/* ------------------------------------------------------------------
   Spot Research — an editorial single page
   Design direction: small independent research firm. Paper-warm palette,
   Fraunces display + IBM Plex Sans body, asymmetric two-column grid with
   a marginalia column for section marks. Hairline rules in muted oxblood.
-------------------------------------------------------------------*/

:root {
  /* Warm paper neutrals, tinted toward the oxblood accent */
  --paper:      oklch(0.965 0.012 75);
  --paper-2:    oklch(0.935 0.014 70);
  --ink:        oklch(0.205 0.018 45);
  --ink-2:      oklch(0.40  0.020 45);
  --ink-3:      oklch(0.55  0.018 45);

  /* Single accent — muted oxblood, used only for rules and dots */
  --accent:     oklch(0.43  0.110 25);
  --rule:       oklch(0.43  0.050 25 / 0.22);
  --rule-soft:  oklch(0.43  0.050 25 / 0.10);

  /* Typography */
  --font-display: "Fraunces", ui-serif, Georgia, "Times New Roman", serif;
  --font-sans: "IBM Plex Sans", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;

  /* Layout */
  --page-max:     min(1180px, 100vw);
  --gutter:       clamp(1.25rem, 4vw, 3rem);
  --margin-col:   clamp(6rem, 15vw, 11rem);
  --sec-pad-y:    clamp(5.5rem, 11vw, 9.5rem);

  /* Fluid type */
  --fs-eyebrow:  0.76rem;
  --fs-nav:      0.78rem;
  --fs-body:     1.0625rem;
  --fs-lede:     clamp(1.125rem, 1.1vw + 0.85rem, 1.375rem);
  --fs-h2:       clamp(2.25rem, 4.4vw, 4rem);
  --fs-h3:       1.15rem;
  --fs-display:  clamp(3.75rem, 10.5vw, 9rem);
  --fs-email:    clamp(1.5rem, 3vw, 2.5rem);
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

html {
  hanging-punctuation: first last;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: 1.55;
  color: var(--ink);
  background: var(--paper);
  font-feature-settings: "kern", "ss01", "ss02";
  font-variation-settings: "wght" 400;
}

::selection {
  background: var(--accent);
  color: var(--paper);
}

a { color: inherit; text-decoration: none; }

em {
  font-style: italic;
  font-variation-settings: "SOFT" 100;
}

/* The accent dot. Echoes the "Spot" in the name.
   Shared across masthead, marginalia, email link, colophon. */
.dot {
  display: inline-block;
  width: 0.55em;
  height: 0.55em;
  border-radius: 50%;
  background: var(--accent);
  vertical-align: 0.12em;
  flex-shrink: 0;
}
.dot.small { width: 0.45em; height: 0.45em; }

/* ------------------------------------------------------------------
   Masthead
-------------------------------------------------------------------*/
.masthead {
  max-width: var(--page-max);
  margin: 0 auto;
  padding: clamp(1.4rem, 2.5vw, 2rem) var(--gutter);
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 2rem;
  border-bottom: 1px solid var(--rule-soft);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55em;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 500;
  letter-spacing: -0.005em;
  font-variation-settings: "opsz" 36, "SOFT" 20;
}

.brand-name { white-space: nowrap; }

.nav {
  display: flex;
  gap: clamp(1rem, 3vw, 2.4rem);
  font-size: var(--fs-nav);
  color: var(--ink-2);
  letter-spacing: 0.04em;
}
.nav a { display: inline-flex; align-items: baseline; transition: color 0.2s ease; }
.nav a:hover { color: var(--ink); }
.nav-num {
  font-family: var(--font-display);
  font-feature-settings: "tnum";
  font-style: italic;
  font-weight: 400;
  color: var(--accent);
  font-size: 0.82em;
  letter-spacing: 0;
  margin-right: 0.1em;
}

/* ------------------------------------------------------------------
   Hero
-------------------------------------------------------------------*/
.hero {
  max-width: var(--page-max);
  margin: 0 auto;
  padding: clamp(4rem, 9vw, 7.5rem) var(--gutter) clamp(4rem, 8vw, 7rem);
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2rem, 4vw, 3.5rem);
  border-bottom: 1px solid var(--rule);
  animation: rise 1.1s cubic-bezier(.2,.7,.1,1) both;
}

.eyebrow {
  font-size: var(--fs-eyebrow);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--ink-2);
  margin: 0;
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
}
.eyebrow::before {
  content: "";
  display: inline-block;
  width: 1.75rem;
  height: 1px;
  background: var(--accent);
  opacity: 0.7;
}

h1.display {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: var(--fs-display);
  line-height: 0.94;
  letter-spacing: -0.028em;
  margin: 0;
  font-variation-settings: "opsz" 144, "SOFT" 40;
  max-width: 15ch;
  text-wrap: balance;
}

h1.display em {
  font-variation-settings: "opsz" 144, "SOFT" 100;
  letter-spacing: -0.02em;
}

.hero-aside {
  justify-self: end;
  max-width: 40ch;
  padding-top: 0.5rem;
  border-top: 1px solid var(--rule-soft);
}

.lede {
  font-size: var(--fs-lede);
  line-height: 1.45;
  color: var(--ink-2);
  margin: 1rem 0 0;
  font-weight: 400;
  text-wrap: pretty;
}

/* Desktop: hero lede sits right of center, right-aligned column */
@media (min-width: 860px) {
  .hero {
    grid-template-columns: minmax(0, 1.6fr) minmax(280px, 1fr);
    align-items: end;
    gap: clamp(3rem, 6vw, 6rem);
  }
  .eyebrow { grid-column: 1 / -1; }
  h1.display { grid-column: 1 / 2; }
  .hero-aside { grid-column: 2 / 3; }
}

/* ------------------------------------------------------------------
   Sections — two-column editorial grid
-------------------------------------------------------------------*/
.section {
  max-width: var(--page-max);
  margin: 0 auto;
  padding: var(--sec-pad-y) var(--gutter);
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  border-bottom: 1px solid var(--rule-soft);
  position: relative;
}

@media (min-width: 860px) {
  .section {
    grid-template-columns: var(--margin-col) minmax(0, 1fr);
    gap: clamp(2rem, 5vw, 5rem);
  }
}

.marginalia {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--fs-eyebrow);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--ink-3);
}

.sec-num {
  font-family: var(--font-display);
  font-feature-settings: "tnum";
  font-style: italic;
  font-weight: 400;
  text-transform: none;
  font-size: 1rem;
  letter-spacing: 0;
  color: var(--accent);
}

.sec-label { color: var(--ink-2); }

@media (min-width: 860px) {
  .marginalia {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.6rem;
    padding-top: 0.35rem;
    position: sticky;
    top: 2rem;
    align-self: start;
  }
  .sec-num { font-size: 1.15rem; }
  .marginalia .dot { margin-bottom: 0.4rem; }
}

.section-body > h2 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: var(--fs-h2);
  line-height: 1.02;
  letter-spacing: -0.02em;
  margin: 0 0 1.4em;
  font-variation-settings: "opsz" 96, "SOFT" 40;
  max-width: 18ch;
  text-wrap: balance;
}

.section-body > h2 em {
  font-variation-settings: "opsz" 96, "SOFT" 100;
}

.section-body > p {
  max-width: 58ch;
  font-size: calc(var(--fs-body) + 0.05rem);
  line-height: 1.6;
  color: var(--ink-2);
  margin: 0 0 1.2em;
  text-wrap: pretty;
}

/* ------------------------------------------------------------------
   Capabilities — editorial numbered list, no cards
-------------------------------------------------------------------*/
.capabilities-list {
  list-style: none;
  padding: 0;
  margin: 2.5rem 0 0;
  border-top: 1px solid var(--rule);
}

.capabilities-list li {
  display: grid;
  grid-template-columns: 3.5rem 1fr;
  gap: clamp(1rem, 3vw, 2.5rem);
  padding: clamp(1.6rem, 3vw, 2.4rem) 0;
  border-bottom: 1px solid var(--rule-soft);
  align-items: baseline;
}

.item-num {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
  font-size: 1.4rem;
  line-height: 1;
  color: var(--accent);
  font-variation-settings: "opsz" 72, "SOFT" 100;
  font-feature-settings: "tnum";
}

.item-body h3 {
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: var(--fs-h3);
  letter-spacing: -0.005em;
  margin: 0 0 0.4em;
  color: var(--ink);
}

.item-body p {
  margin: 0;
  color: var(--ink-2);
  font-size: var(--fs-body);
  line-height: 1.55;
  max-width: 52ch;
  text-wrap: pretty;
}

@media (min-width: 860px) {
  .capabilities-list li {
    grid-template-columns: 4rem 1fr;
  }
  .item-num { font-size: 1.6rem; }
}

/* ------------------------------------------------------------------
   Contact email link — reads as editorial type, not a button
-------------------------------------------------------------------*/
.email-link {
  display: inline-flex;
  align-items: baseline;
  gap: 0.55em;
  margin-top: 0.5rem;
  font-family: var(--font-display);
  font-weight: 400;
  font-style: italic;
  font-size: var(--fs-email);
  line-height: 1;
  letter-spacing: -0.015em;
  color: var(--ink);
  font-variation-settings: "opsz" 96, "SOFT" 100;
  padding: 0.15em 0 0.25em;
  border-bottom: 1px solid var(--rule);
  transition: border-color 0.25s ease, color 0.25s ease;
}

.email-link:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.email-link .arrow {
  font-style: normal;
  font-family: var(--font-sans);
  font-weight: 400;
  font-size: 0.7em;
  transition: transform 0.3s cubic-bezier(.2,.7,.1,1);
  color: var(--accent);
}

.email-link:hover .arrow { transform: translateX(0.3em); }

/* ------------------------------------------------------------------
   Colophon
-------------------------------------------------------------------*/
.colophon {
  border-top: 1px solid var(--rule);
  margin-top: 0;
}

.colophon-inner {
  max-width: var(--page-max);
  margin: 0 auto;
  padding: clamp(1.6rem, 3vw, 2.4rem) var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  font-size: var(--fs-eyebrow);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--ink-3);
}

.colophon-left {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--ink-2);
}

.colophon-mid { color: var(--ink-3); }

.colophon-right {
  font-variant-numeric: tabular-nums;
  color: var(--ink-3);
}

/* ------------------------------------------------------------------
   Entrance
-------------------------------------------------------------------*/
@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.hero .eyebrow   { animation: rise 0.9s 0.05s cubic-bezier(.2,.7,.1,1) both; }
.hero h1.display { animation: rise 1.1s 0.22s cubic-bezier(.2,.7,.1,1) both; }
.hero-aside      { animation: rise 0.9s 0.55s cubic-bezier(.2,.7,.1,1) both; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }
}

/* ------------------------------------------------------------------
   Responsive tuning
-------------------------------------------------------------------*/
@media (max-width: 600px) {
  .masthead {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }
  .nav { gap: 1rem; flex-wrap: wrap; }
  .hero-aside { justify-self: stretch; }
  .colophon-inner { font-size: 0.7rem; }
}