/* =========================================================
   Certificate Energetice România — stylesheet comun
   Paletă: scala claselor energetice (verde A → roșu G)
   ========================================================= */

:root{
  --ink:#10241b;          /* verde închis aproape negru */
  --ink-soft:#33514a;
  --paper:#f6f7f2;        /* off-white ușor verzui */
  --paper-2:#eef1e8;
  --line:#d8ddcc;

  --A:#1d8f4e;            /* clasa A */
  --A-deep:#0f5e32;
  --B:#7cb342;
  --C:#c0ca33;
  --D:#fdd835;
  --E:#fb8c00;
  --F:#f4511e;
  --G:#d32f2f;

  --accent:var(--A);
  --accent-deep:var(--A-deep);

  --maxw:1180px;
  --r:14px;
  --r-sm:8px;
  --shadow:0 1px 2px rgba(16,36,27,.05), 0 12px 30px -18px rgba(16,36,27,.35);

  --f-display:"Space Grotesk","Segoe UI",system-ui,sans-serif;
  --f-body:"Inter",system-ui,-apple-system,sans-serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--f-body);
  color:var(--ink);
  background:var(--paper);
  line-height:1.65;
  font-size:17px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--accent-deep);text-decoration:none}
a:hover{text-decoration:underline}

h1,h2,h3,h4{font-family:var(--f-display);line-height:1.12;letter-spacing:-.02em;margin:0 0 .5em;font-weight:600}
h1{font-size:clamp(2.1rem,5.2vw,3.6rem)}
h2{font-size:clamp(1.7rem,3.6vw,2.5rem)}
h3{font-size:1.32rem}
p{margin:0 0 1.1em}
.lead{font-size:1.18rem;color:var(--ink-soft)}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}
.section{padding:84px 0}
.section--tight{padding:56px 0}
.center{text-align:center}
.eyebrow{
  font-family:var(--f-display);
  text-transform:uppercase;
  letter-spacing:.18em;
  font-size:.74rem;
  font-weight:600;
  color:var(--accent-deep);
  margin:0 0 14px;
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:9px;
  font-family:var(--f-display);font-weight:600;font-size:1rem;
  padding:14px 26px;border-radius:var(--r-sm);
  border:1.5px solid transparent;cursor:pointer;transition:.18s;
  text-decoration:none;
}
.btn--primary{background:var(--accent);color:#fff}
.btn--primary:hover{background:var(--accent-deep);text-decoration:none}
.btn--ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn--ghost:hover{background:var(--ink);color:#fff;text-decoration:none}
.btn--lg{padding:17px 34px;font-size:1.07rem}

/* ---------- Header ---------- */
.site-head{
  position:sticky;top:0;z-index:50;
  background:rgba(246,247,242,.86);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;align-items:center;gap:11px;font-family:var(--f-display);font-weight:700;font-size:1.12rem;letter-spacing:-.02em;color:var(--ink)}
.brand:hover{text-decoration:none}
.brand .mark{
  width:34px;height:34px;border-radius:8px;flex:none;
  background:linear-gradient(135deg,var(--A) 0%,var(--C) 55%,var(--E) 100%);
  display:grid;place-items:center;color:#fff;font-weight:700;font-size:.95rem;
}
.nav-links{display:flex;gap:6px;align-items:center;list-style:none;margin:0;padding:0}
.nav-links a{
  font-family:var(--f-display);font-weight:500;font-size:.97rem;color:var(--ink);
  padding:9px 14px;border-radius:7px;
}
.nav-links a:hover{background:var(--paper-2);text-decoration:none}
.nav-links a.active{color:var(--accent-deep)}
.nav-cta{margin-left:8px}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;padding:8px}
.nav-toggle span{display:block;width:24px;height:2px;background:var(--ink);margin:5px 0;transition:.2s}

@media(max-width:880px){
  .nav-toggle{display:block}
  .nav-links{
    position:absolute;top:72px;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:0;
    background:var(--paper);border-bottom:1px solid var(--line);
    padding:10px 22px 22px;display:none;
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:13px 8px;border-bottom:1px solid var(--line)}
  .nav-cta{margin:14px 0 0}
}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--ink);color:var(--paper)}
.hero::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(900px 500px at 78% -10%, rgba(29,143,78,.42), transparent 60%),
    radial-gradient(700px 500px at 10% 110%, rgba(192,202,51,.18), transparent 55%);
}
.hero .wrap{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:50px;align-items:center;padding-top:78px;padding-bottom:78px}
.hero h1{color:#fff}
.hero .lead{color:rgba(246,247,242,.82)}
.hero .eyebrow{color:#9fe3b8}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px}
.hero .btn--ghost{border-color:rgba(246,247,242,.5);color:#fff}
.hero .btn--ghost:hover{background:#fff;color:var(--ink)}
.hero-note{margin-top:22px;font-size:.92rem;color:rgba(246,247,242,.6)}

/* Energy scale graphic */
.escale{display:flex;flex-direction:column;gap:7px;background:rgba(255,255,255,.05);padding:22px;border-radius:var(--r);border:1px solid rgba(255,255,255,.12)}
.escale-title{font-family:var(--f-display);font-size:.82rem;text-transform:uppercase;letter-spacing:.14em;color:rgba(255,255,255,.6);margin-bottom:4px}
.eband{display:flex;align-items:center;color:#10241b;font-family:var(--f-display);font-weight:700;border-radius:6px;height:34px;padding:0 14px;font-size:.95rem;position:relative}
.eband span{margin-left:auto;font-size:.8rem;font-weight:500;opacity:.7}
.eband.is-target{outline:2px solid #fff;outline-offset:2px}
@media(max-width:880px){.hero .wrap{grid-template-columns:1fr;gap:34px}}

/* ---------- Stat strip ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.stat{background:var(--paper);padding:30px 26px}
.stat b{font-family:var(--f-display);font-size:2.1rem;display:block;line-height:1;color:var(--accent-deep)}
.stat small{display:block;margin-top:8px;color:var(--ink-soft);font-size:.92rem}
@media(max-width:720px){.stats{grid-template-columns:repeat(2,1fr)}}

/* ---------- Cards ---------- */
.grid{display:grid;gap:24px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
@media(max-width:880px){.grid-3{grid-template-columns:1fr}.grid-2{grid-template-columns:1fr}}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r);
  padding:30px 28px;box-shadow:var(--shadow);transition:.2s;
}
.card:hover{transform:translateY(-3px)}
.card .ico{
  width:46px;height:46px;border-radius:10px;display:grid;place-items:center;
  background:var(--paper-2);margin-bottom:18px;font-size:1.4rem;
}
.card h3{margin-bottom:8px}
.card p{color:var(--ink-soft);font-size:.98rem;margin:0}
.card .price{font-family:var(--f-display);font-weight:600;color:var(--accent-deep);margin-top:14px;display:block}

/* ---------- Split / feature ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:54px;align-items:center}
.split--alt{direction:rtl}
.split--alt > *{direction:ltr}
@media(max-width:880px){.split{grid-template-columns:1fr;gap:32px}.split--alt{direction:ltr}}
.media-box{
  border-radius:var(--r);overflow:hidden;border:1px solid var(--line);
  background:linear-gradient(160deg,var(--paper-2),#fff);min-height:280px;
  display:grid;place-items:center;box-shadow:var(--shadow);
}

/* ---------- List checks ---------- */
.checks{list-style:none;padding:0;margin:0}
.checks li{position:relative;padding:9px 0 9px 34px;border-bottom:1px solid var(--line)}
.checks li:last-child{border-bottom:0}
.checks li::before{
  content:"";position:absolute;left:0;top:14px;width:20px;height:20px;border-radius:50%;
  background:var(--A);
  -webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='white' d='M9 16.2 4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4z'/%3E%3C/svg%3E") center/15px no-repeat;
          mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='white' d='M9 16.2 4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4z'/%3E%3C/svg%3E") center/15px no-repeat;
}

/* ---------- Process steps ---------- */
.steps{counter-reset:step;display:grid;gap:20px}
.step{display:grid;grid-template-columns:auto 1fr;gap:22px;align-items:start;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:26px 28px}
.step::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  font-family:var(--f-display);font-weight:700;font-size:1.5rem;
  color:#fff;background:var(--accent);width:54px;height:54px;border-radius:12px;
  display:grid;place-items:center;
}
.step h3{margin:4px 0 6px}
.step p{margin:0;color:var(--ink-soft);font-size:.98rem}

/* ---------- Banner / CTA section ---------- */
.cta-band{background:var(--ink);color:var(--paper);border-radius:var(--r);padding:54px 46px;text-align:center;position:relative;overflow:hidden}
.cta-band::before{content:"";position:absolute;inset:0;background:radial-gradient(600px 300px at 80% 0,rgba(29,143,78,.4),transparent 60%)}
.cta-band > *{position:relative}
.cta-band h2{color:#fff}
.cta-band p{color:rgba(246,247,242,.8);max-width:620px;margin:0 auto 26px}

/* ---------- Tables ---------- */
.ptable{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.ptable th,.ptable td{text-align:left;padding:16px 20px;border-bottom:1px solid var(--line)}
.ptable th{font-family:var(--f-display);background:var(--paper-2);font-size:.9rem;text-transform:uppercase;letter-spacing:.05em}
.ptable tr:last-child td{border-bottom:0}
.ptable td .from{color:var(--accent-deep);font-family:var(--f-display);font-weight:600}

/* ---------- FAQ ---------- */
.faq{max-width:820px;margin:0 auto}
.faq details{background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);margin-bottom:12px;padding:4px 8px}
.faq summary{font-family:var(--f-display);font-weight:600;cursor:pointer;padding:16px 12px;list-style:none;display:flex;justify-content:space-between;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:1.5rem;color:var(--accent-deep);line-height:1}
.faq details[open] summary::after{content:"–"}
.faq details p{padding:0 12px 16px;margin:0;color:var(--ink-soft)}

/* ---------- Contact ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:46px}
@media(max-width:880px){.contact-grid{grid-template-columns:1fr}}
.field{margin-bottom:18px}
.field label{display:block;font-family:var(--f-display);font-weight:600;font-size:.9rem;margin-bottom:7px}
.field input,.field textarea,.field select{
  width:100%;padding:13px 15px;border:1.5px solid var(--line);border-radius:var(--r-sm);
  font-family:var(--f-body);font-size:1rem;background:#fff;color:var(--ink);
}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--accent)}
.info-card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:30px;box-shadow:var(--shadow)}
.info-row{display:flex;gap:14px;padding:14px 0;border-bottom:1px solid var(--line)}
.info-row:last-child{border-bottom:0}
.info-row .k{font-family:var(--f-display);font-weight:600;min-width:90px}

/* ---------- Footer ---------- */
.site-foot{background:var(--ink);color:rgba(246,247,242,.7);padding:60px 0 30px;margin-top:0}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px;margin-bottom:40px}
@media(max-width:720px){.foot-grid{grid-template-columns:1fr;gap:28px}}
.site-foot h4{color:#fff;font-size:1rem;margin-bottom:14px}
.site-foot a{color:rgba(246,247,242,.7);display:block;padding:5px 0}
.site-foot a:hover{color:#fff}
.foot-brand{display:flex;align-items:center;gap:10px;color:#fff;font-family:var(--f-display);font-weight:700;font-size:1.1rem;margin-bottom:14px}
.foot-bottom{border-top:1px solid rgba(255,255,255,.12);padding-top:24px;font-size:.86rem;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}

/* ---------- Page hero (interior) ---------- */
.page-hero{background:var(--ink);color:var(--paper);padding:64px 0 56px;position:relative;overflow:hidden}
.page-hero::before{content:"";position:absolute;inset:0;background:radial-gradient(700px 360px at 85% -20%,rgba(29,143,78,.4),transparent 60%)}
.page-hero .wrap{position:relative}
.page-hero h1{color:#fff;max-width:14ch}
.page-hero .lead{color:rgba(246,247,242,.82);max-width:62ch}
.crumbs{font-size:.86rem;color:rgba(246,247,242,.55);margin-bottom:18px;font-family:var(--f-display)}
.crumbs a{color:rgba(246,247,242,.7)}

/* reveal on scroll */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}

/* =========================================================
   PORTOFOLIU — galerie pe categorii + lightbox
   ========================================================= */
.port-filters{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;margin-bottom:38px}
.port-filter{
  font-family:var(--f-display);font-weight:600;font-size:.95rem;
  padding:10px 20px;border-radius:999px;border:1.5px solid var(--line);
  background:#fff;color:var(--ink);cursor:pointer;transition:.18s;
}
.port-filter:hover{border-color:var(--accent)}
.port-filter.active{background:var(--accent);border-color:var(--accent);color:#fff}

.gallery{
  display:grid;grid-template-columns:repeat(3,1fr);gap:16px;
}
@media(max-width:880px){.gallery{grid-template-columns:repeat(2,1fr)}}
@media(max-width:540px){.gallery{grid-template-columns:1fr}}
.gitem{
  position:relative;border-radius:var(--r);overflow:hidden;cursor:pointer;
  aspect-ratio:4/3;background:var(--paper-2);border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.gitem img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.gitem:hover img{transform:scale(1.06)}
.gitem .cap{
  position:absolute;left:0;right:0;bottom:0;
  padding:26px 16px 14px;color:#fff;
  font-family:var(--f-display);font-weight:600;font-size:.95rem;
  background:linear-gradient(to top,rgba(16,36,27,.85),transparent);
  opacity:0;transform:translateY(8px);transition:.25s;
}
.gitem:hover .cap{opacity:1;transform:none}
.gitem .tag{
  position:absolute;top:12px;left:12px;font-family:var(--f-display);
  font-size:.72rem;font-weight:600;text-transform:uppercase;letter-spacing:.06em;
  background:rgba(255,255,255,.92);color:var(--ink);padding:5px 10px;border-radius:6px;
}
.gitem.hide{display:none}

/* lightbox */
.lb{
  position:fixed;inset:0;z-index:200;background:rgba(16,36,27,.94);
  display:none;align-items:center;justify-content:center;padding:30px;
}
.lb.open{display:flex}
.lb img{max-width:92vw;max-height:86vh;border-radius:10px;box-shadow:0 30px 80px rgba(0,0,0,.5)}
.lb-close,.lb-nav{
  position:absolute;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.25);
  color:#fff;width:50px;height:50px;border-radius:50%;cursor:pointer;font-size:1.5rem;
  display:grid;place-items:center;transition:.18s;
}
.lb-close:hover,.lb-nav:hover{background:rgba(255,255,255,.25)}
.lb-close{top:24px;right:24px}
.lb-nav.prev{left:24px;top:50%;transform:translateY(-50%)}
.lb-nav.next{right:24px;top:50%;transform:translateY(-50%)}
.lb-cap{position:absolute;bottom:24px;left:0;right:0;text-align:center;color:rgba(255,255,255,.85);font-family:var(--f-display);font-size:.95rem}
@media(max-width:600px){.lb-nav{width:42px;height:42px}.lb-nav.prev{left:10px}.lb-nav.next{right:10px}}

/* teaser homepage portofoliu */
.port-teaser{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
@media(max-width:880px){.port-teaser{grid-template-columns:repeat(2,1fr)}}
.port-teaser .gitem{aspect-ratio:1/1}