:root {
  --bg: #0a0a0a;
  --surface: #111111;
  --text: #f3f3f3;
  --muted: #c9c9c9;
  --line: #242424;
  --primary: #f4f4f4;
  --primary-soft: rgba(255, 255, 255, 0.18);
  --max-width: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  color: var(--text);
  background: var(--bg);
  min-height: 100vh;
}

.background-photo,
.background-overlay,
.page-glow {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

.background-photo {
  background-color: #0a0a0a;
  background-image: url("./assets/bg-fire.jpg");
  background-size: cover;
  background-repeat: no-repeat;
  background-position: center center;
  filter: brightness(0.56) saturate(0.9) contrast(1.04);
}

.background-overlay {
  background: linear-gradient(to bottom, rgba(7, 7, 7, 0.28), rgba(8, 8, 8, 0.46) 40%, rgba(9, 9, 9, 0.62));
}

.page-glow {
  background: radial-gradient(circle at 56% 34%, rgba(255, 255, 255, 0.08), transparent 44%);
}

.topbar,
main,
.footer {
  position: relative;
  z-index: 1;
}

.topbar {
  width: min(var(--max-width), calc(100% - 2rem));
  margin: 0 auto;
  padding: 1.1rem 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
}

.topnav {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.topnav a {
  text-decoration: none;
  color: #b6b6b6;
  font-size: 0.9rem;
}

.top-actions {
  display: flex;
  align-items: center;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
  color: var(--text);
  font-weight: 700;
  letter-spacing: 0.04em;
}

.brand img {
  width: 1.8rem;
  height: 1.8rem;
}

.lang-toggle {
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  background: rgba(17, 17, 17, 0.82);
  color: #c2c2c2;
  font-weight: 600;
  padding: 0.42rem 0.7rem;
  font-size: 0.76rem;
  cursor: pointer;
}

main {
  width: min(var(--max-width), calc(100% - 2rem));
  margin: 0 auto;
}

.section {
  padding: 5.2rem 0;
}

.hero {
  min-height: 72vh;
  display: grid;
  align-content: center;
  gap: 1.2rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.energy {
  width: 220px;
  height: 220px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.18) 0%, rgba(255, 255, 255, 0.09) 35%, transparent 70%);
  filter: blur(2px);
  border-radius: 50%;
}

.eyebrow {
  color: var(--primary);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

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

h1 {
  font-size: clamp(2.2rem, 6vw, 4.8rem);
  line-height: 1.06;
  letter-spacing: -0.04em;
  max-width: 12ch;
}

h2 {
  font-size: clamp(1.7rem, 3vw, 2.5rem);
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
}

.lead {
  max-width: 30ch;
  color: #d0d0d0;
  font-size: clamp(1rem, 1.6vw, 1.25rem);
}

.hero-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.88rem;
  padding: 0.55rem 0.92rem;
  margin-top: 0.35rem;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}

.btn-small {
  font-size: 0.76rem;
  padding: 0.38rem 0.7rem;
  margin-top: 0.1rem;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: #f4f4f4;
  color: #0d0d0d;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

.btn-ghost,
.btn-secondary {
  background: rgba(18, 18, 18, 0.72);
  color: #dddddd;
  border: 1px solid rgba(255, 255, 255, 0.16);
}

.split {
  display: grid;
  gap: 0.8rem;
  max-width: 44rem;
}

.split p,
.highlight p,
.section-intro,
.section-note,
.contact-intro {
  color: #c6c6c6;
  line-height: 1.6;
  max-width: 60ch;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 0.9rem;
  margin-top: 1.1rem;
}

.section-note {
  margin-top: 1rem;
}

.card {
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: linear-gradient(180deg, rgba(18, 18, 18, 0.9), rgba(12, 12, 12, 0.84));
  border-radius: 1rem;
  padding: 1.1rem;
  backdrop-filter: blur(3px);
}

.card h3 {
  margin-bottom: 0.55rem;
}

.card p {
  color: var(--muted);
  line-height: 1.5;
}

.highlight,
.cta {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.cta {
  display: grid;
  gap: 0.6rem;
}

.cta .btn {
  justify-self: start;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.85rem;
  margin-top: 1rem;
}

.process-item {
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 0.9rem;
  padding: 1rem;
  background: rgba(11, 11, 11, 0.72);
}

.process-item span {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 0.08em;
}

.process-item h3 {
  margin-top: 0.48rem;
}

.process-item p {
  margin-top: 0.5rem;
  color: var(--muted);
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 0.85rem;
}

.faq-item {
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 0.9rem;
  padding: 1rem;
  background: rgba(12, 12, 12, 0.6);
}

.faq-item h3 {
  margin-bottom: 0.55rem;
}

.faq-item p {
  color: var(--muted);
}

.metrics {
  margin-top: 1.4rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 0.8rem;
}

.metrics article {
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 0.8rem;
  background: rgba(14, 14, 14, 0.66);
  padding: 0.9rem;
}

.metrics strong {
  color: #f2f2f2;
  font-size: 1.05rem;
}

.metrics p {
  margin-top: 0.3rem;
  color: #bbbbbb;
}

.contact-form {
  margin-top: 1.2rem;
  display: grid;
  gap: 0.65rem;
  max-width: 560px;
}

.contact-form label {
  font-size: 0.9rem;
  color: #d8d8d8;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  border-radius: 0.85rem;
  border: 1px solid rgba(255, 255, 255, 0.13);
  background: rgba(10, 10, 10, 0.73);
  color: var(--text);
  padding: 0.8rem 0.9rem;
  outline: none;
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-soft);
}

#form-status {
  color: var(--muted);
  font-size: 0.92rem;
}

.footer {
  width: min(var(--max-width), calc(100% - 2rem));
  margin: 0 auto;
  padding: 2.2rem 0 2.8rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.footer img {
  height: 1.35rem;
}

.footer p {
  color: var(--muted);
}

@media (max-width: 680px) {
  .background-photo {
    background-size: cover;
    background-position: center 56%;
  }

  .topnav {
    display: none;
  }

  .section {
    padding: 3.4rem 0;
  }

  .hero {
    min-height: 65vh;
  }

  .energy {
    width: 150px;
    height: 150px;
  }

  .footer {
    flex-direction: column;
    align-items: flex-start;
  }
}