/* =========================================================
   DailyBSD — Internal (refero.design inspired)
   Pure black · Electric Iris · Saffron Spark · Deep Verdant
   Satoshi (via Fontshare) · 24px radius · no borders/shadows
   ========================================================= */

:root {
  /* Palette — refero.design tokens */
  --bg:         #000000;
  --bg-raise:   #0a0a0a;
  --surface:    #0f0f10;
  --surface-2:  #141416;

  --text:       #ffffff;
  --text-2:     #bdbdbd;
  --text-3:     #9a9a9a;
  --text-4:     #6b6b6b;

  --iris:       #8052ff;  /* Electric Iris — primary */
  --iris-ink:   #ffffff;
  --iris-dim:   rgba(128,82,255,.14);
  --iris-glow:  rgba(128,82,255,.4);
  --iris-br:    #a378ff;  /* lighter iris for highlights */

  --saffron:    #ffb829;  /* Saffron Spark — emphasis */
  --saffron-br: #ffcf5c;
  --verdant:    #15846e;  /* Deep Verdant — tertiary */
  --verdant-br: #2fa58e;

  --magenta:    #ff6ecd;  /* accent c for data variety */
  --cyan:       #4dd0e1;

  --rose:       #ff5a5a;

  /* Signature gradient */
  --grad-brand: linear-gradient(135deg, var(--iris) 0%, var(--magenta) 50%, var(--saffron) 100%);
  --grad-cool:  linear-gradient(135deg, var(--iris) 0%, var(--cyan) 100%);
  --grad-warm:  linear-gradient(135deg, var(--saffron) 0%, var(--rose) 100%);

  /* Typography */
  --sans:       'Satoshi','Inter','Neue Montreal',ui-sans-serif,system-ui,sans-serif;
  --mono:       'JetBrains Mono','IBM Plex Mono',ui-monospace,monospace;

  /* Rhythm */
  --rad:        24px;
  --rad-sm:     14px;
  --rad-pill:   999px;

  --ease:       cubic-bezier(.2,.7,.2,1);
  --ease-io:    cubic-bezier(.65,.05,.36,1);

  --maxw:       1280px;
  --gutter:     clamp(20px, 5vw, 72px);
  --space:      clamp(60px, 10vw, 120px);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); }
html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  color: var(--text);
  background: var(--bg);
  font-size: 18px;
  font-weight: 200;        /* ultra-light body — refero signature */
  line-height: 1.55;
  letter-spacing: -0.005em;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

::selection { background: var(--iris); color: #fff; }
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }

/* Light theme is intentionally not supported — refero is dark-void */
@media (prefers-color-scheme: light) {
  :root { color-scheme: dark; }
}

/* =========================================================
   NAVIGATION — transparent, no border, no backdrop
   ========================================================= */
.nav {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 90;
  display: flex; align-items: center; justify-content: space-between;
  padding: 28px var(--gutter);
  transition: padding .3s var(--ease);
}
.nav.is-scrolled { padding: 16px var(--gutter); }

.nav__brand {
  display: inline-flex; align-items: center; gap: 12px;
  font-size: 18px; font-weight: 500;
  letter-spacing: -.015em;
}
.nav__brand-mark {
  display: inline-flex; width: 32px; height: 32px;
  align-items: center; justify-content: center;
  color: var(--iris);
  background: var(--iris-dim);
  border-radius: var(--rad-pill);
}
.nav__brand-word em { color: var(--iris); font-style: normal; font-weight: 500; }

.nav__links {
  display: flex; gap: 36px;
  font-size: 14px; font-weight: 600;
  text-transform: uppercase; letter-spacing: .06em;
  color: var(--text-3);
}
.nav__links a { transition: color .2s var(--ease); }
.nav__links a:hover { color: var(--text); }

.nav__cta { display: inline-flex; gap: 10px; }

@media (max-width: 820px) {
  .nav__links { display: none; }
}

/* =========================================================
   BUTTONS — pill, filled or bare text
   ========================================================= */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 22px;
  font: 600 13px/1 var(--sans);
  letter-spacing: .04em; text-transform: uppercase;
  border: 0;
  border-radius: var(--rad-pill);
  cursor: pointer;
  transition: all .3s var(--ease);
  white-space: nowrap;
}
.btn--lg { padding: 16px 28px; font-size: 14px; }

.btn--primary {
  background: var(--iris);
  color: var(--iris-ink);
  box-shadow: 0 0 0 0 rgba(128,82,255,.4);
  transition: all .3s var(--ease), box-shadow .4s var(--ease);
}
.btn--primary:hover {
  background: var(--iris-br);
  transform: translateY(-1px);
  box-shadow: 0 10px 30px -8px rgba(128,82,255,.5),
              0 0 0 4px rgba(128,82,255,.15);
}

.btn--ghost {
  background: transparent;
  color: var(--text);
  padding: 12px 0;
  border-radius: 0;
}
.btn--ghost::after {
  content: "→"; margin-left: 10px;
  transition: transform .3s var(--ease);
}
.btn--ghost:hover::after { transform: translateX(4px); }

/* =========================================================
   TYPE SCALE — oversized, airy
   ========================================================= */
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font: 600 13px/1 var(--sans);
  letter-spacing: .14em; text-transform: uppercase;
  color: var(--text-3);
}
.eyebrow i {
  width: 6px; height: 6px; background: var(--iris);
  border-radius: 999px;
}

.display {
  font-weight: 400;
  font-size: clamp(48px, 7.5vw, 113px);
  line-height: .96;
  letter-spacing: -.035em;
  margin: 0;
}
.display em {
  background: var(--grad-brand);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  background-size: 200% auto;
  animation: gradShift 8s ease-in-out infinite;
  font-style: normal;
}
.display .saffron { color: var(--saffron); }
.display .mute { color: var(--text-3); }

@keyframes gradShift {
  0%, 100% { background-position: 0% 50%; }
  50%      { background-position: 100% 50%; }
}

.h2 {
  font-weight: 400;
  font-size: clamp(40px, 5.5vw, 78px);
  line-height: 1;
  letter-spacing: -.03em;
  margin: 0;
}
.h2 em { color: var(--iris); font-style: normal; }

.lead {
  font-size: clamp(18px, 1.3vw, 22px);
  font-weight: 200;
  color: var(--text-2);
  line-height: 1.5;
  max-width: 60ch;
}

.label {
  font: 600 12px/1 var(--sans);
  letter-spacing: .14em; text-transform: uppercase;
  color: var(--text-3);
}

.num {
  font-family: var(--mono);
  font-weight: 400;
  letter-spacing: -.01em;
}

/* =========================================================
   SECTION
   ========================================================= */
.section {
  padding: var(--space) var(--gutter);
  max-width: var(--maxw);
  margin: 0 auto;
}
.section--pt0 { padding-top: 0; }

.section__head {
  display: grid; grid-template-columns: 1fr; gap: 24px;
  margin-bottom: 72px;
  max-width: 820px;
}

/* =========================================================
   HERO
   ========================================================= */
.hero {
  position: relative;
  min-height: 100vh;
  padding: 180px var(--gutter) 100px;
  display: flex; align-items: center;
}
.hero__inner {
  position: relative;
  z-index: 2;
  max-width: var(--maxw);
  margin: 0 auto; width: 100%;
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 60px;
  align-items: end;
}
@media (max-width: 920px) {
  .hero__inner { grid-template-columns: 1fr; }
}

.hero__badge {
  margin-bottom: 32px;
  display: inline-flex; align-items: center; gap: 10px;
  font: 600 12px/1 var(--sans);
  letter-spacing: .14em; text-transform: uppercase;
  color: var(--text-3);
}
.hero__badge-dot {
  width: 7px; height: 7px; border-radius: 999px;
  background: var(--saffron);
  animation: pulse 2s infinite;
}
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.3} }

.hero__title {
  margin: 0 0 44px;
}

.hero__ctas {
  display: inline-flex; gap: 20px; align-items: center; flex-wrap: wrap;
}

.hero__meta {
  display: grid; gap: 28px;
  padding-bottom: 20px;
}
.hero__meta-row {
  display: grid; grid-template-columns: 1fr auto;
  gap: 20px; align-items: baseline;
  padding-bottom: 20px;
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.hero__meta-row:last-child { border: 0; padding-bottom: 0; }
.hero__meta-label {
  font: 600 11px/1.3 var(--sans);
  letter-spacing: .14em; text-transform: uppercase;
  color: var(--text-3);
}
.hero__meta-val {
  font-size: 20px; font-weight: 400;
  color: var(--text);
  font-family: var(--mono);
  letter-spacing: -.02em;
}
.hero__meta-val .u { color: var(--text-3); font-size: 13px; margin-left: 4px; }

.hero__bg {
  position: absolute; inset: 0; z-index: 0; pointer-events: none;
  overflow: hidden;
}
.hero__bg::before {
  content: ""; position: absolute;
  top: -30%; right: -20%;
  width: 70vw; height: 70vw;
  background: radial-gradient(circle at center, var(--iris-dim), transparent 65%);
  filter: blur(40px);
}
.hero__bg::after {
  content: ""; position: absolute;
  bottom: -40%; left: -20%;
  width: 60vw; height: 60vw;
  background: radial-gradient(circle at center, rgba(21,132,110,.12), transparent 65%);
  filter: blur(40px);
}

/* Canvas particle brain-globe */
.hero__canvas {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  display: block;
  z-index: 0;
  pointer-events: auto;
}
.hero__inner { position: relative; z-index: 1; }

/* =========================================================
   DISCIPLINE SECTION — zigzag asymmetric
   ========================================================= */
.disc {
  padding: var(--space) var(--gutter);
}
.disc__grid {
  max-width: var(--maxw); margin: 0 auto;
  display: grid; gap: 100px;
}

.disc__item {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}
.disc__item--rev > :first-child { order: 2; }

@media (max-width: 820px) {
  .disc__item, .disc__item--rev { grid-template-columns: 1fr; gap: 32px; }
  .disc__item--rev > :first-child { order: 0; }
}

.disc__num {
  font: 500 13px/1 var(--mono);
  color: var(--iris);
  letter-spacing: .14em;
  margin-bottom: 32px;
}
.disc__title {
  font-size: clamp(32px, 4.4vw, 56px);
  font-weight: 400;
  line-height: 1.02;
  letter-spacing: -.025em;
  margin: 0 0 20px;
}
.disc__title em { color: var(--saffron); font-style: italic; font-weight: 400; }
.disc__body {
  color: var(--text-2);
  font-size: 18px; font-weight: 200;
  line-height: 1.55;
  margin: 0;
}

.disc__viz {
  padding-top: 40px;
}

/* visual cards — no border, flat, large radius */
.spec {
  background: var(--surface);
  border-radius: var(--rad);
  padding: 32px;
}

.spec__row {
  display: grid; grid-template-columns: 1fr auto;
  gap: 24px; align-items: baseline;
  padding: 14px 0;
}
.spec__row + .spec__row { border-top: 1px solid rgba(255,255,255,.06); }

.spec__label { color: var(--text-3); font-size: 13px; letter-spacing: .02em; }
.spec__val   { color: var(--text); font-family: var(--mono); font-size: 15px; }
.spec__val b { color: var(--iris); font-weight: 400; }
.spec__val .u { color: var(--text-3); font-size: 12px; margin-left: 4px; }

/* mini bar */
.bar { height: 2px; background: rgba(255,255,255,.08); border-radius: 999px; overflow: hidden; margin-top: 12px; }
.bar i { display: block; height: 100%; background: var(--iris); width: var(--w, 0); transition: width 1.2s var(--ease) var(--d,0s); }
.spec.is-in .bar i { width: var(--w, 0); }

/* =========================================================
   AREAS BAND — big typography list
   ========================================================= */
.areas {
  padding: var(--space) var(--gutter);
  background: var(--bg-raise);
  border-radius: 48px;
  margin: 0 var(--gutter);
}
@media (max-width: 820px) { .areas { margin: 0 12px; border-radius: 32px; } }

.areas__inner { max-width: var(--maxw); margin: 0 auto; }

.areas__list { display: flex; flex-direction: column; gap: 0; }
.areas__row {
  display: grid;
  grid-template-columns: 60px 1fr 160px 180px 60px;
  gap: 24px; align-items: center;
  padding: 32px 0;
  border-bottom: 1px solid rgba(255,255,255,.06);
  transition: padding .3s var(--ease);
}
.areas__row:last-child { border-bottom: 0; }
.areas__row:hover { padding-left: 20px; padding-right: 20px; }

@media (max-width: 820px) {
  .areas__row {
    grid-template-columns: 40px 1fr auto;
    gap: 14px;
    padding: 20px 0;
  }
  .areas__row .areas__sub, .areas__row .areas__acc { display: none; }
}

.areas__num { font: 500 13px/1 var(--mono); color: var(--text-3); letter-spacing: .1em; }
.areas__name {
  font-size: clamp(28px, 3.3vw, 40px);
  font-weight: 400;
  letter-spacing: -.025em;
  line-height: 1;
}
.areas__sub { color: var(--text-3); font-size: 14px; font-weight: 200; max-width: 220px; line-height: 1.4; }
.areas__acc { color: var(--text); font-family: var(--mono); font-size: 15px; text-align: right; }
.areas__acc small { color: var(--text-3); display: block; font-size: 11px; letter-spacing: .1em; text-transform: uppercase; margin-bottom: 4px; }
.areas__arr { color: var(--text-3); font-size: 24px; text-align: right; transition: all .3s var(--ease); }
.areas__row:hover .areas__arr { color: var(--iris); transform: translateX(4px); }

/* =========================================================
   KPI STATS — big numbers, airy
   ========================================================= */
.kpi-band {
  padding: var(--space) var(--gutter);
  max-width: var(--maxw); margin: 0 auto;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 60px;
}
@media (max-width: 820px) { .kpi-band { grid-template-columns: repeat(2,1fr); gap: 40px; } }
@media (max-width: 480px) { .kpi-band { grid-template-columns: 1fr; } }

.kpi-stat {}
.kpi-stat__num {
  font-size: clamp(48px, 5vw, 72px);
  font-weight: 400;
  line-height: 1;
  letter-spacing: -.03em;
  color: var(--text);
  margin-bottom: 16px;
}
.kpi-stat__num em { color: var(--iris); font-style: normal; }
.kpi-stat__num .u { font-size: .4em; color: var(--text-3); font-family: var(--mono); margin-left: 6px; letter-spacing: 0; }
.kpi-stat__label {
  font: 600 12px/1.3 var(--sans);
  text-transform: uppercase; letter-spacing: .14em;
  color: var(--text-3);
  max-width: 180px;
}

/* =========================================================
   CTA
   ========================================================= */
.cta {
  padding: var(--space) var(--gutter);
  max-width: var(--maxw); margin: 0 auto;
  text-align: center;
}
.cta__title {
  font-size: clamp(44px, 7vw, 92px);
  font-weight: 400;
  line-height: 1;
  letter-spacing: -.03em;
  margin: 0 0 32px;
}
.cta__title em { color: var(--iris); font-style: normal; }
.cta__ctas { display: inline-flex; gap: 20px; flex-wrap: wrap; justify-content: center; }

/* =========================================================
   FOOTER
   ========================================================= */
.foot {
  padding: 60px var(--gutter);
  max-width: var(--maxw); margin: 0 auto;
  display: flex; justify-content: space-between; align-items: baseline;
  flex-wrap: wrap; gap: 20px;
  color: var(--text-3);
  font-size: 13px;
  font-weight: 200;
}
.foot em { color: var(--iris); font-style: normal; }

/* =========================================================
   REVEAL ANIMATIONS (used in animations.css)
   ========================================================= */
[data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .9s var(--ease), transform .9s var(--ease);
  transition-delay: var(--d, 0s);
}
[data-reveal].is-in { opacity: 1; transform: translateY(0); }