:root {
  /* Barbie Palette */
  --barbie-pink: #e0218a;
  --barbie-light: #ff66b2;
  --barbie-bg: #ffe6f2;
  
  /* Taxi Palette */
  --taxi-yellow: #ffcc00;
  --taxi-black: #111111;
  --taxi-checker: repeating-conic-gradient(#111 0% 25%, #fff 0% 50%) 50% / 40px 40px;

  /* Neutrals */
  --white: #ffffff;
  --text-dark: #2a2a2a;
  --gray-light: #f5f5f5;

  /* Utility */
  --border-radius: 16px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: 'Outfit', sans-serif;
  color: var(--text-dark);
  background-color: var(--barbie-bg);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Typography */
h1, h2, h3 {
  font-weight: 800;
  line-height: 1.2;
}

h2 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  color: var(--taxi-black);
}

p {
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
  color: #555;
}

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

/* Utilities */
.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
}

.text-center {
  text-align: center;
}

.section {
  padding: 5rem 0;
}

.pink-text {
  color: var(--barbie-pink);
}

.yellow-text {
  color: var(--taxi-yellow);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 1rem 2rem;
  font-size: 1.2rem;
  font-weight: 700;
  border-radius: 50px;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.btn-primary {
  background-color: var(--barbie-pink);
  color: var(--white);
  box-shadow: 0 8px 20px rgba(224, 33, 138, 0.4);
}

.btn-primary:hover {
  background-color: var(--barbie-light);
  transform: translateY(-3px);
  box-shadow: 0 12px 25px rgba(224, 33, 138, 0.6);
}

.btn-taxi {
  background-color: var(--taxi-yellow);
  color: var(--taxi-black);
  box-shadow: 0 8px 20px rgba(255, 204, 0, 0.4);
}

.btn-taxi:hover {
  background-color: #ffe066;
  transform: translateY(-3px);
  box-shadow: 0 12px 25px rgba(255, 204, 0, 0.6);
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: 1.5rem 0;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  border-bottom: 2px solid var(--barbie-pink);
  transition: var(--transition);
}

.header.scrolled {
  padding: 1rem 0;
  box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 2rem;
  font-weight: 900;
  color: var(--barbie-pink);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo span {
  color: var(--taxi-black);
  background-color: var(--taxi-yellow);
  padding: 0.2rem 0.6rem;
  border-radius: 8px;
}

.call-now {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--taxi-black);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Hero Section */
.hero {
  padding: 10rem 0 6rem;
  background: linear-gradient(135deg, var(--barbie-bg) 0%, #fff 100%);
  position: relative;
  overflow: hidden;
}

.checker-line {
  height: 20px;
  width: 100%;
  background: var(--taxi-checker);
  position: absolute;
  top: 0;
  left: 0;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 3rem;
  position: relative;
  z-index: 10;
}

.hero-content h1 {
  font-size: 3.5rem;
  margin-bottom: 1.5rem;
  color: var(--taxi-black);
}

.highlight-pink {
  color: var(--barbie-pink);
  text-shadow: 2px 2px 0px var(--taxi-yellow);
}

.hero-content p {
  font-size: 1.3rem;
  margin-bottom: 2.5rem;
}

.hero-buttons {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.hero-image {
  position: relative;
}

.hero-image::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 120%;
  height: 120%;
  background: radial-gradient(circle, var(--taxi-yellow) 0%, transparent 60%);
  z-index: -1;
  opacity: 0.2;
}

.hero-image img {
  width: 100%;
  max-width: 500px;
  height: auto;
  border-radius: var(--border-radius);
  animation: floating 3s ease-in-out infinite;
}

@keyframes floating {
  0% { transform: translateY(0); }
  50% { transform: translateY(-15px); }
  100% { transform: translateY(0); }
}

/* Features */
.features {
  background-color: var(--white);
  position: relative;
}

.features::before {
  content: '';
  position: absolute;
  top: -20px;
  left: 0;
  width: 100%;
  height: 20px;
  background: var(--taxi-checker);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.feature-card {
  background: var(--white);
  padding: 3rem 2rem;
  border-radius: var(--border-radius);
  text-align: center;
  box-shadow: 0 10px 40px rgba(0,0,0,0.05);
  border: 2px solid transparent;
  transition: var(--transition);
}

.feature-card:hover {
  border-color: var(--barbie-pink);
  transform: translateY(-10px);
}

.feature-icon {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background-color: var(--barbie-bg);
  color: var(--barbie-pink);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  margin: 0 auto 1.5rem;
  transition: var(--transition);
}

.feature-card:hover .feature-icon {
  background-color: var(--taxi-yellow);
  color: var(--taxi-black);
}

/* Regions */
.regions {
  background-color: var(--barbie-pink);
  color: var(--white);
}

.regions h2 {
  color: var(--white);
}

.regions p {
  color: rgba(255, 255, 255, 0.9);
}

.region-main {
  display: flex;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
  margin: 3rem 0;
}

.region-badge {
  background-color: var(--taxi-yellow);
  color: var(--taxi-black);
  padding: 1rem 2rem;
  border-radius: 50px;
  font-size: 1.5rem;
  font-weight: 800;
  box-shadow: 0 8px 20px rgba(0,0,0,0.15);
}

/* Istanbul Districts */
.districts-container {
  background-color: rgba(255,255,255,0.1);
  border-radius: var(--border-radius);
  padding: 2rem;
  margin-top: 3rem;
}

.districts-container h3 {
  font-size: 1.8rem;
  margin-bottom: 1.5rem;
  color: var(--taxi-yellow);
  text-align: center;
}

.districts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 1rem;
}

.district-item {
  background-color: rgba(255,255,255,0.9);
  color: var(--barbie-pink);
  padding: 0.8rem;
  border-radius: 8px;
  text-align: center;
  font-weight: 700;
  font-size: 0.95rem;
  transition: var(--transition);
}

.district-item:hover {
  background-color: var(--taxi-yellow);
  color: var(--taxi-black);
}

/* Footer & CTA */
.cta-section {
  background-color: var(--taxi-black);
  color: var(--white);
  text-align: center;
  padding: 6rem 0;
  position: relative;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -20px;
  left: 0;
  width: 100%;
  height: 20px;
  background: var(--taxi-checker);
}

.cta-section h2 {
  color: var(--white);
  font-size: 3rem;
}

.huge-number {
  font-size: 4rem;
  font-weight: 900;
  color: var(--taxi-yellow);
  margin: 2rem 0;
  display: inline-block;
}

.footer {
  background-color: #050505;
  color: #888;
  padding: 2rem 0;
  text-align: center;
}

/* Floating Action Button */
.fab {
  position: fixed;
  bottom: 30px;
  right: 30px;
  background-color: #25D366; /* WhatsApp Green */
  color: white;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  box-shadow: 0 10px 30px rgba(37, 211, 102, 0.4);
  z-index: 1000;
  transition: var(--transition);
  animation: pulse 2s infinite;
}

.fab:hover {
  transform: scale(1.1);
  background-color: #128C7E;
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7); }
  70% { box-shadow: 0 0 0 20px rgba(37, 211, 102, 0); }
  100% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0); }
}

/* Reponsive */
@media (max-width: 900px) {
  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero-buttons {
    justify-content: center;
  }

  .hero-content h1 {
    font-size: 2.5rem;
  }
  
  .huge-number {
    font-size: 2.5rem;
  }
  
  .header .call-now {
    font-size: 1rem;
  }
}

@media (max-width: 480px) {
  .hero-buttons {
    flex-direction: column;
  }
  .btn {
    width: 100%;
  }
}