/* ============================================================
   entulho-braga.pt — Shared Stylesheet
   Inclui: reset, variáveis, nav, footer, FAQ accordion,
   layout de artigo, sidebar, keyframes, responsive nav
   ============================================================ */

/* RESET */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

/* VARIÁVEIS */
:root{
  --bg:#FFFFFF;
  --bg2:#F8F9FB;
  --bg3:#EFF2F6;
  --accent:#2D9B6F;
  --accent2:#34D399;
  --teal:#0D9488;
  --text:#0F172A;
  --muted:#64748B;
  --border:rgba(0,0,0,0.08);
}

/* BASE */
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',system-ui,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;overflow-x:hidden}

/* ── NAV ── */
nav{position:fixed;top:0;left:0;right:0;z-index:200;display:flex;align-items:center;justify-content:space-between;padding:16px 48px;background:rgba(255,255,255,0.92);backdrop-filter:blur(16px);border-bottom:1px solid var(--border)}
.logo{font-size:17px;font-weight:900;letter-spacing:-0.5px;color:var(--text);white-space:nowrap;margin-right:auto;text-decoration:none}
.logo b{color:var(--accent)}
.nav-links{display:flex;align-items:center;gap:12px;flex-shrink:0}
.nav-phone{font-weight:700;font-size:14px;color:var(--text);text-decoration:none;white-space:nowrap}
.nav-wa{display:inline-flex;align-items:center;gap:5px;font-weight:700;font-size:14px;color:#25D366;text-decoration:none;white-space:nowrap}
.nav-cta{background:var(--accent);color:#fff;font-weight:800;font-size:14px;padding:10px 22px;border-radius:6px;text-decoration:none;white-space:nowrap}

/* ── FOOTER ── */
footer{border-top:1px solid #E2E8F0;padding:56px 48px 40px;text-align:center;background:#FFFFFF}
.footer-big{font-size:clamp(22px,3vw,36px);font-weight:900;letter-spacing:-1px;margin-bottom:8px;line-height:1.1}
.footer-big em{color:var(--accent);font-style:normal}
.footer-zones{font-size:13px;color:var(--muted);margin:16px 0 24px}
footer small{font-size:12px;color:#94A3B8}

/* ── FAQ ACCORDION (partilhado homepage + artigos) ── */
.faq-list{display:flex;flex-direction:column;gap:2px}
details{background:var(--bg2);overflow:hidden;transition:background .2s}
details:first-child{border-radius:10px 10px 0 0}
details:last-child{border-radius:0 0 10px 10px}
details[open]{background:var(--bg3)}
summary{font-weight:700;font-size:15px;cursor:pointer;list-style:none;padding:20px 24px;display:flex;justify-content:space-between;align-items:center;gap:16px;user-select:none}
summary::-webkit-details-marker{display:none}
.sum-icon{width:28px;height:28px;border-radius:50%;border:1.5px solid rgba(0,0,0,0.12);display:flex;align-items:center;justify-content:center;font-size:16px;flex-shrink:0;transition:border-color .2s,transform .2s}
details[open] .sum-icon{border-color:var(--accent);transform:rotate(45deg)}
details p{padding:0 24px 20px;font-size:14px;color:var(--muted);line-height:1.75}

/* ── LAYOUT ARTIGO (partilhado entre todos os artigos) ── */
.page{padding-top:65px}

.breadcrumb-bar{background:var(--bg2);border-bottom:1px solid var(--border);padding:12px 48px;font-size:12px;color:var(--muted);display:flex;gap:6px;align-items:center}
.breadcrumb-bar a{color:var(--muted);text-decoration:none}
.breadcrumb-bar a:hover{color:var(--accent)}
.breadcrumb-bar span{color:#CBD5E1}

.article-header{padding:56px 48px 52px;border-bottom:1px solid var(--border)}
.article-eyebrow{font-size:11px;font-weight:700;letter-spacing:0.18em;text-transform:uppercase;color:var(--accent);margin-bottom:16px}
.article-header h1{font-size:clamp(28px,4vw,52px);font-weight:900;letter-spacing:-2px;line-height:1.06;margin-bottom:20px;max-width:800px}
.article-meta{font-size:13px;color:var(--muted);display:flex;gap:20px;flex-wrap:wrap}

.content-grid{display:grid;grid-template-columns:1fr 340px;gap:0;max-width:1280px;margin:0 auto;align-items:start}

.article-body{padding:52px 56px 80px 48px;border-right:1px solid var(--border)}
.answer-box{background:rgba(45,155,111,0.06);border:1px solid rgba(45,155,111,0.2);border-left:4px solid var(--accent);border-radius:8px;padding:22px 26px;margin-bottom:44px}
.answer-box p{font-size:16px;line-height:1.7}
.article-body h2{font-size:24px;font-weight:900;letter-spacing:-0.4px;margin:48px 0 14px;padding-top:48px;border-top:1px solid var(--border)}
.article-body h2:first-of-type{margin-top:0;padding-top:0;border-top:none}
.article-body h3{font-size:17px;font-weight:800;margin:28px 0 8px}
.article-body p{font-size:16px;color:#334155;line-height:1.8;margin-bottom:18px}
.article-body ul{margin:0 0 18px 0;padding-left:20px}
.article-body ul li{font-size:16px;color:#334155;line-height:1.8;margin-bottom:6px}

.sidebar{padding:40px 32px;position:sticky;top:80px;align-self:start}
.sidebar-cta{background:var(--accent);border-radius:14px;padding:28px;margin-bottom:24px;text-align:center}
.sidebar-cta h3{font-size:18px;font-weight:900;color:#fff;letter-spacing:-0.3px;margin-bottom:8px}
.sidebar-cta p{font-size:13px;color:rgba(255,255,255,0.8);margin-bottom:20px;line-height:1.55}
.btn-white{display:block;background:#fff;color:var(--accent);font-weight:800;font-size:14px;padding:13px 20px;border-radius:8px;text-decoration:none;margin-bottom:10px;text-align:center;transition:transform .15s,box-shadow .15s}
.btn-white:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(0,0,0,0.12)}
.btn-wa{display:flex;align-items:center;justify-content:center;gap:7px;background:rgba(255,255,255,0.15);color:#fff;font-weight:700;font-size:14px;padding:12px 20px;border-radius:8px;text-decoration:none;border:1.5px solid rgba(255,255,255,0.3);transition:background .15s}
.btn-wa:hover{background:rgba(255,255,255,0.25)}

.sidebar-related{background:var(--bg2);border:1px solid var(--border);border-radius:14px;padding:22px}
.sidebar-related h4{font-size:12px;font-weight:700;letter-spacing:0.06em;text-transform:uppercase;color:var(--muted);margin-bottom:16px}
.related-item{display:flex;gap:12px;align-items:flex-start;padding:12px 0;border-bottom:1px solid var(--border);text-decoration:none;color:var(--text)}
.related-item:last-child{border-bottom:none;padding-bottom:0}
.related-item:first-of-type{padding-top:0}
.ri-icon{width:36px;height:36px;border-radius:8px;background:var(--bg3);display:flex;align-items:center;justify-content:center;font-size:16px;flex-shrink:0}
.ri-text{font-size:13px;font-weight:700;line-height:1.4;color:var(--text)}
.ri-text:hover{color:var(--accent)}

/* ── KEYFRAMES ── */
@keyframes fadeUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@keyframes svgSpin{to{transform:rotate(360deg)}}
@keyframes shieldPulse{0%,100%{filter:drop-shadow(0 0 0 transparent)}50%{filter:drop-shadow(0 0 10px rgba(99,102,241,0.5))}}
@keyframes ctaPulse{0%,100%{box-shadow:0 0 0 0 rgba(45,155,111,0.4)}50%{box-shadow:0 0 0 6px rgba(45,155,111,0)}}
@keyframes pingAnim{0%,100%{transform:scale(1)}50%{transform:scale(1.1)}}
@keyframes pingRing{0%{opacity:1;transform:scale(1)}100%{opacity:0;transform:scale(2.5)}}
@keyframes spinSlow{to{transform:rotate(360deg)}}

/* ── RESPONSIVE ── */
@media(max-width:900px){
  nav{padding:14px 24px}
  footer{padding:48px 24px 32px}
  /* artigos */
  .breadcrumb-bar{padding:10px 20px}
  .article-header{padding:40px 20px 36px}
  .content-grid{grid-template-columns:1fr}
  .article-body{padding:40px 20px 60px;border-right:none}
  .sidebar{position:static;padding:0 20px 60px}
}
@media(max-width:640px){
  nav{padding:12px 16px}
  .nav-link-text{display:none}
  .nav-cta{padding:9px 16px;font-size:13px}
  summary{padding:16px 16px;font-size:14px}
  details p{padding:0 16px 16px;font-size:13px}
  footer{padding:48px 16px 32px}
  .footer-zones{font-size:12px}
}
@media(max-width:400px){
  .nav-cta{padding:8px 12px;font-size:12px}
}