:root {
  --primary-purple: #7b60f4;
  --accent-pink: #e91e63;
  --light-gray: #f8f9fa;
  --dark-text: #333333;
  --border-color: #e2e7ea;
  --font-family: 'Poppins', sans-serif;
}

#is-birligi-pageContent {
  margin-top: 5em;
}

body {
  font-family: var(--font-family);
  background-color: #fff;
  color: var(--dark-text);
}

/* Navbar Placeholder */
.is-birligi-navbar-placeholder {
  padding: 1rem;
  background-color: #fff;
  border-bottom: 1px solid var(--border-color);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

/* Ana İçerik Alanı */
#is-birligi-pageContent {
  padding-top: 4rem;
  padding-bottom: 4rem;
}

/* Başlık Stilleri */
.is-birligi-section-title {
  font-weight: 700;
  color: var(--dark-text);
  margin-bottom: 1rem;
  font-size: 2.5rem;
}

.is-birligi-section-title .is-birligi-highlight {
  background: linear-gradient(
    90deg,
    var(--primary-purple),
    var(--accent-pink),
    var(--primary-purple)
  );
  background-size: 200% auto;
  animation: wave-animation 4s ease-in-out infinite;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.is-birligi-section-subtitle {
  font-size: 1.1rem;
  color: #6c757d;
  max-width: 700px;
  margin: 0 auto 3rem auto;
}

.is-birligi-hero-image-container img {
  max-width: 100%;
  height: auto;
  border-radius: 20px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

/* Üyelik Kartları */
.is-birligi-membership-card {
  background-color: #fff;
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 2rem;
  text-align: center;
  transition: all 0.3s ease;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.is-birligi-membership-card:hover,
.is-birligi-membership-card.is-birligi-selected {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px rgba(123, 96, 244, 0.2);
  border-color: var(--primary-purple);
}

.is-birligi-membership-card .is-birligi-card-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  background: linear-gradient(90deg, var(--primary-purple), var(--accent-pink));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.is-birligi-membership-card .is-birligi-card-title {
  font-weight: 700;
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.is-birligi-membership-card .is-birligi-card-description {
  color: #6c757d;
  font-size: 0.95rem;
  flex-grow: 1;
}

.is-birligi-membership-card ul {
  list-style-type: none;
  padding: 0;
  margin: 1.5rem 0;
  text-align: left;
  flex-grow: 1;
}

.is-birligi-membership-card ul li {
  margin-bottom: 0.75rem;
  display: flex;
  align-items: flex-start;
}

.is-birligi-membership-card ul li .fa-check-circle {
  color: var(--primary-purple);
  margin-right: 0.75rem;
  margin-top: 4px;
}

/* Form Alanı */
#is-birligi-form-container {
  background-color: var(--light-gray);
  padding: 3rem;
  border-radius: 16px;
  margin-top: 4rem;
}

.is-birligi-form-section {
  transition: opacity 0.5s ease;
}

.is-birligi-form-section.is-birligi-hidden {
  display: none;
  opacity: 0;
}

.form-control:focus {
  border-color: var(--primary-purple);
  box-shadow: 0 0 0 0.25rem rgba(123, 96, 244, 0.25);
}

/* Buton Stilleri */
.is-birligi-btn-custom {
  background-color: var(--primary-purple);
  color: #fff;
  font-weight: 600;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  border: none;
  transition: all 0.3s ease;
}

.is-birligi-btn-custom:hover {
  background-color: #6a4fd6;
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

/* Footer Placeholder */
.is-birligi-footer-placeholder {
  padding: 3rem 1rem;
  background-color: var(--dark-text);
  color: #fff;
  text-align: center;
  margin-top: 4rem;
}

@keyframes wave-animation {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}