/* ============================================================
   footer.css — KRITA Renewables
   Dark multi-column footer: 2fr 1fr 1fr 1.5fr
   Premium: accent hover, tight typography
   ============================================================ */

.footer {
  background: #4ADE9F;
  color: #0b1120;
  padding: var(--sp-16) 0 var(--sp-8);
  border-top: none;
}

/* Logo inside brand column — top-aligns with other column headings */
.footer-brand .logo-icon {
  height: 150px;
  display: block;
  margin-bottom: var(--sp-6);
  transition: all .3s var(--ease);
  filter: drop-shadow(0 4px 16px rgba(11, 17, 32, 0.25));
}

.footer-brand .logo-icon:hover {
  transform: scale(1.03);
  filter: drop-shadow(0 6px 20px rgba(11, 17, 32, 0.35));
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.5fr;
  gap: 3rem;
  margin-bottom: var(--sp-12);
  align-items: start;
}

/* Brand description — sits below the logo */
.footer-brand p {
  color: rgba(11, 17, 32, 0.7);
  font-size: .9rem;
  line-height: 1.7;
}

/* Column headings */
.footer h4 {
  font-size: .85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: #0b1120;
  margin-bottom: var(--sp-5);
}

/* Links */
.footer ul li { margin-bottom: var(--sp-3); }

.footer ul a {
  color: rgba(11, 17, 32, 0.7);
  font-size: .9rem;
  transition: color .3s var(--ease);
}

.footer ul a:hover { color: #0b1120; }

/* Contact text */
.footer-contact p {
  color: rgba(11, 17, 32, 0.7);
  margin-bottom: var(--sp-3);
  font-size: .9rem;
}

/* Bottom bar */
.footer-bottom {
  border-top: 1px solid rgba(11, 17, 32, 0.15);
  padding-top: var(--sp-8);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: .8rem;
  color: rgba(11, 17, 32, 0.55);
}

/* Social icons */
.footer-socials { display: flex; gap: var(--sp-3); }

.social-link {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(11, 17, 32, 0.1);
  border: 1px solid rgba(11, 17, 32, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #0b1120;
  transition: all .3s var(--ease);
}

.social-link:hover {
  background: #0b1120;
  color: #4ADE9F;
  border-color: #0b1120;
  transform: translateY(-2px);
}

/* Final CTA section */
.final-cta {
  position: relative;
  padding: var(--sp-24) 0;
  overflow: hidden;
}

.final-cta-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.final-cta-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.final-cta-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(11,17,32,.88) 0%, rgba(11,17,32,.75) 50%, rgba(11,17,32,.65) 100%);
}

.final-cta::before {
  content: '';
  position: absolute;
  top: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(0, 192, 165, .08), transparent 70%);
  pointer-events: none;
  z-index: 1;
}

.final-cta-inner {
  text-align: left;
  color: #fff;
  position: relative;
  z-index: 2;
  max-width: 600px;
}

.final-cta h2 {
  font-size: clamp(2rem,4vw,3rem);
  margin-bottom: var(--sp-4);
}

.final-cta p {
  color: rgba(255,255,255,.5);
  font-size: 1.1rem;
  max-width: 500px;
  margin-bottom: var(--sp-10);
}

.final-cta .btn-group {
  display: flex;
  gap: var(--sp-4);
  flex-wrap: wrap;
}

/* Testimonials */
.testimonials-track {
  display: grid;
  grid-template-columns: 1.1fr 1fr 0.9fr;
  gap: var(--sp-6);
}

.testimonial-card:nth-child(2) { margin-top: 24px; }
.testimonial-card:nth-child(3) { margin-top: 12px; }

.testimonial-card {
  background: var(--clr-white);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: var(--sp-8);
  transition: all .3s var(--ease);
}

.testimonial-card:hover {
  border-color: var(--clr-primary);
  box-shadow: var(--shadow-md);
}

.testimonial-stars {
  display: flex;
  gap: 2px;
  color: var(--clr-accent);
  margin-bottom: var(--sp-4);
}

.testimonial-text {
  font-size: .95rem;
  color: var(--clr-text-muted);
  line-height: 1.7;
  margin-bottom: var(--sp-6);
  font-style: italic;
}

.testimonial-author { display: flex; align-items: center; gap: var(--sp-3); }

.testimonial-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, #488aed, #283c5a);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 1rem;
}

.testimonial-name { font-weight: 600; font-size: .9rem; }
.testimonial-role { font-size: .8rem; color: var(--clr-text-muted); }

/* Calculator */
.calc-wrapper {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--sp-16);
  align-items: start;
}

.calc-left h2 { font-size: 2.2rem; margin-bottom: var(--sp-4); }
.calc-left > p { color: var(--clr-text-muted); margin-bottom: var(--sp-10); font-size: 1.05rem; }

.calc-input-group { margin-bottom: var(--sp-8); }
.calc-input-group label {
  display: block;
  font-weight: 600;
  font-size: .85rem;
  color: var(--clr-text-muted);
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-bottom: var(--sp-3);
}

.range-slider {
  -webkit-appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--clr-primary) 0%, #e2e8f0 0%);
  outline: none;
  margin: var(--sp-4) 0;
}
.range-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--clr-primary);
  cursor: pointer;
  box-shadow: 0 0 0 4px rgba(0, 192, 165, .2);
  transition: box-shadow .2s;
}
.range-slider::-webkit-slider-thumb:hover { box-shadow: 0 0 0 8px rgba(0, 192, 165, .15); }

.bill-display {
  font-family: var(--font-heading);
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--clr-text);
  margin-top: var(--sp-2);
}
.bill-display .currency { font-size: 1.6rem; color: var(--clr-text-muted); font-weight: 600; }

.calc-panel {
  background: var(--clr-secondary);
  color: #fff;
  border-radius: var(--radius-xl);
  padding: var(--sp-10);
  position: relative;
  overflow: hidden;
}
.calc-panel::before {
  content: '';
  position: absolute;
  top: -60%; right: -40%;
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(0, 192, 165, .15), transparent 70%);
  pointer-events: none;
}
.calc-panel h3 { font-size: 1.3rem; color: rgba(255,255,255,.6); font-weight: 600; margin-bottom: var(--sp-8); }

.result-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--sp-5) 0;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.result-row:last-of-type { border-bottom: none; }
.result-label { font-size: .9rem; color: rgba(255,255,255,.5); }
.result-value { font-family: var(--font-heading); font-size: 1.5rem; font-weight: 700; }
.result-value.highlight { color: var(--clr-primary); font-size: 1.8rem; }
.calc-note { font-size: .8rem; color: var(--clr-text-muted); margin-top: var(--sp-4); }

.calc-select {
  width: 100%;
  padding: 14px 16px;
  border: 2px solid var(--clr-border);
  border-radius: var(--radius-sm);
  font-size: .95rem;
  font-weight: 500;
  color: var(--clr-text);
  background: var(--clr-white);
  cursor: pointer;
  transition: all .3s var(--ease);
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%2364748B' stroke-width='2' fill='none'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
}
.calc-select:focus {
  outline: none;
  border-color: var(--clr-primary);
  box-shadow: 0 0 0 3px var(--clr-primary-glow);
}