:root {
  --bg: #020617;
  --card: #0f172a;
  --primary: #3b82f6;
  --accent: #22d3ee;
  --text: #e5e7eb;
}

* {
  box-sizing: border-box;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", system-ui, sans-serif;
  background: radial-gradient(circle at top, #020617, #000);
  color: var(--text);
}

/* ===== NAVBAR ===== */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(2,6,23,0.95);
  backdrop-filter: blur(10px);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 22px;
}

.logo {
  font-weight: bold;
  font-size: 18px;
}

/* DESKTOP MENU */
.desktop-menu {
  display: flex;
  align-items: center;
  gap: 20px;
}

.desktop-menu a {
  color: #e5e7eb;
  text-decoration: none;
  font-weight: 600;
}

.desktop-menu select {
  background: #0f172a;
  color: white;
  border: none;
  padding: 6px 8px;
  border-radius: 6px;
}

/* HAMBURGER */
.hamburger {
  display: none;
  font-size: 28px;
  cursor: pointer;
}

/* MOBILE MENU */
.mobile-menu {
  display: none;
  flex-direction: column;
  background: #020617;
  padding: 20px;
}

.mobile-menu a {
  color: white;
  text-decoration: none;
  padding: 14px 0;
  font-size: 18px;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .desktop-menu {
    display: none;
  }

  .hamburger {
    display: block;
  }
}

select {
  background: var(--card);
  color: white;
  border: none;
  padding: 6px;
  border-radius: 6px;
}

/* HERO */
.hero {
  min-height: 85vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 40px 20px;
  animation: fadeUp 1s ease;
}

.hero h1 {
  font-size: 48px;
  max-width: 900px;
}

.hero p {
  max-width: 650px;
  font-size: 18px;
  opacity: .85;
}

.btn {
  margin-top: 30px;
  padding: 14px 30px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: black;
  border-radius: 10px;
  text-decoration: none;
  font-weight: bold;
  transition: transform .3s, box-shadow .3s;
}

.btn:hover {
  transform: translateY(-4px);
  box-shadow: 0 15px 40px rgba(34,211,238,.4);
}

/* SECTIONS */
.section {
  max-width: 1200px;
  margin: auto;
  padding: 80px 20px;
}

.section h2 {
  text-align: center;
  font-size: 36px;
  margin-bottom: 50px;
}

/* CARDS */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px,1fr));
  gap: 30px;
}

.card {
  background: linear-gradient(180deg, #0f172a, #020617);
  border-radius: 18px;
  padding: 30px;
  box-shadow: 0 20px 60px rgba(0,0,0,.5);
  transition: transform .4s, box-shadow .4s;
  animation: fadeUp .8s ease forwards;
}

.card:hover {
  transform: translateY(-10px) scale(1.02);
  box-shadow: 0 30px 90px rgba(59,130,246,.4);
}

.card h3 {
  margin-top: 0;
  color: var(--accent);
}

/* FORM */
form {
  max-width: 520px;
  margin: auto;
}

input, textarea {
  width: 100%;
  padding: 14px;
  margin-bottom: 16px;
  border-radius: 10px;
  border: none;
  background: #020617;
  color: white;
}

/* WHATSAPP */
.whatsapp {
  position: fixed;
  right: 15px;
  bottom: 15px;
  background: #25d366;
  padding: 10px 14px;
  border-radius: 40px;
  text-decoration: none;
  color: black;
  font-size: 14px;
  font-weight: bold;
  box-shadow: 0 6px 20px rgba(37,211,102,.5);
}

/* Smaller on phone */
@media (max-width: 600px) {
  .whatsapp {
    padding: 8px 12px;
    font-size: 13px;
  }
}

.footer {
  background: #000;
  color: #e5e7eb;
  text-align: center;
  padding: 22px 15px;
  font-size: 14px;
}

.footer a {
  display: block;
  margin-top: 6px;
  color: #22d3ee;
  text-decoration: none;
  font-weight: 600;
}

/* ANIMATIONS */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* MOBILE */
@media(max-width:600px){
  .hero h1 { font-size: 32px; }
}

/* NAV FIX */
.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* HAMBURGER */
.menu-btn {
  background: none;
  border: none;
  font-size: 26px;
  color: white;
  cursor: pointer;
  display: none;
}

/* MOBILE MENU */
.mobile-menu {
  display: none;
  flex-direction: column;
  background: #020617;
  padding: 20px;
}

.mobile-menu a {
  color: white;
  text-decoration: none;
  padding: 12px 0;
  font-size: 18px;
}

/* SHOW ON MOBILE */
@media (max-width: 768px) {
  .menu-btn {
    display: block;
  }
}

/* TOAST NOTIFICATION */
.toast {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, #22d3ee, #3b82f6);
  color: black;
  padding: 14px 24px;
  border-radius: 12px;
  font-weight: bold;
  display: none;
  box-shadow: 0 10px 40px rgba(0,0,0,.4);
  z-index: 999;
}