/* ============================================
   ECOVIBE RENEWTECH ENERGY - WEBSITE STYLES
   Mobile-first, single-page design
   ============================================ */

/* --- CSS Variables --- */
:root {
  --navy: #1a2744;
  --blue: #2563eb;
  --blue-light: #3b82f6;
  --teal: #0d9488;
  --teal-light: #14b8a6;
  --amber: #f59e0b;
  --amber-light: #fbbf24;
  --green: #16a34a;
  --white: #ffffff;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-400: #94a3b8;
  --gray-500: #64748b;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1e293b;
  --gray-900: #0f172a;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 10px 10px -5px rgba(0,0,0,0.04);
  --radius: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --transition: 0.3s ease;
}

/* --- Reset & Base --- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--gray-700);
  background: var(--white);
  line-height: 1.6;
  font-size: 16px;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--blue);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--teal);
}

ul {
  list-style: none;
}

.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--navy);
  color: var(--white);
  padding: 8px 16px;
  z-index: 1000;
  transition: top var(--transition);
}

.skip-link:focus {
  top: 0;
}

/* --- Container --- */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* --- Section Base --- */
.section {
  padding: 60px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-tag {
  display: inline-block;
  background: linear-gradient(135deg, var(--teal), var(--blue));
  color: var(--white);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 16px;
}

.section-header h2 {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--navy);
  line-height: 1.2;
  margin-bottom: 12px;
}

.section-desc {
  color: var(--gray-500);
  font-size: 1rem;
  max-width: 600px;
  margin: 0 auto;
}

/* ============================================
   NAVIGATION
   ============================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0,0,0,0.06);
  transition: box-shadow var(--transition);
}

.navbar.scrolled {
  box-shadow: var(--shadow-md);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.nav-logo img {
  height: 52px;
  width: auto;
}

.nav-toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 110;
}

.hamburger,
.hamburger::before,
.hamburger::after {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--navy);
  border-radius: 2px;
  transition: all var(--transition);
}

.hamburger {
  position: relative;
}

.hamburger::before,
.hamburger::after {
  content: '';
  position: absolute;
  left: 0;
}

.hamburger::before { top: -7px; }
.hamburger::after { top: 7px; }

.nav-toggle.active .hamburger {
  background: transparent;
}

.nav-toggle.active .hamburger::before {
  transform: rotate(45deg);
  top: 0;
}

.nav-toggle.active .hamburger::after {
  transform: rotate(-45deg);
  top: 0;
}

.nav-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 80%;
  max-width: 320px;
  height: 100vh;
  background: var(--white);
  padding: 90px 32px 32px;
  flex-direction: column;
  gap: 0;
  transition: right var(--transition);
  box-shadow: var(--shadow-xl);
  display: flex;
}

.nav-menu.active {
  right: 0;
}

.nav-menu a {
  display: block;
  padding: 14px 0;
  color: var(--gray-700);
  font-weight: 500;
  font-size: 1.05rem;
  border-bottom: 1px solid var(--gray-100);
  transition: color var(--transition);
}

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

.nav-cta {
  display: inline-block !important;
  background: linear-gradient(135deg, var(--teal), var(--blue));
  color: var(--white) !important;
  padding: 12px 24px !important;
  border-radius: var(--radius);
  text-align: center;
  margin-top: 16px;
  border: none !important;
  font-weight: 600 !important;
}

/* Mobile nav overlay */
.nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  z-index: 95;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

.nav-overlay.active {
  opacity: 1;
  pointer-events: all;
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 100px 0 60px;
  overflow: hidden;
}

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

.hero-gradient {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 40%, #0d3b66 60%, #1a2744 100%);
}

/* --- Animated Sun --- */
.hero-sun {
  position: absolute;
  top: -5%;
  right: 5%;
  width: 300px;
  height: 300px;
  animation: sun-float 8s ease-in-out infinite;
}

.sun-svg {
  width: 100%;
  height: 100%;
}

.sun-glow {
  animation: sun-pulse 4s ease-in-out infinite;
}

.sun-core {
  animation: sun-pulse 4s ease-in-out infinite 0.5s;
}

@keyframes sun-float {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-12px) scale(1.03); }
}

@keyframes sun-pulse {
  0%, 100% { opacity: 0.2; }
  50% { opacity: 0.4; }
}

/* --- Animated Solar Panel --- */
.hero-panel {
  position: absolute;
  bottom: 8%;
  right: 2%;
  width: 340px;
  height: 240px;
  opacity: 0.5;
  transform: perspective(600px) rotateX(12deg) rotateY(-8deg);
  animation: panel-float 10s ease-in-out infinite;
}

@keyframes panel-float {
  0%, 100% { transform: perspective(600px) rotateX(12deg) rotateY(-8deg) translateY(0); }
  50% { transform: perspective(600px) rotateX(10deg) rotateY(-6deg) translateY(-10px); }
}

/* Panel cell shimmer */
.panel-cell {
  animation: cell-shimmer 3s ease-in-out infinite;
}
.cell-1, .cell-6, .cell-11, .cell-16 { animation-delay: 0s; }
.cell-2, .cell-7, .cell-12, .cell-13 { animation-delay: 0.4s; }
.cell-3, .cell-8, .cell-9, .cell-14 { animation-delay: 0.8s; }
.cell-4, .cell-5, .cell-10, .cell-15 { animation-delay: 1.2s; }

@keyframes cell-shimmer {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; fill: rgba(13,148,136,0.2); }
}

/* --- Floating Particles --- */
.particles {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.particle {
  position: absolute;
  border-radius: 50%;
  animation: particle-rise linear infinite;
}

.p1 { width: 6px; height: 6px; background: rgba(251,191,36,0.5); left: 15%; bottom: -10%; animation-duration: 9s; animation-delay: 0s; }
.p2 { width: 4px; height: 4px; background: rgba(20,184,166,0.5); left: 30%; bottom: -10%; animation-duration: 11s; animation-delay: 1s; }
.p3 { width: 5px; height: 5px; background: rgba(59,130,246,0.4); left: 50%; bottom: -10%; animation-duration: 8s; animation-delay: 2s; }
.p4 { width: 3px; height: 3px; background: rgba(251,191,36,0.4); left: 65%; bottom: -10%; animation-duration: 12s; animation-delay: 0.5s; }
.p5 { width: 5px; height: 5px; background: rgba(20,184,166,0.5); left: 80%; bottom: -10%; animation-duration: 10s; animation-delay: 3s; }
.p6 { width: 4px; height: 4px; background: rgba(59,130,246,0.3); left: 40%; bottom: -10%; animation-duration: 13s; animation-delay: 4s; }
.p7 { width: 6px; height: 6px; background: rgba(251,191,36,0.3); left: 72%; bottom: -10%; animation-duration: 9s; animation-delay: 2.5s; }
.p8 { width: 3px; height: 3px; background: rgba(20,184,166,0.4); left: 22%; bottom: -10%; animation-duration: 11s; animation-delay: 1.5s; }

@keyframes particle-rise {
  0% {
    transform: translateY(0) translateX(0) scale(0);
    opacity: 0;
  }
  10% {
    opacity: 1;
    transform: translateY(-10vh) translateX(5px) scale(1);
  }
  90% {
    opacity: 0.6;
  }
  100% {
    transform: translateY(-110vh) translateX(-15px) scale(0.5);
    opacity: 0;
  }
}

/* --- Energy Circuit Lines --- */
.hero-circuits {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.circuit-line {
  stroke-dasharray: 8 12;
  animation: circuit-flow 4s linear infinite;
}

.cl-2 { animation-delay: 1s; }
.cl-3 { animation-delay: 2s; }

@keyframes circuit-flow {
  0% { stroke-dashoffset: 0; }
  100% { stroke-dashoffset: -40; }
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.15);
  padding: 8px 20px;
  border-radius: 100px;
  color: var(--amber-light);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 24px;
}

.badge-icon {
  font-size: 1rem;
}

.hero h1 {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--white);
  line-height: 1.15;
  margin-bottom: 20px;
}

.text-gradient {
  background: linear-gradient(135deg, var(--amber-light), var(--teal-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.75);
  max-width: 520px;
  margin-bottom: 32px;
  line-height: 1.7;
}

.hero-stats {
  display: flex;
  gap: 24px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}

.stat {
  text-align: left;
}

.stat-number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--white);
}

.stat-suffix {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--amber);
}

.stat-label {
  display: block;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.6);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-top: 2px;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  transition: all var(--transition);
  cursor: pointer;
  border: none;
  text-align: center;
}

.btn-primary {
  background: linear-gradient(135deg, var(--amber), var(--amber-light));
  color: var(--navy);
  box-shadow: 0 4px 14px rgba(245,158,11,0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(245,158,11,0.5);
  color: var(--navy);
}

.btn-outline {
  background: rgba(255,255,255,0.1);
  color: var(--white);
  border: 1px solid rgba(255,255,255,0.3);
}

.btn-outline:hover {
  background: rgba(255,255,255,0.2);
  color: var(--white);
  transform: translateY(-2px);
}

/* ============================================
   ABOUT SECTION
   ============================================ */
.about {
  background: var(--gray-50);
}

.about-grid {
  display: grid;
  gap: 40px;
}

.about-text p {
  margin-bottom: 16px;
  font-size: 1rem;
  line-height: 1.75;
}

.highlight-text {
  background: linear-gradient(135deg, rgba(13,148,136,0.08), rgba(37,99,235,0.08));
  border-left: 4px solid var(--teal);
  padding: 16px 20px;
  border-radius: 0 var(--radius) var(--radius) 0;
  font-weight: 500;
  color: var(--navy);
}

.commitment-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.commitment-card {
  background: var(--white);
  padding: 24px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
}

.commitment-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.commitment-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--teal), var(--blue));
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.commitment-icon svg {
  stroke: var(--white);
}

.commitment-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 8px;
}

.commitment-card p {
  color: var(--gray-500);
  font-size: 0.9rem;
}

/* ============================================
   SERVICES SECTION
   ============================================ */
.services-grid {
  display: grid;
  gap: 24px;
  margin-bottom: 48px;
}

.service-card {
  position: relative;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  transition: all var(--transition);
  overflow: hidden;
}

.service-card:hover {
  border-color: var(--teal);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.service-card.featured {
  border-color: var(--teal);
  background: linear-gradient(180deg, rgba(13,148,136,0.03) 0%, var(--white) 100%);
}

.service-badge {
  position: absolute;
  top: 16px;
  right: 16px;
  background: linear-gradient(135deg, var(--teal), var(--blue));
  color: var(--white);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 4px 12px;
  border-radius: 100px;
}

.service-icon {
  width: 72px;
  height: 72px;
  background: linear-gradient(135deg, rgba(13,148,136,0.1), rgba(37,99,235,0.1));
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.service-icon svg {
  stroke: var(--teal);
}

.service-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 12px;
}

.service-card > p {
  color: var(--gray-500);
  font-size: 0.95rem;
  margin-bottom: 16px;
  line-height: 1.6;
}

.service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.service-tags li {
  background: var(--gray-50);
  color: var(--gray-600);
  font-size: 0.8rem;
  padding: 4px 12px;
  border-radius: 100px;
  border: 1px solid var(--gray-200);
}

.service-benefit {
  background: linear-gradient(135deg, rgba(22,163,74,0.08), rgba(13,148,136,0.08));
  color: var(--green);
  font-weight: 600;
  font-size: 0.9rem;
  padding: 10px 16px;
  border-radius: var(--radius);
  text-align: center;
}

/* Turnkey Solutions */
.turnkey-section {
  background: linear-gradient(135deg, var(--navy), #1e3a5f);
  border-radius: var(--radius-xl);
  padding: 40px 24px;
  text-align: center;
}

.turnkey-section h3 {
  color: var(--white);
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 32px;
}

.turnkey-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.turnkey-item {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.1);
  padding: 14px 20px;
  border-radius: var(--radius);
  transition: background var(--transition);
}

.turnkey-item:hover {
  background: rgba(255,255,255,0.14);
}

.turnkey-item svg {
  stroke: var(--amber);
  flex-shrink: 0;
}

.turnkey-item span {
  color: rgba(255,255,255,0.9);
  font-size: 0.9rem;
  font-weight: 500;
}

/* ============================================
   PROCESS SECTION
   ============================================ */
.process {
  background: var(--gray-50);
}

.process-timeline {
  position: relative;
  max-width: 640px;
  margin: 0 auto;
}

.process-timeline::before {
  content: '';
  position: absolute;
  left: 22px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--teal), var(--blue));
  border-radius: 2px;
}

.process-step {
  display: flex;
  gap: 20px;
  margin-bottom: 32px;
  position: relative;
}

.process-step:last-child {
  margin-bottom: 0;
}

.step-number {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--teal), var(--blue));
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
  box-shadow: 0 0 0 4px var(--gray-50);
}

.step-content {
  background: var(--white);
  padding: 20px 24px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  flex: 1;
}

.step-content h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 6px;
}

.step-content p {
  color: var(--gray-500);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* ============================================
   WHY CHOOSE US / STRENGTHS
   ============================================ */
.strengths-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-bottom: 48px;
}

.strength-card {
  text-align: center;
  padding: 32px 24px;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  transition: all var(--transition);
}

.strength-card:hover {
  border-color: var(--teal);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.strength-icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, rgba(13,148,136,0.1), rgba(37,99,235,0.1));
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}

.strength-icon svg {
  stroke: var(--teal);
}

.strength-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 8px;
}

.strength-card p {
  color: var(--gray-500);
  font-size: 0.9rem;
}

/* Finance Models */
.finance-models {
  display: grid;
  gap: 24px;
}

.finance-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 0;
  overflow: hidden;
  transition: all var(--transition);
}

.finance-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.finance-header {
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.finance-header.capex {
  background: linear-gradient(135deg, var(--teal), var(--blue));
}

.finance-header.opex {
  background: linear-gradient(135deg, var(--amber), #f97316);
}

.finance-header h3 {
  color: var(--white);
  font-size: 1.15rem;
  font-weight: 700;
}

.finance-badge {
  background: rgba(255,255,255,0.2);
  color: var(--white);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 100px;
  white-space: nowrap;
}

.finance-card > p {
  padding: 20px 24px 0;
  color: var(--gray-600);
  font-size: 0.95rem;
  line-height: 1.6;
}

.finance-card ul {
  padding: 16px 24px 24px;
}

.finance-card li {
  position: relative;
  padding-left: 24px;
  margin-bottom: 8px;
  color: var(--gray-600);
  font-size: 0.9rem;
}

.finance-card li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 8px;
  background: var(--teal);
  border-radius: 50%;
}

/* ============================================
   PROJECTS SECTION — Infinite Scroll Carousel
   ============================================ */
.projects {
  background: var(--gray-50);
  overflow: hidden;
}

.scroll-carousel {
  overflow: hidden;
  position: relative;
  margin: 0 -20px;
  padding: 8px 0;
}

.scroll-carousel::before,
.scroll-carousel::after {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  width: 60px;
  z-index: 2;
  pointer-events: none;
}

.scroll-carousel::before {
  left: 0;
  background: linear-gradient(to right, var(--gray-50), transparent);
}

.scroll-carousel::after {
  right: 0;
  background: linear-gradient(to left, var(--gray-50), transparent);
}

.scroll-track {
  display: flex;
  gap: 20px;
  animation: scroll-left 40s linear infinite;
  width: max-content;
}

.scroll-track:hover {
  animation-play-state: paused;
}

@keyframes scroll-left {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.project-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 24px;
  transition: box-shadow var(--transition);
  position: relative;
  overflow: hidden;
  min-width: 280px;
  max-width: 300px;
  flex-shrink: 0;
}

.project-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(to bottom, var(--teal), var(--blue));
}

.project-card:hover {
  box-shadow: var(--shadow-lg);
}

.project-capacity {
  display: inline-block;
  background: linear-gradient(135deg, var(--teal), var(--blue));
  color: var(--white);
  font-weight: 700;
  font-size: 0.85rem;
  padding: 4px 14px;
  border-radius: 100px;
  margin-bottom: 12px;
}

.project-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 4px;
}

.project-location {
  color: var(--gray-500);
  font-size: 0.85rem;
  margin-bottom: 12px;
}

.project-details {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.project-details span {
  background: var(--gray-50);
  color: var(--gray-600);
  font-size: 0.75rem;
  padding: 3px 10px;
  border-radius: 100px;
  border: 1px solid var(--gray-200);
}

/* ============================================
   PARTNERS SECTION — Infinite Marquee
   ============================================ */
.marquee-wrapper {
  margin-bottom: 20px;
}

.marquee-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--gray-400);
  text-align: center;
  margin-bottom: 12px;
}

.marquee {
  overflow: hidden;
  position: relative;
}

.marquee::before,
.marquee::after {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  width: 80px;
  z-index: 2;
  pointer-events: none;
}

.marquee::before {
  left: 0;
  background: linear-gradient(to right, var(--white), transparent);
}

.marquee::after {
  right: 0;
  background: linear-gradient(to left, var(--white), transparent);
}

.marquee-track {
  display: flex;
  gap: 16px;
  width: max-content;
  animation: marquee-scroll 20s linear infinite;
}

.marquee.reverse .marquee-track {
  animation-direction: reverse;
}

.marquee-track:hover {
  animation-play-state: paused;
}

@keyframes marquee-scroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.partner-name {
  background: var(--gray-50);
  color: var(--navy);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 12px 28px;
  border-radius: var(--radius);
  border: 1px solid var(--gray-200);
  white-space: nowrap;
  transition: all var(--transition);
  flex-shrink: 0;
}

.partner-name:hover {
  border-color: var(--teal);
  box-shadow: var(--shadow-md);
  background: var(--white);
}

/* ============================================
   SOLARIQ CALCULATOR SECTION
   ============================================ */
.calculator {
  background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 50%, #0d3b66 100%);
  position: relative;
  overflow: hidden;
}

.calculator .section-tag {
  background: linear-gradient(135deg, var(--amber), #f97316);
}

.calculator .section-header h2 {
  color: var(--white);
}

.calculator .section-desc {
  color: rgba(255,255,255,0.6);
}

.calc-wrapper {
  max-width: 900px;
  margin: 0 auto;
}

.calc-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-xl);
  padding: 32px 24px;
  backdrop-filter: blur(12px);
}

.calc-form {
  display: grid;
  gap: 28px;
  margin-bottom: 36px;
}

.calc-field label {
  display: block;
  color: rgba(255,255,255,0.8);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 12px;
}

/* Type buttons */
.calc-type-btns {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.type-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.15);
  background: rgba(255,255,255,0.05);
  color: rgba(255,255,255,0.7);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  flex: 1;
  justify-content: center;
  min-width: 120px;
}

.type-btn:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.3);
}

.type-btn.active {
  background: linear-gradient(135deg, var(--teal), var(--blue));
  border-color: transparent;
  color: var(--white);
  box-shadow: 0 4px 12px rgba(13,148,136,0.3);
}

.type-btn svg {
  stroke: currentColor;
  flex-shrink: 0;
}

/* Sliders */
.calc-slider-group {
  display: flex;
  align-items: center;
  gap: 16px;
}

.calc-slider {
  flex: 1;
  -webkit-appearance: none;
  appearance: none;
  height: 6px;
  background: rgba(255,255,255,0.15);
  border-radius: 3px;
  outline: none;
}

.calc-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--amber), var(--amber-light));
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(245,158,11,0.4);
  transition: transform 0.15s;
}

.calc-slider::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

.calc-slider::-moz-range-thumb {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--amber), var(--amber-light));
  cursor: pointer;
  border: none;
  box-shadow: 0 2px 8px rgba(245,158,11,0.4);
}

.calc-slider-value {
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.15);
  color: var(--amber-light);
  font-weight: 700;
  font-size: 1.05rem;
  padding: 8px 16px;
  border-radius: var(--radius);
  min-width: 120px;
  text-align: center;
  white-space: nowrap;
}

.calc-slider-range {
  display: flex;
  justify-content: space-between;
  margin-top: 6px;
  font-size: 0.75rem;
  color: rgba(255,255,255,0.35);
}

/* Select */
.calc-select {
  width: 100%;
  padding: 12px 16px;
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.15);
  background: rgba(255,255,255,0.08);
  color: var(--white);
  font-size: 0.95rem;
  font-family: inherit;
  outline: none;
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12' fill='none'%3E%3Cpath d='M3 4.5L6 7.5L9 4.5' stroke='rgba(255,255,255,0.5)' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
}

.calc-select option {
  background: var(--navy);
  color: var(--white);
}

/* Results */
.calc-results h3 {
  color: var(--white);
  font-size: 1.2rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.calc-results-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 28px;
}

.result-item {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius);
  padding: 20px 16px;
  text-align: center;
  transition: all var(--transition);
}

.result-item:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.15);
}

.result-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 12px;
}

.sun-icon { background: rgba(251,191,36,0.15); }
.sun-icon svg { stroke: var(--amber); }
.save-icon { background: rgba(22,163,74,0.15); }
.save-icon svg { stroke: var(--green); }
.cost-icon { background: rgba(59,130,246,0.15); }
.cost-icon svg { stroke: var(--blue-light); }
.roi-icon { background: rgba(13,148,136,0.15); }
.roi-icon svg { stroke: var(--teal-light); }
.tree-icon { background: rgba(22,163,74,0.15); }
.tree-icon svg { stroke: var(--green); }
.life-icon { background: rgba(251,191,36,0.15); }
.life-icon svg { stroke: var(--amber); }

.result-value {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 4px;
}

.result-label {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.5);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.btn-whatsapp-calc {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 16px 28px;
  background: #25d366;
  color: var(--white) !important;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: 1rem;
  box-shadow: 0 4px 14px rgba(37,211,102,0.3);
  transition: all var(--transition);
}

.btn-whatsapp-calc:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(37,211,102,0.45);
  color: var(--white) !important;
}

/* ============================================
   FAQ SECTION
   ============================================ */
.faq {
  background: var(--gray-50);
}

.faq-list {
  max-width: 760px;
  margin: 0 auto;
}

.faq-item {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color var(--transition);
}

.faq-item[open] {
  border-color: var(--teal);
}

.faq-item summary {
  padding: 18px 24px;
  font-weight: 600;
  color: var(--navy);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 0.95rem;
  list-style: none;
  -webkit-user-select: none;
  user-select: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: '+';
  font-size: 1.3rem;
  font-weight: 300;
  color: var(--gray-400);
  flex-shrink: 0;
  transition: transform var(--transition);
}

.faq-item[open] summary::after {
  content: '\2212';
  color: var(--teal);
}

.faq-answer {
  padding: 0 24px 20px;
}

.faq-answer p {
  color: var(--gray-600);
  font-size: 0.9rem;
  line-height: 1.7;
}

/* ============================================
   CONTACT SECTION
   ============================================ */
.contact-grid {
  display: grid;
  gap: 32px;
}

.contact-info {
  display: grid;
  gap: 20px;
}

.contact-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.contact-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, rgba(13,148,136,0.1), rgba(37,99,235,0.1));
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-icon svg {
  stroke: var(--teal);
}

.contact-item h3 {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--gray-400);
  margin-bottom: 4px;
}

.contact-item p,
.contact-item a {
  color: var(--gray-700);
  font-size: 0.95rem;
  line-height: 1.6;
}

.contact-item a:hover {
  color: var(--teal);
}

.contact-whatsapp-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 16px 24px;
  background: #25d366;
  color: var(--white) !important;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: 1rem;
  box-shadow: 0 4px 14px rgba(37,211,102,0.25);
  transition: all var(--transition);
  margin-top: 8px;
}

.contact-whatsapp-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(37,211,102,0.4);
  color: var(--white) !important;
}

.contact-map {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.contact-map iframe {
  display: block;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--gray-900);
  color: rgba(255,255,255,0.7);
  padding: 48px 0 0;
}

.footer-grid {
  display: grid;
  gap: 32px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-brand img {
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 16px;
}

.footer-badge {
  display: inline-block;
  background: rgba(245,158,11,0.15);
  color: var(--amber);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 100px;
  border: 1px solid rgba(245,158,11,0.2);
}

.footer h4 {
  color: var(--white);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.footer ul li {
  margin-bottom: 10px;
}

.footer ul a {
  color: rgba(255,255,255,0.6);
  font-size: 0.9rem;
  transition: color var(--transition);
}

.footer ul a:hover {
  color: var(--amber);
}

.footer-contact p {
  margin-bottom: 8px;
  font-size: 0.9rem;
}

.footer-contact a {
  color: rgba(255,255,255,0.7);
}

.footer-contact a:hover {
  color: var(--amber);
}

.footer-bottom {
  padding: 20px 0;
  text-align: center;
}

.footer-bottom p {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.4);
}

/* ============================================
   WHATSAPP FLOATING BUTTON
   ============================================ */
.whatsapp-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 56px;
  height: 56px;
  background: #25d366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(37,211,102,0.4);
  z-index: 90;
  transition: all var(--transition);
  animation: whatsapp-pulse 2s infinite;
}

.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 20px rgba(37,211,102,0.5);
}

.whatsapp-tooltip {
  position: absolute;
  right: 68px;
  background: var(--white);
  color: var(--gray-700);
  font-size: 0.85rem;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

.whatsapp-float:hover .whatsapp-tooltip {
  opacity: 1;
}

.whatsapp-tooltip::after {
  content: '';
  position: absolute;
  right: -6px;
  top: 50%;
  transform: translateY(-50%);
  border-left: 6px solid var(--white);
  border-top: 6px solid transparent;
  border-bottom: 6px solid transparent;
}

@keyframes whatsapp-pulse {
  0% { box-shadow: 0 4px 12px rgba(37,211,102,0.4); }
  50% { box-shadow: 0 4px 12px rgba(37,211,102,0.4), 0 0 0 12px rgba(37,211,102,0.1); }
  100% { box-shadow: 0 4px 12px rgba(37,211,102,0.4); }
}

/* ============================================
   PHONE FLOATING BUTTON (Mobile Only)
   ============================================ */
.phone-float {
  position: fixed;
  bottom: 24px;
  left: 24px;
  width: 52px;
  height: 52px;
  background: var(--blue);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(37,99,235,0.4);
  z-index: 90;
  transition: all var(--transition);
}

.phone-float:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 20px rgba(37,99,235,0.5);
}

/* ============================================
   RESPONSIVE: TABLET (640px+)
   ============================================ */
@media (min-width: 640px) {
  .section-header h2 {
    font-size: 2rem;
  }

  .hero h1 {
    font-size: 2.8rem;
  }

  .commitment-cards {
    grid-template-columns: repeat(3, 1fr);
  }

  .strengths-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .finance-models {
    grid-template-columns: repeat(2, 1fr);
  }

  .turnkey-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .calc-results-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ============================================
   RESPONSIVE: DESKTOP (1024px+)
   ============================================ */
@media (min-width: 1024px) {
  .container {
    padding: 0 40px;
  }

  .section {
    padding: 80px 0;
  }

  .section-header h2 {
    font-size: 2.5rem;
  }

  .section-desc {
    font-size: 1.1rem;
  }

  /* Nav Desktop */
  .nav-toggle {
    display: none;
  }

  .nav-menu {
    position: static;
    width: auto;
    max-width: none;
    height: auto;
    background: none;
    padding: 0;
    box-shadow: none;
    flex-direction: row;
    align-items: center;
    gap: 4px;
    display: flex;
  }

  .nav-menu a {
    padding: 8px 14px;
    font-size: 0.9rem;
    border-bottom: none;
  }

  .nav-cta {
    padding: 10px 20px !important;
    margin-top: 0 !important;
    margin-left: 8px;
    font-size: 0.85rem !important;
  }

  /* Hero */
  .hero h1 {
    font-size: 3.5rem;
  }

  .hero-subtitle {
    font-size: 1.15rem;
  }

  .hero-stats {
    gap: 48px;
  }

  .stat-number {
    font-size: 2.5rem;
  }

  /* About */
  .about-grid {
    grid-template-columns: 1.2fr 1fr;
    align-items: start;
  }

  /* Services */
  .services-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .turnkey-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .turnkey-section {
    padding: 48px 40px;
  }

  /* Strengths */
  .strengths-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  /* Calculator */
  .calc-card {
    padding: 48px 40px;
  }

  .calc-form {
    grid-template-columns: repeat(2, 1fr);
  }

  .calc-field:first-child {
    grid-column: 1 / -1;
  }

  /* Contact */
  .contact-grid {
    grid-template-columns: 1fr 1.2fr;
    align-items: start;
  }

  /* Footer */
  .footer-grid {
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
  }

  /* Hero graphics scale up */
  .hero-sun {
    width: 450px;
    height: 450px;
    top: -10%;
    right: 8%;
  }

  .hero-panel {
    width: 420px;
    height: 300px;
    bottom: 10%;
    right: 5%;
    opacity: 0.6;
  }

  /* Phone float hidden on desktop */
  .phone-float {
    display: none;
  }
}

/* ============================================
   ANIMATIONS (reduced motion safe)
   ============================================ */
@media (prefers-reduced-motion: no-preference) {
  .fade-in {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
  }

  .fade-in.visible {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .whatsapp-float {
    animation: none;
  }

  html {
    scroll-behavior: auto;
  }
}

/* ============================================
   PRINT STYLES
   ============================================ */
@media print {
  .navbar, .whatsapp-float, .phone-float, .contact-map {
    display: none !important;
  }

  .hero {
    min-height: auto;
    padding: 40px 0;
  }

  .hero-gradient {
    background: var(--white) !important;
  }

  .hero h1, .hero-subtitle, .stat-number, .stat-label, .stat-suffix {
    color: var(--navy) !important;
    -webkit-text-fill-color: var(--navy) !important;
  }
}