s-3: 0.75rem;
  --s-4: 1rem;
  --s-5: 1.5rem;
  --s-6: 2rem;
  --s-7: 3rem;
  --s-8: 4rem;
  --s-9: 6rem;
  --wrap: 1200px;
  --gutter: 1.25rem;

  /* Radii */
  --r-sm: 6px;
  --r-md: 14px;
  --r-lg: 28px;
  --r-pill: 999px;

  /* Shadows */
  --sh-tube: 0 0 18px 2px var(--c-halo), 0 0 44px 8px var(--c-halo-soft);
  --sh-sheet: 0 30px 60px -34px rgba(42, 24, 56, 0.55);
  --sh-lift: 0 18px 36px -22px rgba(42, 24, 56, 0.6);

  /* Motion & gradients */
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
  --tube: linear-gradient(90deg, var(--c-uv) 0%, var(--c-glow) 18%, var(--c-glow-white) 50%, var(--c-glow) 82%, var(--c-uv) 100%);
  --tan: linear-gradient(90deg, var(--c-pearl), var(--c-bronze-light) 45%, var(--c-bronze) 80%, var(--c-bronze-ink));
}

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 5rem; }

body {
  margin: 0;
  min-width: 320px;
  font-family: var(--f-body);
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--c-text);
  background: var(--c-pearl);
}

img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
h1, h2, h3 { margin: 0; font-family: var(--f-display); font-weight: 600; line-height: 1.1; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
button, input, select, textarea { font: inherit; }

:focus-visible { outline: 3px solid var(--c-glow); outline-offset: 3px; }
.surface-light :focus-visible { outline-color: var(--c-uv-ink); }

.visually-hidden {
  position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute; left: var(--s-4); top: var(--s-2); z-index: 100;
  padding: var(--s-2) var(--s-4);
  font-weight: 700; color: var(--c-plum); text-decoration: none;
  background: var(--c-glow); border-radius: var(--r-sm);
  transform: translateY(-200%);
}
.skip-link:focus { transform: none; }

.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: var(--gutter); }

/* Small glowing tube used as a recurring marker */
.tube-mark {
  display: block;
  width: 56px;
  height: 8px;
  border-radius: var(--r-pill);
  background: var(--tube);
  box-shadow: 0 0 12px 1px var(--c-halo);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 50px; padding: 0.8rem 1.5rem;
  font-family: var(--f-display); font-size: 0.9375rem; font-weight: 600; line-height: 1.2;
  text-decoration: none; border: 2px solid transparent; border-radius: var(--r-pill);
  cursor: pointer; transition: transform 0.18s var(--ease);
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(1px); }
.btn-glow { color: var(--c-plum); background: var(--c-glow); box-shadow: 0 0 22px -2px var(--c-halo); }
.btn-line { color: var(--c-on-dark); border-color: var(--c-rule-dark); background: transparent; }
.btn-plum { color: var(--c-white); background: var(--c-plum); }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  color: var(--c-on-dark);
  background: var(--c-plum-deep);
  border-bottom: 1px solid var(--c-rule-dark);
}
.header-bar { display: flex; align-items: center; justify-content: space-between; gap: var(--s-4); min-height: 4.25rem; }

.brand { display: inline-flex; align-items: center; gap: var(--s-3); text-decoration: none; }
.brand-mark { flex: none; width: 40px; height: 40px; }
.brand-name { display: flex; flex-direction: column; line-height: 1.05; }
.brand-main { font-family: var(--f-display); font-size: 1.05rem; font-weight: 700; letter-spacing: 0.01em; color: var(--c-white); }
.brand-sub { margin-top: 3px; font-size: 0.8125rem; color: var(--c-on-dark-soft); }

.burger {
  display: grid; place-items: center; width: 46px; height: 46px; padding: 0;
  color: var(--c-white); background: transparent;
  border: 1px solid var(--c-rule-dark); border-radius: var(--r-pill); cursor: pointer;
}
.burger-box { position: relative; display: block; width: 20px; height: 12px; }
.burger-box span {
  position: absolute; left: 0; width: 100%; height: 2px; border-radius: 2px;
  background: currentColor; transition: transform 0.25s var(--ease), opacity 0.2s;
}
.burger-box span:nth-child(1) { top: 0; }
.burger-box span:nth-child(2) { top: 5px; }
.burger-box span:nth-child(3) { top: 10px; }
.site-header.is-open .burger-box span:nth-child(1) { transform: translateY(5px) rotate(45deg); }
.site-header.is-open .burger-box span:nth-child(2) { opacity: 0; }
.site-header.is-open .burger-box span:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }

.site-nav {
  position: absolute; top: 100%; left: 0; right: 0;
  padding: var(--s-2) var(--gutter) var(--s-5);
  background: var(--c-plum-deep);
  border-bottom: 1px solid var(--c-rule-dark);
  opacity: 0; visibility: hidden; transform: translateY(-10px);
  transition: opacity 0.25s var(--ease), transform 0.25s var(--ease), visibility 0s linear 0.25s;
}
.site-header.is-open .site-nav { opacity: 1; visibility: visible; transform: none; transition-delay: 0s; }
.site-nav a {
  display: block; padding: 0.9rem 0;
  font-weight: 600; text-decoration: none;
  border-bottom: 1px solid var(--c-rule-dark);
}
.site-nav a:hover { color: var(--c-glow); }
.site-nav .nav-cta {
  margin-top: var(--s-4); padding: 0.8rem 1rem; text-align: center;
  color: var(--c-plum); background: var(--c-glow); border: 0; border-radius: var(--r-pill);
}
.site-nav .nav-cta:hover { color: var(--c-plum); }

/* ---------- Hero ---------- */
.hero {
  position: relative; isolation: isolate; overflow: hidden;
  padding-block: var(--s-8) var(--s-8);
  color: var(--c-on-dark);
  background: radial-gradient(ellipse at 75% 30%, var(--c-plum-soft), var(--c-plum) 55%, var(--c-plum-deep));
}

/* Sunbed tube bank (signature element) */
.tubes {
  position: absolute; z-index: -1; pointer-events: none;
  right: -35%; bottom: 4%; width: 110%;
  display: grid; gap: 18px;
  opacity: 0.4;
  transform: rotate(-8deg);
}
.tube {
  display: block; height: 14px; border-radius: var(--r-pill);
  background: var(--tube); box-shadow: var(--sh-tube);
  animation: tube-on 1.1s linear backwards;
}
.tube:nth-child(1) { animation-delay: 0.15s; }
.tube:nth-child(2) { animation-delay: 0.3s; }
.tube:nth-child(3) { animation-delay: 0.45s; }
.tube:nth-child(4) { animation-delay: 0.6s; }
.tube:nth-child(5) { animation-delay: 0.75s; }
.tube:nth-child(6) { animation-delay: 0.9s; }
.tube:nth-child(7) { animation-delay: 1.05s; }
.tube:nth-child(8) { animation-delay: 1.2s; }
.tube:nth-child(even) { margin-left: 8%; }

.hero-inner { position: relative; }
.hero-title { display: flex; flex-direction: column; }
.hero-title span {
  display: block;
  font-size: clamp(2.2rem, 11vw, 5.1rem);
  font-weight: 700;
  line-height: 1.02;
  letter-spacing: -0.015em;
  color: var(--c-white);
  animation: rise 0.8s var(--ease) backwards;
}
.hero-title span:nth-child(2) { animation-delay: 0.12s; }
.hero-title span:nth-child(3) { animation-delay: 0.24s; font-weight: 300; color: var(--c-glow); }

.hero-lead { max-width: 34rem; margin-top: var(--s-5); color: var(--c-on-dark-soft); }
.hero-actions { display: flex; flex-wrap: wrap; gap: var(--s-3); margin-top: var(--s-6); }
.hero-actions .btn { flex: 1 1 auto; }

.hero-strip {
  display: flex; flex-wrap: wrap; gap: var(--s-2);
  margin-top: var(--s-7); padding-top: var(--s-5);
  border-top: 1px solid var(--c-rule-dark);
}
.hero-strip li {
  padding: 0.35rem 0.85rem;
  font-size: 0.875rem; color: var(--c-on-dark);
  border: 1px solid var(--c-rule-dark); border-radius: var(--r-pill);
  background: rgba(42, 24, 56, 0.55);
}

/* ---------- Sections ---------- */
.section { padding-block: var(--s-8); }
.section-head { max-width: 40rem; }
.section-title { font-size: clamp(1.7rem, 5.6vw, 2.9rem); font-weight: 600; letter-spacing: -0.01em; }
.section-intro { margin-top: var(--s-4); color: var(--c-text-soft); }

/* Treatments menu */
.treatments { background: var(--c-pearl); }
.menu { display: grid; gap: var(--s-2); margin-top: var(--s-7); }
.menu-group {
  display: grid; gap: var(--s-3);
  padding-block: var(--s-5);
  border-top: 1px solid var(--c-rule);
}
.menu-group h3 { display: flex; align-items: center; gap: var(--s-3); font-size: 1.35rem; font-weight: 600; }
.menu-group h3 .tube-mark { width: 34px; height: 6px; }
.menu-group p { color: var(--c-text-soft); }
.menu-items { display: flex; flex-wrap: wrap; gap: var(--s-2); }
.menu-items li {
  padding: 0.35rem 0.85rem;
  font-size: 0.9375rem; font-weight: 600; color: var(--c-plum);
  background: var(--c-white);
  border: 1px solid var(--c-rule); border-radius: var(--r-pill);
}

/* Tanning */
.tanning { position: relative; overflow: hidden; color: var(--c-on-dark); background: var(--c-plum); isolation: isolate; }
.tanning::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 10px;
  background: var(--tan);
}
.tanning .section-title { color: var(--c-white); }
.tanning .section-intro { color: var(--c-on-dark-soft); }
.tanning-grid { display: grid; gap: var(--s-6); margin-top: var(--s-7); }

.tan-option {
  position: relative; padding: var(--s-6) var(--s-5);
  border: 1px solid var(--c-rule-dark); border-radius: var(--r-lg);
  background: linear-gradient(180deg, rgba(58, 37, 73, 0.9), rgba(30, 16, 41, 0.9));
}
.tan-option h3 { font-size: 1.4rem; color: var(--c-white); }
.tan-option p { margin-top: var(--s-3); color: var(--c-on-dark-soft); }
.tan-option .tube-mark { margin-bottom: var(--s-4); }
.tan-option-spray .tube-mark { background: var(--tan); box-shadow: 0 0 12px 1px rgba(192, 128, 63, 0.55); }

.tan-art { margin: 0; border-radius: var(--r-lg); overflow: hidden; border: 1px solid var(--c-rule-dark); }
.tan-art img { width: 100%; }

.notice {
  display: grid; gap: var(--s-2);
  margin-top: var(--s-6); padding: var(--s-5);
  border-left: 4px solid var(--c-glow);
  border-radius: 0 var(--r-md) var(--r-md) 0;
  background: rgba(217, 204, 255, 0.08);
}
.notice h3 { font-size: 1.05rem; color: var(--c-white); }
.notice p { color: var(--c-on-dark-soft); font-size: 1rem; }

/* Contact */
.contact { background: var(--c-pearl); }
.contact-grid { display: grid; gap: var(--s-7); }
.contact-lines { display: grid; gap: var(--s-4); margin-top: var(--s-6); }
.contact-line { display: grid; gap: 2px; }
.contact-line span { font-size: 0.875rem; color: var(--c-text-soft); }
.contact-line a {
  font-family: var(--f-display); font-size: 1rem; font-weight: 500;
  color: var(--c-uv-ink); overflow-wrap: anywhere;
  text-decoration-thickness: 2px; text-underline-offset: 4px;
}
.contact-help { margin-top: var(--s-6); padding-top: var(--s-5); border-top: 1px solid var(--c-rule); color: var(--c-text-soft); font-size: 1rem; }

.form-sheet {
  position: relative;
  padding: var(--s-6) var(--s-5);
  background: var(--c-white);
  border-radius: var(--r-lg);
  box-shadow: var(--sh-sheet);
}
.form-sheet::before {
  content: ""; position: absolute; top: 0; left: var(--s-5); right: var(--s-5); height: 6px;
  border-radius: 0 0 var(--r-pill) var(--r-pill);
  background: var(--tube); box-shadow: 0 0 16px 1px var(--c-halo);
}
.booking-form[hidden], .form-success[hidden], .field[hidden] { display: none; }
.form-title { font-size: 1.35rem; }
.form-grid { display: grid; gap: var(--s-4); margin-top: var(--s-5); }

.field label:not(.check) { display: block; margin-bottom: 0.35rem; font-size: 0.9375rem; font-weight: 700; }
.optional { font-weight: 400; color: var(--c-text-soft); }
.field input:not([type="checkbox"]), .field select, .field textarea {
  display: block; width: 100%; min-height: 50px; padding: 0.75rem 0.9rem;
  font-size: 1rem; color: var(--c-text); background-color: var(--c-pearl);
  border: 2px solid var(--c-field); border-radius: var(--r-sm);
}
.field select {
  appearance: none; padding-right: 2.6rem;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='9' viewBox='0 0 14 9'%3E%3Cpath d='M1 1l6 6 6-6' fill='none' stroke='%232A1838' stroke-width='2.5'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 0.95rem center;
}
.field textarea { min-height: 7.5rem; resize: vertical; }
.field input:focus-visible, .field select:focus-visible, .field textarea:focus-visible {
  border-color: var(--c-uv-ink); outline: 3px solid var(--c-glow); outline-offset: 1px;
}
.field [aria-invalid="true"] { border-color: var(--c-error); }
.error { display: block; margin-top: 0.3rem; font-size: 0.875rem; font-weight: 700; color: var(--c-error); }
.error:empty { display: none; }

.check {
  display: flex; align-items: flex-start; gap: 0.7rem;
  padding: 0.85rem 0.9rem; font-size: 0.9375rem;
  background: var(--c-pearl); border: 2px solid var(--c-rule); border-radius: var(--r-sm); cursor: pointer;
}
.check input { flex: none; width: 20px; height: 20px; margin: 2px 0 0; accent-color: var(--c-uv-ink); }
.field-age.is-shown { animation: rise-small 0.3s var(--ease); }

.submit { width: 100%; margin-top: var(--s-5); }
.form-note { margin-top: var(--s-4); font-size: 0.875rem; color: var(--c-text-soft); }
.form-note a { color: var(--c-uv-ink); }

.form-success { padding-block: var(--s-4); }
.form-success:focus { outline: none; }
.form-success.is-shown { animation: rise-small 0.4s var(--ease); }
.form-success .tube-mark { width: 88px; margin-bottom: var(--s-4); }
.form-success h3 { font-size: 1.5rem; }
.form-success p { margin-top: var(--s-3); color: var(--c-text-soft); }
.form-success .btn { margin-top: var(--s-5); }

/* ---------- Footer ---------- */
.site-footer { position: relative; padding-block: var(--s-7) var(--s-6); color: var(--c-on-dark); background: var(--c-plum-deep); }
.site-footer::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 4px; background: var(--tube); }
.footer-top { display: grid; gap: var(--s-6); }
.footer-about p { max-width: 26rem; margin-top: var(--s-3); font-size: 0.9375rem; color: var(--c-on-dark-soft); }
.footer-heading { margin-bottom: var(--s-3); font-size: 0.9375rem; font-weight: 600; color: var(--c-white); }
.footer-links { display: grid; gap: var(--s-2); font-size: 0.9375rem; }
.footer-links a { color: var(--c-on-dark-soft); text-decoration: none; overflow-wrap: anywhere; }
.footer-links a:hover { color: var(--c-glow); text-decoration: underline; }

.legal {
  margin-top: var(--s-7); padding-top: var(--s-5);
  font-size: 0.875rem; line-height: 1.7; color: var(--c-on-dark-soft);
  border-top: 1px solid var(--c-rule-dark);
}
.legal-details { display: grid; gap: 0.1rem; font-style: normal; }
.legal-details .legal-name { font-weight: 700; color: var(--c-on-dark); }
.legal a { color: var(--c-on-dark); overflow-wrap: anywhere; }
.legal-bottom { display: flex; flex-wrap: wrap; align-items: center; gap: var(--s-2) var(--s-5); margin-top: var(--s-4); }
.legal-links { display: flex; flex-wrap: wrap; gap: var(--s-4); }

/* ---------- Legal & 404 pages ---------- */
.page-hero {
  position: relative; isolation: isolate; overflow: hidden;
  padding-block: var(--s-7) var(--s-9);
  color: var(--c-on-dark);
  background: radial-gradient(ellipse at 80% 20%, var(--c-plum-soft), var(--c-plum) 60%, var(--c-plum-deep));
}
.page-hero .tubes { top: 10%; bottom: auto; opacity: 0.35; }
.page-hero h1 { font-size: clamp(2rem, 8vw, 4rem); font-weight: 700; color: var(--c-white); }
.page-meta { margin-top: var(--s-4); font-weight: 700; color: var(--c-glow); }

.doc-wrap { padding-inline: var(--gutter); }
.doc {
  position: relative; max-width: 50rem;
  margin: calc(var(--s-8) * -1) auto var(--s-8);
  padding: var(--s-6) var(--s-5);
  background: var(--c-white); border-radius: var(--r-lg); box-shadow: var(--sh-sheet);
}
.doc h2 { margin-top: var(--s-6); font-size: 1.2rem; }
.doc h2:first-child { margin-top: 0; }
.doc p, .doc ul { max-width: 68ch; margin-top: var(--s-3); }
.doc ul { padding-left: 1.25rem; list-style: disc; }
.doc li + li { margin-top: var(--s-1); }
.doc li::marker { color: var(--c-uv-ink); }
.doc a { color: var(--c-uv-ink); }

.page-hero-404 { min-height: 62vh; padding-block: var(--s-8) var(--s-9); }
.page-hero-404 .hero-lead { max-width: 32rem; }
.notfound-actions { display: flex; flex-wrap: wrap; gap: var(--s-3); margin-top: var(--s-6); }
.tube-dead { width: 120px; margin-bottom: var(--s-5); opacity: 0.35; box-shadow: none; }

/* ---------- Keyframes ---------- */
@keyframes rise { from { opacity: 0; transform: translateY(0.4em); } }
@keyframes rise-small { from { opacity: 0; transform: translateY(8px); } }
@keyframes tube-on {
  0% { opacity: 0; transform: scaleX(0.96); }
  12% { opacity: 0.8; }
  18% { opacity: 0.1; }
  30% { opacity: 0.9; }
  36% { opacity: 0.35; }
  55% { opacity: 1; transform: scaleX(1); }
  100% { opacity: 1; }
}

/* ---------- 480 ---------- */
@media (min-width: 480px) {
  :root { --gutter: 1.5rem; }
  .hero-actions .btn { flex: 0 0 auto; }
  .submit { width: auto; }
  .doc { padding: var(--s-7) var(--s-6); }
  .form-sheet { padding: var(--s-7) var(--s-6); }
}

/* ---------- 768 ---------- */
@media (min-width: 768px) {
  :root { --gutter: 2rem; }
  .section { padding-block: var(--s-9); }
  .hero { padding-block: var(--s-9); }
  .tubes { right: -20%; width: 75%; top: 12%; bottom: auto; opacity: 0.8; gap: 22px; }
  .tube { height: 16px; }

  .menu { grid-template-columns: 1fr 1fr; column-gap: var(--s-7); }
  .tanning-grid { grid-template-columns: 1fr 1fr; }
  .tan-art { grid-column: 1 / -1; }

  .form-grid { grid-template-columns: 1fr 1fr; }
  .field-full { grid-column: 1 / -1; }

  .footer-top { grid-template-columns: 1.4fr 1fr 1fr; }
}

/* ---------- 1024 ---------- */
@media (min-width: 1024px) {
  .burger { display: none; }
  .site-nav {
    position: static; padding: 0; background: none; border: 0;
    opacity: 1; visibility: visible; transform: none; transition: none;
  }
  .site-nav ul { display: flex; align-items: center; gap: var(--s-5); }
  .site-nav a { padding: 0.5rem 0; border: 0; }
  .site-nav .nav-cta { margin-top: 0; padding: 0.6rem 1.2rem; }

  .hero { min-height: 40rem; display: flex; align-items: center; }
  .hero-inner > * { max-width: 40rem; }
  .tubes { right: -10%; width: 46%; top: 50%; transform: translateY(-50%) rotate(-8deg); opacity: 1; gap: 26px; }
  .tube { height: 18px; }

  .menu { grid-template-columns: repeat(3, 1fr); }
  .tanning-grid { grid-template-columns: 1fr 1fr 1.1fr; align-items: stretch; }
  .tan-art { grid-column: auto; }

  .contact-grid { grid-template-columns: 5fr 7fr; gap: var(--s-8); align-items: start; }
  .contact-copy { position: sticky; top: 7rem; }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-delay: 0s !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    transition-delay: 0s !important;
  }
  .tube { animation: none; }
}