/* ============================================================
   ARTEMIS QUANTITATIVE — DESIGN SYSTEM
   Dark / Linear aesthetic · DM Sans + Inter + JetBrains Mono
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=DM+Sans:opsz,wght@9..40,300;9..40,400;9..40,500;9..40,600;9..40,700&family=Inter:wght@300;400;500;600&family=JetBrains+Mono:wght@400;500&display=swap');

/* — TOKENS — */
:root {
  --bg-0:          #05080e;
  --bg-1:          #080c14;
  --bg-2:          #0d1420;
  --bg-3:          #121c2e;
  --border:        #182236;
  --border-up:     #1f2f48;
  --text-1:        #edf0fa;
  --text-2:        #7b8daa;
  --text-3:        #42536e;
  --accent:        #4b7afa;
  --accent-h:      #6b94ff;
  --accent-dim:    #0b1d47;
  --accent-border: #1a3a8a;
  --red-dim:       rgba(248, 113, 113, 0.15);
  --green-dim:     rgba(52, 211, 153, 0.15);

  --r:             4px;
  --r-lg:          10px;
  --max-w:         1100px;
  --py:            96px;

  --font-d: 'DM Sans', sans-serif;
  --font-b: 'Inter', sans-serif;
  --font-m: 'JetBrains Mono', monospace;
}

/* — RESET — */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg-0);
  color: var(--text-1);
  font-family: var(--font-b);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

/* — LAYOUT — */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 28px; }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 20px; }

/* — TYPE SCALE — */
h1, h2, h3, h4 {
  font-family: var(--font-d);
  letter-spacing: -0.025em;
  line-height: 1.12;
}
h1 { font-size: clamp(34px, 5vw, 58px); font-weight: 600; }
h2 { font-size: clamp(26px, 4vw, 42px); font-weight: 600; }
h3 { font-size: clamp(17px, 2vw, 22px); font-weight: 600; }
h4 { font-size: 15px; font-weight: 600; letter-spacing: -0.01em; }
p  { color: var(--text-2); line-height: 1.7; }

/* Signature element: monospace labels throughout */
.label {
  display: block;
  font-family: var(--font-m);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 20px;
}
.label--accent { color: var(--accent); }

/* — BUTTONS — */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-b);
  font-size: 14px;
  font-weight: 500;
  padding: 10px 20px;
  border-radius: var(--r);
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
  border: none;
}
.btn-primary  { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-h); transform: translateY(-1px); }
.btn-outline  { border: 1px solid var(--border-up); color: var(--text-1); background: transparent; }
.btn-outline:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-dim); }
.btn-ghost    { color: var(--text-2); background: transparent; padding: 0; font-size: 14px; }
.btn-ghost:hover { color: var(--accent); }

/* — NAVIGATION — */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(5, 8, 14, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.nav__inner {
  display: flex; align-items: center;
  justify-content: space-between;
  height: 64px;
}
.nav__logo {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-d);
  font-size: 15px; font-weight: 600;
  color: var(--text-1);
  flex-shrink: 0;
}
.nav__mark-img {
  height: 38px; width: auto; display: block; flex-shrink: 0;
}
.nav__links {
  display: flex; align-items: center;
  gap: 2px; list-style: none;
}
.nav__links a {
  font-size: 13.5px; color: var(--text-2);
  padding: 6px 13px; border-radius: var(--r);
  transition: color 0.15s;
}
.nav__links a:hover,
.nav__links a.active { color: var(--text-1); }
.nav__links .nav__cta { margin-left: 6px; }
.nav__burger {
  display: none; flex-direction: column;
  gap: 5px; padding: 8px; cursor: pointer; background: none; border: none;
}
.nav__burger span {
  display: block; width: 22px; height: 1.5px;
  background: var(--text-2); border-radius: 2px;
  transition: all 0.2s;
}
.nav__mobile {
  display: none; flex-direction: column;
  padding: 12px 28px 20px; gap: 0;
  border-top: 1px solid var(--border);
}
.nav__mobile.open { display: flex; }
.nav__mobile a {
  font-size: 15px; color: var(--text-2);
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  display: block;
}
.nav__mobile a:last-child { border: none; }
.nav__mobile a:hover { color: var(--text-1); }
.nav__mobile .btn { margin-top: 16px; justify-content: center; }

/* — TICKER (signature element) — */
.ticker {
  border-bottom: 1px solid var(--border);
  background: var(--bg-1);
  height: 36px; overflow: hidden;
  display: flex; align-items: center;
}
.ticker__track {
  display: flex; white-space: nowrap;
  animation: scroll-ticker 35s linear infinite;
}
.ticker__item {
  font-family: var(--font-m);
  font-size: 11px; color: var(--text-3);
  padding: 0 28px;
  display: inline-flex; align-items: center; gap: 8px;
}
.ticker__item em { color: var(--accent); font-style: normal; }
.ticker__dot { color: var(--border-up); }
@keyframes scroll-ticker {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}
@media (prefers-reduced-motion: reduce) {
  .ticker__track { animation: none; }
}

/* — HERO — */
.hero {
  padding: 100px 0 96px;
  position: relative; overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(ellipse 70% 55% at 50% -5%, rgba(75,122,250,0.09) 0%, transparent 60%),
    radial-gradient(ellipse 35% 35% at 85% 55%, rgba(75,122,250,0.05) 0%, transparent 55%);
}
.hero__inner { position: relative; }
.hero__h1 { max-width: 780px; margin-bottom: 22px; }
.hero__sub {
  font-size: 17px; max-width: 560px;
  color: var(--text-2); margin-bottom: 44px; line-height: 1.65;
}

/* Home page fork cards */
.hero__fork {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 14px; max-width: 700px;
}
.fork-card {
  display: flex; flex-direction: column; gap: 7px;
  padding: 24px; border-radius: var(--r-lg);
  background: var(--bg-2); border: 1px solid var(--border);
  transition: all 0.2s;
}
.fork-card:hover {
  border-color: var(--accent-border);
  background: var(--bg-3);
  transform: translateY(-2px);
}
.fork-card__tag {
  font-family: var(--font-m); font-size: 10px;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--accent);
}
.fork-card__title {
  font-family: var(--font-d); font-size: 15px;
  font-weight: 600; color: var(--text-1); line-height: 1.3;
}
.fork-card__desc { font-size: 13px; color: var(--text-2); line-height: 1.5; }
.fork-card__link { font-size: 13px; color: var(--accent); font-weight: 500; margin-top: 2px; }

/* Inner page hero CTA group */
.hero__ctas { display: flex; gap: 12px; flex-wrap: wrap; }

/* — SECTIONS — */
section { padding: var(--py) 0; }
.section-alt { background: var(--bg-1); }

.section-hd { margin-bottom: 52px; }
.section-hd .label { margin-bottom: 14px; }
.section-hd h2 { margin-bottom: 16px; }
.section-hd p { max-width: 540px; font-size: 15px; }

/* — CARDS — */
.card {
  background: var(--bg-2); border: 1px solid var(--border);
  border-radius: var(--r-lg); padding: 28px;
  transition: border-color 0.2s, transform 0.2s;
}
.card:hover { border-color: var(--border-up); transform: translateY(-2px); }

/* Engagement cards */
.eng-card { background: var(--bg-2); border: 1px solid var(--border); border-radius: var(--r-lg); padding: 28px; }
.eng-card__icon {
  width: 42px; height: 42px; border-radius: 8px;
  background: var(--accent-dim); border: 1px solid var(--accent-border);
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; margin-bottom: 20px;
}
.eng-card h4 { margin-bottom: 10px; }
.eng-card p { font-size: 14px; }

/* Problem columns */
.problem-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  background: var(--border); gap: 1px;
  border: 1px solid var(--border); border-radius: var(--r-lg); overflow: hidden;
}
.problem-col { background: var(--bg-2); padding: 40px; }
.problem-col h3 { margin-bottom: 14px; }
.problem-col p { font-size: 15px; margin-bottom: 24px; }
.problem-col .btn-ghost { font-size: 13px; color: var(--accent); }
.problem-col .btn-ghost:hover { color: var(--accent-h); }

/* — FEATURE LIST — */
.feature-list { list-style: none; }
.feature-list li {
  display: flex; align-items: flex-start; gap: 14px;
  padding: 13px 0; border-bottom: 1px solid var(--border);
  font-size: 15px; color: var(--text-2); line-height: 1.5;
}
.feature-list li:last-child { border-bottom: none; }
.feature-list li::before {
  content: '→'; font-family: var(--font-m);
  font-size: 12px; color: var(--accent);
  flex-shrink: 0; margin-top: 2px;
}

/* — BEFORE / AFTER TABLE — */
.ba-wrap {
  border: 1px solid var(--border); border-radius: var(--r-lg); overflow: hidden;
}
.ba-table { width: 100%; border-collapse: collapse; }
.ba-table thead tr { background: var(--bg-2); }
.ba-table th {
  font-family: var(--font-m); font-size: 11px;
  letter-spacing: 0.1em; text-transform: uppercase;
  padding: 14px 24px; text-align: left;
  border-bottom: 1px solid var(--border);
}
.ba-table th:first-child { color: #f87171; background: var(--red-dim); }
.ba-table th:last-child  { color: #34d399; background: var(--green-dim); }
.ba-table td {
  padding: 15px 24px; font-size: 14px; color: var(--text-2);
  border-bottom: 1px solid var(--border); vertical-align: top; line-height: 1.5;
}
.ba-table tr:last-child td { border-bottom: none; }
.ba-table td:first-child { color: var(--text-3); background: rgba(248,113,113,0.04); }
.ba-table td:last-child  { color: var(--text-1); background: rgba(52,211,153,0.04); }

/* — PROCESS STEPS — */
.process-list { display: flex; flex-direction: column; }
.process-step {
  display: grid; grid-template-columns: 72px 1fr;
  gap: 28px; padding: 32px 0;
  border-bottom: 1px solid var(--border);
}
.process-step:last-child { border-bottom: none; }
.process-step__n {
  font-family: var(--font-m); font-size: 11px;
  letter-spacing: 0.08em; color: var(--text-3);
  padding-top: 3px;
}
.process-step__n span {
  display: block; font-family: var(--font-d);
  font-size: 32px; font-weight: 600; color: var(--accent);
  line-height: 1; margin-bottom: 4px; letter-spacing: -0.04em;
}
.process-step__body h4 { margin-bottom: 8px; }
.process-step__body p { font-size: 15px; }

/* — CTA SECTION — */
.cta-band {
  border-top: 1px solid var(--border);
  padding: var(--py) 0;
}
.cta-box {
  background: var(--bg-2); border: 1px solid var(--border);
  border-radius: 14px; padding: 60px 52px;
  display: flex; align-items: center;
  justify-content: space-between; gap: 48px;
}
.cta-box__left h2 { margin-bottom: 12px; }
.cta-box__left p { max-width: 460px; font-size: 15px; }
.cta-box__right {
  display: flex; flex-direction: column;
  align-items: center; gap: 14px; flex-shrink: 0;
}
.cta-email {
  font-family: var(--font-m); font-size: 12px;
  color: var(--text-3); text-align: center;
}
.cta-email a:hover { color: var(--text-2); }

/* — ABOUT TEASER — */
.about-teaser {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 64px; align-items: center;
}
.about-teaser__text h2 { margin-bottom: 20px; }
.about-teaser__text p { font-size: 15px; margin-bottom: 16px; }
.about-teaser__stat-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 16px;
}
.about-stat {
  background: var(--bg-2); border: 1px solid var(--border);
  border-radius: var(--r-lg); padding: 24px;
}
.about-stat__val {
  font-family: var(--font-d); font-size: 32px; font-weight: 700;
  color: var(--accent); letter-spacing: -0.04em; line-height: 1;
  margin-bottom: 8px;
}
.about-stat__label { font-size: 13px; color: var(--text-2); line-height: 1.4; }

/* Profile cards (who this is for) */
.profile-card {
  background: var(--bg-2); border: 1px solid var(--border);
  border-radius: var(--r-lg); padding: 28px;
}
.profile-card__role {
  font-family: var(--font-m); font-size: 11px;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--accent); display: block; margin-bottom: 12px;
}
.profile-card h3 { margin-bottom: 12px; font-size: 18px; }
.profile-card p { font-size: 14px; line-height: 1.6; }

/* — FORM — */
.form-wrap {
  background: var(--bg-2); border: 1px solid var(--border);
  border-radius: 14px; padding: 48px;
  max-width: 680px; margin: 0 auto;
}
.form-wrap h2 { margin-bottom: 8px; }
.form-wrap > p { margin-bottom: 36px; font-size: 15px; }
.form { display: flex; flex-direction: column; gap: 18px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-group { display: flex; flex-direction: column; gap: 7px; }
.form-group label {
  font-family: var(--font-m); font-size: 10.5px;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--text-3);
}
.form-group input,
.form-group select,
.form-group textarea {
  background: var(--bg-3); border: 1px solid var(--border);
  border-radius: var(--r); padding: 11px 14px;
  color: var(--text-1); font-family: var(--font-b);
  font-size: 14px; transition: border-color 0.15s; width: 100%;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none; border-color: var(--accent);
  background: var(--bg-0);
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--text-3); }
.form-group select { appearance: none; cursor: pointer; }
.form-group select option { background: var(--bg-2); }
.form-group textarea { resize: vertical; min-height: 120px; line-height: 1.5; }
.form-submit { margin-top: 4px; }
.form-submit .btn { width: 100%; justify-content: center; padding: 13px 24px; font-size: 15px; }

/* — FOOTER — */
.footer {
  border-top: 1px solid var(--border);
  padding: 60px 0 32px; background: var(--bg-0);
}
.footer__top {
  display: grid; grid-template-columns: 2fr 1fr 1fr;
  gap: 48px; margin-bottom: 48px;
}
.footer__brand p { font-size: 13px; margin-top: 14px; max-width: 280px; }
.footer__brand .nav__logo { margin-bottom: 0; }
.footer__col h5 {
  font-family: var(--font-m); font-size: 10.5px;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--text-3); margin-bottom: 18px;
}
.footer__col ul { list-style: none; }
.footer__col ul li { margin-bottom: 10px; }
.footer__col ul li a { font-size: 14px; color: var(--text-2); transition: color 0.15s; }
.footer__col ul li a:hover { color: var(--text-1); }
.footer__bottom {
  display: flex; align-items: center;
  justify-content: space-between;
  padding-top: 24px; border-top: 1px solid var(--border);
}
.footer__copy { font-family: var(--font-m); font-size: 11.5px; color: var(--text-3); }
.footer__legal { display: flex; gap: 20px; }
.footer__legal a { font-family: var(--font-m); font-size: 11.5px; color: var(--text-3); transition: color 0.15s; }
.footer__legal a:hover { color: var(--text-2); }

/* — RESPONSIVE — */
@media (max-width: 780px) {
  :root { --py: 64px; }

  .nav__links, .nav__cta { display: none; }
  .nav__burger { display: flex; }

  .hero { padding: 72px 0 64px; }
  .hero__sub { font-size: 16px; }
  .hero__fork { grid-template-columns: 1fr; max-width: 100%; }

  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .problem-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .about-teaser { grid-template-columns: 1fr; gap: 36px; }
  .about-teaser__stat-grid { grid-template-columns: 1fr 1fr; }

  .cta-box { flex-direction: column; padding: 36px 28px; text-align: center; }
  .cta-box__left p { max-width: 100%; }
  .cta-box__right { width: 100%; }
  .cta-box__right .btn { width: 100%; justify-content: center; }

  .footer__top { grid-template-columns: 1fr; gap: 32px; }
  .footer__bottom { flex-direction: column; gap: 12px; text-align: center; }
  .footer__legal { justify-content: center; }

  .process-step { grid-template-columns: 52px 1fr; gap: 16px; }
  .form-wrap { padding: 32px 24px; }
}