/* ============================================================
   TEKNOVAK — Soluções em Medições
   Site institucional (estático). Portado do Teknovak Design System
   (Claude Design) para HTML/CSS/JS puro.
   Estrutura: tokens → base → utilitários → componentes → seções → responsivo
   ============================================================ */

/* ============================================================
   TOKENS — COLORS
   ============================================================ */
:root {
  /* Brand: Green (primary) */
  --green-50:#E8F7ED; --green-100:#C6ECD2; --green-200:#92DBA9; --green-300:#54C57C;
  --green-400:#22AC54; --green-500:#0F9D40; --green-600:#0B8235; --green-700:#08662A;
  --green-800:#064E20; --green-900:#043417;

  /* Brand: Red (secondary / alert) */
  --red-50:#FDEAEB; --red-100:#FACCCE; --red-200:#F49A9D; --red-300:#EE686C;
  --red-400:#E83C41; --red-500:#E11B22; --red-600:#BE131A; --red-700:#970E15;
  --red-800:#720A10; --red-900:#4D070B;

  /* Measurement spectrum (cold → hot) */
  --spectrum-cold:#2BA8E0; --spectrum-cool:#3FBF8F; --spectrum-mid:#8DC63F;
  --spectrum-warm:#F2C500; --spectrum-hot:#F39200; --spectrum-max:#E11B22;
  --spectrum-gradient: linear-gradient(90deg,
    var(--spectrum-cold) 0%, var(--spectrum-cool) 22%, var(--spectrum-mid) 44%,
    var(--spectrum-warm) 64%, var(--spectrum-hot) 82%, var(--spectrum-max) 100%);

  /* Neutrals: cool industrial slate */
  --ink-950:#0A0F13; --ink-900:#0E1419; --ink-800:#18222B; --ink-700:#2C3A45;
  --ink-600:#475561; --ink-500:#64727E; --ink-400:#8B97A1; --ink-300:#B6BFC7;
  --ink-200:#D9DEE3; --ink-100:#ECEFF1; --ink-50:#F5F7F8; --white:#FFFFFF;

  /* Semantic aliases */
  --color-brand:var(--green-500); --color-brand-strong:var(--green-600); --color-brand-soft:var(--green-50);
  --color-accent:var(--red-500); --color-accent-strong:var(--red-600); --color-accent-soft:var(--red-50);
  --text-strong:var(--ink-900); --text-body:var(--ink-700); --text-muted:var(--ink-500);
  --text-subtle:var(--ink-400); --text-on-brand:var(--white); --text-inverse:var(--white);
  --surface-page:var(--ink-50); --surface-card:var(--white); --surface-sunken:var(--ink-100);
  --surface-inverse:var(--ink-900); --surface-brand:var(--green-500);
  --border-subtle:var(--ink-200); --border-default:var(--ink-300); --border-strong:var(--ink-400);
  --border-brand:var(--green-500);
  --focus-ring: color-mix(in srgb, var(--green-500) 45%, transparent);

  /* TYPOGRAPHY */
  --font-display:"Saira","Arial Narrow",system-ui,sans-serif;
  --font-body:"IBM Plex Sans",system-ui,-apple-system,sans-serif;
  --font-mono:"IBM Plex Mono","SFMono-Regular",ui-monospace,monospace;
  --weight-regular:400; --weight-medium:500; --weight-semibold:600; --weight-bold:700; --weight-extra:800;
  --text-2xs:0.6875rem; --text-xs:0.75rem; --text-sm:0.875rem; --text-md:1rem; --text-lg:1.125rem;
  --text-xl:1.375rem; --text-2xl:1.75rem; --text-3xl:2.25rem; --text-4xl:3rem; --text-5xl:3.875rem; --text-6xl:5rem;
  --leading-tight:1.05; --leading-snug:1.2; --leading-normal:1.5; --leading-relaxed:1.65;
  --tracking-tight:-0.02em; --tracking-normal:0; --tracking-wide:0.04em; --tracking-caps:0.12em;

  /* SPACING / RADIUS / SHADOW / LAYOUT / MOTION */
  --space-1:0.25rem; --space-2:0.5rem; --space-3:0.75rem; --space-4:1rem; --space-5:1.5rem;
  --space-6:2rem; --space-7:2.5rem; --space-8:3rem; --space-9:4rem; --space-10:5rem; --space-11:6rem; --space-12:8rem;
  --radius-xs:3px; --radius-sm:5px; --radius-md:8px; --radius-lg:12px; --radius-xl:18px; --radius-pill:999px;
  --border-thin:1px; --border-base:1.5px; --border-thick:3px;
  --shadow-xs:0 1px 2px rgba(14,20,25,.06);
  --shadow-sm:0 1px 3px rgba(14,20,25,.08),0 1px 2px rgba(14,20,25,.06);
  --shadow-md:0 4px 12px rgba(14,20,25,.08),0 2px 4px rgba(14,20,25,.05);
  --shadow-lg:0 12px 28px rgba(14,20,25,.12),0 4px 8px rgba(14,20,25,.06);
  --shadow-xl:0 24px 56px rgba(14,20,25,.16);
  --shadow-brand:0 10px 24px rgba(15,157,64,.28);
  --container-max:1200px; --container-wide:1360px; --header-height:76px;
  --ease-out:cubic-bezier(.22,1,.36,1); --ease-in-out:cubic-bezier(.65,0,.35,1);
  --duration-fast:140ms; --duration-base:220ms; --duration-slow:360ms;
}

/* ============================================================
   BASE
   ============================================================ */
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:var(--header-height);}
body{
  margin:0;font-family:var(--font-body);font-size:var(--text-md);line-height:var(--leading-normal);
  color:var(--text-body);background:var(--surface-card);
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,h5{font-family:var(--font-display);color:var(--text-strong);line-height:var(--leading-snug);margin:0;font-weight:var(--weight-bold);}
h1{font-size:clamp(2.25rem,6vw,3rem);line-height:var(--leading-tight);letter-spacing:var(--tracking-tight);}
h2{font-size:clamp(1.6rem,4.5vw,2.25rem);letter-spacing:var(--tracking-tight);}
h3{font-size:clamp(1.3rem,3.2vw,1.75rem);}
h4{font-size:var(--text-xl);}
p{margin:0;}
img{max-width:100%;display:block;}
a{color:var(--color-brand-strong);text-decoration:none;}
a:hover{text-decoration:underline;}
button{font-family:inherit;}
:focus-visible{outline:3px solid var(--focus-ring);outline-offset:2px;}

/* ============================================================
   UTILITIES
   ============================================================ */
.tk-container{max-width:var(--container-max);margin:0 auto;padding:0 24px;}
.tk-section{padding:clamp(56px,7vw,96px) 0;}
.tk-eyebrow{
  font-family:var(--font-display);font-weight:var(--weight-semibold);font-size:var(--text-xs);
  letter-spacing:var(--tracking-caps);text-transform:uppercase;color:var(--color-brand-strong);
}
.tk-spectrum-bar{height:4px;border-radius:var(--radius-pill);background:var(--spectrum-gradient);}
.tk-spec{font-family:var(--font-mono);font-variant-numeric:tabular-nums;}
.tk-visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;}

/* ============================================================
   COMPONENT — Button
   ============================================================ */
.tk-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);
  height:44px;padding:0 20px;font-family:var(--font-display);font-weight:var(--weight-semibold);
  font-size:var(--text-md);letter-spacing:.01em;border-radius:var(--radius-md);cursor:pointer;
  white-space:nowrap;border:var(--border-base) solid transparent;
  transition:transform var(--duration-fast) var(--ease-out),filter var(--duration-fast) var(--ease-out);
}
.tk-btn svg{width:16px;height:16px;}
.tk-btn:hover{filter:brightness(1.06);text-decoration:none;}
.tk-btn:active{transform:translateY(1px) scale(.99);}
.tk-btn--sm{height:36px;padding:0 14px;font-size:var(--text-sm);}
.tk-btn--lg{height:54px;padding:0 28px;font-size:var(--text-lg);}
.tk-btn--lg svg{width:18px;height:18px;}
.tk-btn--block{width:100%;}
.tk-btn--primary{background:var(--color-brand-strong);color:var(--text-on-brand);border-color:var(--color-brand-strong);box-shadow:var(--shadow-brand);}
.tk-btn--accent{background:var(--color-accent);color:var(--text-on-brand);border-color:var(--color-accent);box-shadow:0 10px 24px rgba(225,27,34,.26);}
.tk-btn--outline{background:transparent;color:var(--color-brand-strong);border-color:var(--border-default);}
.tk-btn--ghost{background:transparent;color:var(--text-strong);border-color:transparent;}
.tk-btn--on-dark{color:var(--white);border-color:rgba(255,255,255,.35);}
.tk-btn[disabled]{opacity:.45;cursor:not-allowed;}

/* ============================================================
   COMPONENT — Card
   ============================================================ */
.tk-card{
  position:relative;background:var(--surface-card);border:1px solid var(--border-subtle);
  border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:var(--space-6);overflow:hidden;
  transition:transform var(--duration-base) var(--ease-out),box-shadow var(--duration-base) var(--ease-out);
}
.tk-card--hoverable:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);}
.tk-card--flush{padding:0;}
.tk-card__spectrum{position:absolute;top:0;left:0;right:0;height:4px;background:var(--spectrum-gradient);}

/* ============================================================
   COMPONENT — Badge
   ============================================================ */
.tk-badge{
  display:inline-flex;align-items:center;gap:6px;padding:3px 10px;font-family:var(--font-display);
  font-weight:var(--weight-semibold);font-size:var(--text-xs);letter-spacing:var(--tracking-wide);
  text-transform:uppercase;line-height:1.4;border-radius:var(--radius-pill);border:1px solid transparent;
}
.tk-badge--neutral{background:var(--ink-100);color:var(--ink-700);border-color:var(--ink-200);}
.tk-badge--brand{background:var(--green-50);color:var(--green-700);border-color:var(--green-200);}
.tk-badge--accent{background:var(--red-50);color:var(--red-700);border-color:var(--red-200);}
.tk-badge--info{background:#E6F4FB;color:#0B5E86;border-color:#BDE3F4;}

/* ============================================================
   COMPONENT — Form fields
   ============================================================ */
.tk-field{display:flex;flex-direction:column;gap:var(--space-2);}
.tk-field--full{grid-column:1 / -1;}
.tk-label{font-size:var(--text-sm);font-weight:var(--weight-medium);color:var(--text-strong);}
.tk-label .tk-req{color:var(--color-accent);margin-left:4px;}
.tk-input,.tk-select,.tk-textarea{
  width:100%;font-family:var(--font-body);font-size:var(--text-md);color:var(--text-strong);
  background:var(--surface-card);border:1.5px solid var(--border-default);border-radius:var(--radius-md);
  outline:none;transition:border-color var(--duration-fast) var(--ease-out),box-shadow var(--duration-fast) var(--ease-out);
}
.tk-input{height:46px;padding:0 14px;}
.tk-textarea{padding:12px 14px;resize:vertical;}
.tk-input:focus,.tk-select:focus,.tk-textarea:focus{border-color:var(--color-brand);box-shadow:0 0 0 3px var(--focus-ring);}
.tk-select-wrap{position:relative;}
.tk-select{height:46px;padding:0 40px 0 14px;appearance:none;-webkit-appearance:none;cursor:pointer;}
.tk-select-wrap::after{content:"▾";position:absolute;right:14px;top:50%;transform:translateY(-50%);pointer-events:none;color:var(--text-muted);font-size:12px;}
.tk-field__hint{font-size:var(--text-xs);color:var(--text-muted);}
.tk-field__error{font-size:var(--text-xs);color:var(--color-accent-strong);display:none;}
.tk-field.is-invalid .tk-input,.tk-field.is-invalid .tk-textarea,.tk-field.is-invalid .tk-select{border-color:var(--color-accent);}
.tk-field.is-invalid .tk-field__error{display:block;}

/* ============================================================
   HEADER
   ============================================================ */
.tk-header{position:sticky;top:0;z-index:50;background:var(--surface-card);border-bottom:1px solid var(--border-subtle);transition:all var(--duration-base) var(--ease-out);}
.tk-header.is-scrolled{background:rgba(255,255,255,.92);backdrop-filter:saturate(180%) blur(10px);box-shadow:var(--shadow-sm);}
.tk-header__spectrum{position:absolute;left:0;right:0;bottom:0;height:3px;background:var(--spectrum-gradient);opacity:.9;}
.tk-header__inner{max-width:var(--container-max);margin:0 auto;height:var(--header-height);padding:0 24px;display:flex;align-items:center;justify-content:space-between;}
.tk-header__logo{display:flex;align-items:center;}
.tk-header__logo img{height:44px;width:auto;}
.tk-nav{display:flex;align-items:center;gap:4px;}
.tk-nav__link{padding:8px 14px;font-family:var(--font-display);font-weight:600;font-size:var(--text-sm);color:var(--text-body);border-radius:var(--radius-sm);transition:color var(--duration-fast) var(--ease-out);}
.tk-nav__link:hover{color:var(--color-brand-strong);text-decoration:none;}
.tk-menu-toggle{display:none;background:none;border:none;cursor:pointer;color:var(--text-strong);padding:6px;}
.tk-mobile-menu{display:none;border-top:1px solid var(--border-subtle);padding:12px 24px 20px;}
.tk-mobile-menu.is-open{display:flex;flex-direction:column;gap:4px;}
.tk-mobile-menu a{padding:12px 8px;font-family:var(--font-display);font-weight:600;color:var(--text-strong);border-bottom:1px solid var(--border-subtle);}

/* ============================================================
   HERO
   ============================================================ */
.tk-hero{position:relative;min-height:min(88vh,760px);display:flex;align-items:center;overflow:hidden;background:var(--ink-900);color:var(--white);}
/* malha pontilhada de fallback (aparece se a imagem do hero não carregar) */
.tk-hero::before{
  content:"";position:absolute;inset:0;opacity:.5;
  background-image:radial-gradient(circle at 1px 1px, rgba(255,255,255,.10) 1px, transparent 0);
  background-size:26px 26px;
  -webkit-mask-image:radial-gradient(120% 90% at 75% 30%, #000 0%, transparent 70%);
  mask-image:radial-gradient(120% 90% at 75% 30%, #000 0%, transparent 70%);
}
.tk-hero__bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center;}
.tk-hero__scrim{position:absolute;inset:0;background:linear-gradient(100deg, rgba(8,12,16,.92) 0%, rgba(8,12,16,.74) 34%, rgba(8,12,16,.30) 60%, rgba(8,12,16,.08) 100%);}
.tk-hero__inner{position:relative;z-index:1;width:100%;padding-top:clamp(64px,9vw,120px);padding-bottom:clamp(64px,9vw,120px);}
.tk-hero__content{max-width:660px;}
.tk-hero__eyebrow{color:var(--green-400);margin-bottom:18px;}
.tk-hero h1{font-size:clamp(34px,5.6vw,68px);font-weight:800;letter-spacing:-.02em;line-height:1.04;margin-bottom:24px;color:var(--white);}
.tk-hero h1 .g{color:var(--green-400);}
.tk-hero h1 .r{color:var(--red-400);}
.tk-hero__lead{font-size:var(--text-xl);line-height:1.55;color:var(--ink-200);max-width:540px;margin-bottom:20px;}
.tk-hero__rule{max-width:360px;margin-bottom:34px;}
.tk-hero__rule .tk-spectrum-bar{height:6px;}
.tk-hero__actions{display:flex;gap:14px;flex-wrap:wrap;}
.tk-hero__spectrum{position:absolute;left:0;right:0;bottom:0;height:5px;background:var(--spectrum-gradient);z-index:2;}

/* ============================================================
   STATS
   ============================================================ */
.tk-stats{background:var(--ink-900);color:var(--white);}
.tk-stats__grid{display:grid;grid-template-columns:repeat(4,1fr);}
.tk-stat{padding:34px 24px;display:flex;flex-direction:column;gap:8px;border-left:1px solid rgba(255,255,255,.1);}
.tk-stat:first-child{border-left:none;}
.tk-stat svg{width:26px;height:26px;color:var(--green-400);}
.tk-stat__value{font-family:var(--font-display);font-weight:700;font-size:var(--text-xl);margin-top:6px;}
.tk-stat__label{font-size:var(--text-sm);color:var(--ink-300);line-height:1.45;}

/* ============================================================
   ABOUT
   ============================================================ */
.tk-about{background:var(--surface-card);}
.tk-about__grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;}
.tk-about__lead{font-size:var(--text-lg);color:var(--text-body);line-height:1.6;margin-bottom:16px;}
.tk-about p.tk-about__text{color:var(--text-body);line-height:1.65;margin-bottom:28px;}
.tk-pillars{display:flex;flex-direction:column;gap:16px;}
.tk-pillar{display:flex;gap:16px;align-items:flex-start;}
.tk-pillar__icon{flex:none;width:44px;height:44px;border-radius:var(--radius-md);background:var(--green-50);display:flex;align-items:center;justify-content:center;}
.tk-pillar__icon svg{width:22px;height:22px;color:var(--color-brand-strong);}
.tk-pillar__title{font-family:var(--font-display);font-weight:700;color:var(--text-strong);margin-bottom:2px;}
.tk-pillar__text{font-size:var(--text-sm);color:var(--text-body);}
.tk-about__media{position:relative;border-radius:var(--radius-xl);overflow:hidden;border:1px solid var(--border-subtle);box-shadow:var(--shadow-lg);background:var(--ink-900);aspect-ratio:4/5;display:flex;flex-direction:column;justify-content:flex-end;}
.tk-about__media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;}
.tk-about__media-scrim{position:absolute;inset:0;background:linear-gradient(to top,rgba(10,15,19,.92) 0%,rgba(10,15,19,.35) 45%,transparent 70%);}
.tk-about__media-spectrum{position:absolute;top:0;left:0;right:0;height:5px;background:var(--spectrum-gradient);}
.tk-about__media-body{position:relative;padding:28px;}
.tk-about__media-spec{color:var(--green-400);font-size:13px;letter-spacing:.08em;margin-bottom:8px;}
.tk-about__media-title{color:var(--white);font-family:var(--font-display);font-weight:800;font-size:var(--text-2xl);line-height:1.1;margin-bottom:10px;}
.tk-about__media-sub{color:var(--ink-300);font-size:var(--text-sm);}

/* ============================================================
   SERVICES
   ============================================================ */
.tk-services{background:var(--surface-page);}
.tk-section__head{margin-bottom:44px;max-width:640px;}
.tk-section__head h2{margin-top:12px;}
.tk-services__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.tk-service{display:flex;flex-direction:column;gap:14px;}
.tk-service__icon{width:48px;height:48px;border-radius:var(--radius-md);background:var(--ink-900);display:flex;align-items:center;justify-content:center;}
.tk-service__icon svg{width:24px;height:24px;color:var(--green-400);}
.tk-service h3{font-size:var(--text-lg);}
.tk-service p{font-size:var(--text-sm);color:var(--text-body);line-height:1.55;}

/* ============================================================
   PRODUCTS (catálogo acordeão)
   ============================================================ */
.tk-products{background:var(--surface-page);}
.tk-products__inner{max-width:980px;margin:0 auto;padding:0 24px;}
.tk-products__head{margin-bottom:40px;max-width:640px;}
.tk-products__head h2{margin:12px 0 14px;}
.tk-products__head p{font-size:var(--text-lg);color:var(--text-body);}
.tk-products__list{display:flex;flex-direction:column;gap:14px;}
.tk-prod{transition:box-shadow var(--duration-base) var(--ease-out);}
.tk-prod.is-open{box-shadow:var(--shadow-lg);}
.tk-prod__btn{width:100%;display:flex;align-items:center;gap:20px;padding:18px;background:none;border:none;cursor:pointer;text-align:left;}
.tk-prod__thumb{flex:none;width:84px;height:84px;border-radius:var(--radius-md);overflow:hidden;border:1px solid var(--border-subtle);background:#fff;}
.tk-prod__thumb img{width:100%;height:100%;object-fit:cover;}
.tk-prod__head{flex:1;min-width:0;}
.tk-prod__head h3{font-size:var(--text-xl);margin:8px 0 4px;}
.tk-prod__summary{font-size:var(--text-sm);color:var(--text-body);line-height:1.5;}
.tk-prod__toggle{flex:none;display:flex;align-items:center;gap:14px;}
.tk-prod__toggle-label{font-family:var(--font-display);font-weight:600;font-size:var(--text-sm);color:var(--color-brand-strong);white-space:nowrap;}
.tk-prod__chev{flex:none;width:36px;height:36px;border-radius:50%;background:var(--ink-100);display:flex;align-items:center;justify-content:center;transition:all var(--duration-base) var(--ease-out);}
.tk-prod__chev svg{width:20px;height:20px;color:var(--ink-600);transition:transform var(--duration-base) var(--ease-out);}
.tk-prod.is-open .tk-prod__chev{background:var(--color-brand);}
.tk-prod.is-open .tk-prod__chev svg{color:#fff;transform:rotate(180deg);}
.tk-prod__panel{display:grid;grid-template-rows:0fr;transition:grid-template-rows var(--duration-slow) var(--ease-out);}
.tk-prod.is-open .tk-prod__panel{grid-template-rows:1fr;}
.tk-prod__panel-inner{overflow:hidden;}
.tk-prod__detail{padding:4px 18px 22px;border-top:1px solid var(--border-subtle);margin-top:2px;}
.tk-prod__detail-grid{display:grid;grid-template-columns:1fr 1.05fr .95fr;gap:28px;padding-top:18px;}
.tk-prod__img{border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--border-subtle);background:#fff;align-self:start;}
.tk-prod__img img{width:100%;display:block;aspect-ratio:1/1;object-fit:cover;}
.tk-spec-table{width:100%;border-collapse:collapse;}
.tk-spec-table tr{border-bottom:1px solid var(--border-subtle);}
.tk-spec-table td{padding:10px 0;font-size:var(--text-sm);vertical-align:top;}
.tk-spec-table td:first-child{padding-right:12px;color:var(--text-muted);width:42%;}
.tk-spec-table td:last-child{color:var(--text-strong);font-weight:500;font-family:var(--font-mono);}
.tk-prod__side{display:flex;flex-direction:column;gap:18px;}
.tk-prod__highlights{display:flex;gap:18px;flex-wrap:wrap;}
.tk-prod__hl-label{font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--text-muted);font-family:var(--font-display);font-weight:600;margin-bottom:2px;}
.tk-prod__hl-value{font-family:var(--font-mono);font-size:var(--text-md);font-weight:500;color:var(--text-strong);}
.tk-prod__hl-value small{font-size:12px;color:var(--text-muted);margin-left:3px;}
.tk-prod__uses{background:var(--green-50);border:1px solid var(--green-200);border-radius:var(--radius-md);padding:14px 16px;}
.tk-prod__uses-head{display:flex;align-items:center;gap:8px;margin-bottom:6px;}
.tk-prod__uses-head svg{width:16px;height:16px;color:var(--color-brand-strong);}
.tk-prod__uses-head span{font-family:var(--font-display);font-weight:700;font-size:var(--text-sm);color:var(--green-800);}
.tk-prod__uses p{font-size:var(--text-sm);color:var(--green-900);line-height:1.5;}

/* ============================================================
   CONTACT / QUOTE
   ============================================================ */
.tk-contact{background:var(--surface-card);}
.tk-contact__grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:56px;align-items:start;}
.tk-contact__lead{font-size:var(--text-lg);color:var(--text-body);line-height:1.6;margin:16px 0 32px;}
.tk-contact__list{display:flex;flex-direction:column;gap:20px;}
.tk-contact__item{display:flex;gap:14px;align-items:center;}
.tk-contact__item .ic{flex:none;width:46px;height:46px;border-radius:var(--radius-md);background:var(--green-50);display:flex;align-items:center;justify-content:center;}
.tk-contact__item .ic svg{width:21px;height:21px;color:var(--color-brand-strong);}
.tk-contact__label{font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--text-muted);font-family:var(--font-display);font-weight:600;}
.tk-contact__value{font-size:var(--text-md);color:var(--text-strong);font-weight:500;}
a.tk-contact__value:hover{color:var(--color-brand-strong);}
.tk-form{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.tk-consent{grid-column:1 / -1;display:flex;gap:10px;align-items:flex-start;font-size:var(--text-sm);color:var(--text-body);}
.tk-consent input{margin-top:3px;flex:none;width:18px;height:18px;accent-color:var(--color-brand);}
.tk-form__hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden;}
.tk-form__status{grid-column:1 / -1;font-size:var(--text-sm);}
.tk-map{margin-top:28px;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--border-subtle);box-shadow:var(--shadow-sm);}
.tk-map iframe{display:block;width:100%;height:240px;border:0;}

/* ============================================================
   FOOTER
   ============================================================ */
.tk-footer{background:var(--ink-950);color:var(--ink-300);}
.tk-footer__top{height:4px;background:var(--spectrum-gradient);}
.tk-footer__grid{max-width:var(--container-max);margin:0 auto;padding:56px 24px 28px;display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:40px;}
.tk-footer__brand-logo{background:var(--white);display:inline-flex;padding:10px 14px;border-radius:var(--radius-md);margin-bottom:18px;}
.tk-footer__brand-logo img{height:38px;}
.tk-footer__brand p{font-size:var(--text-sm);line-height:1.6;max-width:300px;}
.tk-footer__col-title{font-family:var(--font-display);font-weight:700;color:var(--white);font-size:var(--text-sm);letter-spacing:.04em;text-transform:uppercase;margin-bottom:16px;}
.tk-footer__links{display:flex;flex-direction:column;gap:10px;}
.tk-footer__links a{font-size:var(--text-sm);color:var(--ink-300);}
.tk-footer__links a:hover{color:var(--green-400);text-decoration:none;}
.tk-footer__bar{border-top:1px solid rgba(255,255,255,.08);}
.tk-footer__bar-inner{max-width:var(--container-max);margin:0 auto;padding:20px 24px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:var(--text-xs);color:var(--ink-400);}

/* ============================================================
   FLOATING WHATSAPP
   ============================================================ */
.tk-wa{position:fixed;right:20px;bottom:20px;z-index:60;display:inline-flex;align-items:center;justify-content:center;width:58px;height:58px;border-radius:50%;background:#25D366;color:#fff;box-shadow:var(--shadow-lg);transition:transform var(--duration-fast) var(--ease-out);}
.tk-wa:hover{transform:scale(1.06);text-decoration:none;}
.tk-wa svg{width:30px;height:30px;}

/* ============================================================
   RESPONSIVE
   ============================================================ */
/* Tablet landscape */
@media (max-width:1024px){
  .tk-hero__content{max-width:560px;}
  .tk-about__grid{gap:48px;}
  .tk-contact__grid{gap:40px;}
}

/* Tablet / ativa menu mobile */
@media (max-width:900px){
  .tk-nav{display:none;}
  .tk-menu-toggle{display:inline-flex;}
  .tk-about__grid{grid-template-columns:1fr;gap:40px;}
  .tk-contact__grid{grid-template-columns:1fr;gap:36px;}
  .tk-stats__grid,.tk-services__grid{grid-template-columns:1fr 1fr;}
  .tk-stat{border-left:none;}
  .tk-prod__detail-grid{grid-template-columns:1fr 1fr;}
  .tk-prod__img{grid-column:1 / -1;max-width:380px;}
  .tk-footer__grid{grid-template-columns:1fr 1fr;gap:32px 24px;}
  /* Hero: scrim escuro e uniforme no mobile (texto sobre toda a largura) */
  .tk-hero__bg{object-position:70% center;}
  .tk-hero__scrim{background:linear-gradient(180deg, rgba(8,12,16,.90) 0%, rgba(8,12,16,.82) 55%, rgba(8,12,16,.76) 100%);}
}

/* Celular grande */
@media (max-width:640px){
  .tk-hero{min-height:auto;}
  .tk-hero__inner{padding-top:clamp(48px,16vw,80px);padding-bottom:clamp(48px,16vw,80px);}
  .tk-hero__lead{font-size:var(--text-lg);}
  .tk-stats__grid,.tk-services__grid,.tk-form{grid-template-columns:1fr;}
  .tk-prod__detail-grid{grid-template-columns:1fr;}
  .tk-prod__toggle-label,.tk-prod__summary{display:none;}
  .tk-prod__btn{gap:14px;padding:14px;}
  .tk-prod__thumb{width:64px;height:64px;}
  .tk-map iframe{height:220px;}
}

/* Celular pequeno */
@media (max-width:430px){
  .tk-container,.tk-products__inner,.tk-header__inner{padding-left:16px;padding-right:16px;}
  .tk-footer__grid{grid-template-columns:1fr;}
  .tk-card{padding:var(--space-5);}
  .tk-hero__actions{flex-direction:column;align-items:stretch;}
  .tk-hero__actions .tk-btn{width:100%;}
  .tk-prod__highlights{gap:14px;}
  .tk-footer__bar-inner{flex-direction:column;align-items:flex-start;gap:6px;}
}

@media (prefers-reduced-motion:reduce){
  *{scroll-behavior:auto !important;transition:none !important;}
}

/* ============================================================
   MULTIPÁGINA — breadcrumb, page-hero, nav ativo, prévias
   ============================================================ */
.tk-nav__link.is-active{color:var(--color-brand-strong);}

/* Cabeçalho de página interna */
.tk-page-hero{position:relative;background:var(--ink-900);color:var(--white);overflow:hidden;}
.tk-page-hero::before{content:"";position:absolute;inset:0;opacity:.45;
  background-image:radial-gradient(circle at 1px 1px, rgba(255,255,255,.10) 1px, transparent 0);
  background-size:26px 26px;
  -webkit-mask-image:radial-gradient(120% 120% at 80% 20%, #000 0%, transparent 70%);
  mask-image:radial-gradient(120% 120% at 80% 20%, #000 0%, transparent 70%);}
.tk-page-hero__inner{position:relative;z-index:1;max-width:var(--container-max);margin:0 auto;padding:clamp(40px,6vw,72px) 24px;}
.tk-page-hero .tk-eyebrow{color:var(--green-400);margin-bottom:10px;}
.tk-page-hero h1{color:var(--white);font-size:clamp(30px,4.5vw,46px);}
.tk-page-hero p{color:var(--ink-200);max-width:660px;margin-top:12px;font-size:var(--text-lg);}
.tk-page-hero__spectrum{position:absolute;left:0;right:0;bottom:0;height:4px;background:var(--spectrum-gradient);}

/* Breadcrumb */
.tk-breadcrumb{background:var(--surface-card);border-bottom:1px solid var(--border-subtle);}
.tk-breadcrumb__inner{max-width:var(--container-max);margin:0 auto;padding:12px 24px;font-size:var(--text-sm);color:var(--text-muted);display:flex;gap:8px;flex-wrap:wrap;align-items:center;}
.tk-breadcrumb a{color:var(--text-muted);}
.tk-breadcrumb a:hover{color:var(--color-brand-strong);}
.tk-breadcrumb__sep{color:var(--border-default);}
.tk-breadcrumb [aria-current]{color:var(--text-strong);font-weight:600;}

/* Prévias na Home (cards que linkam para páginas) */
.tk-prev-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.tk-prev{display:flex;flex-direction:column;gap:12px;text-decoration:none;color:inherit;}
.tk-prev:hover{text-decoration:none;}
.tk-prev__media{border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--border-subtle);background:#fff;aspect-ratio:4/3;}
.tk-prev__media img{width:100%;height:100%;object-fit:cover;}
.tk-prev h3{font-size:var(--text-lg);}
.tk-prev p{font-size:var(--text-sm);color:var(--text-body);line-height:1.5;}
.tk-prev__more{font-family:var(--font-display);font-weight:600;font-size:var(--text-sm);color:var(--color-brand-strong);display:inline-flex;align-items:center;gap:6px;}
.tk-prev:hover .tk-prev__more{gap:10px;}

@media (max-width:900px){
  .tk-prev-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:560px){
  .tk-prev-grid{grid-template-columns:1fr;}
}

/* ============================================================
   MESTRE-DETALHE — catálogo de produtos (lista + painel ao lado)
   ============================================================ */
.tk-md{display:grid;grid-template-columns:minmax(260px,340px) 1fr;gap:24px;align-items:start;}
.tk-md__master{display:flex;flex-direction:column;gap:14px;}
.tk-md__filter{display:flex;gap:8px;flex-wrap:wrap;}
.tk-md__filter-btn{flex:1;min-width:80px;font-family:var(--font-display);font-weight:600;font-size:var(--text-sm);padding:9px 8px;border-radius:var(--radius-pill);border:1.5px solid var(--border-default);background:var(--surface-card);color:var(--text-body);cursor:pointer;transition:border-color var(--duration-fast) var(--ease-out),background var(--duration-fast) var(--ease-out),color var(--duration-fast) var(--ease-out);}
.tk-md__filter-btn:hover{border-color:var(--color-brand);color:var(--color-brand-strong);}
.tk-md__filter-btn.is-active{background:var(--color-brand);border-color:var(--color-brand);color:var(--white);box-shadow:var(--shadow-brand);}
.tk-md__item[hidden]{display:none;}
.tk-md__list{display:flex;flex-direction:column;gap:10px;}
.tk-md__item{display:flex;gap:12px;align-items:center;width:100%;text-align:left;background:var(--surface-card);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);padding:12px;cursor:pointer;box-shadow:var(--shadow-sm);transition:border-color var(--duration-fast) var(--ease-out),box-shadow var(--duration-fast) var(--ease-out),transform var(--duration-fast) var(--ease-out);}
.tk-md__item:hover{border-color:var(--border-default);transform:translateX(2px);}
.tk-md__item.is-active{border-color:var(--color-brand);box-shadow:0 0 0 2px var(--focus-ring),var(--shadow-sm);}
.tk-md__thumb{flex:none;width:54px;height:54px;border-radius:var(--radius-sm);overflow:hidden;border:1px solid var(--border-subtle);background:#fff;}
.tk-md__thumb img{width:100%;height:100%;object-fit:cover;}
.tk-md__info{min-width:0;display:flex;flex-direction:column;gap:2px;}
.tk-md__tag{font-size:var(--text-2xs);letter-spacing:var(--tracking-wide);text-transform:uppercase;color:var(--color-brand-strong);font-family:var(--font-display);font-weight:600;}
.tk-md__name{font-family:var(--font-display);font-weight:700;font-size:var(--text-md);color:var(--text-strong);line-height:1.2;}
.tk-md__chev{flex:none;margin-left:auto;color:var(--ink-300);transition:color var(--duration-fast) var(--ease-out),transform var(--duration-base) var(--ease-out);}
.tk-md__chev svg{width:18px;height:18px;display:block;}
.tk-md__item.is-active .tk-md__chev{color:var(--color-brand);transform:translateX(2px);}

.tk-md__detail{position:relative;}
.tk-md__panel{display:none;}
.tk-md__panel.is-active{display:block;animation:tk-md-in var(--duration-slow) var(--ease-out);}
@keyframes tk-md-in{from{opacity:0;transform:translateY(10px);}to{opacity:1;transform:none;}}
.tk-md__head{margin-bottom:18px;}
.tk-md__head h3{font-size:var(--text-2xl);margin:8px 0 6px;}
.tk-md__head p{font-size:var(--text-sm);color:var(--text-body);line-height:1.5;}
.tk-md__grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:24px;align-items:start;}
.tk-md__figure{border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--border-subtle);background:#fff;align-self:start;}
.tk-md__figure img{width:100%;display:block;aspect-ratio:1/1;object-fit:cover;}

@media (max-width:900px){
  .tk-md{grid-template-columns:1fr;}
}
@media (max-width:560px){
  .tk-md__grid{grid-template-columns:1fr;}
}