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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: linear-gradient(135deg, #e0f7fa, #b2ebf2); /* light cyan-blue gradient */
  color: #003049; /* dark blue text */
  padding: 30px 20px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* Navigation */
nav {
  background: #006db3; /* Dark blue background */
  padding: 12px 20px;
  box-shadow: 0 4px 10px rgba(0, 109, 179, 0.4);
  width: 100%;
  max-width: 900px;
  border-radius: 10px;
  margin-bottom: 30px;
}

nav ul {
  list-style: none;
  display: flex;
  justify-content: center;
  gap: 40px;
}

nav ul li a {
  color: #b2ebf2; /* light cyan text */
  font-weight: 600;
  text-decoration: none;
  font-family: 'Inter', sans-serif;
  font-size: 1.1rem;
  transition: color 0.3s ease;
  padding: 6px 12px;
  border-radius: 6px;
}

nav ul li a:hover,
nav ul li a:focus,
nav ul li a[aria-current="page"] {
  color: #00aaff; /* bright cyan highlight */
  text-decoration: underline;
  background: rgba(0, 170, 255, 0.15);
}

/* Header */
header {
  text-align: center;
  max-width: 900px;
  width: 100%;
  margin-bottom: 50px;
}

header h1 {
  font-family: 'Google Sans', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  font-weight: 700;
  font-size: 3.2rem;
  color: #00aaff; /* cyan */
  letter-spacing: 0.05em;
  background: linear-gradient(90deg, #00aaff 0%, #006db3 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: 0 1px 1px rgba(0, 0, 0, 0.1);
  transition: color 0.3s ease;
  margin-bottom: 10px;
}

header h1:hover {
  color: #0094d6;
  -webkit-text-fill-color: unset;
  background: none;
  text-shadow: 0 2px 6px rgba(0, 170, 255, 0.5);
  cursor: default;
}

header .tagline {
  font-weight: 500;
  color: #004466;
  font-size: 1.15rem;
  margin-top: 10px;
  letter-spacing: 0.03em;
  font-style: italic;
}

/* Main content */
main {
  max-width: 900px;
  width: 100%;
  font-size: 1.1rem;
  line-height: 1.8;
  text-align: center;
  color: #003049;
  padding: 0 15px 50px;
}

/* Back button */
.back-btn {
  display: inline-block;
  margin-top: 40px;
  background-color: #00aaff;
  color: white;
  padding: 12px 24px;
  border-radius: 8px;
  font-weight: 600;
  text-decoration: none;
  box-shadow: 0 4px 15px rgba(0, 170, 255, 0.2);
  transition: background-color 0.3s ease, box-shadow 0.3s ease;
  user-select: none;
}

.back-btn:hover {
  background-color: #006db3;
  box-shadow: 0 6px 20px rgba(0, 109, 179, 0.4);
}

/* Responsive tweaks */
@media (max-width: 600px) {
  header h1 {
    font-size: 2.4rem;
  }

  nav ul {
    gap: 20px;
  }

  nav ul li a {
    font-size: 1rem;
    padding: 5px 8px;
  }

  main {
    font-size: 1rem;
    padding: 0 10px 30px;
  }
}
/* Projects Grid */
.projectGrid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 40px;
  max-width: 1000px;
  width: 100%;
  margin: 0 auto 50px;
  padding: 0 15px;
}

/* Each project card */
.project {
  background: linear-gradient(145deg, #f0f9ff, #d9f0ff);
  border-radius: 20px;
  box-shadow:
    8px 8px 15px rgba(0, 108, 179, 0.25),
    -8px -8px 20px rgba(255, 255, 255, 0.9);
  padding: 25px 30px 35px;
  display: flex;
  flex-direction: column;
  align-items: center;
  user-select: none;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.project:hover {
  transform: translateY(-8px);
  box-shadow:
    12px 12px 30px rgba(0, 108, 179, 0.35),
    -12px -12px 30px rgba(255, 255, 255, 1);
}

/* Project title */
.project h3 {
  color: #0072ff;
  font-weight: 700;
  margin-bottom: 12px;
  font-size: 1.5rem;
  text-align: center;
}

/* Project description */
.project p {
  color: #003049;
  margin-bottom: 20px;
  text-align: center;
  font-size: 1rem;
  line-height: 1.4;
  min-height: 60px; /* consistent height */
}

/* Project images */
.project-img,
.project-canvas {
  width: 100%;
  max-width: 320px;
  border-radius: 16px;
  border: 2px solid #00aaff;
  background: #f0f9ff;
  box-shadow: inset 0 0 20px rgba(0, 170, 255, 0.15);
  margin-bottom: 15px;
  user-select: none;
}

/* Score text */
.score {
  font-weight: 700;
  color: #0072ff;
  font-size: 1.2rem;
  margin-top: 0;
  margin-bottom: 15px;
}

/* Launch buttons */
.donate-btn {
  background-color: #00aaff;
  color: white;
  padding: 12px 28px;
  border-radius: 14px;
  font-weight: 700;
  font-size: 1.1rem;
  text-decoration: none;
  box-shadow: 0 6px 20px rgba(0, 170, 255, 0.25);
  transition: background-color 0.3s ease, box-shadow 0.3s ease;
  user-select: none;
}

.donate-btn:hover {
  background-color: #006db3;
  box-shadow: 0 8px 30px rgba(0, 109, 179, 0.5);
  cursor: pointer;
}

/* Responsive tweaks */
@media (max-width: 480px) {
  .projectGrid {
    grid-template-columns: 1fr;
    gap: 30px;
    padding: 0 10px;
  }

  .project {
    padding: 20px 20px 30px;
  }
}
/* Pricing page */

.plans {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 40px;
  max-width: 1000px;
  width: 100%;
  margin: 0 auto 50px;
  padding: 0 15px;
}

.plan {
  background: linear-gradient(145deg, #111827, #1e293b);
  border-radius: 20px;
  border: 1px solid #374151;
  box-shadow:
    6px 6px 18px rgba(0, 170, 255, 0.15),
    -6px -6px 18px rgba(0, 109, 179, 0.25);
  padding: 30px 25px 35px;
  display: flex;
  flex-direction: column;
  align-items: center;
  color: #e0f7fa;
  user-select: none;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.plan:hover {
  transform: translateY(-6px);
  box-shadow:
    10px 10px 28px rgba(0, 170, 255, 0.35),
    -10px -10px 28px rgba(0, 109, 179, 0.5);
}

.plan h2 {
  font-size: 1.8rem;
  margin-bottom: 10px;
  color: #00ffff;
  font-weight: 700;
  text-align: center;
}

.price {
  font-size: 2.4rem;
  margin: 10px 0 25px;
  color: #a7f1ff;
  font-weight: 700;
}

.features {
  list-style: none;
  padding-left: 0;
  margin: 0;
  width: 100%;
  font-size: 1rem;
  color: #c0dfe9;
}

.features li {
  margin-bottom: 12px;
  padding-left: 20px;
  position: relative;
}

.features li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: #00ffff;
  font-weight: 900;
  font-size: 1.3rem;
  line-height: 1;
  top: 1px;
}

.buy-button {
  margin-top: auto;
  padding: 12px 28px;
  background-color: #00ffff;
  border: none;
  border-radius: 12px;
  color: #111827;
  font-weight: 700;
  font-size: 1.1rem;
  cursor: pointer;
  box-shadow: 0 5px 20px rgba(0, 255, 255, 0.4);
  transition: background-color 0.3s ease, box-shadow 0.3s ease;
  user-select: none;
  width: 100%;
  max-width: 250px;
}

.buy-button:hover {
  background-color: #00dddd;
  box-shadow: 0 8px 28px rgba(0, 221, 221, 0.6);
}

/* Popup */
.popup {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(10, 10, 20, 0.85);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}

.popup-content {
  background: #111827;
  padding: 30px 35px;
  border-radius: 20px;
  text-align: center;
  max-width: 320px;
  box-shadow: 0 0 30px rgba(0, 255, 255, 0.4);
  color: #e0f7fa;
}

.spinner {
  border: 4px solid #111827;
  border-top: 4px solid #00ffff;
  border-radius: 50%;
  width: 40px;
  height: 40px;
  margin: 20px auto 15px;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.popup-content button {
  margin-top: 20px;
  padding: 10px 22px;
  border: none;
  background: #00ffff;
  color: #111827;
  font-weight: 700;
  border-radius: 10px;
  cursor: pointer;
  user-select: none;
  transition: background-color 0.3s ease;
}

.popup-content button:hover {
  background-color: #00dddd;
}

/* Responsive tweaks */
@media (max-width: 480px) {
  .plans {
    grid-template-columns: 1fr;
    gap: 30px;
    padding: 0 10px;
  }

  .buy-button {
    max-width: 100%;
  }
}