:root {
  --bg: #f9f9f9;
  --text: #1c1c1c;
  --accent: #d4af37;
  --card-bg: #fff;
  --header-bg: #121212;
  --footer-bg: #121212;
  --green: #4CAF50;
  --yellow: #FFB300;
  --red: #f44336;
  --black: #333;
  --grey: #757575;
  --blue: #007BFF;
}

[data-theme="dark"] {
  --bg: #1e1e1e;
  --text: #eaeaea;
  --accent: #ffd700;
  --card-bg: #2c2c2c;
  --header-bg: #000;
  --footer-bg: #000;
}

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

body {
  font-family: 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  scroll-behavior: smooth;
}

.container {
  max-width: 1200px;
  margin: auto;
  padding: 1rem;
}

header {
  background: var(--header-bg);
  color: #fff;
  padding: 2rem 0 1rem;
  text-align: center;
  box-shadow: 0 10px 20px rgba(0,0,0,0.5);
  border-bottom: 2px solid var(--accent);
}

.logo {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: 1px;
}

nav ul {
  display: flex;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
  margin-top: 1rem;
  list-style: none;
}

nav a, #mode-toggle {
  color: #fff;
  text-decoration: none;
  font-weight: bold;
  font-size: 1rem;
  background: none;
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
}

nav a:hover, #mode-toggle:hover {
  color: var(--accent);
}

.hero-banner {
  width: 100%;
  border-radius: 1rem;
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.5);
  margin: 2rem 0;
}

section {
  padding: 3rem 0;
}

h2 {
  text-align: center;
  font-size: 2.2rem;
  color: var(--accent);
  margin-bottom: 1.5rem;
}

p {
  line-height: 1.7;
  margin-bottom: 1rem;
}

.case-stats {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  margin-top: 2rem;
}

.card {
  background: var(--card-bg);
  padding: 1.5rem;
  border-radius: 1rem;
  text-align: center;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.25);
  transform: perspective(600px) rotateX(0deg) scale(1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  transform: perspective(600px) rotateX(2deg) scale(1.03);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.35);
}

.card.green { background: var(--green); color: #fff; }
.card.yellow { background: var(--yellow); color: #000; }
.card.blue { background: var(--blue); color: #fff; }
.card.red { background: var(--red); color: #fff; }
.card.black { background: var(--black); color: #fff; }
.card.grey { background: var(--grey); color: #fff; }

.availability ul {
  list-style: none;
  margin-top: 0.5rem;
}

.availability h4 {
  margin-bottom: 0.5rem;
  color: var(--accent);
}

.services-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  margin-top: 2rem;
}

footer {
  background: var(--footer-bg);
  color: #fff;
  text-align: center;
  padding: 1rem 0;
  box-shadow: 0 -10px 20px rgba(0, 0, 0, 0.4);
}

.whatsapp-float {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: #25D366;
  color: #fff;
  padding: 15px;
  font-size: 24px;
  border-radius: 50%;
  text-decoration: none;
  z-index: 1000;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
  transition: transform 0.3s;
}

.whatsapp-float:hover {
  transform: scale(1.1);
}