@font-face {
  font-family: "Vazir";
  src:
    url("../fonts/Vazir-Medium.ttf") format("truetype"),
    url("../fonts/Vazir-Medium.woff2") format("woff2");
}

:root {
  --glass-bg: rgba(255, 255, 255, 0.25);
  --glass-border: rgba(255, 255, 255, 0.4);
  --text: #1d1d1f;
  --primary: #007aff;
}

* {
  box-sizing: border-box;
  text-decoration: none;
  color: #1d1d1f;
  font-family: "Vazir";
}

body {
  position: relative;
  margin: 0;
  background: linear-gradient(135deg, #ffffff, #bebebe);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
}

.container {
  width: 100%;
  padding: 20px;
  font-family: "Vazir";
}

.card {
  max-width: 520px;
  margin: auto;
  padding: 25px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
  backdrop-filter: blur(3.5px);
  -webkit-backdrop-filter: blur(3.5px);
  border: 1px solid rgba(255, 255, 255, 0.54);
  display: flex;
  flex-direction: column;
  gap: 16px;
  animation: fadeIn 0.8s ease;
}

#shapeSelect {
  width: 100%;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

h1 {
  text-align: center;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.select-wrapper {
  background: var(--glass-bg);
  backdrop-filter: blur(15px);
  border-radius: 14px;
  border: 1px solid var(--glass-border);
}

select,
input {
  padding: 12px;
  border-radius: 14px;
  border: none;
  background: transparent;
  font-size: 15px;
  outline: none;
}

input {
  border: 1px solid #ddd;
  transition: 0.3s;
}

input:focus {
  border-color: var(--primary);
  transform: scale(1.02);
}

button {
  padding: 14px;
  border-radius: 16px;
  border: none;
  background: var(--primary);
  color: white;
  font-size: 16px;
  cursor: pointer;
  transition: 0.2s;
}

button:hover {
  transform: scale(1.01);
  background: #0069d9;
}

.info-box,
.results-box {
  background: rgba(255, 255, 255, 0.35);
  backdrop-filter: blur(15px);
  padding: 14px;
  border-radius: 16px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  animation: pop 0.4s ease;
}

@keyframes pop {
  from {
    opacity: 0;
    transform: scale(0.95);
  }

  to {
    opacity: 1;
    transform: scale(1);
  }
}

.hidden {
  display: none;
}

option:hover {
  cursor: pointer !important;
}

@media (max-width: 600px) {
  .card {
    padding: 18px;
  }
}

footer {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  text-align: center;
  padding: 10px 0;
}

footer .creator {
  margin: 0;
  font-size: 14px;
}

a:hover {
  cursor: pointer;
  text-decoration: underline;
}

.about-us {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.goal {
  text-align: justify;
}

.go-back {
  color: #007aff;
  cursor: pointer;
  text-decoration: none;
  text-align: left;
}