/* ============================================================
   DNA INTEGRATIONS — main.css
   Variables, reset, typography, layout, shared components
   ============================================================ */

:root {
  /* Color tokens */
  --bg: #0E3D2C;
  --bg-soft: #164d38;
  --bg-deep: #0a2e20;
  --green: #0E3D2C;
  --green-deep: #062317;
  --green-glow: #1A6948;
   --creme: #F1E9D2;
   --warm-creme: #FFE3B6;
  --neon-green: #D6FE18;
   --ink: #F1E9D2;
  --ink-soft: rgba(241, 233, 210, 0.6);
  --hair: rgba(241, 233, 210, 0.15);
  --hair-strong: rgba(241, 233, 210, 0.3);
  --hair-creme: rgba(241, 233, 210, 0.32);
  --ink-dark: #1a2e1f;
  --ink-dark-soft: rgba(26, 46, 31, 0.65);

  /* Typography */
  --font-display: "Instrument Serif", Georgia, serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "Cascadia Code", Menlo, monospace;

  /* Fluid type scale (clamp(min, fluid, max)) */
  --fs-micro: clamp(0.6875rem, 0.65rem + 0.15vw, 0.75rem);   /* 11→12 */
  --fs-mono:  clamp(0.75rem, 0.7rem + 0.2vw, 0.875rem);      /* 12→14 */
  --fs-body:  clamp(0.95rem, 0.9rem + 0.25vw, 1.0625rem);    /* 15→17 */
  --fs-lede:  clamp(1.05rem, 0.95rem + 0.5vw, 1.375rem);     /* 17→22 */
  --fs-h3:    clamp(1.5rem, 1.1rem + 1.6vw, 2.25rem);        /* 24→36 */
  --fs-h2:    clamp(2.25rem, 1.5rem + 3vw, 4.25rem);         /* 36→68 */
  --fs-h1:    clamp(3.5rem, 1.8rem + 7.5vw, 9rem);           /* 56→144 */

  /* Spacing (8px grid) */
  --s-1: 4px;
  --s-2: 8px;
  --s-3: 16px;
  --s-4: 24px;
  --s-5: 32px;
  --s-6: 48px;
  --s-7: 64px;
  --s-8: 96px;
  --s-9: 128px;
  --s-10: 192px;

  /* Layout */
  --maxw: 1280px;
  --gutter: clamp(1rem, 4vw, 4rem);

  /* Motion */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in:  cubic-bezier(0.4, 0, 1, 1);
  --dur: 200ms;
  --dur-mid: 400ms;
  --dur-slow: 800ms;
}

/* ----- Reset ----- */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.5;
  font-weight: 400;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
img, svg, canvas { display: block; max-width: 100%; }
button, input, select, textarea {
  font: inherit;
  color: inherit;
}
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; padding: 0; margin: 0; }
h1, h2, h3, h4, p { margin: 0; }

/* When loader is active, prevent scroll */
body.is-loading { overflow: hidden; height: 100vh; }

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}

/* ============================================================
   LOADER
   ============================================================ */
#loader {
  position: fixed;
  inset: 0;
  background: var(--bg);
  z-index: 1000;
  display: grid;
  place-items: center;
  transition: opacity 600ms var(--ease), visibility 0s 600ms;
}
#loader.is-hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}
.loader-inner {
  width: min(440px, 80vw);
  display: grid;
  gap: var(--s-4);
  text-align: left;
}
.loader-mark {
  font-family: var(--font-display);
  font-size: clamp(4rem, 14vw, 8rem);
  line-height: 0.85;
  color: var(--creme);
  font-style: italic;
  letter-spacing: -0.04em;
}
.loader-status {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--creme);
}
.loader-pct { font-weight: 500; }
.loader-bar {
  position: relative;
  height: 2px;
  background: var(--hair-strong);
  overflow: hidden;
}
.loader-bar-fill {
  position: absolute;
  inset: 0 100% 0 0;
  background: var(--green);
  transition: right 200ms var(--ease-out);
}
.loader-frames {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--ink-soft);
  text-transform: uppercase;
}

/* ============================================================
   SCROLL PROGRESS BAR
   ============================================================ */
#scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  width: 0;
  background: var(--green);
  z-index: 90;
  pointer-events: none;
  transition: width 80ms linear;
}

/* ============================================================
   TOP NAV
   ============================================================ */
#topnav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 80;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--s-3) var(--gutter);
  pointer-events: none;
  mix-blend-mode: normal;
  transition: backdrop-filter var(--dur) var(--ease), background-color var(--dur) var(--ease);
  background: rgba(173, 173, 173, 0.5);
}
#topnav.is-condensed {
  backdrop-filter: blur(8px) saturate(120%);
  background: rgba(173, 173, 173, 0.5);
  border-bottom: 1px solid var(--hair);
}
#topnav > * { pointer-events: auto; }

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 0.4em;
  font-family: var(--font-display);
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  color: #0E3d3c;
  line-height: 1;
  transition: color var(--dur-mid) var(--ease);
}
.brand-mark {
  font-style: italic;
  font-weight: 400;
  font-size: 1.5em;
}
.brand-word {
  font-style: normal;
  font-size: 1em;
  font-weight: 400;
  position: relative;
  top: -0.05em;
}

.nav-links {
  display: flex;
  gap: var(--s-5);
  font-family: var(--font-mono);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: #0E3d3c;
  transition: color var(--dur-mid) var(--ease);
}
.nav-links a {
  position: relative;
  padding: 4px 0;
  transition: color var(--dur) var(--ease);
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: var(--creme);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur) var(--ease-out);
}
.nav-links a:hover { color: var(--creme); opacity: 0.75; }
.nav-links a:hover::after { transform: scaleX(1); }

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  padding: 10px 18px;
  background: var(--warm-creme);
  color: #0E3d3c;
  border: 1px solid #0E3d3c;
  font-family: var(--font-mono);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  border-radius: 999px;
  transition: transform var(--dur) var(--ease), background var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.nav-cta:hover {
  background: #0E3d3c;
  color: #F1E9D2;
  border-color: #F1E9D2;
  transform: translateY(-1px);
}

/* Past-hero state: text flips to warm-creme so it reads on the dark green bg */
#topnav.is-past-hero .brand,
#topnav.is-past-hero .nav-links {
  color: var(--warm-creme);
}

@media (max-width: 720px) {
  .nav-links { display: none; }
}

/* ============================================================
   SHARED SECTION SCAFFOLDING
   ============================================================ */
main > section {
  position: relative;
  padding: var(--s-9) var(--gutter);
}

main > section:not(#hero) {
  border-top: 1px solid var(--hair);
}

.section-header {
  max-width: var(--maxw);
  margin: 0 auto var(--s-7);
  display: grid;
  gap: var(--s-3);
}
.section-label {
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--creme);
}
.section-title {
  font-family: var(--font-display);
  font-size: var(--fs-h2);
  font-weight: 400;
  line-height: 0.95;
  letter-spacing: -0.025em;
  color: var(--ink);
  max-width: 18ch;
}
.section-lede {
  font-size: var(--fs-lede);
  font-weight: 300;
  line-height: 1.45;
  color: var(--creme);
  max-width: 52ch;
}

/* ============================================================
   BUTTONS
   ============================================================ */
.cta-button {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 18px 32px;
  background: var(--green);
  color: var(--warm-creme);
  border: none;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  cursor: pointer;
  transition: transform var(--dur) var(--ease), background var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.cta-button:hover {
  background: var(--green-deep);
  transform: translateY(-2px);
  box-shadow: 0 14px 30px -16px rgba(6, 35, 23, 0.6);
}
.cta-button:active { transform: translateY(0); }
.cta-button .arrow {
  transition: transform var(--dur) var(--ease-out);
}
.cta-button:hover .arrow {
  transform: translateX(4px);
}

/* ============================================================
   LINKEDIN ICON UTILITY
   ============================================================ */
.linkedin-icon {
  width: 16px;
  height: 16px;
  display: inline-block;
  background-color: currentColor;
  -webkit-mask: url("../assets/linkedin.svg") center / contain no-repeat;
          mask: url("../assets/linkedin.svg") center / contain no-repeat;
  flex-shrink: 0;
}

/* ============================================================
   FOOTER
   ============================================================ */
footer {
  background: var(--green);
  color: var(--creme);
  padding: var(--s-8) var(--gutter) var(--s-5);
  border-top: 1px solid var(--hair-creme);
}
.footer-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: end;
  gap: var(--s-5);
  padding-bottom: var(--s-5);
  border-bottom: 1px solid var(--hair-creme);
}
.footer-brand {
  display: inline-flex;
  align-items: baseline;
  gap: 0.4em;
  font-family: var(--font-display);
  font-size: 2rem;
  line-height: 1;
}
.footer-brand .brand-mark {
  font-style: italic;
}
.footer-tag {
  font-family: var(--font-display);
  font-style: italic;
  font-size: var(--fs-lede);
   color: var(--creme);
  text-align: center;
}
.footer-links {
  display: flex;
  gap: var(--s-3);
  font-family: var(--font-mono);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
}
.footer-links a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--hair-creme);
  border-radius: 999px;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.footer-links a:hover {
  background: rgba(241, 233, 210, 0.08);
   border-color: var(--creme);
}
.footer-copy {
  grid-column: 1 / -1;
  margin-top: var(--s-4);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
   color: var(--creme);
  opacity: 0.75;
}

@media (max-width: 720px) {
  .footer-inner {
    grid-template-columns: 1fr;
    text-align: left;
  }
  .footer-tag { text-align: left; }
}

/* ============================================================
   GENERIC REVEAL UTILITY
   (animations.js targets these)
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  will-change: transform, opacity;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 800ms var(--ease-out), transform 800ms var(--ease-out);
}