:root {
  --blue: #0f4da2;
  --blue-dark: #092541;
  --gold: #dfba2f;
  --gold-dark: #b89418;
  --ink: #16202a;
  --muted: #5d6874;
  --line: #d9e0e7;
  --paper: #ffffff;
  --soft: #f5f7fa;
  --shadow: 0 22px 48px rgba(9, 37, 65, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  background: var(--paper);
}

a {
  color: inherit;
  text-decoration: none;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 70px;
  padding: 12px clamp(18px, 5vw, 70px);
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid rgba(217, 224, 231, 0.78);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 220px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 2px solid var(--blue);
  border-radius: 50%;
  color: var(--blue);
  font-weight: 800;
}

.bulb {
  color: var(--gold-dark);
  font-size: 22px;
  font-family: Georgia, serif;
}

.brand-copy {
  display: grid;
  line-height: 1;
}

.brand-copy strong {
  color: var(--gold);
  font-size: 23px;
  letter-spacing: 0;
}

.brand-copy strong span {
  color: var(--blue);
}

.brand-copy small {
  margin-top: 6px;
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 3px;
  text-transform: uppercase;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: clamp(18px, 3vw, 38px);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.main-nav a {
  padding: 10px 0;
}

.main-nav a:hover {
  color: var(--blue);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 0;
  background: transparent;
}

.nav-toggle span {
  display: block;
  height: 2px;
  margin: 7px 6px;
  background: var(--blue-dark);
}

.hero {
  position: relative;
  min-height: min(720px, calc(100vh - 70px));
  display: grid;
  align-items: center;
  overflow: hidden;
  background: var(--blue-dark);
}

.hero-media,
.hero-shade {
  position: absolute;
  inset: 0;
}

.hero-media {
  background-image: url("assets/hero-energy-family.png");
  background-size: cover;
  background-position: center;
}

.hero-shade {
  background:
    linear-gradient(90deg, rgba(9, 37, 65, 0.92), rgba(9, 37, 65, 0.62) 46%, rgba(9, 37, 65, 0.24)),
    linear-gradient(0deg, rgba(9, 37, 65, 0.18), rgba(9, 37, 65, 0.18));
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(760px, calc(100% - 36px));
  margin-left: clamp(18px, 7vw, 86px);
  color: #fff;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--gold);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 2px;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 20px;
  font-size: clamp(46px, 7vw, 86px);
  line-height: 0.95;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero-lede {
  max-width: 690px;
  font-size: clamp(19px, 2vw, 24px);
  line-height: 1.55;
  font-weight: 700;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 26px;
  border: 1px solid transparent;
  border-radius: 6px;
  font-weight: 800;
  text-transform: uppercase;
  cursor: pointer;
}

.button.primary {
  color: var(--blue-dark);
  background: var(--gold);
  box-shadow: 0 14px 28px rgba(223, 186, 47, 0.26);
}

.button.primary:hover {
  background: #edc943;
}

.button.ghost {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.52);
  background: rgba(255, 255, 255, 0.08);
}

.button.small {
  min-height: 40px;
  color: #fff;
  background: var(--blue);
}

.button.full {
  width: 100%;
}

.trust-band {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
}

.trust-band div {
  padding: 28px clamp(18px, 4vw, 48px);
  background: var(--soft);
}

.trust-band strong,
.trust-band span {
  display: block;
}

.trust-band strong {
  margin-bottom: 8px;
  color: var(--blue-dark);
}

.trust-band span {
  color: var(--muted);
  line-height: 1.5;
}

.section,
.split-section,
.contact-section {
  padding: clamp(64px, 8vw, 110px) clamp(18px, 6vw, 86px);
}

.section-heading {
  max-width: 820px;
  margin-bottom: 34px;
}

h2 {
  color: var(--blue-dark);
  font-size: clamp(31px, 4vw, 52px);
  line-height: 1.08;
  letter-spacing: 0;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.service-card {
  min-height: 260px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 10px 28px rgba(9, 37, 65, 0.07);
}

.service-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  margin-bottom: 28px;
  border-radius: 50%;
  color: var(--blue-dark);
  background: var(--gold);
  font-weight: 900;
}

.service-card h3 {
  color: var(--blue-dark);
  font-size: 24px;
}

.service-card p,
.split-copy p,
.contact-copy p {
  color: var(--muted);
  line-height: 1.7;
}

.split-section {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(310px, 0.9fr);
  gap: clamp(32px, 6vw, 90px);
  background: var(--soft);
}

.split-copy {
  max-width: 760px;
}

.feature-list {
  display: grid;
  align-content: center;
  gap: 16px;
}

.feature-list div {
  padding: 24px;
  border-left: 5px solid var(--gold);
  background: #fff;
  box-shadow: var(--shadow);
}

.feature-list strong,
.feature-list span {
  display: block;
}

.feature-list strong {
  margin-bottom: 8px;
  color: var(--blue);
  font-size: 20px;
}

.feature-list span {
  color: var(--muted);
  line-height: 1.5;
}

.faq-section {
  background: #fff;
}

.faq-list {
  display: grid;
  gap: 14px;
  max-width: 980px;
}

.faq-list details {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--soft);
  overflow: hidden;
}

.faq-list summary {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 66px;
  padding: 18px 58px 18px 22px;
  color: var(--blue-dark);
  font-size: 18px;
  font-weight: 800;
  cursor: pointer;
  list-style: none;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary::after {
  content: "+";
  position: absolute;
  right: 22px;
  color: var(--blue);
  font-size: 28px;
  line-height: 1;
}

.faq-list details[open] summary::after {
  content: "-";
}

.faq-list p {
  margin: 0;
  padding: 0 22px 22px;
  color: var(--muted);
  line-height: 1.7;
}

.contact-section {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 520px);
  gap: clamp(32px, 6vw, 82px);
}

.contact-links {
  display: grid;
  gap: 12px;
  margin-top: 24px;
  color: var(--blue);
  font-weight: 800;
}

.contact-form {
  display: grid;
  gap: 16px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  box-shadow: var(--shadow);
}

label {
  display: grid;
  gap: 8px;
  color: var(--blue-dark);
  font-weight: 800;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 13px 14px;
  color: var(--ink);
  font: inherit;
  background: #fff;
}

textarea {
  resize: vertical;
}

.hidden-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.check-field {
  grid-template-columns: 18px 1fr;
  align-items: start;
  gap: 10px;
  color: var(--muted);
  font-weight: 400;
  line-height: 1.45;
}

.check-field input {
  width: 18px;
  height: 18px;
  margin-top: 1px;
}

.check-field a,
.cookie-banner a {
  color: var(--blue);
  font-weight: 800;
  text-decoration: underline;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 12px 22px;
  padding: 28px 18px 104px;
  color: var(--muted);
  border-top: 1px solid var(--line);
  background: var(--soft);
  font-size: 14px;
}

.site-footer a {
  color: var(--blue);
  font-weight: 800;
}

.thanks-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 28px;
  background:
    linear-gradient(90deg, rgba(9, 37, 65, 0.9), rgba(9, 37, 65, 0.64)),
    url("assets/hero-energy-family.png") center / cover;
}

.thanks-panel {
  width: min(760px, 100%);
  padding: clamp(28px, 6vw, 56px);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: var(--shadow);
}

.thanks-brand {
  margin-bottom: 34px;
}

.thanks-panel h1 {
  color: var(--blue-dark);
  font-size: clamp(38px, 6vw, 64px);
}

.thanks-panel p:not(.eyebrow) {
  color: var(--muted);
  font-size: 18px;
  line-height: 1.65;
}

.legal-page {
  width: min(980px, calc(100% - 36px));
  margin: 0 auto;
  padding: clamp(36px, 7vw, 82px) 0;
}

.legal-page h1 {
  color: var(--blue-dark);
  font-size: clamp(40px, 6vw, 68px);
}

.legal-page section {
  padding: 26px 0;
  border-top: 1px solid var(--line);
}

.legal-page h2 {
  margin-bottom: 12px;
  font-size: clamp(24px, 3vw, 34px);
}

.legal-page p {
  color: var(--muted);
  font-size: 17px;
  line-height: 1.75;
}

.legal-page a {
  color: var(--blue);
  font-weight: 800;
}

.whatsapp {
  position: fixed;
  right: 20px;
  bottom: 88px;
  z-index: 30;
  display: grid;
  place-items: center;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  color: #fff;
  background: #1fbd5a;
  box-shadow: 0 12px 30px rgba(31, 189, 90, 0.36);
  font-size: 14px;
  font-weight: 900;
}

.cookie-banner {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 18px clamp(18px, 4vw, 42px);
  border-top: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.97);
  box-shadow: 0 -10px 30px rgba(9, 37, 65, 0.1);
}

.cookie-banner p {
  margin: 0;
  color: var(--muted);
  line-height: 1.45;
}

.cookie-banner.is-hidden {
  display: none;
}

@media (max-width: 900px) {
  .site-header {
    min-height: 64px;
  }

  .brand {
    min-width: 0;
  }

  .brand-copy small {
    letter-spacing: 1.5px;
  }

  .nav-toggle {
    display: block;
  }

  .main-nav {
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    display: none;
    padding: 12px 22px 22px;
    background: #fff;
    border-bottom: 1px solid var(--line);
  }

  .main-nav.is-open {
    display: grid;
    gap: 10px;
  }

  .hero {
    min-height: 660px;
  }

  .hero-content {
    margin-left: 18px;
    padding-top: 48px;
  }

  .trust-band,
  .service-grid,
  .split-section,
  .contact-section {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .brand-mark {
    width: 34px;
    height: 34px;
  }

  .brand-copy strong {
    font-size: 18px;
  }

  .brand-copy small {
    display: none;
  }

  h1 {
    font-size: 42px;
  }

  .hero-lede {
    font-size: 18px;
  }

  .hero-actions,
  .cookie-banner {
    align-items: stretch;
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .whatsapp {
    right: 16px;
    bottom: 116px;
  }
}