/* ============================================================
   Ground Truth · Check-in pages (shared)
   Header, eyebrow, form controls, buttons, meta rows.
   Depends on tokens.css + base.css. Mobile-first: these pages
   are opened from a QR code, so the phone is the primary view.
   ============================================================ */

/* ---------- Page frame --------------------------------- */
.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg-page);
}
.page__main {
  flex: 1;
  padding-inline: var(--nav-pad);
  padding-block: clamp(1.5rem, 5vw, 4rem) clamp(3rem, 8vw, 6rem);
}

/* ---------- Header (same bar as the home page) --------- */
.site-header { background: var(--bg-page); }
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-24);
  min-height: 64px;                     /* sphere.com header: h-16, md:h-17.75 */
  padding-inline: var(--nav-pad);
  padding-block: 16px;
}
@media (min-width: 768px) { .site-header__inner { min-height: 71px; } }
/* Logo lockup as on sphere.com: 32px logomark + 6px gap + 65x20 wordmark */
.site-header__logo {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
  transition: scale 200ms;
}
.site-header__logo:active { scale: 0.97; }
.site-header__logo img { display: block; height: auto; }
.site-header__logo .logo-mark { width: 32px; height: 32px; }
.site-header__logo .logo-word { width: 65px; height: 20px; }
.site-header__note {
  color: var(--color-midnight-60);
  font-size: 0.875rem;
  line-height: 1.2;
  white-space: nowrap;
}

/* ---------- Eyebrow: device-line mark + label ---------- */
.eyebrow { display: flex; align-items: center; gap: var(--space-16); }
.device-line {
  display: inline-flex;
  align-items: center;
  height: 26px;
  flex-shrink: 0;
  color: var(--color-night);
}
.device-line span:first-child { width: 13px; height: 5px; background: currentColor; }
.device-line span:last-child  { width: 10px; height: 1px; background: currentColor; }
.eyebrow__label {
  font-size: 0.875rem;
  line-height: 1.2;
  color: var(--color-midnight-40);
}

/* ---------- Buttons (copied from the home page) -------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
  padding: 14px 24px;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  font-family: var(--font-secondary);
  font-weight: var(--weight-regular);
  font-size: var(--fs-button);
  line-height: var(--lh-button);
  letter-spacing: var(--tr-button);
  white-space: nowrap;
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out),
              transform var(--dur-fast) var(--ease-out),
              opacity var(--dur-fast) var(--ease-out);
}
.btn:hover  { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; transform: none; }
.btn--dark  { background: var(--color-night); color: var(--text-inverse); }
.btn--dark:hover { background: var(--color-midnight-80); }
.btn--light { background: var(--color-white); color: var(--color-night); border-color: var(--color-stone-80); }
.btn--light:hover { border-color: var(--color-midnight-40); }
.btn--block { width: 100%; }
.btn:focus-visible,
.link:focus-visible { outline: 2px solid var(--color-night); outline-offset: 3px; }

.link {
  background: none;
  border: 0;
  padding: 0;
  font: inherit;
  color: var(--color-midnight-40);
  text-decoration: underline;
  text-underline-offset: 3px;
  cursor: pointer;
}
.link:hover { color: var(--color-night); }

/* ---------- Form controls ------------------------------ */
.field { display: flex; flex-direction: column; gap: var(--space-8); }
.field__label {
  font-size: 0.875rem;
  line-height: 1.2;
  color: var(--color-night);
}
.field__hint {
  font-size: 0.875rem;
  line-height: 1.4;
  color: var(--color-midnight-40);
}
.field__input {
  width: 100%;
  min-height: 52px;
  padding: 14px 16px;
  background: var(--color-white);
  border: 1px solid var(--color-stone-80);
  border-radius: var(--radius-sm);
  font-family: var(--font-secondary);
  font-size: 1rem;
  line-height: 1.4;
  color: var(--color-night);
  transition: border-color var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out);
  -webkit-appearance: none;
  appearance: none;
}
.field__input::placeholder { color: var(--color-stone-100); }
.field__input:hover { border-color: var(--color-midnight-20); }
.field__input:focus { outline: none; border-color: var(--color-night); box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-volt) 45%, transparent); }
.field__input[aria-invalid="true"] { border-color: var(--color-plum); }
.field__error {
  font-size: 0.875rem;
  line-height: 1.4;
  color: var(--color-plum);
}
.field__error:empty { display: none; }

/* Prefixed input: "linkedin.com/in/" + handle */
.field__group {
  display: flex;
  align-items: stretch;
  background: var(--color-white);
  border: 1px solid var(--color-stone-80);
  border-radius: var(--radius-sm);
  transition: border-color var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out);
}
.field__group:hover { border-color: var(--color-midnight-20); }
.field__group:focus-within { border-color: var(--color-night); box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-volt) 45%, transparent); }
.field__prefix {
  display: flex;
  align-items: center;
  padding-left: 16px;
  color: var(--color-midnight-20);
  font-size: 1rem;
  white-space: nowrap;
}
.field__group .field__input { border: 0; box-shadow: none; padding-left: 2px; background: transparent; }
.field__group .field__input:focus { box-shadow: none; }

/* Checkbox row */
.check {
  display: grid;
  grid-template-columns: 18px 1fr;
  gap: 6px var(--space-16);
  align-items: start;
  padding: 20px;
  background: var(--color-white);
  border: 1px solid var(--color-stone-80);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: border-color var(--dur-fast) var(--ease-out);
}
.check:hover { border-color: var(--color-midnight-20); }
.check:has(:checked) { border-color: var(--color-night); }
.check:has(:focus-visible) { box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-volt) 45%, transparent); }
.check__input {
  appearance: none;
  -webkit-appearance: none;
  width: 18px; height: 18px;
  margin: 2px 0 0;
  border: 1px solid var(--color-stone-100);
  border-radius: 5px;
  background: var(--color-white);
  display: grid;
  place-content: center;
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out);
}
.check__input::before {
  content: "";
  width: 10px; height: 10px;
  background: var(--color-night);
  clip-path: polygon(14% 50%, 0 66%, 40% 100%, 100% 20%, 86% 6%, 40% 70%);
  transform: scale(0);
  transition: transform var(--dur-fast) var(--ease-out);
}
.check__input:checked { border-color: var(--color-night); background: var(--color-volt); }
.check__input:checked::before { transform: scale(1); }
.check__input:focus-visible { outline: none; }
.check__title { font-size: 1rem; line-height: 1.4; color: var(--color-night); }
.check__hint { grid-column: 2; font-size: 0.875rem; line-height: 1.4; color: var(--color-midnight-40); }

/* Two-option choice (Yes / No) */
.choice { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-12); }
.choice__opt {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
  min-height: 52px;
  padding: 12px 16px;
  background: var(--color-white);
  border: 1px solid var(--color-stone-80);
  border-radius: var(--radius-pill);
  font-size: 1rem;
  line-height: 1.2;
  color: var(--color-night);
  text-align: center;
  cursor: pointer;
  transition: border-color var(--dur-fast) var(--ease-out), background var(--dur-fast) var(--ease-out);
}
.choice__opt input { position: absolute; inset: 0; opacity: 0; margin: 0; cursor: pointer; }
.choice__opt:hover { border-color: var(--color-midnight-20); }
.choice__opt:has(:checked) { background: var(--color-night); border-color: var(--color-night); color: var(--text-inverse); }
.choice__opt:has(:focus-visible) { box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-volt) 45%, transparent); }

/* Reveal helper for conditional fields */
.reveal { display: grid; grid-template-rows: 0fr; transition: grid-template-rows var(--dur-base) var(--ease-out); }
.reveal > * { overflow: hidden; min-height: 0; }
.reveal.is-open { grid-template-rows: 1fr; }
.reveal:not(.is-open) > * { visibility: hidden; }

/* ---------- Meta rows (hero-style label / value) ------- */
.meta { display: flex; flex-direction: column; gap: 10px; font-size: 1rem; line-height: 1.3; color: var(--color-midnight-60); }
.meta__row { display: flex; justify-content: space-between; gap: var(--space-24); }
.meta__row span:last-child { text-align: right; color: var(--color-night); }
.meta__divider { height: 0; margin: 0; border: 0; border-top: 1px solid var(--color-stone-100); }

/* ---------- Reduced motion ----------------------------- */
@media (prefers-reduced-motion: reduce) {
  .btn, .reveal, .check__input, .check__input::before { transition: none; }
}

/* ============================================================
   Form controls as on sphere.com/contact
   Overrides the base field/check/button rules above.
   ============================================================ */
@property --border-angle { syntax: "<angle>"; inherits: false; initial-value: 90deg; }

.field { gap: 10px; }
.field__label { font-size: 1rem; line-height: 1.1; letter-spacing: 0.02em; color: var(--color-midnight-100); }
.field__hint, .field__error { font-size: 0.875rem; line-height: 1.2; letter-spacing: 0.02em; }

/* Borderless input inside a 1px conic-gradient hairline that spins on hover */
.field__control, .field__group { position: relative; border-radius: 4px; background: var(--color-white); }
.field__control::before, .field__group::before {
  content: "";
  position: absolute; inset: 0;
  padding: 1px;
  border-radius: inherit;
  pointer-events: none;
  opacity: 0.3;
  background: conic-gradient(from var(--border-angle), #8a8f8a 0deg, rgba(94, 98, 94, 0.1) 90deg, #5e625e 180deg, rgba(94, 98, 94, 0.1) 270deg, #8a8f8a 360deg);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask: linear-gradient(#fff 0 0) content-box exclude, linear-gradient(#fff 0 0);
  transition: opacity 0.2s, --border-angle 4s cubic-bezier(0.5, 0, 0.15, 1);
}
.field__control:hover::before, .field__group:hover::before { --border-angle: 450deg; transition: opacity 0.2s, --border-angle 5s linear; }
.field__control:focus-within::before, .field__group:focus-within::before { opacity: 0.9; }
.field__control:has([aria-invalid="true"])::before,
.field__group:has([aria-invalid="true"])::before { opacity: 1; background: var(--color-plum); }

.field__input, .field__group {
  min-height: 48px;
  border: 0;
  border-radius: 4px;
  box-shadow: none;
}
.field__input { padding: 12px; font-size: clamp(1rem, 0.925rem + 0.25vw, 1.125rem); line-height: 1.4; transition: background var(--dur-fast) var(--ease-out); }
.field__input::placeholder { color: var(--color-midnight-20); }
.field__input:hover, .field__input:focus, .field__input[aria-invalid="true"] { border: 0; box-shadow: none; }
.field__input:focus { background: rgba(138, 143, 138, 0.05); }
.field__group:hover, .field__group:focus-within { border: 0; box-shadow: none; }
.field__group:focus-within { background: rgba(138, 143, 138, 0.05); }
.field__group .field__input:focus { background: transparent; }
.field__prefix { padding-left: 12px; font-size: clamp(1rem, 0.925rem + 0.25vw, 1.125rem); }

/* Checkbox: bare row, 20px box, fills night when checked */
.check {
  grid-template-columns: 20px 1fr;
  gap: 4px 12px;
  padding: 0;
  background: transparent;
  border: 0;
  border-radius: 0;
}
.check:hover, .check:has(:checked) { border-color: transparent; }
.check:has(:focus-visible) { box-shadow: none; }
.check__input { width: 20px; height: 20px; margin: 0; align-self: start; border-color: var(--color-midnight-20); border-radius: 4px; transition: background 150ms, border-color 150ms; }
.check__input:checked { border-color: var(--color-night); background: var(--color-night); }
.check__input::before { width: 11px; height: 11px; background: var(--color-white); }
.check__input:focus-visible { outline: 2px solid var(--color-night); outline-offset: 2px; }
.check__title { font-size: 0.875rem; line-height: 20px; letter-spacing: 0.02em; color: var(--color-midnight-100); margin-top: 0; }
.check__hint  { font-size: 0.875rem; line-height: 1.2; letter-spacing: 0.02em; color: var(--color-midnight-40); }

/* Yes / No pills share the input hairline */
.choice__opt { position: relative; border: 0; background: var(--color-white); min-height: 46px; letter-spacing: 0.02em; }
.choice__opt::before {
  content: "";
  position: absolute; inset: 0;
  padding: 1px;
  border-radius: inherit;
  pointer-events: none;
  opacity: 0.3;
  background: conic-gradient(from var(--border-angle), #8a8f8a 0deg, rgba(94, 98, 94, 0.1) 90deg, #5e625e 180deg, rgba(94, 98, 94, 0.1) 270deg, #8a8f8a 360deg);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask: linear-gradient(#fff 0 0) content-box exclude, linear-gradient(#fff 0 0);
  transition: opacity 0.2s, --border-angle 4s cubic-bezier(0.5, 0, 0.15, 1);
}
.choice__opt:hover { border: 0; }
.choice__opt:hover::before { --border-angle: 450deg; transition: opacity 0.2s, --border-angle 5s linear; }
.choice__opt:has(:checked) { background: var(--color-night); border: 0; }
.choice__opt:has(:checked)::before { opacity: 0; }
.choice__opt:has(:focus-visible) { box-shadow: none; outline: 2px solid var(--color-night); outline-offset: 2px; }

/* Primary button: night pill that inverts to white on hover, with the same gradient hairline */
.btn--dark {
  position: relative;
  min-height: 46px;
  padding: 10px 20px;
  border: 0;
  font-size: 1rem;
  line-height: 1.1;
  letter-spacing: 0.02em;
  overflow: hidden;
  transform: scale(1);
  transition: scale 500ms, background 500ms, color 500ms;
}
.btn--dark::before {
  content: "";
  position: absolute; inset: 0;
  padding: 1px;
  border-radius: inherit;
  pointer-events: none;
  opacity: 0;
  background: conic-gradient(from var(--border-angle), #8a8f8a 0deg, rgba(94, 98, 94, 0.1) 90deg, #5e625e 180deg, rgba(94, 98, 94, 0.1) 270deg, #8a8f8a 360deg);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask: linear-gradient(#fff 0 0) content-box exclude, linear-gradient(#fff 0 0);
  transition: opacity 0.3s, --border-angle 4s cubic-bezier(0.5, 0, 0.15, 1);
}
.btn--dark:hover { transform: none; background: var(--color-white); color: var(--color-night); }
.btn--dark:hover::before { opacity: 0.3; --border-angle: 450deg; transition: opacity 0.3s, --border-angle 5s linear; }
.btn--dark:active { transform: scale(0.98); }