/* Indra site chrome — the header, the footer, and the footer's contact menu
   and form. One design on every page, taken from the homepage: the brand and
   a glass sign-in button up top; underlined Michroma links over a line of
   fine print at the bottom. Every page is dark, so the chrome is too. */

:root {
  --ch-strong: #F7FAFC;
  --ch-text: #E8F0F6;
  --ch-soft: #C2D3DF;
  --ch-dim: #8FA6B8;
  --ch-faint: #5C7183;
  --ch-rule: rgba(194, 211, 223, .35);        /* link underlines */
  --ch-edge: rgba(200, 222, 238, .22);        /* control borders */
  --ch-edge-hover: rgba(200, 222, 238, .45);
  /* Blur (backdrop-filter) only where the element sits on whole device
     pixels, like the sign-in button: Safari drops the top border of a blurred
     element placed between them, which the menu and the dialog usually are
     — they are near-opaque instead. */
  --ch-glass: rgba(16, 29, 46, .35);          /* the sign-in button */
  --ch-panel: rgba(10, 20, 34, .95);          /* the contact menu */
  --ch-panel-edge: rgba(200, 222, 238, .16);
  --ch-hover: rgba(194, 211, 223, .08);
  --ch-dialog: rgba(9, 18, 31, .98);
  --ch-field: rgba(2, 4, 10, .45);
  --ch-shadow: 0 18px 50px rgba(2, 4, 10, .5);
  --ch-signal: #FFCB22;
  --ch-signal-press: #E1B801;
  --ch-on-signal: #050A12;
  --ch-warn: #F4A48E;
  --ch-disp: 'Michroma', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --ch-mono: 'Fragment Mono', ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --ch-sys: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

/* ———— header ———— */

.site-header {
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: calc(22px + env(safe-area-inset-top)) 32px 22px;
}
.site-header .brand {
  font-family: var(--ch-disp);
  font-size: 15px;
  letter-spacing: .22em;
  text-decoration: none;
  color: var(--ch-strong);
}
.site-header .signin {
  display: inline-block;
  width: 118px;
  padding: 8px 0;
  font-family: var(--ch-disp);
  font-size: 11px;
  line-height: 1.6;
  letter-spacing: .1em;
  text-align: center;
  text-decoration: none;
  color: var(--ch-text);
  border: 1px solid var(--ch-edge);
  border-radius: 2px;
  background: var(--ch-glass);
  -webkit-backdrop-filter: blur(18px) saturate(1.15);
  backdrop-filter: blur(18px) saturate(1.15);
  transition: border-color 150ms ease-out;
}
.site-header .signin:hover { border-color: var(--ch-edge-hover); text-decoration: none; }
.site-header .brand:hover { text-decoration: none; }

/* ———— footer ———— */

.site-footer {
  position: relative;
  z-index: 2;
  padding: 40px 0 calc(44px + env(safe-area-inset-bottom));
  color: var(--ch-soft);
  text-align: center;
}
.site-footer .foot {
  max-width: 1020px;
  margin: 0 auto;
  padding: 0 28px;
}
.flinks {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px 28px;
  margin: 44px 0 34px;
}
.flinks:first-child { margin-top: 0; }   /* the margin parts it from the homepage's console */
.flinks a,
.flinks .contact-btn {
  font-family: var(--ch-disp);
  font-size: 10.5px;
  line-height: 1.6;
  letter-spacing: .16em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--ch-soft);
  border: 0;
  border-bottom: 1px solid var(--ch-rule);
  border-radius: 0;
  padding: 0 0 2px;
  background: none;
  cursor: pointer;
  transition: border-color 150ms ease-out, color 150ms ease-out;
}
.flinks a:hover,
.flinks .contact-btn:hover,
.flinks .contact-btn[aria-expanded="true"] {
  color: var(--ch-strong);
  border-color: var(--ch-signal);
  text-decoration: none;
}
.foot-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 32px;
  font-family: var(--ch-disp);
  font-size: 10px;
  line-height: 1.9;
  letter-spacing: .06em;
  color: var(--ch-faint);
}
.foot-meta a { color: var(--ch-soft); text-decoration: underline; text-underline-offset: 2px; }
.foot-meta a:hover { color: var(--ch-strong); }
.foot-meta .mono { font-family: var(--ch-mono); font-size: 10px; letter-spacing: .06em; }

.site-header a:focus-visible,
.site-footer a:focus-visible,
.site-footer button:focus-visible,
.cmenu [role="menuitem"]:focus-visible,
.cform button:focus-visible,
.cform a:focus-visible {
  outline: 2px solid var(--ch-faint);
  outline-offset: 3px;
}

/* ———— contact: a menu that opens where the link is ———— */

.cmenu-anchor { position: relative; display: inline-flex; }   /* flex: no line box of its own to sit the button lower */
.cmenu {
  position: absolute;
  left: 50%;
  bottom: calc(100% + 14px);
  z-index: 30;
  min-width: 280px;
  padding: 6px;
  text-align: left;
  background: var(--ch-panel);
  border: 1px solid var(--ch-panel-edge);
  border-radius: 12px;
  box-shadow: var(--ch-shadow);
  transform-origin: 50% 100%;
  transform: translateX(calc(-50% + var(--cm-dx, 0px))) translateY(6px) scale(.96);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 150ms ease-out, transform 200ms cubic-bezier(.2, .8, .2, 1), visibility 0s linear 200ms;
}
.cmenu.below { bottom: auto; top: calc(100% + 14px); transform-origin: 50% 0; transform: translateX(calc(-50% + var(--cm-dx, 0px))) translateY(-6px) scale(.96); }
.cmenu.open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(calc(-50% + var(--cm-dx, 0px))) translateY(0) scale(1);
  transition: opacity 150ms ease-out, transform 200ms cubic-bezier(.2, .8, .2, 1), visibility 0s;
}
.cmenu [role="menuitem"] {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  width: 100%;
  padding: 12px 12px;
  font-family: var(--ch-disp);
  font-size: 10px;
  line-height: 1.5;
  letter-spacing: .14em;
  text-transform: uppercase;
  text-align: left;
  text-decoration: none;
  color: var(--ch-text);
  background: none;
  border: 0;
  border-radius: 8px;
  cursor: pointer;
  white-space: nowrap;
}
.cmenu [role="menuitem"]:hover,
.cmenu [role="menuitem"]:focus-visible { background: var(--ch-hover); color: var(--ch-strong); text-decoration: none; }
.cmenu [role="menuitem"]:focus-visible { outline-offset: -2px; }
.cmenu .hint {
  font-family: var(--ch-mono);
  font-size: 11.5px;
  letter-spacing: .02em;
  text-transform: none;
  color: var(--ch-dim);
}
.cmenu .done .hint { color: var(--ch-signal); }

/* ———— the contact form ———— */

html.cform-open { overflow: hidden; }
.cform {
  width: min(520px, calc(100% - 24px));
  max-height: calc(100dvh - 24px);
  margin: auto;
  padding: 0;
  overflow: auto;
  overscroll-behavior: contain;
  color: var(--ch-text);
  background: var(--ch-dialog);
  border: 1px solid var(--ch-panel-edge);
  border-radius: 12px;
  box-shadow: var(--ch-shadow);
  font-family: var(--ch-sys);
  text-align: left;
}
.cform::backdrop { background: rgba(2, 4, 10, .6); -webkit-backdrop-filter: blur(3px); backdrop-filter: blur(3px); }
.cform[open] { animation: cform-in 220ms cubic-bezier(.2, .8, .2, 1); }
@keyframes cform-in { from { opacity: 0; transform: translateY(10px) scale(.98); } }
.cform .pane { padding: 24px 26px 24px; }
.cform .head { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.cform h2 {
  margin: 0;
  font-family: var(--ch-disp);
  font-size: 12px;
  font-weight: 400;
  line-height: 1.5;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--ch-strong);
}
.cform .x {
  flex: none;
  width: 34px;
  height: 34px;
  margin: -6px -8px -6px 0;
  font: 20px/1 var(--ch-sys);
  color: var(--ch-dim);
  background: none;
  border: 0;
  border-radius: 8px;
  cursor: pointer;
}
.cform .x:hover { color: var(--ch-strong); background: var(--ch-hover); }
.cform .sub { margin: 10px 0 4px; font-size: 14px; line-height: 1.55; color: var(--ch-dim); }
.cform label {
  display: block;
  margin-top: 18px;
  font-family: var(--ch-disp);
  font-size: 9px;
  line-height: 1.5;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ch-dim);
}
.cform label .opt { margin-left: 6px; color: var(--ch-faint); }
.cform input,
.cform textarea {
  display: block;
  width: 100%;
  margin-top: 8px;
  padding: 11px 13px;
  font: 16px/1.5 var(--ch-sys);    /* 16 px: iOS zooms into anything smaller */
  letter-spacing: 0;
  text-transform: none;
  color: var(--ch-strong);
  background: var(--ch-field);
  border: 1px solid var(--ch-edge);
  border-radius: 2px;
  transition: border-color 150ms ease-out;
}
.cform textarea { min-height: 150px; resize: vertical; }
.cform input:focus,
.cform textarea:focus { outline: none; border-color: var(--ch-edge-hover); }
.cform input:focus-visible,
.cform textarea:focus-visible { outline: 2px solid var(--ch-faint); outline-offset: 2px; }
.cform input[aria-invalid="true"],
.cform textarea[aria-invalid="true"] { border-color: var(--ch-warn); }
.cform .field-err { display: block; margin-top: 7px; font-family: var(--ch-sys); font-size: 13px; letter-spacing: 0; text-transform: none; color: var(--ch-warn); }
.cform .hp { position: absolute; left: -10000px; width: 1px; height: 1px; opacity: 0; }
.cform .actions { display: flex; align-items: center; justify-content: flex-end; gap: 18px; margin-top: 22px; }
.cform .status { flex: 1; margin: 0; font-size: 13.5px; line-height: 1.5; color: var(--ch-dim); }
.cform .status.err { color: var(--ch-warn); }
.cform .status a { color: inherit; text-decoration: underline; text-underline-offset: 2px; }
.cform .send,
.cform .close {
  flex: none;
  padding: 12px 24px;
  font: 600 15px/1.2 var(--ch-sys);
  color: var(--ch-on-signal);
  background: var(--ch-signal);
  border: 0;
  border-radius: 2px;
  cursor: pointer;
  transition: background 150ms ease-out;
}
.cform .send:hover,
.cform .close:hover { background: var(--ch-signal-press); }
.cform .send[disabled] { opacity: .6; cursor: default; }
.cform .done { text-align: left; }
.cform .done p { margin: 12px 0 0; font-size: 15px; line-height: 1.6; color: var(--ch-soft); }
.cform .done b { font-weight: 500; color: var(--ch-strong); }
.cform .done .actions { justify-content: flex-start; }

@media (max-width: 640px) {
  .site-header { padding: calc(18px + env(safe-area-inset-top)) 20px 18px; }
  .flinks { gap: 12px 20px; }
  .cmenu { min-width: 0; width: max-content; max-width: calc(100vw - 24px); }
  .cform .pane { padding: 20px 18px 20px; }
  .cform .actions { flex-wrap: wrap; }
  .cform .send { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  .cmenu, .cmenu.open { transition: none; }
  .cform[open] { animation: none; }
}