/* ==========================================================================
   STYLE SYSTEM - HYDROTECH WATER SYSTEMS
   ========================================================================== */

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

:root {
  /* Color Palette - Premium Light Theme (Açık Tonlar) */
  --bg-primary: #f8f9fa; /* Soft light-grey page background */
  --bg-secondary: #ffffff; /* Clean white card background */
  --bg-tertiary: #e9ecef; /* Neutral grey structural elements */
  --accent-cyan: #e11d48; /* Ruby Red primary accent */
  --accent-blue: #ef4444; /* Bright Red hover accent */
  --accent-teal: #991b1b; /* Deep Maroon secondary accent */
  --text-primary: #18191d; /* Dark charcoal text */
  --text-secondary: #495057; /* Slate grey text */
  --text-muted: #868e96; /* Silver-grey text */
  --border-color: rgba(225, 29, 72, 0.08); /* Subtle crimson tint border */
  --border-hover: #ef4444; /* Bright Red border hover */
  
  /* Gradients */
  --grad-primary: linear-gradient(135deg, #e11d48 0%, #b91c1c 100%); /* Ruby Red to Deep Red */
  --grad-dark: linear-gradient(180deg, #f8f9fa 0%, #ffffff 100%);
  --grad-card: linear-gradient(135deg, rgba(255, 255, 255, 0.95) 0%, rgba(248, 249, 250, 0.98) 100%);
  --grad-glow: 0 10px 35px rgba(0, 0, 0, 0.06);
  
  /* Fonts */
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* Spacing & Transitions */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --border-radius-sm: 8px;
  --border-radius-md: 16px;
  --border-radius-lg: 24px;
}

/* Base Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

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

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

/* Layout Utilities */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-padding {
  padding: 100px 0;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

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

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-2 { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .section-padding { padding: 60px 0; }
}

/* Header & Navigation */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition-fast);
}

.header.scrolled {
  background: rgba(248, 249, 250, 0.95);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.05);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
  gap: 16px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: clamp(1.2rem, 1.8vw, 1.5rem);
  background: var(--grad-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  flex-shrink: 0;
  white-space: nowrap;
}

.logo svg {
  width: 32px;
  height: 32px;
  fill: url(#logo-grad);
  flex-shrink: 0;
}

.header-search-container {
  max-width: 240px;
  width: 100%;
}

.header-search-btn {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(0, 0, 0, 0.02);
  border: 1px solid var(--border-color);
  border-radius: 50px;
  padding: 8px 16px;
  color: var(--text-secondary);
  font-size: 0.88rem;
  cursor: pointer;
  transition: all 0.2s ease-in-out;
  text-align: left;
  white-space: nowrap;
}

.header-search-btn:hover {
  background: rgba(225, 29, 72, 0.04);
  border-color: var(--accent-cyan);
  color: var(--text-primary);
  box-shadow: 0 4px 12px rgba(225, 29, 72, 0.06);
}

.search-kbd {
  margin-left: auto;
  font-size: 0.72rem;
  background: rgba(0, 0, 0, 0.06);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--text-muted);
}

.nav-links {
  display: flex;
  gap: clamp(12px, 2vw, 24px);
  list-style: none;
  flex-wrap: nowrap;
}

.nav-links a {
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: 8px 0;
  white-space: nowrap;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--grad-primary);
  transition: var(--transition-fast);
}

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

.nav-btn {
  background: var(--grad-primary);
  color: #ffffff;
  font-weight: 600;
  padding: 10px 24px;
  border-radius: var(--border-radius-sm);
  box-shadow: var(--grad-glow);
  transition: var(--transition-fast);
  cursor: pointer;
  white-space: nowrap;
}

.nav-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 25px rgba(225, 29, 72, 0.45);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 25px;
  height: 3px;
  background-color: var(--text-primary);
  transition: var(--transition-fast);
}



/* Glassmorphism Card Style */
.glass-card {
  background: var(--grad-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  padding: 32px;
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
  color: var(--text-primary) !important;
}

.glass-card h1,
.glass-card h2,
.glass-card h3,
.glass-card h4,
.glass-card h5,
.glass-card h6 {
  color: var(--text-primary) !important;
}

.glass-card p {
  color: var(--text-secondary) !important;
}

.glass-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(225, 29, 72, 0.05) 0%, transparent 100%);
  opacity: 0;
  transition: var(--transition-normal);
  pointer-events: none;
}

.glass-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-hover);
  box-shadow: 0 10px 30px rgba(225, 29, 72, 0.05);
}

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

/* Typography elements */
.gradient-text {
  background: var(--grad-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.section-title-wrapper {
  text-align: center;
  margin-bottom: 60px;
}

.section-tag {
  text-transform: uppercase;
  font-size: 0.85rem;
  letter-spacing: 0.15em;
  font-weight: 700;
  color: var(--accent-cyan);
  margin-bottom: 12px;
  display: block;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 16px;
}

.section-desc {
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
  font-size: 1.1rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  border-radius: var(--border-radius-sm);
  font-weight: 600;
  transition: var(--transition-fast);
  cursor: pointer;
  gap: 8px;
}

.btn-primary {
  background: var(--grad-primary);
  color: #ffffff;
  box-shadow: var(--grad-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 25px rgba(225, 29, 72, 0.45);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

.btn-accent {
  border: 1px solid var(--accent-cyan);
  color: var(--accent-cyan);
}

.btn-accent:hover {
  background: rgba(225, 29, 72, 0.1);
  transform: translateY(-2px);
}

/* Form Styles */
.form-group {
  margin-bottom: 24px;
}

.form-label {
  display: block;
  font-weight: 500;
  margin-bottom: 8px;
  color: var(--text-secondary);
}

.form-control {
  width: 100%;
  padding: 14px 18px;
  background: rgba(19, 19, 23, 0.6);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  color: var(--text-primary);
  transition: var(--transition-fast);
}

.form-control:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 10px rgba(225, 29, 72, 0.18);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

@media (max-width: 640px) {
  .form-grid {
    grid-template-columns: 1fr;
  }
}

/* Hero Section */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 80px;
  overflow: hidden;
  background: radial-gradient(circle at 80% 20%, rgba(239, 68, 68, 0.1) 0%, transparent 50%),
              radial-gradient(circle at 10% 80%, rgba(225, 29, 72, 0.08) 0%, transparent 50%);
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero-tagline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(225, 29, 72, 0.06);
  border: 1px solid rgba(225, 29, 72, 0.15);
  padding: 6px 16px;
  border-radius: 100px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent-cyan);
  margin-bottom: 24px;
}

.hero-tagline span {
  width: 8px;
  height: 8px;
  background-color: var(--accent-cyan);
  border-radius: 50%;
  display: block;
  animation: pulse-glow 2s infinite;
}

.hero-title {
  font-size: 4rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 24px;
}

.hero-title span {
  display: block;
}

.hero-desc {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin-bottom: 40px;
}

.hero-actions {
  display: flex;
  gap: 16px;
}

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

/* Background animated elements */
.hero-glow {
  position: absolute;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(225, 29, 72, 0.15) 0%, transparent 70%);
  border-radius: 50%;
  filter: blur(40px);
  animation: float 8s ease-in-out infinite alternate;
}

/* Animated Pump Scheme (SVG-based) */
.system-simulation {
  width: 100%;
  max-width: 500px;
  height: auto;
  border-radius: var(--border-radius-lg);
  border: 1px solid var(--border-color);
  background: var(--bg-secondary);
  padding: 24px;
  box-shadow: 0 20px 40px rgba(0,0,0,0.04);
}

/* Wave Animation */
.water-flow-line {
  stroke-dasharray: 8, 8;
  animation: dash 1s linear infinite;
}

@keyframes dash {
  to {
    stroke-dashoffset: -16;
  }
}

/* Feature Cards */
.feature-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--border-radius-sm);
  background: rgba(225, 29, 72, 0.05);
  border: 1px solid rgba(225, 29, 72, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  color: var(--accent-cyan);
}

.feature-icon svg {
  width: 32px;
  height: 32px;
}

.feature-title {
  font-size: 1.5rem;
  margin-bottom: 12px;
}

.feature-desc {
  color: var(--text-secondary);
}

/* Product Section Card */
.product-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 20px !important;
}

.product-image {
  height: 280px;
  background: rgba(0, 0, 0, 0.015);
  border-radius: var(--border-radius-sm);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-color);
  overflow: hidden;
  position: relative;
}

.product-image img {
  width: 100%;
  height: 100%;
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  transition: var(--transition-normal);
}

.product-card:hover .product-image img {
  transform: scale(1.1) rotate(2deg);
}

.product-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  background: var(--accent-cyan);
  color: #ffffff;
  backdrop-filter: blur(4px);
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
}

.product-specs {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin: 16px 0;
  padding: 12px 0;
  border-top: 1px dashed var(--border-color);
  border-bottom: 1px dashed var(--border-color);
  font-size: 0.9rem;
}

.spec-row {
  display: flex;
  justify-content: space-between;
}

.spec-label {
  color: var(--text-secondary);
}

.spec-val {
  font-weight: 600;
  color: var(--accent-cyan);
}

.product-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: auto;
}

.product-price {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

/* Calculator Section */
.calc-wrapper {
  background: var(--grad-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 48px;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.04);
}

@media (max-width: 968px) {
  .calc-wrapper {
    grid-template-columns: 1fr;
    padding: 32px;
  }
}

.calc-title {
  font-size: 2rem;
  margin-bottom: 8px;
}

.calc-subtitle {
  color: var(--text-secondary);
  margin-bottom: 32px;
}

.range-wrap {
  position: relative;
  margin-bottom: 24px;
}

.range-label-wrap {
  display: flex;
  justify-content: space-between;
  margin-bottom: 8px;
}

input[type=range] {
  width: 100%;
  height: 6px;
  background: var(--bg-tertiary);
  border-radius: 3px;
  outline: none;
  -webkit-appearance: none;
}

input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--accent-cyan);
  cursor: pointer;
  box-shadow: 0 4px 10px rgba(225, 29, 72, 0.3);
  transition: var(--transition-fast);
}

input[type=range]::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

.calc-results {
  background: var(--bg-primary);
  border-radius: var(--border-radius-md);
  padding: 32px;
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
}

.result-heading {
  font-size: 1.25rem;
  margin-bottom: 24px;
  color: var(--text-secondary);
  text-align: center;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 16px;
}

.result-item {
  display: flex;
  justify-content: space-between;
  margin-bottom: 16px;
}

.result-label {
  color: var(--text-secondary);
}

.result-val {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--accent-cyan);
}

.result-val.total-power {
  font-size: 1.8rem;
  color: var(--accent-cyan);
}

.calc-recommendation {
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--border-color);
}

.calc-recommendation-title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-secondary);
}

.calc-rec-box {
  background: rgba(225, 29, 72, 0.04);
  border: 1px solid rgba(225, 29, 72, 0.12);
  border-radius: var(--border-radius-sm);
  padding: 16px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.calc-rec-img {
  width: 50px;
  height: 50px;
  object-fit: contain;
  background: rgba(0, 0, 0, 0.02);
  border-radius: 4px;
  padding: 4px;
}

.calc-rec-name {
  font-weight: 600;
  font-size: 1rem;
  margin-bottom: 4px;
}

.calc-rec-link {
  font-size: 0.85rem;
  color: var(--accent-cyan);
  font-weight: 500;
}

/* Modals */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(8, 15, 29, 0.8);
  backdrop-filter: blur(8px);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.modal.active {
  display: flex;
}

.modal-content {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  max-width: 800px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  box-shadow: 0 20px 50px rgba(0,0,0,0.06);
  animation: modal-in 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes modal-in {
  from { opacity: 0; transform: scale(0.9); }
  to { opacity: 1; transform: scale(1); }
}

.modal-close {
  position: absolute;
  top: 24px;
  right: 24px;
  cursor: pointer;
  font-size: 2rem;
  line-height: 1;
  color: var(--text-secondary);
  transition: var(--transition-fast);
}

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

.modal-body {
  padding: 48px;
}

@media (max-width: 640px) {
  .modal-body {
    padding: 24px;
  }
}

.product-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 32px;
}

@media (max-width: 768px) {
  .product-detail-grid {
    grid-template-columns: 1fr;
  }
}

/* Footer */
.footer {
  background-color: #040810;
  border-top: 1px solid var(--border-color);
  padding: 80px 0 40px;
  color: var(--text-secondary);
}

.footer-brand {
  margin-bottom: 24px;
}

.footer-desc {
  margin-top: 12px;
  font-size: 0.95rem;
  max-width: 300px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 40px;
}

@media (max-width: 968px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 480px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

.footer-title {
  color: var(--text-primary);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 20px;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a:hover {
  color: var(--accent-cyan);
  padding-left: 4px;
}

.footer-bottom {
  margin-top: 60px;
  padding-top: 30px;
  border-top: 1px solid rgba(255,255,255,0.05);
  display: flex;
  justify-content: space-between;
  font-size: 0.9rem;
}

@media (max-width: 640px) {
  .footer-bottom {
    flex-direction: column;
    gap: 16px;
    align-items: center;
    text-align: center;
  }
}

/* Testimonial Slider / Grid */
.testimonial-card {
  padding: 32px;
  background: var(--grad-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
}

.testimonial-text {
  font-style: italic;
  margin-bottom: 24px;
  color: var(--text-secondary);
}

.testimonial-user {
  display: flex;
  align-items: center;
  gap: 16px;
}

.testimonial-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--bg-tertiary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-cyan);
  font-weight: bold;
  border: 1px solid var(--border-color);
}

.testimonial-name {
  font-weight: 600;
  color: var(--text-primary);
}

.testimonial-title {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Keyframe Animations */
@keyframes float {
  0% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-10px) rotate(1deg); }
  100% { transform: translateY(0px) rotate(0deg); }
}

@keyframes pulse-glow {
  0% { box-shadow: 0 0 0 0 rgba(225, 29, 72, 0.3); }
  70% { box-shadow: 0 0 0 10px rgba(0, 242, 254, 0); }
  100% { box-shadow: 0 0 0 0 rgba(0, 242, 254, 0); }
}

/* Technical Simulator specific stylings */
.svg-pipe {
  stroke: var(--bg-tertiary);
  stroke-width: 12px;
  fill: none;
  stroke-linecap: round;
}

.svg-pipe-water {
  stroke: #ef4444;
  stroke-width: 6px;
  fill: none;
  stroke-linecap: round;
  filter: drop-shadow(0 0 4px rgba(239, 68, 68, 0.6));
}

.svg-pump {
  fill: #e11d48;
  filter: drop-shadow(0 0 8px rgba(225, 29, 72, 0.4));
}

.svg-water-tank {
  fill: rgba(225, 29, 72, 0.08);
  stroke: var(--border-color);
  stroke-width: 2px;
}

/* Page Specific details */
.about-hero {
  padding: 140px 0 80px;
  background: radial-gradient(circle at 50% 100%, rgba(225, 29, 72, 0.06) 0%, transparent 60%);
  text-align: center;
}

.about-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 60px;
}

.about-stats {
  display: flex;
  justify-content: space-around;
  margin-top: 80px;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  padding: 40px 0;
  text-align: center;
}

.stat-num {
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 800;
  color: var(--accent-cyan);
}

.stat-label {
  color: var(--text-secondary);
  font-weight: 500;
}

/* Contact page styles */
.contact-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 48px;
}

@media (max-width: 968px) {
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

.contact-info-card {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.info-item {
  display: flex;
  gap: 20px;
}

.info-icon {
  width: 48px;
  height: 48px;
  background: rgba(225, 29, 72, 0.05);
  border: 1px solid rgba(225, 29, 72, 0.15);
  border-radius: var(--border-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-cyan);
}

.info-icon svg {
  width: 24px;
  height: 24px;
}

.info-text h4 {
  font-size: 1.1rem;
  margin-bottom: 4px;
}

.info-text p {
  color: var(--text-secondary);
}

/* Quote Wizard / Advanced Form */
.quote-wizard {
  background: var(--grad-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 40px;
}

.wizard-steps-indicator {
  display: flex;
  justify-content: space-between;
  margin-bottom: 40px;
  position: relative;
}

.wizard-steps-indicator::before {
  content: '';
  position: absolute;
  top: 15px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--bg-tertiary);
  z-index: 1;
}

.step-indicator-item {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--bg-secondary);
  border: 2px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  z-index: 2;
  font-size: 0.9rem;
  transition: var(--transition-fast);
}

.step-indicator-item.active {
  background: var(--bg-primary);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  box-shadow: 0 0 10px rgba(225, 29, 72, 0.2);
}

.step-indicator-item.completed {
  background: var(--accent-cyan);
  border-color: var(--accent-cyan);
  color: #080f1d;
}

.wizard-step {
  display: none;
}

.wizard-step.active {
  display: block;
}

.wizard-buttons {
  display: flex;
  justify-content: space-between;
  margin-top: 32px;
  border-top: 1px solid var(--border-color);
  padding-top: 24px;
}

/* Category Filter Tabs on Catalog */
.filter-tabs {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 40px;
}

.filter-tab {
  padding: 10px 20px;
  border-radius: 100px;
  background: rgba(0,0,0,0.02);
  border: 1px solid var(--border-color);
  cursor: pointer;
  font-weight: 500;
  transition: var(--transition-fast);
}

.filter-tab:hover,
.filter-tab.active {
  background: rgba(225, 29, 72, 0.08);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

.search-bar-wrapper {
  max-width: 500px;
  margin: 0 auto 40px;
  position: relative;
}

.search-input {
  width: 100%;
  padding: 14px 20px 14px 48px;
  background: rgba(0,0,0,0.02);
  border: 1px solid var(--border-color);
  border-radius: 100px;
  color: var(--text-primary);
  transition: var(--transition-fast);
}

.search-input:focus {
  border-color: var(--accent-cyan);
  background: rgba(0,0,0,0.04);
}

.search-icon {
  position: absolute;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-secondary);
}

.search-icon svg {
  width: 18px;
  height: 18px;
}

/* Dynamic product specifications table */
.spec-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 16px;
}

.spec-table th,
.spec-table td {
  padding: 12px;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.spec-table th {
  color: var(--text-secondary);
  font-weight: 600;
}

.spec-table tr:hover td {
  background: rgba(0,0,0,0.02);
}

/* ==========================================================================
   TEKNOCITY ADAPTED PREMIUM LAYOUT STYLES
   ========================================================================== */

/* Main layout with sidebar */
.main-layout {
  display: flex;
  min-height: calc(100vh - 80px);
  position: relative;
  margin-top: 80px;
}

.main-content {
  flex: 1;
  min-width: 0;
  padding: 40px 0;
}

/* Collapsible Sidebar styles */
.sidebar {
  position: sticky;
  top: 80px;
  height: calc(100vh - 80px);
  width: 80px;
  background-color: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  overflow-y: auto;
  overflow-x: hidden;
  z-index: 900;
  display: flex;
  flex-direction: column;
  padding: 24px 0;
}

.sidebar:hover {
  width: 260px;
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 100%;
}

.sidebar-link {
  display: flex;
  align-items: center;
  height: 48px;
  padding: 0 28px;
  color: var(--text-secondary);
  transition: var(--transition-fast);
  border-radius: 0;
  width: 100%;
  white-space: nowrap;
}

.sidebar-link svg {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  transition: var(--transition-fast);
}

.sidebar-text {
  opacity: 0;
  visibility: hidden;
  margin-left: 0;
  transition: opacity 0.2s ease, margin-left 0.2s ease;
  font-weight: 500;
  font-size: 0.95rem;
}

.sidebar:hover .sidebar-text {
  opacity: 1;
  visibility: visible;
  margin-left: 16px;
}

.sidebar-link:hover,
.sidebar-link.active {
  background: rgba(225, 29, 72, 0.06);
  color: var(--accent-cyan);
  border-left: 3px solid var(--accent-cyan);
  padding-left: 25px; /* Offset the border */
}

@media (max-width: 1024px) {
  .sidebar {
    display: none;
  }
  .main-layout {
    margin-top: 80px;
  }
}

/* Card Gradients matching TeknoCity */
.card-gradient-deep-purple {
  background: linear-gradient(135deg, #ffffff 0%, #fdfdfd 100%) !important;
  border-color: rgba(225, 29, 72, 0.12) !important;
}
.card-gradient-green {
  background: linear-gradient(135deg, #ffffff 0%, #fdfdfd 100%) !important;
  border-color: rgba(34, 197, 94, 0.15) !important;
}
.card-gradient-orange {
  background: linear-gradient(135deg, #ffffff 0%, #fdfdfd 100%) !important;
  border-color: rgba(245, 158, 11, 0.15) !important;
}
.card-gradient-purple {
  background: linear-gradient(135deg, #ffffff 0%, #fdfdfd 100%) !important;
  border-color: rgba(168, 85, 247, 0.15) !important;
}
.card-gradient-blue {
  background: linear-gradient(135deg, #ffffff 0%, #fdfdfd 100%) !important;
  border-color: rgba(59, 130, 246, 0.15) !important;
}

.card-gradient-deep-purple:hover {
  transform: translateY(-5px);
  border-color: rgba(225, 29, 72, 0.6) !important;
  box-shadow: 0 12px 30px rgba(225, 29, 72, 0.08) !important;
}
.card-gradient-green:hover {
  transform: translateY(-5px);
  border-color: rgba(34, 197, 94, 0.6) !important;
  box-shadow: 0 12px 30px rgba(34, 197, 94, 0.08) !important;
}
.card-gradient-orange:hover {
  transform: translateY(-5px);
  border-color: rgba(245, 158, 11, 0.6) !important;
  box-shadow: 0 12px 30px rgba(245, 158, 11, 0.08) !important;
}
.card-gradient-purple:hover {
  transform: translateY(-5px);
  border-color: rgba(168, 85, 247, 0.6) !important;
  box-shadow: 0 12px 30px rgba(168, 85, 247, 0.08) !important;
}
.card-gradient-blue:hover {
  transform: translateY(-5px);
  border-color: rgba(59, 130, 246, 0.6) !important;
  box-shadow: 0 12px 30px rgba(59, 130, 246, 0.08) !important;
}

/* Hero Section layout - TeknoCity 2/3 and 1/3 card wrapper */
.hero-grid-layout {
  display: flex;
  gap: 20px;
  margin-bottom: 40px;
}

.hero-large-card {
  width: 66.66%;
  display: flex;
  flex-direction: row;
  align-items: center;
  padding: 48px !important;
}

.hero-small-grid {
  width: 33.33%;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.hero-small-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 20px !important;
  justify-content: space-between;
}

.hero-small-card .img-wrap {
  height: 90px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
}

.hero-small-card .img-wrap svg {
  height: 70px;
  width: auto;
  filter: drop-shadow(0 4px 10px rgba(255,255,255,0.15));
}

@media (max-width: 1024px) {
  .hero-grid-layout {
    flex-direction: column;
  }
  .hero-large-card {
    width: 100%;
    flex-direction: column;
    text-align: center;
    padding: 32px !important;
  }
  .hero-small-grid {
    width: 100%;
  }
}

@media (max-width: 480px) {
  .hero-small-grid {
    grid-template-columns: 1fr;
  }
}

/* Search KBD badge in header */
.search-kbd {
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 2px 6px;
  font-family: monospace;
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-left: auto;
}

/* Star rating styles */
.star-rating {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: #ffaa00;
  font-weight: 600;
  font-size: 0.85rem;
  margin-top: 8px;
}

.star-rating svg {
  width: 14px;
  height: 14px;
  fill: currentColor;
}

/* Badge styling */
.badge-tag {
  position: absolute;
  top: 16px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 4px 12px;
  border-radius: 100px;
  text-transform: uppercase;
  z-index: 10;
}

.badge-new {
  left: 16px;
  background: var(--accent-cyan);
  color: #080f1d;
}

.badge-sale {
  right: 16px;
  background: #e63946;
  color: #fff;
}

/* Categories explorer grids */
.category-explorer-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
  margin-top: 24px;
}

.category-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px !important;
  text-align: center;
  cursor: pointer;
}

.category-card-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.03);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-cyan);
  margin-bottom: 12px;
  transition: var(--transition-fast);
  border: 1px solid var(--border-color);
}

.category-card:hover .category-card-icon {
  background: var(--accent-cyan);
  color: #080f1d;
  box-shadow: 0 0 15px rgba(225, 29, 72, 0.3);
}

@media (max-width: 1024px) {
  .category-explorer-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 640px) {
  .category-explorer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Search Modal Overlay styling */
.search-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(248, 249, 250, 0.85);
  backdrop-filter: blur(12px);
  z-index: 2500;
  display: none;
  align-items: flex-start;
  justify-content: center;
  padding-top: 10vh;
}

.search-modal-overlay.active {
  display: flex;
}

.search-modal-content {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  width: 100%;
  max-width: 600px;
  border-radius: var(--border-radius-md);
  box-shadow: 0 25px 50px rgba(0,0,0,0.08);
  padding: 24px;
}

.search-modal-results {
  margin-top: 20px;
  max-height: 300px;
  overflow-y: auto;
}

.search-result-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  transition: var(--transition-fast);
}

.search-result-item:hover {
  background: rgba(0,0,0,0.03);
}

.search-result-item svg {
  width: 36px;
  height: 36px;
}

/* ==========================================================================
   RESPONSIVE MOBILE ENHANCEMENTS
   ========================================================================== */

.header-search-container {
  flex-grow: 1;
  max-width: 320px;
  margin: 0 32px;
  display: flex;
}

.mobile-search-btn {
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition-fast);
  margin-right: 12px;
}

.mobile-search-btn:hover {
  background: rgba(225, 29, 72, 0.08);
  color: var(--accent-cyan);
  border-color: var(--accent-cyan);
}

.mobile-search-btn svg {
  width: 20px;
  height: 20px;
}

/* Morphing hamburger menu icon toggle */
.menu-toggle {
  position: relative;
  width: 24px;
  height: 18px;
  display: none;
  flex-direction: column;
  justify-content: space-between;
  z-index: 1002;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--text-primary);
  border-radius: 2px;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s ease;
}

.menu-toggle.open span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

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

.menu-toggle.open span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* Overlay Navigation menu structure */
@media (max-width: 1024px) {
  .nav-container {
    height: 70px;
  }

  .header-search-container {
    display: none !important;
  }
  
  .mobile-search-btn {
    display: flex !important;
  }

  .logo span {
    font-size: 1.3rem;
  }

  .nav-links {
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    height: calc(100vh - 70px);
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding-top: 60px;
    gap: 24px;
    list-style: none;
    z-index: 1001;
    visibility: hidden;
    opacity: 0;
    transform: translateY(-20px);
    transition: opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1), transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), visibility 0.3s;
    border-top: 1px solid var(--border-color);
  }

  .nav-links.active {
    visibility: visible;
    opacity: 1;
    transform: translateY(0);
  }

  .nav-links li {
    width: 100%;
    text-align: center;
  }

  .nav-links a {
    font-size: 1.25rem;
    font-weight: 600;
    display: block;
    padding: 12px 0;
  }

  .nav-container {
    padding: 0 16px !important;
  }

  .logo {
    order: 1;
  }

  .mobile-search-btn {
    order: 2;
    margin-right: 0 !important;
  }

  .header-actions-group {
    order: 3;
    margin-left: auto !important;
    margin-right: 8px !important;
    gap: 10px !important;
    display: flex !important;
    align-items: center !important;
  }

  .header-actions-group .nav-btn,
  .header-actions-group .member-dropdown-toggle {
    position: relative !important;
    padding: 0 !important;
    font-size: 1.1rem !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    border-radius: 50% !important;
    width: 38px !important;
    height: 38px !important;
    border: 1px solid var(--border-color) !important;
    background: rgba(255, 255, 255, 0.03) !important;
    box-shadow: none !important;
    margin: 0 !important;
  }

  .header-actions-group .nav-btn #cart-badge {
    position: absolute !important;
    top: -2px !important;
    right: -2px !important;
    margin: 0 !important;
    padding: 2px 6px !important;
    font-size: 0.65rem !important;
    background: var(--accent-cyan) !important;
    color: white !important;
    border-radius: 50% !important;
    height: 16px !important;
    min-width: 16px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    line-height: 1 !important;
    z-index: 10 !important;
  }

  .cart-text, .member-btn-text {
    display: none !important;
  }

  .menu-toggle {
    order: 4;
    display: flex !important;
    margin-left: 4px !important;
  }
}

/* Simulator Grid Media Query helper */
.simulator-container-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 48px;
  align-items: center;
}

@media (max-width: 968px) {
  .simulator-container-grid {
    grid-template-columns: 1fr !important;
    padding: 32px !important;
    gap: 32px !important;
  }
}

/* ==========================================================================
   GÜÇLENDIRILMIŞ MOBİL UYUM
   ========================================================================== */

html { font-size: clamp(14px, 2.5vw, 16px); }

@media (max-width: 768px) {
  .hero { padding-top: 100px; min-height: auto; padding-bottom: 60px; }
  .hero-title { font-size: clamp(2rem, 8vw, 3.5rem); }
  .hero-desc { font-size: 1rem; }
  .hero-actions { flex-direction: column; gap: 12px; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .hero-visual { margin-top: 32px; }
  .system-simulation { max-width: 100%; padding: 16px; }
  .nav-container { height: 64px; }
  .nav-links { top: 64px; height: calc(100vh - 64px); }
  .grid-3 { grid-template-columns: 1fr 1fr; gap: 16px; }
  .glass-card { padding: 20px; }
  .product-image { height: 180px; }
  .product-footer { flex-direction: column; align-items: flex-start; gap: 12px; }
  .product-footer .btn { width: 100%; text-align: center; justify-content: center; }
  .hero-large-card { flex-direction: column; text-align: center; padding: 24px !important; }
  .hero-small-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .cart-text {
    display: none;
  }
  .nav-btn {
    padding: 8px 12px !important;
  }
  .container { padding: 0 16px; }
  .section-padding { padding: 48px 0; }
  .section-title { font-size: clamp(1.5rem, 6vw, 2.5rem); }
  .section-title-wrapper { margin-bottom: 32px; }
  .calc-wrapper { padding: 20px; gap: 24px; }
  .calc-title { font-size: 1.5rem; }
  .spec-table { display: block; overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .filter-tabs { gap: 8px; justify-content: flex-start; overflow-x: auto; padding-bottom: 8px; flex-wrap: nowrap; -webkit-overflow-scrolling: touch; scrollbar-width: none; }
  .filter-tabs::-webkit-scrollbar { display: none; }
  .filter-tab { white-space: nowrap; flex-shrink: 0; padding: 8px 14px; font-size: 0.85rem; }
  .modal-body { padding: 20px; }
  .quote-wizard { padding: 20px; }
  .wizard-buttons { flex-direction: column; gap: 12px; }
  .wizard-buttons .btn { width: 100%; justify-content: center; }
  .search-modal-content { padding: 16px; margin: 0 16px; }
}

@media (max-width: 480px) {
  .hero-title { font-size: clamp(1.7rem, 7vw, 2.5rem); }
  .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .product-image { height: 220px; }
  .about-stats { flex-direction: column; gap: 32px; }
  .about-features { grid-template-columns: 1fr; }
  .stat-num { font-size: 2.2rem; }
  .modal-content { max-height: 95vh; border-radius: var(--border-radius-md) var(--border-radius-md) 0 0; position: fixed; bottom: 0; left: 0; right: 0; }
  .hero-small-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .hero-small-card { padding: 12px 8px !important; }
  .hero-small-card .img-wrap { height: 60px; margin-bottom: 6px; }
  .hero-small-card .img-wrap svg { height: 45px; }
  .hero-small-card h4 { font-size: 0.85rem; }
}

@media (hover: none) {
  .glass-card:hover { transform: none; }
  .btn:hover { transform: none; }
}

/* ==========================================================================
   PRODUCT DETAIL RESPONSIVE CLASSES
   ========================================================================== */
.detail-layout {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 40px;
  align-items: start;
}

.detail-visuals {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.detail-img-card {
  padding: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 440px;
  border: 1px solid var(--border-color);
  overflow: hidden;
  position: relative;
}

.detail-features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.detail-info-card {
  padding: 40px;
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.detail-title {
  font-family: var(--font-heading);
  font-size: 2.8rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 8px;
}

.detail-price-wrap {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-top: 12px;
}

.detail-price {
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent-cyan);
  font-family: var(--font-heading);
}

.detail-btn-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.detail-specs-card {
  padding: 40px;
  border: 1px solid var(--border-color);
}

@media (max-width: 968px) {
  .detail-layout {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .detail-title {
    font-size: 2rem;
  }
}

@media (max-width: 640px) {
  .detail-img-card {
    height: 300px;
    padding: 24px;
  }
  .detail-info-card, .detail-specs-card {
    padding: 24px 16px;
    gap: 16px;
  }
  .detail-btn-group {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .detail-features-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }
}

/* Custom Notification Toast System */
.custom-toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 99999;
  display: flex;
  flex-direction: column;
  gap: 12px;
  pointer-events: none;
}

.custom-toast {
  pointer-events: auto;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  padding: 20px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
  width: 360px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transform: translateX(120%);
  opacity: 0;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.3s ease;
}

.custom-toast.active {
  transform: translateX(0);
  opacity: 1;
}

.custom-toast-header {
  display: flex;
  align-items: center;
  gap: 12px;
}

.custom-toast-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(16, 185, 129, 0.1);
  color: #10b981;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  flex-shrink: 0;
}

.custom-toast-title {
  font-weight: 700;
  color: var(--text-primary);
  font-size: 1rem;
  font-family: var(--font-heading);
}

.custom-toast-body {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.4;
}

.custom-toast-actions {
  display: flex;
  gap: 8px;
  margin-top: 4px;
}

.custom-toast-btn {
  flex: 1;
  padding: 8px 12px;
  font-size: 0.8rem;
  font-weight: 600;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  text-align: center;
  transition: var(--transition-fast);
  text-decoration: none;
}

.custom-toast-btn-primary {
  background: var(--accent-cyan);
  color: white;
  border-color: var(--accent-cyan);
}

.custom-toast-btn-primary:hover {
  background: var(--accent-blue);
  border-color: var(--accent-blue);
}

.custom-toast-btn-secondary {
  background: var(--bg-primary);
  color: var(--text-primary);
}

.custom-toast-btn-secondary:hover {
  background: var(--bg-tertiary);
}

/* Skeleton Loading Shimmer CSS */
@keyframes shimmer {
  0% { opacity: 0.3; }
  50% { opacity: 0.75; }
  100% { opacity: 0.3; }
}

.skeleton-shimmer {
  animation: shimmer 1.5s infinite ease-in-out;
  background-image: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0.03) 0px,
    rgba(255, 255, 255, 0.08) 40px,
    rgba(255, 255, 255, 0.03) 80px
  );
  background-size: 200px 100%;
}

/* Floating WhatsApp Button */
.whatsapp-btn {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background-color: #25d366;
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  z-index: 9999;
}

.whatsapp-btn:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 16px rgba(37, 211, 102, 0.6);
  color: white;
}

.whatsapp-btn svg {
  width: 32px;
  height: 32px;
}