/* =========================================================
   SilvaLamas — Design tokens
   Conceito: "planta técnica" (blueprint) de obra — do risco
   à remodelação feita. Azul-planta profundo, papel vegetal
   quente, latão como cor de decisão (CTAs), tijolo como
   cor de estado/alerta.
   ========================================================= */
:root{
  --ink:        #14263A; /* azul-planta profundo (texto, fundo hero) */
  --ink-2:      #1E3450; /* superfície escura secundária */
  --paper:      #EFEAE1; /* papel vegetal / fundo claro */
  --paper-2:    #E4DDCF; /* painel sobre paper */
  --line:       #7C93A8; /* linha de grelha / cota */
  --line-soft:  rgba(124,147,168,.35);
  --brass:      #B98A32; /* decisão / CTA */
  --brass-dark: #8F6A22;
  --brick:      #A64B2A; /* estado / alerta / admin */
  --ok:         #3E7A4F;

  --font-display: "Big Shoulders Display", "Archivo Black", sans-serif;
  --font-body: "Inter", "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", "Courier New", monospace;

  --radius: 4px;
  --maxw: 1180px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-body);
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
img,svg{max-width:100%;display:block;}
a{color:inherit;}
h1,h2,h3{
  font-family:var(--font-display);
  font-weight:700;
  text-transform:uppercase;
  letter-spacing:.01em;
  line-height:1.02;
  margin:0 0 .4em;
}
h1{font-size:clamp(2.6rem,6vw,5.2rem);}
h2{font-size:clamp(1.8rem,3.4vw,2.6rem);}
p{margin:0 0 1em;}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px;}

/* dimension-tag: rótulo estilo cota de desenho técnico */
.dim-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--brass);
}
.dim-tag::before{content:"";width:22px;height:1px;background:var(--brass);}

/* ---------- Nav ---------- */
.site-nav{
  position:sticky;top:0;z-index:50;
  background:var(--ink);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.site-nav .container{
  display:flex;align-items:center;justify-content:space-between;
  height:72px;
}
.brand{
  font-family:var(--font-display);
  font-size:1.5rem;color:var(--paper);
  text-decoration:none;letter-spacing:.03em;
  display:flex;align-items:baseline;gap:8px;
}
.brand small{
  font-family:var(--font-mono);font-size:.6rem;color:var(--brass);
  letter-spacing:.1em;text-transform:uppercase;font-weight:400;
}
.nav-links{display:flex;align-items:center;gap:28px;list-style:none;margin:0;padding:0;}
.nav-links a{
  color:var(--paper);text-decoration:none;font-size:.86rem;
  text-transform:uppercase;letter-spacing:.08em;font-weight:600;
  padding:6px 0;border-bottom:2px solid transparent;transition:border-color .15s;
}
.nav-links a:hover{border-color:var(--brass);}
.nav-links a.btn-ghost{
  border:1px solid rgba(255,255,255,.3);border-radius:var(--radius);
  padding:8px 16px;
}
.nav-links a.btn-admin{
  background:var(--brick);color:#fff;border-radius:var(--radius);
  padding:8px 16px;border-bottom:none;
}
.nav-toggle{display:none;}

/* ---------- Buttons / forms ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--brass);color:var(--ink);
  font-family:var(--font-body);font-weight:700;
  text-transform:uppercase;letter-spacing:.06em;font-size:.82rem;
  padding:14px 28px;border:none;border-radius:var(--radius);
  cursor:pointer;text-decoration:none;transition:background .15s,transform .1s;
}
.btn:hover{background:var(--brass-dark);}
.btn:active{transform:translateY(1px);}
.btn-outline{
  background:transparent;border:1.5px solid var(--ink);color:var(--ink);
}
.btn-outline:hover{background:var(--ink);color:var(--paper);}
.btn-block{width:100%;}

.field{margin-bottom:18px;}
.field label{
  display:block;font-family:var(--font-mono);font-size:.7rem;
  text-transform:uppercase;letter-spacing:.1em;color:var(--ink-2);
  margin-bottom:6px;
}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border:1.5px solid var(--line-soft);
  border-radius:var(--radius);background:#fff;color:var(--ink);
  font-family:var(--font-body);font-size:.95rem;
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:2px solid var(--brass);outline-offset:1px;border-color:var(--brass);
}
.field textarea{resize:vertical;min-height:110px;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 18px;}
.form-grid .field-full{grid-column:1/-1;}
@media (max-width:640px){.form-grid{grid-template-columns:1fr;}}

.form-msg{
  font-family:var(--font-mono);font-size:.82rem;padding:12px 14px;
  border-radius:var(--radius);margin-top:14px;display:none;
}
.form-msg.ok{display:block;background:rgba(62,122,79,.12);color:var(--ok);border:1px solid var(--ok);}
.form-msg.err{display:block;background:rgba(166,75,42,.1);color:var(--brick);border:1px solid var(--brick);}

/* ---------- Hero ---------- */
.hero{
  background:var(--ink);color:var(--paper);position:relative;overflow:hidden;
  padding:88px 0 70px;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(var(--line-soft) 1px,transparent 1px),
    linear-gradient(90deg,var(--line-soft) 1px,transparent 1px);
  background-size:44px 44px;opacity:.18;pointer-events:none;
}
.hero .container{position:relative;display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;}
@media (max-width:900px){.hero .container{grid-template-columns:1fr;}}
.hero p.lede{color:var(--line);max-width:46ch;font-size:1.05rem;}
.hero-cta{display:flex;gap:14px;margin-top:28px;flex-wrap:wrap;}
.hero-blueprint{stroke:var(--brass);}
.hero-blueprint .draw{
  stroke-dasharray:1400;stroke-dashoffset:1400;
  animation:draw 2.4s ease forwards;
}
.hero-blueprint .draw2{
  stroke-dasharray:600;stroke-dashoffset:600;
  animation:draw 1.8s .4s ease forwards;
}
@keyframes draw{to{stroke-dashoffset:0;}}
@media (prefers-reduced-motion:reduce){
  .hero-blueprint .draw,.hero-blueprint .draw2{animation:none;stroke-dashoffset:0;}
}

/* ---------- Sections ---------- */
section{padding:76px 0;}
.section-head{max-width:60ch;margin-bottom:44px;}
.section-alt{background:var(--paper-2);}

/* Pedir orçamento */
.dept-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:6px;}
@media (max-width:640px){.dept-grid{grid-template-columns:repeat(2,1fr);}}
.dept-opt{position:relative;}
.dept-opt input{position:absolute;opacity:0;inset:0;cursor:pointer;}
.dept-opt span{
  display:flex;flex-direction:column;gap:2px;
  border:1.5px solid var(--line-soft);border-radius:var(--radius);
  padding:12px 14px;font-size:.85rem;cursor:pointer;background:#fff;
  transition:border-color .15s,background .15s;
}
.dept-opt span small{font-family:var(--font-mono);color:var(--line);font-size:.65rem;text-transform:uppercase;}
.dept-opt input:checked + span{border-color:var(--brass);background:rgba(185,138,50,.08);}
.dept-opt input:focus-visible + span{outline:2px solid var(--brass);outline-offset:2px;}

.orc-wrap{display:grid;grid-template-columns:1fr 1fr;gap:56px;}
@media (max-width:900px){.orc-wrap{grid-template-columns:1fr;}}
.orc-panel{
  background:var(--ink);color:var(--paper);border-radius:var(--radius);
  padding:32px;font-family:var(--font-mono);font-size:.85rem;
}
.orc-panel h3{color:var(--paper);}
.orc-panel ul{list-style:none;padding:0;margin:0;}
.orc-panel li{
  display:flex;justify-content:space-between;gap:12px;
  padding:12px 0;border-bottom:1px solid rgba(255,255,255,.12);
}
.orc-panel li span:first-child{color:var(--line);}

/* Contactos */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
@media (max-width:640px){.contact-grid{grid-template-columns:1fr;}}
.contact-card{
  background:#fff;border:1.5px solid var(--line-soft);border-radius:var(--radius);
  padding:26px;
}
.contact-card .dim-tag{margin-bottom:10px;}
.contact-card a{
  font-family:var(--font-display);font-size:1.6rem;text-decoration:none;
  color:var(--ink);display:block;
}

/* Card genérico (marcar visita, login/registo) */
.card{
  background:#fff;border:1.5px solid var(--line-soft);border-radius:var(--radius);
  padding:36px;max-width:640px;
}
.auth-card{max-width:440px;margin:0 auto;}

/* Footer */
footer{background:var(--ink);color:var(--line);padding:36px 0;font-size:.82rem;}
footer .container{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;}

/* ---------- Auth pages ---------- */
.auth-shell{
  min-height:calc(100vh - 72px);display:flex;align-items:center;justify-content:center;
  padding:60px 20px;background:var(--paper);
}
.auth-head{text-align:center;margin-bottom:26px;}
.auth-switch{text-align:center;margin-top:18px;font-size:.88rem;color:var(--ink-2);}
.auth-switch a{color:var(--brass-dark);font-weight:700;text-decoration:none;}

/* ---------- Admin ---------- */
.admin-shell{padding:40px 0 80px;}
.admin-head{display:flex;justify-content:space-between;align-items:flex-end;flex-wrap:wrap;gap:16px;margin-bottom:32px;}
.admin-tabs{display:flex;gap:10px;margin-bottom:26px;border-bottom:1.5px solid var(--line-soft);}
.admin-tab-btn{
  background:none;border:none;padding:12px 6px;font-family:var(--font-mono);
  font-size:.78rem;text-transform:uppercase;letter-spacing:.08em;color:var(--line);
  cursor:pointer;border-bottom:2px solid transparent;margin-bottom:-1.5px;
}
.admin-tab-btn.active{color:var(--ink);border-color:var(--brass);}
.admin-panel{display:none;}
.admin-panel.active{display:block;}
.data-table{width:100%;border-collapse:collapse;background:#fff;font-size:.88rem;}
.data-table th{
  text-align:left;font-family:var(--font-mono);font-size:.68rem;text-transform:uppercase;
  letter-spacing:.08em;color:var(--line);border-bottom:1.5px solid var(--ink);
  padding:10px 12px;
}
.data-table td{padding:12px;border-bottom:1px solid var(--line-soft);vertical-align:top;}
.data-table tr:hover td{background:var(--paper-2);}
.tag-dept{
  font-family:var(--font-mono);font-size:.68rem;text-transform:uppercase;
  background:var(--paper-2);border:1px solid var(--line-soft);border-radius:3px;
  padding:2px 8px;display:inline-block;
}
.empty-state{
  padding:40px;text-align:center;color:var(--line);font-family:var(--font-mono);
  font-size:.85rem;border:1.5px dashed var(--line-soft);border-radius:var(--radius);
}
.admin-badge{
  font-family:var(--font-mono);font-size:.7rem;background:var(--brick);color:#fff;
  padding:4px 10px;border-radius:3px;text-transform:uppercase;letter-spacing:.08em;
}

@media (max-width:840px){
  .nav-links{
    position:fixed;inset:72px 0 0 0;background:var(--ink);flex-direction:column;
    align-items:flex-start;padding:24px;gap:18px;transform:translateX(100%);
    transition:transform .25s;overflow-y:auto;
  }
  .nav-links.open{transform:translateX(0);}
  .nav-toggle{
    display:block;background:none;border:none;color:var(--paper);font-size:1.6rem;cursor:pointer;
  }
}