/* ============================================================
   RobieE — robiee.ai marketing site
   Reference build for spec §10 stack (index.html + styles.css + main.js).
   Brand tokens are FIXED (design-spec §3) — do not alter values.
   ============================================================ */

/* ---- Self-hosted Plus Jakarta Sans (spec §2). Download OFL WOFF2 from
   fonts.google.com into /fonts/ before launch. No CDN in production. ---- */
/* Plus Jakarta Sans ships as a single VARIABLE font (Google no longer serves static per-weight
   instances). One weight-range @font-face interpolates 400/500/700/800 correctly. */
@font-face{font-family:"Plus Jakarta Sans";font-style:normal;font-weight:200 800;font-display:swap;src:url("fonts/plus-jakarta-sans-var.woff2") format("woff2")}

:root{
  /* color — FIXED brand, do not alter */
  --navy:#141829; --navy-2:#1C2138;
  --purple:#7C3AED; --purple-lt:#A78BFA;
  --ink:#1F2430; --muted:#6B7280; --line:#E5E7EB;
  --accent-bg:#F5F3FF; --page:#FAFAFB; --white:#FFFFFF;
  --blue:#3B82F6; --amber:#F59E0B; --green:#10B981; --pink:#EC4899;
  --dark-body:#C3C7D6; --dark-muted:#9AA0B8;

  /* type scale */
  --fs-display:clamp(38px,6vw,64px);
  --fs-h2:clamp(28px,3.4vw,40px);
  --fs-h3:19px; --fs-body-lg:18px; --fs-body:15px;
  --fs-caption:13px; --fs-eyebrow:12.5px;

  /* space */
  --sp-2:16px; --sp-3:24px; --sp-4:32px; --sp-6:48px; --sp-8:64px; --sp-11:88px;

  /* radius & shadow */
  --r-card:16px; --r-tier:18px; --r-btn:10px; --r-chip:999px;
  --shadow-btn:0 6px 18px rgba(124,58,237,.32);
  --shadow-tier:0 20px 50px rgba(124,58,237,.25);

  /* motion */
  --ease:cubic-bezier(.22,.61,.36,1); --t-fast:150ms; --t-med:400ms;
  --maxw:1120px;
  --font:"Plus Jakarta Sans",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;font-family:var(--font);color:var(--ink);background:var(--page);
  line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden;
}
h1,h2,h3{margin:0;line-height:1.12;letter-spacing:-.02em;font-weight:800;text-wrap:balance}
p{margin:0}
a{color:inherit;text-decoration:none}
img,svg{display:block}
ul{margin:0;padding:0;list-style:none}

/* ---- Layout primitives ---- */
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px}
@media (max-width:480px){.wrap{padding:0 20px}}
.section{padding:var(--sp-11) 0}
@media (max-width:820px){.section{padding:64px 0}}
@media (max-width:480px){.section{padding:56px 0}}
.band-lines{background:var(--white);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

/* ---- Skip link (a11y §8.3) ---- */
.skip{position:absolute;left:12px;top:-56px;z-index:60;background:var(--purple);color:#fff;
  padding:10px 16px;border-radius:10px;font-weight:700;font-size:14px;transition:top var(--t-fast) var(--ease)}
.skip:focus{top:12px;outline:3px solid var(--purple-lt);outline-offset:2px}

/* ---- Component: eyebrow ---- */
.eyebrow{font-size:var(--fs-eyebrow);font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--purple)}
.eyebrow.on-dark{color:var(--purple-lt)}

/* ---- Component: section header ---- */
.sec-head{max-width:60ch;margin-bottom:44px}
.sec-head h2{font-size:var(--fs-h2);margin-top:14px}
.sec-head .lede{margin-top:16px;color:var(--muted);font-size:var(--fs-body-lg);max-width:60ch}
.tiers .sec-head h2,.contact h2{color:#fff}
.tiers .sec-head .lede{color:#AAB0C6}

/* ---- Component: buttons ---- */
.btn{display:inline-flex;align-items:center;gap:9px;font-weight:700;font-size:15px;
  padding:13px 22px;border-radius:var(--r-btn);cursor:pointer;border:0;
  transition:transform var(--t-fast) var(--ease),box-shadow var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease)}
.btn-primary{background:var(--purple);color:#fff;box-shadow:var(--shadow-btn)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(124,58,237,.42)}
.btn-ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.28)}
.btn-ghost:hover{border-color:rgba(255,255,255,.6)}
:focus-visible{outline:3px solid var(--purple-lt);outline-offset:2px}

/* ---- Component: logo lockup ---- */
.logo{display:inline-flex;align-items:center;gap:11px;font-weight:800;font-size:21px;letter-spacing:-.02em}
.logo svg{width:30px;height:30px;flex:0 0 auto}

/* ---- Component: nav ---- */
.nav{position:sticky;top:0;z-index:40;background:rgba(20,24,41,.82);
  backdrop-filter:saturate(140%) blur(10px);-webkit-backdrop-filter:saturate(140%) blur(10px);
  border-bottom:1px solid rgba(255,255,255,.07)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:66px}
.nav .logo{color:#fff}
.nav-links{display:flex;gap:26px;align-items:center}
.nav-links a{color:#C7CAD8;font-size:14.5px;font-weight:500}
.nav-links a:hover{color:#fff}
.nav-cta{background:var(--purple-lt);color:var(--navy)!important;padding:9px 16px;border-radius:8px;font-weight:700!important}
@media (max-width:720px){.nav-links a:not(.nav-cta){display:none}}

/* ---- Hero ---- */
.hero{position:relative;overflow:hidden;color:#fff;padding:96px 0 108px;
  background:radial-gradient(1100px 520px at 78% -8%,rgba(124,58,237,.34),transparent 60%),
             radial-gradient(700px 420px at 8% 108%,rgba(59,130,246,.16),transparent 62%),
             var(--navy)}
@media (max-width:720px){.hero{padding:72px 0 84px}}
.hero h1{font-size:var(--fs-display);color:#fff;max-width:15ch;line-height:1.08}
.hero h1 .accent{color:var(--purple-lt)}
.hero .sub{margin-top:22px;font-size:clamp(17px,2.1vw,20px);color:var(--dark-body);max-width:52ch;font-weight:400}
.hero .eyebrow{margin-bottom:18px}
.cta-row{margin-top:34px;display:flex;gap:14px;flex-wrap:wrap}
.hero .hero-microcopy{margin-top:16px;font-size:clamp(14px,1.5vw,15px);color:var(--dark-muted,#9aa0b4);max-width:52ch}
.stat-strip{margin-top:60px;display:grid;grid-template-columns:repeat(3,1fr);gap:22px;max-width:640px}
.stat .n{font-size:34px;font-weight:800;color:#fff;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.stat .l{font-size:13px;color:var(--dark-muted);margin-top:2px}
@media (max-width:560px){.stat-strip{grid-template-columns:1fr;gap:14px}}

/* ---- Component: card + chip ---- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
@media (max-width:820px){.grid-3{grid-template-columns:1fr}}
.card{background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);padding:26px;
  transition:border-color var(--t-fast) var(--ease)}
.card:hover{border-color:#D3D6DE}
.card.tint{background:var(--accent-bg);border-color:#E7E1FB}
.card h3{font-size:var(--fs-h3);margin:14px 0 8px;color:var(--ink)}
.card p{color:var(--muted);font-size:var(--fs-body)}
.chip{display:inline-block;font-size:11px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;
  padding:5px 10px;border-radius:var(--r-chip);background:var(--accent-bg);color:var(--purple)}
.card.tint .chip{background:#fff}

/* ---- Component: steps ---- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:32px 26px}
@media (max-width:820px){.steps{grid-template-columns:1fr}}
.step .num{width:44px;height:44px;border-radius:var(--r-chip);background:var(--purple);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:18px;box-shadow:0 6px 16px rgba(124,58,237,.3)}
.step h3{font-size:18px;margin:18px 0 7px}
.step p{color:var(--muted);font-size:var(--fs-body)}

/* ---- Tiers (navy) ---- */
.tiers{background:var(--navy);color:#fff}
.tier-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:stretch}
@media (max-width:820px){.tier-grid{grid-template-columns:1fr}}
.tier{background:var(--navy-2);border:1px solid rgba(255,255,255,.09);border-radius:var(--r-tier);
  padding:30px;display:flex;flex-direction:column}
.tier.feature{border-color:var(--purple-lt);box-shadow:0 0 0 1px var(--purple-lt),var(--shadow-tier)}
.tier .tag{font-size:12px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--purple-lt)}
.tier h3{font-size:23px;margin:12px 0 6px;color:#fff}
.tier .desc{color:#AAB0C6;font-size:var(--fs-body);min-height:48px}
.tier ul{margin:20px 0 26px;display:flex;flex-direction:column;gap:11px}
.tier li{position:relative;padding-left:26px;color:#D7DAE6;font-size:14.5px}
.tier li::before{content:"";position:absolute;left:0;top:6px;width:14px;height:14px;border-radius:50%;
  background:rgba(167,139,250,.18);box-shadow:inset 0 0 0 2px var(--purple-lt)}
.tier .foot{margin-top:auto}
.tier .price-note{font-size:13.5px;color:#8B90A8;margin-bottom:14px}
.t-btn{display:block;text-align:center;padding:12px;border-radius:var(--r-btn);font-weight:700;font-size:14.5px;
  transition:border-color var(--t-fast) var(--ease),filter var(--t-fast) var(--ease)}
.t-btn.solid{background:var(--purple-lt);color:var(--navy)}
.t-btn.solid:hover{filter:brightness(1.06)}
.t-btn.line{border:1px solid rgba(255,255,255,.22);color:#fff;background:transparent;cursor:pointer;width:100%;font-family:inherit}
.t-btn.line:hover{border-color:rgba(255,255,255,.5)}
.t-btn.solid{cursor:pointer;width:100%;font-family:inherit;border:0}

/* ---- Tier detail dialog ---- */
.tier-modal{width:min(600px,calc(100vw - 40px));max-height:92vh;overflow-y:auto;
  padding:30px 34px 32px;border:1px solid rgba(255,255,255,.12);border-radius:var(--r-tier);
  background:var(--navy-2);color:#D7DAE6;box-shadow:var(--shadow-tier)}
.tier-modal::backdrop{background:rgba(10,12,22,.62);backdrop-filter:blur(3px)}
.tier-modal .tm-x{display:flex;justify-content:flex-end;margin:-8px -8px 0 0}
.tier-modal .tm-x button{background:transparent;border:0;color:#8B90A8;font-size:18px;line-height:1;
  padding:6px 8px;cursor:pointer;border-radius:8px;font-family:inherit}
.tier-modal .tm-x button:hover{color:#fff;background:rgba(255,255,255,.06)}
.tier-modal .tm-tag{font-size:12px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--purple-lt);margin:0}
.tier-modal h3{font-size:25px;color:#fff;margin:6px 0 10px}
.tier-modal .tm-lead{font-size:16px;line-height:1.5;color:#C3C7D6;margin:0 0 14px}
.tier-modal .tm-journey{font-size:14.5px;line-height:1.5;color:#C3C7D6;background:rgba(124,58,237,.14);
  border:1px solid rgba(167,139,250,.28);border-radius:12px;padding:12px 15px;margin:0 0 16px}
.tier-modal .tm-journey span{display:block;font-size:11.5px;font-weight:700;letter-spacing:.12em;
  text-transform:uppercase;color:var(--purple-lt);margin-bottom:4px}
.tier-modal h4{font-size:12.5px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;
  color:#9AA0B8;margin:16px 0 10px}
.tier-modal ul{margin:0;display:flex;flex-direction:column;gap:8px;padding:0;list-style:none}
.tier-modal li{position:relative;padding-left:26px;color:#D7DAE6;font-size:14.5px;line-height:1.4}
.tier-modal li::before{content:"";position:absolute;left:0;top:5px;width:14px;height:14px;border-radius:50%;
  border:1.5px solid var(--purple-lt);background:rgba(167,139,250,.18)}
.tier-modal p:not(.tm-tag):not(.tm-lead):not(.tm-journey){font-size:14.5px;line-height:1.5;color:#C3C7D6;margin:0}
.tier-modal .tm-cta{margin-top:20px}

/* ---- Proof / case study ---- */
.case{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center}
@media (max-width:820px){.case{grid-template-columns:1fr;gap:28px}}
.case .lede{color:var(--muted);font-size:17px}
.case-rows{margin-top:22px;display:flex;flex-direction:column;gap:12px}
.case-row{display:flex;gap:12px;align-items:flex-start}
.case-row span:last-child{color:var(--ink);font-size:15px;padding-top:2px}
.pending{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;color:var(--amber);
  background:rgba(245,158,11,.1);border:1px solid rgba(245,158,11,.3);padding:6px 12px;border-radius:var(--r-chip);
  margin-top:20px;font-weight:600}
.panel{background:var(--navy);border-radius:20px;padding:34px;color:#fff}
.panel .kbig{margin-top:16px;display:grid;grid-template-columns:1fr 1fr;gap:22px 26px}
.panel .n{font-size:30px;font-weight:800;letter-spacing:-.02em}
.panel .n.p{color:var(--purple-lt)} .panel .n.b{color:#7FB0FF} .panel .n.g{color:#4FD6A0}
.panel .l{font-size:13px;color:var(--dark-muted);margin-top:2px}
.panel blockquote{margin:22px 0 0;font-size:17px;color:var(--dark-body);line-height:1.55;font-style:italic}

/* ---- Why (icon tiles) ---- */
.why .ico{width:38px;height:38px;border-radius:10px;background:var(--accent-bg);
  display:flex;align-items:center;justify-content:center;margin-bottom:14px}
.why .ico span{width:16px;height:16px;border-radius:4px;background:var(--purple)}
.why .ico.g{background:rgba(16,185,129,.12)} .why .ico.g span{background:var(--green)}
.why .ico.b{background:rgba(59,130,246,.12)} .why .ico.b span{background:var(--blue)}

/* ---- About ---- */
.about .wrap{display:grid;grid-template-columns:.85fr 1.15fr;gap:44px;align-items:center}
@media (max-width:820px){.about .wrap{grid-template-columns:1fr;gap:26px}}
.card-lg{background:var(--accent-bg);border:1px solid #E7E1FB;border-radius:20px;padding:34px}
.card-lg .logo{color:var(--ink)}
.about h2{font-size:clamp(26px,3.2vw,36px);margin-top:14px}
.about .who{margin-top:20px;color:var(--ink);font-size:16px;font-weight:600}
.about .card-lg .sub{margin-top:12px;color:var(--muted);font-size:16px}
.about .body p{color:var(--muted);font-size:17px;margin-top:16px}

/* ---- Diagnostic funnel SKU cards (public prices) ---- */
.sku-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:36px}
@media (max-width:820px){.sku-grid{grid-template-columns:1fr}}
.sku{background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);padding:26px;display:flex;flex-direction:column}
.sku.feature{border-color:var(--purple);box-shadow:0 0 0 1px var(--purple),var(--shadow-tier)}
.sku-name{font-size:13px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.sku-price{font-size:38px;font-weight:800;color:var(--ink);letter-spacing:-.02em;margin:6px 0 16px;font-variant-numeric:tabular-nums}
.sku-price span{font-size:16px;font-weight:600;color:var(--muted)}
.sku ul{display:flex;flex-direction:column;gap:9px}
.sku li{position:relative;padding-left:22px;font-size:14.5px;color:var(--ink)}
.sku li::before{content:"";position:absolute;left:0;top:6px;width:12px;height:12px;border-radius:50%;background:var(--accent-bg);box-shadow:inset 0 0 0 2px var(--purple)}

/* ---- RobieE at Home (Line 2 — quiet waitlist band) ---- */
.athome{background:var(--page);border-top:1px solid var(--line);padding:56px 0}
.athome h2{font-size:clamp(24px,3vw,32px);margin-top:12px;max-width:20ch}
.athome .lede{margin-top:16px;color:var(--muted);font-size:var(--fs-body-lg);max-width:64ch}
.athome-note{margin-top:14px;color:var(--ink);font-size:14px;font-weight:600}
.link-cta{display:inline-block;margin-top:20px;color:var(--purple);font-weight:700;font-size:15px;
  border-bottom:2px solid transparent;transition:border-color var(--t-fast) var(--ease)}
.link-cta:hover{border-color:var(--purple)}

/* ---- Contact close ---- */
.contact{color:#fff;background:radial-gradient(900px 460px at 82% 120%,rgba(124,58,237,.32),transparent 60%),var(--navy)}
.contact h2{font-size:clamp(30px,4vw,46px);max-width:18ch}
.contact .lede{margin-top:18px;color:#BFC4D6;font-size:var(--fs-body-lg);max-width:48ch}

/* ---- Footer ---- */
.footer{background:var(--navy);color:#8B90A8;padding:34px 0;border-top:1px solid rgba(255,255,255,.08)}
.footer .wrap{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}
.footer .logo{color:#fff;font-size:18px}
.footer .fnote{font-size:13px;color:var(--dark-muted)}

/* ============================================================
   Motion (spec §7) — progressive enhancement.
   Hidden states apply ONLY when JS is on and motion is allowed.
   ============================================================ */
.js [data-anim]{opacity:0;transform:translateY(16px);
  transition:opacity var(--t-med) var(--ease),transform var(--t-med) var(--ease)}
.js [data-anim="hero"]{transform:translateY(12px)}
[data-anim].is-in{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .js [data-anim]{opacity:1!important;transform:none!important;transition:none!important}
  .btn,.card,.t-btn{transition:none!important}
}