:root{
  --bg:#000000;
  --panel:#0A0B0D;
  --line:#23262D;          /* hairline border */
  --line-soft:#16181D;
  --txt:#F4F1EA;           /* areia as near-white text */
  --txt-strong:#FFFFFF;
  --muted:#A9ACB3;         /* pedra */
  --muted-dim:#6E727A;
  --pedra:#A9ACB3;         /* brand stone — borders/hover */
  --accent:#C9A876;        /* champagne (default, set by tweaks) */
  --accent-soft:rgba(201,168,118,0.14);
  --scale:1;
  --maxw:1280px;
  --gutter:clamp(20px,5vw,72px);
  --font-display:"Poppins",sans-serif;
  --font-text:"Lato",sans-serif;
  --font-mono:"Noto Sans Mono",monospace;
}
*{box-sizing:border-box;}
body{ -webkit-user-select:none; -moz-user-select:none; -ms-user-select:none; user-select:none; }
input, textarea, select{ -webkit-user-select:text; -moz-user-select:text; -ms-user-select:text; user-select:text; }
html{ -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility; scroll-behavior:smooth; }
body{
  margin:0;
  background:var(--bg);
  color:var(--txt);
  font-family:var(--font-text);
  font-size:17px;
  line-height:1.6;
  overflow-x:hidden;
}
a{ color:inherit; text-decoration:none; }
img{ max-width:100%; }
::selection{ background:var(--accent); color:#000; }

.arty-container{ width:100%; max-width:var(--maxw); margin:0 auto; padding-left:var(--gutter); padding-right:var(--gutter); }

.arty-display{ font-family:var(--font-display); font-weight:600; letter-spacing:-0.02em; line-height:1.02; }

/* mono labels */
.arty-mono{ font-family:var(--font-mono); font-size:0.72rem; letter-spacing:0.22em; text-transform:uppercase; color:var(--muted); font-weight:400; }
.arty-accent-dot{ width:6px; height:6px; background:var(--accent); border-radius:50%; display:inline-block; flex:0 0 auto; }

/* buttons */
.arty-btn{
  display:inline-flex; align-items:center; gap:0.6em;
  font-family:var(--font-mono); font-size:0.74rem; letter-spacing:0.16em; text-transform:uppercase;
  padding:0.95em 1.5em; border-radius:2px; cursor:pointer;
  transition:background .35s ease, color .35s ease, border-color .35s ease, transform .35s cubic-bezier(.2,.7,.3,1), opacity .35s ease;
  border:1px solid transparent; white-space:nowrap; box-sizing:border-box;
}
/* botões em contexto de coluna estreita podem quebrar em vez de estourar */
.arty-hero-actions .arty-btn, .arty-cta-strip .arty-btn, .arty-services-cta .arty-btn, .arty-aside .arty-btn{ white-space:normal; max-width:100%; text-align:center; }
.arty-btn i{ transition:transform .35s cubic-bezier(.2,.7,.3,1); }
.arty-btn:hover i{ transform:translate(2px,-2px); }
.arty-btn-solid{ background:var(--txt-strong); color:#000; }
.arty-btn-solid:hover{ background:var(--accent); }
.arty-btn-ghost{ background:transparent; color:var(--txt); border-color:var(--line); }
.arty-btn-ghost:hover{ border-color:var(--txt); }

/* floating whatsapp button */
.arty-wa-fab{
  position:fixed; right:clamp(16px,4vw,34px); bottom:clamp(16px,4vw,34px);
  width:58px; height:58px; border-radius:50%;
  background:#25D366; color:#fff;
  display:flex; align-items:center; justify-content:center;
  box-shadow:0 10px 30px rgba(0,0,0,.4), 0 0 0 1px rgba(255,255,255,0.06) inset;
  z-index:80; transition:transform .35s cubic-bezier(.2,.7,.3,1), background .3s ease;
}
.arty-wa-fab::after{
  content:""; position:absolute; inset:0; border-radius:50%;
  border:1.5px solid #25D366; opacity:.6;
  animation:artyWaPulse 2.6s ease-out infinite;
}
.arty-wa-fab:hover{ background:#1EBE57; transform:scale(1.07); }
.arty-wa-fab svg{ width:32px; height:32px; display:block; }
@keyframes artyWaPulse{ 0%{ transform:scale(1); opacity:.55; } 100%{ transform:scale(1.7); opacity:0; } }
@media (prefers-reduced-motion: reduce){ .arty-wa-fab::after{ animation:none; } }

/* ---------- header ---------- */
.arty-header{ position:fixed; top:0; left:0; right:0; z-index:50; transition:background .4s ease, border-color .4s ease, backdrop-filter .4s ease; border-bottom:1px solid transparent; }
.arty-header.is-scrolled{ background:color-mix(in srgb, var(--bg) 72%, transparent); backdrop-filter:blur(14px) saturate(140%); border-bottom-color:var(--line); }
.arty-header-inner{ display:grid; grid-template-columns:1fr auto 1fr; align-items:center; height:78px; }
.arty-logo-link{ display:flex; align-items:center; }
.arty-nav{ display:flex; gap:2.4rem; justify-self:center; }
.arty-nav a{ font-family:var(--font-mono); font-size:0.74rem; letter-spacing:0.16em; text-transform:uppercase; color:var(--muted); position:relative; padding:4px 0; transition:color .3s ease; }
.arty-nav a::after{ content:""; position:absolute; left:0; bottom:-2px; width:0; height:1px; background:var(--accent); transition:width .35s cubic-bezier(.2,.7,.3,1); }
.arty-nav a:hover{ color:var(--txt-strong); }
.arty-nav a:hover::after{ width:100%; }
.arty-header-right{ display:flex; align-items:center; gap:1.6rem; justify-self:end; }
.arty-header-cta{ padding:0.7em 1.2em; }

/* hamburger + mobile drawer */
.arty-burger{ display:none; flex-direction:column; justify-content:center; gap:5px; width:42px; height:42px; padding:0 9px; background:none; border:1px solid var(--line); border-radius:3px; cursor:pointer; }
.arty-burger span{ display:block; height:1.5px; width:100%; background:var(--txt-strong); transition:transform .3s ease, opacity .25s ease; }
.arty-burger.is-open span:nth-child(1){ transform:translateY(6.5px) rotate(45deg); }
.arty-burger.is-open span:nth-child(2){ opacity:0; }
.arty-burger.is-open span:nth-child(3){ transform:translateY(-6.5px) rotate(-45deg); }
.arty-mobile-overlay{ position:fixed; inset:0; background:rgba(0,0,0,0.55); opacity:0; visibility:hidden; transition:opacity .35s ease, visibility .35s ease; z-index:40; }
.arty-mobile-overlay.is-open{ opacity:1; visibility:visible; }
.arty-mobile-menu{ position:fixed; top:0; right:0; height:100%; width:min(82vw,340px); background:var(--bg); border-left:1px solid var(--line); transform:translateX(100%); transition:transform .4s cubic-bezier(.2,.7,.3,1); z-index:45; display:flex; flex-direction:column; padding:96px clamp(1.6rem,5vw,2.2rem) 2rem; overflow-y:auto; }
.arty-mobile-menu.is-open{ transform:translateX(0); }
.arty-mobile-nav{ display:flex; flex-direction:column; }
.arty-mobile-nav > a{ font-family:var(--font-display); font-weight:500; font-size:1.5rem; color:var(--txt); padding:0.85rem 0; border-bottom:1px solid var(--line); letter-spacing:-0.01em; transition:color .25s ease; }
.arty-mobile-nav > a:hover, .arty-mobile-nav > a.is-active{ color:var(--accent); }
.arty-mobile-sub{ display:flex; flex-direction:column; gap:0.2rem; padding:0.7rem 0 0.9rem 0.9rem; border-bottom:1px solid var(--line); }
.arty-mobile-sub a{ font-size:0.98rem; color:var(--muted); padding:0.35rem 0; transition:color .25s ease; }
.arty-mobile-sub a:hover{ color:var(--txt-strong); }
.arty-mobile-cta{ margin-top:auto; justify-content:center; }
@media (min-width:721px){
  .arty-mobile-menu, .arty-mobile-overlay{ display:none; }
}
/* brilho que percorre o botão da esquerda para a direita, em loop (reutilizável) */
.arty-sheen{ position:relative; overflow:hidden; }
.arty-sheen::after{
  content:""; position:absolute; top:0; left:0; width:55%; height:100%;
  background:linear-gradient(100deg, transparent 0%, color-mix(in srgb, var(--accent) 55%, transparent) 50%, transparent 100%);
  transform:translateX(-160%) skewX(-18deg); pointer-events:none;
}
@media (prefers-reduced-motion: no-preference){
  .arty-sheen::after{ animation:artySheen 3.4s cubic-bezier(.5,.1,.4,1) infinite; }
}
@keyframes artySheen{
  0%   { transform:translateX(-160%) skewX(-18deg); }
  55%  { transform:translateX(320%) skewX(-18deg); }
  100% { transform:translateX(320%) skewX(-18deg); }
}

/* ---------- hero shared ---------- */
.arty-hero{ position:relative; min-height:100vh; display:flex; align-items:center; padding-top:140px; padding-bottom:90px; overflow:hidden; }
.arty-hero-inner{ position:relative; z-index:2; width:100%; }
.arty-hero-kicker{ display:inline-flex; align-items:flex-start; margin-bottom:2.2rem; }
.arty-hero-kicker .arty-accent-dot{ margin-top:0.42em; }
.arty-hero-title{ font-size:calc(clamp(2.6rem,7.4vw,6.4rem) * var(--scale)); margin:0; }
.arty-hero-title .arty-line{ display:block; }
.arty-hero-sub{ color:var(--muted); font-size:calc(1.12rem * var(--scale)); max-width:46ch; line-height:1.65; }
.arty-hero-actions{ display:flex; gap:1rem; flex-wrap:wrap; margin-top:2.4rem; }

/* hero A — editorial */
.arty-hero-a .arty-hero-title{ margin-bottom:3.4rem; }
.arty-hero-a .arty-hero-title .arty-line:last-child{ color:var(--accent); }
.arty-hero-foot{ display:flex; justify-content:space-between; align-items:flex-end; gap:3rem; flex-wrap:wrap; border-top:1px solid var(--line); padding-top:2.4rem; }
.arty-hero-foot .arty-hero-actions{ margin-top:0; }

/* hero B — centered */
.arty-hero-b{ text-align:center; display:flex; flex-direction:column; align-items:center; position:relative; }
.arty-hero-title-center .arty-line:nth-child(2){ color:var(--accent); }
.arty-hero-sub-center{ margin-left:auto; margin-right:auto; margin-top:2rem; }
.arty-hero-actions-center{ justify-content:center; }

/* hero C — split index */
.arty-hero-c{ display:grid; grid-template-columns:1.25fr 0.85fr; gap:clamp(2rem,6vw,6rem); align-items:center; }
.arty-hero-c .arty-hero-title{ margin-bottom:2rem; }
.arty-hero-c .arty-hero-title .arty-line:last-child{ color:var(--accent); }
.arty-hero-c-right{ border-left:1px solid var(--line); padding-left:clamp(1.5rem,3vw,2.6rem); }
.arty-hero-c-label{ display:block; margin-bottom:1.4rem; }
.arty-hero-index{ list-style:none; margin:0; padding:0; }
.arty-hero-index li{ display:flex; align-items:center; gap:1.1rem; padding:1.15rem 0; border-top:1px solid var(--line); color:var(--txt); transition:padding-left .35s cubic-bezier(.2,.7,.3,1), color .3s ease; cursor:default; }
.arty-hero-index li:hover{ padding-left:0.6rem; color:var(--txt-strong); }
.arty-hero-index li:last-child{ border-bottom:1px solid var(--line); }
.arty-hero-index-n{ color:var(--accent); font-size:0.7rem; }
.arty-hero-index-name{ font-family:var(--font-display); font-weight:500; font-size:1.12rem; letter-spacing:-0.01em; }
.arty-hero-index-arrow{ margin-left:auto; color:var(--muted-dim); }

/* ---------- generic section ---------- */
.arty-section{ padding-top:clamp(90px,11vw,160px); padding-bottom:clamp(90px,11vw,160px); position:relative; }
.arty-section-head{ display:grid; grid-template-columns:1fr 0.8fr; gap:2.5rem; align-items:end; margin-bottom:clamp(3rem,6vw,5rem); }
.arty-section-label{ display:inline-flex; margin-bottom:1.4rem; }

/* ---------- services ---------- */
.arty-services{ background:var(--bg); }
.arty-services-grid{ display:grid; grid-template-columns:1fr 1fr; border-top:1px solid var(--line); border-left:1px solid var(--line); }
.arty-service{ padding:clamp(2rem,3.5vw,3.4rem); border-right:1px solid var(--line); border-bottom:1px solid var(--line); position:relative; transition:background .4s ease; overflow:hidden; }
.arty-service::before{ content:""; position:absolute; inset:0; background:var(--accent-soft); opacity:0; transition:opacity .45s ease; }
.arty-service:hover{ background:var(--panel); }
.arty-service:hover::before{ opacity:1; }
.arty-service > *{ position:relative; z-index:1; }
.arty-service-top{ display:flex; align-items:center; justify-content:space-between; margin-bottom:2.4rem; }
.arty-service-icon{ color:var(--accent); display:inline-flex; transition:transform .45s cubic-bezier(.2,.7,.3,1); }
.arty-service:hover .arty-service-icon{ transform:translateY(-3px); }
.arty-service-index{ font-size:0.7rem; color:var(--muted-dim); }
.arty-service-title{ font-family:var(--font-display); font-weight:600; font-size:calc(1.5rem * var(--scale)); letter-spacing:-0.01em; margin:0 0 0.9rem; color:var(--txt-strong); }
.arty-service-desc{ color:var(--muted); font-size:1rem; line-height:1.6; margin:0; max-width:38ch; }

/* ---------- lab ---------- */
@keyframes artyPulse{ 0%{ transform:scale(.6); opacity:.7; } 100%{ transform:scale(1.8); opacity:0; } }

/* ---------- contact ---------- */
.arty-contact{ background:var(--bg); border-top:1px solid var(--line); }
.arty-contact-grid{ display:grid; grid-template-columns:0.9fr 1.1fr; gap:clamp(2.5rem,6vw,6rem); align-items:start; }
.arty-contact-left .arty-section-label{ display:inline-flex; margin-bottom:1.6rem; }
.arty-contact-title{ font-size:calc(clamp(2.4rem,5vw,4rem) * var(--scale)); margin:0 0 1.4rem; }
.arty-contact-desc{ color:var(--muted); font-size:calc(1.08rem * var(--scale)); line-height:1.65; max-width:40ch; margin:0; }
.arty-whats{ border:1px solid var(--line); border-radius:3px; padding:1.8rem; display:flex; flex-direction:column; align-items:flex-start; gap:1rem; background:var(--panel); }
.arty-whats-kicker{ color:var(--muted); align-self:stretch; white-space:nowrap; }
.arty-whats-note{ align-self:stretch; white-space:nowrap; }
.arty-whats-lead{ color:var(--txt); font-size:calc(1.02rem * var(--scale)); line-height:1.6; margin:0; max-width:42ch; align-self:stretch; }
.arty-contact-form-wrap .arty-whats{ max-width:34rem; }
.arty-contact-email-block{ display:flex; flex-direction:column; gap:0.5rem; margin-top:2.2rem; }
.arty-contact-email-block .arty-contact-email{ margin-top:0; }
.arty-contact-email-block .arty-contact-or{ margin-bottom:0; }
.arty-whats-btn{ display:inline-flex; align-items:center; gap:0.7rem; white-space:normal; max-width:100%; box-sizing:border-box; text-align:center; background:var(--txt-strong); color:#000; border:none; cursor:pointer; font-family:var(--font-mono); font-size:0.8rem; letter-spacing:0.14em; text-transform:uppercase; padding:1em 1.5em; border-radius:2px; transition:background .35s ease, transform .35s cubic-bezier(.2,.7,.3,1); }
.arty-whats-btn:hover{ background:var(--accent); }
.arty-whats-btn .arty-whats-arrow{ transition:transform .35s cubic-bezier(.2,.7,.3,1); }
.arty-whats-btn:hover .arty-whats-arrow{ transform:translate(2px,-2px); }
.arty-whats-note{ color:var(--muted-dim); font-size:0.92rem; }
.arty-contact-email{ display:inline-flex; align-items:center; gap:0.6rem; margin-top:2rem; color:var(--muted); font-size:1rem; transition:color .3s ease; }
.arty-contact-email i{ color:var(--accent); }
.arty-contact-email:hover{ color:var(--txt-strong); }

.arty-contact-or{ display:block; color:var(--muted-dim); margin-bottom:1.6rem; }

/* ---------- footer ---------- */
.arty-footer{ background:var(--bg); border-top:1px solid var(--line); padding-top:clamp(90px,10vw,150px); padding-bottom:48px; }
.arty-footer-brand{ display:flex; flex-direction:column; gap:1.2rem; align-items:flex-start; }
.arty-footer-city{ font-size:0.7rem; }
.arty-footer-col{ display:flex; flex-direction:column; gap:0.95rem; }
.arty-footer-col-label{ color:var(--muted-dim); margin-bottom:0.5rem; font-size:0.68rem; }
.arty-footer-col a{ color:var(--muted); font-size:0.98rem; transition:color .3s ease; width:fit-content; }
.arty-footer-col a:hover{ color:var(--txt-strong); }
.arty-footer-social{ display:inline-flex; align-items:center; gap:0.45rem; }
.arty-footer-social i{ color:var(--accent); transition:transform .35s cubic-bezier(.2,.7,.3,1); }
.arty-footer-social:hover i{ transform:translate(2px,-2px); }
.arty-footer-base{ display:flex; justify-content:space-between; align-items:center; padding-top:2.4rem; border-top:1px solid var(--line); gap:1rem; flex-wrap:wrap; }
.arty-footer-base .arty-mono{ font-size:0.68rem; color:var(--muted-dim); }

/* ---------- entrance animations ---------- */
@media (prefers-reduced-motion: no-preference){
  /* Entrance only runs once JS confirms the page is visible (class on <html>).
     Default/resting state is fully visible, so backgrounded tabs, print and
     reduced-motion always show content. */
  .arty-anim-ready .arty-hero-kicker,
  .arty-anim-ready .arty-hero-title .arty-line,
  .arty-anim-ready .arty-hero-sub,
  .arty-anim-ready .arty-hero-actions,
  .arty-anim-ready .arty-hero-c-right,
  .arty-anim-ready .arty-hero-b-mark{
    opacity:0; animation:artyRise .9s cubic-bezier(.2,.7,.3,1) forwards;
  }
  .arty-anim-ready .arty-hero-kicker{ animation-delay:.05s; }
  .arty-anim-ready .arty-hero-title .arty-line:nth-child(1){ animation-delay:.12s; }
  .arty-anim-ready .arty-hero-title .arty-line:nth-child(2){ animation-delay:.20s; }
  .arty-anim-ready .arty-hero-title .arty-line:nth-child(3){ animation-delay:.28s; }
  .arty-anim-ready .arty-hero-sub{ animation-delay:.38s; }
  .arty-anim-ready .arty-hero-actions{ animation-delay:.46s; }
  .arty-anim-ready .arty-hero-c-right{ animation-delay:.40s; }
  .arty-anim-ready .arty-hero-b-mark{ animation-delay:0s; animation-duration:1.4s; }
}
@keyframes artyRise{ from{ opacity:0; transform:translateY(26px); } to{ opacity:1; transform:translateY(0); } }

/* ---------- responsive ---------- */
@media (max-width:980px){
  .arty-hero-c{ grid-template-columns:1fr; gap:3rem; }
  .arty-hero-c-right{ border-left:none; border-top:1px solid var(--line); padding-left:0; padding-top:2rem; }
  .arty-section-head{ grid-template-columns:1fr; gap:1.4rem; }
  .arty-contact-grid{ grid-template-columns:1fr; gap:3rem; }
  .arty-footer-brand{ grid-column:1 / -1; }
}
@media (max-width:720px){
  body{ font-size:16px; }
  .arty-nav{ display:none; }
  .arty-header-cta{ display:none; }
  .arty-burger{ display:flex; }
  .arty-header-inner{ display:flex; align-items:center; justify-content:space-between; }
  .arty-header-right{ justify-self:auto; margin-left:auto; }
  .arty-services-grid{ grid-template-columns:1fr; }
  .arty-hero-foot{ flex-direction:column; align-items:flex-start; }
}
@media (max-width:480px){
  .arty-footer-base{ flex-direction:column; align-items:flex-start; }
  .arty-whats-btn{ width:100%; max-width:100%; box-sizing:border-box; justify-content:center; white-space:normal; text-align:center; letter-spacing:0.1em; padding-left:1.1em; padding-right:1.1em; }
  .arty-hero-actions{ width:100%; }
  .arty-hero-actions .arty-btn{ flex:1 1 100%; max-width:100%; box-sizing:border-box; justify-content:center; white-space:normal; letter-spacing:0.1em; padding-left:1.1em; padding-right:1.1em; }
  .arty-cta-strip .arty-btn, .arty-services-cta .arty-btn, .arty-aside .arty-btn{ max-width:100%; box-sizing:border-box; justify-content:center; white-space:normal; letter-spacing:0.1em; padding-left:1.1em; padding-right:1.1em; }
}

/* ===================== NAV DROPDOWN ===================== */
.arty-nav-item{ position:relative; display:inline-flex; }
.arty-nav-item > a{ display:inline-flex; align-items:center; gap:0.45em; }
.arty-nav-caret{ width:5px; height:5px; border-right:1px solid currentColor; border-bottom:1px solid currentColor; transform:rotate(45deg); transition:transform .3s ease; opacity:.55; margin-bottom:3px; }
.arty-nav-item:hover .arty-nav-caret{ transform:rotate(-135deg); margin-bottom:0; }
.arty-dropdown{ position:absolute; top:100%; left:50%; transform:translate(-50%,8px); min-width:330px; background:color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter:blur(18px) saturate(140%); border:1px solid var(--line); border-radius:5px; padding:0.6rem; opacity:0; visibility:hidden; pointer-events:none; transition:opacity .28s ease, transform .28s cubic-bezier(.2,.7,.3,1); z-index:60; }
.arty-nav-item:hover .arty-dropdown{ opacity:1; visibility:visible; pointer-events:auto; transform:translate(-50%,0); }
.arty-dropdown::before{ content:""; position:absolute; left:0; right:0; top:-12px; height:12px; }
.arty-dd-link{ display:flex; align-items:flex-start; gap:0.85rem; padding:0.85rem 0.9rem; border-radius:3px; transition:background .25s ease; }
.arty-dd-link:hover{ background:var(--panel); }
.arty-dd-tt{ display:block; font-family:var(--font-display); font-weight:500; font-size:0.98rem; color:var(--txt-strong); letter-spacing:-0.01em; text-transform:none; }
.arty-dd-foot{ border-top:1px solid var(--line); margin-top:0.35rem; padding:0.95rem 0.9rem 0.45rem; }
.arty-dd-foot a{ font-family:var(--font-mono); font-size:0.7rem; letter-spacing:0.16em; text-transform:uppercase; color:var(--muted); display:inline-flex; align-items:center; gap:0.5em; transition:color .25s ease; }
.arty-dd-foot a:hover{ color:var(--txt-strong); }
.arty-dd-foot a i{ transition:transform .3s cubic-bezier(.2,.7,.3,1); }
.arty-dd-foot a:hover i{ transform:translate(2px,-2px); }

/* ===================== INNER PAGES ===================== */
.arty-page{ padding-top:78px; }
.arty-page-hero{ padding:clamp(70px,9vw,128px) 0 clamp(48px,6vw,78px); border-bottom:1px solid var(--line); position:relative; }
.arty-breadcrumb{ display:flex; align-items:center; gap:0.6rem; margin-bottom:2.2rem; flex-wrap:wrap; }
.arty-breadcrumb a{ font-family:var(--font-mono); font-size:0.72rem; letter-spacing:0.16em; text-transform:uppercase; color:var(--muted); transition:color .25s ease; }
.arty-breadcrumb a:hover{ color:var(--txt-strong); }
.arty-breadcrumb i{ color:var(--muted-dim); display:inline-flex; }
.arty-breadcrumb .cur{ font-family:var(--font-mono); font-size:0.72rem; letter-spacing:0.16em; text-transform:uppercase; color:var(--accent); }
.arty-page-index{ font-family:var(--font-mono); font-size:0.8rem; color:var(--accent); margin-bottom:1.3rem; display:block; letter-spacing:0.14em; }
.arty-page-title{ font-family:var(--font-display); font-weight:600; letter-spacing:-0.02em; line-height:1.03; font-size:calc(clamp(2.5rem,6vw,5rem)*var(--scale)); margin:0; max-width:20ch; }
.arty-page-lead{ color:var(--muted); font-size:calc(1.18rem*var(--scale)); line-height:1.62; max-width:54ch; margin:1.9rem 0 0; }

.arty-detail-grid{ display:grid; grid-template-columns:1fr 0.78fr; gap:clamp(2.5rem,6vw,6rem); align-items:start; }
.arty-detail-block + .arty-detail-block{ margin-top:clamp(2.5rem,5vw,4rem); }
.arty-detail-kicker{ display:inline-flex; margin-bottom:1.4rem; }
.arty-detail-h{ font-family:var(--font-display); font-weight:600; font-size:calc(1.7rem*var(--scale)); color:var(--txt-strong); margin:0 0 1.3rem; letter-spacing:-0.01em; }
.arty-detail-p{ color:var(--muted); font-size:1.08rem; line-height:1.72; margin:0 0 1.1rem; max-width:62ch; }
.arty-feature-list{ list-style:none; margin:0; padding:0; }
.arty-feature-list li{ display:flex; gap:1.1rem; padding:1.4rem 0; border-top:1px solid var(--line); }
.arty-feature-list li:last-child{ border-bottom:1px solid var(--line); }
.arty-feature-ic{ color:var(--accent); flex:0 0 auto; margin-top:2px; }
.arty-feature-tt{ font-family:var(--font-display); font-weight:500; color:var(--txt-strong); font-size:1.08rem; margin:0 0 0.35rem; }
.arty-feature-d{ color:var(--muted); font-size:0.97rem; margin:0; line-height:1.58; }
.arty-aside{ border:1px solid var(--line); border-radius:5px; padding:2rem; background:var(--panel); position:sticky; top:100px; }
.arty-aside-label{ display:block; margin-bottom:1.5rem; color:var(--muted); }
.arty-aside ul{ list-style:none; margin:0 0 1.9rem; padding:0; display:flex; flex-direction:column; gap:1rem; }
.arty-aside li{ display:flex; align-items:flex-start; gap:0.7rem; color:var(--txt); font-size:0.98rem; line-height:1.45; }
.arty-aside li i{ color:var(--accent); flex:0 0 auto; margin-top:2px; }
.arty-aside .arty-btn{ width:100%; justify-content:center; }

.arty-steps{ display:grid; grid-template-columns:repeat(auto-fit, minmax(160px,1fr)); gap:1px; background:var(--line); border:1px solid var(--line); margin-top:1.2rem; }
.arty-step{ background:var(--bg); padding:1.9rem 1.6rem; min-width:0; }
.arty-step-n{ font-family:var(--font-mono); font-size:0.74rem; color:var(--accent); letter-spacing:0.12em; }
.arty-step-t{ font-family:var(--font-display); font-weight:500; color:var(--txt-strong); margin:0.9rem 0 0.45rem; font-size:1.05rem; overflow-wrap:break-word; }
.arty-step-d{ color:var(--muted); font-size:0.92rem; margin:0; line-height:1.5; overflow-wrap:break-word; }

.arty-related{ display:grid; grid-template-columns:repeat(3,1fr); gap:1.2rem; }
.arty-related a{ border:1px solid var(--line); border-radius:4px; padding:1.7rem; transition:background .3s ease, border-color .3s ease; display:flex; flex-direction:column; gap:0.7rem; }
.arty-related a:hover{ background:var(--panel); border-color:var(--pedra); }
.arty-related .arty-rl-ic{ color:var(--accent); }
.arty-related .arty-rl-t{ font-family:var(--font-display); font-weight:500; color:var(--txt-strong); font-size:1.1rem; }
.arty-related .arty-rl-d{ color:var(--muted); font-size:0.92rem; line-height:1.5; }

.arty-about-story .arty-detail-p:first-child{ font-size:1.24rem; line-height:1.66; color:var(--txt); max-width:64ch; }

.arty-vm-grid{ display:grid; grid-template-columns:1fr 1fr; gap:clamp(2rem,5vw,4.5rem); background:none; border:none; padding:0; margin-bottom:clamp(3rem,6vw,4.5rem); }
.arty-vm{ background:none; padding:1.5rem 0 0; border-top:2px solid var(--accent); }
.arty-vm h3{ font-family:var(--font-mono); font-size:0.74rem; letter-spacing:0.18em; text-transform:uppercase; color:var(--accent); margin:0 0 1rem; }
.arty-vm p{ font-family:var(--font-display); font-weight:500; font-size:calc(1.34rem*var(--scale)); line-height:1.42; color:var(--txt-strong); margin:0; letter-spacing:-0.01em; }
.arty-values{ display:grid; grid-template-columns:1fr; gap:0; }
.arty-value{ display:grid; grid-template-columns:0.85fr 1.3fr; gap:clamp(1.2rem,4vw,3.4rem); align-items:baseline; padding:clamp(1.3rem,2.6vw,1.9rem) 0; border-top:1px solid var(--line-soft); }
.arty-value:first-child{ border-top:1px solid var(--line); }
.arty-value-head{ display:flex; align-items:baseline; gap:0.85rem; }
.arty-value-n{ font-family:var(--font-mono); font-size:0.72rem; color:var(--accent); letter-spacing:0.12em; flex:0 0 auto; }
.arty-value-t{ font-family:var(--font-display); font-weight:600; color:var(--txt-strong); font-size:calc(1.22rem*var(--scale)); margin:0; letter-spacing:-0.01em; }
.arty-value-d{ color:var(--muted); font-size:1.02rem; line-height:1.68; margin:0; }

.arty-cta-strip{ border-top:1px solid var(--line); background:var(--panel); }
.arty-cta-strip .arty-container{ display:flex; align-items:center; justify-content:space-between; gap:2rem; padding-top:clamp(3rem,6vw,5rem); padding-bottom:clamp(3rem,6vw,5rem); flex-wrap:wrap; }
.arty-cta-strip h2{ font-family:var(--font-display); font-weight:600; font-size:calc(clamp(1.9rem,4vw,3.2rem)*var(--scale)); margin:0; letter-spacing:-0.02em; max-width:18ch; }

@media (max-width:980px){
  .arty-detail-grid{ grid-template-columns:1fr; }
  .arty-aside{ position:static; }
  .arty-related{ grid-template-columns:1fr 1fr; }
}
@media (max-width:720px){
  .arty-steps{ grid-template-columns:1fr; }
  .arty-vm-grid{ grid-template-columns:1fr; gap:2rem; }
  .arty-values{ grid-template-columns:1fr; }
  .arty-value{ grid-template-columns:1fr; gap:0.55rem; }
  .arty-related{ grid-template-columns:1fr; }
}