/* ============================================================
   LINHA FORTE — FIXAÇÕES AUTOMOTIVAS  |  style.css
   Identidade: preto carvão + laranja cobre (#C86B2A)
   ============================================================ */

/* ─── DESIGN TOKENS ──────────────────────────────────────── */
:root {
  --ink:          #0D0D0D;
  --ink-soft:     #1C1C1C;
  --copper:       #C86B2A;   /* cor secundária da marca */
  --copper-dark:  #A8551F;   /* hover / pressionado     */
  --copper-light: #E08A4D;   /* acentos sobre fundo preto */
  --cream:        #F8F6F2;
  --gray-100:     #EEEBE6;
  --gray-300:     #C0BAB3;
  --gray-500:     #7A7068;
  --gray-700:     #3A3530;
  --white:        #FFFFFF;

  /* Acentos do catálogo — família metálica/terrosa, on-brand */
  --c-fixacao:     #C86B2A;  /* cobre     */
  --c-arruela:     #B0822E;  /* latão     */
  --c-rebite:      #5B7280;  /* aço       */
  --c-abracadeira: #8A6E55;  /* taupe     */
  --c-eletrica:    #3A3530;  /* grafite   */
  --c-mangueira:   #6E7B5B;  /* oliva     */
  --c-quimica:     #9A5A3A;  /* terracota */
  --c-diversos:    #7A7068;  /* cinza     */
  --c-grampo:      #4A6572;  /* ardósia   */

  --font-display: 'Roboto Slab', Georgia, serif;
  --font-body:    'Inter', system-ui, sans-serif;

  --radius:    8px;
  --radius-sm: 5px;
  --radius-lg: 14px;
  --shadow-sm: 0 2px 10px rgba(0,0,0,0.07);
  --shadow-md: 0 8px 32px rgba(0,0,0,0.12);
  --transition: 0.18s ease;
  --nav-h: 70px;
}

/* ─── RESET ──────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-body); color: var(--gray-700); background: var(--white); line-height: 1.6; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; }

/* ─── LAYOUT ─────────────────────────────────────────────── */
.container    { max-width: 1100px; margin: 0 auto; padding: 0 2.5rem; }
.section      { padding: 5.5rem 2.5rem; }
.section--cream { background: var(--cream); }
.section--dark  { background: var(--ink); }

/* ─── BRAND LOCKUP ───────────────────────────────────────── */
.brand-mark { height: 42px; width: auto; display: block; }
.brand-word { font-family: var(--font-display); font-size: 1.12rem; font-weight: 700; color: var(--ink); line-height: 1; letter-spacing: 0.01em; }
.brand-word small { display: block; font-family: var(--font-body); font-size: 0.5rem; font-weight: 700; letter-spacing: 0.22em; text-transform: uppercase; color: var(--copper); margin-top: 4px; }
.brand--light .brand-word { color: var(--white); }
.brand--light .brand-mark { filter: invert(1); }

/* ─── TYPOGRAPHY ──────────────────────────────────────────── */
.eyebrow { font-size: 0.68rem; font-weight: 700; letter-spacing: 0.22em; text-transform: uppercase; color: var(--copper); margin-bottom: 0.5rem; }
.section-rule { width: 32px; height: 3px; background: var(--copper); border-radius: 2px; margin-bottom: 1.25rem; }
.section-title { font-family: var(--font-display); font-size: clamp(1.8rem, 3vw, 2.5rem); font-weight: 700; color: var(--ink); line-height: 1.18; letter-spacing: -0.01em; margin-bottom: 1rem; }
.section-title--light { color: var(--white); }
.section-lead { font-size: 1rem; color: var(--gray-500); max-width: 500px; line-height: 1.75; }
.section-lead--light { color: rgba(255,255,255,0.5); }

/* ─── BUTTONS ─────────────────────────────────────────────── */
.btn { display: inline-flex; align-items: center; gap: 0.45rem; padding: 0.8rem 1.8rem; border-radius: var(--radius); font-family: var(--font-body); font-weight: 600; font-size: 0.875rem; cursor: pointer; border: 2px solid transparent; letter-spacing: 0.02em; transition: all var(--transition); white-space: nowrap; }
.btn-primary   { background: var(--copper); color: var(--white); border-color: var(--copper); }
.btn-primary:hover { background: var(--copper-dark); border-color: var(--copper-dark); }
.btn-ghost     { background: rgba(255,255,255,0.08); color: var(--white); border-color: rgba(255,255,255,0.28); }
.btn-ghost:hover { background: rgba(255,255,255,0.15); border-color: rgba(255,255,255,0.55); }
.btn-outline   { background: transparent; color: var(--copper); border-color: var(--copper); }
.btn-outline:hover { background: var(--copper); color: var(--white); }
.btn-dark      { background: var(--ink); color: var(--white); border-color: var(--ink); }
.btn-dark:hover { background: var(--gray-700); border-color: var(--gray-700); }
.btn-white     { background: var(--white); color: var(--copper); border-color: var(--white); }
.btn-white:hover { background: var(--cream); border-color: var(--cream); }

/* ─── NAV ─────────────────────────────────────────────────── */
.nav { position: fixed; top: 0; left: 0; right: 0; z-index: 200; background: var(--white); border-bottom: 1px solid var(--gray-100); display: flex; align-items: center; justify-content: space-between; padding: 0 2.5rem; height: var(--nav-h); transition: box-shadow var(--transition); }
.nav.scrolled { box-shadow: var(--shadow-md); }
.nav-logo { display: flex; align-items: center; gap: 0.65rem; }
.nav-links { display: flex; align-items: center; gap: 0.25rem; }
.nav-links a { font-size: 0.875rem; font-weight: 600; color: var(--gray-500); padding: 0.5rem 0.9rem; border-radius: var(--radius-sm); transition: color var(--transition), background var(--transition); letter-spacing: 0.01em; }
.nav-links a:hover { color: var(--ink); background: var(--cream); }
.nav-links a.active { color: var(--copper); }
.nav-links .nav-cta { background: var(--copper); color: var(--white); padding: 0.5rem 1.25rem; }
.nav-links .nav-cta:hover { background: var(--copper-dark); }
.nav-links .nav-cta.active { color: var(--white); }
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; padding: 6px; z-index: 201; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--ink); border-radius: 2px; transition: transform 0.2s, opacity 0.2s; }
.nav-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(5px,5px); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(5px,-5px); }

/* ─── HERO ─────────────────────────────────────────────────── */
.hero { min-height: 100vh; padding-top: var(--nav-h); background: var(--ink); position: relative; overflow: hidden; display: flex; align-items: center; }
.hero::before { content: ''; position: absolute; inset: 0; background-image: radial-gradient(circle, rgba(255,255,255,0.035) 1px, transparent 1px); background-size: 30px 30px; pointer-events: none; }
.hero-glow { position: absolute; top: -10%; right: -5%; width: 55%; padding-bottom: 55%; border-radius: 50%; background: radial-gradient(circle, rgba(200,107,42,0.22) 0%, transparent 68%); pointer-events: none; }
.hero-inner { position: relative; z-index: 2; width: 100%; max-width: 1100px; margin: 0 auto; padding: 5rem 2.5rem 6rem; display: grid; grid-template-columns: 1fr 0.85fr; gap: 4rem; align-items: center; }
.hero-kicker { display: inline-flex; align-items: center; gap: 0.55rem; background: rgba(255,255,255,0.07); border: 1px solid rgba(255,255,255,0.1); border-radius: 100px; padding: 0.38rem 1rem; font-size: 0.7rem; font-weight: 700; letter-spacing: 0.15em; text-transform: uppercase; color: rgba(255,255,255,0.5); margin-bottom: 1.75rem; }
.hero-kicker-dot { width: 6px; height: 6px; background: var(--copper); border-radius: 50%; flex-shrink: 0; }
.hero-title { font-family: var(--font-display); font-size: clamp(2.4rem, 5.2vw, 3.8rem); font-weight: 700; color: var(--white); line-height: 1.1; letter-spacing: -0.015em; margin-bottom: 1.5rem; }
.hero-title em { font-style: normal; color: var(--copper-light); }
.hero-lead { font-size: 1rem; color: rgba(255,255,255,0.5); max-width: 500px; line-height: 1.78; margin-bottom: 1.15rem; }
.hero-lead--secondary { font-size: 0.92rem; color: rgba(255,255,255,0.4); margin-bottom: 2.25rem; }
.hero-actions { display: flex; gap: 0.75rem; flex-wrap: wrap; }
.hero-mark { display: flex; align-items: center; justify-content: flex-end; }
.hero-mark img { width: 100%; max-width: 380px; filter: invert(1); opacity: 0.12; }
.hero-scroll { position: absolute; bottom: 2.5rem; left: 50%; transform: translateX(-50%); display: flex; flex-direction: column; align-items: center; gap: 0.45rem; color: rgba(255,255,255,0.3); font-size: 0.65rem; font-weight: 600; letter-spacing: 0.16em; text-transform: uppercase; z-index: 2; transition: color var(--transition); }
.hero-scroll:hover { color: rgba(255,255,255,0.6); }
.hero-scroll svg { width: 18px; height: 18px; animation: bounce 2.2s infinite; }
@keyframes bounce { 0%,100%{transform:translateY(0)} 55%{transform:translateY(6px)} }

/* ─── PILLARS BAND ────────────────────────────────────────── */
.pillars-band { background: var(--cream); border-bottom: 1px solid var(--gray-100); }
.pillars { display: grid; grid-template-columns: repeat(3,1fr); }
.pillar { display: flex; align-items: flex-start; gap: 1rem; padding: 2rem 2.5rem; border-right: 1px solid var(--gray-100); }
.pillar:last-child { border-right: none; }
.pillar-icon { width: 42px; height: 42px; background: var(--ink); border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.pillar-icon svg { width: 20px; height: 20px; stroke: var(--copper-light); }
.pillar-body strong { display: block; font-size: 0.9rem; font-weight: 700; color: var(--ink); margin-bottom: 0.2rem; }
.pillar-body span { font-size: 0.82rem; color: var(--gray-500); line-height: 1.5; }

/* ─── SOBRE ───────────────────────────────────────────────── */
.sobre-grid { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 5rem; align-items: center; }
.sobre-text p { color: var(--gray-500); margin-bottom: 1rem; font-size: 0.975rem; line-height: 1.78; }
.sobre-tags { display: flex; flex-wrap: wrap; gap: 0.45rem; margin-top: 1.5rem; }
.sobre-tag { background: var(--cream); border: 1px solid var(--gray-100); border-radius: var(--radius-sm); padding: 0.3rem 0.7rem; font-size: 0.77rem; font-weight: 500; color: var(--gray-700); }
.sobre-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.stat-card { background: var(--white); border: 1px solid var(--gray-100); border-radius: var(--radius); padding: 1.5rem 1.25rem; }
.stat-card:first-child { border-top: 3px solid var(--copper); }
.stat-num { font-family: var(--font-display); font-size: 2.1rem; font-weight: 700; color: var(--ink); line-height: 1; margin-bottom: 0.35rem; letter-spacing: -0.02em; }
.stat-desc { font-size: 0.79rem; color: var(--gray-500); font-weight: 500; line-height: 1.4; }

/* ─── PRODUTOS ────────────────────────────────────────────── */
.produtos-header { display: flex; justify-content: space-between; align-items: flex-end; margin-bottom: 2.75rem; flex-wrap: wrap; gap: 1rem; }
.produtos-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }
.produto-card { background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.09); border-radius: var(--radius); padding: 1.75rem 1.5rem; transition: background var(--transition), border-color var(--transition), transform var(--transition); }
.produto-card:hover { background: rgba(255,255,255,0.07); border-color: rgba(200,107,42,0.4); transform: translateY(-3px); }
.produto-card-icon { width: 44px; height: 44px; border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; margin-bottom: 1.25rem; background: rgba(200,107,42,0.14); }
.produto-card-icon svg { width: 22px; height: 22px; stroke: var(--copper-light); }
.produto-card h3 { font-size: 1rem; font-weight: 700; color: var(--white); margin-bottom: 0.5rem; }
.produto-card p { font-size: 0.83rem; color: rgba(255,255,255,0.5); line-height: 1.6; }
.produto-card-tag { display: inline-block; margin-top: 1rem; font-size: 0.68rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; padding: 0.2rem 0.6rem; border-radius: 3px; background: rgba(200,107,42,0.13); color: var(--copper-light); }

/* ─── CATÁLOGO (home) ─────────────────────────────────────── */
.catalogo-head { max-width: 640px; margin-bottom: 2.5rem; }
.catalogo-sub { color: var(--gray-500); font-size: 0.975rem; line-height: 1.75; }
.catalogo-actions { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }
.catalogo-action { display: flex; flex-direction: column; background: var(--cream); border: 1px solid var(--gray-100); border-radius: var(--radius-lg); padding: 2rem 1.75rem; transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition); }
.catalogo-action:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); border-color: rgba(200,107,42,0.35); }
.catalogo-action-icon { width: 46px; height: 46px; border-radius: var(--radius-sm); background: var(--ink); display: flex; align-items: center; justify-content: center; margin-bottom: 1.1rem; }
.catalogo-action-icon svg { width: 22px; height: 22px; stroke: var(--copper-light); }
.catalogo-action h3 { font-family: var(--font-display); font-size: 1.1rem; font-weight: 700; color: var(--ink); margin-bottom: 0.5rem; }
.catalogo-action p { font-size: 0.85rem; color: var(--gray-500); line-height: 1.6; margin-bottom: 1.4rem; flex-grow: 1; }
.catalogo-action .btn { width: 100%; justify-content: center; }

/* ─── CONTATO ─────────────────────────────────────────────── */
.contato-grid { display: grid; grid-template-columns: 0.9fr 1.3fr; gap: 5rem; align-items: start; }
.contato-info-list { margin-top: 1.75rem; display: flex; flex-direction: column; gap: 1.1rem; }
.contato-item { display: flex; align-items: flex-start; gap: 0.9rem; }
.contato-item-icon { width: 40px; height: 40px; background: var(--ink); border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.contato-item-icon svg { width: 18px; height: 18px; stroke: var(--copper-light); }
.contato-item-body strong { display: block; font-size: 0.68rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--gray-300); margin-bottom: 0.15rem; }
.contato-item-body span, .contato-item-body a { font-size: 0.95rem; font-weight: 500; color: var(--gray-700); transition: color var(--transition); }
.contato-item-body a:hover { color: var(--copper); }
.contato-form { background: var(--white); border: 1px solid var(--gray-100); border-radius: var(--radius-lg); padding: 2.25rem 2rem 2.5rem; box-shadow: var(--shadow-sm); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-group { margin-bottom: 1rem; }
.form-group label { display: block; font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: var(--gray-500); margin-bottom: 0.4rem; }
.form-group input, .form-group textarea, .form-group select { width: 100%; padding: 0.72rem 0.95rem; border: 1.5px solid var(--gray-100); border-radius: var(--radius); font-family: var(--font-body); font-size: 0.9rem; color: var(--ink); background: var(--cream); outline: none; transition: border-color var(--transition), box-shadow var(--transition); }
.form-group input::placeholder, .form-group textarea::placeholder { color: var(--gray-300); }
.form-group input:focus, .form-group textarea:focus, .form-group select:focus { border-color: var(--copper); box-shadow: 0 0 0 3px rgba(200,107,42,0.13); background: var(--white); }
.form-group textarea { height: 120px; resize: vertical; }
.btn-submit { width: 100%; padding: 0.9rem; background: var(--copper); color: var(--white); border: none; border-radius: var(--radius); font-family: var(--font-body); font-size: 0.9rem; font-weight: 700; letter-spacing: 0.03em; cursor: pointer; transition: background var(--transition); margin-top: 0.25rem; }
.btn-submit:hover { background: var(--copper-dark); }
.btn-submit:disabled { opacity: 0.6; cursor: default; }
.form-message { display: none; border-radius: var(--radius); padding: 0.9rem 1.1rem; font-size: 0.875rem; font-weight: 500; text-align: center; margin-top: 0.75rem; }
.form-success { background: #ecfdf5; border: 1px solid #a7f3d0; color: #065f46; }
.form-error   { background: #fef2f2; border: 1px solid #fca5a5; color: #991b1b; }

/* ─── FOOTER ──────────────────────────────────────────────── */
footer { background: var(--ink); padding: 2.25rem 2.5rem; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 1rem; }
.footer-logo { display: flex; align-items: center; gap: 0.6rem; }
.footer-copy { font-size: 0.79rem; color: rgba(255,255,255,0.32); line-height: 1.6; text-align: right; }
.footer-copy strong { color: rgba(255,255,255,0.55); font-weight: 500; }

/* ─── WHATSAPP FLOAT BUTTON ───────────────────────────────── */
.wa-float { position: fixed; right: 22px; bottom: 22px; z-index: 300; width: 58px; height: 58px; border-radius: 50%; background: #25D366; color: #fff; display: flex; align-items: center; justify-content: center; box-shadow: 0 8px 24px rgba(37,211,102,0.45), 0 4px 12px rgba(0,0,0,0.25); transition: transform var(--transition), box-shadow var(--transition); }
.wa-float svg { width: 32px; height: 32px; position: relative; z-index: 1; }
.wa-float:hover { transform: scale(1.08); box-shadow: 0 10px 30px rgba(37,211,102,0.55), 0 6px 16px rgba(0,0,0,0.3); }
.wa-float::before { content: ''; position: absolute; inset: 0; border-radius: 50%; background: #25D366; z-index: 0; animation: wa-pulse 2.4s ease-out infinite; }
@keyframes wa-pulse { 0% { transform: scale(1); opacity: 0.55; } 70% { transform: scale(1.7); opacity: 0; } 100% { opacity: 0; } }
@media (max-width: 640px) { .wa-float { right: 16px; bottom: 16px; width: 52px; height: 52px; } .wa-float svg { width: 28px; height: 28px; } }
@media (prefers-reduced-motion: reduce) { .wa-float::before { animation: none; } }

/* ============================================================
   CATÁLOGO PAGE  |  catalogo.html
   ============================================================ */
.cat-header { background: var(--ink); background-image: radial-gradient(circle, rgba(255,255,255,0.035) 1px, transparent 1px); background-size: 28px 28px; position: relative; overflow: hidden; }
.cat-header::before { content: ''; position: absolute; inset: 0; background: radial-gradient(ellipse 70% 60% at 72% 50%, rgba(200,107,42,0.24) 0%, transparent 70%); pointer-events: none; }
.cat-header-inner { position: relative; z-index: 1; max-width: 1100px; margin: 0 auto; padding: 2.25rem 2.5rem 2rem; display: flex; align-items: center; justify-content: space-between; gap: 2rem; }
.cat-header-left { display: flex; align-items: center; gap: 1.5rem; }
.cat-header-logo img { height: 72px; filter: invert(1); }
.cat-eyebrow { font-size: 0.65rem; font-weight: 700; letter-spacing: 0.2em; text-transform: uppercase; color: var(--copper-light); margin-bottom: 0.35rem; }
.cat-title { font-family: var(--font-display); font-size: clamp(1.4rem, 3vw, 2rem); font-weight: 700; color: var(--white); letter-spacing: -0.01em; line-height: 1.1; }
.cat-title em { font-style: normal; color: var(--copper-light); }
.cat-sub { font-size: 0.85rem; color: rgba(255,255,255,0.5); margin-top: 0.4rem; }
.cat-header-stats { display: flex; gap: 2rem; flex-shrink: 0; }
.cat-stat-num { font-family: var(--font-display); font-size: 1.6rem; font-weight: 700; color: var(--white); line-height: 1; }
.cat-stat-desc { font-size: 0.62rem; font-weight: 700; color: rgba(255,255,255,0.4); text-transform: uppercase; letter-spacing: 0.1em; margin-top: 3px; }

.cat-nav { background: var(--white); border-bottom: 1px solid var(--gray-100); position: sticky; top: 0; z-index: 100; box-shadow: 0 2px 8px rgba(0,0,0,0.06); }
.cat-nav-inner { max-width: 1100px; margin: 0 auto; padding: 0 2.5rem; display: flex; align-items: center; overflow-x: auto; scrollbar-width: none; }
.cat-nav-inner::-webkit-scrollbar { display: none; }
.cat-tab { flex-shrink: 0; padding: 0.9rem 1.1rem; font-size: 0.8rem; font-weight: 600; letter-spacing: 0.03em; color: var(--gray-500); cursor: pointer; border: none; background: none; font-family: var(--font-body); border-bottom: 2.5px solid transparent; transition: color var(--transition), border-color var(--transition); white-space: nowrap; }
.cat-tab:hover { color: var(--ink); }
.cat-tab.active { color: var(--copper); border-bottom-color: var(--copper); }
.cat-tab-back { color: var(--gray-500); border-right: 1px solid var(--gray-100); margin-right: 0.25rem; padding-right: 1.25rem; display: flex; align-items: center; gap: 0.4rem; text-decoration: none; font-size: 0.8rem; font-weight: 600; }
.cat-tab-back:hover { color: var(--copper); }
.cat-tab-pdf { margin-left: auto; color: var(--copper); font-weight: 700; border-left: 1px solid var(--gray-100); padding-left: 1.25rem; font-size: 0.8rem; text-decoration: none; display: flex; align-items: center; gap: 0.35rem; flex-shrink: 0; }
.cat-tab-pdf:hover { color: var(--copper-dark); }

.cat-main { max-width: 1100px; margin: 0 auto; padding: 2.5rem 2.5rem 5rem; }
.cat-search-wrap { margin-bottom: 2rem; display: flex; gap: 0.75rem; align-items: center; flex-wrap: wrap; }
.cat-search-input { flex: 1; max-width: 380px; padding: 0.7rem 1rem 0.7rem 2.6rem; border: 1.5px solid var(--gray-100); border-radius: var(--radius); font-family: var(--font-body); font-size: 0.875rem; color: var(--ink); background: var(--cream); background-image: url("data:image/svg+xml,%3Csvg width='15' height='15' viewBox='0 0 24 24' fill='none' stroke='%23C0BAB3' stroke-width='2' xmlns='http://www.w3.org/2000/svg'%3E%3Ccircle cx='11' cy='11' r='8'/%3E%3Cpath d='m21 21-4.35-4.35'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: 0.8rem center; background-size: 15px; outline: none; transition: border-color var(--transition), box-shadow var(--transition); }
.cat-search-input:focus { border-color: var(--copper); box-shadow: 0 0 0 3px rgba(200,107,42,0.13); background-color: var(--white); }
.cat-search-count { font-size: 0.8rem; color: var(--gray-500); }

.cat-section { margin-bottom: 3rem; display: none; }
.cat-section.visible { display: block; }
.cat-section-header { display: flex; align-items: center; gap: 1rem; margin-bottom: 1.25rem; padding-bottom: 0.75rem; border-bottom: 2px solid var(--gray-100); }
.cat-section-title { font-size: 0.9rem; font-weight: 800; color: var(--ink); letter-spacing: -0.01em; }
.cat-section-count { font-size: 0.7rem; font-weight: 600; color: var(--gray-500); background: var(--gray-100); border-radius: 100px; padding: 0.15rem 0.55rem; }
.cat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(175px,1fr)); gap: 10px; }
.cat-card { background: var(--white); border: 1px solid var(--gray-100); border-radius: var(--radius); padding: 1rem 1rem 0.9rem; display: flex; flex-direction: column; gap: 4px; transition: box-shadow var(--transition), transform var(--transition); }
.cat-card:hover { box-shadow: 0 6px 24px rgba(0,0,0,0.09); transform: translateY(-2px); }
.cat-card[data-hidden] { display: none; }
.cat-card-code { font-size: 0.66rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; }
.cat-card-name { font-size: 0.82rem; font-weight: 600; color: var(--ink); line-height: 1.35; }
.cat-card-compat { font-size: 0.72rem; color: var(--gray-500); line-height: 1.4; margin-top: 2px; }
/* Category accents — família metálica/terrosa */
.cat-card[data-cat="fixacao"]     { border-top: 2.5px solid var(--c-fixacao); }
.cat-card[data-cat="fixacao"]     .cat-card-code { color: var(--c-fixacao); }
.cat-card[data-cat="arruela"]     { border-top: 2.5px solid var(--c-arruela); }
.cat-card[data-cat="arruela"]     .cat-card-code { color: var(--c-arruela); }
.cat-card[data-cat="rebite"]      { border-top: 2.5px solid var(--c-rebite); }
.cat-card[data-cat="rebite"]      .cat-card-code { color: var(--c-rebite); }
.cat-card[data-cat="abracadeira"] { border-top: 2.5px solid var(--c-abracadeira); }
.cat-card[data-cat="abracadeira"] .cat-card-code { color: var(--c-abracadeira); }
.cat-card[data-cat="eletrica"]    { border-top: 2.5px solid var(--c-eletrica); }
.cat-card[data-cat="eletrica"]    .cat-card-code { color: var(--c-eletrica); }
.cat-card[data-cat="mangueira"]   { border-top: 2.5px solid var(--c-mangueira); }
.cat-card[data-cat="mangueira"]   .cat-card-code { color: var(--c-mangueira); }
.cat-card[data-cat="quimica"]     { border-top: 2.5px solid var(--c-quimica); }
.cat-card[data-cat="quimica"]     .cat-card-code { color: var(--c-quimica); }
.cat-card[data-cat="diversos"]    { border-top: 2.5px solid var(--c-diversos); }
.cat-card[data-cat="diversos"]    .cat-card-code { color: var(--c-diversos); }
.cat-card[data-cat="grampo"]      { border-top: 2.5px solid var(--c-grampo); }
.cat-card[data-cat="grampo"]      .cat-card-code { color: var(--c-grampo); }

.cat-legend { display: flex; flex-wrap: wrap; gap: 0.6rem 1.1rem; margin-bottom: 2rem; }
.cat-legend-item { display: flex; align-items: center; gap: 6px; font-size: 0.74rem; font-weight: 600; color: var(--gray-500); }
.cat-legend-dot { width: 10px; height: 10px; border-radius: 2px; flex-shrink: 0; }
.cat-no-results { display: none; font-size: 0.9rem; color: var(--gray-500); padding: 3rem 0; text-align: center; }
.cat-no-results.visible { display: block; }

.cat-footer { background: var(--ink); padding: 1.75rem 2.5rem; display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.cat-footer-logo { display: flex; align-items: center; gap: 0.6rem; }
.cat-footer p { font-size: 0.78rem; color: rgba(255,255,255,0.32); }

/* ─── RESPONSIVE ──────────────────────────────────────────── */
@media (max-width: 900px) {
  .sobre-grid,
  .contato-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .produtos-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
  .catalogo-actions { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .nav { padding: 0 1.25rem; }
  .nav-links { display: none; }
  .nav-links.open { display: flex; flex-direction: column; position: fixed; inset: 0; background: var(--ink); align-items: center; justify-content: center; gap: 2rem; z-index: 199; }
  .nav-links.open a { font-size: 1.2rem; color: var(--white) !important; background: none !important; }
  .nav-links.open .nav-cta { background: var(--copper) !important; border-radius: var(--radius); padding: 0.6rem 1.5rem !important; }
  .nav-toggle { display: flex; }
  .brand-word small { display: none; }
  .hero-inner { grid-template-columns: 1fr; gap: 0; padding-bottom: 8rem; }
  .hero-mark { display: none; }
  .hero-lead { max-width: 100%; }
  .section { padding: 4rem 1.25rem; }
  .pillars { grid-template-columns: 1fr; }
  .pillar { border-right: none; border-bottom: 1px solid var(--gray-100); }
  .pillar:last-child { border-bottom: none; }
  .sobre-stats { grid-template-columns: 1fr 1fr; }
  .container { padding: 0 1.25rem; }
  .produtos-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.7rem; }
  .produto-card { padding: 1.1rem 0.9rem; }
  .produto-card p { display: none; }
  .produto-card-icon { width: 36px; height: 36px; margin-bottom: 0.85rem; }
  .produto-card-icon svg { width: 19px; height: 19px; }
  .produto-card h3 { font-size: 0.9rem; margin-bottom: 0; }
  .produto-card-tag { margin-top: 0.7rem; }
  .produtos-header { margin-bottom: 1.75rem; }
  .form-row { grid-template-columns: 1fr; }
  footer { flex-direction: column; align-items: center; text-align: center; padding: 2rem 1.25rem; }
  .footer-copy { text-align: center; }
  .cat-header-inner { flex-direction: column; align-items: flex-start; }
  .cat-header-left { flex-direction: column; align-items: flex-start; gap: 1rem; }
  .cat-header-stats { gap: 1.25rem; }
  .cat-main { padding: 2rem 1.25rem 4rem; }
  .cat-nav-inner { padding: 0 1.25rem; }
  .cat-grid { grid-template-columns: repeat(auto-fill, minmax(140px,1fr)); }
  .cat-footer { flex-direction: column; align-items: flex-start; padding: 1.5rem 1.25rem; }
}
@media (max-width: 400px) {
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; justify-content: center; }
}