/* ── DESIGN TOKENS ── */
:root {
  /* Colours */
  --c-teal:      #40E0D0;
  --c-gold:      #FFD700;
  --c-bg:        #0a0a0a;
  --c-surface:   #111111;
  --c-card:      #1e1e1e;
  --c-border:    rgba(255,255,255,0.08);
  --c-text:      #e0e0e0;
  --c-muted:     rgba(255,255,255,0.45);

  /* Spacing scale (8px base) */
  --sp-1:  8px;
  --sp-2:  16px;
  --sp-3:  24px;
  --sp-4:  32px;
  --sp-5:  48px;
  --sp-6:  64px;
  --sp-7:  80px;
  --sp-8:  96px;

  /* Easing */
  --ease-out:    cubic-bezier(0, 0, 0.2, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', sans-serif;
  line-height: 1.6;
  color: var(--c-text);
  overflow-x: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.hero {
  height: 100vh;
  padding-top: 75px;
  background: radial-gradient(circle at 20% 80%, #40E0D0 0%, transparent 50%), radial-gradient(circle at 80% 20%, #FFD700 0%, transparent 50%), linear-gradient(135deg, #000000 0%, #001122 50%, #003366 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 40px;
  height: 75px;
  background: rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  opacity: 0;
  animation: fadeInLogo 0.8s cubic-bezier(0,0,0.2,1) 0.2s forwards;
}

.nav-logo {
  height: 48px;
  width: auto;
  filter: drop-shadow(0 2px 10px rgba(64,224,208,0.5));
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-links a {
  color: rgba(255,255,255,0.8);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 400;
  letter-spacing: 0.03em;
  position: relative;
  transition: color 0.2s var(--ease-out);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--c-teal);
  transition: width 0.25s var(--ease-out);
}

.nav-links a:hover {
  color: var(--c-teal);
}

.nav-links a:hover::after {
  width: 100%;
}

.nav-cta {
  background: rgba(64,224,208,0.15);
  border: 1px solid rgba(64,224,208,0.5);
  color: #40E0D0;
  padding: 0.5rem 1.4rem;
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s var(--ease-out), border-color 0.2s var(--ease-out), transform 0.15s var(--ease-out), box-shadow 0.2s var(--ease-out);
}

.nav-cta:hover {
  background: rgba(64,224,208,0.28);
  border-color: #40E0D0;
  box-shadow: 0 0 16px rgba(64,224,208,0.2);
}

.nav-cta:active {
  transform: scale(0.96);
}

.lang-switcher {
  display: flex;
  gap: 0.3rem;
  margin-left: 1.5rem;
}

.lang-btn {
  background: transparent;
  border: 1px solid rgba(255,255,255,0.15);
  color: rgba(255,255,255,0.45);
  padding: 0.25rem 0.55rem;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  letter-spacing: 0.05em;
  transition: color 0.2s var(--ease-out), border-color 0.2s var(--ease-out), background 0.2s var(--ease-out), transform 0.15s var(--ease-out);
}

.lang-btn:hover {
  color: white;
  border-color: rgba(255,255,255,0.4);
}

.lang-btn:active {
  transform: scale(0.92);
}

.lang-btn.active {
  background: rgba(64,224,208,0.15);
  border-color: rgba(64,224,208,0.5);
  color: #40E0D0;
}

.hero-content {
  opacity: 0;
  transform: translateY(50px);
  animation: heroReveal 1.5s ease forwards;
}

.hero-title {
  font-size: clamp(4rem, 10vw, 10rem);
  font-weight: 200;
  color: white;
  margin-bottom: 1rem;
  letter-spacing: -0.05em;
  line-height: 1.05;
  opacity: 0;
  transform: translateY(30px);
  animation: slideUpTitle 1.2s cubic-bezier(0,0,0.2,1) 0.3s forwards;
}

.hero-subtitle {
  font-size: clamp(1.2rem, 3vw, 2rem);
  font-weight: 400;
  color: rgba(255,255,255,0.9);
  max-width: 600px;
  margin: 0 auto 3rem;
  line-height: 1.45;
  opacity: 0;
  transform: translateY(30px);
  animation: slideUpSubtitle 1s cubic-bezier(0,0,0.2,1) 0.6s forwards;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  opacity: 0;
  transform: translateY(30px);
  animation: slideUpCTAs 1s cubic-bezier(0,0,0.2,1) 0.9s forwards;
}

.cta-button {
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(10px);
  border: 1.5px solid rgba(255,255,255,0.25);
  color: white;
  font-size: 1.05rem;
  font-weight: 500;
  padding: 0.9rem 2.2rem;
  border-radius: 50px;
  cursor: pointer;
  transition: transform 0.2s var(--ease-out), box-shadow 0.2s var(--ease-out), background 0.2s var(--ease-out), border-color 0.2s var(--ease-out);
  margin: 0;
  letter-spacing: 0.01em;
}

.cta-button:first-child {
  background: rgba(64,224,208,0.18);
  border-color: rgba(64,224,208,0.5);
  color: #40E0D0;
  animation: ctaGlow 3s ease-in-out infinite;
}

@keyframes ctaGlow {
  0%, 100% { box-shadow: 0 0 0 0 rgba(64,224,208,0); }
  50%       { box-shadow: 0 0 24px 6px rgba(64,224,208,0.18); }
}

.cta-button:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(0,0,0,0.3);
}

.cta-button:active {
  transform: translateY(-1px) scale(0.97);
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
  transition-duration: 0.08s;
}

.cta-button:first-child:hover {
  background: rgba(64,224,208,0.28);
  border-color: #40E0D0;
  box-shadow: 0 16px 40px rgba(64,224,208,0.22);
  animation: none;
}

.gallery {
  padding: 100px 0;
  background: #0a0a0a;
}

.gallery-title {
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  font-weight: 300;
  text-align: center;
  margin-bottom: 3.5rem;
  color: #ffffff;
  letter-spacing: -0.03em;
  line-height: 1.15;
  background: linear-gradient(135deg, #40E0D0, #FFD700);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── CAROUSEL ── */
.carousel-wrap {
  position: relative;
  width: 100%;
  overflow: hidden;
  margin-top: 3rem;
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.55s cubic-bezier(0,0,0.2,1), transform 0.55s cubic-bezier(0,0,0.2,1);
}

.carousel-wrap.visible {
  opacity: 1;
  transform: translateY(0);
}

.carousel-track {
  display: flex;
  transition: transform 0.55s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: transform;
}

.carousel-slide {
  flex: 0 0 100%;
  width: 100%;
  min-width: 0;
}

.carousel-slide img {
  width: 100%;
  height: 580px;
  object-fit: cover;
  display: block;
}

.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(0,0,0,0.5);
  border: 1px solid rgba(255,255,255,0.15);
  color: white;
  font-size: 2rem;
  line-height: 1;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(8px);
  transition: background 0.2s, transform 0.2s;
  z-index: 10;
}

.carousel-btn:hover {
  background: rgba(64,224,208,0.25);
  transform: translateY(-50%) scale(1.08);
}

.carousel-prev { left: 20px; }
.carousel-next { right: 20px; }

.carousel-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  padding: 18px 0 6px;
}

.carousel-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255,255,255,0.25);
  border: none;
  cursor: pointer;
  transition: background 0.2s, transform 0.2s;
  padding: 0;
}

.carousel-dot.active {
  background: #40E0D0;
  transform: scale(1.35);
}

.services {
  padding: 96px 0;
  background: #111111;
}

.section-title {
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  font-weight: 300;
  text-align: center;
  margin-bottom: 3.5rem;
  color: #ffffff;
  letter-spacing: -0.03em;
  line-height: 1.15;
  background: linear-gradient(135deg, #40E0D0, #FFD700);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-bottom: 4rem;
}

.service-card {
  background: linear-gradient(160deg, #1e1e1e 0%, #141414 100%);
  padding: 2.5rem 2rem;
  border-radius: 20px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.5);
  text-align: center;
  border: 1px solid #2a2a2a;
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s cubic-bezier(0,0,0.2,1), transform 0.6s cubic-bezier(0,0,0.2,1), border-color 0.3s, box-shadow 0.3s;
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, #40E0D0, #FFD700);
  opacity: 0;
  transition: opacity 0.3s;
}

.service-card .card-icon {
  font-size: 2.5rem;
  margin-bottom: 1.2rem;
  display: block;
  line-height: 1;
  transition: transform 0.3s var(--ease-spring), filter 0.3s var(--ease-out);
}

.service-card.visible:hover .card-icon {
  transform: scale(1.15) translateY(-3px);
  filter: drop-shadow(0 0 12px rgba(64,224,208,0.5));
}

.service-card.visible {
  opacity: 1;
  transform: translateY(0);
}

.service-card.visible:hover {
  transform: translateY(-6px);
  border-color: rgba(64,224,208,0.25);
  box-shadow: 0 24px 64px rgba(0,0,0,0.7), 0 0 40px rgba(64,224,208,0.06);
}

.service-card.visible:hover::before {
  opacity: 1;
}

.service-card:nth-child(1) { transition-delay: 0ms; }
.service-card:nth-child(2) { transition-delay: 120ms; }
.service-card:nth-child(3) { transition-delay: 240ms; }

.service-card h3 {
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 0.85rem;
  color: #ffffff;
  letter-spacing: -0.01em;
}

.service-card p {
  color: rgba(255,255,255,0.5);
  font-size: 0.97rem;
  line-height: 1.65;
}

.contact-form {
  max-width: 500px;
  margin: 4rem auto 0;
  background: #1a1a1a;
  padding: 2rem;
  border-radius: 20px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
  text-align: center;
  border: 1px solid #333;
  color: #e0e0e0;
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.55s cubic-bezier(0,0,0.2,1), transform 0.55s cubic-bezier(0,0,0.2,1);
}

.contact-form.visible {
  opacity: 1;
  transform: translateY(0);
}

.contact-form h3 {
  font-size: 2rem;
  font-weight: 500;
  margin-bottom: 2rem;
}

.contact-form input, .contact-form textarea {
  width: 100%;
  padding: 1rem;
  margin-bottom: 1rem;
  border: 2px solid #333;
  border-radius: 10px;
  font-size: 1rem;
  background: #111;
  color: #e0e0e0;
  transition: border 0.3s;
}

.contact-form input:focus, .contact-form textarea:focus {
  outline: none;
  border-color: #40E0D0;
}

.contact-form button {
  background: linear-gradient(135deg, #40E0D0, #00c4b4);
  color: #000;
  border: none;
  padding: 1rem 3rem;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s var(--ease-out), box-shadow 0.2s var(--ease-out), background 0.25s var(--ease-out);
  letter-spacing: 0.02em;
  width: 100%;
}

.contact-form button:hover {
  background: linear-gradient(135deg, #FFD700, #f5c300);
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(64,224,208,0.28);
}

.contact-form button:active {
  transform: scale(0.97);
  box-shadow: none;
  transition-duration: 0.08s;
}

@keyframes fadeInLogo {
  to {
    opacity: 1;
  }
}

@keyframes heroReveal {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideUpTitle {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideUpSubtitle {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideUpCTAs {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ── STATS STRIP ── */
.stats-strip {
  background: linear-gradient(135deg, #00111f, #002244);
  padding: 80px 0;
  border-top: 1px solid rgba(64,224,208,0.12);
  border-bottom: 1px solid rgba(64,224,208,0.12);
  position: relative;
}

.stats-strip::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, #40E0D0, transparent);
}

.stats-strip::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, #FFD700, transparent);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 2rem;
  text-align: center;
}

.stat-item {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s cubic-bezier(0,0,0.2,1), transform 0.6s cubic-bezier(0,0,0.2,1);
}

.stat-item.visible {
  opacity: 1;
  transform: translateY(0);
}

.stat-item:nth-child(1) { transition-delay: 0ms; }
.stat-item:nth-child(2) { transition-delay: 80ms; }
.stat-item:nth-child(3) { transition-delay: 160ms; }
.stat-item:nth-child(4) { transition-delay: 240ms; }

.stat-number {
  display: block;
  font-size: clamp(3rem, 6vw, 5rem);
  font-weight: 200;
  color: #40E0D0;
  letter-spacing: -0.04em;
  line-height: 1;
  text-shadow: 0 0 40px rgba(64,224,208,0.35);
  transition: text-shadow 0.3s var(--ease-out), transform 0.3s var(--ease-spring);
}

.stat-item:hover .stat-number {
  text-shadow: 0 0 60px rgba(64,224,208,0.7), 0 0 20px rgba(64,224,208,0.5);
  transform: scale(1.05);
}

.stat-label {
  display: block;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.45);
  margin-top: 0.6rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* ── SAVINGS CALCULATOR ── */
.calculator-section {
  padding: 100px 0;
  background: #0a0a0a;
}

.calc-subtitle {
  text-align: center;
  color: rgba(255,255,255,0.5);
  font-size: 1.05rem;
  margin-top: -2.5rem;
  margin-bottom: 3rem;
}

.calculator-card {
  max-width: 720px;
  margin: 0 auto;
  background: #1a1a1a;
  border: 1px solid #2a2a2a;
  border-radius: 24px;
  padding: 2.5rem;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.55s cubic-bezier(0,0,0.2,1), transform 0.55s cubic-bezier(0,0,0.2,1);
}

.calculator-card.visible {
  opacity: 1;
  transform: translateY(0);
}

.calc-input-area {
  margin-bottom: 2rem;
}

.calc-label {
  display: block;
  font-size: 0.95rem;
  color: rgba(255,255,255,0.6);
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.calc-slider-row {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.calc-euro {
  font-size: 1.5rem;
  color: #40E0D0;
  font-weight: 300;
}

.calc-slider {
  flex: 1;
  -webkit-appearance: none;
  height: 4px;
  border-radius: 2px;
  background: linear-gradient(to right, #40E0D0, #003366);
  outline: none;
  cursor: pointer;
}

.calc-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: #40E0D0;
  box-shadow: 0 0 10px rgba(64,224,208,0.5);
  cursor: pointer;
}

.calc-bill-value {
  font-size: 2rem;
  font-weight: 300;
  color: white;
  min-width: 70px;
  text-align: right;
}

.calc-results {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.calc-result-card {
  background: #111;
  border: 1px solid #2a2a2a;
  border-radius: 14px;
  padding: 1.2rem 1rem;
  text-align: center;
  transition: border-color 0.3s var(--ease-out), background 0.3s var(--ease-out);
}

.calc-result-card.highlight {
  border-color: rgba(64,224,208,0.4);
  background: rgba(64,224,208,0.05);
}

.calc-result-value {
  display: block;
  font-size: clamp(1.3rem, 3vw, 1.8rem);
  font-weight: 300;
  color: #40E0D0;
  line-height: 1.2;
}

.calc-result-label {
  display: block;
  font-size: 0.75rem;
  color: rgba(255,255,255,0.45);
  margin-top: 0.4rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.calc-disclaimer {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.3);
  text-align: center;
  margin-bottom: 1.5rem;
}

.calc-cta {
  display: block;
  width: 100%;
  background: linear-gradient(135deg, #40E0D0, #00b8a9);
  color: #000;
  border: none;
  padding: 1rem 2rem;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s var(--ease-out), box-shadow 0.2s var(--ease-out), background 0.2s var(--ease-out);
  letter-spacing: 0.02em;
}

.calc-cta:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(64,224,208,0.32);
}

.calc-cta:active {
  transform: translateY(-1px) scale(0.97);
  transition-duration: 0.08s;
}

/* ── FOOTER ── */
.footer {
  background: #050505;
  border-top: 1px solid #1a1a1a;
  padding: 60px 0 0;
  color: rgba(255,255,255,0.5);
  font-size: 0.9rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 50px;
}

.footer-brand .footer-logo {
  height: 40px;
  width: auto;
  margin-bottom: 1rem;
  filter: drop-shadow(0 2px 8px rgba(64,224,208,0.3));
}

.footer-brand p {
  line-height: 1.7;
  max-width: 260px;
}

.footer-col h4 {
  color: white;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.footer-col p,
.footer-col a {
  display: block;
  color: rgba(255,255,255,0.45);
  text-decoration: none;
  margin-bottom: 0.5rem;
  transition: color 0.2s;
}

.footer-col a:hover {
  color: #40E0D0;
}

.footer-bottom {
  border-top: 1px solid #1a1a1a;
  padding: 1.2rem 0;
  text-align: center;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.25);
}

/* ── GDPR BANNER ── */
.gdpr-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 999;
  background: rgba(10,10,10,0.97);
  backdrop-filter: blur(12px);
  border-top: 1px solid #2a2a2a;
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  font-size: 0.88rem;
  color: rgba(255,255,255,0.6);
  transform: translateY(100%);
  transition: transform 0.4s ease;
}

.gdpr-banner.visible {
  transform: translateY(0);
}

.gdpr-banner a {
  color: #40E0D0;
  text-decoration: none;
}

.gdpr-buttons {
  display: flex;
  gap: 0.75rem;
  flex-shrink: 0;
}

.gdpr-decline {
  background: transparent;
  border: 1px solid #444;
  color: rgba(255,255,255,0.5);
  padding: 0.45rem 1.1rem;
  border-radius: 50px;
  font-size: 0.85rem;
  cursor: pointer;
  transition: border-color 0.2s var(--ease-out), color 0.2s var(--ease-out), transform 0.15s var(--ease-out);
}

.gdpr-decline:hover {
  border-color: #666;
  color: white;
}

.gdpr-decline:active, .gdpr-accept:active {
  transform: scale(0.95);
  transition-duration: 0.08s;
}

.gdpr-accept {
  background: #40E0D0;
  border: none;
  color: #000;
  padding: 0.45rem 1.3rem;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s var(--ease-out), transform 0.15s var(--ease-out);
}

.gdpr-accept:hover {
  background: #FFD700;
}

/* ── SCROLL PROGRESS BAR ── */
#scroll-progress {
  position: fixed;
  top: 0; left: 0;
  width: 0%;
  height: 3px;
  background: linear-gradient(90deg, #40E0D0, #FFD700);
  z-index: 9999;
  transition: width 0.1s linear;
  box-shadow: 0 0 8px rgba(64,224,208,0.6);
}

/* ── NAVBAR SCROLLED ── */
.navbar.scrolled {
  background: rgba(5,5,5,0.9);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom-color: rgba(64,224,208,0.15);
  box-shadow: 0 4px 32px rgba(0,0,0,0.5);
}

/* ── BACK TO TOP ── */
#back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(64,224,208,0.15);
  border: 1px solid rgba(64,224,208,0.4);
  color: #40E0D0;
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.3s var(--ease-out), transform 0.3s var(--ease-out), background 0.2s var(--ease-out), box-shadow 0.2s var(--ease-out);
  pointer-events: none;
  z-index: 999;
}

#back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

#back-to-top:hover {
  background: rgba(64,224,208,0.28);
  box-shadow: 0 0 20px rgba(64,224,208,0.3);
}

#back-to-top:active {
  transform: scale(0.9);
  transition-duration: 0.08s;
}

/* ── FLOATING ORBS (hero background) ── */
.hero-orb {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  animation: orbFloat linear infinite;
  opacity: 0;
}

@keyframes orbFloat {
  0%   { transform: translateY(0) scale(1);   opacity: 0; }
  10%  { opacity: 1; }
  90%  { opacity: 1; }
  100% { transform: translateY(-100vh) scale(0.5); opacity: 0; }
}

/* ── REVEAL CLASSES ── */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.65s cubic-bezier(0,0,0.2,1), transform 0.65s cubic-bezier(0,0,0.2,1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Slide from left */
.reveal-left {
  opacity: 0;
  transform: translateX(-48px);
  transition: opacity 0.65s cubic-bezier(0,0,0.2,1), transform 0.65s cubic-bezier(0,0,0.2,1);
}
.reveal-left.visible {
  opacity: 1;
  transform: translateX(0);
}

/* Slide from right */
.reveal-right {
  opacity: 0;
  transform: translateX(48px);
  transition: opacity 0.65s cubic-bezier(0,0,0.2,1), transform 0.65s cubic-bezier(0,0,0.2,1);
}
.reveal-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* Scale up */
.reveal-scale {
  opacity: 0;
  transform: scale(0.93);
  transition: opacity 0.65s cubic-bezier(0,0,0.2,1), transform 0.65s cubic-bezier(0,0,0.2,1);
}
.reveal-scale.visible {
  opacity: 1;
  transform: scale(1);
}

/* Clip-path wipe for titles */
.reveal-wipe {
  clip-path: inset(0 100% 0 0);
  opacity: 1;
  transition: clip-path 0.8s cubic-bezier(0,0,0.2,1);
}
.reveal-wipe.visible {
  clip-path: inset(0 0% 0 0);
}

/* ── STAT NUMBER PULSE on count ── */
.stat-item.counting .stat-number {
  animation: statPop 0.4s cubic-bezier(0.34,1.56,0.64,1);
}

@keyframes statPop {
  0%   { transform: scale(0.85); }
  60%  { transform: scale(1.08); }
  100% { transform: scale(1); }
}

/* ── CARD SHIMMER ── */
.service-card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 20px;
  background: linear-gradient(135deg, rgba(64,224,208,0.04) 0%, transparent 60%);
  opacity: 0;
  transition: opacity 0.3s;
}
.service-card.visible:hover::after {
  opacity: 1;
}

/* ══════════════════════════════════════════
   SOLAR-E HERO TITLE ANIMATIONS
══════════════════════════════════════════ */

/* When JS splits the title, we override CSS animation */
.hero-title.letter-split {
  opacity: 1;
  transform: none;
  animation: none;
  /* preserve letter spacing from original */
}

/* Each character beams in individually */
.hero-title .char {
  display: inline-block;
  opacity: 0;
  will-change: transform, opacity, filter;
  animation: charBeam 0.65s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

@keyframes charBeam {
  0% {
    opacity: 0;
    transform: translateY(55px) scale(0.5);
    filter: blur(14px);
    text-shadow: 0 0 80px rgba(255,215,0,1), 0 0 160px rgba(255,215,0,0.6);
    color: #FFD700;
  }
  55% {
    opacity: 1;
    transform: translateY(-8px) scale(1.1);
    filter: blur(0);
    text-shadow: 0 0 50px rgba(255,215,0,0.7), 0 0 100px rgba(64,224,208,0.4);
    color: #fff;
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
    filter: blur(0);
    text-shadow: 0 0 18px rgba(64,224,208,0.3);
    color: #fff;
  }
}

/* After all chars are in: colour wave sweeps left→right through each letter */
.hero-title.shimmer-ready .char {
  animation: charGlowWave 6s ease-in-out infinite;
}
/* stagger each letter so the wave travels left → right */
.hero-title.shimmer-ready .char:nth-child(1) { animation-delay: 0.00s; }
.hero-title.shimmer-ready .char:nth-child(2) { animation-delay: 0.20s; }
.hero-title.shimmer-ready .char:nth-child(3) { animation-delay: 0.40s; }
.hero-title.shimmer-ready .char:nth-child(4) { animation-delay: 0.60s; }
.hero-title.shimmer-ready .char:nth-child(5) { animation-delay: 0.80s; }
.hero-title.shimmer-ready .char:nth-child(6) { animation-delay: 1.00s; }
.hero-title.shimmer-ready .char:nth-child(7) { animation-delay: 1.20s; }

@keyframes charGlowWave {
  0%,100% {
    opacity: 1;
    color: #ffffff;
    text-shadow: 0 0 20px rgba(64,224,208,0.18);
  }
  30% {
    opacity: 1;
    color: #a0f5ee;
    text-shadow: 0 0 35px rgba(64,224,208,0.7), 0 0 70px rgba(64,224,208,0.25);
  }
  55% {
    opacity: 1;
    color: #FFD700;
    text-shadow: 0 0 35px rgba(255,215,0,0.85), 0 0 80px rgba(255,215,0,0.35);
  }
  80% {
    opacity: 1;
    color: #a0f5ee;
    text-shadow: 0 0 35px rgba(64,224,208,0.7), 0 0 70px rgba(64,224,208,0.25);
  }
}

/* ── ANIMATED SUN ICON above the title ── */
.hero-sun {
  display: block;
  margin: 0 auto 1.6rem;
  width: 58px;
  height: 58px;
  opacity: 0;
  animation: sunRise 0.9s cubic-bezier(0,0,0.2,1) 0.05s forwards;
}

@keyframes sunRise {
  from { opacity: 0; transform: scale(0.5) translateY(20px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

.hero-sun .sun-core {
  fill: #FFD700;
}

.hero-sun .sun-rays {
  animation: raysRotate 10s linear infinite;
  transform-box: fill-box;
  transform-origin: center;
}

@keyframes raysRotate {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

.hero-sun svg {
  animation: sunGlow 2.5s ease-in-out infinite alternate;
}

@keyframes sunGlow {
  from {
    filter: drop-shadow(0 0 8px rgba(255,215,0,0.7))
            drop-shadow(0 0 20px rgba(255,215,0,0.3));
  }
  to {
    filter: drop-shadow(0 0 20px rgba(255,215,0,1))
            drop-shadow(0 0 50px rgba(255,215,0,0.5))
            drop-shadow(0 0 80px rgba(64,224,208,0.25));
  }
}

/* ── CURSOR SUN OVERLAY (glow) ── */
#sun-cursor {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  will-change: background;
}

/* ── CUSTOM SUN CURSOR (following div) ── */
body.solar-cursor,
body.solar-cursor a,
body.solar-cursor button,
body.solar-cursor label,
body.solar-cursor [role="button"] {
  cursor: none !important;
}
body.solar-cursor input,
body.solar-cursor textarea,
body.solar-cursor select {
  cursor: text !important;
}

#sun-cursor-icon {
  position: fixed;
  top: 0;
  left: 0;
  width: 36px;
  height: 36px;
  pointer-events: none;
  z-index: 99999;
  transform: translate(-200px, -200px);
  will-change: transform;
  animation: cursorPulse 2.5s ease-in-out infinite alternate;
}

@keyframes cursorPulse {
  from { filter: drop-shadow(0 0 4px rgba(255,215,0,0.7)); }
  to   { filter: drop-shadow(0 0 14px rgba(255,215,0,1)) drop-shadow(0 0 28px rgba(255,215,0,0.45)); }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .hero-title .char         { animation-duration: 0.01ms !important; }
  .hero-title.shimmer-ready { animation: none !important; }
  .hero-sun svg             { animation: none !important; }
  .hero-sun .sun-rays       { animation: none !important; }
}

/* ── RESPONSIVE ── */
@keyframes counterCount {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* ══════════════════════════════════════════
   RESPONSIVE — TABLET  ≤900px
══════════════════════════════════════════ */
@media (max-width: 900px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
}

/* ══════════════════════════════════════════
   RESPONSIVE — PHONE  ≤768px
══════════════════════════════════════════ */
@media (max-width: 768px) {

  /* ── Navbar ── */
  .navbar {
    padding: 0 20px;
  }
  .nav-logo {
    height: 38px;
  }
  .nav-links a:not(.nav-cta) {
    display: none;
  }
  .nav-cta {
    font-size: 0.85rem;
    padding: 0.45rem 1.1rem;
  }
  .lang-switcher {
    margin-left: 0.6rem;
  }
  .lang-btn {
    font-size: 0.78rem;
    padding: 0.3rem 0.55rem;
  }

  /* ── Hero ── */
  .hero {
    padding: 0 20px;
  }
  .hero-sun {
    width: 44px;
    height: 44px;
    margin-bottom: 1.2rem;
  }
  .hero-title {
    font-size: clamp(3rem, 13vw, 6rem);
    letter-spacing: -0.03em;
  }
  .hero-subtitle {
    font-size: 1.05rem;
    margin-bottom: 2rem;
  }
  .hero-ctas {
    flex-direction: column;
    align-items: center;
  }
  .cta-button {
    width: 100%;
    max-width: 300px;
  }

  /* ── Gallery / Carousel ── */
  .gallery {
    padding: 60px 0;
  }
  .gallery-title {
    margin-bottom: 2rem;
  }
  .carousel-slide img {
    height: clamp(280px, 72vw, 420px);
    object-position: center 55%;
  }
  .carousel-btn {
    width: 40px;
    height: 40px;
    font-size: 1.4rem;
  }

  /* ── Stats ── */
  .stats-strip {
    padding: 50px 0;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem 1rem;
  }

  /* ── Services ── */
  .services {
    padding: 60px 0;
  }
  .services-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  .section-title {
    font-size: clamp(1.8rem, 6vw, 2.6rem);
    margin-bottom: 2.5rem;
  }

  /* ── Contact form ── */
  .container {
    padding: 0 20px;
  }
  .contact-form {
    padding: 1.5rem;
    margin-top: 2.5rem;
  }

  /* ── Calculator ── */
  .calculator-section {
    padding: 60px 0;
  }
  .calculator-card {
    padding: 1.5rem;
    border-radius: 18px;
  }
  .calc-results {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }
  .calc-slider-row {
    flex-wrap: wrap;
    gap: 0.75rem;
  }

  /* ── Footer ── */
  .footer {
    padding: 50px 0 0;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  /* ── GDPR banner ── */
  .gdpr-banner {
    flex-direction: column;
    text-align: center;
    padding: 1.2rem;
  }
}

/* ══════════════════════════════════════════
   RESPONSIVE — SMALL PHONE  ≤480px
══════════════════════════════════════════ */
@media (max-width: 480px) {

  .navbar {
    padding: 0 16px;
  }
  .nav-logo {
    height: 32px;
  }
  .nav-cta {
    display: none; /* navbar is just logo + lang on tiny screens */
  }
  .lang-btn {
    font-size: 0.72rem;
    padding: 0.28rem 0.48rem;
    min-width: unset;
  }

  .hero-sun {
    width: 36px;
    height: 36px;
  }
  .hero-title {
    font-size: clamp(2.8rem, 15vw, 5rem);
  }
  .hero-subtitle {
    font-size: 0.97rem;
  }

  .carousel-slide img {
    height: clamp(240px, 78vw, 320px);
    object-position: center 55%;
  }
  .carousel-btn {
    width: 34px;
    height: 34px;
    font-size: 1.2rem;
  }

  .stats-grid {
    gap: 1.2rem 0.6rem;
  }
  .stat-number {
    font-size: clamp(2.2rem, 8vw, 3.5rem);
  }

  .service-card {
    padding: 1.8rem 1.4rem;
  }

  .calculator-card {
    padding: 1.2rem;
    border-radius: 14px;
  }
  .calc-bill-value {
    font-size: 1.5rem;
    min-width: 55px;
  }
}

/* ══════════════════════════════════════════
   TOUCH DEVICES — disable mouse-only effects
══════════════════════════════════════════ */
@media (hover: none) {
  body.solar-cursor,
  body.solar-cursor * {
    cursor: auto !important;
  }
  #sun-cursor-icon { display: none !important; }
  #sun-cursor      { display: none !important; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}