/* GeoDataMind landing page — hand-written CSS, no build step.
   Visual language modelled on bridgemind.ai: dark "void" ground, warm snow text,
   Sora display + Inter body, rounded uppercase pill buttons, translucent nav. */

:root {
  /* palette lifted from bridgemind.ai: void ground, warm snow, ash, bridge blue */
  --void:        #0a0a0a;
  --void-raise:  #0d0e11;
  --void-card:   #131417;
  --snow:        #fffdf6;
  --snow-2:      #fff6e2;
  --lavender:    #c9d1fc;
  --ash:         #a1a1a1;
  --edge:        rgba(255, 253, 246, 0.10);
  --edge-strong: rgba(255, 253, 246, 0.22);

  --blue:        #2f7bf6;
  --blue-deep:   #1f5fd0;
  --clay:        #d97757;
  --mint:        #7fd7b8;

  --maxw: 1200px;
  --pad:  clamp(1.25rem, 4vw, 2rem);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

body {
  margin: 0;
  background: var(--void);
  color: var(--snow);
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: "Sora", "Inter", system-ui, sans-serif;
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--snow);
}
strong { font-weight: 600; color: var(--snow); }
em { font-style: italic; color: var(--mint); }

a { color: inherit; }

.wrap {
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--pad);
}

.skip {
  position: absolute;
  left: -999px;
}
.skip:focus {
  left: 1rem;
  top: 1rem;
  z-index: 100;
  background: var(--snow);
  color: var(--void);
  padding: 0.5rem 1rem;
  border-radius: 999px;
}

section[id] { scroll-margin-top: 5rem; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  border-radius: 999px;
  padding: 0.6rem 1.15rem;
  font-family: "Inter", sans-serif;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  white-space: nowrap;
  border: 1px solid transparent;
  transition: transform 0.2s var(--ease), background 0.2s var(--ease),
              border-color 0.2s var(--ease), box-shadow 0.2s var(--ease),
              filter 0.2s var(--ease);
}
.btn:active { transform: scale(0.98); }
.btn--lg { padding: 0.85rem 1.5rem; font-size: 0.78rem; }

.btn--primary {
  background: var(--blue-deep);
  color: var(--snow);
}
.btn--primary:hover {
  filter: brightness(1.12);
  box-shadow: 0 8px 30px -6px rgba(47, 123, 246, 0.55);
}
.btn--ghost {
  border-color: var(--edge-strong);
  color: var(--snow);
}
.btn--ghost:hover {
  border-color: rgba(244, 242, 236, 0.5);
  background: rgba(244, 242, 236, 0.06);
}

/* ---------- brand mark: electrified globe ---------- */
/* lightning crawls the perimeter the way it crawls the pricing card border
   on bridgemind.ai: a faint glowing ring, plus short bolt segments that
   travel around it. Jagged path length = 425 units. */
.brand {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  line-height: 0;
}
.brand__mark {
  position: relative;
  display: block;
  width: 42px; height: 42px;
  isolation: isolate;
}
.brand__mark img {
  position: absolute;
  top: 50%; left: 50%;
  width: 30px; height: 30px;
  margin: -15px 0 0 -15px;
  border-radius: 50%;
  z-index: 1;
  filter: saturate(1.3) contrast(1.06) drop-shadow(0 0 5px rgba(90, 170, 255, 0.5));
}
.brand__bolts {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  overflow: visible;
  z-index: 2;
}
.brand__bolt { stroke-dasharray: 34 391; }
.brand__bolt--halo { opacity: 0.5; }
.brand__bolt--gold { opacity: 0.9; }
.brand:hover .brand__mark img { filter: saturate(1.5) contrast(1.1) drop-shadow(0 0 9px rgba(120, 190, 255, 0.75)); }

@media (prefers-reduced-motion: no-preference) {
  .brand__ring       { animation: brand-ringpulse 2.6s ease-in-out infinite; }
  .brand__bolt--halo { animation: brand-crawl 2.6s linear infinite; }
  .brand__bolt--blue { animation: brand-crawl 2.6s linear infinite; }
  .brand__bolt--gold { animation: brand-crawl 2.6s linear infinite; animation-delay: -1.3s; }

  @keyframes brand-crawl {
    from { stroke-dashoffset: 0; }
    to   { stroke-dashoffset: -425; }
  }
  @keyframes brand-ringpulse {
    0%, 100% { opacity: 0.5; }
    50%      { opacity: 1; }
  }
}

/* ---------- wordmark ---------- */
.wordmark {
  font-family: "Sora", sans-serif;
  font-weight: 700;
  font-size: 1.35rem;
  letter-spacing: -0.02em;
  text-decoration: none;
}
.wordmark--sm { font-size: 1.05rem; }
.wordmark__geo  { color: var(--snow); }
.wordmark__data { color: var(--blue); }
.wordmark__mind { color: var(--ash); }

/* ---------- nav ---------- */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  background: rgba(10, 11, 13, 0.7);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--edge);
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  height: 4rem;
}
.nav__links {
  display: flex;
  gap: 0.25rem;
}
.nav__links a {
  padding: 0.5rem 0.8rem;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--ash);
  text-decoration: none;
  transition: color 0.2s var(--ease), background 0.2s var(--ease);
}
.nav__links a:hover { color: var(--snow); background: rgba(244, 242, 236, 0.06); }
.nav__cta { display: flex; gap: 0.5rem; }

/* ---------- hero ---------- */
/* clean hero: copy only, nothing competing with it */
.hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-block: clamp(8rem, 16vw, 11rem) clamp(5rem, 11vw, 8rem);
  background: radial-gradient(70% 60% at 20% 0%, rgba(47, 123, 246, 0.07), transparent 70%);
}
.hero__inner { position: relative; z-index: 1; }
.eyebrow {
  margin: 0 0 1.25rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ash);
}
.hero__title {
  margin: 0 0 1.5rem;
  font-size: clamp(2.5rem, 7vw, 4.6rem);
  font-weight: 600;
  line-height: 1.02;
  letter-spacing: -0.035em;
  max-width: 18ch;
}
.hero__title span { color: var(--lavender); }
.hero__lede {
  margin: 0 0 2rem;
  font-size: clamp(1.05rem, 2.2vw, 1.25rem);
  line-height: 1.55;
  color: var(--ash);
  max-width: 48ch;
}
.hero__actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 2.25rem; }

/* ---------- equation ---------- */
.equation {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.7rem;
  margin: 0;
  font-family: "Sora", sans-serif;
  font-weight: 600;
  font-size: clamp(0.85rem, 2vw, 1.05rem);
  letter-spacing: 0.02em;
}
.equation span {
  padding: 0.5rem 1rem;
  border: 1px solid var(--edge-strong);
  border-radius: 999px;
  background: rgba(244, 242, 236, 0.03);
}
.equation i { font-style: normal; color: var(--ash); }
.equation b { color: var(--blue); font-size: 1.35em; }
.equation__out {
  background: var(--blue-deep) !important;
  border-color: var(--blue-deep) !important;
  box-shadow: 0 8px 30px -10px rgba(47, 123, 246, 0.55);
}

/* ---------- bands ---------- */
.band {
  padding-block: clamp(3.5rem, 9vw, 6rem);
  border-top: 1px solid var(--edge);
}
.band--raise { background: var(--void-raise); }

.section-title { margin: 0 0 0.75rem; font-size: clamp(1.6rem, 4.5vw, 2.5rem); font-weight: 700; }
.section-intro { margin: 0 0 2.5rem; color: var(--ash); max-width: 54ch; font-size: 1.05rem; }

.prose h2 { margin: 0 0 1.25rem; font-size: clamp(1.6rem, 4.5vw, 2.5rem); font-weight: 700; }
.prose p { margin: 0 0 1.15rem; max-width: 64ch; color: var(--ash); }
.prose p strong { color: var(--snow); }

/* ---------- cards ---------- */
.cards { display: grid; gap: 1rem; }
.cards--3 { grid-template-columns: repeat(3, 1fr); }

.card {
  position: relative;
  padding: 1.6rem 1.5rem;
  border: 1px solid var(--edge);
  border-radius: 16px;
  background: var(--void-card);
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease);
}
.card:hover { border-color: var(--edge-strong); transform: translateY(-2px); }
.card--plain { background: transparent; }
.card--plain:hover { transform: none; }
.card__idx {
  font-family: "Sora", sans-serif;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--blue);
}
.card h3 { margin: 0.4rem 0 0.6rem; font-size: 1.2rem; font-weight: 600; }
.card p { margin: 0 0 0.6rem; color: var(--ash); font-size: 0.97rem; }
.card p:last-child { margin-bottom: 0; }
.card__note {
  margin-top: 0.9rem !important;
  padding-top: 0.7rem;
  border-top: 1px solid var(--edge);
  color: var(--snow) !important;
}

.arrow-note {
  margin: 2rem 0 0;
  font-family: "Sora", sans-serif;
  font-weight: 600;
  letter-spacing: 0.04em;
}
.arrow-note b { color: var(--blue); font-size: 1.3em; margin-right: 0.45rem; }

/* ---------- flow diagram ---------- */
.flow {
  position: relative;
  isolation: isolate;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding-block: 1.5rem;
}
/* the light scene lives behind the diagram */
.flow__fx {
  position: absolute; inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}
.flow-svg { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.gdm-flare { mix-blend-mode: screen; transform-box: fill-box; transform-origin: 50% 0%; }
.gdm-basebloom, .gdm-warmbloom { transform-box: fill-box; transform-origin: 50% 100%; }

/* Motion vocabulary from bridgemind.ai: glow-pulse, flare-shimmer,
   aurora-drift, seam-spark. The flare runs on the same 3.2s clock as the
   shaft, so the spectrum breathes with the singular light above it. */
@media (prefers-reduced-motion: no-preference) {
  .gdm-beam      { animation: gdm-glowpulse 3.2s ease-in-out infinite; }
  .gdm-filaments { animation: gdm-flicker 4.6s ease-in-out infinite; }
  .gdm-packet    { animation: gdm-fall 3.2s cubic-bezier(0.45, 0, 0.7, 1) infinite; }
  .gdm-flare     { animation: gdm-flareshimmer 3.2s ease-in-out infinite; }
  .gdm-sheen     { animation: gdm-sheenrun 3.2s ease-in-out infinite; }
  .gdm-basebloom { animation: gdm-auroradrift 3.2s ease-in-out infinite; }
  .gdm-warmbloom { animation: gdm-glowpulse 3.2s ease-in-out infinite; }

  @keyframes gdm-glowpulse {
    0%, 100% { opacity: 0.82; transform: scale(1); }
    50%      { opacity: 1;    transform: scale(1.04); }
  }
  @keyframes gdm-flareshimmer {
    0%, 100% { opacity: 0.82; transform: scaleX(1) scaleY(1); }
    30%      { opacity: 1;    transform: scaleX(1.04) scaleY(1.06); }
    65%      { opacity: 0.76; transform: scaleX(0.98) scaleY(0.95); }
  }
  @keyframes gdm-auroradrift {
    0%, 100% { opacity: 0.85; transform: scaleX(1) scaleY(1); }
    50%      { opacity: 1;    transform: scaleX(1.12) scaleY(1.04); }
  }
  @keyframes gdm-fall {
    0%   { transform: translateY(-190px); opacity: 0; }
    14%  { opacity: 0.95; }
    76%  { opacity: 0.95; }
    100% { transform: translateY(330px); opacity: 0; }
  }
  @keyframes gdm-sheenrun {
    0%   { transform: translateX(0);      opacity: 0; }
    16%  { opacity: 0.8; }
    80%  { opacity: 0.8; }
    100% { transform: translateX(1620px); opacity: 0; }
  }
  @keyframes gdm-flicker {
    0%, 100% { opacity: 0.42; }
    40%      { opacity: 0.64; }
    70%      { opacity: 0.34; }
  }
}

.flow__tier { position: relative; z-index: 1; display: flex; flex-wrap: wrap; gap: 0.75rem; justify-content: center; width: 100%; }
.flow__link { position: relative; z-index: 1; padding-block: 0.5rem; color: var(--ash); font-size: 1rem; line-height: 1; }
.node {
  padding: 0.75rem 1.15rem;
  border: 1px solid var(--edge-strong);
  border-radius: 12px;
  background: var(--void-card);
  font-weight: 500;
  font-size: 0.96rem;
  flex: 0 1 auto;
}
.flow__tier--3 .node { flex: 1 1 12rem; max-width: 17rem; }
.node--accent { background: var(--blue-deep); border-color: var(--blue-deep); font-weight: 600; box-shadow: 0 8px 30px -12px rgba(47,123,246,0.6); }

/* ---------- progression ---------- */
.progression { background: var(--void); }
.progression__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
  font-family: "Sora", sans-serif;
  font-weight: 500;
  font-size: clamp(1.15rem, 3vw, 1.7rem);
  color: var(--ash);
}
.progression__k { color: var(--mint); font-weight: 700; }

/* ---------- problem ---------- */
.pain { list-style: none; margin: 0; padding: 0; display: grid; gap: 0; }
.pain li {
  display: flex;
  gap: 1.25rem;
  align-items: baseline;
  padding: 1.25rem 0;
  border-top: 1px solid var(--edge);
}
.pain li:last-child { border-bottom: 1px solid var(--edge); }
.pain__n {
  font-family: "Sora", sans-serif;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--blue);
  flex: 0 0 auto;
}
.pain p { margin: 0; color: var(--ash); font-size: 1.05rem; max-width: 62ch; }
.pain__kicker {
  margin: 2rem 0 0;
  font-family: "Sora", sans-serif;
  font-size: clamp(1.15rem, 3vw, 1.6rem);
  font-weight: 600;
  color: var(--snow);
}

/* ---------- proof chips ---------- */
.chips { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 0.6rem; }
.chip {
  padding: 0.5rem 1rem;
  border: 1px solid var(--edge-strong);
  border-radius: 999px;
  background: rgba(244, 242, 236, 0.03);
  font-size: 0.92rem;
  color: var(--snow);
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
}
.chip:hover { border-color: rgba(47, 123, 246, 0.7); background: rgba(47, 123, 246, 0.10); }

/* ---------- early access ---------- */
.access {
  position: relative;
  border-bottom: 1px solid var(--edge);
  background:
    radial-gradient(60% 120% at 50% 0%, rgba(47, 123, 246, 0.16), transparent 70%),
    var(--void-raise);
}
.access__inner { text-align: center; max-width: 720px; margin-inline: auto; }
.access .eyebrow { color: var(--blue); }
.access h2 { margin: 0 0 0.9rem; font-size: clamp(1.8rem, 5vw, 2.9rem); font-weight: 700; }
.access__lede { margin: 0 auto 2.25rem; color: var(--ash); max-width: 56ch; }

.signup { margin: 0 auto; max-width: 560px; text-align: left; }
.signup__label {
  display: block;
  margin-bottom: 0.5rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ash);
}
.signup__row { display: flex; flex-wrap: wrap; gap: 0.6rem; }
.signup__input {
  flex: 1 1 16rem;
  min-width: 0;
  padding: 0.85rem 1.15rem;
  border: 1px solid var(--edge-strong);
  border-radius: 999px;
  background: rgba(10, 11, 13, 0.6);
  color: var(--snow);
  font-family: inherit;
  font-size: 1rem;
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.signup__input::placeholder { color: #6d7681; }
.signup__input:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 4px rgba(47, 123, 246, 0.18);
}
.signup__note { margin: 0.9rem 0 0; font-size: 0.88rem; color: var(--ash); }
.signup__note--warn { color: #ff9a8a; }
.signup__note--ok { color: var(--mint); }

/* ---------- footer ---------- */
.site-footer { padding-block: 2.5rem; background: var(--void); border-top: 1px solid var(--edge); }
.site-footer__inner { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 0.75rem; }
.site-footer__note { margin: 0; color: var(--ash); font-size: 0.88rem; }
.site-footer .wordmark__mind { color: var(--ash); }

/* ---------- responsive ---------- */
@media (max-width: 960px) {
  .nav__links { display: none; }
}
@media (max-width: 720px) {
  .cards--3 { grid-template-columns: 1fr; }
  .flow__tier--3 { flex-direction: column; align-items: stretch; }
  .flow__tier--3 .node { max-width: none; }
  .nav__cta .btn--ghost { display: none; }
}