/* ====== Global Styles ====== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

body {
  background: #f5f7fa;
  color: #333;
  line-height: 1.6;
}

/* ====== Navbar ====== */
header {
  background: #1e2a38;
  padding: 0.8rem 1.5rem;
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
}

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

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand img.logo {
  width: 45px;
  height: auto;
}

.brand-name {
  font-size: 1.4rem;
  font-weight: 700;
  color: #ffffff;
  display: block;
}

.brand-tagline {
  font-size: 0.8rem;
  color: #9baab8;
  display: block;
}

.nav-links {
  display: flex;
  gap: 20px;
  list-style: none;
}

.nav-links li a {
  text-decoration: none;
  color: #ffffff;
  font-weight: 500;
  transition: color 0.3s ease;
}

.nav-links li a:hover,
.nav-links li a.active {
  color: #00bcd4;
}

.nav-toggle {
  display: none;
  font-size: 1.8rem;
  color: #ffffff;
  cursor: pointer;
}

/* ====== Hero Section ====== */
.main-bg {
  background: linear-gradient(to right, #00bcd4, #006588);
  padding: 7rem 2rem 4rem;
  text-align: center;
  color: #ffffff;
}

.welcome-section h1 {
  font-size: 2.5rem;
  margin-bottom: 10px;
}

.welcome-section p {
  font-size: 1.1rem;
  opacity: 0.9;
}

/* ====== Modal Styles ====== */
.modal {
  display: none;
  position: fixed;
  z-index: 2000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background: rgba(30, 42, 56, 0.8);
  justify-content: center;
  align-items: center;
}

.modal-content {
  background: #ffffff;
  padding: 2rem;
  border-radius: 8px;
  width: 90%;
  max-width: 400px;
  position: relative;
  animation: fadeIn 0.3s ease-in-out;
}

.modal-content h2 {
  margin-bottom: 1rem;
  color: #1e2a38;
  text-align: center;
}

.modal-content p {
  margin-bottom: 1rem;
}

.close {
  position: absolute;
  right: 15px;
  top: 10px;
  font-size: 1.5rem;
  background: none;
  border: none;
  cursor: pointer;
  color: #555;
}

form input {
  width: 100%;
  padding: 0.8rem;
  margin-bottom: 1rem;
  border: 1px solid #ddd;
  border-radius: 5px;
  outline: none;
  transition: border 0.3s;
}

form input:focus {
  border-color: #00bcd4;
}

.login-btn,
.signup-btn {
  width: 100%;
  padding: 0.9rem;
  border: none;
  border-radius: 5px;
  background: #00bcd4;
  color: #fff;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.3s;
}

.login-btn:hover,
.signup-btn:hover {
  background: #0288a7;
}

.error-message {
  color: red;
  font-size: 0.9rem;
  text-align: center;
}

/* ====== Footer ====== */
footer {
  background: #1e2a38;
  color: #ffffff;
  padding: 1.5rem;
  text-align: center;
  margin-top: 2rem;
}

footer p {
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
}

/* ====== Animations ====== */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* ====== Responsive Design ====== */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    flex-direction: column;
    background: #1e2a38;
    position: absolute;
    top: 60px;
    right: 0;
    width: 200px;
    padding: 1rem;
    border-radius: 0 0 5px 5px;
  }

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

  .nav-toggle {
    display: block;
  }

  .welcome-section h1 {
    font-size: 2rem;
  }

  .welcome-section p {
    font-size: 1rem;
  }
}
/* ====== About Section ====== */
.about-section {
  max-width: 900px;
  margin: 3rem auto;
  padding: 2rem;
  background: #ffffff;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.about-section h2 {
  text-align: center;
  font-size: 2rem;
  color: #1e2a38;
  margin-bottom: 1rem;
}

.about-section p {
  margin-bottom: 1rem;
  font-size: 1rem;
  color: #555;
  line-height: 1.6;
  text-align: justify;
}

@media (max-width: 768px) {
  .about-section {
    margin: 2rem 1rem;
    padding: 1.5rem;
  }

  .about-section h2 {
    font-size: 1.6rem;
  }
}