/* =========================================================
   ai-creo — landing styles  (light theme · orange accent)
   Mobile-first, no external dependencies
   ========================================================= */

/* ---------- Tokens ---------- */
:root {
  --orange: #fb5012;
  --orange-ink: #e0440b;
  --orange-soft: #ffece2;
  --orange-soft-2: #fff4ee;

  --ink: #17120e;
  --ink-2: #3b332b;
  --muted: #756b61;
  --line: #efe8e0;
  --bg: #ffffff;
  --bg-warm: #fbf7f2;

  --navy: #1e2a3a;
  --cream: #f3ece0;
  --plum: #2a2030;

  --radius: 18px;
  --radius-lg: 26px;
  --radius-btn: 15px;
  --radius-pill: 999px;
  --shadow-sm: 0 2px 12px rgba(23, 18, 14, .05);
  --shadow: 0 22px 60px -26px rgba(23, 18, 14, .22);
  --shadow-orange: 0 16px 38px -14px rgba(251, 80, 18, .5);
  --shadow-card: 0 26px 50px -24px rgba(23, 18, 14, .38);

  --container: 1140px;
  --ease: cubic-bezier(.22, .61, .36, 1);

  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto",
    "Helvetica Neue", Arial, "PingFang SC", "Noto Sans", sans-serif;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; overflow-x: hidden; }
body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
.accent { color: var(--orange); }

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 20px;
}
.container--narrow { max-width: 760px; }

.section { padding: 70px 0; position: relative; }
.section--problem, .section--how, .section--faq { background: var(--bg); }
.section--solution, .section--audience, .section--pricing { background: var(--bg-warm); }
.section__head { max-width: 720px; margin: 0 auto 44px; text-align: center; }
.section__title {
  font-size: clamp(1.65rem, 5vw, 2.55rem);
  line-height: 1.1;
  letter-spacing: -.025em;
  font-weight: 800;
}
.section__lead { margin-top: 16px; font-size: 1.06rem; color: var(--muted); }
.section__lead b { color: var(--ink); }

.eyebrow {
  display: inline-block;
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 14px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 700;
  font-size: .98rem;
  padding: 13px 22px;
  border-radius: var(--radius-btn);
  transition: transform .18s var(--ease), box-shadow .25s var(--ease), background .2s;
  white-space: nowrap;
  line-height: 1;
}
.btn--primary { background: var(--orange); color: #fff; box-shadow: var(--shadow-orange); }
.btn--primary:hover { transform: translateY(-2px); background: var(--orange-ink); box-shadow: 0 20px 44px -14px rgba(251, 80, 18, .65); }
.btn--ghost {
  background: #fff;
  color: var(--ink);
  border: 1.5px solid var(--line);
}
.btn--ghost:hover { transform: translateY(-2px); border-color: var(--orange); color: var(--orange); }
.btn--lg { padding: 17px 32px; font-size: 1.06rem; border-radius: 17px; }
.btn--sm { padding: 10px 18px; font-size: .9rem; }
.btn--block { width: 100%; }

/* ---------- Badge / pills ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .03em;
  text-transform: uppercase;
  color: var(--orange);
  background: var(--orange-soft);
  padding: 8px 16px;
  border-radius: var(--radius-pill);
}

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  transition: background .3s, box-shadow .3s, padding .3s;
  padding: 16px 0;
}
.site-header.scrolled {
  background: rgba(255, 255, 255, .85);
  backdrop-filter: blur(14px);
  box-shadow: 0 1px 0 var(--line);
  padding: 10px 0;
}
.header__inner { display: flex; align-items: center; gap: 20px; }
.logo__img { height: 28px; width: auto; }
.logo__img--footer { height: 26px; }
.nav { display: none; margin-left: auto; align-items: center; gap: 28px; }
.nav__link { font-weight: 600; font-size: .95rem; color: var(--ink-2); transition: color .2s; }
.nav__link:hover { color: var(--orange); }
.nav__link--login { font-weight: 700; }
.nav__cta { margin-left: 4px; }

.burger {
  margin-left: auto;
  width: 42px; height: 42px;
  display: flex; flex-direction: column;
  justify-content: center; align-items: center;
  gap: 5px;
  border-radius: 12px;
}
.burger span { width: 22px; height: 2px; background: var(--ink); border-radius: 2px; transition: transform .3s, opacity .2s; }
.burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger.open span:nth-child(2) { opacity: 0; }
.burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav.open {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  position: absolute;
  top: 100%; left: 12px; right: 12px;
  margin-top: 10px;
  background: #fff;
  border-radius: var(--radius);
  padding: 14px;
  gap: 4px;
  box-shadow: var(--shadow);
}
.nav.open .nav__link { color: var(--ink); padding: 12px 14px; border-radius: 12px; }
.nav.open .nav__link:hover { background: var(--bg-warm); }
.nav.open .nav__cta { margin-top: 6px; }

/* ---------- Hero ---------- */
.hero { position: relative; padding: 116px 0 70px; overflow: hidden; background: var(--bg); }
.hero__glow {
  position: absolute; z-index: 0;
  width: 620px; height: 620px;
  top: -260px; right: -180px;
  background: radial-gradient(circle, rgba(251, 80, 18, .14), transparent 65%);
  pointer-events: none;
}
.hero__inner { position: relative; z-index: 1; display: grid; gap: 14px; align-items: center; }
.hero__copy { max-width: 560px; }
.hero__title {
  font-size: clamp(2.3rem, 9vw, 3.7rem);
  line-height: 1.04;
  letter-spacing: -.035em;
  font-weight: 800;
  margin: 20px 0 18px;
}
.hero__sub { font-size: 1.12rem; color: var(--muted); max-width: 480px; }
.hero__sub b { color: var(--ink); font-weight: 700; }
.hero__sub2 { font-size: 1.12rem; font-weight: 700; color: var(--ink); margin-top: 4px; }
.hero__actions { margin: 28px 0 14px; }
.hero__micro { font-size: .92rem; color: var(--muted); }
.hero__micro b { color: var(--ink); }
.hero__trust {
  display: flex; flex-wrap: wrap; gap: 8px 22px;
  margin-top: 14px; font-size: .92rem; color: var(--ink-2); font-weight: 600;
}
.hero__trust li { display: flex; align-items: center; gap: 7px; }
.hero__trust li::before {
  content: "✓"; color: var(--orange); font-weight: 800;
}

/* ---------- Ad-creative card (shared: hero deck + gallery) ---------- */
.adcard {
  border-radius: 20px;
  padding: 16px 16px 15px;
  display: flex; flex-direction: column;
  box-shadow: var(--shadow-card);
  overflow: hidden;
  position: relative;
}
.adcard__row { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.adcard__cat { font-size: .64rem; font-weight: 800; text-transform: uppercase; letter-spacing: .07em; }
.adcard__ad {
  font-size: .56rem; font-weight: 700; text-transform: uppercase; letter-spacing: .05em;
  padding: 3px 8px; border-radius: var(--radius-pill); white-space: nowrap;
}
.adcard__h {
  font-size: clamp(1.15rem, 4.6vw, 1.45rem);
  font-weight: 800; line-height: 1.05; letter-spacing: -.02em;
  margin-top: 18px;
}
.adcard__offer { font-size: .82rem; margin-top: 7px; font-weight: 500; }
.adcard__btn {
  margin-top: 16px; align-self: flex-start;
  font-size: .74rem; font-weight: 700;
  padding: 9px 16px; border-radius: 11px;
}

/* color variants */
.c-orange { background: linear-gradient(160deg, #ff6a30 0%, #fb5012 60%, #e23c08 100%); color: #fff; }
.c-orange .adcard__ad { background: rgba(255, 255, 255, .22); color: #fff; }
.c-orange .adcard__offer { color: rgba(255, 255, 255, .9); }
.c-orange .adcard__btn { background: #fff; color: var(--orange-ink); }

.c-cream { background: var(--cream); color: var(--ink); }
.c-cream .adcard__cat { color: var(--orange-ink); }
.c-cream .adcard__ad { background: rgba(23, 18, 14, .08); color: var(--ink-2); }
.c-cream .adcard__offer { color: var(--ink-2); }
.c-cream .adcard__btn { background: var(--orange); color: #fff; }

.c-navy { background: linear-gradient(160deg, #2b3b50 0%, #1e2a3a 70%); color: #fff; }
.c-navy .adcard__cat { color: #8fb0d8; }
.c-navy .adcard__ad { background: rgba(255, 255, 255, .14); color: #fff; }
.c-navy .adcard__offer { color: rgba(255, 255, 255, .82); }
.c-navy .adcard__btn { background: var(--orange); color: #fff; }

.c-plum { background: linear-gradient(160deg, #3a2c44 0%, #2a2030 70%); color: #fff; }
.c-plum .adcard__cat { color: #d9a7c8; }
.c-plum .adcard__ad { background: rgba(255, 255, 255, .14); color: #fff; }
.c-plum .adcard__offer { color: rgba(255, 255, 255, .82); }
.c-plum .adcard__btn { background: #fff; color: var(--plum); }

/* ---------- Hero deck (fanned) ---------- */
.hero__deck {
  position: relative;
  height: 372px;
  margin-top: 38px;
}
.deck-card {
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 196px;
  height: 348px;
  transform-origin: bottom center;
  border-radius: 18px;
  overflow: hidden;
  background: #15101f;
  box-shadow: var(--shadow-card);
}
.deck-card img { width: 100%; height: 100%; object-fit: cover; display: block; }
.deck-card--left { transform: translateX(-94%) rotate(-12deg); z-index: 1; }
.deck-card--center { transform: translateX(-50%) translateY(-20px) rotate(0); z-index: 3; }
.deck-card--right { transform: translateX(-6%) rotate(12deg); z-index: 1; }

/* ---------- Trust strip ---------- */
.strip { background: var(--bg-warm); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.strip__inner {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: center;
  gap: 12px 18px; padding: 20px;
  font-size: .92rem; color: var(--muted);
}
.strip__item b { color: var(--ink); }
.strip__dot { width: 5px; height: 5px; border-radius: 50%; background: #d8cfc4; }

/* ---------- Problem ---------- */
.pain-grid { display: grid; grid-template-columns: 1fr; gap: 16px; }
.pain-card {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px;
  box-shadow: var(--shadow-sm);
  transition: transform .25s var(--ease), box-shadow .25s;
}
.pain-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.pain-card__ico { font-size: 1.8rem; display: block; margin-bottom: 12px; }
.pain-card h3 { font-size: 1.12rem; margin-bottom: 6px; }
.pain-card p { color: var(--muted); font-size: .96rem; }
.problem__kicker {
  margin-top: 36px; text-align: center;
  font-size: clamp(1.15rem, 3.5vw, 1.5rem);
  font-weight: 800; letter-spacing: -.01em;
}

/* ---------- Solution / value ---------- */
.value-grid { display: grid; grid-template-columns: 1fr; gap: 18px; }
.value-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  transition: transform .25s var(--ease), box-shadow .25s;
}
.value-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.value-card__num { font-size: 2rem; font-weight: 800; color: var(--orange); }
.value-card h3 { font-size: 1.2rem; margin: 6px 0 8px; }
.value-card p { color: var(--muted); font-size: .98rem; }

/* ---------- How ---------- */
.steps { display: grid; grid-template-columns: 1fr; gap: 14px; align-items: stretch; }
.step {
  background: var(--bg-warm);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 26px;
  position: relative;
}
.step__n {
  width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  background: var(--orange); color: #fff;
  font-weight: 800; font-size: 1.2rem;
  border-radius: 13px; margin-bottom: 16px;
  box-shadow: var(--shadow-orange);
}
.step h3 { font-size: 1.2rem; margin-bottom: 8px; }
.step p { color: var(--muted); font-size: .98rem; }
.step__meta {
  display: inline-block; margin-top: 14px;
  font-size: .8rem; font-weight: 700; color: var(--orange);
  background: var(--orange-soft); padding: 5px 12px; border-radius: var(--radius-pill);
}
.step__arrow { display: none; align-self: center; font-size: 1.6rem; color: #d8cfc4; }

/* ---------- Examples / gallery ---------- */
.section--examples { background: var(--ink); color: #fff; }
.section--examples .section__lead { color: rgba(255, 255, 255, .72); }
.section--examples .section__lead b { color: #fff; }
.gallery { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.creative { display: flex; flex-direction: column; }
.gallery--photos { grid-template-columns: 1fr; gap: 22px; max-width: 340px; margin: 0 auto; align-items: end; }
.creative__img { width: 100%; height: auto; border-radius: 16px; box-shadow: var(--shadow-card); transition: transform .3s var(--ease), box-shadow .3s; }
.creative:hover .creative__img { transform: translateY(-6px); box-shadow: 0 34px 60px -28px rgba(0, 0, 0, .6); }
.adcard--tall { aspect-ratio: 4 / 5; transition: transform .3s var(--ease), box-shadow .3s; }
.creative:hover .adcard--tall { transform: translateY(-6px); box-shadow: 0 34px 60px -28px rgba(0, 0, 0, .6); }
.creative figcaption {
  text-align: center; font-size: .82rem; font-weight: 600;
  color: rgba(255, 255, 255, .55); margin-top: 12px;
}
.examples__note {
  text-align: center; max-width: 620px; margin: 34px auto 0;
  font-size: .9rem; color: rgba(255, 255, 255, .5);
}

/* ---------- Audience ---------- */
.aud-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.aud-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 18px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: transform .25s var(--ease), border-color .25s;
}
.aud-card:hover { transform: translateY(-4px); border-color: var(--orange); }
.aud-card span { font-size: 1.9rem; display: block; margin-bottom: 8px; }
.aud-card p { font-size: .92rem; font-weight: 600; }

/* ---------- Pricing ---------- */
.price-grid { display: grid; grid-template-columns: 1fr; gap: 16px; }
.price-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 30px 26px;
  position: relative;
  box-shadow: var(--shadow-sm);
  transition: transform .25s var(--ease), box-shadow .25s;
}
.price-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.price-card--featured { border-color: var(--orange); box-shadow: 0 26px 60px -28px rgba(251, 80, 18, .5); }
.price-card__badge {
  position: absolute; top: -12px; left: 26px;
  background: var(--orange); color: #fff;
  font-size: .74rem; font-weight: 700;
  padding: 5px 14px; border-radius: var(--radius-pill);
  box-shadow: var(--shadow-orange);
}
.price-card__name { font-size: 1.1rem; font-weight: 700; color: var(--ink-2); }
.price-card__price { margin: 10px 0 4px; }
.price-card__price b { font-size: 2.1rem; font-weight: 800; letter-spacing: -.02em; }
.price-card__price span { color: var(--muted); font-size: .95rem; }
.price-card__unit { font-size: .88rem; color: var(--orange); font-weight: 700; margin-bottom: 18px; }
.price-card__list { display: flex; flex-direction: column; gap: 9px; margin-bottom: 24px; }
.price-card__list li { font-size: .94rem; color: var(--ink-2); display: flex; gap: 9px; }
.price-card__list li::before { content: "✓"; color: var(--orange); font-weight: 800; }
.pricing__note { text-align: center; margin-top: 26px; font-size: .9rem; color: var(--muted); }

/* ---------- FAQ ---------- */
.faq { display: flex; flex-direction: column; gap: 12px; }
.faq__item {
  background: var(--bg-warm);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.faq__item summary {
  list-style: none; cursor: pointer;
  padding: 20px 54px 20px 22px;
  font-weight: 700; font-size: 1.02rem; position: relative;
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary::after {
  content: "+";
  position: absolute; right: 22px; top: 50%; transform: translateY(-50%);
  font-size: 1.5rem; font-weight: 400; color: var(--orange);
  transition: transform .3s var(--ease);
}
.faq__item[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq__body { padding: 0 22px 20px; }
.faq__body p { color: var(--muted); font-size: .98rem; }

/* ---------- Start / lead form ---------- */
.section--start { background: var(--bg); padding-bottom: 92px; }
.start-card {
  display: grid; grid-template-columns: 1fr;
  background: var(--ink);
  color: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.start-card__copy { padding: 40px 32px 8px; }
.start-card__copy h2 { font-size: clamp(1.5rem, 5vw, 2.1rem); line-height: 1.12; letter-spacing: -.02em; }
.start-card__copy > p { color: rgba(255, 255, 255, .72); margin: 12px 0 18px; }
.start-card__perks { display: flex; flex-direction: column; gap: 8px; }
.start-card__perks li { font-size: .96rem; color: rgba(255, 255, 255, .88); display: flex; gap: 9px; }
.start-card__perks li::before { content: "✓"; color: var(--orange); font-weight: 800; }
.lead-form { padding: 28px 32px 40px; display: flex; flex-direction: column; gap: 14px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-size: .85rem; font-weight: 600; color: rgba(255, 255, 255, .72); }
.req { color: var(--orange); }
.field input {
  background: rgba(255, 255, 255, .06);
  border: 1.5px solid rgba(255, 255, 255, .16);
  border-radius: 12px;
  padding: 13px 15px;
  color: #fff; font-size: 1rem;
  transition: border-color .2s, background .2s;
}
.field input::placeholder { color: rgba(255, 255, 255, .38); }
.field input:focus { outline: none; border-color: var(--orange); background: rgba(255, 255, 255, .09); }
.field input.invalid { border-color: #ff6b6b; }
.lead-form__fine { font-size: .78rem; color: rgba(255, 255, 255, .45); text-align: center; }
.lead-form__success {
  text-align: center; font-weight: 700; color: #ffd9c7;
  background: rgba(251, 80, 18, .18); padding: 14px; border-radius: 12px;
}

/* ---------- Footer ---------- */
.footer { background: var(--ink); color: rgba(255, 255, 255, .68); padding: 56px 0 28px; }
.footer__inner {
  display: grid; grid-template-columns: 1fr; gap: 32px;
  padding-bottom: 36px;
  border-bottom: 1px solid rgba(255, 255, 255, .1);
}
.footer__brand p { margin-top: 14px; font-size: .92rem; max-width: 320px; }
.footer__col h4 { color: #fff; font-size: .95rem; margin-bottom: 14px; }
.footer__col a { display: block; font-size: .92rem; padding: 5px 0; transition: color .2s; }
.footer__col a:hover { color: var(--orange); }
.footer__bottom {
  display: flex; flex-wrap: wrap; gap: 8px; justify-content: space-between;
  padding-top: 24px; font-size: .85rem; color: rgba(255, 255, 255, .45);
}

/* ---------- Sticky mobile CTA ---------- */
.sticky-cta {
  position: fixed; z-index: 90;
  left: 16px; right: 16px; bottom: 16px;
  display: flex; align-items: center; justify-content: center;
  background: var(--orange); color: #fff;
  font-weight: 700; font-size: 1rem;
  padding: 16px; border-radius: var(--radius-btn);
  box-shadow: var(--shadow-orange);
  transform: translateY(140%);
  transition: transform .4s var(--ease);
}
.sticky-cta.show { transform: translateY(0); }

/* ---------- Reveal animation ---------- */
.reveal { opacity: 1; transform: none; transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.below-fold { opacity: 0; transform: translateY(26px); }
.reveal.in { opacity: 1; transform: none; }

/* =========================================================
   Responsive
   ========================================================= */
@media (min-width: 600px) {
  .pain-grid { grid-template-columns: repeat(2, 1fr); }
  .gallery { grid-template-columns: repeat(4, 1fr); }
  .gallery--photos { grid-template-columns: repeat(3, 1fr); max-width: 780px; gap: 18px; }
  .aud-grid { grid-template-columns: repeat(4, 1fr); }
}

@media (min-width: 860px) {
  .section { padding: 96px 0; }
  .nav { display: flex; }
  .burger { display: none; }
  .hero { padding: 150px 0 96px; }
  .hero__inner { grid-template-columns: 1.02fr .98fr; gap: 40px; }
  .hero__deck { height: 470px; margin-top: 0; }
  .deck-card { width: 224px; height: 398px; }
  .value-grid { grid-template-columns: repeat(3, 1fr); }
  .steps { grid-template-columns: 1fr auto 1fr auto 1fr; }
  .step__arrow { display: block; }
  .price-grid { grid-template-columns: repeat(4, 1fr); }
  .price-card--featured { transform: scale(1.04); }
  .price-card--featured:hover { transform: scale(1.04) translateY(-5px); }
  .start-card { grid-template-columns: 1.05fr 1fr; }
  .start-card__copy { padding: 52px 44px; display: flex; flex-direction: column; justify-content: center; }
  .lead-form { padding: 44px; justify-content: center; }
  .footer__inner { grid-template-columns: 2fr 1fr 1fr 1fr; }
  .sticky-cta { display: none; }
}

@media (min-width: 1040px) {
  .hero__title { font-size: 3.7rem; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
  .reveal { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}