body {
  background: #ffffff;
}
.hero {
  margin-top: 4rem;
  margin-bottom: 2rem;
}
.card-install {
  max-width: 720px;
  margin: 0 auto;
}
.app-icon {
  width: 84px;
  height: 84px;
  object-fit: contain;
  border-radius: 16px;
  background: #fff;
  padding: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}
.btn-install {
  min-width: 220px;
}
.small-muted {
  color: #6c757d;
  font-size: 0.95rem;
}
.captcha-box {
  display: flex;
  align-items: center;
  gap: 10px;
}
#captchaCanvas {
  border-radius: 6px;
  border: 1px solid #ccc;
  background: #f8f9fa;
}

/* INSTALL GUIDE MODAL */
.modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 9999;
  background-color: rgba(0, 0, 0, 0.5);
  justify-content: center;
  align-items: center;
  backdrop-filter: blur(3px);
  transition: opacity 0.3s ease;
}

.modal-content {
  background: var(--modal-bg, #fff);
  border-radius: 20px;
  padding: 35px;
  width: 90%;
  max-width: 720px;
  font-family: "Manrope", sans-serif;
  line-height: 1.7;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
  overflow-y: auto;
  max-height: 90vh;
  animation: slideIn 0.4s ease;
}

@keyframes slideIn {
  from {
    transform: translateY(20px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.close {
  float: right;
  font-size: 28px;
  font-weight: bold;
  cursor: pointer;
  color: #555;
  transition: color 0.2s;
}
.close:hover {
  color: #ff3b3b;
}

.modal-content h2,
.modal-content h3 {
  color: var(--text-primary, #111);
  margin-top: 18px;
}

.modal-content p,
.modal-content li {
  color: var(--text-secondary, #444);
}

.install-btn {
  background-color: #007bff;
  color: white;
  padding: 12px 20px;
  border: none;
  border-radius: 12px;
  cursor: pointer;
  font-size: 16px;
  transition: 0.25s;
  margin: 15px auto;
  display: block;
}
.install-btn:hover {
  background-color: #0056b3;
}

.closing-text {
  margin-top: 25px;
  text-align: center;
  font-size: 15px;
  color: var(--text-secondary, #555);
}

.highlight {
  color: #007bff;
  font-weight: 600;
}

/* DARK MODE */
.modal.dark .modal-content {
  background: #1e1e1e;
  color: #ddd;
  --text-primary: #fafafa;
  --text-secondary: #ccc;
  --modal-bg: #1e1e1e;
}
.modal.dark .close {
  color: #ccc;
}
.modal.dark .close:hover {
  color: #ff4d4d;
}