/* ----- RESET & BASE (mobile-first) ----- */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  -webkit-tap-highlight-color: transparent;
}
body {
  font-family: 'Poppins', sans-serif;
  background: #f8fafc;
  color: #1e293b;
  line-height: 1.6;
  overflow-x: hidden;
}
img {
  max-width: 100%;
  display: block;
  height: auto;
}
a {
  text-decoration: none;
  color: inherit;
}
ul {
  list-style: none;
}
.container {
  width: 100%;
  max-width: 1200px;
  padding: 0 16px;
  margin: 0 auto;
}
@media (min-width: 768px) {
  .container {
    padding: 0 24px;
  }
}
@media (min-width: 1024px) {
  .container {
    padding: 0 32px;
  }
}

/* ----- VARIABLES ----- */
:root {
  --primary-blue: #2563eb;
  --dark-blue: #1d4ed8;
  --light-blue: #dbeafe;
  --accent-blue: #3b82f6;
  --white: #ffffff;
  --off-white: #f8fafc;
  --light-gray: #f1f5f9;
  --medium-gray: #e2e8f0;
  --dark-gray: #64748b;
  --text-dark: #1e293b;
  --success-green: #10b981;
  --warning-yellow: #f59e0b;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.08);
  --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.1);
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --radius: 12px;
  --radius-lg: 20px;
}

/* ----- ANIMATIONS ----- */
.animate-text,
.animate-image,
.animate-header,
.animate-card,
.animate-left,
.animate-right {
  opacity: 0;
  animation-duration: 0.8s;
  animation-fill-mode: forwards;
}
.animate-text {
  animation-name: fadeInUp;
}
.animate-image {
  animation-name: fadeInScale;
  animation-delay: 0.2s;
}
.animate-header {
  animation-name: fadeInUp;
}
.animate-card {
  animation-name: fadeInUp;
}
.animate-left {
  animation-name: slideInLeft;
}
.animate-right {
  animation-name: slideInRight;
}
@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@keyframes fadeInScale {
  to {
    opacity: 1;
    transform: scale(1);
  }
}
@keyframes slideInLeft {
  to {
    opacity: 1;
    transform: translateX(0);
  }
}
@keyframes slideInRight {
  to {
    opacity: 1;
    transform: translateX(0);
  }
}
@keyframes bounce {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}
@keyframes pulseGlow {
  0%,
  100% {
    box-shadow: 0 20px 40px rgba(37, 99, 235, 0.3);
  }
  50% {
    box-shadow: 0 20px 60px rgba(37, 99, 235, 0.5);
  }
}
@keyframes spin {
  0% {
    transform: rotate(0);
  }
  100% {
    transform: rotate(360deg);
  }
}
@keyframes highlightExpand {
  to {
    transform: scaleX(1);
  }
}
@keyframes ripple {
  to {
    transform: scale(4);
    opacity: 0;
  }
}

/* ----- NAVIGATION (mobile-first) ----- */
.navbar {
  background: var(--white);
  box-shadow: var(--shadow-sm);
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 999;
  padding: 10px 0;
  transition: var(--transition);
}
.nav-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
}
.logo {
  display: flex;
  align-items: center;
  gap: 8px;
}
.logo-icon img {
  width: 36px;
  height: 36px;
  object-fit: contain;
}
@media (min-width: 768px) {
  .logo-icon img {
    width: 44px;
    height: 44px;
  }
}
.logo-text h1 {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-dark);
  line-height: 1.2;
}
.logo-text p {
  font-size: 9px;
  color: var(--dark-gray);
  font-weight: 500;
}
@media (min-width: 768px) {
  .logo-text h1 {
    font-size: 18px;
  }
  .logo-text p {
    font-size: 11px;
  }
}
.nav-menu {
  display: flex;
  align-items: center;
  gap: 12px;
}
.nav-links {
  display: none;
  flex-direction: column;
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  background: var(--white);
  padding: 16px 20px;
  box-shadow: var(--shadow-lg);
  gap: 6px;
}
.nav-links.active {
  display: flex;
}
@media (min-width: 992px) {
  .nav-links {
    display: flex !important;
    flex-direction: row;
    position: static;
    width: auto;
    padding: 0;
    box-shadow: none;
    gap: 8px;
    background: transparent;
  }
}
.nav-links a {
  padding: 8px 12px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-dark);
  transition: var(--transition);
  border-radius: 8px;
  display: block;
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--primary-blue);
  background: var(--light-blue);
}
.dropdown {
  position: relative;
}
.dropdown-content {
  display: none;
  flex-direction: column;
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  padding: 8px 0;
  min-width: 180px;
}
@media (min-width: 992px) {
  .dropdown:hover .dropdown-content {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0;
    z-index: 100;
  }
}
.dropdown-content a {
  padding: 8px 20px;
  font-size: 13px;
}
.dropdown-content a:hover {
  background: var(--light-blue);
}
.btn-signup {
  display: none;
  background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
  color: var(--white);
  padding: 8px 18px;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 600;
  transition: var(--transition);
  white-space: nowrap;
}
.btn-signup:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.3);
}
@media (min-width: 992px) {
  .btn-signup {
    display: inline-flex;
  }
}
.hamburger {
  display: flex;
  flex-direction: column;
  gap: 4px;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  width: 24px;
  height: 2px;
  background: var(--text-dark);
  border-radius: 2px;
  transition: var(--transition);
}
.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(4px, 4px);
}
.hamburger.active span:nth-child(2) {
  opacity: 0;
}
.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(4px, -4px);
}
@media (min-width: 992px) {
  .hamburger {
    display: none;
  }
}

/* ----- HERO (mobile-first) ----- */
.residential-hero {
  padding: 100px 0 60px;
  background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
  position: relative;
  overflow: hidden;
  margin-top: 60px;
}
@media (min-width: 768px) {
  .residential-hero {
    padding: 140px 0 80px;
    margin-top: 70px;
  }
}
.hero-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: center;
}
@media (min-width: 992px) {
  .hero-content {
    grid-template-columns: 1fr 1fr;
    gap: 48px;
  }
}
.hero-title {
  font-size: 28px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 12px;
  line-height: 1.2;
}
@media (min-width: 576px) {
  .hero-title {
    font-size: 34px;
  }
}
@media (min-width: 768px) {
  .hero-title {
    font-size: 40px;
  }
}
@media (min-width: 1024px) {
  .hero-title {
    font-size: 48px;
  }
}
.hero-title .highlight {
  background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-title .highlight::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--primary-blue), var(--dark-blue));
  border-radius: 2px;
}
.hero-subtitle {
  font-size: 16px;
  color: var(--dark-gray);
  margin-bottom: 20px;
  line-height: 1.6;
}
@media (min-width: 768px) {
  .hero-subtitle {
    font-size: 18px;
  }
}
.hero-stats {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 20px;
}
@media (min-width: 576px) {
  .hero-stats {
    flex-direction: row;
    gap: 24px;
  }
}
.stat-number {
  font-size: 32px;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
@media (min-width: 768px) {
  .stat-number {
    font-size: 40px;
  }
}
.stat-label {
  font-size: 12px;
  color: var(--dark-gray);
  font-weight: 500;
}
@media (min-width: 768px) {
  .stat-label {
    font-size: 14px;
  }
}
.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--white);
  padding: 8px 16px;
  border-radius: 50px;
  box-shadow: var(--shadow-sm);
  border: 2px solid var(--medium-gray);
  transition: var(--transition);
  font-size: 12px;
}
@media (min-width: 768px) {
  .badge {
    padding: 10px 20px;
    font-size: 14px;
  }
}
.badge i {
  color: var(--primary-blue);
  font-size: 16px;
}
@media (min-width: 768px) {
  .badge i {
    font-size: 18px;
  }
}
.badge span {
  font-weight: 600;
  color: var(--text-dark);
}
.badge:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-blue);
}

/* Hero Image */
.hero-image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  height: 260px;
}
@media (min-width: 576px) {
  .hero-image {
    height: 320px;
  }
}
@media (min-width: 768px) {
  .hero-image {
    height: 380px;
  }
}
@media (min-width: 992px) {
  .hero-image {
    height: 400px;
  }
}
.image-slider {
  position: relative;
  height: 100%;
}
.slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 1s ease;
}
.slide.active {
  opacity: 1;
}
.slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.slide-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
  padding: 16px 20px;
  color: var(--white);
}
@media (min-width: 768px) {
  .slide-overlay {
    padding: 24px 30px;
  }
}
.slide-overlay h3 {
  font-size: 18px;
  font-weight: 600;
}
@media (min-width: 768px) {
  .slide-overlay h3 {
    font-size: 22px;
  }
}
.slide-overlay p {
  font-size: 13px;
  opacity: 0.9;
}
@media (min-width: 768px) {
  .slide-overlay p {
    font-size: 15px;
  }
}
.slider-controls {
  position: absolute;
  bottom: 12px;
  right: 12px;
  display: flex;
  gap: 8px;
}
.slider-controls button {
  width: 32px;
  height: 32px;
  background: rgba(255, 255, 255, 0.9);
  border: none;
  border-radius: 50%;
  color: var(--primary-blue);
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
}
@media (min-width: 768px) {
  .slider-controls button {
    width: 40px;
    height: 40px;
    font-size: 16px;
  }
}
.slider-controls button:hover {
  background: var(--primary-blue);
  color: var(--white);
}
.hero-scroll {
  position: absolute;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
}
.scroll-down {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  color: var(--primary-blue);
  transition: var(--transition);
  font-size: 12px;
}
@media (min-width: 768px) {
  .scroll-down {
    font-size: 14px;
    gap: 8px;
  }
}
.scroll-down i {
  font-size: 20px;
  animation: bounce 2s infinite;
}
@media (min-width: 768px) {
  .scroll-down i {
    font-size: 24px;
  }
}

/* ----- PROJECT STATS (mobile-first) ----- */
.project-stats {
  padding: 40px 0;
  background: var(--white);
}
@media (min-width: 768px) {
  .project-stats {
    padding: 60px 0;
  }
}
.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
@media (min-width: 576px) {
  .stats-grid {
    gap: 20px;
  }
}
@media (min-width: 768px) {
  .stats-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
  }
}
.stat-card {
  background: var(--white);
  padding: 16px 14px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  border: 2px solid var(--light-blue);
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 12px;
}
@media (min-width: 768px) {
  .stat-card {
    padding: 24px 20px;
    gap: 16px;
  }
}
.stat-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-blue);
}
.stat-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--light-blue), var(--white));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--primary-blue);
  border: 2px solid var(--light-blue);
  flex-shrink: 0;
}
@media (min-width: 768px) {
  .stat-icon {
    width: 60px;
    height: 60px;
    font-size: 28px;
    border-radius: 16px;
  }
}
.stat-content h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-dark);
  background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
@media (min-width: 768px) {
  .stat-content h3 {
    font-size: 32px;
  }
}
.stat-content p {
  color: var(--dark-gray);
  font-size: 11px;
}
@media (min-width: 768px) {
  .stat-content p {
    font-size: 14px;
  }
}

/* ----- PROJECT STATS (mobile-first) ----- */
.project-stats {
  padding: 40px 0;
  background: var(--white);
}
@media (min-width: 768px) {
  .project-stats {
    padding: 60px 0;
  }
}
.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
@media (min-width: 576px) {
  .stats-grid {
    gap: 20px;
  }
}
@media (min-width: 768px) {
  .stats-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
  }
}
.stat-card {
  background: var(--white);
  padding: 16px 14px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  border: 2px solid var(--light-blue);
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 12px;
}
@media (min-width: 768px) {
  .stat-card {
    padding: 24px 20px;
    gap: 16px;
  }
}
.stat-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-blue);
}
.stat-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--light-blue), var(--white));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--primary-blue);
  border: 2px solid var(--light-blue);
  flex-shrink: 0;
}
@media (min-width: 768px) {
  .stat-icon {
    width: 60px;
    height: 60px;
    font-size: 28px;
    border-radius: 16px;
  }
}
.stat-content h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-dark);
  background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
@media (min-width: 768px) {
  .stat-content h3 {
    font-size: 32px;
  }
}
.stat-content p {
  color: var(--dark-gray);
  font-size: 11px;
}
@media (min-width: 768px) {
  .stat-content p {
    font-size: 14px;
  }
}

/* ----- FEATURED PROJECTS (mobile-first) ----- */
.featured-projects {
  padding: 50px 0;
  background: var(--off-white);
}
@media (min-width: 768px) {
  .featured-projects {
    padding: 80px 0;
  }
}

.section-header {
  text-align: center;
  margin-bottom: 30px;
}
@media (min-width: 768px) {
  .section-header {
    margin-bottom: 40px;
  }
}
.section-header h2 {
  font-size: 26px;
  color: var(--text-dark);
  margin-bottom: 8px;
  font-weight: 700;
}
@media (min-width: 576px) {
  .section-header h2 {
    font-size: 30px;
  }
}
@media (min-width: 768px) {
  .section-header h2 {
    font-size: 36px;
  }
}
@media (min-width: 1024px) {
  .section-header h2 {
    font-size: 42px;
  }
}
.section-header .highlight {
  color: var(--primary-blue);
}
.section-description {
  font-size: 14px;
  color: var(--dark-gray);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.6;
}
@media (min-width: 768px) {
  .section-description {
    font-size: 16px;
  }
}

/* ----- PROJECTS FILTER ----- */
.projects-filter {
  display: flex;
  gap: 6px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 24px;
}
@media (min-width: 576px) {
  .projects-filter {
    gap: 8px;
  }
}
@media (min-width: 768px) {
  .projects-filter {
    gap: 10px;
    margin-bottom: 32px;
  }
}
.filter-btn {
  padding: 8px 14px;
  background: var(--white);
  border: 2px solid var(--medium-gray);
  border-radius: 50px;
  color: var(--dark-gray);
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  font-size: 11px;
}
@media (min-width: 576px) {
  .filter-btn {
    padding: 10px 18px;
    font-size: 13px;
  }
}
@media (min-width: 768px) {
  .filter-btn {
    padding: 12px 24px;
    font-size: 14px;
  }
}
.filter-btn.active {
  background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
  color: var(--white);
  border-color: var(--primary-blue);
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.2);
}
.filter-btn:hover:not(.active) {
  border-color: var(--primary-blue);
  color: var(--primary-blue);
}

/* ----- PROJECTS GRID ----- */
.projects-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 30px;
}
@media (min-width: 576px) {
  .projects-grid {
    gap: 20px;
  }
}
@media (min-width: 768px) {
  .projects-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }
}
@media (min-width: 1024px) {
  .projects-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
  }
}
@media (min-width: 1200px) {
  .projects-grid {
    grid-template-columns: repeat(5, 1fr);
    gap: 24px;
  }
}

/* ----- PROJECT CARD (Simplified) ----- */
.project-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  border: 2px solid var(--light-gray);
}
.project-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-blue);
}

.project-image {
  position: relative;
  height: 180px;
  overflow: hidden;
  background: var(--light-gray);
}
@media (min-width: 576px) {
  .project-image {
    height: 200px;
  }
}
@media (min-width: 768px) {
  .project-image {
    height: 220px;
  }
}
.project-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}
.project-card:hover .project-image img {
  transform: scale(1.05);
}

.project-content {
  padding: 12px 14px;
}
@media (min-width: 768px) {
  .project-content {
    padding: 14px 18px;
  }
}

.project-meta {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
@media (min-width: 576px) {
  .project-meta {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    gap: 6px;
  }
}

.project-type {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-dark);
}
@media (min-width: 768px) {
  .project-type {
    font-size: 14px;
  }
}
.project-type i {
  color: var(--primary-blue);
  font-size: 14px;
}

.project-location {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  color: var(--dark-gray);
}
@media (min-width: 768px) {
  .project-location {
    font-size: 13px;
  }
}
.project-location i {
  color: var(--primary-blue);
  font-size: 12px;
}

/* ----- LOAD MORE ----- */
.load-more {
  text-align: center;
}
.btn-load-more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
  color: var(--white);
  border: none;
  border-radius: 50px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.25);
}
@media (min-width: 768px) {
  .btn-load-more {
    padding: 14px 40px;
    font-size: 16px;
  }
}
.btn-load-more:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 28px rgba(37, 99, 235, 0.35);
  gap: 12px;
}
.btn-load-more i {
  animation: spin 2s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* ----- PROJECT OVERLAY (Removed - keeping only for modal trigger) ----- */
.project-overlay {
  display: none;
}

/* View Project button hidden - using just click on card */
.view-project {
  display: none;
}

/* But we still need it for modal trigger, so we keep it but hidden */
.view-project {
  display: none;
}

/* ----- RESPONSIVE TOUCH IMPROVEMENTS ----- */
@media (max-width: 576px) {
  .projects-grid {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }
  .project-image {
    height: 150px;
  }
  .project-content {
    padding: 10px 12px;
  }
  .project-type {
    font-size: 12px;
  }
  .project-location {
    font-size: 11px;
  }
}

@media (max-width: 400px) {
  .projects-grid {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }
  .project-image {
    height: 130px;
  }
  .project-content {
    padding: 8px 10px;
  }
  .project-type {
    font-size: 11px;
  }
  .project-location {
    font-size: 10px;
  }
}

/* ----- INSTALLATION PROCESS (mobile-first) ----- */
.installation-process {
  padding: 50px 0;
  background: var(--white);
}
@media (min-width: 768px) {
  .installation-process {
    padding: 80px 0;
  }
}
.timeline {
  position: relative;
  padding-left: 36px;
}
@media (min-width: 768px) {
  .timeline {
    padding-left: 48px;
  }
}
.timeline::before {
  content: '';
  position: absolute;
  left: 12px;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(to bottom, var(--primary-blue), var(--accent-blue));
  border-radius: 3px;
}
@media (min-width: 768px) {
  .timeline::before {
    left: 20px;
  }
}
.timeline-item {
  display: flex;
  margin-bottom: 28px;
  position: relative;
}
@media (min-width: 768px) {
  .timeline-item {
    margin-bottom: 36px;
  }
}
.timeline-item:last-child {
  margin-bottom: 0;
}
.timeline-marker {
  flex-shrink: 0;
  width: 36px;
  position: relative;
}
@media (min-width: 768px) {
  .timeline-marker {
    width: 48px;
  }
}
.marker {
  width: 28px;
  height: 28px;
  background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
  border-radius: 50%;
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 13px;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
  position: relative;
  z-index: 2;
}
@media (min-width: 768px) {
  .marker {
    width: 36px;
    height: 36px;
    font-size: 16px;
  }
}
.line {
  position: absolute;
  left: 13px;
  top: 28px;
  bottom: -28px;
  width: 2px;
  background: var(--light-blue);
}
@media (min-width: 768px) {
  .line {
    left: 17px;
    top: 36px;
    bottom: -36px;
  }
}
.timeline-item:last-child .line {
  display: none;
}
.timeline-content {
  flex: 1;
  background: var(--white);
  padding: 14px 16px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  border: 2px solid var(--light-blue);
  transition: var(--transition);
  margin-left: 8px;
}
@media (min-width: 768px) {
  .timeline-content {
    padding: 20px 24px;
    margin-left: 16px;
  }
}
.timeline-item:hover .timeline-content {
  transform: translateX(6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-blue);
}
.step-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}
@media (min-width: 768px) {
  .step-header {
    gap: 14px;
    margin-bottom: 12px;
  }
}
.step-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--light-blue), var(--white));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: var(--primary-blue);
  border: 2px solid var(--light-blue);
  flex-shrink: 0;
}
@media (min-width: 768px) {
  .step-icon {
    width: 44px;
    height: 44px;
    font-size: 20px;
  }
}
.step-header h3 {
  font-size: 16px;
  color: var(--text-dark);
  font-weight: 600;
}
@media (min-width: 768px) {
  .step-header h3 {
    font-size: 20px;
  }
}
.timeline-content p {
  color: var(--dark-gray);
  font-size: 13px;
  line-height: 1.5;
  margin-bottom: 10px;
}
@media (min-width: 768px) {
  .timeline-content p {
    font-size: 14px;
    margin-bottom: 14px;
  }
}
.step-features {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.step-features span {
  display: flex;
  align-items: center;
  gap: 4px;
  background: var(--off-white);
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 11px;
  color: var(--primary-blue);
}
@media (min-width: 768px) {
  .step-features span {
    padding: 6px 14px;
    font-size: 13px;
  }
}
.step-features i {
  font-size: 10px;
}

/* ----- SYSTEM TYPES (mobile-first) ----- */
.system-types {
  padding: 50px 0;
  background: linear-gradient(135deg, var(--off-white) 0%, var(--light-gray) 100%);
}
@media (min-width: 768px) {
  .system-types {
    padding: 80px 0;
  }
}
.systems-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}
@media (min-width: 768px) {
  .systems-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
}
@media (min-width: 992px) {
  .systems-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
  }
}
.system-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}
.system-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.system-header {
  background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
  padding: 20px;
  color: var(--white);
  position: relative;
}
@media (min-width: 768px) {
  .system-header {
    padding: 24px 28px;
  }
}
.system-icon {
  width: 44px;
  height: 44px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 12px;
}
@media (min-width: 768px) {
  .system-icon {
    width: 56px;
    height: 56px;
    font-size: 28px;
    border-radius: 14px;
  }
}
.system-header h3 {
  font-size: 18px;
  font-weight: 600;
}
@media (min-width: 768px) {
  .system-header h3 {
    font-size: 22px;
  }
}
.system-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 9px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 4px;
}
@media (min-width: 768px) {
  .system-badge {
    top: 16px;
    right: 16px;
    padding: 5px 14px;
    font-size: 11px;
  }
}
.system-badge.popular {
  background: var(--warning-yellow);
  color: var(--white);
}
.system-badge.premium {
  background: linear-gradient(135deg, #8b5cf6, #7c3aed);
  color: var(--white);
}
.system-content {
  padding: 16px;
}
@media (min-width: 768px) {
  .system-content {
    padding: 20px 24px;
  }
}
.system-content p {
  color: var(--dark-gray);
  font-size: 13px;
  line-height: 1.5;
  margin-bottom: 16px;
}
@media (min-width: 768px) {
  .system-content p {
    font-size: 14px;
  }
}
.system-features {
  margin-bottom: 16px;
}
.system-features li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-bottom: 6px;
  font-size: 12px;
}
@media (min-width: 768px) {
  .system-features li {
    font-size: 14px;
    margin-bottom: 8px;
  }
}
.system-features i {
  color: var(--success-green);
  font-size: 14px;
  margin-top: 1px;
  flex-shrink: 0;
}
.system-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 16px;
  padding: 12px;
  background: var(--off-white);
  border-radius: var(--radius);
}
@media (min-width: 768px) {
  .system-stats {
    padding: 16px 20px;
    gap: 16px;
  }
}
.system-stats .stat {
  text-align: center;
}
.stat-label {
  font-size: 10px;
  color: var(--dark-gray);
}
@media (min-width: 768px) {
  .stat-label {
    font-size: 12px;
  }
}
.stat-value {
  font-size: 16px;
  font-weight: 700;
  color: var(--primary-blue);
}
@media (min-width: 768px) {
  .stat-value {
    font-size: 18px;
  }
}
.system-btn {
  width: 100%;
  padding: 10px;
  background: transparent;
  border: 2px solid var(--primary-blue);
  border-radius: var(--radius);
  color: var(--primary-blue);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
@media (min-width: 768px) {
  .system-btn {
    padding: 14px;
    font-size: 15px;
  }
}
.system-btn:hover {
  background: var(--primary-blue);
  color: var(--white);
}

/* ----- TESTIMONIALS (mobile-first) ----- */
.testimonials {
  padding: 50px 0;
  background: var(--white);
}
@media (min-width: 768px) {
  .testimonials {
    padding: 80px 0;
  }
}
.testimonial-slider {
  position: relative;
  overflow: hidden;
  margin-bottom: 30px;
}
.testimonial-track {
  display: flex;
  gap: 16px;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}
@media (min-width: 768px) {
  .testimonial-track {
    gap: 24px;
  }
}
.testimonial-card {
  flex: 0 0 calc(100% - 0px);
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  padding: 16px;
  border: 2px solid var(--light-blue);
  transition: var(--transition);
}
@media (min-width: 576px) {
  .testimonial-card {
    flex: 0 0 calc(50% - 8px);
  }
}
@media (min-width: 992px) {
  .testimonial-card {
    flex: 0 0 calc(25% - 18px);
    padding: 20px 24px;
  }
}
.testimonial-card:hover {
  border-color: var(--primary-blue);
  box-shadow: var(--shadow-lg);
}
.testimonial-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}
@media (min-width: 768px) {
  .testimonial-header {
    gap: 14px;
  }
}
.customer-avatar {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--light-blue), var(--white));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--primary-blue);
  border: 2px solid var(--light-blue);
  flex-shrink: 0;
}
@media (min-width: 768px) {
  .customer-avatar {
    width: 56px;
    height: 56px;
    font-size: 22px;
  }
}
.customer-info h4 {
  font-size: 14px;
  color: var(--text-dark);
  font-weight: 600;
}
@media (min-width: 768px) {
  .customer-info h4 {
    font-size: 16px;
  }
}
.customer-info p {
  font-size: 12px;
  color: var(--dark-gray);
}
@media (min-width: 768px) {
  .customer-info p {
    font-size: 13px;
  }
}
.customer-rating {
  color: var(--warning-yellow);
  font-size: 12px;
}
@media (min-width: 768px) {
  .customer-rating {
    font-size: 14px;
  }
}
.testimonial-content p {
  color: var(--dark-gray);
  font-size: 13px;
  line-height: 1.5;
  font-style: italic;
  margin-bottom: 12px;
}
@media (min-width: 768px) {
  .testimonial-content p {
    font-size: 14px;
  }
}
.testimonial-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: space-between;
  padding-top: 12px;
  border-top: 1px solid var(--medium-gray);
}
.project-info,
.project-date {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: var(--dark-gray);
}
@media (min-width: 768px) {
  .project-info,
  .project-date {
    font-size: 13px;
  }
}
.project-info i,
.project-date i {
  color: var(--primary-blue);
}
.testimonial-slider .slider-controls {
  position: static;
  display: flex;
  justify-content: center;
  gap: 12px;
  padding-top: 16px;
}
.testimonial-slider .slider-controls button {
  pointer-events: auto;
  width: 40px;
  height: 40px;
  background: var(--white);
  border: 2px solid var(--primary-blue);
  border-radius: 50%;
  color: var(--primary-blue);
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}
@media (min-width: 768px) {
  .testimonial-slider .slider-controls button {
    width: 48px;
    height: 48px;
  }
}
.testimonial-slider .slider-controls button:hover {
  background: var(--primary-blue);
  color: var(--white);
}
.testimonial-stats {
  background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
  border-radius: var(--radius-lg);
  padding: 24px 16px;
  color: var(--white);
}
@media (min-width: 768px) {
  .testimonial-stats {
    padding: 32px 40px;
  }
}
.testimonial-stats .stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
@media (min-width: 576px) {
  .testimonial-stats .stats-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
  }
}
.testimonial-stats .stat-item {
  text-align: center;
  background: rgba(255, 255, 255, 0.1);
  padding: 12px;
  border-radius: var(--radius);
}
@media (min-width: 768px) {
  .testimonial-stats .stat-item {
    padding: 16px 20px;
  }
}
.testimonial-stats .stat-number {
  font-size: 28px;
  font-weight: 700;
  color: var(--white);
  -webkit-text-fill-color: var(--white);
  background: none;
}
@media (min-width: 768px) {
  .testimonial-stats .stat-number {
    font-size: 34px;
  }
}
.testimonial-stats .stat-label {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.9);
}
@media (min-width: 768px) {
  .testimonial-stats .stat-label {
    font-size: 14px;
  }
}

/* ----- SUBSIDY (mobile-first) ----- */
.subsidy-info {
  padding: 50px 0;
  background: linear-gradient(135deg, var(--off-white) 0%, var(--light-gray) 100%);
}
@media (min-width: 768px) {
  .subsidy-info {
    padding: 80px 0;
  }
}
.subsidy-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: center;
}
@media (min-width: 992px) {
  .subsidy-content {
    grid-template-columns: 1fr 1fr;
    gap: 48px;
  }
}
.subsidy-text h2 {
  font-size: 26px;
  color: var(--text-dark);
  margin-bottom: 12px;
  font-weight: 700;
  line-height: 1.2;
}
@media (min-width: 576px) {
  .subsidy-text h2 {
    font-size: 30px;
  }
}
@media (min-width: 768px) {
  .subsidy-text h2 {
    font-size: 36px;
  }
}
@media (min-width: 1024px) {
  .subsidy-text h2 {
    font-size: 42px;
  }
}
.subsidy-text h2 .highlight {
  color: var(--primary-blue);
}
.subsidy-description {
  font-size: 15px;
  color: var(--dark-gray);
  margin-bottom: 20px;
  line-height: 1.6;
}
@media (min-width: 768px) {
  .subsidy-description {
    font-size: 17px;
  }
}
.subsidy-features {
  margin-bottom: 24px;
}
.feature {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 16px;
}
@media (min-width: 768px) {
  .feature {
    gap: 18px;
  }
}
.feature-icon {
  width: 40px;
  height: 40px;
  background: var(--light-blue);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: var(--primary-blue);
  flex-shrink: 0;
}
@media (min-width: 768px) {
  .feature-icon {
    width: 48px;
    height: 48px;
    font-size: 20px;
    border-radius: 12px;
  }
}
.feature-content h4 {
  font-size: 15px;
  color: var(--text-dark);
  font-weight: 600;
}
@media (min-width: 768px) {
  .feature-content h4 {
    font-size: 17px;
  }
}
.feature-content p {
  color: var(--dark-gray);
  font-size: 13px;
  line-height: 1.5;
}
@media (min-width: 768px) {
  .feature-content p {
    font-size: 14px;
  }
}
.eligibility-check {
  background: var(--white);
  padding: 16px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  margin-bottom: 20px;
}
@media (min-width: 768px) {
  .eligibility-check {
    padding: 20px 24px;
  }
}
.eligibility-check h4 {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-dark);
  margin-bottom: 10px;
  font-size: 15px;
  font-weight: 600;
}
@media (min-width: 768px) {
  .eligibility-check h4 {
    font-size: 17px;
    gap: 10px;
  }
}
.eligibility-check h4 i {
  color: var(--primary-blue);
}
.eligibility-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.eligibility-list span {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--off-white);
  padding: 5px 12px;
  border-radius: 20px;
  font-size: 12px;
  color: var(--primary-blue);
}
@media (min-width: 768px) {
  .eligibility-list span {
    padding: 6px 16px;
    font-size: 14px;
  }
}
.subsidy-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  background: linear-gradient(135deg, var(--success-green), #059669);
  color: var(--white);
  border: none;
  border-radius: 50px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
  box-shadow: 0 8px 20px rgba(16, 185, 129, 0.3);
}
@media (min-width: 768px) {
  .subsidy-btn {
    padding: 14px 36px;
    font-size: 16px;
  }
}
.subsidy-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 28px rgba(16, 185, 129, 0.4);
  gap: 12px;
}
.subsidy-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.card-header {
  background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
  padding: 20px;
  text-align: center;
  color: var(--white);
}
@media (min-width: 768px) {
  .card-header {
    padding: 24px 30px;
  }
}
.card-header i {
  font-size: 40px;
  margin-bottom: 10px;
  animation: pulseGlow 2s infinite;
}
@media (min-width: 768px) {
  .card-header i {
    font-size: 52px;
  }
}
.card-header h3 {
  font-size: 20px;
  font-weight: 600;
}
@media (min-width: 768px) {
  .card-header h3 {
    font-size: 26px;
  }
}
.card-body {
  padding: 16px;
}
@media (min-width: 768px) {
  .card-body {
    padding: 24px;
  }
}
.calculator {
  background: var(--off-white);
  padding: 16px;
  border-radius: var(--radius);
}
@media (min-width: 768px) {
  .calculator {
    padding: 20px 24px;
  }
}
.input-group {
  margin-bottom: 16px;
}
.input-group label {
  display: block;
  margin-bottom: 6px;
  color: var(--text-dark);
  font-weight: 500;
  font-size: 14px;
}
.input-group input[type="range"] {
  width: 100%;
  height: 6px;
  background: linear-gradient(90deg, var(--primary-blue), var(--accent-blue));
  border-radius: 4px;
  outline: none;
  -webkit-appearance: none;
}
.input-group input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  background: var(--white);
  border: 3px solid var(--primary-blue);
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}
.range-value {
  text-align: center;
  margin-top: 6px;
}
.range-value span {
  font-size: 16px;
  font-weight: 700;
  color: var(--primary-blue);
}
@media (min-width: 768px) {
  .range-value span {
    font-size: 20px;
  }
}
.results {
  background: var(--white);
  padding: 12px;
  border-radius: var(--radius);
  margin-bottom: 12px;
}
@media (min-width: 768px) {
  .results {
    padding: 16px 20px;
  }
}
.result-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
  border-bottom: 1px dashed var(--medium-gray);
  font-size: 13px;
}
@media (min-width: 768px) {
  .result-item {
    font-size: 15px;
    padding: 10px 0;
  }
}
.result-item:last-child {
  border-bottom: none;
}
.result-item.highlight {
  background: var(--light-blue);
  margin: -12px -12px 0;
  padding: 10px 12px;
  border-radius: var(--radius);
}
@media (min-width: 768px) {
  .result-item.highlight {
    margin: -16px -20px 0;
    padding: 12px 20px;
  }
}
.result-item .label {
  color: var(--dark-gray);
}
.result-item .value {
  font-weight: 700;
  color: var(--text-dark);
}
.result-item.highlight .value {
  color: var(--success-green);
}
.disclaimer {
  text-align: center;
  font-size: 10px;
  color: var(--dark-gray);
}
@media (min-width: 768px) {
  .disclaimer {
    font-size: 12px;
  }
}

/* ----- CTA (mobile-first) ----- */
.residential-cta {
  padding: 50px 0;
  background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
  position: relative;
  overflow: hidden;
}
@media (min-width: 768px) {
  .residential-cta {
    padding: 80px 0;
  }
}
.cta-content {
  background: rgba(255, 255, 255, 0.95);
  border-radius: var(--radius-lg);
  padding: 30px 20px;
  text-align: center;
  box-shadow: var(--shadow-xl);
  position: relative;
  z-index: 1;
}
@media (min-width: 576px) {
  .cta-content {
    padding: 36px 28px;
  }
}
@media (min-width: 768px) {
  .cta-content {
    padding: 48px 40px;
  }
}
.cta-icon {
  width: 70px;
  height: 70px;
  background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 32px;
  color: var(--white);
  box-shadow: 0 16px 32px rgba(37, 99, 235, 0.3);
  animation: pulseGlow 2s infinite;
}
@media (min-width: 768px) {
  .cta-icon {
    width: 90px;
    height: 90px;
    font-size: 42px;
  }
}
.cta-content h2 {
  font-size: 24px;
  color: var(--text-dark);
  margin-bottom: 12px;
  font-weight: 700;
}
@media (min-width: 576px) {
  .cta-content h2 {
    font-size: 28px;
  }
}
@media (min-width: 768px) {
  .cta-content h2 {
    font-size: 36px;
  }
}
.cta-content p {
  font-size: 15px;
  color: var(--dark-gray);
  max-width: 600px;
  margin: 0 auto 24px;
  line-height: 1.6;
}
@media (min-width: 768px) {
  .cta-content p {
    font-size: 17px;
  }
}
.cta-features {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 24px;
  align-items: center;
}
@media (min-width: 576px) {
  .cta-features {
    flex-direction: row;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
  }
}
.cta-features .feature {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--off-white);
  padding: 8px 16px;
  border-radius: 50px;
  color: var(--primary-blue);
  font-weight: 500;
  font-size: 13px;
}
@media (min-width: 768px) {
  .cta-features .feature {
    padding: 10px 22px;
    font-size: 14px;
  }
}
.cta-features .feature i {
  color: var(--success-green);
}
.cta-buttons {
  display: flex;
  flex-direction: column;
  gap: 12px;
  justify-content: center;
  margin-bottom: 24px;
}
@media (min-width: 576px) {
  .cta-buttons {
    flex-direction: row;
    gap: 16px;
  }
}
.cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 50px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
  border: 2px solid transparent;
}
@media (min-width: 768px) {
  .cta-btn {
    padding: 14px 36px;
    font-size: 16px;
  }
}
.cta-btn.primary {
  background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
  color: var(--white);
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.3);
}
.cta-btn.primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 28px rgba(37, 99, 235, 0.4);
  gap: 12px;
}
.cta-btn.secondary {
  background: transparent;
  color: var(--primary-blue);
  border-color: var(--primary-blue);
}
.cta-btn.secondary:hover {
  background: var(--primary-blue);
  color: var(--white);
  transform: translateY(-3px);
}
.cta-guarantee {
  display: flex;
  flex-direction: column;
  gap: 8px;
  justify-content: center;
  padding-top: 20px;
  border-top: 1px dashed var(--medium-gray);
}
@media (min-width: 576px) {
  .cta-guarantee {
    flex-direction: row;
    gap: 16px;
  }
}
.guarantee-item {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--dark-gray);
  font-size: 12px;
  transition: var(--transition);
}
@media (min-width: 768px) {
  .guarantee-item {
    font-size: 14px;
  }
}
.guarantee-item:hover {
  color: var(--primary-blue);
}
.guarantee-item i {
  font-size: 16px;
  color: var(--primary-blue);
}
@media (min-width: 768px) {
  .guarantee-item i {
    font-size: 18px;
  }
}

/* ----- FOOTER (mobile-first) ----- */
.footer {
  background: var(--text-dark);
  padding: 40px 0 20px;
  color: rgba(255, 255, 255, 0.8);
}
@media (min-width: 768px) {
  .footer {
    padding: 60px 0 30px;
  }
}
.footer-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  margin-bottom: 28px;
}
@media (min-width: 576px) {
  .footer-content {
    grid-template-columns: 1fr 1fr;
  }
}
@media (min-width: 992px) {
  .footer-content {
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 40px;
  }
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}
.footer-logo .logo-icon {
  width: 40px;
  height: 40px;
  background: var(--primary-blue);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--white);
}
.footer-logo .logo-text h3 {
  font-size: 16px;
  color: var(--white);
  font-weight: 700;
}
.footer-logo .logo-text p {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.7);
}
.footer-description {
  font-size: 13px;
  line-height: 1.6;
  margin-bottom: 16px;
  color: rgba(255, 255, 255, 0.7);
}
.social-links {
  display: flex;
  gap: 10px;
}
.social-links a {
  width: 36px;
  height: 36px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  transition: var(--transition);
}
.social-links a:hover {
  background: var(--primary-blue);
  transform: translateY(-3px);
}
.footer-section h4 {
  color: var(--white);
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 12px;
}
.footer-links li {
  margin-bottom: 6px;
}
.footer-links a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 13px;
  transition: var(--transition);
}
.footer-links a:hover {
  color: var(--white);
  padding-left: 4px;
}
.contact-info .contact-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 10px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.7);
}
.contact-info .contact-item i {
  color: var(--primary-blue);
  font-size: 16px;
  margin-top: 2px;
  width: 18px;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  text-align: center;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.5);
}
@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    text-align: left;
  }
}
.footer-bottom-links {
  display: flex;
  gap: 16px;
  justify-content: center;
}
.footer-bottom-links a {
  color: rgba(255, 255, 255, 0.5);
  transition: var(--transition);
}
.footer-bottom-links a:hover {
  color: var(--white);
}

/* ----- MODAL (mobile-first) ----- */
.project-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.8);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  padding: 16px;
  backdrop-filter: blur(8px);
}
.project-modal.active {
  display: flex;
  animation: fadeIn 0.3s ease;
}
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}
.modal-content {
  background: var(--white);
  border-radius: var(--radius-lg);
  max-width: 900px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  animation: modalSlide 0.3s ease;
}
@keyframes modalSlide {
  from {
    transform: translateY(-20px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}
.modal-close {
  position: sticky;
  top: 12px;
  right: 12px;
  float: right;
  width: 36px;
  height: 36px;
  background: var(--white);
  border: 2px solid var(--medium-gray);
  border-radius: 50%;
  color: var(--text-dark);
  cursor: pointer;
  transition: var(--transition);
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 12px 12px 0 0;
}
@media (min-width: 768px) {
  .modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    margin: 0;
  }
}
.modal-close:hover {
  background: var(--primary-blue);
  border-color: var(--primary-blue);
  color: var(--white);
  transform: rotate(90deg);
}
.modal-body {
  padding: 16px;
}
@media (min-width: 768px) {
  .modal-body {
    padding: 32px 40px;
  }
}