:root {
  --sun: #ffb21a;
  --sun-deep: #f47a16;
  --sky: #11a7ee;
  --blue: #055ca8;
  --deep: #051c3a;
  --dark: #071529;
  --text: #11223a;
  --muted: #64748b;
  --line: rgba(15, 72, 128, .13);
  --bg: #f6fbff;
  --card: #ffffff;
  --shadow: 0 24px 80px rgba(5, 28, 58, .14);
  --radius: 28px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.55;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button, input, textarea, select { font: inherit; }

.container {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.topbar {
  background: #061a34;
  color: rgba(255,255,255,.88);
  font-size: 14px;
}
.topbar__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  min-height: 42px;
}
.topbar__phones, .topbar__socials { display: flex; gap: 14px; flex-wrap: wrap; }
.topbar a:hover { color: var(--sun); }

.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, .88);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--line);
}
.header__inner {
  height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.logo { display: inline-flex; align-items: center; gap: 12px; }
.logo img { width: min(260px, 48vw); height: auto; }
.nav { display: flex; align-items: center; gap: 8px; }
.nav a {
  padding: 10px 13px;
  border-radius: 999px;
  color: #17395f;
  font-weight: 700;
  font-size: 15px;
}
.nav a:hover, .nav a.active { background: rgba(17, 167, 238, .12); color: var(--blue); }
.header__cta { display: flex; align-items: center; gap: 10px; }
.burger {
  display: none;
  border: 0;
  background: var(--deep);
  color: white;
  width: 46px;
  height: 46px;
  border-radius: 14px;
  cursor: pointer;
}
.burger span { display: block; width: 20px; height: 2px; background: white; margin: 4px auto; border-radius: 4px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 46px;
  padding: 12px 20px;
  border-radius: 999px;
  font-weight: 800;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn--primary { background: linear-gradient(135deg, var(--sun), var(--sun-deep)); color: #09172b; box-shadow: 0 16px 35px rgba(244, 122, 22, .28); }
.btn--blue { background: linear-gradient(135deg, var(--sky), var(--blue)); color: #fff; box-shadow: 0 16px 35px rgba(5, 92, 168, .24); }
.btn--ghost { border-color: rgba(255,255,255,.34); color: white; background: rgba(255,255,255,.08); }
.btn--outline { border-color: rgba(5,92,168,.25); color: var(--blue); background: #fff; }

.hero {
  position: relative;
  overflow: hidden;
  color: white;
  background:
    radial-gradient(circle at 82% 18%, rgba(255,178,26,.95) 0 5%, transparent 12%),
    radial-gradient(circle at 10% 10%, rgba(17,167,238,.34), transparent 34%),
    linear-gradient(135deg, #05152d 0%, #063e7f 52%, #0a95d6 100%);
}
.hero::before {
  content: "";
  position: absolute;
  inset: auto -8% -90px -8%;
  height: 260px;
  background: linear-gradient(180deg, rgba(255,255,255,.20), rgba(255,255,255,0)), linear-gradient(90deg, rgba(17,167,238,.4), rgba(255,178,26,.1));
  transform: skewY(-4deg);
  border-top: 1px solid rgba(255,255,255,.2);
}
.hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.03fr) minmax(360px, .97fr);
  gap: 48px;
  align-items: center;
  min-height: 720px;
  padding: 74px 0 96px;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--sun);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: .1em;
  font-size: 13px;
}
.eyebrow::before { content: ""; width: 34px; height: 2px; background: currentColor; border-radius: 4px; }
h1, h2, h3, p { margin-top: 0; }
.hero h1 {
  margin: 18px 0 22px;
  font-size: clamp(42px, 7vw, 78px);
  line-height: .96;
  letter-spacing: -.05em;
}
.hero__lead { font-size: clamp(18px, 2.2vw, 24px); color: rgba(255,255,255,.82); max-width: 710px; }
.hero__actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 34px; }
.hero__bullets { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 42px; }
.hero__bullet {
  padding: 16px;
  border: 1px solid rgba(255,255,255,.16);
  background: rgba(255,255,255,.08);
  border-radius: 20px;
  backdrop-filter: blur(10px);
}
.hero__bullet strong { display: block; font-size: 22px; color: #fff; }
.hero__bullet span { color: rgba(255,255,255,.74); font-size: 14px; }

.energy-card {
  position: relative;
  min-height: 510px;
  border-radius: 42px;
  padding: 26px;
  background: linear-gradient(145deg, rgba(255,255,255,.2), rgba(255,255,255,.08));
  border: 1px solid rgba(255,255,255,.2);
  box-shadow: 0 40px 100px rgba(0,0,0,.25);
  backdrop-filter: blur(18px);
  overflow: hidden;
}
.energy-card::before {
  content: "";
  position: absolute;
  inset: 54% -20% -18% -12%;
  background:
    linear-gradient(90deg, transparent 0 11%, rgba(255,255,255,.38) 11% 12%, transparent 12% 25%, rgba(255,255,255,.34) 25% 26%, transparent 26% 39%, rgba(255,255,255,.34) 39% 40%, transparent 40% 53%, rgba(255,255,255,.34) 53% 54%, transparent 54% 67%, rgba(255,255,255,.34) 67% 68%, transparent 68%),
    linear-gradient(0deg, transparent 0 24%, rgba(255,255,255,.3) 24% 25%, transparent 25% 49%, rgba(255,255,255,.3) 49% 50%, transparent 50% 74%, rgba(255,255,255,.3) 74% 75%, transparent 75%),
    linear-gradient(135deg, #062b61, #0c8ed9);
  transform: perspective(600px) rotateX(60deg) rotateZ(-8deg);
  border: 1px solid rgba(255,255,255,.3);
  border-radius: 24px;
}
.energy-card__sun {
  width: 146px;
  height: 146px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, #fff06f, var(--sun), var(--sun-deep));
  box-shadow: 0 0 60px rgba(255,178,26,.55);
  position: absolute;
  top: 42px;
  right: 52px;
}
.energy-card__box {
  position: absolute;
  left: 26px;
  right: 26px;
  bottom: 28px;
  z-index: 2;
  border-radius: 28px;
  padding: 22px;
  color: #071529;
  background: rgba(255,255,255,.92);
  box-shadow: 0 28px 60px rgba(0,0,0,.18);
}
.energy-card__box h3 { margin: 0 0 10px; font-size: 25px; }
.energy-card__meta { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 16px; }
.energy-card__meta span { display: block; padding: 11px; background: #edf8ff; border-radius: 16px; font-size: 13px; font-weight: 800; color: var(--blue); }

.section { padding: 94px 0; }
.section--white { background: white; }
.section--deep { color: white; background: linear-gradient(135deg, var(--deep), #063e7f); }
.section__head { display: grid; grid-template-columns: .75fr 1fr; gap: 32px; align-items: end; margin-bottom: 42px; }
.section__head h2, .page-hero h1 { font-size: clamp(34px, 5vw, 58px); line-height: 1.02; letter-spacing: -.04em; margin: 10px 0 0; }
.section__head p { color: var(--muted); font-size: 18px; margin: 0; }
.section--deep .section__head p { color: rgba(255,255,255,.75); }

.grid { display: grid; gap: 22px; }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.card {
  position: relative;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: 0 14px 50px rgba(5, 28, 58, .06);
  overflow: hidden;
}
.card:hover { box-shadow: var(--shadow); transform: translateY(-3px); transition: .25s ease; }
.card--blue { background: linear-gradient(145deg, #052e66, #0a8ad2); color: white; border-color: rgba(255,255,255,.16); }
.card--sun { background: linear-gradient(145deg, #fff7d7, #fff); }
.card__icon {
  width: 56px;
  height: 56px;
  display: grid;
  place-items: center;
  border-radius: 18px;
  background: linear-gradient(135deg, rgba(17,167,238,.16), rgba(255,178,26,.18));
  font-size: 27px;
  margin-bottom: 20px;
}
.card h3 { font-size: 23px; line-height: 1.18; margin: 0 0 12px; }
.card p { color: var(--muted); margin-bottom: 0; }
.card--blue p { color: rgba(255,255,255,.8); }
.card ul { padding-left: 18px; margin: 14px 0 0; color: var(--muted); }
.card--blue ul { color: rgba(255,255,255,.83); }
.card li { margin: 8px 0; }

.solution {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border-radius: 36px;
  overflow: hidden;
  background: white;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}
.solution__text { padding: 44px; }
.solution__text h2 { font-size: clamp(32px, 4vw, 50px); line-height: 1.05; margin-bottom: 18px; }
.solution__visual {
  min-height: 420px;
  background:
    radial-gradient(circle at 72% 20%, rgba(255,178,26,.9) 0 45px, transparent 46px),
    linear-gradient(145deg, rgba(17,167,238,.15), rgba(5,92,168,.75)),
    linear-gradient(90deg, transparent 0 16%, rgba(255,255,255,.35) 16% 17%, transparent 17% 33%, rgba(255,255,255,.32) 33% 34%, transparent 34% 50%, rgba(255,255,255,.3) 50% 51%, transparent 51% 66%, rgba(255,255,255,.3) 66% 67%, transparent 67%),
    linear-gradient(0deg, transparent 0 25%, rgba(255,255,255,.28) 25% 26%, transparent 26% 50%, rgba(255,255,255,.25) 50% 51%, transparent 51% 75%, rgba(255,255,255,.25) 75% 76%, transparent 76%),
    #063e7f;
  position: relative;
}
.solution__visual::after {
  content: "";
  position: absolute;
  inset: 42% 8% 10% 8%;
  border-radius: 26px;
  background: linear-gradient(135deg, rgba(255,255,255,.2), rgba(255,255,255,.02));
  border: 1px solid rgba(255,255,255,.25);
  transform: skewY(-5deg);
}
.steps { counter-reset: step; }
.step {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 18px;
  align-items: start;
}
.step::before {
  counter-increment: step;
  content: "0" counter(step);
  width: 58px;
  height: 58px;
  border-radius: 18px;
  display: grid;
  place-items: center;
  font-weight: 900;
  color: #09172b;
  background: linear-gradient(135deg, var(--sun), var(--sun-deep));
}

.products { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.product {
  background: white;
  border-radius: 26px;
  padding: 20px;
  border: 1px solid var(--line);
  box-shadow: 0 14px 45px rgba(5, 28, 58, .07);
}
.product__image {
  height: 148px;
  border-radius: 20px;
  background:
    radial-gradient(circle at 78% 20%, rgba(255,178,26,.8) 0 26px, transparent 27px),
    linear-gradient(135deg, #e9f8ff, #ffffff);
  position: relative;
  overflow: hidden;
  margin-bottom: 16px;
}
.product__image::after {
  content: "";
  position: absolute;
  inset: 54% 8% 14% 8%;
  background: linear-gradient(135deg, #07366d, #11a7ee);
  border: 1px solid rgba(255,255,255,.85);
  border-radius: 14px;
  transform: skewY(-8deg);
  box-shadow:
    inset 0 0 0 1px rgba(255,255,255,.25),
    0 12px 24px rgba(5, 92, 168, .18);
}
.product__tag { color: var(--blue); font-weight: 900; font-size: 13px; text-transform: uppercase; letter-spacing: .06em; }
.product h3 { font-size: 19px; margin: 6px 0 8px; }
.product p { color: var(--muted); font-size: 14px; margin: 0 0 16px; }

.cta-band {
  border-radius: 40px;
  padding: 46px;
  background:
    radial-gradient(circle at 92% 15%, rgba(255,178,26,.94) 0 58px, transparent 59px),
    linear-gradient(135deg, #052452, #0b93d5);
  color: white;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 26px;
  align-items: center;
  box-shadow: var(--shadow);
}
.cta-band h2 { font-size: clamp(30px, 4.5vw, 52px); line-height: 1.05; margin-bottom: 12px; }
.cta-band p { color: rgba(255,255,255,.78); margin: 0; font-size: 18px; }

.form {
  display: grid;
  gap: 14px;
}
.field { display: grid; gap: 8px; }
.field label { font-weight: 800; color: #15355b; }
.field input, .field textarea, .field select {
  width: 100%;
  border: 1px solid rgba(5,92,168,.18);
  border-radius: 18px;
  padding: 14px 16px;
  background: white;
  outline: none;
}
.field input:focus, .field textarea:focus, .field select:focus { border-color: var(--sky); box-shadow: 0 0 0 4px rgba(17,167,238,.12); }
textarea { min-height: 120px; resize: vertical; }
.form__note { font-size: 13px; color: var(--muted); }

.page-hero {
  padding: 86px 0;
  color: white;
  background:
    radial-gradient(circle at 88% 18%, rgba(255,178,26,.9) 0 58px, transparent 59px),
    linear-gradient(135deg, #05152d, #075ba4 70%, #11a7ee);
}
.page-hero p { color: rgba(255,255,255,.78); max-width: 760px; font-size: 20px; }
.breadcrumbs { margin-top: 18px; color: rgba(255,255,255,.7); font-size: 14px; }
.breadcrumbs a { color: #fff; font-weight: 800; }

.footer {
  color: rgba(255,255,255,.76);
  background: #061a34;
  padding: 62px 0 28px;
}
.footer__grid { display: grid; grid-template-columns: 1.2fr .8fr .8fr 1fr; gap: 34px; }
.footer h3 { color: white; margin-bottom: 14px; }
.footer a:hover { color: var(--sun); }
.footer__logo { width: 260px; margin-bottom: 18px; }
.footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.footer__bottom { border-top: 1px solid rgba(255,255,255,.12); margin-top: 34px; padding-top: 22px; display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap; }

.tabs { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 24px; }
.tab {
  border: 1px solid rgba(5,92,168,.18);
  background: white;
  color: var(--blue);
  padding: 10px 16px;
  border-radius: 999px;
  font-weight: 800;
  cursor: pointer;
}
.tab.active { background: var(--blue); color: white; }
[data-category].hidden { display: none; }

.notice {
  border-radius: 22px;
  padding: 16px 18px;
  background: rgba(255,178,26,.16);
  border: 1px solid rgba(255,178,26,.35);
  color: #61420a;
  font-weight: 700;
}

@media (max-width: 1020px) {
  .header__cta .btn { display: none; }
  .burger { display: block; }
  .nav {
    position: absolute;
    inset: 82px 20px auto 20px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 14px;
    background: white;
    border-radius: 24px;
    box-shadow: var(--shadow);
  }
  .nav.is-open { display: flex; }
  .hero__inner { grid-template-columns: 1fr; min-height: 0; }
  .energy-card { min-height: 440px; }
  .section__head, .solution, .cta-band, .footer__grid { grid-template-columns: 1fr; }
  .grid--4, .products { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 720px) {
  .container { width: min(100% - 28px, 1180px); }
  .topbar__inner { align-items: flex-start; flex-direction: column; padding: 10px 0; }
  .header__inner { height: 72px; }
  .nav { inset: 72px 14px auto 14px; }
  .logo img { width: 210px; }
  .hero__inner { padding: 56px 0 72px; }
  .hero__bullets, .grid--3, .grid--4, .grid--2, .products { grid-template-columns: 1fr; }
  .section { padding: 64px 0; }
  .solution__text, .cta-band { padding: 28px; }
  .footer__bottom { flex-direction: column; }
  .energy-card__meta { grid-template-columns: 1fr; }
}


.energy-card {
  background-image: linear-gradient(180deg, rgba(9, 18, 33, 0.08), rgba(9, 18, 33, 0.36)), url('../img/station-30kw.png');
  background-size: cover;
  background-position: center;
  overflow: hidden;
}
.energy-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(7, 25, 46, 0.05), rgba(7, 25, 46, 0.35));
  pointer-events: none;
}
.energy-card__sun { display: none; }
.energy-card__box {
  position: relative;
  z-index: 1;
  margin-top: auto;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
}
.solution__visual {
  background-image: linear-gradient(180deg, rgba(7, 25, 46, 0.08), rgba(7, 25, 46, 0.32)), url('../img/station-30kw.png');
  background-size: cover;
  background-position: center;
}
@media (min-width: 960px) {
  .page-hero h1 { max-width: 13ch; }
}


/* --- SuneRise refinements v2 --- */
.hero {
  background:
    radial-gradient(circle at 86% 18%, rgba(255,178,26,.92) 0 6%, transparent 13%),
    radial-gradient(circle at 74% 76%, rgba(17,167,238,.16), transparent 22%),
    radial-gradient(circle at 12% 8%, rgba(17,167,238,.26), transparent 30%),
    linear-gradient(135deg, #05152d 0%, #073e82 55%, #1198d9 100%);
}
.hero::after {
  content: "";
  position: absolute;
  right: -3%;
  bottom: 9%;
  width: 42%;
  height: 46%;
  background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,0)), url('../img/station-30kw.png');
  background-size: cover;
  background-position: center;
  border-radius: 36px;
  opacity: .18;
  transform: rotate(-6deg);
  filter: saturate(.95);
  pointer-events: none;
}
.hero__inner { min-height: 690px; padding: 68px 0 88px; }
.hero__content { position: relative; z-index: 2; }
.hero h1 {
  max-width: 8.5ch;
  margin: 16px 0 20px;
  font-size: clamp(38px, 5vw, 68px);
  line-height: 1.02;
}
.hero__lead { max-width: 650px; font-size: clamp(17px, 1.75vw, 21px); }
.hero__highlights { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.hero__highlights span {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 14px; border-radius: 999px;
  background: rgba(255,255,255,.10); border: 1px solid rgba(255,255,255,.18);
  color: rgba(255,255,255,.92); font-size: 13px; font-weight: 800;
  backdrop-filter: blur(8px);
}
.hero__bullets { margin-top: 34px; }
.energy-card {
  display: flex;
  align-items: flex-end;
  min-height: 560px;
  padding: 26px;
  background-image: linear-gradient(180deg, rgba(9, 18, 33, 0.04), rgba(9, 18, 33, 0.34)), url('../img/station-30kw.png');
  background-size: cover;
  background-position: center;
}
.energy-card::before {
  inset: auto -12% -9% -6%;
  height: 150px;
  background: linear-gradient(0deg, rgba(7,58,123,.9), rgba(7,58,123,.3));
  transform: skewY(-6deg);
  border-radius: 0;
  border: 0;
}
.energy-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(7,25,46,.05), rgba(7,25,46,.22));
  pointer-events: none;
}
.energy-card__badge {
  position: absolute; top: 22px; left: 22px; z-index: 2;
  padding: 10px 14px; border-radius: 999px;
  background: rgba(255,255,255,.18); border: 1px solid rgba(255,255,255,.25);
  color: white; font-size: 12px; font-weight: 900; letter-spacing: .04em;
  backdrop-filter: blur(8px);
}
.energy-card__sun { width: 132px; height: 132px; top: 34px; right: 38px; opacity: .95; }
.energy-card__box {
  position: absolute;
  left: 26px; right: 26px; bottom: 64px;
  z-index: 3;
  margin-top: 0;
  max-width: calc(100% - 52px);
  background: rgba(255,255,255,.95);
  backdrop-filter: blur(12px);
}
.energy-card__box h3 { font-size: 21px; }
.energy-card__stats {
  position: absolute; left: 26px; right: 26px; bottom: 18px; z-index: 3;
  display: flex; gap: 10px; flex-wrap: wrap;
}
.energy-card__stats span {
  padding: 9px 12px; border-radius: 999px; background: rgba(255,255,255,.14);
  border: 1px solid rgba(255,255,255,.22); color: #fff; font-size: 12px; font-weight: 800;
  backdrop-filter: blur(8px);
}
.section__head h2, .page-hero h1 { font-size: clamp(30px, 4vw, 48px); line-height: 1.06; }
.solution__text h2 { font-size: clamp(28px, 3.4vw, 42px); line-height: 1.08; }
.cta-band h2 { font-size: clamp(28px, 4vw, 44px); line-height: 1.08; }
.card h3 { font-size: 21px; }
.product__image {
  height: 188px;
  background: linear-gradient(135deg, #eef7ff, #ffffff);
  display: flex; align-items: center; justify-content: center; padding: 16px;
}
.product__image::after { display: none; }
.product__image img {
  display: block; width: 100%; height: 100%; object-fit: contain;
}
.product__image--cover img { object-fit: cover; }
.product__link { width: 100%; justify-content: center; }
.page-hero p { max-width: 820px; font-size: 18px; }
@media (max-width: 1020px) {
  .hero::after { display: none; }
  .energy-card { min-height: 500px; }
}
@media (max-width: 720px) {
  .hero h1 { max-width: none; font-size: clamp(34px, 9vw, 48px); }
  .hero__highlights { margin-top: 18px; }
  .energy-card__box { bottom: 60px; }
  .energy-card__stats { bottom: 16px; }
  .product__image { height: 170px; }
}