/* ===== Royce Labs — Design System ===== */
:root{
  --navy-900:#070C16; --navy-850:#0B1220; --navy-800:#0F172A; --navy-700:#152036;
  --navy-600:#1E2A44; --slate-500:#334155; --slate-400:#64748B; --slate-300:#94A3B8;
  --slate-200:#CBD5E1; --slate-100:#E2E8F0; --white:#FFFFFF;
  --sky-400:#38BDF8; --sky-500:#0EA5E9; --sky-600:#0369A1;
  --bg:var(--navy-850); --bg-alt:var(--navy-800); --surface:rgba(255,255,255,.03);
  --border:rgba(148,163,184,.14); --border-strong:rgba(148,163,184,.28);
  --fg:#EAF1FB; --fg-muted:#9FB0C7; --accent:var(--sky-500); --accent-2:var(--sky-400);
  --ring:rgba(56,189,248,.5);
  --radius:16px; --radius-lg:22px; --radius-sm:10px;
  --shadow:0 20px 50px -20px rgba(2,8,23,.7);
  --maxw:1160px; --ease:cubic-bezier(.22,.61,.36,1);
  --font:'Plus Jakarta Sans',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
:target{scroll-margin-top:88px}
section[id],main [id]{scroll-margin-top:88px}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{
  margin:0;font-family:var(--font);background:var(--bg);color:var(--fg);
  line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden;
  background-image:radial-gradient(1200px 600px at 80% -10%,rgba(3,105,161,.18),transparent 60%),radial-gradient(900px 500px at -10% 10%,rgba(56,189,248,.10),transparent 55%);
}
h1,h2,h3,h4{line-height:1.15;margin:0;font-weight:700;letter-spacing:-.02em}
p{margin:0}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}
ul,ol{margin:0;padding:0;list-style:none}

.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.container--narrow{max-width:820px}
.ic{width:1.15em;height:1.15em;stroke:currentColor;stroke-width:2;fill:none;stroke-linecap:round;stroke-linejoin:round}

.skip-link{position:absolute;left:-999px;top:0;background:var(--accent);color:#001018;padding:10px 16px;border-radius:0 0 10px 0;z-index:200}
.skip-link:focus{left:0}
:focus-visible{outline:2px solid var(--ring);outline-offset:3px;border-radius:6px}

/* ===== Buttons ===== */
.btn{
  --btn-bg:transparent;display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  font-weight:600;font-size:.98rem;padding:.72rem 1.25rem;border-radius:999px;cursor:pointer;
  border:1px solid transparent;transition:transform .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
  white-space:nowrap;
}
.btn:active{transform:translateY(1px)}
.btn--lg{padding:.95rem 1.7rem;font-size:1.05rem}
.btn--block{width:100%}
.btn--primary{background:linear-gradient(135deg,var(--sky-400),var(--sky-600));color:#001018;box-shadow:0 10px 30px -10px rgba(14,165,233,.6)}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 16px 40px -12px rgba(14,165,233,.75)}
.btn--ghost{background:var(--surface);color:var(--fg);border-color:var(--border-strong)}
.btn--ghost:hover{border-color:var(--accent-2);background:rgba(56,189,248,.08);transform:translateY(-2px)}

.eyebrow{display:inline-block;font-size:.8rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--accent-2);margin-bottom:1rem}
.grad{background:linear-gradient(120deg,var(--sky-400),#7DD3FC);-webkit-background-clip:text;background-clip:text;color:transparent}

/* ===== Nav ===== */
.nav{position:sticky;top:0;z-index:100;backdrop-filter:blur(14px);background:rgba(11,18,32,.72);border-bottom:1px solid transparent;transition:border-color .3s,background .3s}
.nav.is-scrolled{border-color:var(--border);background:rgba(9,14,23,.9)}
.nav__inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:1rem}
.brand{display:inline-flex;align-items:center;gap:.6rem;font-weight:800;letter-spacing:-.02em;font-size:1.15rem}
.brand__mark{display:grid;place-items:center}
.nav__links{display:flex;gap:1.6rem}
.nav__links a{color:var(--fg-muted);font-weight:500;font-size:.95rem;position:relative;transition:color .2s}
.nav__links a::after{content:"";position:absolute;left:0;bottom:-6px;height:2px;width:0;background:var(--accent);transition:width .25s var(--ease)}
.nav__links a:hover{color:var(--fg)}
.nav__links a:hover::after{width:100%}
.nav__actions{display:flex;gap:.6rem}
.nav__toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;padding:8px;cursor:pointer}
.nav__toggle span{width:24px;height:2px;background:var(--fg);border-radius:2px;transition:transform .3s,opacity .3s}
.nav__toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav__toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav__toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-menu[hidden]{display:none}
@media (min-width:961px){.mobile-menu{display:none !important}}
.mobile-menu{display:flex;flex-direction:column;gap:.4rem;padding:1rem 24px 1.5rem;border-top:1px solid var(--border);background:rgba(9,14,23,.98)}
.mobile-menu a{padding:.7rem .25rem;color:var(--fg-muted);font-weight:500;border-radius:8px}
.mobile-menu a:hover{color:var(--fg)}
.mobile-menu .btn{margin-top:.5rem}

/* ===== Hero ===== */
.hero{position:relative;padding:clamp(3.5rem,8vw,6.5rem) 0 3rem;overflow:hidden}
.hero__glow{position:absolute;inset:auto 0 auto 50%;top:-10%;width:900px;height:900px;transform:translateX(-50%);background:radial-gradient(circle,rgba(56,189,248,.16),transparent 60%);pointer-events:none}
.hero__inner{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(2rem,5vw,4rem);align-items:center}
.hero__title{font-size:clamp(2.6rem,6vw,4.4rem);font-weight:800}
.hero__lead{margin-top:1.4rem;font-size:clamp(1.05rem,2vw,1.25rem);color:var(--fg-muted);max-width:38ch}
.hero__lead strong{color:var(--fg);font-weight:600}
.hero__cta{display:flex;flex-wrap:wrap;gap:.9rem;margin-top:2rem}
.hero__trust{display:flex;flex-wrap:wrap;gap:1.2rem;margin-top:2rem;color:var(--slate-300);font-size:.92rem}
.hero__trust li{display:flex;align-items:center;gap:.45rem}
.hero__trust .ic{color:var(--accent-2)}

.hero__card{position:relative}
.chat{background:linear-gradient(180deg,rgba(21,32,54,.9),rgba(15,23,42,.9));border:1px solid var(--border-strong);border-radius:var(--radius-lg);box-shadow:var(--shadow);overflow:hidden}
.chat__head{display:flex;align-items:center;gap:.4rem;padding:.9rem 1.1rem;border-bottom:1px solid var(--border)}
.chat__head .dot{width:10px;height:10px;border-radius:50%;background:var(--slate-500)}
.chat__title{margin-left:auto;font-size:.8rem;color:var(--slate-400)}
.chat__body{padding:1.25rem;display:flex;flex-direction:column;gap:.7rem}
.bubble{max-width:82%;padding:.7rem .95rem;border-radius:16px;font-size:.94rem;line-height:1.5}
.bubble--in{align-self:flex-start;background:var(--navy-700);border:1px solid var(--border);border-bottom-left-radius:5px}
.bubble--out{align-self:flex-end;background:linear-gradient(135deg,var(--sky-500),var(--sky-600));color:#001018;font-weight:500;border-bottom-right-radius:5px}
.chat__event{margin-top:.4rem;display:flex;align-items:center;gap:.5rem;font-size:.85rem;color:var(--accent-2);background:rgba(56,189,248,.08);border:1px solid rgba(56,189,248,.25);padding:.6rem .8rem;border-radius:12px}

.marquee{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem;margin-top:clamp(2.5rem,6vw,4rem);padding-top:2rem;border-top:1px solid var(--border)}
.stat{display:flex;flex-direction:column;gap:.35rem}
.stat__num{font-size:clamp(1.6rem,3vw,2.2rem);font-weight:800;color:var(--fg);letter-spacing:-.03em}
.stat__lbl{font-size:.85rem;color:var(--fg-muted);line-height:1.4}

/* ===== Sections ===== */
.section{padding:clamp(3.5rem,8vw,6rem) 0}
.section--alt{background:linear-gradient(180deg,transparent,rgba(7,12,22,.5))}
.section__head{max-width:720px;margin:0 auto clamp(2.2rem,5vw,3.2rem);text-align:center}
.section__head h2{font-size:clamp(1.9rem,4vw,2.8rem)}
.section__sub{margin-top:1rem;color:var(--fg-muted);font-size:1.08rem}

.grid{display:grid;gap:1.25rem}
.grid--3{grid-template-columns:repeat(3,1fr)}

.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1.8rem;transition:transform .3s var(--ease),border-color .3s,background .3s}
.card:hover{transform:translateY(-4px);border-color:var(--border-strong);background:rgba(255,255,255,.05)}
.card__icon .ic{width:24px;height:24px}
.card__icon{width:48px;height:48px;display:grid;place-items:center;border-radius:12px;background:linear-gradient(135deg,rgba(56,189,248,.18),rgba(3,105,161,.18));border:1px solid rgba(56,189,248,.25);color:var(--accent-2);margin-bottom:1.1rem}
.card h3{font-size:1.2rem;margin-bottom:.55rem}
.card p{color:var(--fg-muted);font-size:.96rem}

.card--svc{position:relative;padding-top:2.6rem}
.tag{position:absolute;top:1.3rem;right:1.3rem;font-size:.7rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;padding:.3rem .6rem;border-radius:999px;background:rgba(148,163,184,.14);color:var(--slate-300)}
.tag--wedge{background:rgba(56,189,248,.16);color:var(--accent-2)}

/* ===== Steps ===== */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:1.25rem;counter-reset:s}
.step{position:relative;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1.7rem}
.step__num{font-size:.95rem;font-weight:800;color:var(--accent-2);letter-spacing:.05em}
.step h3{font-size:1.15rem;margin:.7rem 0 .5rem}
.step p{color:var(--fg-muted);font-size:.94rem}

/* ===== Pricing ===== */
.pricing{align-items:stretch}
.price{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:2rem;position:relative;transition:transform .3s var(--ease),border-color .3s}
.price:hover{transform:translateY(-4px)}
.price--feature{border-color:rgba(56,189,248,.45);background:linear-gradient(180deg,rgba(56,189,248,.08),var(--surface));box-shadow:0 30px 60px -30px rgba(14,165,233,.5)}
.price__badge{position:absolute;top:-13px;left:50%;transform:translateX(-50%);background:linear-gradient(135deg,var(--sky-400),var(--sky-600));color:#001018;font-size:.72rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;padding:.35rem .85rem;border-radius:999px}
.price__name{font-size:1.25rem}
.price__desc{color:var(--fg-muted);font-size:.92rem;margin:.5rem 0 1.2rem;min-height:2.6em}
.price__amt{font-size:2.4rem;font-weight:800;letter-spacing:-.03em}
.price__amt span{font-size:1.1rem;font-weight:600;color:var(--fg-muted)}
.price__note{color:var(--slate-400);font-size:.85rem;margin-bottom:1.3rem}
.price__list{display:flex;flex-direction:column;gap:.65rem;margin-bottom:1.6rem;flex:1}
.price__list li{position:relative;padding-left:1.7rem;color:var(--fg-muted);font-size:.94rem}
.price__list li::before{content:"";position:absolute;left:0;top:.15em;width:1.1em;height:1.1em;border-radius:50%;background:rgba(56,189,248,.15);
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2338BDF8' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6L9 17l-5-5'/%3E%3C/svg%3E");background-size:70%;background-repeat:no-repeat;background-position:center}
.pricing__foot{text-align:center;color:var(--slate-400);font-size:.9rem;margin-top:1.8rem}

/* ===== Principle ===== */
.principle{padding:clamp(3rem,7vw,5rem) 0}
.principle__inner{max-width:900px;margin:0 auto;text-align:center;background:linear-gradient(135deg,rgba(56,189,248,.06),rgba(3,105,161,.06));border:1px solid var(--border);border-radius:var(--radius-lg);padding:clamp(2rem,5vw,3.5rem)}
.principle blockquote{margin:0}
.principle p{font-size:clamp(1.3rem,3vw,1.9rem);font-weight:600;letter-spacing:-.02em;color:var(--fg)}
.principle footer{margin-top:1.3rem;color:var(--accent-2);font-size:.95rem;font-weight:600}

/* ===== FAQ ===== */
.faq{display:flex;flex-direction:column;gap:.8rem}
.faq__item{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}
.faq__item[open]{border-color:var(--border-strong)}
.faq__item summary{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:1.25rem 1.5rem;cursor:pointer;font-weight:600;font-size:1.05rem;list-style:none}
.faq__item summary::-webkit-details-marker{display:none}
.faq__chev{flex:none;width:22px;height:22px;position:relative}
.faq__chev::before,.faq__chev::after{content:"";position:absolute;top:50%;left:50%;width:11px;height:2px;background:var(--accent-2);border-radius:2px;transition:transform .3s var(--ease)}
.faq__chev::before{transform:translate(-50%,-50%)}
.faq__chev::after{transform:translate(-50%,-50%) rotate(90deg)}
.faq__item[open] .faq__chev::after{transform:translate(-50%,-50%) rotate(0)}
.faq__a{padding:0 1.5rem 1.35rem;color:var(--fg-muted);font-size:.98rem}

/* ===== CTA ===== */
.cta{padding:clamp(4rem,9vw,7rem) 0;position:relative}
.cta__inner{max-width:720px;margin:0 auto;text-align:center;background:linear-gradient(160deg,rgba(3,105,161,.22),rgba(15,23,42,.6));border:1px solid var(--border-strong);border-radius:var(--radius-lg);padding:clamp(2.5rem,6vw,4rem);box-shadow:var(--shadow)}
.cta h2{font-size:clamp(2rem,4.5vw,3rem)}
.cta p{margin-top:1rem;color:var(--fg-muted);font-size:1.1rem}
.cta__actions{display:flex;flex-wrap:wrap;gap:.9rem;justify-content:center;margin-top:2rem}
.cta__fine{margin-top:1.6rem;font-size:.92rem;color:var(--slate-400)}
.cta__fine a{color:var(--accent-2);font-weight:600}
.cta__fine a:hover{text-decoration:underline}

/* ===== Footer ===== */
.footer{border-top:1px solid var(--border);padding:3.5rem 0 2rem;background:rgba(7,12,22,.5)}
.footer__inner{display:grid;grid-template-columns:2fr 1fr 1fr;gap:2rem}
.footer__brand p{margin-top:1rem;color:var(--fg-muted);font-size:.94rem;max-width:34ch}
.footer__col h4{font-size:.85rem;text-transform:uppercase;letter-spacing:.1em;color:var(--slate-400);margin-bottom:1rem}
.footer__col a{display:block;color:var(--fg-muted);padding:.35rem 0;font-size:.95rem;transition:color .2s}
.footer__col a:hover{color:var(--accent-2)}
.footer__bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:1rem;margin-top:3rem;padding-top:1.5rem;border-top:1px solid var(--border);color:var(--slate-400);font-size:.88rem}
.footer__tag{color:var(--slate-500)}

/* ===== Reveal animation (only when JS is active, so no-JS never hides content) ===== */
.js .reveal{opacity:0;transform:translateY(24px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.js .reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.js .reveal{opacity:1;transform:none;transition:none}}

/* ===== Responsive ===== */
@media (max-width:960px){
  .nav__links,.nav__actions{display:none}
  .nav__toggle{display:flex}
  .hero__inner{grid-template-columns:1fr}
  .hero__card{order:-1;max-width:460px}
  .grid--3,.steps,.pricing{grid-template-columns:1fr 1fr}
  .footer__inner{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
  .marquee{grid-template-columns:1fr 1fr}
  .grid--3,.steps,.pricing,.footer__inner{grid-template-columns:1fr}
  .price--feature{order:-1}
  .hero__lead{max-width:100%}
}