/* Not Found Page */
#not-found,
.not-found {
  padding: 4rem 1rem;
  text-align: center;
}

#not-found .btn,
.not-found .btn,
#not-found button,
.not-found button {
  display: inline-block;
  background: #fff;
  color: var(--np-primary);
  padding: .9rem 2.2rem;
  border-radius: var(--np-radius);
  font-weight: 700;
  box-shadow: var(--np-shadow);
  transition: transform .2s;
  text-decoration: none;
}

#not-found .btn:hover,
.not-found .btn:hover,
#not-found button:hover,
.not-found button:hover {
  transform: translateY(-3px);
}

/* About Page */
.about-page {
  max-width: 800px;
  margin-inline: auto;
  line-height: 1.7;
}

/* Signup Page */
.signup-page {
  padding: 4rem 1rem;
  max-width: 420px;
  margin-inline: auto;
  background: linear-gradient(135deg, #f8fafc 0%, #e0e7ef 100%);
  border-radius: 1.5rem;
  box-shadow: 0 8px 32px rgba(60, 72, 88, 0.12);
}

.signup-page h1 {
  text-align: center;
  margin-bottom: 2rem;
  font-size: 2rem;
  font-weight: 700;
  color: var(--np-primary, #2a4365);
  letter-spacing: -1px;
}

.signup-form {
  background: #fff;
  padding: 2.5rem 2rem 2rem 2rem;
  border-radius: 1.25rem;
  box-shadow: 0 4px 24px rgba(60, 72, 88, 0.10);
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.signup-form .field {
  margin-bottom: 0;
  display: flex;
  flex-direction: column;
  gap: .5rem;
}

.signup-form label {
  font-weight: 600;
  color: #2a4365;
  font-size: 1rem;
}

.signup-form input[type="text"],
.signup-form input[type="email"],
.signup-form input[type="password"] {
  width: 100%;
  padding: .85rem 1rem;
  border: 1.5px solid #d1d5db;
  border-radius: .75rem;
  background: #f9fafb;
  font-size: 1rem;
  transition: border-color .2s, box-shadow .2s;
}

.signup-form input[type="text"]:focus,
.signup-form input[type="email"]:focus,
.signup-form input[type="password"]:focus {
  outline: none;
  border-color: var(--np-primary, #3182ce);
  box-shadow: 0 0 0 2px #c3dafc;
  background: #fff;
}

.signup-form .radio-options {
  display: flex;
  gap: 1.5rem;
  margin-top: .25rem;
}

.signup-form .radio-options label {
  font-weight: 500;
  color: #374151;
  font-size: .97rem;
  display: flex;
  align-items: center;
  gap: .4rem;
  cursor: pointer;
}

.signup-form input[type="radio"] {
  accent-color: var(--np-primary, #3182ce);
  width: 1.1em;
  height: 1.1em;
}

.signup-form .field-label {
  font-weight: 600;
  color: #2a4365;
  margin-bottom: .1rem;
}

.signup-form button.btn {
  margin-top: 1rem;
  width: 100%;
  background: linear-gradient(90deg, var(--np-primary, #3182ce) 60%, #2b6cb0 100%);
  color: #fff;
  font-weight: 700;
  font-size: 1.1rem;
  padding: .95rem 0;
  border: none;
  border-radius: .75rem;
  box-shadow: 0 2px 8px rgba(49, 130, 206, 0.08);
  transition: background .2s, transform .15s;
  cursor: pointer;
  letter-spacing: .5px;
}

.signup-form button.btn:hover {
  background: linear-gradient(90deg, #2b6cb0 60%, var(--np-primary, #3182ce) 100%);
  transform: translateY(-2px) scale(1.02);
}

.nep-errors {
  background: #fff0f0;
  border: 1px solid #ffb3b3;
  border-radius: .75rem;
  padding: 1rem 1.5rem;
  margin-bottom: 1.5rem;
  box-shadow: 0 2px 8px rgba(255, 0, 0, 0.04);
}

.nep-errors p {
  color: #c00;
  margin: 0 0 .5rem;
  font-weight: 500;
  font-size: 1rem;
  letter-spacing: .2px;
}