/* =========================================================
   MARTT CO. — Sistema visual proprietário
   Conceito: Estúdio de Tração Direta
   Segmento: Marketing direto + agência de publicidade
   Arquitetura: HTML estático, mobile-first, sem frameworks
   ========================================================= */

:root{
  --ink-950:#101115;
  --ink-900:#171921;
  --ink-800:#232733;
  --steel:#53606e;
  --muted:#737b86;
  --paper:#f6f1e7;
  --paper-2:#ebe1d2;
  --white:#fffdf8;
  --red:#e74e3c;
  --red-2:#ff826f;
  --amber:#d9a64f;
  --blue:#304e89;
  --blue-2:#6f8ed8;
  --line:rgba(16,17,21,.13);
  --line-dark:rgba(255,253,248,.16);
  --container:1120px;
  --radius-xl:34px;
  --radius-lg:22px;
  --radius-md:16px;
  --shadow-soft:0 28px 80px rgba(16,17,21,.14);
  --shadow-card:0 16px 42px rgba(16,17,21,.10);
  --font-main:"Segoe UI",Roboto,Arial,sans-serif;
  --font-display:Georgia,"Times New Roman",serif;
  --h1:clamp(2.65rem,6vw,4rem);
  --h2:clamp(1.9rem,4vw,2.75rem);
  --h3:clamp(1.18rem,2.2vw,1.55rem);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-main);
  color:var(--ink-900);
  line-height:1.66;
  background:
    radial-gradient(circle at 9% 0%, rgba(231,78,60,.16), transparent 30rem),
    radial-gradient(circle at 92% 5%, rgba(48,78,137,.13), transparent 34rem),
    linear-gradient(180deg,var(--white),var(--paper));
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit}
::selection{background:var(--red);color:var(--white)}
.skip-link{position:absolute;left:-999px;top:auto;width:1px;height:1px;overflow:hidden}
.skip-link:focus{left:1rem;top:1rem;width:auto;height:auto;background:var(--ink-950);color:var(--white);padding:.8rem 1rem;border-radius:999px;z-index:999}
.container{width:min(var(--container), calc(100% - 2rem));margin-inline:auto}
h1,h2,h3,p{margin-top:0}
h1{font-size:var(--h1);line-height:1.03;letter-spacing:-.055em;margin-bottom:1.05rem}
h2{font-size:var(--h2);line-height:1.08;letter-spacing:-.04em;margin-bottom:1rem}
h3{font-size:var(--h3);line-height:1.22;letter-spacing:-.02em;margin-bottom:.7rem}
.lead{font-size:clamp(1.05rem,2vw,1.22rem);color:var(--steel);max-width:760px}
.muted{color:var(--muted)}
.section{padding:6.2rem 0}.section-tight{padding:4.4rem 0}
.grid{display:grid;gap:1rem}.two,.three,.four{grid-template-columns:1fr}
.eyebrow{display:inline-flex;align-items:center;gap:.65rem;color:var(--blue);font-weight:900;font-size:.76rem;letter-spacing:.16em;text-transform:uppercase;margin-bottom:1rem}
.eyebrow::before{content:"";width:38px;height:2px;background:linear-gradient(90deg,var(--red),var(--blue))}
.dark{color:var(--white);background:radial-gradient(circle at 18% 20%,rgba(231,78,60,.16),transparent 28rem),linear-gradient(135deg,var(--ink-950),var(--ink-800))}
.dark .lead,.dark .muted{color:rgba(255,253,248,.72)}.dark .eyebrow{color:var(--red-2)}.dark .eyebrow::before{background:var(--amber)}
.site-header{position:sticky;top:0;z-index:50;background:rgba(246,241,231,.88);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}
.nav{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:1rem}
.brand{display:flex;align-items:center;gap:.8rem;font-weight:950;letter-spacing:-.04em}.brand small{display:block;color:var(--muted);font-size:.68rem;letter-spacing:.12em;text-transform:uppercase;font-weight:900}.brand-mark{width:46px;height:46px;border-radius:16px;background:linear-gradient(135deg,var(--red),var(--ink-950));color:var(--white);display:grid;place-items:center;position:relative;overflow:hidden;box-shadow:inset 0 0 0 1px rgba(255,255,255,.16)}.brand-mark::after{content:"";position:absolute;inset:auto -16px 9px -10px;height:13px;background:rgba(217,166,79,.85);transform:rotate(-20deg)}.brand-mark span{position:relative;z-index:1}
.menu{display:none;align-items:center;gap:1rem;font-size:.92rem;font-weight:850}.menu a{position:relative;color:var(--ink-800)}.menu a::after{content:"";position:absolute;left:0;bottom:-.35rem;width:0;height:2px;background:var(--red);transition:.25s}.menu a:hover::after,.menu a:focus-visible::after{width:100%}.header-cta{display:none}.mobile-actions{display:flex}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;border:1px solid transparent;border-radius:999px;padding:.88rem 1.18rem;font-weight:900;cursor:pointer;transition:.24s}.btn:hover{transform:translateY(-2px)}.btn:focus-visible,input:focus,textarea:focus,select:focus{outline:3px solid rgba(231,78,60,.25);outline-offset:3px}.btn-primary{background:var(--ink-950);color:var(--white);box-shadow:var(--shadow-card)}.btn-primary:hover{background:var(--blue)}.btn-secondary{border-color:var(--line);background:rgba(255,255,255,.55)}.btn-light{background:var(--white);color:var(--ink-950)}
.pill{display:inline-flex;border:1px solid var(--line);border-radius:999px;padding:.42rem .72rem;font-size:.78rem;font-weight:900;color:var(--blue);background:rgba(255,255,255,.55)}
.hero{padding:4.2rem 0 5rem;overflow:hidden}.hero-grid{display:grid;gap:2rem;align-items:center}.hero-card{position:relative;overflow:hidden;border:1px solid var(--line);border-radius:var(--radius-xl);background:linear-gradient(180deg,rgba(255,255,255,.78),rgba(255,255,255,.42));box-shadow:var(--shadow-soft);padding:clamp(1.25rem,4vw,2.45rem)}.hero-card::before{content:"";position:absolute;inset:1rem;border:1px solid rgba(231,78,60,.18);border-radius:26px}.hero-card::after{content:"MARTT";position:absolute;right:-.3rem;bottom:-1.4rem;font-family:var(--font-display);font-size:6rem;color:rgba(48,78,137,.06);letter-spacing:-.08em}.hero-copy{position:relative;z-index:1}.hero-actions{display:flex;gap:.8rem;flex-wrap:wrap;margin:1.6rem 0}.trust-row{display:flex;gap:.55rem;flex-wrap:wrap}
.studio-board{min-height:430px;border-radius:var(--radius-xl);background:radial-gradient(circle at 70% 18%,rgba(231,78,60,.24),transparent 18rem),linear-gradient(145deg,var(--ink-950),var(--ink-800));color:var(--white);padding:1rem;box-shadow:var(--shadow-soft);position:relative;overflow:hidden}.studio-board::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.052) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.052) 1px,transparent 1px);background-size:42px 42px;mask-image:linear-gradient(180deg,#000,transparent 92%)}.board-inner{position:relative;z-index:1;border:1px solid var(--line-dark);border-radius:26px;height:100%;padding:1rem;display:grid;gap:.9rem}.board-step{border:1px solid var(--line-dark);border-radius:20px;background:rgba(255,255,255,.055);padding:1rem;display:grid;grid-template-columns:auto 1fr;gap:.8rem}.marker{width:24px;height:24px;border-radius:50% 50% 50% 6px;background:var(--red-2);margin-top:.15rem;box-shadow:0 0 0 8px rgba(255,130,111,.12)}.board-step span{color:rgba(255,253,248,.72);font-size:.92rem}.board-number{font-family:var(--font-display);font-size:3.2rem;color:var(--amber);line-height:1}
.panel,.content-block,.card,.quote,details{border:1px solid var(--line);border-radius:var(--radius-lg);background:rgba(255,255,255,.62);box-shadow:var(--shadow-card);padding:1.35rem}.panel-dark{border-color:var(--line-dark);background:rgba(255,255,255,.055);box-shadow:none}.cards,.services,.testimonials{display:grid;gap:1rem;margin-top:2rem}.card{position:relative;overflow:hidden}.card::after{content:attr(data-code);position:absolute;right:1rem;bottom:.3rem;font-family:var(--font-display);font-size:3.4rem;color:rgba(48,78,137,.08)}.icon{width:45px;height:45px;border-radius:15px;background:linear-gradient(135deg,var(--red),var(--blue));color:var(--white);display:grid;place-items:center;font-weight:900;margin-bottom:1rem}.service{border:1px solid var(--line-dark);border-radius:var(--radius-lg);background:rgba(255,255,255,.055);padding:1.35rem}.service::before{content:"";display:block;width:52px;height:3px;border-radius:999px;background:var(--amber);margin-bottom:1rem}.band,.process,.stats{display:grid;gap:1rem;margin-top:2rem}.benefit,.process-item,.stat{border-radius:var(--radius-lg);padding:1.25rem}.benefit{background:var(--white);border:1px solid var(--line)}.process{counter-reset:step}.process-item{counter-increment:step;border:1px solid var(--line-dark);background:rgba(255,255,255,.055)}.process-item::before{content:"0" counter(step);display:block;font-family:var(--font-display);font-size:2rem;color:var(--amber)}.stat{background:var(--ink-950);color:var(--white)}.stat strong{display:block;color:var(--amber);font-size:2.35rem;letter-spacing:-.06em}.quote p{font-family:var(--font-display);font-size:1.12rem}.quote cite{font-style:normal;font-weight:900;color:var(--blue)}.faq{display:grid;gap:.8rem;margin-top:2rem}summary{font-weight:900;cursor:pointer}details p{margin:.75rem 0 0;color:var(--muted)}
.page-hero{padding:4rem 0 3rem;background:linear-gradient(135deg,rgba(231,78,60,.11),transparent 42%),radial-gradient(circle at 90% 0,rgba(48,78,137,.13),transparent 28rem)}.breadcrumb{font-size:.86rem;color:var(--muted);font-weight:850;margin-bottom:1rem}.content-block{border-radius:var(--radius-xl);padding:clamp(1.2rem,4vw,2rem)}.info-list{display:grid;gap:.75rem;margin-top:1rem}.info-item{border:1px solid var(--line);border-radius:16px;background:var(--white);padding:1rem}.legal h2{margin-top:2rem}.legal ul{padding-left:1.25rem;color:var(--muted)}.contact-grid{display:grid;gap:1rem}.form{display:grid;gap:.9rem}label{font-weight:900;font-size:.9rem}input,textarea,select{width:100%;border:1px solid var(--line);border-radius:16px;padding:.92rem 1rem;background:var(--white);color:var(--ink-900)}textarea{min-height:145px;resize:vertical}.map-placeholder{margin-top:1rem;min-height:280px;border-radius:var(--radius-lg);border:1px dashed rgba(48,78,137,.35);background:linear-gradient(135deg,rgba(231,78,60,.12),rgba(48,78,137,.13)),var(--paper-2);display:grid;place-items:center;text-align:center;color:var(--muted);padding:1rem}
.site-footer{background:var(--ink-950);color:var(--white);padding:3rem 0 1.4rem}.footer-grid{display:grid;gap:2rem}.footer-title{font-weight:950;letter-spacing:-.03em;font-size:1.22rem}.footer-data{color:rgba(255,253,248,.72);font-size:.92rem}.footer-links{display:grid;gap:.5rem}.footer-links a{color:rgba(255,253,248,.72)}.footer-links a:hover{color:var(--amber)}.footer-bottom{border-top:1px solid var(--line-dark);margin-top:2rem;padding-top:1rem;display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;color:rgba(255,253,248,.62);font-size:.86rem}
@media(min-width:760px){.two{grid-template-columns:1fr 1fr}.three{grid-template-columns:repeat(3,1fr)}.four{grid-template-columns:repeat(4,1fr)}.hero-grid{grid-template-columns:1.05fr .95fr}.cards,.services,.testimonials{grid-template-columns:repeat(3,1fr)}.band,.process,.stats{grid-template-columns:repeat(4,1fr)}.contact-grid{grid-template-columns:1.1fr .9fr}.footer-grid{grid-template-columns:1.2fr .8fr .8fr 1fr}}
@media(min-width:960px){.menu,.header-cta{display:flex}.mobile-actions{display:none}}
@media(prefers-reduced-motion:no-preference){.studio-board{animation:float 8s ease-in-out infinite}.marker{animation:pulse 3s ease-in-out infinite}@keyframes float{50%{transform:translateY(-8px)}}@keyframes pulse{50%{box-shadow:0 0 0 14px rgba(255,130,111,.04)}}}