/* ============================================================
   Digital Discovery — Shared site chrome styles
   Header, footer, modals. Link AFTER colors_and_type.css.
   ============================================================ */

/* -------- Reset + base -------- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { min-height: 100vh; font-family: var(--font-sans); color: var(--fg); background: var(--bg); overflow-x: hidden; }

/* -------- Ambient geometry (global) -------- */
.ambient {
  position: fixed; inset: 0; pointer-events: none; z-index: 0; overflow: hidden;
}
.ambient::before {
  content: ''; position: absolute; top: -20%; right: -10%;
  width: 60vw; height: 60vw;
  background: radial-gradient(circle, rgba(255, 169, 138, 0.28) 0%, transparent 60%);
  filter: blur(16px);
  animation: amb1 38s ease-in-out infinite alternate;
}
.ambient::after {
  content: ''; position: absolute; bottom: -20%; left: -12%;
  width: 65vw; height: 65vw;
  background: radial-gradient(circle, rgba(120, 212, 217, 0.22) 0%, transparent 60%);
  filter: blur(16px);
  animation: amb2 46s ease-in-out infinite alternate;
}
[data-theme="dark"] .ambient::before { background: radial-gradient(circle, rgba(255, 122, 138, 0.18) 0%, transparent 60%); }
[data-theme="dark"] .ambient::after  { background: radial-gradient(circle, rgba(110, 140, 201, 0.22) 0%, transparent 60%); }
@keyframes amb1 { 0%{transform:translate(0,0) scale(1);} 100%{transform:translate(-5%,4%) scale(1.08);} }
@keyframes amb2 { 0%{transform:translate(0,0) scale(1);} 100%{transform:translate(5%,-4%) scale(1.1);} }

/* -------- Layout wrap -------- */
.page { position: relative; z-index: 1; }

/* ============================================================
   SITE NAV
   ============================================================ */
.site-nav {
  position: sticky; top: 0; z-index: 90;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 40px;
  padding: 20px 56px;
  background: color-mix(in oklab, var(--bg) 82%, transparent);
  backdrop-filter: blur(18px) saturate(1.2);
  -webkit-backdrop-filter: blur(18px) saturate(1.2);
  border-bottom: 1px solid var(--fg-line);
}
.site-nav .brand {
  display: inline-flex; align-items: baseline; gap: 12px;
  text-decoration: none; color: var(--fg);
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.site-nav .brand-mark { font-size: 22px; line-height: 1; }
.site-nav .brand-word { font-size: 13px; color: var(--fg-faint); letter-spacing: 0.22em; font-family: var(--font-mono); }

.site-nav .nav-links {
  justify-self: center;
  display: flex;
  gap: 32px;
  align-items: center;
}
.site-nav .nav-links a {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--fg-soft);
  text-decoration: none;
  padding: 6px 0;
  border-bottom: 1px solid transparent;
  transition: color 200ms var(--ease), border-color 200ms var(--ease);
}
.site-nav .nav-links a:hover { color: var(--coral-deep); }
.site-nav .nav-links a.is-active { color: var(--fg); border-bottom-color: var(--coral-deep); }

.site-nav .nav-right {
  display: flex; align-items: center; gap: 14px;
}
.site-nav .nav-cta {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 20px;
  background: var(--grad-peachcoral);
  color: var(--ink);
  text-decoration: none;
  border-radius: var(--r-pill);
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  transition: transform 220ms var(--ease), box-shadow 220ms var(--ease);
}
.site-nav .nav-cta:hover { transform: translateY(-1px); box-shadow: var(--shadow-card); }
.site-nav .nav-cta .arw { transition: transform 220ms var(--ease); }
.site-nav .nav-cta:hover .arw { transform: translateX(3px); }

/* Theme toggle */
.theme-toggle {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 9px 14px;
  background: var(--bg-soft);
  border: 1px solid var(--fg-line);
  border-radius: var(--r-pill);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--fg-soft);
  cursor: default;
}
.theme-toggle .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--grad-sunset); }
.theme-toggle .theme-time {
  letter-spacing: 0.08em;
  color: var(--fg);
}

/* ============================================================
   SITE FOOTER
   ============================================================ */
.site-foot {
  position: relative; z-index: 1;
  border-top: 2px solid var(--fg);
  padding: 72px 72px 28px;
  background: var(--bg-soft);
}
.foot-main {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 56px;
  padding-bottom: 56px;
  border-bottom: 1px solid var(--fg-line);
}
.foot-brand .foot-mark {
  font-family: var(--font-display);
  font-size: 54px;
  line-height: 1;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg);
}
.foot-brand .foot-tagline {
  margin-top: 18px;
  font-family: var(--font-display);
  font-size: 22px;
  line-height: 1.25;
  letter-spacing: 0.02em;
  text-transform: none;
  color: var(--fg);
  max-width: 32ch;
}
.foot-brand .foot-signature {
  margin-top: 24px;
  font-family: 'Instrument Serif', Georgia, serif;
  font-style: italic;
  font-size: 20px;
  color: var(--coral-deep);
}
.foot-col { display: flex; flex-direction: column; gap: 12px; }
.foot-col .foot-eyebrow {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--fg-faint);
  margin-bottom: 8px;
}
.foot-col a {
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--fg-soft);
  text-decoration: none;
  transition: color 180ms var(--ease), padding-left 180ms var(--ease);
}
.foot-col a:hover { color: var(--coral-deep); padding-left: 4px; }

.foot-bottom {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 40px;
  padding-top: 28px;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--fg-faint);
}
.foot-bottom .foot-mid { text-align: center; }
.foot-bottom .foot-mid b { color: var(--fg); font-weight: 500; }
.foot-bottom .foot-mid { color: var(--fg); }
.foot-bottom .foot-version { text-align: right; }
.foot-bottom .foot-version a {
  color: var(--fg);
  text-decoration: none;
  border-bottom: 1px solid var(--fg-line);
  padding-bottom: 3px;
  transition: color 180ms var(--ease), border-color 180ms var(--ease);
}
.foot-bottom .foot-version a:hover {
  color: var(--coral-deep);
  border-color: var(--coral-deep);
}

.foot-social {
  display: flex;
  gap: 20px;
  align-items: center;
  justify-content: center;
  padding: 24px 0 20px;
  border-top: 1px solid var(--fg-line);
  margin-top: 0;
}
.foot-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  color: var(--fg-faint);
  transition: color 200ms var(--ease), transform 200ms var(--ease);
  text-decoration: none;
}
.foot-social a svg {
  width: 32px;
  height: 32px;
  display: block;
}
.foot-social a:hover {
  color: var(--coral-deep);
  transform: translateY(-2px);
}

/* ============================================================
   MODALS
   ============================================================ */
.modal-overlay {
  position: fixed; inset: 0;
  background: color-mix(in oklab, var(--ink) 62%, transparent);
  backdrop-filter: blur(6px);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 240ms var(--ease);
  overflow-y: auto;
}
.modal-overlay.is-open {
  opacity: 1;
  pointer-events: auto;
}
[data-theme="dark"] .modal-overlay {
  background: color-mix(in oklab, #000 75%, transparent);
}

.modal-panel {
  position: relative;
  background: var(--bg);
  border: 1px solid var(--fg-line);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-lift);
  max-width: 780px;
  width: 100%;
  max-height: calc(100vh - 80px);
  overflow-y: auto;
  transform: translateY(20px);
  transition: transform 280ms var(--ease);
}
.modal-overlay.is-open .modal-panel { transform: translateY(0); }

.modal-close {
  position: sticky; top: 16px; float: right; margin-right: 16px;
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--bg-soft);
  border: 1px solid var(--fg-line);
  color: var(--fg);
  font-size: 22px; font-weight: 300;
  line-height: 0;
  cursor: pointer;
  z-index: 3;
  transition: background 180ms var(--ease), color 180ms var(--ease);
  display: inline-flex; align-items: center; justify-content: center;
}
.modal-close:hover { background: var(--coral-deep); color: var(--paper); border-color: var(--coral-deep); }

.modal-inner {
  padding: 56px 56px 48px;
}
.modal-eyebrow {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--fg-faint);
  margin-bottom: 14px;
}
.modal-title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 56px;
  line-height: 0.95;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--fg);
  margin-bottom: 32px;
}
.modal-title em {
  font-family: 'Instrument Serif', Georgia, serif;
  font-style: italic;
  letter-spacing: -0.01em;
  text-transform: none;
  background: var(--grad-sunset);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.modal-body p,
.modal-body ul,
.modal-body h3 {
  margin-bottom: 18px;
}
.modal-body .lead {
  font-family: var(--font-sans);
  font-weight: 300;
  font-size: 19px;
  line-height: 1.55;
  color: var(--fg);
  margin-bottom: 28px;
}
.modal-body h3 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 22px;
  line-height: 1;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--fg);
  margin-top: 32px;
  margin-bottom: 14px;
  padding-top: 20px;
  border-top: 1px solid var(--fg-line);
}
.modal-body p,
.modal-body ul li {
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.6;
  color: var(--fg-soft);
}
.modal-body ul {
  padding-left: 20px;
  list-style: none;
}
.modal-body ul li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 8px;
}
.modal-body ul li::before {
  content: '';
  position: absolute;
  left: 0; top: 11px;
  width: 8px; height: 1.5px;
  background: var(--coral-deep);
}
.modal-body a {
  color: var(--coral-deep);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}
.modal-body a:hover { color: var(--coral); }

.version-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin: 24px 0 28px;
}

.version-card {
  display: block;
  text-decoration: none;
  color: inherit;
  background: var(--bg-soft);
  border: 1px solid var(--fg-line);
  border-radius: var(--r-md);
  padding: 20px;
  transition: transform 220ms var(--ease), box-shadow 220ms var(--ease), border-color 220ms var(--ease);
}

.version-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lift);
  border-color: var(--fg);
}

.version-kicker {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--coral-deep);
  margin-bottom: 10px;
}

.version-card h3 { margin: 0; }
.version-card p { margin: 10px 0 16px; }

.version-link {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--fg);
}

.version-link .arw {
  font-family: var(--font-display);
  font-size: 13px;
  line-height: 1;
}

/* Contact modal specifics */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin: 24px 0 40px;
  padding: 28px;
  background: var(--bg-soft);
  border-radius: var(--r-md);
  border: 1px solid var(--fg-line);
}
.contact-grid .eyebrow,
.contact-row .eyebrow {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--fg-faint);
  margin-bottom: 6px;
}
.contact-grid .big-link,
.contact-grid .big-text,
.contact-row .big-link {
  font-family: var(--font-display);
  font-size: 22px;
  line-height: 1.2;
  letter-spacing: 0.02em;
  color: var(--fg);
  text-decoration: none;
  text-transform: none;
}
.contact-grid .big-link:hover,
.contact-row .big-link:hover {
  color: var(--coral-deep);
}
.contact-row {
  margin-top: 40px;
  padding-top: 28px;
  border-top: 1px solid var(--fg-line);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.contact-form .row-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.contact-form label {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.contact-form .lbl {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--fg-faint);
}
.contact-form input,
.contact-form textarea {
  font-family: var(--font-sans);
  font-size: 15px;
  color: var(--fg);
  background: var(--bg-soft);
  border: 1px solid var(--fg-line);
  border-radius: var(--r-md);
  padding: 12px 14px;
  transition: border-color 180ms var(--ease), background 180ms var(--ease);
}
.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--coral-deep);
  background: var(--bg);
}
.contact-form textarea { resize: vertical; min-height: 120px; }

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 26px;
  background: var(--grad-peachcoral);
  color: var(--ink);
  border: none;
  border-radius: var(--r-pill);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  cursor: pointer;
  align-self: flex-start;
  transition: transform 220ms var(--ease), box-shadow 220ms var(--ease);
  text-decoration: none;
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: var(--shadow-card); }
.btn-primary .arw { transition: transform 220ms var(--ease); }
.btn-primary:hover .arw { transform: translateX(3px); }

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 24px;
  background: transparent;
  color: var(--fg);
  border: 1px solid var(--fg);
  border-radius: var(--r-pill);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition: background 220ms var(--ease), color 220ms var(--ease);
}
.btn-ghost:hover { background: var(--fg); color: var(--bg); }

.contact-form .fine {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--fg-faint);
  margin-top: 4px;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1100px) {
  .site-nav { padding: 16px 32px; grid-template-columns: auto 1fr auto; gap: 20px; }
  .site-nav .nav-links { display: none; }
  .foot-main { grid-template-columns: 1fr 1fr; gap: 40px; }
  .site-foot { padding: 56px 32px 28px; }
}
@media (max-width: 680px) {
  .site-nav .brand-word { display: none; }
  .site-nav .nav-cta { padding: 9px 14px; font-size: 10px; letter-spacing: 0.16em; }
  .foot-main { grid-template-columns: 1fr; }
  .foot-bottom { grid-template-columns: 1fr; text-align: center; gap: 12px; }
  .foot-bottom .foot-version { text-align: center; }
  .modal-inner { padding: 40px 28px 32px; }
  .modal-title { font-size: 40px; }
  .contact-grid { grid-template-columns: 1fr; padding: 20px; }
  .contact-form .row-2 { grid-template-columns: 1fr; }
  .version-grid { grid-template-columns: 1fr; }
}