/*
  EnsouWorks — Components.
  Composed only from tokens. No raw colour or size values below this line.
*/

/* ---- Buttons ----------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--s-3);
  padding: 0.72em 1.35em;
  border: 1px solid transparent;
  border-radius: var(--r-sm);
  font-family: var(--f-body);
  font-size: var(--t-sm);
  font-weight: 500;
  letter-spacing: 0.01em;
  text-decoration: none;
  cursor: pointer;
  background: none;
  transition: background-color var(--d-fast) var(--ease-sand),
    border-color var(--d-fast) var(--ease-sand),
    color var(--d-fast) var(--ease-sand),
    transform var(--d-fast) var(--ease-sand);
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

.btn__arrow {
  transition: transform var(--d-base) var(--ease-sand);
}

.btn:hover .btn__arrow {
  transform: translateX(3px);
}

.btn--primary {
  background-color: var(--c-ink);
  border-color: var(--c-ink);
  color: var(--c-ground);
}

.btn--primary:hover {
  background-color: var(--c-accent);
  border-color: var(--c-accent);
  color: var(--c-ground);
}

.btn--secondary {
  border-color: var(--c-line);
  color: var(--c-ink);
}

.btn--secondary:hover {
  border-color: var(--c-accent);
  color: var(--c-accent);
}

.btn--ghost {
  padding-inline: 0;
  color: var(--c-ink);
  text-decoration: none;
  border-bottom: 1px solid var(--c-line);
  border-radius: 0;
}

.btn--ghost:hover {
  color: var(--c-accent);
  border-bottom-color: var(--c-accent);
  transform: none;
}

/* ---- Rules ------------------------------------------------------------- */

.rule {
  height: 1px;
  border: 0;
  background-color: var(--c-line-soft);
  width: 100%;
}

/* ---- Plate --------------------------------------------------------------
   The surface primitive: a section of sand, cut square and lit from above. */

.plate {
  position: relative;
  background-color: var(--c-ground-raised);
  border: 1px solid var(--c-line-soft);
  border-radius: var(--r-sm);
  padding: var(--s-6);
}

.plate--sunk {
  background-color: var(--c-ground-sunk);
}

/* ---- Eyebrow ------------------------------------------------------------ */

.eyebrow {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  font-family: var(--f-mono);
  font-size: var(--t-xs);
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
  color: var(--c-ink-mute);
}

.eyebrow::after {
  content: "";
  flex: 1;
  height: 1px;
  background-color: var(--c-line-soft);
}

.eyebrow--tight::after {
  display: none;
}

/* ---- Brand mark ---------------------------------------------------------- */

.mark {
  display: inline-flex;
  align-items: center;
  gap: var(--s-3);
  text-decoration: none;
  color: var(--c-ink);
}

.mark:hover {
  color: var(--c-ink);
}

.mark__glyph {
  width: 1.65rem;
  height: 1.65rem;
  flex: none;
  overflow: visible;
}

.mark__ring {
  fill: none;
  stroke: currentColor;
  stroke-width: 5;
  stroke-linecap: round;
  transition: stroke-dashoffset var(--d-slow) var(--ease-out);
}

.mark:hover .mark__ring {
  stroke: var(--c-accent);
}

.mark__word {
  font-family: var(--f-display);
  font-size: 1.0625rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.mark__word em {
  font-style: normal;
  color: var(--c-ink-mute);
  font-weight: 400;
}

/* ---- Navigation ---------------------------------------------------------- */

.site-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: color-mix(in srgb, var(--c-ground) 86%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--d-base) var(--ease-sand);
}

.site-nav.is-stuck {
  border-bottom-color: var(--c-line-soft);
}

.site-nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-5);
  min-height: 4.5rem;
}

.site-nav__links {
  display: flex;
  /* Baseline, so the single-line items sit on the same line as the practice
     names rather than centring against their two-line height. */
  align-items: baseline;
  gap: clamp(var(--s-4), 2.2vw, var(--s-6));
  list-style: none;
  padding: 0;
}

.site-nav__link {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  font-size: var(--t-sm);
  text-decoration: none;
  color: var(--c-ink-soft);
  position: relative;
  padding-block: var(--s-2);
}

/* The plain term leads, because that is what a stranger and a search engine
   both read first. The name follows underneath, still present, no longer
   carrying the whole job of explaining itself. */
.site-nav__what {
  line-height: 1.2;
  white-space: nowrap;
}

.site-nav__name {
  font-family: var(--f-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--c-ink-mute);
  transition: color var(--d-fast) var(--ease-sand);
}

.site-nav__link:hover .site-nav__name,
.site-nav__link[aria-current="page"] .site-nav__name {
  color: var(--c-ink-soft);
}

.site-nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background-color: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--d-base) var(--ease-sand);
}

.site-nav__link:hover,
.site-nav__link[aria-current="page"] {
  color: var(--c-ink);
}

.site-nav__link:hover::after,
.site-nav__link[aria-current="page"]::after {
  transform: scaleX(1);
}

.site-nav__end {
  display: flex;
  align-items: center;
  gap: var(--s-4);
}

@media (max-width: 46rem) {
  .site-nav__links {
    display: none;
  }
}

/* On a phone the hero's own call to action is already in view, so the nav
   keeps just the mark and the theme control. */
@media (max-width: 34rem) {
  .site-nav__cta {
    display: none;
  }
}

/* ---- Theme toggle --------------------------------------------------------- */

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.1rem;
  height: 2.1rem;
  padding: 0;
  border: 1px solid var(--c-line-soft);
  border-radius: var(--r-sm);
  background: none;
  color: var(--c-ink-mute);
  cursor: pointer;
  transition: color var(--d-fast) var(--ease-sand),
    border-color var(--d-fast) var(--ease-sand);
}

.theme-toggle:hover {
  color: var(--c-ink);
  border-color: var(--c-line);
}

.theme-toggle svg {
  width: 1rem;
  height: 1rem;
}

.theme-toggle__moon {
  display: none;
}

:root[data-theme="dark"] .theme-toggle__sun {
  display: none;
}

:root[data-theme="dark"] .theme-toggle__moon {
  display: block;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-toggle__sun {
    display: none;
  }

  :root:not([data-theme="light"]) .theme-toggle__moon {
    display: block;
  }
}

/* ---- Fields ---------------------------------------------------------------- */

.field {
  display: flex;
  flex-direction: column;
  gap: var(--s-2);
}

.field__label {
  font-family: var(--f-mono);
  font-size: var(--t-xs);
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
  color: var(--c-ink-mute);
}

.field__control {
  width: 100%;
  padding: 0.8em 0.9em;
  background-color: var(--c-ground);
  border: 1px solid var(--c-line);
  border-radius: var(--r-sm);
  color: var(--c-ink);
  font-size: var(--t-base);
  transition: border-color var(--d-fast) var(--ease-sand),
    background-color var(--d-fast) var(--ease-sand);
}

.field__control::placeholder {
  color: var(--c-ink-mute);
  opacity: 0.7;
}

.field__control:hover {
  border-color: var(--c-ink-mute);
}

.field__control:focus {
  outline: none;
  border-color: var(--c-accent);
  background-color: var(--c-ground-raised);
}

.field__control:focus-visible {
  outline: 2px solid var(--c-focus);
  outline-offset: 2px;
}

textarea.field__control {
  resize: vertical;
  min-height: 8rem;
  line-height: 1.55;
}

select.field__control {
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, currentColor 50%),
    linear-gradient(135deg, currentColor 50%, transparent 50%);
  background-position: calc(100% - 1.1rem) 55%, calc(100% - 0.75rem) 55%;
  background-size: 0.35rem 0.35rem, 0.35rem 0.35rem;
  background-repeat: no-repeat;
  padding-right: 2.5rem;
  cursor: pointer;
}

.field__hint {
  font-size: var(--t-sm);
  color: var(--c-ink-mute);
}

.field__error {
  font-size: var(--t-sm);
  color: var(--c-seam);
}

.field--invalid .field__control {
  border-color: var(--c-seam);
}

/* ---- Disclosure ---------------------------------------------------------------
   Used for FAQs. Open by default is wrong here — the point is a scannable list
   of questions — but the answer must still be reachable without JavaScript. */

.faq__item {
  border-top: 1px solid var(--c-line-soft);
}

.faq__item:last-child {
  border-bottom: 1px solid var(--c-line-soft);
}

.faq__question {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--s-5);
  padding-block: var(--s-5);
  cursor: pointer;
  list-style: none;
  font-family: var(--f-display);
  font-size: var(--t-md);
  letter-spacing: var(--ls-tight);
  color: var(--c-ink);
  transition: color var(--d-fast) var(--ease-sand);
}

.faq__question::-webkit-details-marker {
  display: none;
}

.faq__question:hover {
  color: var(--c-accent);
}

.faq__marker {
  position: relative;
  flex: none;
  width: 0.75rem;
  height: 0.75rem;
  align-self: center;
}

.faq__marker::before,
.faq__marker::after {
  content: "";
  position: absolute;
  background-color: currentColor;
  transition: transform var(--d-base) var(--ease-sand);
}

.faq__marker::before {
  inset: 45% 0 45% 0;
}

.faq__marker::after {
  inset: 0 45% 0 45%;
}

.faq__item[open] .faq__marker::after {
  transform: scaleY(0);
}

.faq__answer {
  padding-bottom: var(--s-5);
  max-width: 62ch;
  color: var(--c-ink-soft);
  line-height: 1.62;
}

/* ---- Situation picker ------------------------------------------------------------
   A radio group presented as a set of plates, because choosing the situation is
   the most important thing the form asks for. */

.situations-picker {
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
  border: 0;
  padding: 0;
  margin: 0;
  min-width: 0;
}

.situations-picker legend {
  margin-bottom: var(--s-2);
  padding: 0;
}

.situation {
  display: flex;
  align-items: flex-start;
  gap: var(--s-4);
  padding: var(--s-4);
  border: 1px solid var(--c-line-soft);
  border-radius: var(--r-sm);
  background-color: var(--c-ground);
  cursor: pointer;
  transition: border-color var(--d-fast) var(--ease-sand),
    background-color var(--d-fast) var(--ease-sand);
}

.situation:hover {
  border-color: var(--c-ink-mute);
}

.situation__input {
  flex: none;
  margin: 0;
  margin-top: 0.3em;
  accent-color: var(--c-accent);
}

.situation:has(.situation__input:checked) {
  border-color: var(--c-accent);
  background-color: var(--c-accent-wash);
}

.situation:has(.situation__input:focus-visible) {
  outline: 2px solid var(--c-focus);
  outline-offset: 2px;
}

.situation__body {
  display: flex;
  flex-direction: column;
  gap: var(--s-1);
  min-width: 0;
}

.situation__title {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: var(--s-3);
  font-weight: 500;
  color: var(--c-ink);
}

.situation__practice {
  font-family: var(--f-mono);
  font-size: var(--t-xs);
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
  color: var(--c-ink-mute);
}

.situation__note {
  font-size: var(--t-sm);
  color: var(--c-ink-mute);
  line-height: 1.5;
}

/* ---- Notice ----------------------------------------------------------------- */

.notice {
  display: flex;
  gap: var(--s-4);
  padding: var(--s-5);
  border: 1px solid var(--c-accent);
  border-left-width: 3px;
  border-radius: var(--r-sm);
  background-color: var(--c-accent-wash);
  font-size: var(--t-sm);
  color: var(--c-ink-soft);
}

.notice--seam {
  border-color: var(--c-seam);
  background-color: var(--c-seam-wash);
}

/* ---- Footer ------------------------------------------------------------------ */

.site-footer {
  border-top: 1px solid var(--c-line-soft);
  padding-block: var(--s-8) var(--s-6);
  margin-top: var(--section);
}

.site-footer__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) repeat(2, minmax(0, 1fr));
  gap: var(--s-7) var(--s-5);
}

@media (max-width: 46rem) {
  .site-footer__grid {
    grid-template-columns: 1fr;
    gap: var(--s-6);
  }
}

.site-footer__blurb {
  max-width: 30ch;
  margin-top: var(--s-4);
  font-size: var(--t-sm);
  color: var(--c-ink-mute);
}

.site-footer__list {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--s-2);
  font-size: var(--t-sm);
}

.site-footer__list a {
  color: var(--c-ink-soft);
  text-decoration: none;
}

.site-footer__list a:hover {
  color: var(--c-accent);
}

.site-footer__base {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-4);
  justify-content: space-between;
  align-items: baseline;
  margin-top: var(--s-8);
  padding-top: var(--s-5);
  border-top: 1px solid var(--c-line-soft);
  font-family: var(--f-mono);
  font-size: var(--t-xs);
  color: var(--c-ink-mute);
}