:root {
  --primary: #0284c7;
  --primary-dark: #0369a1;
  --primary-light: #38bdf8;
  --primary-soft: #e0f2fe;
  --accent: #16a34a;
  --accent-light: #84cc16;
  --accent-soft: #dcfce7;
  --dark: #0f172a;
  --dark-surface: #1e293b;
  --dark-border: #334155;
  --text-main: #1e293b;
  --text-muted: #64748b;
  --bg-light: #f8fafc;
  --bg-white: #ffffff;
  --border: #e2e8f0;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  font-family: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  color: var(--text-main);
  background-color: var(--bg-light);
}

body {
  line-height: 1.6;
  overflow-x: hidden;
}

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

ul {
  list-style: none;
}

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

.container {
  width: 100%;
  max-width: 1240px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

/* TOPBAR */
.topbar {
  background: linear-gradient(90deg, #075985 0%, #0369a1 50%, #065f46 100%);
  color: #fff;
  font-size: 0.85rem;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.topbar-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.topbar-info {
  display: flex;
  align-items: center;
  gap: 20px;
}

.topbar-item {
  display: flex;
  align-items: center;
  gap: 6px;
  opacity: 0.95;
  transition: opacity 0.2s;
}

.topbar-item:hover {
  opacity: 1;
}

.topbar-badge {
  background: rgba(132, 204, 22, 0.25);
  color: #bef264;
  border: 1px solid rgba(132, 204, 22, 0.4);
  padding: 2px 10px;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.75rem;
  letter-spacing: 0.5px;
}

/* NAVBAR */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}

.navbar.scrolled {
  box-shadow: var(--shadow-md);
  padding: 4px 0;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-symbol {
  width: 44px;
  height: 44px;
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-size: 1.55rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  line-height: 1.1;
  color: #0284c7;
}

.brand-name span {
  color: #65a30d;
}

.brand-sub {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--text-muted);
  text-transform: uppercase;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-main);
  transition: var(--transition);
  position: relative;
  padding: 8px 0;
}

.nav-link:hover, .nav-link.active {
  color: var(--primary);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: var(--transition);
  border-radius: var(--radius-full);
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 22px;
  font-size: 0.92rem;
  font-weight: 700;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #fff;
  box-shadow: 0 4px 14px rgba(2, 132, 199, 0.35);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #0369a1 0%, #075985 100%);
  box-shadow: 0 6px 20px rgba(2, 132, 199, 0.45);
  transform: translateY(-1px);
}

.btn-accent {
  background: linear-gradient(135deg, #16a34a 0%, #15803d 100%);
  color: #fff;
  box-shadow: 0 4px 14px rgba(22, 163, 74, 0.3);
}

.btn-accent:hover {
  background: linear-gradient(135deg, #15803d 0%, #166534 100%);
  transform: translateY(-1px);
}

.btn-outline {
  border-color: var(--border);
  color: var(--text-main);
  background: #fff;
}

.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-soft);
}

.btn-whatsapp {
  background: #25d366;
  color: #fff;
  box-shadow: 0 4px 14px rgba(37, 211, 102, 0.35);
}

.btn-whatsapp:hover {
  background: #20ba59;
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.45);
}

.mobile-toggle {
  display: none;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: var(--dark);
}

/* HERO SECTION */
.hero {
  position: relative;
  padding: 90px 0 110px;
  background: linear-gradient(135deg, #f0fdf4 0%, #f0f9ff 50%, #e0f2fe 100%);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 15% 20%, rgba(14, 165, 233, 0.08) 0%, transparent 40%),
                    radial-gradient(circle at 85% 75%, rgba(132, 204, 22, 0.08) 0%, transparent 40%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 50px;
  position: relative;
  z-index: 1;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: #ffffff;
  border: 1px solid rgba(2, 132, 199, 0.2);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--primary-dark);
  box-shadow: var(--shadow-sm);
  margin-bottom: 24px;
}

.hero-tag .dot {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(22, 163, 74, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(22, 163, 74, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(22, 163, 74, 0); }
}

.hero-title {
  font-size: 3.2rem;
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -1px;
  color: var(--dark);
  margin-bottom: 20px;
}

.hero-title .gradient-text {
  background: linear-gradient(135deg, #0284c7 0%, #16a34a 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  font-size: 1.12rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 34px;
  max-width: 580px;
}

.hero-buttons {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 44px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  padding-top: 30px;
  border-top: 1px solid rgba(226, 232, 240, 0.8);
}

.stat-item h4 {
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
  margin-bottom: 6px;
}

.stat-item p {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
}

.hero-media {
  position: relative;
}

.hero-image-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 25px 50px -12px rgba(2, 132, 199, 0.25);
  border: 4px solid #ffffff;
}

.hero-image-card img {
  width: 100%;
  height: 480px;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.hero-image-card:hover img {
  transform: scale(1.03);
}

.hero-floating-card {
  position: absolute;
  bottom: -25px;
  left: -25px;
  background: #ffffff;
  padding: 18px 22px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xl);
  display: flex;
  align-items: center;
  gap: 14px;
  border: 1px solid var(--border);
  z-index: 2;
  animation: float 4s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.floating-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: var(--primary-soft);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.floating-text h5 {
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--dark);
}

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

/* SECTION COMMONS */
.section {
  padding: 90px 0;
}

.section-light {
  background-color: #ffffff;
}

.section-tint {
  background-color: #f8fafc;
}

.section-dark {
  background: #0f172a;
  color: #ffffff;
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 55px;
}

.section-subtitle {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--primary);
  margin-bottom: 12px;
}

.section-title {
  font-size: 2.35rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--dark);
  line-height: 1.25;
  margin-bottom: 16px;
}

.section-dark .section-title {
  color: #ffffff;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.65;
}

.section-dark .section-desc {
  color: #94a3b8;
}

/* QUICK HIGHLIGHTS / FAALİYETLER */
.highlights-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.highlight-card {
  background: #ffffff;
  padding: 28px 24px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 14px;
}

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

.highlight-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
}

.bg-cyan { background: #e0f2fe; color: #0284c7; }
.bg-green { background: #dcfce7; color: #16a34a; }
.bg-orange { background: #ffedd5; color: #ea580c; }
.bg-purple { background: #f3e8ff; color: #9333ea; }
.bg-blue { background: #dbeafe; color: #2563eb; }
.bg-teal { background: #ccfbf1; color: #0d9488; }

.highlight-card h4 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--dark);
  line-height: 1.3;
}

.highlight-card p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.55;
}

/* PRODUCT / SYSTEM TABS */
.filter-tabs {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 45px;
}

.tab-btn {
  padding: 10px 22px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border);
  background: #ffffff;
  color: var(--text-main);
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.tab-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.tab-btn.active {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
  box-shadow: 0 4px 12px rgba(2, 132, 199, 0.3);
}

/* PRODUCTS GRID */
.systems-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 30px;
}

.system-card {
  background: #ffffff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.system-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-light);
}

.system-img-wrap {
  position: relative;
  height: 240px;
  overflow: hidden;
  background: #e2e8f0;
}

.system-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.system-card:hover .system-img-wrap img {
  transform: scale(1.08);
}

.system-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  padding: 4px 12px;
  background: rgba(15, 23, 42, 0.75);
  backdrop-filter: blur(8px);
  color: #fff;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.system-body {
  padding: 26px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.system-title {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 12px;
  line-height: 1.3;
}

.system-desc {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 20px;
  flex-grow: 1;
}

.system-features {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-bottom: 20px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--border);
}

.feature-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-main);
  font-weight: 600;
}

.feature-pill svg {
  color: var(--accent);
  flex-shrink: 0;
}

.system-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

/* REVERSE OSMOSIS FEATURE SPOTLIGHT */
.spotlight-box {
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  border-radius: var(--radius-lg);
  padding: 50px;
  color: #ffffff;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--dark-border);
}

.spotlight-box::after {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(2, 132, 199, 0.25) 0%, transparent 70%);
  pointer-events: none;
}

.spotlight-content h3 {
  font-size: 2.2rem;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 18px;
}

.spotlight-content p {
  color: #94a3b8;
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 28px;
}

.process-steps {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.process-step {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.step-num {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-weight: 800;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.step-info h5 {
  font-size: 0.95rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 2px;
}

.step-info p {
  font-size: 0.82rem;
  color: #94a3b8;
  margin-bottom: 0;
}

.spotlight-media {
  position: relative;
}

.spotlight-media img {
  border-radius: var(--radius-md);
  border: 2px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

/* WHY US / AVANTAJLAR */
.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}

.why-card {
  background: #ffffff;
  padding: 36px 30px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.why-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary) 0%, var(--accent) 100%);
  opacity: 0;
  transition: var(--transition);
}

.why-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
  border-color: transparent;
}

.why-card:hover::before {
  opacity: 1;
}

.why-icon {
  width: 60px;
  height: 60px;
  border-radius: 16px;
  background: var(--primary-soft);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 22px;
}

.why-card h4 {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 12px;
}

.why-card p {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ESTIMATOR / TEKLİF FORMU */
.quote-section {
  background: linear-gradient(135deg, #0369a1 0%, #075985 50%, #0f172a 100%);
  color: #fff;
  padding: 90px 0;
  position: relative;
}

.quote-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.quote-content h2 {
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
}

.quote-content p {
  font-size: 1.05rem;
  color: #bae6fd;
  line-height: 1.7;
  margin-bottom: 30px;
}

.quote-features {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.quote-feat {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
  font-size: 0.95rem;
  color: #e0f2fe;
}

.quote-card {
  background: #ffffff;
  border-radius: var(--radius-lg);
  padding: 40px;
  color: var(--text-main);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.35);
}

.quote-card h3 {
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 8px;
}

.quote-card p {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.form-group {
  margin-bottom: 18px;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 6px;
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-size: 0.92rem;
  font-family: inherit;
  color: var(--text-main);
  background: #f8fafc;
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  background: #ffffff;
  box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.15);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

/* CONTACT & LOCATION */
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 50px;
}

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 30px;
}

.contact-info-card {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px;
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.contact-info-card:hover {
  border-color: var(--primary);
  transform: translateX(4px);
}

.contact-card-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--primary-soft);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1.25rem;
}

.contact-card-text h5 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 4px;
}

.contact-card-text p, .contact-card-text a {
  font-size: 0.92rem;
  color: var(--text-muted);
}

.contact-card-text a:hover {
  color: var(--primary);
}

.map-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border);
  min-height: 420px;
}

.map-card iframe {
  width: 100%;
  height: 100%;
  min-height: 420px;
  border: none;
}

/* FOOTER */
.footer {
  background: #090e17;
  color: #94a3b8;
  padding: 70px 0 30px;
  border-top: 1px solid #1e293b;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 50px;
  border-bottom: 1px solid #1e293b;
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.65;
  margin-top: 16px;
  color: #64748b;
  max-width: 320px;
}

.footer-col h5 {
  font-size: 1rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 20px;
  letter-spacing: -0.2px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  font-size: 0.88rem;
  color: #94a3b8;
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--primary-light);
  transform: translateX(4px);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 30px;
  font-size: 0.85rem;
  flex-wrap: wrap;
  gap: 16px;
}

/* FLOATING ACTIONS */
.floating-whatsapp {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: #25d366;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 25px rgba(37, 211, 102, 0.5);
  z-index: 999;
  transition: var(--transition);
  font-size: 1.8rem;
}

.floating-whatsapp:hover {
  transform: scale(1.1);
  box-shadow: 0 15px 30px rgba(37, 211, 102, 0.6);
}

.floating-whatsapp::before {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 2px solid #25d366;
  animation: pulse-ring 2s cubic-bezier(0.215, 0.61, 0.355, 1) infinite;
}

@keyframes pulse-ring {
  0% { transform: scale(0.95); opacity: 0.8; }
  50% { transform: scale(1.2); opacity: 0; }
  100% { transform: scale(0.95); opacity: 0; }
}

/* MODAL */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.8);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  background: #ffffff;
  width: 100%;
  max-width: 680px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  transform: translateY(20px) scale(0.96);
  transition: transform 0.3s ease;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
}

.modal-overlay.active .modal-card {
  transform: translateY(0) scale(1);
}

.modal-header {
  padding: 20px 26px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-header h4 {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--dark);
}

.modal-close {
  background: transparent;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-muted);
  transition: color 0.2s;
}

.modal-close:hover {
  color: var(--dark);
}

.modal-body {
  padding: 26px;
  overflow-y: auto;
}

.modal-footer {
  padding: 16px 26px;
  border-top: 1px solid var(--border);
  background: #f8fafc;
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

/* RESPONSIVE */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero-desc {
    margin-left: auto;
    margin-right: auto;
  }
  .hero-buttons {
    justify-content: center;
  }
  .hero-stats {
    justify-content: center;
  }
  .hero-media {
    max-width: 520px;
    margin: 0 auto;
  }
  .spotlight-box {
    grid-template-columns: 1fr;
  }
  .quote-grid {
    grid-template-columns: 1fr;
  }
  .contact-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .topbar-content {
    justify-content: center;
    text-align: center;
  }
  .nav-menu {
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    background: #ffffff;
    flex-direction: column;
    padding: 30px;
    gap: 20px;
    box-shadow: var(--shadow-xl);
    transform: translateY(-120%);
    transition: transform 0.35s ease;
    border-bottom: 1px solid var(--border);
  }
  .nav-menu.active {
    transform: translateY(0);
  }
  .mobile-toggle {
    display: block;
  }
  .hero-title {
    font-size: 2.3rem;
  }
  .section-title {
    font-size: 1.85rem;
  }
  .systems-grid {
    grid-template-columns: 1fr;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

/* MODAL ENHANCEMENTS */
.modal-top-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 20px;
  margin-bottom: 22px;
}

.modal-img-container {
  border-radius: var(--radius-md);
  overflow: hidden;
  height: 220px;
  background: #e2e8f0;
  position: relative;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
}

.modal-img-container img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

#modalFeatureBadge {
  position: absolute;
  bottom: 12px;
  left: 12px;
  background: rgba(15, 23, 42, 0.88);
  backdrop-filter: blur(6px);
  color: #38bdf8;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  border: 1px solid rgba(56, 189, 248, 0.3);
}

.modal-specs-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}

@media (max-width: 680px) {
  .modal-top-grid {
    grid-template-columns: 1fr;
  }
  .modal-img-container {
    height: 180px;
  }
}