/* Allternit Services — design system, matched to allternit.com's tokens & motion language */

:root {
  --cream: #F5F3EF;
  --card-beige: #E8E2D9;
  --card-hover: #DDD5C7;
  --beige: #D4B996;
  --dark: #1A1A1A;
  --dark-2: #333333;
  --coral: #E07A5F;
  --coral-deep: #C94520;
  --muted: #666666;
  --muted-faint: #8A8377;
  --stone-200: #E7E2D8;
  --font-ui: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-serif: "Newsreader", Georgia, "Times New Roman", serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, monospace;
  --ease-expo-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.175, 0.885, 0.32, 1.275);
  --radius-btn: 12px;
  --radius-card: 16px;
  --shadow-card: 0 4px 20px rgba(0,0,0,.08);
  --shadow-card-hover: 0 20px 40px rgba(0,0,0,.12);
  --maxw: 1152px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-ui);
  background: var(--cream);
  color: var(--dark);
  line-height: 1.6;
  font-size: 16.5px;
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; display: block; }
a { color: var(--coral-deep); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ---------- header ---------- */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  height: 72px;
  background: rgba(245,243,239,.95);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  transition: height .3s var(--ease-expo-out), box-shadow .3s var(--ease-expo-out);
}
.site-header.is-scrolled { height: 60px; box-shadow: 0 1px 2px rgba(0,0,0,.05); }
.site-header .wrap { height: 100%; display: flex; align-items: center; gap: 28px; }
.brand { display: flex; align-items: center; gap: 4px; font-family: var(--font-serif); font-size: 21px; letter-spacing: -.02em; color: var(--dark); transition: transform .3s var(--ease-expo-out); }
.brand:hover { text-decoration: none; transform: scale(1.04); }
.brand .a-mark { color: var(--coral); }
.brand .brand-sub { font-family: var(--font-mono); font-size: 12px; color: var(--muted); letter-spacing: .06em; margin-left: 6px; text-transform: uppercase; }
.site-nav { display: flex; margin-left: auto; align-items: center; }
.site-nav-links { display: flex; gap: 26px; align-items: center; }
.nav-link { position: relative; color: var(--dark); font-size: 14.5px; font-weight: 500; }
.nav-link::after { content: ""; position: absolute; bottom: -4px; left: 50%; width: 0; height: 1px; background: var(--dark); transition: width .3s var(--ease-expo-out); transform: translateX(-50%); }
.nav-link:hover { text-decoration: none; }
.nav-link:hover::after, .nav-link.active::after { width: 100%; }
.nav-link.active { color: var(--coral-deep); }

.menu-toggle {
  display: none; background: none; border: none; cursor: pointer;
  padding: 8px; margin-left: auto; width: 38px; height: 38px;
}
.menu-toggle span {
  display: block; width: 20px; height: 2px; background: var(--dark);
  margin: 5px auto; transition: transform .25s var(--ease-expo-out), opacity .2s ease;
}
.menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu {
  display: none; position: fixed; top: 72px; left: 0; right: 0; z-index: 49;
  background: rgba(245,243,239,.98); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--stone-200); box-shadow: var(--shadow-card);
  padding: 8px 24px 24px; flex-direction: column;
}
.mobile-menu.is-open { display: flex; }
.mobile-menu .nav-link { padding: 14px 2px; font-size: 16px; border-bottom: 1px solid var(--stone-200); }
.mobile-menu .nav-link::after { display: none; }
.mobile-menu .btn { margin-top: 16px; }
.site-header.is-scrolled + .mobile-menu { top: 60px; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: var(--font-ui); font-weight: 500; font-size: 15.5px;
  border-radius: var(--radius-btn); padding: 13px 26px; border: 1px solid transparent;
  transition: all .3s ease; cursor: pointer; white-space: nowrap;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--dark); color: #fff; }
.btn-primary:hover { background: var(--dark-2); transform: scale(1.05); }
.btn-secondary { background: transparent; color: var(--dark); border-color: var(--dark); }
.btn-secondary:hover { background: var(--dark); color: #fff; }
.btn-on-dark { background: var(--coral); color: var(--dark); }
.btn-on-dark:hover { background: #EC9276; transform: scale(1.05); }
.btn-small { font-size: 14px; padding: 9px 18px; }
.btn-block { width: 100%; }

/* ---------- typography ---------- */
.eyebrow {
  font-family: var(--font-mono); font-size: 12.5px; letter-spacing: .1em;
  text-transform: uppercase; color: var(--coral-deep); display: flex; align-items: center; gap: 10px;
}
.eyebrow::before { content: ""; width: 8px; height: 8px; border-radius: 2px; background: var(--coral); display: inline-block; }
h1, h2, h3 { font-family: var(--font-serif); font-weight: 500; letter-spacing: -.02em; color: var(--dark); line-height: 1.08; }
h1 { font-size: clamp(2.75rem, 6.5vw, 4.75rem); line-height: 1.05; letter-spacing: -.03em; }
h2 { font-size: clamp(1.9rem, 4vw, 2.75rem); }
h3 { font-family: var(--font-ui); font-weight: 600; font-size: 19px; letter-spacing: -.01em; }
.lede { font-size: clamp(17px, 1.6vw, 19.5px); color: var(--muted); max-width: 58ch; line-height: 1.65; }
.section { padding: 100px 0; }
.section-head { max-width: 640px; display: grid; gap: 16px; margin-bottom: 52px; }
.mono-note { font-family: var(--font-mono); font-size: 12.5px; color: var(--muted-faint); }

/* ---------- hero ---------- */
.hero { position: relative; padding: 168px 0 88px; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; z-index: 0; pointer-events: none; }
.hero-blob { position: absolute; border-radius: 50%; filter: blur(110px); opacity: .55; }
.hero-blob.b1 { width: 560px; height: 560px; top: -140px; left: -220px; background: radial-gradient(circle, rgba(224,122,95,.35) 0%, transparent 70%); animation: pulseSlow 5s ease-in-out infinite; }
.hero-blob.b2 { width: 460px; height: 460px; bottom: -160px; right: -160px; background: radial-gradient(circle, rgba(212,185,150,.45) 0%, transparent 70%); animation: pulseSlow 5s ease-in-out infinite 1.6s; }
@keyframes pulseSlow { 0%,100% { opacity: .45; } 50% { opacity: .75; } }
.hero-noise { position: absolute; inset: 0; opacity: .035; background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 400 400' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E"); }
.hero .wrap { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr); gap: 56px; align-items: center; }
.hero-copy { display: grid; gap: 22px; justify-items: start; }
.hero-headline .line { overflow: hidden; }
.hero-headline .line span { display: block; }
.hero-ctas { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 6px; }
.hero-meta { font-family: var(--font-mono); font-size: 12.5px; color: var(--muted-faint); letter-spacing: .02em; }
.hero-art { position: relative; }

/* ---------- cards ---------- */
.card {
  display: flex; flex-direction: column;
  background: var(--card-beige); border-radius: var(--radius-card);
  padding: 30px; box-shadow: var(--shadow-card);
  transition: background .3s ease, transform .3s var(--ease-expo-out), box-shadow .3s ease;
}
.card:hover { background: var(--card-hover); transform: translateY(-6px); box-shadow: var(--shadow-card-hover); }
.card h3 { margin-bottom: 8px; }
.card p { color: var(--muted); font-size: 15px; }
.card .price { font-family: var(--font-mono); font-size: 13px; color: var(--coral-deep); margin-top: 14px; }
.card .card-cta { margin-top: 20px; }
.card.offer-card .btn { margin-top: auto; align-self: flex-start; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }

.card-icon { width: 46px; height: 46px; border-radius: 12px; background: #fff; display: grid; place-items: center; margin-bottom: 20px; box-shadow: 0 2px 8px rgba(0,0,0,.06); }
.card-icon svg { width: 22px; height: 22px; }

/* feature (audit) panel */
.feature-panel {
  display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center;
  background: var(--dark); color: var(--cream); border-radius: 24px;
  padding: 60px; box-shadow: 0 30px 70px rgba(26,26,26,.28);
}
.feature-panel h2 { color: var(--cream); }
.feature-panel .lede { color: #C9C2B8; }
.feature-panel .eyebrow { color: var(--coral); }
.feature-panel .eyebrow::before { background: var(--coral); }
.feature-list { display: grid; gap: 13px; margin: 22px 0 28px; padding: 0; list-style: none; }
.feature-list li { display: flex; gap: 12px; align-items: baseline; color: #E9E2D8; font-size: 15.5px; }
.feature-list li::before { content: ""; width: 7px; height: 7px; border-radius: 2px; background: var(--coral); flex: 0 0 7px; transform: translateY(-1px); }
.feature-price { font-family: var(--font-mono); font-size: 14px; color: var(--coral); margin-bottom: 20px; }

/* run tiers */
.tier { display: grid; gap: 15px; }
.tier.tier-featured { background: var(--dark); }
.tier.tier-featured h3, .tier.tier-featured .tier-price { color: var(--cream); }
.tier.tier-featured .tier-price span { color: #C9C2B8; }
.tier.tier-featured ul li { color: #E9E2D8; }
.tier.tier-featured:hover { background: #262626; }
.tier .tier-price { font-family: var(--font-serif); font-size: 36px; color: var(--dark); }
.tier .tier-price span { font-family: var(--font-mono); font-size: 13px; color: var(--muted); }
.tier ul { list-style: none; display: grid; gap: 10px; }
.tier ul li { display: flex; gap: 10px; align-items: baseline; font-size: 15px; color: var(--muted); }
.tier ul li::before { content: ""; width: 6px; height: 6px; border-radius: 2px; background: var(--coral); flex: 0 0 6px; }
.tier-flag { font-family: var(--font-mono); font-size: 11.5px; letter-spacing: .08em; text-transform: uppercase; color: var(--coral-deep); background: rgba(224,122,95,.15); border-radius: 5px; padding: 4px 9px; justify-self: start; }
.tier.tier-featured .tier-flag { color: var(--coral); background: rgba(224,122,95,.2); }

/* process */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; counter-reset: step; }
.step { position: relative; padding: 28px; background: #fff; border-radius: var(--radius-card); box-shadow: var(--shadow-card); }
.step::before {
  counter-increment: step; content: "0" counter(step);
  font-family: var(--font-mono); font-size: 13px; color: var(--coral-deep);
  display: block; margin-bottom: 16px; letter-spacing: .08em;
}
.step h3 { font-size: 19px; margin-bottom: 7px; }
.step p { font-size: 14.5px; color: var(--muted); }

/* principles strip */
.principles { background: #fff; border-top: 1px solid var(--stone-200); border-bottom: 1px solid var(--stone-200); }
.principles .wrap { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; padding-top: 48px; padding-bottom: 48px; }
.principle { display: grid; gap: 7px; }
.principle strong { font-size: 15px; font-family: var(--font-ui); }
.principle span { font-size: 13.5px; color: var(--muted); }

/* cross-link band */
.band {
  background: linear-gradient(120deg, var(--card-beige), var(--beige) 140%);
  border-radius: 24px; padding: 44px 52px;
  display: flex; align-items: center; justify-content: space-between; gap: 28px;
}
.band h2 { font-size: 27px; }
.band p { color: var(--dark); opacity: .72; max-width: 52ch; }

/* catalog (small-business page) */
.cat-section { margin-bottom: 68px; }
.cat-section > h2 { margin-bottom: 8px; }
.cat-section > .cat-sub { color: var(--muted); margin-bottom: 30px; max-width: 62ch; }
.cat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.svc { display: flex; flex-direction: column; background: #fff; border-radius: var(--radius-card); padding: 24px; box-shadow: var(--shadow-card); transition: transform .3s var(--ease-expo-out), box-shadow .3s ease; }
.svc:hover { transform: translateY(-5px); box-shadow: var(--shadow-card-hover); }
.svc h3 { font-size: 17px; margin-bottom: 7px; }
.svc p { font-size: 14px; color: var(--muted); flex: 1; }
.svc-foot { display: flex; align-items: center; justify-content: space-between; margin-top: 18px; gap: 10px; }
.svc-foot .price { font-family: var(--font-mono); font-size: 13px; color: var(--dark); }
.svc-foot .price em { font-style: normal; color: var(--muted-faint); font-size: 11px; display: block; }

/* contact */
.contact-panel { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; }
.checklist { list-style: none; display: grid; gap: 13px; margin-top: 20px; }
.checklist li { display: flex; gap: 12px; align-items: baseline; color: var(--muted); }
.checklist li::before { content: ""; width: 7px; height: 7px; border-radius: 2px; background: var(--coral); flex: 0 0 7px; }
.contact-card { background: var(--card-beige); border-radius: 24px; padding: 38px; box-shadow: var(--shadow-card); display: grid; gap: 16px; align-content: start; }
.contact-card hr { border: none; border-top: 1px solid var(--card-hover); margin: 4px 0; }

/* footer */
.site-footer { border-top: 1px solid var(--stone-200); margin-top: 100px; background: #fff; }
.site-footer .wrap { padding: 44px 24px; display: flex; flex-wrap: wrap; gap: 24px; align-items: center; justify-content: space-between; }
.site-footer p, .site-footer a { font-size: 13.5px; color: var(--muted); }
.footer-links { display: flex; gap: 20px; }

/* ---------- scroll-reveal (JS-driven) ---------- */
.reveal { opacity: 0; transform: translateY(28px); }
.reveal.is-visible { animation: revealUp .8s var(--ease-expo-out) forwards; }
@keyframes revealUp { to { opacity: 1; transform: translateY(0); } }

/* ---------- responsive ---------- */
@media (max-width: 960px) {
  .hero .wrap, .feature-panel, .contact-panel { grid-template-columns: 1fr; }
  .hero { padding-top: 140px; }
  .hero-art { max-width: 460px; }
  .grid-3, .steps, .cat-grid { grid-template-columns: repeat(2, 1fr); }
  .principles .wrap { grid-template-columns: repeat(2, 1fr); }
  .feature-panel { padding: 40px; }
  .band { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 780px) {
  .site-nav-links { display: none; }
  .menu-toggle { display: block; }
}
@media (max-width: 620px) {
  .grid-3, .grid-2, .steps, .cat-grid { grid-template-columns: 1fr; }
  .principles .wrap { grid-template-columns: 1fr; }
  .section { padding: 68px 0; }
  .feature-panel { padding: 30px; }
}