body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: #ffffff;
  color: #111827;
  margin: 0;
  padding: 0;
}
.main-title {
  text-align: center;
  margin-top: 40px;
  font-size: 1.9rem;
  font-weight: 700;
}
.container {
  max-width: 900px;
  background: #f3f4f6;
  margin: 20px auto;
  border-radius: 12px;
  padding: 30px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.05);
}
.sub-title {
  text-align: center;
  margin-bottom: 20px;
  font-size: 1.2rem;
  font-weight: 600;
}
footer {
  text-align: center;
  font-size: 0.9rem;
  color: #374151;
  margin: 20px 0;
}
footer a {
  color: #2563eb;
  text-decoration: none;
  font-weight: 600;
}
footer a:hover { text-decoration: underline; }
.btn {
  background: none;
  color: #111827;
  padding: 8px 14px;
  border: 1px solid #d1d5db;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 500;
  transition: all 0.2s ease;
}
.btn:hover {
  background: #f3f4f6;
  border-color: #9ca3af;
}

/* 🌟 Variasi warna tombol khusus */
#downloadAllBtn {
  background: #2563eb;
  color: white;
  border-color: #2563eb;
}
#downloadAllBtn:hover {
  background: #1d4ed8;
}

#zipBtn {
  background: #22c55e;
  color: white;
  border-color: #22c55e;
}
#zipBtn:hover {
  background: #16a34a;
}

.back-to-home {
  text-align: center;
  margin: 24px 0 10px 0;
}
.back-to-home a {
  color: #111827;
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
}
.back-to-home a:hover {
  text-decoration: underline;
  color: #2563eb;
}
.uploader { border: 2px dashed #d1d5db; padding: 18px; border-radius: 8px; background: #ffffff; display: flex; gap: 12px; align-items: center; }
.left { flex: 1; min-height: 86px; display: flex; flex-direction: column; justify-content: center; }
.controls { display: flex; gap: 8px; align-items: center; margin-top: 8px; }
input[type=file] { display: none; }
.drop-hint { font-size: 13px; color: #4b5563; }
.files { margin-top: 18px; display: grid; gap: 10px; }
.file-item { display: flex; gap: 12px; align-items: center; padding: 10px; border-radius: 6px; background: #ffffff; border: 1px solid #e5e7eb; }
.meta { flex: 1; }
.meta b { display: block; color: #111827; }
.meta small { color: #4b5563; }
.actions { display: flex; gap: 8px; align-items: center; }
.progress { height: 6px; background: #e5e7eb; border-radius: 999px; overflow: hidden; margin-top: 6px; }
.progress > i { display: block; height: 100%; background: #2563eb; width: 0%; }
.toolbar { display: flex; gap: 8px; margin-top: 14px; }
.small { font-size: 12px; color: #4b5563; }
.notify { position: fixed; top: 50%; left: 50%; transform: translate(-50%, -50%); background: #f3f4f6; color: #111827; padding: 10px 16px; border-radius: 8px; box-shadow: 0 2px 10px rgba(0,0,0,0.1); font-size: 22px; font-weight: 600; opacity: 0; pointer-events: none; transition: opacity 0.3s ease; z-index: 9999; }
.notify.show { opacity: 1; pointer-events: auto; }
@media (max-width:640px) {
  .uploader { flex-direction: column; align-items: stretch; }
  .actions { flex-wrap: wrap; }
}