/* ============================================================
   FENN — marketing site
   Built on the Fenn design system (colors_and_type.css)
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--fg-1);
  background: var(--bg-surface);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a { color: inherit; }
img { max-width: 100%; }

:root { --maxw: 1200px; --gutter: 40px; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gutter); }

/* ---------- shared section rhythm ---------- */
section { position: relative; }
.eyebrow {
  font-size: 14px; font-weight: var(--w-bold);
  letter-spacing: .08em; text-transform: uppercase;
  color: var(--fenn-blue);
}
.sec-head { max-width: 720px; }
.sec-head h2 {
  font-size: clamp(34px, 4.6vw, 54px); line-height: 1.04;
  font-weight: var(--w-bold); letter-spacing: -.03em;
  margin: 16px 0 0;
}
.sec-head p {
  font-size: clamp(18px, 2vw, 21px); line-height: 1.5;
  font-weight: var(--w-medium); color: var(--fg-1); opacity: .6;
  margin: 18px 0 0; max-width: 560px;
}

/* ============================================================
   NAV
   ============================================================ */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(242,242,242,.72);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid rgba(0,0,0,.04);
}
.nav .wrap { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.brand { display: flex; align-items: center; gap: 4px; text-decoration: none; }
.brand img { width: 40px; height: 45px; display: block; margin-left: -6px; }
.brand span { font-size: 21px; font-weight: var(--w-bold); letter-spacing: var(--track-tight); }
.nav-links { display: flex; align-items: center; gap: 30px; }
.nav-links a.link { font-size: 15px; font-weight: var(--w-medium); text-decoration: none; opacity: .7; transition: opacity .15s; }
.nav-links a.link:hover { opacity: 1; }
.btn-getapp {
  display: inline-flex; align-items: center; height: 40px; padding: 0 18px;
  border-radius: var(--r-pill); background: var(--bg-surface);
  font-size: 15px; font-weight: var(--w-semibold); letter-spacing: var(--track-tight);
  text-decoration: none; box-shadow: var(--shadow-card);
  transition: transform .15s ease;
}
.btn-getapp:hover { transform: translateY(-1px); }

/* ============================================================
   APP STORE BADGE
   ============================================================ */
.appstore {
  display: inline-flex; align-items: center; gap: 11px;
  height: 56px; padding: 0 22px 0 18px;
  background: #000; color: #fff; border-radius: 14px;
  text-decoration: none; box-shadow: 0 10px 24px rgba(0,0,0,.16);
  transition: transform .18s ease, box-shadow .18s ease;
}
.appstore:hover { transform: translateY(-2px); box-shadow: 0 16px 30px rgba(0,0,0,.22); }
.appstore svg { width: 26px; height: 26px; flex: none; }
.appstore .as-txt { display: flex; flex-direction: column; line-height: 1; text-align: left; }
.appstore .as-sm { font-size: 11px; font-weight: var(--w-medium); opacity: .85; letter-spacing: .02em; }
.appstore .as-lg { font-size: 19px; font-weight: var(--w-semibold); letter-spacing: -.01em; margin-top: 3px; }
.appstore.light { background: #fff; color: #000; }
.free-pill { font-size: 14px; font-weight: var(--w-bold); letter-spacing: var(--track-tight); color: var(--success); }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  background:
    radial-gradient(110% 80% at 90% 8%, rgba(0,180,255,.16), rgba(0,180,255,0) 55%),
    var(--bg-app);
  padding: 80px 0 96px;
  overflow: hidden;
}
.hero .wrap { display: grid; grid-template-columns: minmax(auto, 500px) minmax(340px, 430px); gap: 56px; align-items: center; justify-content: center; }
.hero h1 {
  font-size: clamp(42px, 5.6vw, 70px); line-height: 1.0;
  font-weight: var(--w-bold); letter-spacing: -.035em; margin: 18px 0 0;
}
#rotW { color: var(--u-10); white-space: nowrap; display: inline-block;
  transition: opacity .35s ease, transform .35s ease; }
.hero p.sub {
  font-size: clamp(18px, 2.1vw, 22px); line-height: 1.45;
  font-weight: var(--w-medium); color: var(--fg-1); opacity: .62;
  margin: 26px 0 36px; max-width: 480px;
}
.hero .cta { display: flex; align-items: center; gap: 18px; }
/* ===== Hero conversation (borderless, on the page) ===== */
.hero-convo {
  justify-self: center;
  position: relative;
  width: 100%; max-width: 430px; height: 460px; margin: 0 auto;
}
.hero-convo .chat { position: absolute; inset: 0; display: flex; flex-direction: column; }
.chat-body { position: relative; flex: 1 1 auto; overflow: hidden;
  -webkit-mask-image: linear-gradient(to bottom, transparent 0, #000 64px, #000 100%);
  mask-image: linear-gradient(to bottom, transparent 0, #000 64px, #000 100%); }
.chat-track { position: absolute; left: 4px; right: 4px; top: 0; display: flex; flex-direction: column; gap: 14px; transition: transform .5s cubic-bezier(.2,.7,.3,1); will-change: transform; }

.chat-track .msg { display: flex; flex-direction: column; align-items: flex-start; max-width: 100%; }
.chat-track .msg .uname { font-size: 12px; font-weight: var(--w-bold); letter-spacing: .02em; margin: 0 0 5px 16px; }
.chat-track .bubble { max-width: 80%; padding: 12px 16px; border-radius: 21px; border-bottom-left-radius: 7px;
  background: #fff; color: var(--fg-1); font-size: 16px; font-weight: var(--w-medium); line-height: 1.4; letter-spacing: var(--track-tight);
  box-shadow: 0 2px 8px rgba(0,0,0,.07), inset 0 1px 0 rgba(255,255,255,.7); }

.chat-track .frow { display: flex; gap: 10px; align-items: flex-end; max-width: 90%; }
.chat-track .bavatar { width: 40px; height: 40px; flex: none; align-self: flex-end; }
.chat-track .bavatar img { width: 40px; height: 40px; }
.chat-track .fcol { display: flex; flex-direction: column; }
.chat-track .fcol .uname { color: var(--fenn-blue); }

/* Fenn posts — tinted + lifted so they read as the assistant, not just another sender */
.chat-track .msg.fenn .bubble { background: #EAF6FF; box-shadow: 0 10px 24px -6px rgba(0,150,255,.30), inset 0 1px 0 rgba(255,255,255,.8); }

.chat-track .ev { display: flex; align-items: center; gap: 11px; margin-top: 9px; padding: 11px; background: #fff; border-radius: 14px; box-shadow: 0 2px 8px rgba(0,0,0,.08), inset 0 1px 0 rgba(255,255,255,.7); }
.chat-track .ev .evi { width: 40px; height: 40px; flex: none; border-radius: 11px; background: var(--grad-blue); display: grid; place-items: center; box-shadow: var(--grad-blue-glow); }
.chat-track .ev .evi img { width: 21px; height: 21px; }
.chat-track .ev .evt { font-size: 15px; font-weight: var(--w-bold); color: var(--fg-1); line-height: 1.2; }
.chat-track .ev .evs { font-size: 13px; font-weight: var(--w-medium); color: var(--fg-1); opacity: .5; margin-top: 2px; }

.chat-track .tbubble { display: flex; align-items: flex-end; gap: 10px; }
.chat-track .tbubble .dots { display: flex; gap: 4px; padding: 14px 17px; background: #fff; border-radius: 21px; border-bottom-left-radius: 7px; box-shadow: 0 2px 8px rgba(0,0,0,.07), inset 0 1px 0 rgba(255,255,255,.7); }
.chat-track .tbubble .dots span { width: 7px; height: 7px; border-radius: 50%; background: var(--fg-1); opacity: .3; animation: tdot 1.1s infinite ease-in-out; }
.chat-track .tbubble .dots span:nth-child(2) { animation-delay: .18s; }
.chat-track .tbubble .dots span:nth-child(3) { animation-delay: .36s; }
@keyframes tdot { 0%,60%,100% { transform: translateY(0); opacity: .3; } 30% { transform: translateY(-3px); opacity: .75; } }

/* enter states + armed hide — only when JS + motion are on, so no-JS/reduced-motion shows the full thread */
@media (prefers-reduced-motion: no-preference) {
  .js .chat-track .msg { opacity: 0; transform: translateY(8px); }
  .js .chat-track.armed .msg:not(.vis) { display: none; }
}
.js .chat-track .msg.vis { display: flex; }
.js .chat-track .msg.show { opacity: 1; transform: none; transition: opacity .34s ease, transform .34s ease; }
.chat-track .tbubble { opacity: 0; transform: translateY(8px); }
.chat-track .tbubble.show { opacity: 1; transform: none; transition: opacity .3s ease, transform .3s ease; }

/* crew chips strip */
.crew-strip { background: var(--bg-surface); padding: 28px 0; border-bottom: 1px solid var(--line); }
.crew-strip .wrap { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; justify-content: center; }
.crew-strip .lbl { font-size: 14px; font-weight: var(--w-semibold); opacity: .45; }
.chip {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 9px 16px; border-radius: var(--r-pill);
  background: var(--bg-app); font-size: 15px; font-weight: var(--w-semibold);
  letter-spacing: var(--track-tight);
}
.chip .dot { width: 9px; height: 9px; border-radius: 50%; }

/* ============================================================
   FEATURES (3 cards)
   ============================================================ */
.features { padding: 110px 0; background: var(--bg-surface); }
.feat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 56px; }
.feat-card {
  background: var(--bg-app); border-radius: 24px; padding: 32px;
  box-shadow: var(--shadow-card);
}
.feat-card .ficon {
  width: 54px; height: 54px; border-radius: 16px;
  display: grid; place-items: center; margin-bottom: 22px;
  background: var(--grad-blue); box-shadow: var(--grad-blue-glow);
}
.feat-card .ficon img { width: 26px; height: 26px; }
.feat-card h3 { font-size: 23px; font-weight: var(--w-bold); letter-spacing: -.02em; margin: 0 0 10px; }
.feat-card p { font-size: 17px; line-height: 1.5; font-weight: var(--w-medium); color: var(--fg-1); opacity: .6; margin: 0; }

/* ============================================================
   HOW IT WORKS
   ============================================================ */
.how { padding: 110px 0; background: var(--bg-app); }
.how-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; margin-top: 56px; }
.step .num {
  font-size: 15px; font-weight: var(--w-bold); color: var(--fenn-blue);
  width: 40px; height: 40px; border-radius: 50%; background: var(--bg-surface);
  display: grid; place-items: center; box-shadow: var(--shadow-card); margin-bottom: 20px;
}
.step h3 { font-size: 22px; font-weight: var(--w-bold); letter-spacing: -.02em; margin: 0 0 10px; }
.step p { font-size: 17px; line-height: 1.5; font-weight: var(--w-medium); color: var(--fg-1); opacity: .6; margin: 0; }

/* ============================================================
   SHOWCASE (sticky phone swap)
   ============================================================ */
.showcase { background: var(--bg-surface); padding: 100px 0 40px; }
.showcase .head-center { text-align: center; max-width: 680px; margin: 0 auto 12px; }
.showcase .head-center h2 { font-size: clamp(34px, 4.6vw, 54px); line-height: 1.04; font-weight: var(--w-bold); letter-spacing: -.03em; margin: 14px 0 0; }
.sc-stage { display: grid; grid-template-columns: 1fr 320px; gap: 64px; align-items: start; margin-top: 40px; }
.sc-steps { display: flex; flex-direction: column; }
.sc-step { min-height: 78vh; display: flex; flex-direction: column; justify-content: center; padding: 30px 0; }
.sc-step .kicker { font-size: 14px; font-weight: var(--w-bold); letter-spacing: .08em; text-transform: uppercase; color: var(--fenn-blue); transition: opacity .3s; }
.js .sc-step .kicker { opacity: .55; }
.sc-step h3 { font-size: clamp(30px, 3.6vw, 44px); line-height: 1.08; font-weight: var(--w-bold); letter-spacing: -.03em; margin: 16px 0 0; transition: opacity .4s ease, transform .4s ease; }
.js .sc-step h3 { opacity: .32; }
.sc-step p { font-size: 19px; line-height: 1.5; font-weight: var(--w-medium); color: var(--fg-1); overflow: hidden; transition: opacity .4s ease, max-height .4s ease, margin .4s ease; margin: 0; max-width: 440px; }
.js .sc-step p { opacity: 0; max-height: 0; margin: 0; }
.sc-step.active .kicker { opacity: 1; }
.sc-step.active h3 { opacity: 1; }
.sc-step.active p { opacity: .62; max-height: 140px; margin: 18px 0 0; }
/* fallback: if the observer never fires, show all step copy (no transition so
   it commits even on engines that don't animate opacity) */
.sc-stage.sc-fallback .sc-step .kicker,
.sc-stage.sc-fallback .sc-step h3,
.sc-stage.sc-fallback .sc-step p { transition: none; }
.sc-stage.sc-fallback .sc-step .kicker,
.sc-stage.sc-fallback .sc-step h3 { opacity: 1; }
.sc-stage.sc-fallback .sc-step p { opacity: .62; max-height: 240px; margin: 18px 0 0; }

.sc-shot { display: none; }
.sc-phonewrap { position: sticky; top: max(94px, calc(50vh - 312px)); justify-self: end; }
.sc-phone {
  position: relative; width: 288px; aspect-ratio: 35 / 76;
  background: #fff; border: 8px solid #fff; border-radius: 50px;
  box-shadow: 0 50px 90px -28px rgba(0,0,0,.34), var(--shadow-card);
  overflow: hidden;
}
.sc-phone img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: top center; opacity: 0; transition: opacity .5s ease; }
.sc-phone img.show { opacity: 1; }
.sc-dots { display: flex; flex-direction: column; gap: 10px; position: absolute; right: -28px; top: 50%; transform: translateY(-50%); }
.sc-dots i { width: 8px; height: 8px; border-radius: 50%; background: rgba(0,0,0,.15); transition: background .3s, height .3s; }
.sc-dots i.on { background: var(--fenn-blue); height: 22px; }

/* ============================================================
   TESTIMONIALS
   ============================================================ */
.testi { padding: 110px 0; background: var(--bg-app); }
.testi-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 56px; }
.tcard { background: var(--bg-surface); border-radius: 24px; padding: 30px; box-shadow: var(--shadow-card); display: flex; flex-direction: column; }
.tcard .quote { font-size: 19px; line-height: 1.5; font-weight: var(--w-medium); letter-spacing: -.01em; margin: 0 0 26px; }
.tcard .who { display: flex; align-items: center; gap: 12px; margin-top: auto; }
.tcard .who img { width: 44px; height: 44px; border-radius: 50%; object-fit: cover; }
.tcard .who .nm { font-size: 16px; font-weight: var(--w-bold); }
.tcard .who .rl { font-size: 14px; font-weight: var(--w-medium); opacity: .5; }
.tcard .crew-tag { align-self: flex-start; font-size: 12px; font-weight: var(--w-bold); letter-spacing: var(--track-caps); padding: 6px 12px; border-radius: var(--r-pill); margin-bottom: 22px; }

/* ============================================================
   CTA + CONTACT + FOOTER
   ============================================================ */
.cta-band { background: linear-gradient(165deg, var(--fenn-blue-deep) 0%, var(--fenn-blue) 72%, #00a6ee 100%); color: #fff; padding: 110px 0; text-align: center; }
.cta-band img.mascot { width: 116px; height: 130px; margin-bottom: 14px; }
.cta-band h2 { font-size: clamp(36px, 5vw, 60px); line-height: 1.02; font-weight: var(--w-bold); letter-spacing: -.035em; margin: 0; }
.cta-band p { font-size: clamp(18px, 2vw, 22px); font-weight: var(--w-medium); color: rgba(255,255,255,.85); margin: 20px 0 38px; }
.cta-band .cta { display: inline-flex; align-items: center; gap: 18px; }
.cta-band .free-pill { color: #fff; }

.contact { padding: 100px 0; background: var(--bg-surface); text-align: center; }
.contact h2 { font-size: clamp(30px, 3.6vw, 42px); font-weight: var(--w-bold); letter-spacing: -.03em; margin: 0; }
.contact p { font-size: 19px; font-weight: var(--w-medium); opacity: .6; margin: 16px 0 28px; }
.contact a.mail {
  display: inline-flex; align-items: center; height: 52px; padding: 0 28px;
  background: var(--bg-app); border-radius: var(--r-pill);
  font-size: 17px; font-weight: var(--w-semibold); text-decoration: none;
  box-shadow: var(--shadow-card);
}

footer { background: var(--bg-app); padding: 48px 0; border-top: 1px solid var(--line); }
footer .wrap { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 20px; }
footer .brand span { font-size: 18px; }
footer .brand img { width: 34px; height: 38px; }
footer .flinks { display: flex; gap: 26px; }
footer .flinks a { font-size: 15px; font-weight: var(--w-medium); text-decoration: none; opacity: .65; }
footer .copy { font-size: 14px; font-weight: var(--w-medium); opacity: .4; width: 100%; }

/* ============================================================
   REVEAL ANIMATIONS
   ============================================================ */
.reveal { transition: opacity .7s cubic-bezier(.2,.7,.3,1), transform .7s cubic-bezier(.2,.7,.3,1); }
.js .reveal { opacity: 0; transform: translateY(22px); }
.js .reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: .08s; }
.reveal.d2 { transition-delay: .16s; }
.reveal.d3 { transition-delay: .24s; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 980px) {
  :root { --gutter: 24px; }
  .hero .wrap { grid-template-columns: 1fr; gap: 40px; }
  .hero-convo { justify-self: center; max-width: 440px; height: 440px; }
  .feat-grid, .how-grid, .testi-grid { grid-template-columns: 1fr; }
  .sc-stage { grid-template-columns: 1fr; gap: 0; margin-top: 8px; }
  .sc-phonewrap { display: none; }
  .sc-steps { gap: 0; }
  .sc-step { min-height: auto; padding: 44px 0; align-items: center; text-align: center; }
  .sc-step + .sc-step { border-top: 1px solid var(--line); }
  .sc-shot {
    display: block; width: min(238px, 62vw); aspect-ratio: 35 / 76;
    margin: 0 auto 26px; background: #fff; border: 6px solid #fff;
    border-radius: 42px; overflow: hidden;
    box-shadow: 0 30px 56px -20px rgba(0,0,0,.30), var(--shadow-card);
  }
  .sc-shot img { width: 100%; height: 100%; object-fit: cover; object-position: top center; display: block; }
  .sc-dots { display: none; }
  .js .sc-step .kicker, .js .sc-step h3 { opacity: 1; }
  .js .sc-step p { opacity: .62; max-height: none; margin: 16px auto 0; max-width: 440px; }
  .nav-links a.link { display: none; }
}
@media (max-width: 560px) {
  .hero h1 { font-size: 40px; }
  #rotW { white-space: normal; }
}