/* ==========================================================================
   NIVLA - Estilos Principales
   Diseño de Alto Impacto, Glassmorphism, Responsive & Dark/Light Mode
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=Outfit:wght@400;500;600;700;800&display=swap');

:root {
  /* Color Palette - Dark Theme (Default) */
  --bg-primary: #090d16;
  --bg-secondary: #111827;
  --bg-card: rgba(17, 24, 39, 0.75);
  --bg-card-hover: rgba(30, 41, 59, 0.85);
  --bg-glass: rgba(255, 255, 255, 0.04);
  --border-glass: rgba(255, 255, 255, 0.08);
  --border-active: rgba(99, 102, 241, 0.5);

  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-subtle: #64748b;

  --accent-primary: #4f46e5;
  --accent-secondary: #06b6d4;
  --accent-gradient: linear-gradient(135deg, #6366f1 0%, #06b6d4 50%, #10b981 100%);
  --accent-glow: rgba(99, 102, 241, 0.25);
  --accent-green: #10b981;
  --accent-whatsapp: #25d366;

  --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 10px 25px -5px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 30px rgba(99, 102, 241, 0.2);

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --radius-full: 9999px;

  --font-body: 'Plus Jakarta Sans', sans-serif;
  --font-heading: 'Outfit', sans-serif;

  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Light Theme Variables */
[data-theme="light"] {
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-card: rgba(255, 255, 255, 0.85);
  --bg-card-hover: rgba(241, 245, 249, 0.95);
  --bg-glass: rgba(0, 0, 0, 0.02);
  --border-glass: rgba(0, 0, 0, 0.08);
  --border-active: rgba(79, 70, 229, 0.5);

  --text-main: #0f172a;
  --text-muted: #475569;
  --text-subtle: #64748b;

  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 10px 25px -5px rgba(0, 0, 0, 0.08);
  --shadow-glow: 0 0 25px rgba(79, 70, 229, 0.15);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  scrollbar-width: none; /* Firefox */
  -ms-overflow-style: none; /* IE y Edge */
}

html::-webkit-scrollbar,
body::-webkit-scrollbar,
*::-webkit-scrollbar {
  display: none !important;
  width: 0 !important;
  height: 0 !important;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
  transition: background-color 0.4s ease, color 0.4s ease;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

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

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  outline: none;
  border: none;
}

button {
  cursor: pointer;
}

/* Background Ambient Glow Effects */
.ambient-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: -1;
  overflow: hidden;
}

.glow-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.35;
  animation: floatOrb 20s infinite alternate cubic-bezier(0.45, 0.05, 0.55, 0.95);
}

.glow-orb-1 {
  top: -10%;
  left: 15%;
  width: 500px;
  height: 500px;
  background: #4f46e5;
}

.glow-orb-2 {
  top: 40%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: #06b6d4;
}

.glow-orb-3 {
  bottom: -10%;
  left: 20%;
  width: 550px;
  height: 550px;
  background: #10b981;
}

@keyframes floatOrb {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(40px, 60px) scale(1.1); }
}

/* Container */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Navbar */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: var(--bg-card);
  border-bottom: 1px solid var(--border-glass);
  padding: 1rem 0;
  transition: var(--transition);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  flex-shrink: 0;
}

.brand-badge {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  background: var(--accent-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.15rem;
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
  flex-shrink: 0;
}

.brand-text {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  white-space: nowrap;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 1.15rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-link {
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.88rem;
  transition: var(--transition);
  position: relative;
  white-space: nowrap;
}

.nav-menu-backdrop {
  display: none;
}

.nav-menu-header {
  display: none;
}

.nav-drawer-actions {
  display: none;
}

.nav-link i {
  margin-right: 0.35rem;
  font-size: 0.85rem;
}

.nav-link-highlight-rose {
  color: #f43f5e !important;
  font-weight: 700 !important;
}

.nav-link-highlight-green {
  color: #25d366 !important;
  font-weight: 700 !important;
}

.nav-link-highlight-purple {
  color: #818cf8 !important;
  font-weight: 700 !important;
}

.mobile-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  color: var(--text-main);
  font-size: 1.25rem;
  cursor: pointer;
  transition: var(--transition);
}

.mobile-toggle:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-active);
  color: #ffffff;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

/* Nav Dropdown Menu */
.nav-dropdown-wrapper {
  position: relative;
}

.nav-dropdown-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  background: var(--bg-secondary);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 0.75rem 0;
  min-width: 260px;
  list-style: none;
  box-shadow: var(--shadow-md), var(--shadow-glow);
  backdrop-filter: blur(20px);
  opacity: 0;
  pointer-events: none;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 200;
}

.nav-dropdown-wrapper:hover .nav-dropdown-menu {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

.nav-dropdown-menu li a {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.65rem 1.25rem;
  color: var(--text-muted);
  font-size: 0.88rem;
  font-weight: 500;
  transition: var(--transition);
}

.nav-dropdown-menu li a:hover {
  background: var(--bg-glass);
  color: var(--text-main);
  padding-left: 1.5rem;
}

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

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--accent-gradient);
  border-radius: 2px;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.theme-toggle-btn {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  color: var(--text-main);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: var(--transition);
}

.theme-toggle-btn:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-active);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition);
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--accent-gradient);
  color: #ffffff;
  box-shadow: 0 4px 15px rgba(79, 70, 229, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(79, 70, 229, 0.5);
}

.btn-secondary {
  background: var(--bg-glass);
  border-color: var(--border-glass);
  color: var(--text-main);
}

.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-active);
  transform: translateY(-2px);
}

.btn-whatsapp {
  background: #25d366;
  color: #ffffff;
  box-shadow: 0 4px 15px rgba(37, 211, 102, 0.3);
}

.btn-whatsapp:hover {
  background: #20ba5a;
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(37, 211, 102, 0.45);
}

/* Mobile Nav Toggle */
.mobile-toggle {
  display: none;
  font-size: 1.5rem;
  background: none;
  color: var(--text-main);
}

/* Hero Section */
.hero-section {
  padding: 5rem 0 3rem;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 3rem;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  border-radius: var(--radius-full);
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  color: var(--accent-secondary);
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 1.25rem;
  letter-spacing: -1px;
}

.hero-title span {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
  max-width: 600px;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 3rem;
}

.hero-stats {
  display: flex;
  gap: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-glass);
}

.stat-item h4 {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--text-main);
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stat-item p {
  font-size: 0.875rem;
  color: var(--text-subtle);
}

/* Hero Showcase Card */
.hero-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 2rem;
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-glow);
  transform: perspective(1000px) rotateY(-5deg) rotateX(3deg);
  transition: var(--transition);
}

.hero-card:hover {
  transform: perspective(1000px) rotateY(0deg) rotateX(0deg);
}

.card-header-badge {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

.pulse-dot {
  width: 10px;
  height: 10px;
  background: var(--accent-green);
  border-radius: 50%;
  position: relative;
}

.pulse-dot::after {
  content: '';
  position: absolute;
  top: -4px;
  left: -4px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: rgba(16, 185, 129, 0.4);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.8); opacity: 1; }
  100% { transform: scale(1.8); opacity: 0; }
}

.hero-feature-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.hero-feature-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.85rem;
  background: var(--bg-glass);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-glass);
}

.feature-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: rgba(99, 102, 241, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

/* Sections */
.section {
  padding: 5rem 0;
}

/* Section Header */
.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 3rem;
}

.section-tag {
  color: var(--accent-secondary);
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 0.5rem;
  display: block;
}

.section-title {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 1rem;
  letter-spacing: -0.5px;
}

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

/* Filter Controls */
.filter-wrapper {
  margin-bottom: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  align-items: center;
}

.search-box {
  position: relative;
  width: 100%;
  max-width: 480px;
}

.search-input {
  width: 100%;
  padding: 0.85rem 1.25rem 0.85rem 3rem;
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-full);
  color: var(--text-main);
  font-size: 0.95rem;
  transition: var(--transition);
}

.search-input:focus {
  border-color: var(--border-active);
  box-shadow: 0 0 20px var(--accent-glow);
}

.search-icon {
  position: absolute;
  left: 1.1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-subtle);
  font-size: 1.1rem;
}

.category-tabs {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.6rem;
}

.tab-btn {
  padding: 0.6rem 1.25rem;
  border-radius: var(--radius-full);
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.875rem;
  transition: var(--transition);
}

.tab-btn:hover, .tab-btn.active {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
}

/* Catalog Grid */
.catalog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 2rem;
}

.catalog-card {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(12px);
}

.catalog-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-active);
  box-shadow: var(--shadow-md), var(--shadow-glow);
}

.card-top {
  margin-bottom: 1.5rem;
}

.card-badge-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.25rem;
}

.card-icon-box {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
}

.item-type-badge {
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-service {
  background: rgba(6, 182, 212, 0.15);
  color: #06b6d4;
  border: 1px solid rgba(6, 182, 212, 0.3);
}

.badge-product {
  background: rgba(16, 185, 129, 0.15);
  color: #10b981;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.card-title {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.card-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 1.25rem;
  line-height: 1.5;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1.5rem;
}

.tag-pill {
  font-size: 0.75rem;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm);
  background: var(--bg-glass);
  color: var(--text-subtle);
  border: 1px solid var(--border-glass);
}

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border-glass);
}

.card-price {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--accent-secondary);
}

/* Portfolio Section */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 2rem;
}

.portfolio-card {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
}

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

.portfolio-preview {
  height: 180px;
  background: var(--accent-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: white;
  position: relative;
  overflow: hidden;
}

.portfolio-preview::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, var(--bg-card) 0%, transparent 100%);
}

.portfolio-body {
  padding: 1.75rem;
}

.portfolio-title {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.portfolio-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 1.25rem;
}

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.feature-box {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 2rem;
  text-align: left;
  transition: var(--transition);
}

.feature-box:hover {
  border-color: var(--border-active);
  transform: translateY(-4px);
}

.feature-icon-lg {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  display: inline-block;
}

.feature-box h3 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.feature-box p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* Calculator Section */
.calculator-card {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 3rem;
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-glow);
}

.calc-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 3rem;
}

.calc-options-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
}

.calc-options-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 2rem;
}

.calc-checkbox-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
}

.calc-checkbox-card:hover, .calc-checkbox-card.selected {
  border-color: var(--accent-primary);
  background: rgba(99, 102, 241, 0.1);
}

.calc-info {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.calc-price {
  font-weight: 700;
  color: var(--accent-secondary);
}

.calc-summary-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  height: 100%;
}

.calc-total-row {
  margin: 1.5rem 0;
  padding: 1rem 0;
  border-top: 1px solid var(--border-glass);
  border-bottom: 1px solid var(--border-glass);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.calc-total-amount {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent-green);
}

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
}

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

.modal-content {
  background: var(--bg-secondary);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  width: 90%;
  max-width: 600px;
  padding: 2.5rem;
  position: relative;
  transform: translateY(20px);
  transition: var(--transition);
}

.modal-overlay.active .modal-content {
  transform: translateY(0);
}

.modal-close {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  color: var(--text-main);
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

/* Contact Section & Footer */
.contact-card {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 3rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  backdrop-filter: blur(16px);
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-muted);
}

.form-control {
  width: 100%;
  padding: 0.85rem 1rem;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  color: var(--text-main);
  font-size: 0.95rem;
  transition: var(--transition);
}

.form-control:focus {
  border-color: var(--border-active);
  background: var(--bg-secondary);
}

footer {
  border-top: 1px solid var(--border-glass);
  padding: 3rem 0;
  margin-top: 5rem;
  color: var(--text-subtle);
  font-size: 0.9rem;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.social-links {
  display: flex;
  gap: 1rem;
}

.social-btn {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  color: var(--text-main);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.social-btn:hover {
  background: var(--accent-gradient);
  border-color: transparent;
  color: white;
}

/* Floating WhatsApp Button */
.floating-whatsapp {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 99;
  width: 60px;
  height: 60px;
  border-radius: var(--radius-full);
  background: #25d366;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  box-shadow: 0 8px 25px rgba(37, 211, 102, 0.4);
  transition: var(--transition);
  animation: pulseGreen 2.5s infinite;
}

.floating-whatsapp:hover {
  transform: scale(1.1);
  box-shadow: 0 12px 30px rgba(37, 211, 102, 0.6);
}

@keyframes pulseGreen {
  0% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.6); }
  70% { box-shadow: 0 0 0 18px rgba(37, 211, 102, 0); }
  100% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0); }
}

/* Responsive Media Queries */
@media (max-width: 1024px) {
  .desktop-only-btn {
    display: none !important;
  }
}

@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .hero-card {
    transform: none !important;
  }
  .calc-grid, .contact-card {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

@media (max-width: 768px) {
  /* Navbar Compact Mobile */
  .navbar {
    padding: 0.75rem 0;
  }

  .brand-logo {
    font-size: 1.25rem;
    gap: 0.5rem;
  }

  .brand-badge {
    width: 34px;
    height: 34px;
    font-size: 1rem;
  }

  .mobile-toggle {
    display: inline-flex !important;
  }

  /* Backdrop Overlay */
  .nav-menu-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 998;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
  }

  .nav-menu-backdrop.active {
    display: block;
    opacity: 1;
    visibility: visible;
  }

  /* Offcanvas Drawer Menu */
  .nav-menu-wrapper {
    position: fixed;
    top: 0;
    right: 0;
    width: 86%;
    max-width: 360px;
    height: 100vh;
    height: 100dvh;
    background: var(--bg-secondary);
    border-left: 1px solid var(--border-glass);
    box-shadow: -10px 0 35px rgba(0, 0, 0, 0.6);
    z-index: 999;
    transform: translateX(100%);
    transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    padding: 1.5rem;
  }

  .nav-menu-wrapper.mobile-active {
    transform: translateX(0);
  }

  .nav-menu-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 1.25rem;
    margin-bottom: 1rem;
    border-bottom: 1px solid var(--border-glass);
  }

  .nav-menu-close-btn {
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    color: var(--text-main);
    width: 38px;
    height: 38px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    cursor: pointer;
    transition: var(--transition);
  }

  .nav-menu-close-btn:hover {
    background: var(--bg-card-hover);
    color: #ef4444;
  }

  .nav-menu {
    display: flex !important;
    flex-direction: column;
    gap: 0.5rem;
    list-style: none;
    margin: 0;
    padding: 0;
  }

  .nav-menu li {
    width: 100%;
  }

  .nav-menu .nav-link {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    padding: 0.85rem 1rem;
    border-radius: var(--radius-md);
    background: var(--bg-glass);
    border: 1px solid transparent;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-main);
    transition: var(--transition);
  }

  .nav-menu .nav-link i {
    font-size: 1.1rem;
    width: 20px;
    text-align: center;
    opacity: 0.85;
  }

  .nav-menu .nav-link:hover,
  .nav-menu .nav-link.active {
    background: rgba(99, 102, 241, 0.15);
    border-color: var(--border-active);
    color: #ffffff;
    padding-left: 1.25rem;
  }

  .nav-menu .nav-link.active::after {
    display: none;
  }

  .nav-drawer-actions {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-glass);
  }

  .drawer-btn {
    width: 100%;
    justify-content: center;
    padding: 0.85rem 1rem;
    font-size: 0.95rem;
    border-radius: var(--radius-md);
  }

  .drawer-btn-wa {
    border-color: #25d366;
    color: #25d366;
  }

  /* Bottom Navigation Bar */
  .mobile-bottom-nav {
    display: flex;
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: rgba(17, 24, 39, 0.88);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-top: 1px solid var(--border-glass);
    z-index: 990;
    padding: 0.5rem 0.5rem max(0.5rem, env(safe-area-inset-bottom));
    justify-content: space-around;
    align-items: center;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.35);
  }

  [data-theme="light"] .mobile-bottom-nav {
    background: rgba(255, 255, 255, 0.9);
  }

  .bottom-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.2rem;
    color: var(--text-muted);
    font-size: 0.68rem;
    font-weight: 600;
    padding: 0.35rem 0.6rem;
    border-radius: var(--radius-md);
    background: transparent;
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: var(--transition);
    flex: 1;
    min-height: 48px;
  }

  .bottom-nav-item i {
    font-size: 1.15rem;
    transition: transform 0.2s ease;
  }

  .bottom-nav-item:active i {
    transform: scale(0.9);
  }

  .bottom-nav-item:hover,
  .bottom-nav-item.active {
    color: #6366f1;
  }

  /* Move floating whatsapp up so it doesn't collide with bottom nav */
  .floating-whatsapp {
    bottom: 5.5rem;
    right: 1.25rem;
    width: 52px;
    height: 52px;
    font-size: 1.6rem;
  }

  /* Hero & Headings Mobile Optimization */
  .hero-section {
    padding: 3rem 0 2rem;
  }

  .hero-title {
    font-size: 2.15rem;
    letter-spacing: -0.5px;
    line-height: 1.2;
  }

  .hero-subtitle {
    font-size: 1rem;
    margin-bottom: 1.5rem;
  }

  .hero-ctas {
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 2rem;
  }

  .hero-ctas .btn {
    width: 100%;
  }

  .hero-stats {
    gap: 1.25rem;
    justify-content: space-between;
  }

  .stat-item h4 {
    font-size: 1.4rem;
  }

  .stat-item p {
    font-size: 0.75rem;
  }

  .hero-card {
    padding: 1.5rem;
  }

  /* Sections Mobile */
  .section {
    padding: 3.5rem 0;
  }

  .section-title {
    font-size: 1.85rem;
  }

  .section-desc {
    font-size: 0.95rem;
  }

  /* Category tabs touch scroll */
  .category-tabs {
    flex-wrap: nowrap;
    overflow-x: auto;
    justify-content: flex-start;
    width: 100%;
    padding: 0.5rem 0.25rem;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  .category-tabs::-webkit-scrollbar {
    display: none;
  }

  .tab-btn {
    white-space: nowrap;
    flex-shrink: 0;
    padding: 0.5rem 1rem;
    font-size: 0.82rem;
  }

  /* Catalog & Calculator Mobile */
  .catalog-grid {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }

  .catalog-card {
    padding: 1.5rem;
  }

  .calculator-card {
    padding: 1.5rem;
  }

  .calc-checkbox-card {
    padding: 0.75rem 1rem;
    font-size: 0.9rem;
  }

  /* Extra space for body to not get covered by bottom nav */
  body {
    padding-bottom: 4.5rem;
  }
}

@media (min-width: 769px) {
  .mobile-bottom-nav {
    display: none !important;
  }
}