/* ============================================================
   Enerlight Solar — базові стилі
   Палітра: глибока синя ніч + сонячний бурштин.
   Свідомо без зеленого — його використовують усі конкуренти.
   ============================================================ */

:root{
  /* Фірмовий колір з логотипа Enerlight Solar */
  --brand:#004E73;
  --brand-deep:#003A57;
  --brand-ink:#00293E;
  --brand-soft:#0A6B94;

  --sun:#FFB020;
  --sun-soft:#FFD26E;
  --ember:#FF7A18;

  --sky:#EAF2F7;
  --sky-2:#F5F9FC;
  --ink:#0E2431;
  --muted:#56727F;
  --line:#D6E3EB;
  --white:#fff;

  --display:'Unbounded',system-ui,sans-serif;
  --body:'Manrope',system-ui,sans-serif;
  --mono:'JetBrains Mono',ui-monospace,monospace;

  --wrap:1180px;
  --r:16px;
  --r-sm:10px;
  --shadow:0 18px 44px rgba(0,41,62,.12);
  --shadow-sun:0 12px 30px rgba(255,140,26,.32);
}

*,*::before,*::after{box-sizing:border-box}

html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important}
}

body{
  margin:0;
  font-family:var(--body);
  font-size:17px;
  line-height:1.62;
  color:var(--ink);
  background:var(--white);
  -webkit-font-smoothing:antialiased;
}

img{max-width:100%;display:block}
a{color:inherit}

h1,h2,h3,h4{font-family:var(--display);font-weight:800;line-height:1.08;letter-spacing:-.02em;margin:0}
h1{font-size:clamp(2.1rem,5.2vw,3.9rem)}
h2{font-size:clamp(1.7rem,3.6vw,2.7rem)}
h3{font-size:clamp(1.15rem,2vw,1.4rem);font-weight:600}
h4{font-size:.95rem;font-weight:600;letter-spacing:.02em}
p{margin:0 0 1em}

.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px}

.skip{position:absolute;left:-9999px}
.skip:focus{left:12px;top:12px;z-index:200;background:var(--sun);color:var(--brand-ink);padding:10px 16px;border-radius:8px}

:focus-visible{outline:3px solid var(--sun);outline-offset:3px;border-radius:4px}

/* ── Кнопки ───────────────────────────────────────────────── */

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  font-family:var(--body);font-weight:800;font-size:1rem;
  padding:16px 28px;border-radius:999px;border:2px solid transparent;
  text-decoration:none;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease;
}
.btn-sm{padding:11px 20px;font-size:.9rem}
.btn-sun{
  background:linear-gradient(96deg,var(--sun) 0%,var(--ember) 100%);
  color:var(--brand-ink);box-shadow:var(--shadow-sun);
}
.btn-sun:hover{transform:translateY(-2px);box-shadow:0 16px 38px rgba(255,140,26,.45)}
.btn-ghost{border-color:rgba(255,255,255,.34);color:var(--white);background:transparent}
.btn-ghost:hover{border-color:var(--sun);color:var(--sun)}
.btn-line{border-color:var(--line);color:var(--ink);background:var(--white)}
.btn-line:hover{border-color:var(--brand);transform:translateY(-2px)}
.btn[disabled]{opacity:.55;pointer-events:none}

/* ── Шапка ────────────────────────────────────────────────── */

.site-head{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.head-inner{display:flex;align-items:center;gap:20px;min-height:78px}
.logo{display:flex;align-items:center;text-decoration:none;margin-right:auto}
.logo img{height:38px;width:auto}
.logo-text{font-family:var(--display);font-weight:800;font-size:1.15rem;letter-spacing:-.03em;color:var(--brand)}
.logo-accent{color:var(--sun);margin-left:.28em}

.nav{display:flex;align-items:center;gap:26px}
.nav>a{
  color:var(--brand);text-decoration:none;font-weight:700;font-size:.95rem;
  padding:6px 0;border-bottom:2px solid transparent;transition:color .16s,border-color .16s;
}
.nav>a:hover{color:var(--ember)}
.nav>a.is-active{color:var(--ember);border-color:var(--ember)}
.nav-cta{margin-left:4px;font-size:.82rem;padding-left:16px;padding-right:16px;white-space:nowrap}

.lang{display:flex;gap:2px;background:var(--sky);border-radius:999px;padding:3px}
.lang a{
  padding:5px 11px;border-radius:999px;font-size:.78rem;font-weight:800;letter-spacing:.04em;
  color:var(--muted);text-decoration:none;transition:.16s;
}
.lang a.is-active{background:var(--brand);color:#fff}

.burger{display:none;flex-direction:column;gap:5px;background:none;border:0;padding:10px;cursor:pointer}
.burger span{width:24px;height:2px;background:var(--brand);border-radius:2px;transition:.22s}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ── Hero ─────────────────────────────────────────────────── */

.hero{
  position:relative;overflow:hidden;color:var(--white);
  background:
    radial-gradient(900px 520px at 88% -10%,rgba(255,176,32,.22),transparent 62%),
    radial-gradient(720px 500px at 4% 106%,rgba(10,107,148,.55),transparent 62%),
    linear-gradient(160deg,var(--brand-deep) 0%,var(--brand-ink) 100%);
  padding:clamp(52px,8vw,96px) 0 clamp(56px,7vw,86px);
}
.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:56px;align-items:center}

.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-family:var(--mono);font-size:.76rem;font-weight:700;
  letter-spacing:.16em;text-transform:uppercase;color:var(--sun);margin-bottom:20px;
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--sun);border-radius:2px}

.hero h1{margin-bottom:22px}
.hero h1 .line-2{
  display:block;
  background:linear-gradient(94deg,var(--sun) 0%,var(--sun-soft) 55%,var(--ember) 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{font-size:1.06rem;color:rgba(255,255,255,.80);max-width:36em;margin-bottom:30px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.hero-note{
  display:flex;align-items:center;gap:9px;margin-top:22px;
  font-size:.88rem;color:rgba(255,255,255,.62);
}
.hero-note::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--sun);flex:none}

/* ── Підпис-фішка: графік доби ────────────────────────────── */

.daychart{
  background:rgba(255,255,255,.055);
  border:1px solid rgba(255,255,255,.13);
  border-radius:22px;padding:22px 22px 16px;
  box-shadow:0 26px 60px rgba(0,0,0,.34);
}
.daychart h3{font-size:1.02rem;font-weight:600;color:var(--white);margin-bottom:4px}
.daychart-sub{font-size:.79rem;color:rgba(255,255,255,.55);margin-bottom:16px;line-height:1.45}
.daychart svg{width:100%;height:auto;display:block;overflow:visible}
.daychart-legend{display:flex;flex-wrap:wrap;gap:8px 18px;margin-top:14px;font-size:.78rem;color:rgba(255,255,255,.72)}
.daychart-legend span{display:inline-flex;align-items:center;gap:7px}
.dot{width:10px;height:10px;border-radius:3px;flex:none}
.dot-gen{background:var(--sun)}
.dot-batt{background:#5FD0E6}
.dot-night{background:rgba(255,255,255,.24)}

.curve-gen{
  stroke-dasharray:640;stroke-dashoffset:640;
  animation:draw 1.5s .25s ease-out forwards;
}
@keyframes draw{to{stroke-dashoffset:0}}
.area-gen{opacity:0;animation:fade .9s 1.15s ease-out forwards}
.area-batt{opacity:0;animation:fade .9s 1.45s ease-out forwards}
@keyframes fade{to{opacity:1}}

/* ── Смуга показників ─────────────────────────────────────── */

.stats{background:var(--brand);color:var(--white);border-top:1px solid rgba(255,255,255,.08)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:2px;background:rgba(255,255,255,.08)}
.stat{background:var(--brand);padding:30px 22px;text-align:center}
.stat b{
  display:block;font-family:var(--display);font-size:clamp(1.7rem,3.4vw,2.5rem);
  font-weight:800;color:var(--sun);letter-spacing:-.03em;line-height:1;
}
.stat span{display:block;margin-top:9px;font-size:.85rem;color:rgba(255,255,255,.66);line-height:1.4}

/* ── Секції ───────────────────────────────────────────────── */

.section{padding:clamp(56px,7vw,92px) 0}
.section-sky{background:var(--sky)}
.section-head{max-width:44rem;margin-bottom:44px}
.section-head .eyebrow{color:var(--ember)}
.section-head .eyebrow::before{background:var(--ember)}
.section-head h2{margin-bottom:14px}
.section-head p{color:var(--muted);font-size:1.02rem;margin:0}
.section-dark .section-head .eyebrow{color:var(--sun)}
.section-dark .section-head .eyebrow::before{background:var(--sun)}
.section-dark{background:var(--brand-ink);color:var(--white)}
.section-dark .section-head p{color:rgba(255,255,255,.7)}

.section-more{margin-top:36px;display:flex;justify-content:center}

/* ── Картки рішень ────────────────────────────────────────── */

.sol-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(258px,1fr));gap:22px}
.sol{
  position:relative;display:flex;flex-direction:column;
  background:var(--white);border:1px solid var(--line);border-radius:var(--r);
  padding:26px 24px 24px;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.sol:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--sun)}
.sol-badge{
  position:absolute;top:-11px;left:22px;
  background:linear-gradient(96deg,var(--sun),var(--ember));color:var(--brand-ink);
  font-size:.7rem;font-weight:800;letter-spacing:.06em;text-transform:uppercase;
  padding:5px 12px;border-radius:999px;
}
.sol h3{margin-bottom:8px}
.sol-tagline{color:var(--muted);font-size:.92rem;margin-bottom:18px}
.sol-specs{list-style:none;margin:0 0 20px;padding:0;border-top:1px solid var(--line)}
.sol-specs li{
  display:flex;justify-content:space-between;gap:14px;
  padding:9px 0;border-bottom:1px solid var(--line);font-size:.87rem;
}
.sol-specs .k{color:var(--muted)}
.sol-specs .v{font-family:var(--mono);font-weight:700;text-align:right}
.sol-price{margin-top:auto;padding-top:4px;margin-bottom:16px}
.sol-price small{display:block;font-size:.76rem;color:var(--muted);text-transform:uppercase;letter-spacing:.1em}
.sol-price b{font-family:var(--display);font-size:1.5rem;font-weight:800;letter-spacing:-.02em}
.sol-actions{display:flex;gap:10px;flex-wrap:wrap}

/* ── Портфоліо ────────────────────────────────────────────── */

.proj-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(292px,1fr));gap:24px}
.proj{
  display:flex;flex-direction:column;background:var(--white);
  border-radius:var(--r);overflow:hidden;text-decoration:none;color:inherit;
  border:1px solid var(--line);transition:transform .2s ease,box-shadow .2s ease;
}
.proj:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.proj-photo{aspect-ratio:4/3;background:var(--sky);position:relative;overflow:hidden}
.proj-photo img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.proj:hover .proj-photo img{transform:scale(1.05)}
.proj-power{
  position:absolute;left:14px;bottom:14px;
  background:var(--brand-ink);color:var(--sun);
  font-family:var(--mono);font-weight:700;font-size:.85rem;
  padding:6px 12px;border-radius:999px;
}
.proj-body{padding:20px 22px 24px;display:flex;flex-direction:column;flex:1}
.proj-loc{
  font-family:var(--mono);font-size:.75rem;letter-spacing:.1em;text-transform:uppercase;
  color:var(--ember);margin-bottom:8px;
}
.proj h3{font-size:1.12rem;margin-bottom:10px}
.proj-meta{font-size:.86rem;color:var(--muted);margin-top:auto}

.ph-empty{
  display:flex;align-items:center;justify-content:center;height:100%;
  color:#B7C6DA;font-family:var(--mono);font-size:.8rem;letter-spacing:.1em;
}
.empty-note{
  border:2px dashed var(--line);border-radius:var(--r);
  padding:38px 24px;text-align:center;color:var(--muted);
}

/* ── Сторінка проєкту ─────────────────────────────────────── */

.page-head{background:linear-gradient(160deg,var(--brand-deep),var(--brand-ink));color:var(--white);padding:clamp(40px,6vw,68px) 0}
.page-head h1{margin-bottom:14px}
.page-head p{color:rgba(255,255,255,.74);max-width:44rem;margin:0}
.crumb{display:inline-flex;align-items:center;gap:8px;color:var(--sun);text-decoration:none;font-size:.88rem;font-weight:700;margin-bottom:18px}
.crumb:hover{text-decoration:underline}

.proj-layout{display:grid;grid-template-columns:1.55fr .95fr;gap:44px;align-items:start}
.spec-card{
  background:var(--sky);border-radius:var(--r);padding:24px;
  position:sticky;top:98px;
}
.spec-card dl{margin:0}
.spec-card .row{display:flex;justify-content:space-between;gap:14px;padding:11px 0;border-bottom:1px solid var(--line)}
.spec-card .row:last-of-type{border-bottom:0}
.spec-card dt{color:var(--muted);font-size:.86rem;margin:0}
.spec-card dd{margin:0;font-family:var(--mono);font-weight:700;font-size:.88rem;text-align:right}
.spec-card .btn{width:100%;margin-top:18px}

.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:14px;margin-top:22px}
.gallery a{display:block;border-radius:var(--r-sm);overflow:hidden;aspect-ratio:4/3;background:var(--sky)}
.gallery img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.gallery a:hover img{transform:scale(1.06)}

.prose{max-width:40rem}
.prose h2{margin:32px 0 12px;font-size:1.45rem}
.prose p{color:#274453}

/* ── Процес ───────────────────────────────────────────────── */

.steps{counter-reset:step;display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:26px}
.step{position:relative;padding-top:26px;border-top:2px solid rgba(255,255,255,.14)}
.step::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  position:absolute;top:-13px;left:0;background:var(--brand-ink);padding-right:12px;
  font-family:var(--mono);font-weight:700;font-size:.92rem;color:var(--sun);
}
.step h3{color:var(--white);margin-bottom:10px;font-size:1.06rem}
.step p{color:rgba(255,255,255,.68);font-size:.92rem;margin:0}

/* ── Форма заявки ─────────────────────────────────────────── */

.lead-wrap{
  display:grid;grid-template-columns:.9fr 1.1fr;gap:48px;align-items:start;
  background:var(--white);border-radius:22px;padding:clamp(26px,4vw,44px);
  box-shadow:var(--shadow);border:1px solid var(--line);
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:7px}
.field.full{grid-column:1/-1}
.field label{font-size:.85rem;font-weight:700;color:#2C4B5C}
.field input,.field textarea,.field select{
  font-family:var(--body);font-size:1rem;color:var(--ink);
  padding:13px 15px;border:2px solid var(--line);border-radius:var(--r-sm);
  background:var(--white);transition:border-color .16s,box-shadow .16s;width:100%;
}
.field textarea{min-height:106px;resize:vertical}
.field input:focus,.field textarea:focus,.field select:focus{
  outline:none;border-color:var(--sun);box-shadow:0 0 0 4px rgba(255,176,32,.18);
}
.field .err{font-size:.8rem;color:#D53A26;min-height:1em}
.field.has-error input,.field.has-error textarea{border-color:#D53A26}
.form-foot{display:flex;flex-direction:column;gap:12px;margin-top:20px}
.form-privacy{font-size:.79rem;color:var(--muted);margin:0}

.form-ok{
  display:none;text-align:center;padding:34px 20px;
  border:2px solid var(--sun);border-radius:var(--r);background:#FFF9EC;
}
.form-ok.is-visible{display:block}
.form-ok b{display:block;font-family:var(--display);font-size:1.3rem;margin-bottom:8px}
.form-ok p{margin:0;color:var(--muted)}
.is-hidden{display:none}

.lead-aside h2{margin-bottom:14px}
.lead-aside p{color:var(--muted)}
.lead-contacts{margin-top:24px;display:flex;flex-direction:column;gap:12px}
.lead-contacts a{
  display:flex;align-items:center;gap:11px;text-decoration:none;font-weight:800;
  font-size:1.12rem;color:var(--ink);
}
.lead-contacts a:hover{color:var(--ember)}
.lead-contacts small{font-weight:500;color:var(--muted);font-size:.85rem;display:block}

/* ── Контакти ─────────────────────────────────────────────── */

.contact-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:22px}
.contact-card{background:var(--sky);border-radius:var(--r);padding:24px}
.contact-card h4{color:var(--muted);text-transform:uppercase;letter-spacing:.1em;font-size:.75rem;font-family:var(--mono);margin-bottom:10px}
.contact-card a,.contact-card span{font-size:1.06rem;font-weight:700;text-decoration:none;color:var(--ink)}
.contact-card a:hover{color:var(--ember)}

/* ── Футер ────────────────────────────────────────────────── */

.site-foot{background:var(--brand-ink);color:rgba(255,255,255,.72);padding:56px 0 26px;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:38px}
.foot-brand img{height:40px;width:auto;margin-bottom:14px}
.foot-brand p{font-size:.92rem;margin:0 0 8px;max-width:26rem}
.foot-parent{color:rgba(255,255,255,.45);font-size:.85rem!important}
.foot-col h4{color:var(--white);margin-bottom:14px;font-family:var(--mono);font-size:.75rem;letter-spacing:.12em;text-transform:uppercase}
.foot-col a{display:block;text-decoration:none;padding:5px 0;font-size:.94rem;transition:color .16s}
.foot-col a:hover{color:var(--sun)}
.foot-phone{font-weight:800;font-size:1.08rem!important;color:var(--white)!important}
.foot-note{display:block;font-size:.86rem;padding:5px 0;color:rgba(255,255,255,.55)}
.foot-bottom{
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  margin-top:38px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
  font-size:.84rem;color:rgba(255,255,255,.45);
}
.foot-admin{text-decoration:none}
.foot-admin:hover{color:var(--sun)}

/* ── Адаптив ──────────────────────────────────────────────── */

@media (max-width:980px){
  .hero-grid{grid-template-columns:1fr;gap:38px}
  .proj-layout{grid-template-columns:1fr;gap:28px}
  .spec-card{position:static}
  .lead-wrap{grid-template-columns:1fr;gap:30px}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr}
}

@media (max-width:760px){
  body{font-size:16px}
  .burger{display:flex}
  .nav{
    position:fixed;inset:78px 0 auto;flex-direction:column;align-items:stretch;gap:0;
    background:#fff;padding:16px 24px 26px;
    border-bottom:1px solid var(--line);box-shadow:0 18px 34px rgba(0,41,62,.12);
    transform:translateY(-130%);transition:transform .28s ease;max-height:calc(100vh - 78px);overflow:auto;
  }
  .nav.is-open{transform:translateY(0)}
  .nav>a{padding:14px 0;border-bottom:1px solid var(--line)}
  .nav>a.is-active{border-color:var(--sun)}
  .lang{align-self:flex-start;margin:16px 0}
  .nav-cta{margin:0}
  .form-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr;gap:26px}
  .hero-actions .btn{width:100%}
}

@media (max-width:460px){
  .stats-grid{grid-template-columns:1fr}
}