/* ============================================================
   Sellercraft — minimal editorial stylesheet
   No frameworks. No build step. Mobile-first.
   ============================================================ */

:root {
  /* Brand — pulled from the Sellercraft logo */
  --ink: #0A1628;          /* headings, deep navy near-black */
  --body: #4E5765;         /* body copy */
  --muted: #8993A4;        /* labels, captions */
  --navy: #2D4A6B;         /* brand navy (hex outline) */
  --accent: #E85D24;       /* brand orange — primary CTA */
  --accent-hover: #C84A14;
  --warm: #F2B233;         /* brand gold accent */
  --rule: #E8EAED;
  --bg: #FFFFFF;
  --bg-alt: #F7F8FA;
  --bg-warm: #FFF8F0;      /* subtle warm tint */

  /* Type */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI',
               Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;

  /* Layout */
  --max: 1120px;
  --measure: 64ch;
  --pad: clamp(20px, 5vw, 64px);

  /* Motion */
  --ease: cubic-bezier(.2, .65, .25, 1);
}

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body, h1, h2, h3, h4, p, ul, ol, figure, blockquote { margin: 0; }
img, svg { display: block; max-width: 100%; height: auto; }
button { font: inherit; cursor: pointer; background: none; border: 0; }
a { color: inherit; text-decoration: none; }
ul { padding: 0; list-style: none; }

/* ---------- base ---------- */
html, body { background: var(--bg); }
body {
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.65;
  color: var(--body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: "ss01", "cv11";
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
  color: var(--ink);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

h1 { font-weight: 700; letter-spacing: -0.035em; }

p { max-width: var(--measure); }

a.link {
  color: var(--accent);
  border-bottom: 1px solid currentColor;
  padding-bottom: 1px;
  transition: opacity .2s var(--ease);
}
a.link:hover { opacity: .65; }

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

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

.section {
  padding-block: clamp(64px, 10vw, 128px);
  border-top: 1px solid var(--rule);
}
.section--alt { background: var(--bg-alt); }
.section--warm { background: var(--bg-warm); }
.section--flush { border-top: 0; padding-top: clamp(48px, 8vw, 96px); }

.eyebrow {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 24px;
}
.eyebrow--accent { color: var(--accent); }

/* ---------- header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, .85);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color .25s var(--ease);
}
.site-header.is-scrolled { border-bottom-color: var(--rule); }

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 106px;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.brand__logo {
  height: 80px;
  width: auto;
  display: block;
}
.brand__logo--footer { height: 68px; }
@media (max-width: 520px) {
  .nav { height: 88px; }
  .brand__logo { height: 65px; }
}

.nav__links {
  display: none;
  gap: 32px;
  font-size: 15px;
  color: var(--body);
}
.nav__links a {
  position: relative;
  padding: 6px 0;
  transition: color .2s var(--ease);
}
.nav__links a:hover,
.nav__links a[aria-current="page"] { color: var(--ink); }

.nav__cta { display: none; }

.nav__toggle {
  border: 1px solid var(--rule);
  width: 40px; height: 40px; border-radius: 8px;
  display: inline-flex; align-items: center; justify-content: center;
}
.nav__toggle span,
.nav__toggle span::before,
.nav__toggle span::after {
  content: ""; display: block; width: 16px; height: 1.5px;
  background: var(--ink); position: relative; transition: transform .2s var(--ease);
}
.nav__toggle span::before { position: absolute; top: -5px; }
.nav__toggle span::after  { position: absolute; top: 5px; }
.nav__toggle[aria-expanded="true"] span { background: transparent; }
.nav__toggle[aria-expanded="true"] span::before { transform: translateY(5px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] span::after  { transform: translateY(-5px) rotate(-45deg); }

.nav__mobile {
  display: none;
  border-top: 1px solid var(--rule);
  padding: 16px var(--pad) 24px;
  background: var(--bg);
}
.nav__mobile.is-open { display: block; }
.nav__mobile a {
  display: block;
  padding: 14px 0;
  font-size: 17px;
  color: var(--ink);
  border-bottom: 1px solid var(--rule);
}
.nav__mobile a:last-child { border-bottom: 0; }

@media (min-width: 820px) {
  .nav__links { display: flex; }
  .nav__cta   { display: inline-flex; }
  .nav__toggle { display: none; }
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 22px;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: -0.005em;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: transform .15s var(--ease), background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
  white-space: nowrap;
  cursor: pointer;
}
.btn--primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 1px 0 rgba(232, 93, 36, .25), 0 6px 18px -8px rgba(232, 93, 36, .55);
}
.btn--primary:hover { background: var(--accent-hover); }
.btn--ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--rule);
}
.btn--ghost:hover { border-color: var(--ink); }
.btn--small { padding: 10px 18px; font-size: 14px; }

.btn .arrow {
  width: 14px; height: 14px;
  transition: transform .2s var(--ease);
}
.btn:hover .arrow { transform: translateX(3px); }

/* ---------- hero ---------- */
.hero {
  padding-block: clamp(72px, 14vw, 160px);
}
.hero__eyebrow {
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 28px;
  font-weight: 500;
}
.hero__title {
  font-size: clamp(40px, 7.2vw, 88px);
  line-height: 1.02;
  letter-spacing: -0.04em;
  font-weight: 700;
  color: var(--ink);
  max-width: 18ch;
  margin-bottom: 32px;
}
.hero__title em {
  font-style: normal;
  color: var(--accent);
}
.hero__sub {
  font-size: clamp(18px, 2.1vw, 22px);
  line-height: 1.55;
  color: var(--body);
  max-width: 56ch;
  margin-bottom: 40px;
}
.hero__sub strong { color: var(--ink); font-weight: 500; }
.hero__ctas {
  display: flex; flex-wrap: wrap; gap: 12px;
}

/* ---------- section title ---------- */
.s-title {
  font-size: clamp(28px, 4.4vw, 48px);
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
  max-width: 22ch;
}
.s-title em { font-style: normal; color: var(--accent); }
.s-lede {
  font-size: clamp(17px, 1.6vw, 19px);
  color: var(--body);
  max-width: 56ch;
  margin-bottom: 40px;
}

/* ---------- video lite embed ---------- */
.video {
  position: relative;
  margin-top: 40px;
  border-radius: 16px;
  overflow: hidden;
  background: var(--ink);
  aspect-ratio: 16 / 9;
  box-shadow: 0 1px 1px rgba(10,22,40,.06), 0 18px 48px -18px rgba(10,22,40,.32);
  border: 1px solid var(--rule);
}
.video__btn {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  padding: 0; border: 0; background: none;
  cursor: pointer;
  display: block;
}
.video__thumb {
  width: 100%; height: 100%; object-fit: cover; display: block;
  transition: transform .8s var(--ease), filter .3s var(--ease);
}
.video__btn:hover .video__thumb { transform: scale(1.02); filter: brightness(.92); }
.video__overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(10,22,40,.55) 0%, rgba(10,22,40,.05) 50%, transparent 100%);
  pointer-events: none;
}
.video__play {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 76px; height: 76px;
  border-radius: 50%;
  background: var(--accent);
  display: flex; align-items: center; justify-content: center;
  transition: transform .25s var(--ease), background .25s var(--ease);
  box-shadow: 0 8px 28px -6px rgba(232, 93, 36, .55);
}
.video__btn:hover .video__play { transform: translate(-50%, -50%) scale(1.07); background: var(--accent-hover); }
.video__play svg { width: 26px; height: 26px; fill: #fff; margin-left: 4px; }
.video__caption {
  position: absolute;
  left: 24px; right: 24px; bottom: 22px;
  color: #fff;
  text-shadow: 0 1px 12px rgba(0,0,0,.35);
}
.video__caption-eyebrow {
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--warm);
  font-weight: 500;
  margin-bottom: 6px;
}
.video__caption-title {
  font-size: clamp(18px, 2.4vw, 24px);
  font-weight: 600;
  letter-spacing: -0.015em;
}
.video iframe {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  border: 0;
}
@media (max-width: 480px) {
  .video__play { width: 60px; height: 60px; }
  .video__play svg { width: 20px; height: 20px; }
  .video__caption { left: 16px; right: 16px; bottom: 14px; }
}

/* ---------- two-problem grid ---------- */
.problems {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  margin-top: 48px;
}
.problem {
  padding: 36px 32px;
  background: var(--bg);
  border: 1px solid var(--rule);
  border-radius: 16px;
}
.problem__num {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 8px;
}
.problem__title {
  font-size: clamp(22px, 2.8vw, 28px);
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}
.problem__list { display: grid; gap: 12px; }
.problem__list li {
  position: relative;
  padding-left: 22px;
  font-size: 16px;
  color: var(--body);
  line-height: 1.5;
}
.problem__list li::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
  position: absolute;
  left: 4px; top: 9px;
}
@media (min-width: 820px) {
  .problems { grid-template-columns: 1fr 1fr; gap: 32px; }
}

/* ---------- behavior cards (PROMINENT) ---------- */
.behaviors {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin-top: 56px;
}
.behavior {
  position: relative;
  padding: 40px 36px;
  background: var(--bg);
  border: 1px solid var(--rule);
  border-radius: 18px;
  transition: transform .25s var(--ease), border-color .25s var(--ease), box-shadow .25s var(--ease);
  overflow: hidden;
}
.behavior::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--accent), var(--warm));
  opacity: 0;
  transition: opacity .25s var(--ease);
}
.behavior:hover {
  border-color: rgba(232, 93, 36, .25);
  box-shadow: 0 1px 1px rgba(10,22,40,.04), 0 18px 40px -22px rgba(10,22,40,.18);
}
.behavior:hover::before { opacity: 1; }
.behavior__num {
  font-size: 56px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.06em;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 16px;
  display: block;
  font-family: var(--font-sans);
}
.behavior__title {
  font-size: clamp(22px, 2.6vw, 26px);
  letter-spacing: -0.02em;
  margin-bottom: 12px;
  line-height: 1.2;
  color: var(--ink);
}
.behavior__desc {
  font-size: 16px;
  color: var(--body);
  line-height: 1.6;
}
@media (min-width: 720px) {
  .behaviors { grid-template-columns: 1fr 1fr; gap: 24px; }
}

/* ---------- visibility list (compact, subordinate) ---------- */
.visibility {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin-top: 32px;
  border-top: 1px solid var(--rule);
}
.vis-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--rule);
  align-items: baseline;
}
.vis-item__num {
  font-size: 13px;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.06em;
  color: var(--muted);
  font-weight: 500;
  min-width: 24px;
}
.vis-item__text {
  font-size: 17px;
  color: var(--ink);
  letter-spacing: -0.005em;
  line-height: 1.5;
  margin: 0;
}

/* ---------- audience grid ---------- */
.audience {
  display: grid;
  grid-template-columns: 1fr;
  gap: 56px;
  margin-top: 48px;
}
.aud { padding-top: 32px; border-top: 1px solid var(--rule); }
.aud__num {
  font-size: 13px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
  font-weight: 500;
}
.aud__title {
  font-size: clamp(24px, 2.8vw, 32px);
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}
.aud__desc { font-size: 17px; color: var(--body); }
@media (min-width: 800px) {
  .audience { grid-template-columns: repeat(3, 1fr); gap: 32px; }
}

/* ---------- big CTA ---------- */
.cta-block {
  text-align: center;
  padding-block: clamp(80px, 12vw, 144px);
}
.cta-block__title {
  font-size: clamp(32px, 5.5vw, 64px);
  letter-spacing: -0.035em;
  line-height: 1.05;
  margin: 0 auto 24px;
  max-width: 18ch;
}
.cta-block__title em { font-style: normal; color: var(--accent); }
.cta-block__sub {
  font-size: 18px;
  color: var(--body);
  margin: 0 auto 40px;
  max-width: 50ch;
}

/* ---------- prose ---------- */
.prose { max-width: 68ch; margin: 0 auto; }
.prose h2 {
  font-size: clamp(26px, 3.4vw, 36px);
  letter-spacing: -0.025em;
  margin-top: 56px;
  margin-bottom: 16px;
}
.prose h3 {
  font-size: 20px;
  margin-top: 32px;
  margin-bottom: 8px;
  letter-spacing: -0.015em;
}
.prose p,
.prose ul,
.prose ol { margin-bottom: 18px; font-size: 17px; line-height: 1.75; }
.prose ul { padding-left: 1.25em; }
.prose ul li { list-style: disc; margin-bottom: 8px; }
.prose strong { color: var(--ink); font-weight: 600; }

/* ---------- form ---------- */
.form {
  max-width: 540px;
  display: grid;
  gap: 20px;
}
.form__field { display: grid; gap: 6px; }
.form__label {
  font-size: 13px;
  font-weight: 500;
  color: var(--ink);
  letter-spacing: -0.005em;
}
.form__input,
.form__textarea {
  width: 100%;
  padding: 14px 16px;
  font: inherit;
  font-size: 16px;
  color: var(--ink);
  background: var(--bg);
  border: 1px solid var(--rule);
  border-radius: 10px;
  transition: border-color .15s var(--ease), box-shadow .15s var(--ease);
}
.form__input:focus,
.form__textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(232, 93, 36, 0.12);
}
.form__textarea { min-height: 140px; resize: vertical; line-height: 1.55; }
.form__hint { font-size: 13px; color: var(--muted); }
.form__row { display: grid; gap: 20px; }
@media (min-width: 600px) { .form__row { grid-template-columns: 1fr 1fr; } }
.form__submit { justify-self: start; margin-top: 8px; }
.form__status {
  font-size: 14px;
  padding: 12px 14px;
  border-radius: 8px;
  display: none;
}
.form__status.is-success { display: block; background: #EAF5EE; color: #1F6B3A; border: 1px solid #C6E3D2; }
.form__status.is-error   { display: block; background: #FBEAEA; color: #8B2222; border: 1px solid #F1C7C7; }

/* ---------- platform cap-list ---------- */
.cap-list {
  display: grid;
  gap: 56px;
  margin-top: 56px;
}
.cap {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  padding-top: 48px;
  border-top: 1px solid var(--rule);
}
.cap:first-child { border-top: 0; padding-top: 0; }
.cap__num {
  font-size: 13px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  font-weight: 500;
}
.cap__h {
  font-size: clamp(26px, 3.4vw, 36px);
  letter-spacing: -0.025em;
  margin-bottom: 4px;
}
.cap__p { font-size: 17px; color: var(--body); }
.cap__list { margin-top: 20px; display: grid; gap: 10px; }
.cap__list li {
  position: relative;
  padding-left: 22px;
  font-size: 16px;
  color: var(--body);
}
.cap__list li::before {
  content: "";
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--accent);
  position: absolute;
  left: 4px; top: 11px;
}
@media (min-width: 800px) {
  .cap { grid-template-columns: 200px 1fr; gap: 40px; align-items: start; }
}

/* ---------- footer ---------- */
.site-footer {
  border-top: 1px solid var(--rule);
  padding-block: 64px 32px;
  background: var(--bg);
}
.footer__grid {
  display: grid;
  gap: 48px;
  grid-template-columns: 1fr;
  margin-bottom: 56px;
}
.footer__col h4 {
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 500;
  margin-bottom: 16px;
}
.footer__col ul { display: grid; gap: 10px; }
.footer__col a {
  font-size: 15px;
  color: var(--body);
  transition: color .2s var(--ease);
}
.footer__col a:hover { color: var(--ink); }
.footer__brand p {
  font-size: 14px;
  color: var(--muted);
  max-width: 36ch;
  margin-top: 12px;
}
.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  border-top: 1px solid var(--rule);
  font-size: 13px;
  color: var(--muted);
}
.footer__social { display: flex; gap: 16px; }
.footer__social a {
  display: inline-flex;
  width: 32px; height: 32px;
  align-items: center; justify-content: center;
  border: 1px solid var(--rule);
  border-radius: 50%;
  color: var(--body);
  transition: color .2s var(--ease), border-color .2s var(--ease);
}
.footer__social a:hover { color: var(--accent); border-color: var(--accent); }
.footer__social svg { width: 14px; height: 14px; }
.footer__legal { display: flex; gap: 20px; }
.footer__legal a {
  font-size: 13px;
  color: var(--muted);
  transition: color .2s var(--ease);
}
.footer__legal a:hover { color: var(--ink); }
@media (min-width: 720px) {
  .footer__grid { grid-template-columns: 1.4fr 1fr 1fr 1fr; }
}

/* ---------- scroll reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
  will-change: opacity, transform;
}
.reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ---------- small page header ---------- */
.page-head {
  padding-block: clamp(72px, 11vw, 144px) clamp(48px, 7vw, 80px);
}
.page-head__eyebrow {
  font-size: 13px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 24px;
  font-weight: 500;
}
.page-head__title {
  font-size: clamp(40px, 6vw, 72px);
  letter-spacing: -0.035em;
  line-height: 1.05;
  margin-bottom: 24px;
  max-width: 20ch;
}
.page-head__title em { font-style: normal; color: var(--accent); }
.page-head__sub {
  font-size: clamp(18px, 2vw, 22px);
  color: var(--body);
  max-width: 56ch;
  line-height: 1.5;
}