/* ========== Reset & Base ========== */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background: #000; /* black page background */
  font-family: Arial, Helvetica, sans-serif;
  min-height: 100vh;
}

/* ========== Navbar ========== */
.navbar {
  background: #18c964;
  padding: 14px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  color: #000;
}

.brand img {
  height: 58px; /* bigger logo */
}

.brand .title {
  font-size: 22px;
  font-weight: 900;
}

/* Nav links */
.nav-links {
  list-style: none;
  display: flex;
  gap: 18px;
}

.nav-links a {
  text-decoration: none;
  color: #000;
  font-weight: 800;
  padding: 10px 14px;
  border-radius: 12px;
}

.nav-links a:hover,
.nav-links a.active {
  background: rgba(0,0,0,0.2);
}

/* Mobile menu */
.menu-btn {
  display: none;
}

@media (max-width: 760px) {
  .menu-btn {
    display: block;
    background: rgba(0,0,0,0.15);
    border: none;
    padding: 10px 14px;
    font-weight: 900;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 80px;
    left: 20px;
    right: 20px;
    background: #18c964;
    padding: 14px;
    border-radius: 18px;
    flex-direction: column;
  }

  .nav-links.show {
    display: flex;
  }
}

/* ========== Layout ========== */
.container {
  max-width: 1100px;
  margin: 35px auto;
  padding: 0 20px;
}

/* ===== WHITE MAIN PANEL (3D) ===== */
.content-panel {
  background: #ffffff;
  border-radius: 26px;
  padding: 36px;
  box-shadow:
    0 30px 60px rgba(0,0,0,0.55),
    0 10px 20px rgba(0,0,0,0.2);
}

/* Text inside panel */
.content-panel h1 {
  color: #000;
  font-size: 36px;
  margin-bottom: 10px;
}

.content-panel h2 {
  color: #000;
  margin-bottom: 6px;
}

.content-panel p {
  color: #000;
  line-height: 1.6;
}

/* ===== GREEN 3D CARDS ===== */
.card {
  background: #18c964;
  border-radius: 20px;
  padding: 22px;
  margin-top: 20px;
  box-shadow:
    0 16px 30px rgba(0,0,0,0.35),
    inset 0 0 0 1px rgba(0,0,0,0.15);
  transform: translateY(0);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

/* Card hover = more 3D */
.card:hover {
  transform: translateY(-4px);
  box-shadow:
    0 24px 40px rgba(0,0,0,0.45),
    inset 0 0 0 1px rgba(0,0,0,0.2);
}

/* Card text */
.card h2 {
  color: #000;
  font-weight: 900;
}

.card p {
  color: #083b1f;
  font-weight: 600;
}

/* ===== Forms ===== */
.form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.form label {
  font-weight: 800;
  color: #000;
}

.form input {
  padding: 12px;
  border-radius: 12px;
  border: 1px solid #333;
  background: #fff;
  color: #000;
}

.form input:focus {
  outline: none;
  border-color: #18c964;
}

/* Buttons */
.btn {
  background: #000;
  color: #fff;
  font-weight: 900;
  padding: 12px;
  border-radius: 12px;
  border: none;
  cursor: pointer;
  transition: transform 0.12s ease, opacity 0.12s ease;
}

.btn:hover {
  transform: translateY(-1px);
  opacity: 0.9;
}

.btn.danger {
  background: #ff4d4d;
}

/* Messages */
.msg {
  font-weight: 800;
  margin-top: 6px;
  color: #000;
}