/* Google Font: Poppins */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: 'Poppins', sans-serif;
}

:root {
  --primary: #6366f1; /* Indigo */
  --secondary: #ec4899; /* Pink */
  --dark: #111827; /* Grey-900 */
  --light: #f3f4f6; /* Grey-100 */
  --radius: 8px;
  --transition: 0.3s ease;
}

body {
  background: var(--light);
  color: var(--dark);
  line-height: 1.6;
}

.container {
  width: 90%;
  max-width: 1100px;
  margin: auto;
}

/* Header */
.header {
  background: #fff;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}
.header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
}
.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
}
.logo a {
  color: inherit;
  text-decoration: none;
}
nav ul {
  list-style: none;
  display: flex;
  gap: 1.5rem;
}
nav a {
  text-decoration: none;
  color: var(--dark);
  font-weight: 500;
  transition: color var(--transition);
}
nav a:hover {
  color: var(--primary);
}

/* Hero */
.hero {
  padding: 4rem 0 6rem;
  text-align: center;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
}
.hero h2 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}
.hero p {
  font-size: 1.1rem;
  margin-bottom: 2rem;
}

/* Buttons */
.btn-primary, .btn-secondary {
  display: inline-block;
  padding: 0.75rem 2rem;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  font-weight: 600;
  text-decoration: none;
  transition: transform var(--transition), background var(--transition);
}
.btn-primary {
  background: #fff;
  color: var(--primary);
}
.btn-primary:hover {
  transform: translateY(-3px);
  background: var(--light);
}
.btn-secondary {
  background: #fff;
  color: var(--secondary);
}
.btn-secondary:hover {
  transform: translateY(-3px);
  background: var(--light);
}

/* Sections */
.subscribe-section {
  padding: 4rem 0;
  background: #fff;
  border-top-left-radius: 2rem;
  border-top-right-radius: 2rem;
  margin-top: -2rem;
}

.unsubscribe-section {
  padding: 4rem 0;
  background: #fff;
  border-top-left-radius: 2rem;
  border-top-right-radius: 2rem;
  margin-top: 2rem;
}
.subscribe-section h3, .unsubscribe-section h3 {
  text-align: center;
  margin-bottom: 2rem;
  font-size: 2rem;
}
.form-group {
  display: flex;
  flex-direction: column;
  margin-bottom: 1.5rem;
}
.form-group label {
  margin-bottom: 0.5rem;
}
.form-group input {
  padding: 0.75rem 1rem;
  border: 2px solid var(--light);
  border-radius: var(--radius);
  font-size: 1rem;
  transition: border var(--transition);
}
.form-group input:focus {
  outline: none;
  border-color: var(--primary);
}

.subscribe-form, .unsubscribe-form {
  max-width: 500px;
  margin: auto;
}

/* Radio Group */
.radio-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.radio-group input {
  margin-right: 0.5rem;
}

/* --- Button Redesign --- */
.btn-primary, .btn-secondary {
  display: block;
  width: fit-content;
  margin: 2rem auto 0;
  padding: 1rem 3rem;
  font-size: 1.1rem;
  font-weight: 600;
  border-radius: 50px;
  border: none;
  text-decoration: none;
  transition: transform var(--transition), box-shadow var(--transition);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  color: #fff;
}

.btn-secondary {
  background: linear-gradient(135deg, var(--secondary) 0%, var(--primary) 100%);
  color: #fff;
}

.btn-primary:hover, .btn-secondary:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25);
}

/* Footer */
.footer {
  background: var(--dark);
  color: #fff;
  text-align: center;
  padding: 1rem 0;
}

/* Toast Notification */
.toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(100%);
  background: var(--dark);
  color: #fff;
  padding: 1rem 2rem;
  border-radius: var(--radius);
  box-shadow: 0 4px 15px rgba(0,0,0,0.2);
  opacity: 0;
  transition: opacity 0.4s ease, transform 0.4s ease;
  z-index: 9999;
}
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* Scroll Reveal Animations */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.active {
  opacity: 1;
  transform: translateY(0);
}