/* =========================================================
   Tinkerflare Lounge — single-page styles
   Palette is from the design brief.
   ========================================================= */

:root {
  --violet:   #6B4BA3;   /* Arcane Violet     — primary */
  --teal:     #2F9CA3;   /* Tinkerflare Teal  — secondary */
  --brass:    #C8A24C;   /* Lamp Brass        — ornaments */
  --magenta:  #C13585;   /* Spellfizz Magenta — sparing accent */
  --hearth:   #3A241A;   /* Hearthwood        — body text */
  --vellum:   #F2E9D0;   /* Vellum            — page ground */
  --vellum-2: #EADFC0;   /* slightly deeper vellum */
  --parchment:#F2E9D0;   /* stable parchment for "light text on violet" — does not flip in dark mode */
  --cream:    #FBF5E2;   /* light cream */
  --ink:      #2A1A12;   /* deep ink for body on cream */

  --font-display: "IM Fell DW Pica SC", "Cormorant SC", Georgia, serif;
  --font-titling: "IM Fell English", "EB Garamond", Georgia, serif;
  --font-body:    "EB Garamond", Georgia, "Times New Roman", serif;
  --font-hand:    "Caveat", "Bradley Hand", cursive;

  --maxw:        72rem;
  --maxw-narrow: 46rem;
  --gutter:      clamp(1.25rem, 4vw, 2.5rem);

  --radius: 4px;
  --shadow-soft: 0 1px 0 rgba(58,36,26,.12), 0 18px 36px -22px rgba(58,36,26,.4);

  --seal-bg: var(--vellum);
}

/* =================== Reset / base =================== */

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: clamp(1.05rem, 0.6vw + 0.95rem, 1.18rem);
  line-height: 1.65;
  color: var(--hearth);
  background: var(--vellum);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  background-image:
    radial-gradient(rgba(107,75,163,0.04) 1px, transparent 1.4px);
  background-size: 22px 22px;
}

img, svg { display: block; max-width: 100%; }
a { color: var(--violet); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover, a:focus-visible { color: var(--magenta); }

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

.skip {
  position: absolute; left: -9999px; top: auto; width: 1px; height: 1px; overflow: hidden;
}
.skip:focus { left: 1rem; top: 1rem; width: auto; height: auto; padding: .5rem 1rem; background: var(--violet); color: var(--vellum); z-index: 100; }

.container { max-width: var(--maxw); margin: 0 auto; padding-left: var(--gutter); padding-right: var(--gutter); }
.container--narrow { max-width: var(--maxw-narrow); }
.center { text-align: center; }

/* =================== Header / nav =================== */

.site-header {
  position: sticky; top: 0; z-index: 20;
  background: color-mix(in oklab, var(--vellum) 92%, transparent);
  backdrop-filter: saturate(140%) blur(6px);
  border-bottom: 1px solid color-mix(in oklab, var(--brass) 55%, transparent);
}

.topnav {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: .75rem var(--gutter);
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.topnav__brand {
  display: flex; align-items: center; gap: .65rem;
  text-decoration: none; color: var(--violet);
  flex: 0 0 auto;
}
.topnav__brand .seal { width: 38px; height: 38px; color: var(--violet); }
.topnav__brand-text { display: flex; flex-direction: column; line-height: 1; }
.topnav__brand-name {
  font-family: var(--font-display);
  font-size: 1.35rem; letter-spacing: .04em;
}
.topnav__brand-sub {
  font-family: var(--font-body); font-style: italic;
  font-size: .9rem; color: var(--hearth); margin-top: 2px;
}

.topnav__list {
  list-style: none; padding: 0; margin: 0 0 0 auto;
  display: flex; gap: 1.4rem; flex-wrap: wrap;
}
.topnav__list a {
  font-family: var(--font-titling);
  text-decoration: none; color: var(--hearth);
  font-size: 1.05rem; letter-spacing: .03em;
  padding: .25rem 0;
  border-bottom: 1px solid transparent;
  transition: border-color .2s, color .2s;
}
.topnav__list a:hover, .topnav__list a:focus-visible {
  color: var(--violet);
  border-bottom-color: var(--brass);
}

.navtoggle { position: absolute; left: -9999px; }
.navtoggle__btn { display: none; }

@media (max-width: 760px) {
  .navtoggle__btn {
    display: inline-flex; flex-direction: column; gap: 5px;
    width: 38px; height: 38px; align-items: center; justify-content: center;
    border: 1px solid color-mix(in oklab, var(--brass) 70%, transparent);
    border-radius: var(--radius);
    cursor: pointer;
    background: transparent;
  }
  .navtoggle__btn span {
    display: block; width: 20px; height: 2px; background: var(--hearth);
    transition: transform .25s, opacity .2s;
  }
  /* Theme toggle pushes itself + the hamburger to the right edge */
  .theme-toggle { margin-left: auto; }
  /* The menu list wraps to row two via order, then expands when checked */
  .topnav__list {
    order: 99;
    flex-basis: 100%;
    flex-direction: column; gap: 0;
    margin: 0;
    max-height: 0; overflow: hidden;
    transition: max-height .3s ease;
  }
  .topnav__list a {
    display: block;
    padding: .85rem .25rem;
    border-bottom: 1px dashed color-mix(in oklab, var(--brass) 50%, transparent);
  }
  .navtoggle:checked ~ .topnav__list { max-height: 60vh; padding-top: .5rem; }
  .navtoggle:checked ~ .navtoggle__btn span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .navtoggle:checked ~ .navtoggle__btn span:nth-child(2) { opacity: 0; }
  .navtoggle:checked ~ .navtoggle__btn span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
}

/* =================== Hero =================== */

.hero {
  position: relative;
  background:
    radial-gradient(ellipse 65% 60% at 50% 32%, color-mix(in oklab, var(--violet) 30%, transparent) 0%, transparent 65%),
    linear-gradient(180deg, var(--vellum) 0%, var(--vellum-2) 100%);
  padding: clamp(3rem, 8vw, 6rem) var(--gutter) clamp(3rem, 8vw, 5rem);
  text-align: center;
  overflow: hidden;
  border-bottom: 1px solid color-mix(in oklab, var(--brass) 55%, transparent);
}

.hero__inner {
  max-width: 60rem; margin: 0 auto;
  position: relative; z-index: 2;
}

.hero__eyebrow {
  font-family: var(--font-titling);
  font-style: italic;
  letter-spacing: .12em;
  font-size: .95rem;
  color: color-mix(in oklab, var(--hearth) 75%, transparent);
  display: flex; align-items: center; justify-content: center; gap: 1rem;
  margin: 0 0 1.5rem;
  text-transform: lowercase;
}

.rule {
  display: inline-block; height: 1px; flex: 1 1 auto; max-width: 6rem;
  background: var(--brass);
  opacity: .9;
}
.rule--brass { background: var(--brass); }

.wordmark {
  font-family: var(--font-display);
  margin: 0;
  color: var(--violet);
  line-height: .92;
  text-rendering: geometricPrecision;
}
.wordmark__top {
  display: block;
  font-size: clamp(2.6rem, 9vw, 6rem);
  letter-spacing: .03em;
}
.wordmark__amp {
  display: block;
  width: min(80%, 24rem);
  margin: .35rem auto;
  color: var(--brass);
}
.wordmark__amp svg { width: 100%; height: 14px; }
.wordmark__bottom {
  display: block;
  font-family: var(--font-titling);
  font-style: italic;
  font-size: clamp(1.4rem, 4vw, 2.4rem);
  letter-spacing: .35em;
  text-transform: uppercase;
  color: var(--hearth);
  font-weight: 400;
}

.hero__tagline {
  font-family: var(--font-hand);
  font-size: clamp(1.45rem, 3vw, 2.1rem);
  color: var(--magenta);
  margin: 1.4rem auto .25rem;
  transform: rotate(-1.2deg);
  max-width: 32ch;
}

.hero__meta {
  list-style: none; padding: 0; margin: 1.6rem 0 1.8rem;
  display: flex; flex-wrap: wrap; justify-content: center; gap: .55rem 1rem;
  font-family: var(--font-titling);
  letter-spacing: .25em; text-transform: uppercase;
  font-size: .82rem;
  color: var(--teal);
}
.hero__meta li[aria-hidden="true"] { color: var(--brass); }

.hero__cta { display: flex; flex-wrap: wrap; gap: .85rem; justify-content: center; margin: 0; }

.btn {
  display: inline-block;
  font-family: var(--font-titling);
  font-size: 1.02rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  padding: .85rem 1.6rem;
  border-radius: var(--radius);
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .15s ease, background .2s, color .2s, border-color .2s, box-shadow .2s;
  background: transparent;
}
.btn--primary {
  background: var(--violet); color: var(--vellum);
  border-color: var(--violet);
  box-shadow: 0 1px 0 rgba(58,36,26,.18);
}
.btn--primary:hover, .btn--primary:focus-visible {
  background: color-mix(in oklab, var(--violet) 88%, black);
  color: var(--vellum);
  transform: translateY(-1px);
}
.btn--ghost {
  color: var(--hearth);
  border-color: var(--hearth);
}
.btn--ghost:hover, .btn--ghost:focus-visible {
  background: var(--hearth); color: var(--vellum);
}

/* sparks */
.hero__sparks { position: absolute; inset: 0; pointer-events: none; z-index: 1; }
.spark {
  position: absolute; width: 6px; height: 6px; border-radius: 50%;
  background: var(--brass);
  filter: blur(.3px);
  opacity: .55;
  animation: spark 6s ease-in-out infinite;
}
.spark--1 { top: 18%; left: 12%; animation-delay: 0s;   background: var(--magenta); }
.spark--2 { top: 70%; left: 20%; animation-delay: 1.2s; }
.spark--3 { top: 28%; right: 10%; animation-delay: 2.1s; background: var(--teal); }
.spark--4 { top: 62%; right: 16%; animation-delay: 3.4s; }

@keyframes spark {
  0%, 100% { transform: translateY(0) scale(1);   opacity: .25; }
  50%      { transform: translateY(-14px) scale(1.4); opacity: .9; }
}
@media (prefers-reduced-motion: reduce) {
  .spark { animation: none; opacity: .55; }
  html { scroll-behavior: auto; }
}

/* =================== Sections =================== */

.section {
  padding: clamp(3.5rem, 7vw, 6rem) 0;
  position: relative;
}

.section--cream  { background: var(--cream); color: var(--ink); }
.section--vellum { background: var(--vellum); color: var(--hearth); }
.section--violet {
  background:
    radial-gradient(ellipse at 50% 0%, color-mix(in oklab, var(--magenta) 22%, transparent), transparent 55%),
    linear-gradient(180deg, var(--violet) 0%, color-mix(in oklab, var(--violet) 80%, var(--hearth)) 100%);
  color: var(--vellum);
}
.section--violet a { color: var(--brass); }

.section + .section { border-top: 1px solid color-mix(in oklab, var(--brass) 35%, transparent); }

.kicker {
  font-family: var(--font-titling);
  font-style: italic;
  letter-spacing: .15em;
  text-transform: lowercase;
  text-align: center;
  font-size: .95rem;
  color: var(--teal);
  margin: 0 0 1rem;
  display: flex; align-items: center; justify-content: center; gap: 1rem;
}
.kicker--light { color: color-mix(in oklab, var(--brass) 95%, white); }
.kicker .rule { max-width: 4rem; }

.display {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 4.2vw, 3.1rem);
  line-height: 1.05;
  letter-spacing: .01em;
  color: var(--violet);
  margin: 0 0 1.4rem;
}
.display--center { text-align: center; }
.display--light { color: var(--parchment); }

.lede {
  font-size: 1.18rem;
  line-height: 1.7;
  font-style: italic;
  color: color-mix(in oklab, var(--hearth) 92%, transparent);
  margin: 0 0 1.5rem;
}
.lede--light { color: color-mix(in oklab, var(--parchment) 92%, transparent); }

.signature {
  font-family: var(--font-hand);
  font-size: 2rem; color: var(--magenta);
  margin: 2rem 0 0; transform: rotate(-1.5deg);
}

/* =================== Programme cards =================== */

.programme {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
  gap: 1.25rem;
  margin-top: 2.5rem;
}

.programme__card {
  background: var(--cream);
  border: 1px solid color-mix(in oklab, var(--brass) 60%, transparent);
  border-radius: var(--radius);
  padding: 1.4rem 1.4rem 1.5rem;
  position: relative;
  box-shadow: var(--shadow-soft);
  transition: transform .2s, box-shadow .2s;
}
.programme__card::before {
  content: ""; position: absolute; left: 1.4rem; right: 1.4rem; top: 4.4rem;
  height: 1px; background: var(--brass); opacity: .55;
}
.programme__card:hover { transform: translateY(-3px); box-shadow: 0 1px 0 rgba(58,36,26,.18), 0 24px 40px -22px rgba(58,36,26,.45); }

.programme__date {
  display: flex; align-items: baseline; gap: .65rem;
  font-family: var(--font-titling);
  text-transform: uppercase; letter-spacing: .2em;
  margin: 0 0 1rem; font-size: .82rem; color: var(--teal);
}
.programme__date strong {
  font-style: normal; font-weight: 600;
  font-size: 1rem; color: var(--magenta); letter-spacing: .08em;
}

.programme__title {
  font-family: var(--font-display);
  font-size: 1.4rem;
  margin: 0 0 .5rem;
  color: var(--violet);
  line-height: 1.15;
}
.programme__title em {
  font-family: var(--font-titling); font-style: italic;
  color: var(--hearth); font-weight: 400;
}

.programme__meta {
  margin: .9rem 0 0;
  font-family: var(--font-titling);
  font-style: italic;
  font-size: .92rem;
  color: color-mix(in oklab, var(--hearth) 70%, transparent);
}

/* =================== Arcade =================== */

.arcade__lede { margin: 0 auto 2.5rem; max-width: 50rem; }

.arcade {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 1.25rem;
}

.arcade__card {
  background: var(--vellum);
  border: 1px solid color-mix(in oklab, var(--brass) 60%, transparent);
  border-radius: var(--radius);
  padding: 1.6rem 1.4rem 1.5rem;
  text-align: center;
  box-shadow: var(--shadow-soft);
  transition: transform .2s, box-shadow .2s;
  position: relative;
  /* Used by inline SVGs to "punch through" the ball graphic */
  --card-bg: var(--vellum);
}
.arcade__card::before, .arcade__card::after {
  content: ""; position: absolute; left: 1rem; right: 1rem;
  height: 1px; background: var(--brass); opacity: .55;
}
.arcade__card::before { top: .5rem; }
.arcade__card::after  { bottom: .5rem; }
.arcade__card:hover { transform: translateY(-3px); box-shadow: 0 1px 0 rgba(58,36,26,.18), 0 24px 40px -22px rgba(58,36,26,.45); }

.arcade__icon {
  width: 56px; height: 56px;
  margin: 0 auto .9rem;
  color: var(--violet);
}
.arcade__icon svg { width: 100%; height: 100%; display: block; }

.arcade__title {
  font-family: var(--font-display);
  font-size: 1.3rem;
  color: var(--violet);
  margin: 0 0 .55rem;
  letter-spacing: .02em;
  line-height: 1.15;
}

.arcade__card p {
  margin: 0 0 .5rem;
  font-size: 1rem;
  line-height: 1.55;
}

.arcade__meta {
  font-family: var(--font-titling);
  font-style: italic;
  font-size: .92rem;
  color: var(--teal);
  margin-top: .9rem !important;
}

/* =================== Menu =================== */

.menu {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  margin-top: 2.5rem;
}
@media (min-width: 720px) {
  .menu { grid-template-columns: 1fr 1fr; gap: 3rem; }
}

.menu__heading {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--brass);
  letter-spacing: .04em;
  text-align: center;
  margin: 0 0 1.25rem;
  position: relative;
  padding-bottom: .75rem;
}
.menu__heading::after {
  content: "✦";
  position: absolute; left: 0; right: 0; bottom: -.4rem;
  font-size: .8rem; color: var(--brass);
}

.menu__list { margin: 0; }
.menu__list > div {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: baseline;
  gap: .85rem;
  margin: 0 0 .85rem;
  position: relative;
}
.menu__list dt {
  font-family: var(--font-titling);
  font-size: 1.08rem;
  font-style: italic;
  color: var(--parchment);
  position: relative;
  overflow: hidden;
}
.menu__list dt::after {
  content: " . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .";
  color: color-mix(in oklab, var(--brass) 75%, transparent);
  letter-spacing: 2px;
  margin-left: .4rem;
}
.menu__list dd {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.05rem;
  color: var(--brass);
  background: var(--violet); /* sit over the dotted leader */
  padding-left: .35rem;
  z-index: 1;
}

.footnote {
  font-family: var(--font-titling);
  font-style: italic;
  font-size: .92rem;
  text-align: center;
  margin: 2.5rem auto 0;
  max-width: 42rem;
  color: color-mix(in oklab, var(--hearth) 70%, transparent);
}
.footnote--light { color: color-mix(in oklab, var(--parchment) 80%, transparent); }

/* =================== Library / split layout =================== */

.split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: start;
}
@media (min-width: 880px) {
  .split { grid-template-columns: 1.15fr 1fr; gap: 4rem; }
}

.checks {
  list-style: none; padding: 0; margin: 1.2rem 0 0;
}
.checks li {
  position: relative; padding-left: 1.4rem; margin-bottom: .5rem;
  font-family: var(--font-titling); font-size: 1.05rem;
}
.checks li::before {
  content: "✦"; position: absolute; left: 0; top: 0;
  color: var(--brass);
}

/* Bookplate card */
.bookplate {
  background: var(--vellum);
  border: 1px solid var(--brass);
  outline: 1px solid var(--brass);
  outline-offset: 6px;
  padding: 2rem 1.6rem 1.8rem;
  text-align: center;
  position: relative;
  box-shadow: var(--shadow-soft);
  border-radius: 2px;
}
.bookplate::before, .bookplate::after {
  content: ""; position: absolute; left: 1rem; right: 1rem;
  height: 1px; background: var(--brass); opacity: .8;
}
.bookplate::before { top: .55rem; }
.bookplate::after  { bottom: .55rem; }

.bookplate__top {
  font-family: var(--font-display);
  letter-spacing: .35em;
  text-transform: uppercase;
  color: var(--brass);
  margin: 0 0 .5rem;
  font-size: 1.05rem;
}
.bookplate__seal {
  margin: .5rem auto 1rem;
  width: 110px; height: 110px;
  color: var(--violet);
}
.bookplate__seal .seal { width: 100%; height: 100%; }

.bookplate__name {
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: var(--violet);
  letter-spacing: .04em;
  margin: 0 0 .9rem;
}
.bookplate__line {
  font-family: var(--font-titling);
  font-style: italic;
  font-size: 1rem;
  color: var(--hearth);
  margin: 0 0 1rem;
}
.bookplate__sig {
  font-family: var(--font-hand);
  font-size: 1.5rem;
  color: var(--magenta);
  margin: 0; transform: rotate(-1deg);
}

/* =================== Visit =================== */

.visit-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  margin-top: 2rem;
}
@media (min-width: 760px) {
  .visit-grid { grid-template-columns: 1fr 1.2fr; gap: 3rem; }
}

.subhead {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--violet);
  letter-spacing: .04em;
  margin: 0 0 .8rem;
  padding-bottom: .35rem;
  border-bottom: 1px solid color-mix(in oklab, var(--brass) 70%, transparent);
}

.hours {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 1.8rem;
}
.hours th, .hours td {
  text-align: left; padding: .45rem .25rem;
  font-family: var(--font-titling);
  border-bottom: 1px dotted color-mix(in oklab, var(--brass) 55%, transparent);
}
.hours th { color: var(--teal); font-weight: 600; letter-spacing: .04em; width: 9rem; }
.hours td { color: var(--hearth); font-style: italic; }

.address {
  font-family: var(--font-titling); font-style: italic;
  line-height: 1.7;
}

/* =================== Form =================== */

.form { margin-top: .25rem; }
.form__row { margin: 0 0 1.1rem; display: flex; flex-direction: column; }
.form__row label {
  font-family: var(--font-titling);
  letter-spacing: .12em; text-transform: uppercase;
  font-size: .82rem; color: var(--teal);
  margin-bottom: .35rem;
}
.form__row input,
.form__row textarea {
  font: inherit;
  font-family: var(--font-body);
  color: var(--hearth);
  background: var(--cream);
  border: 1px solid color-mix(in oklab, var(--brass) 65%, transparent);
  border-radius: var(--radius);
  padding: .7rem .85rem;
  width: 100%;
  resize: vertical;
}
.form__row input:focus,
.form__row textarea:focus {
  outline: none;
  border-color: var(--violet);
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--violet) 25%, transparent);
}
.form__hint {
  font-family: var(--font-titling); font-style: italic;
  font-size: .88rem; color: color-mix(in oklab, var(--hearth) 65%, transparent);
  margin-top: .35rem;
}
.form__actions { margin-top: .25rem; }
.form__hp { position: absolute; left: -9999px; height: 0; overflow: hidden; }

.notice {
  border: 1px solid;
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
  margin: 0 0 1.4rem;
  font-family: var(--font-titling);
}
.notice ul { margin: .5rem 0 0; padding-left: 1.2rem; }
.notice--ok {
  background: color-mix(in oklab, var(--teal) 14%, var(--cream));
  border-color: var(--teal); color: color-mix(in oklab, var(--teal) 65%, var(--hearth));
}
.notice--err {
  background: color-mix(in oklab, var(--magenta) 12%, var(--cream));
  border-color: var(--magenta); color: color-mix(in oklab, var(--magenta) 70%, var(--hearth));
}

/* =================== Footer =================== */

.site-footer {
  background: var(--hearth);
  color: var(--vellum);
  padding: 3.5rem 0 2.5rem;
  text-align: center;
}
.site-footer a { color: var(--brass); }

.footer-seal {
  width: 78px; height: 78px;
  margin: 0 auto 1.1rem;
  color: var(--brass);
  --seal-bg: var(--hearth);
}

.footer-tag {
  font-family: var(--font-hand);
  font-size: 1.5rem;
  color: var(--brass);
  margin: 0 0 1rem;
  transform: rotate(-1deg);
}
.footer-meta {
  font-family: var(--font-titling); font-style: italic;
  margin: 0 0 .25rem;
}
.footer-fine {
  font-family: var(--font-titling);
  letter-spacing: .12em; text-transform: uppercase;
  font-size: .78rem; color: color-mix(in oklab, var(--vellum) 60%, transparent);
  margin: 1.2rem 0 0;
}

/* =================== Tiny print niceties =================== */

@media print {
  .site-header, .hero__sparks, .form, .btn { display: none !important; }
  body { background: white; color: black; }
  .section { page-break-inside: avoid; }
}

/* =========================================================
   Dark mode — "Vellum mark on Arcane Violet field"
   The brief's preferred avatar treatment, applied site-wide.
   ========================================================= */

/* Dark mode is keyed off [data-theme="dark"] on the <html> element.
   An inline head script resolves the user's preference (auto/light/dark)
   plus OS state into a concrete value before first paint. */

[data-theme="dark"] {
  /* Brand hues shifted lighter so they read on a dark ground */
  --violet:   #B79CE6;
  --teal:     #62C9D0;
  --brass:    #E0BE6B;
  --magenta:  #E573B6;

  /* Grounds: deep arcane-violet rising from near-hearthwood */
  --vellum:   #1A0F2A;
  --vellum-2: #120821;
  --cream:    #241645;        /* lifted panel ground */
  --panel-deep: #20133E;       /* solid mid-tone for menu */

  /* Inks become vellum on dark */
  --hearth:   #F2E9D0;
  --ink:      #F2E9D0;

  --seal-bg:  #1A0F2A;

  --shadow-soft: 0 1px 0 rgba(0,0,0,.4), 0 24px 40px -22px rgba(0,0,0,.7);
}

[data-theme="dark"] body {
  background-image: radial-gradient(rgba(224,190,107,0.05) 1px, transparent 1.4px);
}

[data-theme="dark"] .site-header {
  background: color-mix(in oklab, var(--vellum) 88%, transparent);
  border-bottom-color: color-mix(in oklab, var(--brass) 35%, transparent);
}
[data-theme="dark"] .topnav__brand-sub { color: var(--hearth); opacity: .8; }
[data-theme="dark"] .topnav__list a { color: var(--hearth); }
[data-theme="dark"] .topnav__list a:hover,
[data-theme="dark"] .topnav__list a:focus-visible { color: var(--brass); }
[data-theme="dark"] .navtoggle__btn span { background: var(--hearth); }

[data-theme="dark"] .hero {
  background:
    radial-gradient(ellipse at 50% 35%, rgba(224,190,107,.18) 0%, transparent 60%),
    linear-gradient(180deg, var(--vellum) 0%, var(--vellum-2) 100%);
  border-bottom-color: color-mix(in oklab, var(--brass) 35%, transparent);
}
[data-theme="dark"] .wordmark { color: var(--violet); }
[data-theme="dark"] .wordmark__bottom { color: var(--hearth); }

[data-theme="dark"] .btn--primary {
  background: var(--violet); color: var(--vellum);
  border-color: var(--violet);
}
[data-theme="dark"] .btn--primary:hover,
[data-theme="dark"] .btn--primary:focus-visible {
  background: color-mix(in oklab, var(--violet) 80%, white);
}
[data-theme="dark"] .btn--ghost { color: var(--hearth); border-color: var(--hearth); }
[data-theme="dark"] .btn--ghost:hover,
[data-theme="dark"] .btn--ghost:focus-visible {
  background: var(--hearth); color: var(--vellum);
}

[data-theme="dark"] .section--cream  { background: var(--cream);  color: var(--hearth); }
[data-theme="dark"] .section--vellum { background: var(--vellum); color: var(--hearth); }

[data-theme="dark"] .section--violet {
  background:
    radial-gradient(ellipse at 50% 0%, rgba(229,115,182,.16), transparent 55%),
    var(--panel-deep);
  color: var(--hearth);
}
[data-theme="dark"] .section--violet a { color: var(--brass); }
[data-theme="dark"] .menu__list dd { background: var(--panel-deep); color: var(--brass); }

[data-theme="dark"] .programme__card {
  background: color-mix(in oklab, var(--cream) 92%, white);
  border-color: color-mix(in oklab, var(--brass) 55%, transparent);
}
[data-theme="dark"] .programme__title { color: var(--violet); }
[data-theme="dark"] .programme__title em { color: var(--hearth); opacity: .85; }
[data-theme="dark"] .programme__meta { color: color-mix(in oklab, var(--hearth) 70%, transparent); }

[data-theme="dark"] .arcade__card {
  background: color-mix(in oklab, var(--cream) 92%, white);
  border-color: color-mix(in oklab, var(--brass) 55%, transparent);
  --card-bg: color-mix(in oklab, var(--cream) 92%, white);
}
[data-theme="dark"] .arcade__title { color: var(--violet); }
[data-theme="dark"] .arcade__icon { color: var(--violet); }
[data-theme="dark"] .arcade__meta { color: var(--teal); }

[data-theme="dark"] .bookplate {
  background: var(--cream);
  border-color: var(--brass);
  outline-color: var(--brass);
}
[data-theme="dark"] .bookplate__name { color: var(--violet); }
[data-theme="dark"] .bookplate__line { color: var(--hearth); opacity: .92; }

[data-theme="dark"] .subhead {
  color: var(--violet);
  border-bottom-color: color-mix(in oklab, var(--brass) 55%, transparent);
}
[data-theme="dark"] .hours th { color: var(--teal); }
[data-theme="dark"] .hours td { color: var(--hearth); }
[data-theme="dark"] .hours th,
[data-theme="dark"] .hours td { border-bottom-color: color-mix(in oklab, var(--brass) 35%, transparent); }

[data-theme="dark"] .form__row input,
[data-theme="dark"] .form__row textarea {
  background: color-mix(in oklab, var(--cream) 88%, black);
  color: var(--hearth);
  border-color: color-mix(in oklab, var(--brass) 45%, transparent);
}
[data-theme="dark"] .form__row input::placeholder,
[data-theme="dark"] .form__row textarea::placeholder {
  color: color-mix(in oklab, var(--hearth) 50%, transparent);
}
[data-theme="dark"] .form__row input:focus,
[data-theme="dark"] .form__row textarea:focus {
  border-color: var(--violet);
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--violet) 35%, transparent);
}

[data-theme="dark"] .notice--ok {
  background: color-mix(in oklab, var(--teal) 18%, var(--cream));
  border-color: var(--teal);
  color: var(--hearth);
}
[data-theme="dark"] .notice--err {
  background: color-mix(in oklab, var(--magenta) 18%, var(--cream));
  border-color: var(--magenta);
  color: var(--hearth);
}

[data-theme="dark"] .site-footer {
  background: #110720;
  color: var(--hearth);
}
[data-theme="dark"] .footer-seal { color: var(--brass); --seal-bg: #110720; }

[data-theme="dark"] .spark { opacity: .7; }

/* ---------------------------------------------------------
   No-JS fallback: when the inline head script can't run (JS
   disabled, blocked, or failed), <html> won't have a
   data-theme attribute. In that case, honor the OS via a
   media query. The :not([data-theme]) guard ensures these
   rules cleanly defer to the explicit override otherwise.
   --------------------------------------------------------- */

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --violet:   #B79CE6;
    --teal:     #62C9D0;
    --brass:    #E0BE6B;
    --magenta:  #E573B6;

    --vellum:   #1A0F2A;
    --vellum-2: #120821;
    --cream:    #241645;
    --panel-deep: #20133E;

    --hearth:   #F2E9D0;
    --ink:      #F2E9D0;

    --seal-bg:  #1A0F2A;

    --shadow-soft: 0 1px 0 rgba(0,0,0,.4), 0 24px 40px -22px rgba(0,0,0,.7);
  }

  :root:not([data-theme]) body {
    background-image: radial-gradient(rgba(224,190,107,0.05) 1px, transparent 1.4px);
  }

  :root:not([data-theme]) .site-header {
    background: color-mix(in oklab, var(--vellum) 88%, transparent);
    border-bottom-color: color-mix(in oklab, var(--brass) 35%, transparent);
  }
  :root:not([data-theme]) .topnav__brand-sub { color: var(--hearth); opacity: .8; }
  :root:not([data-theme]) .topnav__list a { color: var(--hearth); }
  :root:not([data-theme]) .topnav__list a:hover,
  :root:not([data-theme]) .topnav__list a:focus-visible { color: var(--brass); }
  :root:not([data-theme]) .navtoggle__btn span { background: var(--hearth); }

  :root:not([data-theme]) .hero {
    background:
      radial-gradient(ellipse at 50% 35%, rgba(224,190,107,.18) 0%, transparent 60%),
      linear-gradient(180deg, var(--vellum) 0%, var(--vellum-2) 100%);
    border-bottom-color: color-mix(in oklab, var(--brass) 35%, transparent);
  }
  :root:not([data-theme]) .wordmark { color: var(--violet); }
  :root:not([data-theme]) .wordmark__bottom { color: var(--hearth); }

  :root:not([data-theme]) .btn--primary {
    background: var(--violet); color: var(--vellum);
    border-color: var(--violet);
  }
  :root:not([data-theme]) .btn--primary:hover,
  :root:not([data-theme]) .btn--primary:focus-visible {
    background: color-mix(in oklab, var(--violet) 80%, white);
  }
  :root:not([data-theme]) .btn--ghost { color: var(--hearth); border-color: var(--hearth); }
  :root:not([data-theme]) .btn--ghost:hover,
  :root:not([data-theme]) .btn--ghost:focus-visible {
    background: var(--hearth); color: var(--vellum);
  }

  :root:not([data-theme]) .section--cream  { background: var(--cream);  color: var(--hearth); }
  :root:not([data-theme]) .section--vellum { background: var(--vellum); color: var(--hearth); }

  :root:not([data-theme]) .section--violet {
    background:
      radial-gradient(ellipse at 50% 0%, rgba(229,115,182,.16), transparent 55%),
      var(--panel-deep);
    color: var(--hearth);
  }
  :root:not([data-theme]) .section--violet a { color: var(--brass); }
  :root:not([data-theme]) .menu__list dd { background: var(--panel-deep); color: var(--brass); }

  :root:not([data-theme]) .programme__card {
    background: color-mix(in oklab, var(--cream) 92%, white);
    border-color: color-mix(in oklab, var(--brass) 55%, transparent);
  }
  :root:not([data-theme]) .programme__title { color: var(--violet); }
  :root:not([data-theme]) .programme__title em { color: var(--hearth); opacity: .85; }
  :root:not([data-theme]) .programme__meta { color: color-mix(in oklab, var(--hearth) 70%, transparent); }

  :root:not([data-theme]) .arcade__card {
    background: color-mix(in oklab, var(--cream) 92%, white);
    border-color: color-mix(in oklab, var(--brass) 55%, transparent);
    --card-bg: color-mix(in oklab, var(--cream) 92%, white);
  }
  :root:not([data-theme]) .arcade__title { color: var(--violet); }
  :root:not([data-theme]) .arcade__icon { color: var(--violet); }
  :root:not([data-theme]) .arcade__meta { color: var(--teal); }

  :root:not([data-theme]) .bookplate {
    background: var(--cream);
    border-color: var(--brass);
    outline-color: var(--brass);
  }
  :root:not([data-theme]) .bookplate__name { color: var(--violet); }
  :root:not([data-theme]) .bookplate__line { color: var(--hearth); opacity: .92; }

  :root:not([data-theme]) .subhead {
    color: var(--violet);
    border-bottom-color: color-mix(in oklab, var(--brass) 55%, transparent);
  }
  :root:not([data-theme]) .hours th { color: var(--teal); }
  :root:not([data-theme]) .hours td { color: var(--hearth); }
  :root:not([data-theme]) .hours th,
  :root:not([data-theme]) .hours td { border-bottom-color: color-mix(in oklab, var(--brass) 35%, transparent); }

  :root:not([data-theme]) .form__row input,
  :root:not([data-theme]) .form__row textarea {
    background: color-mix(in oklab, var(--cream) 88%, black);
    color: var(--hearth);
    border-color: color-mix(in oklab, var(--brass) 45%, transparent);
  }
  :root:not([data-theme]) .form__row input::placeholder,
  :root:not([data-theme]) .form__row textarea::placeholder {
    color: color-mix(in oklab, var(--hearth) 50%, transparent);
  }
  :root:not([data-theme]) .form__row input:focus,
  :root:not([data-theme]) .form__row textarea:focus {
    border-color: var(--violet);
    box-shadow: 0 0 0 3px color-mix(in oklab, var(--violet) 35%, transparent);
  }

  :root:not([data-theme]) .notice--ok {
    background: color-mix(in oklab, var(--teal) 18%, var(--cream));
    border-color: var(--teal);
    color: var(--hearth);
  }
  :root:not([data-theme]) .notice--err {
    background: color-mix(in oklab, var(--magenta) 18%, var(--cream));
    border-color: var(--magenta);
    color: var(--hearth);
  }

  :root:not([data-theme]) .site-footer {
    background: #110720;
    color: var(--hearth);
  }
  :root:not([data-theme]) .footer-seal { color: var(--brass); --seal-bg: #110720; }

  :root:not([data-theme]) .spark { opacity: .7; }
}

/* =========================================================
   Theme toggle (the dropdown in the topnav)
   ========================================================= */

.theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  padding: .2rem .35rem .2rem .55rem;
  border: 1px solid color-mix(in oklab, var(--brass) 65%, transparent);
  border-radius: var(--radius);
  background: color-mix(in oklab, var(--brass) 8%, transparent);
  flex: 0 0 auto;
  position: relative;
}

.theme-toggle__icon {
  width: 16px; height: 16px;
  color: var(--brass);
  flex: 0 0 16px;
}

.theme-toggle__select {
  appearance: none;
  -webkit-appearance: none;
  background: transparent;
  color: var(--hearth);
  font-family: var(--font-titling);
  font-style: italic;
  font-size: .92rem;
  letter-spacing: .04em;
  border: 0;
  padding: .25rem 1.2rem .25rem .25rem;
  margin: 0;
  cursor: pointer;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--brass) 50%),
    linear-gradient(-45deg, transparent 50%, var(--brass) 50%);
  background-position:
    right .55rem center,
    right .25rem center;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
  line-height: 1.1;
}
.theme-toggle__select:focus-visible {
  outline: 2px solid var(--violet);
  outline-offset: 2px;
  border-radius: 2px;
}
/* The native dropdown menu can't be themed, but we ensure the option
   text is legible against whatever the OS chooses to paint. */
.theme-toggle__select option {
  color: #1a0f2a;
  background: #f2e9d0;
}

@media (max-width: 760px) {
  .theme-toggle { padding: .15rem .3rem .15rem .45rem; }
  .theme-toggle__select { font-size: .85rem; padding-right: 1rem; }
}