/* =====================
   RESET & BASE
===================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Inter", system-ui, sans-serif;
}

body {
  background: #0b0f19;
  color: #e6e8ec;
  line-height: 1.7;
}

/* =====================
   NAVIGATION
===================== */
nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(11, 15, 25, 0.8);
  backdrop-filter: blur(12px);
  padding: 18px 0;
  text-align: center;
}

nav a {
  color: #cfd3da;
  margin: 0 22px;
  text-decoration: none;
  font-weight: 600;
  font-size: 15px;
  position: relative;
}

nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 0%;
  height: 2px;
  background: #4fd1c5;
  transition: width 0.3s ease;
}

nav a:hover {
  color: #ffffff;
}

nav a:hover::after {
  width: 100%;
}

/* =====================
   HERO
===================== */
header {
  min-height: 92vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  overflow: hidden;

  /* Hintergrundbild + Verdunkelung */
  background: 
    linear-gradient(rgba(11, 15, 25, 0.6), rgba(11, 15, 25, 0.6)),
    url('hero-bg.jpg') center/cover no-repeat;

  color: #e6e8ec;
}

.header-content {
  max-width: 900px;
  padding: 40px;
  animation: fadeUp 1.2s ease forwards;
}

header h1 {
  font-size: 64px;
  letter-spacing: -1.5px;
  margin-bottom: 25px;
}

header p {
  font-size: 22px;
  color: #b5bac4;
  margin-bottom: 40px;
}

/* =====================
   BUTTON
===================== */
.btn {
  display: inline-block;
  padding: 15px 38px;
  background: linear-gradient(135deg, #4fd1c5, #63e6be);
  color: #081218;
  font-weight: 700;
  border-radius: 50px;
  text-decoration: none;
  box-shadow: 0 20px 50px rgba(79, 209, 197, 0.35);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.btn:hover {
  transform: translateY(-4px);
  box-shadow: 0 30px 70px rgba(79, 209, 197, 0.5);
}

/* =====================
   SECTIONS
===================== */
.section {
  max-width: 1150px;
  margin: auto;
  padding: 110px 20px;
}

.section h2 {
  font-size: 42px;
  margin-bottom: 25px;
}

.section p {
  color: #b5bac4;
  max-width: 800px;
  margin-bottom: 18px;
}

/* =====================
   CARDS
===================== */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 35px;
  margin-top: 50px;
}

.card {
  background: linear-gradient(180deg, #151a2b, #0f1424);
  border-radius: 20px;
  padding: 40px;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.45);
  transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.card h3 {
  font-size: 22px;
  margin-bottom: 15px;
}

.card p {
  color: #aeb4c2;
}

.card:hover {
  transform: translateY(-10px);
  box-shadow: 0 40px 80px rgba(0, 0, 0, 0.65);
}

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

/* =====================
   RESERVATION FORM
===================== */
.reservation-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 40px;
  margin-top: 40px;
}

.form-group {
  display: flex;
  flex-direction: column;
  margin-bottom: 20px;
}

.form-group label {
  font-size: 14px;
  margin-bottom: 8px;
  color: #b5bac4;
}

.form-group input,
.form-group textarea {
  background: #0f1424;
  border: 1px solid #1f2540;
  border-radius: 12px;
  padding: 14px 16px;
  color: #ffffff;
  font-size: 15px;
  transition: border 0.3s ease, box-shadow 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: #4fd1c5;
  box-shadow: 0 0 0 3px rgba(79, 209, 197, 0.2);
}

/* =====================
   RESPONSIVE ADJUSTMENTS
===================== */

/* Reservation form on mobile */
@media (max-width: 900px) {
  .reservation-grid {
    grid-template-columns: 1fr;
  }
}

/* Tablet adjustments */
@media (max-width: 1024px) {
  header h1 {
    font-size: 48px;
  }
  header p {
    font-size: 18px;
  }
  .btn {
    padding: 14px 32px;
    font-size: 15px;
  }
  .section h2 {
    font-size: 36px;
  }
  .section p {
    font-size: 16px;
  }
  .card h3 {
    font-size: 20px;
  }
  .card p {
    font-size: 15px;
  }
  nav a {
    font-size: 14px;
    margin: 0 16px;
  }
}

/* Mobile adjustments */
@media (max-width: 768px) {
  header {
    min-height: 60vh;
    padding: 15px;
  }
  .header-content {
    padding: 20px;
  }
  header h1 {
    font-size: 32px;
  }
  header p {
    font-size: 16px;
  }
  .btn {
    padding: 12px 28px;
    font-size: 14px;
  }
  .section {
    padding: 60px 15px;
  }
  .section h2 {
    font-size: 30px;
  }
  .section p {
    font-size: 15px;
  }
  .cards {
    gap: 25px;
  }
  .card {
    padding: 25px;
  }
  .card h3 {
    font-size: 18px;
  }
  .card p {
    font-size: 14px;
  }
  nav a {
    font-size: 13px;
    margin: 0 12px;
  }
}

/* Very small mobile adjustments */
@media (max-width: 480px) {
  header h1 {
    font-size: 24px;
  }
  header p {
    font-size: 14px;
  }
  .btn {
    padding: 10px 24px;
    font-size: 13px;
  }
  .section h2 {
    font-size: 24px;
  }
  .section p {
    font-size: 13px;
  }
  .card h3 {
    font-size: 16px;
  }
  .card p {
    font-size: 12px;
  }
  nav a {
    font-size: 12px;
    margin: 0 8px;
  }
}