/* =========================================================
   SunVolt Energy — Stylesheet
   Table of contents:
   1. Variables & Reset
   2. Base / Typography
   3. Layout helpers
   4. Buttons
   5. Header / Navigation
   6. Hero
   7. Trust section
   8. Benefits
   9. How it works (timeline)
   10. Solutions
   11. Projects
   12. Testimonials
   13. FAQ
   14. Contact / Lead form
   15. Footer
   16. Scroll animations
   17. Responsive breakpoints
   ========================================================= */

/* ---------- 1. Variables & Reset ---------- */
:root {
  --color-green-900: #12281e;
  --color-green-800: #173b2c;
  --color-green-700: #1f5a3d;
  --color-green-600: #24704a;
  --color-green-500: #2f8f5b;
  --color-green-400: #3aa86b;
  --color-green-100: #e6f4ea;
  --color-green-50: #f2f9f4;

  --color-yellow-500: #ffcf3f;
  --color-yellow-400: #ffe27a;
  --color-yellow-100: #fff7e0;

  --color-ink: #12211a;
  --color-body: #3d4d45;
  --color-muted: #6b7a71;
  --color-border: #e1eae3;
  --color-surface: #ffffff;
  --color-surface-alt: #f7faf8;

  --shadow-sm: 0 2px 8px rgba(18, 40, 30, 0.06);
  --shadow-md: 0 8px 24px rgba(18, 40, 30, 0.1);
  --shadow-lg: 0 20px 48px rgba(18, 40, 30, 0.16);

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --radius-pill: 999px;

  --font-heading: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --font-body: "Segoe UI", "Helvetica Neue", Arial, sans-serif;

  --container-width: 1200px;
  --transition-base: 0.25s ease;
  --header-height: 84px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-body);
  background: var(--color-surface);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

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

ul,
ol {
  list-style: none;
  margin: 0;
  padding: 0;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  color: var(--color-ink);
  line-height: 1.2;
  margin: 0 0 0.6em;
  font-weight: 700;
}

p {
  margin: 0 0 1em;
}

button {
  font-family: inherit;
  cursor: pointer;
}

input,
select {
  font-family: inherit;
  font-size: 1rem;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: auto;
  background: var(--color-green-700);
  color: #fff;
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  z-index: 1000;
}

.skip-link:focus {
  left: 16px;
  top: 16px;
}

/* ---------- 3. Layout helpers ---------- */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

section {
  padding: 96px 0;
}

.section-heading {
  max-width: 640px;
  margin: 0 auto 56px;
  text-align: center;
}

.section-heading h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
}

.section-subtitle {
  color: var(--color-muted);
  font-size: 1.05rem;
}

.eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-green-600);
  background: var(--color-green-100);
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  margin: 0 0 16px;
}

.eyebrow-light {
  color: var(--color-yellow-500);
  background: rgba(255, 255, 255, 0.12);
}

/* ---------- 4. Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: 0.95rem;
  border: 2px solid transparent;
  transition: transform var(--transition-base), box-shadow var(--transition-base),
    background-color var(--transition-base), color var(--transition-base);
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-green-600);
  color: #fff;
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background: var(--color-green-700);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background: transparent;
  border-color: var(--color-border);
  color: var(--color-ink);
}

.btn-outline:hover {
  border-color: var(--color-green-600);
  color: var(--color-green-700);
  transform: translateY(-2px);
}

.btn-lg {
  padding: 16px 34px;
  font-size: 1rem;
}

.btn-block {
  width: 100%;
}

/* ---------- 5. Header / Navigation ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 500;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition-base);
}

.site-header.is-scrolled {
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.2rem;
  color: var(--color-ink);
  flex-shrink: 0;
}

.logo-mark {
  border-radius: 50%;
}

.logo-accent {
  color: var(--color-green-600);
}

.main-nav {
  flex: 1;
  display: flex;
  justify-content: center;
}

.nav-list {
  display: flex;
  gap: 32px;
}

.nav-link {
  position: relative;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-body);
  padding: 6px 2px;
  transition: color var(--transition-base);
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 2px;
  background: var(--color-green-600);
  transition: width var(--transition-base);
}

.nav-link:hover {
  color: var(--color-green-700);
}

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

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}

.menu-toggle span {
  display: block;
  height: 2px;
  background: var(--color-ink);
  margin: 0 8px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.menu-toggle.is-open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle.is-open span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.is-open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---------- 6. Hero ---------- */
.hero {
  padding: 72px 0 120px;
  background: radial-gradient(circle at 85% 10%, var(--color-yellow-100), transparent 55%),
    linear-gradient(180deg, var(--color-green-50) 0%, #ffffff 70%);
  overflow: hidden;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: 56px;
}

.hero-title {
  font-size: clamp(2.2rem, 4.2vw, 3.4rem);
  letter-spacing: -0.01em;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--color-muted);
  max-width: 520px;
}

.hero-cta-group {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin: 32px 0;
}

.hero-trust-list {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-green-700);
}

.hero-trust-list li::before {
  content: "✓ ";
  color: var(--color-green-500);
}

.hero-visual {
  position: relative;
}

.hero-image-frame {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: visible;
}

.hero-image {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.floating-card {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 10px;
  background: #fff;
  padding: 14px 18px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  font-family: var(--font-heading);
  animation: float 5s ease-in-out infinite;
}

.floating-card strong {
  display: block;
  font-size: 1.1rem;
  color: var(--color-ink);
}

.floating-card span {
  font-size: 0.78rem;
  color: var(--color-muted);
}

.floating-card-icon {
  font-size: 1.3rem;
}

.card-savings {
  top: 6%;
  left: -8%;
  animation-delay: 0s;
}

.card-installs {
  bottom: 18%;
  right: -10%;
  animation-delay: 1.2s;
}

.card-warranty {
  bottom: -6%;
  left: 8%;
  animation-delay: 2.4s;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* ---------- 7. Trust section ---------- */
.trust-section {
  padding: 64px 0;
  background: var(--color-surface-alt);
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.trust-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 32px 24px;
  text-align: center;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.trust-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: transparent;
}

.trust-icon {
  font-size: 2rem;
  display: inline-block;
  margin-bottom: 14px;
}

.trust-card h3 {
  font-size: 1.05rem;
  margin-bottom: 8px;
}

.trust-card p {
  font-size: 0.9rem;
  color: var(--color-muted);
  margin: 0;
}

/* ---------- 8. Benefits ---------- */
.benefits-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
}

.benefit-card {
  background: var(--color-surface-alt);
  border-radius: var(--radius-md);
  padding: 30px 22px;
  text-align: left;
  transition: transform var(--transition-base), box-shadow var(--transition-base), background var(--transition-base);
}

.benefit-card:hover {
  background: #fff;
  box-shadow: var(--shadow-md);
  transform: translateY(-6px);
}

.benefit-icon {
  font-size: 1.8rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  background: var(--color-green-100);
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
}

.benefit-card h3 {
  font-size: 1.05rem;
}

.benefit-card p {
  font-size: 0.9rem;
  color: var(--color-muted);
  margin: 0;
}

/* ---------- 9. How it works (timeline) ---------- */
.process-section {
  background: var(--color-green-900);
  color: #fff;
}

.process-section .eyebrow {
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-yellow-500);
}

.process-section h2 {
  color: #fff;
}

.process-section .section-subtitle {
  color: rgba(255, 255, 255, 0.65);
}

.timeline {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 24px;
  counter-reset: step;
  position: relative;
}

.timeline-step {
  position: relative;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  padding: 28px 20px;
  transition: background var(--transition-base), transform var(--transition-base);
}

.timeline-step:hover {
  background: rgba(255, 255, 255, 0.09);
  transform: translateY(-6px);
}

.timeline-number {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--color-green-900);
  background: var(--color-yellow-500);
  width: 34px;
  height: 34px;
  line-height: 34px;
  text-align: center;
  border-radius: 50%;
  margin-bottom: 16px;
}

.timeline-step h3 {
  color: #fff;
  font-size: 1rem;
}

.timeline-step p {
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.88rem;
  margin: 0;
}

/* ---------- 10. Solutions ---------- */
.solutions-section {
  background: var(--color-surface-alt);
}

.solutions-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.solution-card {
  background: #fff;
  border-radius: var(--radius-md);
  padding: 32px 24px;
  border: 1px solid var(--color-border);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.solution-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: transparent;
}

.solution-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.solution-card h3 {
  font-size: 1.05rem;
}

.solution-card p {
  font-size: 0.9rem;
  color: var(--color-muted);
}

.card-link {
  display: inline-block;
  font-weight: 700;
  font-size: 0.88rem;
  color: var(--color-green-600);
  margin-top: 6px;
  transition: transform var(--transition-base);
}

.card-link:hover {
  transform: translateX(4px);
}

/* ---------- 11. Projects ---------- */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.project-card {
  background: #fff;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.project-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.project-image {
  overflow: hidden;
}

.project-image img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.project-card:hover .project-image img {
  transform: scale(1.06);
}

.project-details {
  padding: 22px;
}

.project-details h3 {
  font-size: 1.05rem;
  margin-bottom: 4px;
}

.project-location {
  color: var(--color-muted);
  font-size: 0.88rem;
  margin-bottom: 16px;
}

.project-stats {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 0.82rem;
  color: var(--color-muted);
  border-top: 1px dashed var(--color-border);
  padding-top: 14px;
}

.project-stats strong {
  display: block;
  color: var(--color-ink);
  font-size: 0.98rem;
}

/* ---------- 12. Testimonials ---------- */
.testimonials-section {
  background: var(--color-surface-alt);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.testimonial-card {
  background: #fff;
  border-radius: var(--radius-md);
  padding: 32px 26px;
  margin: 0;
  border: 1px solid var(--color-border);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.testimonial-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.stars {
  color: var(--color-yellow-500);
  letter-spacing: 2px;
  margin-bottom: 12px;
}

.testimonial-text {
  font-size: 0.95rem;
  color: var(--color-body);
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-green-100);
  color: var(--color-green-700);
  font-weight: 700;
  font-size: 0.85rem;
}

.testimonial-author cite {
  display: block;
  font-style: normal;
  font-weight: 700;
  color: var(--color-ink);
  font-size: 0.92rem;
}

.testimonial-role {
  font-size: 0.8rem;
  color: var(--color-muted);
}

/* ---------- 13. FAQ ---------- */
.faq-list {
  max-width: 760px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
}

.faq-item h3 {
  margin: 0;
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: transparent;
  border: none;
  text-align: left;
  padding: 22px 4px;
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--color-ink);
}

.faq-icon {
  flex-shrink: 0;
  width: 30px;
  height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--color-green-100);
  color: var(--color-green-700);
  font-size: 1.2rem;
  transition: transform var(--transition-base), background var(--transition-base);
}

.faq-question[aria-expanded="true"] .faq-icon {
  transform: rotate(45deg);
  background: var(--color-green-600);
  color: #fff;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base) ease, opacity var(--transition-base) ease;
  opacity: 0;
}

.faq-answer p {
  padding: 0 4px 22px;
  color: var(--color-muted);
  font-size: 0.94rem;
}

.faq-item.is-open .faq-answer {
  opacity: 1;
}

/* ---------- 14. Contact / Lead form ---------- */
.contact-section {
  background: linear-gradient(135deg, var(--color-green-900) 0%, var(--color-green-700) 100%);
  color: #fff;
}

.contact-inner {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
  align-items: start;
}

.contact-section h2 {
  color: #fff;
  font-size: clamp(1.8rem, 3vw, 2.4rem);
}

.contact-section > .container > .contact-info > p {
  color: rgba(255, 255, 255, 0.75);
  max-width: 440px;
}

.contact-points {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 32px;
  font-weight: 600;
}

.lead-form {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-lg);
  color: var(--color-body);
}

.form-title {
  font-size: 1.3rem;
  margin-bottom: 22px;
}

.form-row {
  margin-bottom: 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-row label {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-ink);
}

.form-row input,
.form-row select {
  padding: 12px 14px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
  background: #fff;
  color: var(--color-ink);
}

.form-row input:focus,
.form-row select:focus {
  outline: none;
  border-color: var(--color-green-500);
  box-shadow: 0 0 0 4px rgba(47, 143, 91, 0.14);
}

.form-row.has-error input,
.form-row.has-error select {
  border-color: #d94f4f;
}

.form-error {
  min-height: 16px;
  font-size: 0.78rem;
  color: #d94f4f;
}

.form-disclaimer {
  font-size: 0.78rem;
  color: var(--color-muted);
  text-align: center;
  margin: 14px 0 0;
}

.form-success {
  margin-top: 16px;
  background: var(--color-green-100);
  color: var(--color-green-700);
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  text-align: center;
}

/* ---------- 15. Footer ---------- */
.site-footer {
  background: var(--color-green-900);
  color: rgba(255, 255, 255, 0.75);
  padding: 72px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 56px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand .logo {
  color: #fff;
  margin-bottom: 14px;
}

.footer-brand p {
  font-size: 0.9rem;
  max-width: 320px;
}

.social-links {
  display: flex;
  gap: 10px;
  margin-top: 18px;
}

.social-links a {
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  font-size: 0.78rem;
  font-weight: 700;
  transition: background var(--transition-base), transform var(--transition-base);
}

.social-links a:hover {
  background: var(--color-green-500);
  transform: translateY(-3px);
}

.footer-col h4 {
  color: #fff;
  font-size: 0.95rem;
  margin-bottom: 18px;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 0.9rem;
}

.footer-col a {
  transition: color var(--transition-base);
}

.footer-col a:hover {
  color: var(--color-yellow-500);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 0;
  font-size: 0.82rem;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-legal {
  display: flex;
  gap: 20px;
}

.footer-legal a:hover {
  color: var(--color-yellow-500);
}

/* ---------- 16. Scroll animations & back-to-top ---------- */
[data-animate] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

[data-animate="fade-in"] {
  transform: translateY(0);
}

[data-animate="pop"] {
  transform: translateY(0) scale(0.85);
}

[data-animate].is-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.back-to-top {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: none;
  background: var(--color-green-600);
  color: #fff;
  font-size: 1.2rem;
  box-shadow: var(--shadow-md);
  z-index: 400;
  transition: transform var(--transition-base), opacity var(--transition-base), background var(--transition-base);
}

.back-to-top:hover {
  background: var(--color-green-700);
  transform: translateY(-4px);
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  [data-animate] {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .floating-card {
    animation: none;
  }
}

/* ---------- 17. Responsive breakpoints ---------- */
@media (max-width: 1080px) {
  .benefits-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .timeline {
    grid-template-columns: repeat(3, 1fr);
  }
  .trust-grid,
  .solutions-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 960px) {
  .main-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid var(--color-border);
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-base) ease;
    z-index: 400;
  }

  .main-nav.is-open {
    max-height: 480px;
    box-shadow: var(--shadow-md);
  }

  .nav-list {
    flex-direction: column;
    gap: 0;
    padding: 8px 24px 20px;
  }

  .nav-list li {
    border-bottom: 1px solid var(--color-border);
  }

  .nav-link {
    display: block;
    padding: 14px 2px;
  }

  .header-actions .btn-primary {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

  .hero-inner {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    order: -1;
  }

  .hero-image-frame {
    max-width: 480px;
    margin: 0 auto;
  }

  .contact-inner {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  section {
    padding: 64px 0;
  }

  .trust-grid {
    grid-template-columns: 1fr 1fr;
  }

  .benefits-grid {
    grid-template-columns: 1fr 1fr;
  }

  .timeline {
    grid-template-columns: 1fr;
  }

  .solutions-grid {
    grid-template-columns: 1fr;
  }

  .projects-grid,
  .testimonials-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .floating-card {
    padding: 10px 14px;
  }

  .card-savings,
  .card-installs,
  .card-warranty {
    position: static;
    margin: 12px auto 0;
    width: fit-content;
    animation: none;
  }

  .hero-image-frame {
    display: flex;
    flex-direction: column;
    align-items: center;
  }
}

@media (max-width: 520px) {
  .container {
    padding: 0 18px;
  }

  .hero {
    padding: 48px 0 72px;
  }

  .hero-cta-group {
    flex-direction: column;
  }

  .hero-cta-group .btn {
    width: 100%;
  }

  .trust-grid,
  .benefits-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .lead-form {
    padding: 26px 20px;
  }
}